Christopher Haster
122864f4b6
Reading more into POSIX, it seems that most of the write functions do have special behavior built into what would implicitly be a noop. It's difficult to find, since it usually doesn't matter, but consider the m_time field. The following operations do _not_ update m_time: - write when size=0 - truncate when size does not change - fruncate when size does not change I think it's safe to extend these to sync broadcasts in littlefs, and only guarantee sync broadcasts when the file state has changed (even though that may mean other file handles may remain out-of-date!). In this interpretation, the "write operations" described in POSIX more mean the implicit write operations effected by write/truncate/fruncate. That being said, it's not clear what the best approach is, desync files make this all a bit more muddled... This may also be reverted.
3165 lines
103 KiB
TOML
3165 lines
103 KiB
TOML
# Test multiple open file handles in different r/w configurations
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after = 'test_fwrite'
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# Some specific tests
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[cases.test_fsync_sync_wrr]
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code = '''
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lfs_t lfs;
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lfsr_format(&lfs, CFG) => 0;
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lfsr_mount(&lfs, CFG) => 0;
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// a - writer
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// b - reader kept open, recvs updates from a
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// c - reader kept closed, checks disk state
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lfsr_file_t a;
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lfsr_file_t b;
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lfsr_file_t c;
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uint8_t rbuf[256];
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lfsr_file_open(&lfs, &a, "jello",
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LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
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lfsr_file_open(&lfs, &b, "jello", LFS_O_RDONLY) => 0;
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// write to a
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lfsr_file_write(&lfs, &a, "hello!", strlen("hello!"))
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=> strlen("hello!");
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// should not show up in b yet
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lfsr_file_read(&lfs, &b, rbuf, sizeof(rbuf)) => 0;
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// or on disk
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lfsr_file_open(&lfs, &c, "jello", LFS_O_RDONLY) => 0;
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lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => 0;
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lfsr_file_close(&lfs, &c) => 0;
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// sync a
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lfsr_file_sync(&lfs, &a) => 0;
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// now our write should show up in b
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lfsr_file_read(&lfs, &b, rbuf, sizeof(rbuf)) => strlen("hello!");
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assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
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// and on disk
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lfsr_file_open(&lfs, &c, "jello", LFS_O_RDONLY) => 0;
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lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
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assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
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lfsr_file_close(&lfs, &c) => 0;
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// lets rewrite a
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lfsr_file_rewind(&lfs, &a) => 0;
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lfsr_file_write(&lfs, &a, "bonjour!", strlen("bonjour!"))
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=> strlen("bonjour!");
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// b should still have previous contents
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lfsr_file_rewind(&lfs, &b) => 0;
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lfsr_file_read(&lfs, &b, rbuf, sizeof(rbuf)) => strlen("hello!");
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assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
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// and on disk
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lfsr_file_open(&lfs, &c, "jello", LFS_O_RDONLY) => 0;
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lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
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assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
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lfsr_file_close(&lfs, &c) => 0;
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// sync a
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lfsr_file_sync(&lfs, &a) => 0;
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// now our write should show up in b
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lfsr_file_rewind(&lfs, &b) => 0;
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lfsr_file_read(&lfs, &b, rbuf, sizeof(rbuf)) => strlen("bonjour!");
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assert(memcmp(rbuf, "bonjour!", strlen("bonjour!")) == 0);
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// and on disk
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lfsr_file_open(&lfs, &c, "jello", LFS_O_RDONLY) => 0;
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lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("bonjour!");
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assert(memcmp(rbuf, "bonjour!", strlen("bonjour!")) == 0);
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lfsr_file_close(&lfs, &c) => 0;
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// lets rewrite a one last time
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lfsr_file_rewind(&lfs, &a) => 0;
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lfsr_file_write(&lfs, &a, "ohayo!", strlen("ohayo!"))
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=> strlen("ohayo!");
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// b should still have previous contents
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lfsr_file_rewind(&lfs, &b) => 0;
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lfsr_file_read(&lfs, &b, rbuf, sizeof(rbuf)) => strlen("bonjour!");
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assert(memcmp(rbuf, "bonjour!", strlen("bonjour!")) == 0);
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// and on disk
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lfsr_file_open(&lfs, &c, "jello", LFS_O_RDONLY) => 0;
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lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("bonjour!");
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assert(memcmp(rbuf, "bonjour!", strlen("bonjour!")) == 0);
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lfsr_file_close(&lfs, &c) => 0;
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// close a
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lfsr_file_close(&lfs, &a) => 0;
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// now our write should show up in b
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lfsr_file_rewind(&lfs, &b) => 0;
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lfsr_file_read(&lfs, &b, rbuf, sizeof(rbuf)) => strlen("ohayo!r!");
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assert(memcmp(rbuf, "ohayo!r!", strlen("ohayo!r!")) == 0);
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// and on disk
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lfsr_file_open(&lfs, &c, "jello", LFS_O_RDONLY) => 0;
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lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("ohayo!r!");
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assert(memcmp(rbuf, "ohayo!r!", strlen("ohayo!r!")) == 0);
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lfsr_file_close(&lfs, &c) => 0;
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lfsr_file_close(&lfs, &b) => 0;
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lfsr_unmount(&lfs) => 0;
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'''
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[cases.test_fsync_sync_wwrr]
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code = '''
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lfs_t lfs;
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lfsr_format(&lfs, CFG) => 0;
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lfsr_mount(&lfs, CFG) => 0;
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// a - writer
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// b - writer
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// c - reader kept open, recvs updates from a/b
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// d - reader kept closed, checks disk state
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lfsr_file_t a;
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lfsr_file_t b;
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lfsr_file_t c;
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lfsr_file_t d;
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uint8_t rbuf[256];
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lfsr_file_open(&lfs, &a, "jello",
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LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
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lfsr_file_open(&lfs, &b, "jello", LFS_O_WRONLY) => 0;
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lfsr_file_open(&lfs, &c, "jello", LFS_O_RDONLY) => 0;
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// write to a and b
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lfsr_file_write(&lfs, &a, "hello!", strlen("hello!"))
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=> strlen("hello!");
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lfsr_file_write(&lfs, &b, "bonjour!", strlen("bonjour!"))
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=> strlen("bonjour!");
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// should not show up in c yet
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lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => 0;
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// or on disk
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lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
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lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => 0;
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lfsr_file_close(&lfs, &d) => 0;
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// sync a
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lfsr_file_sync(&lfs, &a) => 0;
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// now our write should show up in c
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lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
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assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
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// and on disk
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lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
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lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("hello!");
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assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
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lfsr_file_close(&lfs, &d) => 0;
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// sync b
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lfsr_file_sync(&lfs, &b) => 0;
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// b's contents were clobbered, so we should see a
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lfsr_file_rewind(&lfs, &c) => 0;
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lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
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assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
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// and on disk
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lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
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lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("hello!");
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assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
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lfsr_file_close(&lfs, &d) => 0;
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// lets rewrite b
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lfsr_file_rewind(&lfs, &b) => 0;
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lfsr_file_write(&lfs, &b, "ohayo!", strlen("ohayo!"))
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=> strlen("ohayo!");
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// c should still have previous contents
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lfsr_file_rewind(&lfs, &c) => 0;
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lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
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assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
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// and on disk
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lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
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lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("hello!");
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assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
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lfsr_file_close(&lfs, &d) => 0;
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// sync b
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lfsr_file_sync(&lfs, &b) => 0;
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// now our write should show up in c
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lfsr_file_rewind(&lfs, &c) => 0;
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lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("ohayo!");
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assert(memcmp(rbuf, "ohayo!", strlen("ohayo!")) == 0);
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// and on disk
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lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
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lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("ohayo!");
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assert(memcmp(rbuf, "ohayo!", strlen("ohayo!")) == 0);
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lfsr_file_close(&lfs, &d) => 0;
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// lets rewrite a one last time
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lfsr_file_rewind(&lfs, &a) => 0;
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lfsr_file_write(&lfs, &a, "zdrasti!", strlen("zdrasti!"))
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=> strlen("zdrasti!");
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// c should still have previous contents
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lfsr_file_rewind(&lfs, &c) => 0;
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lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("ohayo!");
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assert(memcmp(rbuf, "ohayo!", strlen("ohayo!")) == 0);
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// and on disk
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lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
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lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("ohayo!");
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assert(memcmp(rbuf, "ohayo!", strlen("ohayo!")) == 0);
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lfsr_file_close(&lfs, &d) => 0;
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// close a and b
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lfsr_file_close(&lfs, &a) => 0;
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lfsr_file_close(&lfs, &b) => 0;
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// now our write should show up in c
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lfsr_file_rewind(&lfs, &c) => 0;
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lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("zdrasti!");
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assert(memcmp(rbuf, "zdrasti!", strlen("zdrasti!")) == 0);
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// and on disk
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lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
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lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("zdrasti!");
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assert(memcmp(rbuf, "zdrasti!", strlen("zdrasti!")) == 0);
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lfsr_file_close(&lfs, &d) => 0;
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lfsr_file_close(&lfs, &c) => 0;
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lfsr_unmount(&lfs) => 0;
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'''
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[cases.test_fsync_sync_wwrr_noop]
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code = '''
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lfs_t lfs;
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lfsr_format(&lfs, CFG) => 0;
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lfsr_mount(&lfs, CFG) => 0;
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// a - writer
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// b - writer
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// c - reader kept open, recvs updates from a/b
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// d - reader kept closed, checks disk state
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lfsr_file_t a;
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lfsr_file_t b;
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lfsr_file_t c;
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lfsr_file_t d;
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uint8_t rbuf[256];
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lfsr_file_open(&lfs, &a, "jello",
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LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
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lfsr_file_open(&lfs, &b, "jello", LFS_O_WRONLY) => 0;
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lfsr_file_open(&lfs, &c, "jello", LFS_O_RDONLY) => 0;
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// write to a and b
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lfsr_file_write(&lfs, &a, "hello!", strlen("hello!"))
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=> strlen("hello!");
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lfsr_file_write(&lfs, &b, "bonjour!", strlen("bonjour!"))
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=> strlen("bonjour!");
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// should not show up in c yet
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lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => 0;
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// or on disk
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lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
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lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => 0;
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lfsr_file_close(&lfs, &d) => 0;
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// sync a
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lfsr_file_sync(&lfs, &a) => 0;
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// now our write should show up in c
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lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
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assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
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// and on disk
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lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
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lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("hello!");
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assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
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lfsr_file_close(&lfs, &d) => 0;
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// sync b
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lfsr_file_sync(&lfs, &b) => 0;
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// b's contents were clobbered, so we should see a
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lfsr_file_rewind(&lfs, &c) => 0;
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lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
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assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
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// and on disk
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lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
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lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("hello!");
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assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
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lfsr_file_close(&lfs, &d) => 0;
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// lets rewrite b
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lfsr_file_rewind(&lfs, &b) => 0;
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lfsr_file_write(&lfs, &b, "ohayo!", strlen("ohayo!"))
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=> strlen("ohayo!");
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// c should still have previous contents
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lfsr_file_rewind(&lfs, &c) => 0;
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lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
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assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
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// and on disk
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lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
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lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("hello!");
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assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
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lfsr_file_close(&lfs, &d) => 0;
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// sync a, without doing anything
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lfsr_file_sync(&lfs, &a) => 0;
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// c should still have previous contents
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lfsr_file_rewind(&lfs, &c) => 0;
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lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
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assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
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// and on disk
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lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
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lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("hello!");
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assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
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lfsr_file_close(&lfs, &d) => 0;
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// sync b, this gets tricky
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lfsr_file_sync(&lfs, &b) => 0;
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// b's contents were clobbered, so we should see a
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lfsr_file_rewind(&lfs, &c) => 0;
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lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
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assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
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// and on disk
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lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
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lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("hello!");
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assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
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lfsr_file_close(&lfs, &d) => 0;
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// lets rewrite b one last time, this time with sync
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lfsr_file_rewind(&lfs, &b) => 0;
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lfsr_file_write(&lfs, &b, "zdrasti!", strlen("zdrasti!"))
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=> strlen("zdrasti!");
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lfsr_file_sync(&lfs, &b) => 0;
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// now our write should show up in c
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lfsr_file_rewind(&lfs, &c) => 0;
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lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("zdrasti!");
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assert(memcmp(rbuf, "zdrasti!", strlen("zdrasti!")) == 0);
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// and on disk
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lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
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lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("zdrasti!");
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assert(memcmp(rbuf, "zdrasti!", strlen("zdrasti!")) == 0);
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lfsr_file_close(&lfs, &d) => 0;
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// close a and b
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lfsr_file_close(&lfs, &a) => 0;
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lfsr_file_close(&lfs, &b) => 0;
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// our write should show up in c
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lfsr_file_rewind(&lfs, &c) => 0;
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lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("zdrasti!");
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assert(memcmp(rbuf, "zdrasti!", strlen("zdrasti!")) == 0);
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// and on disk
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lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
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lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("zdrasti!");
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assert(memcmp(rbuf, "zdrasti!", strlen("zdrasti!")) == 0);
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lfsr_file_close(&lfs, &d) => 0;
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lfsr_file_close(&lfs, &c) => 0;
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lfsr_unmount(&lfs) => 0;
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'''
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[cases.test_fsync_sync_wwrr_append]
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code = '''
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lfs_t lfs;
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lfsr_format(&lfs, CFG) => 0;
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lfsr_mount(&lfs, CFG) => 0;
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// a - writer
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// b - writer
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// c - reader kept open, recvs updates from a/b
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// d - reader kept closed, checks disk state
|
|
lfsr_file_t a;
|
|
lfsr_file_t b;
|
|
lfsr_file_t c;
|
|
lfsr_file_t d;
|
|
uint8_t rbuf[256];
|
|
lfsr_file_open(&lfs, &a, "jello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL | LFS_O_APPEND) => 0;
|
|
lfsr_file_open(&lfs, &b, "jello", LFS_O_WRONLY | LFS_O_APPEND) => 0;
|
|
lfsr_file_open(&lfs, &c, "jello", LFS_O_RDONLY) => 0;
|
|
|
|
// write to a and b
|
|
lfsr_file_write(&lfs, &a, "hello!", strlen("hello!"))
|
|
=> strlen("hello!");
|
|
lfsr_file_write(&lfs, &b, "bonjour!", strlen("bonjour!"))
|
|
=> strlen("bonjour!");
|
|
|
|
// should not show up in c yet
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => 0;
|
|
// or on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => 0;
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
// sync a
|
|
lfsr_file_sync(&lfs, &a) => 0;
|
|
|
|
// now our write should show up in c
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
// sync b
|
|
lfsr_file_sync(&lfs, &b) => 0;
|
|
|
|
// b's contents were clobbered, so we should see a
|
|
lfsr_file_rewind(&lfs, &c) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
// lets rewrite b
|
|
lfsr_file_rewind(&lfs, &b) => 0;
|
|
lfsr_file_write(&lfs, &b, "ohayo!", strlen("ohayo!"))
|
|
=> strlen("ohayo!");
|
|
|
|
// c should still have previous contents
|
|
lfsr_file_rewind(&lfs, &c) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
// sync b
|
|
lfsr_file_sync(&lfs, &b) => 0;
|
|
|
|
// now our write should show up in c
|
|
lfsr_file_rewind(&lfs, &c) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!ohayo!");
|
|
assert(memcmp(rbuf, "hello!ohayo!", strlen("hello!ohayo!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("hello!ohayo!");
|
|
assert(memcmp(rbuf, "hello!ohayo!", strlen("hello!ohayo!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
// lets rewrite a one last time
|
|
lfsr_file_rewind(&lfs, &a) => 0;
|
|
lfsr_file_write(&lfs, &a, "zdrasti!", strlen("zdrasti!"))
|
|
=> strlen("zdrasti!");
|
|
|
|
// c should still have previous contents
|
|
lfsr_file_rewind(&lfs, &c) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!ohayo!");
|
|
assert(memcmp(rbuf, "hello!ohayo!", strlen("hello!ohayo!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("hello!ohayo!");
|
|
assert(memcmp(rbuf, "hello!ohayo!", strlen("hello!ohayo!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
// close a and b
|
|
lfsr_file_close(&lfs, &a) => 0;
|
|
lfsr_file_close(&lfs, &b) => 0;
|
|
|
|
// now our write should show up in c
|
|
lfsr_file_rewind(&lfs, &c) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf))
|
|
=> strlen("hello!ohayo!zdrasti!");
|
|
assert(memcmp(rbuf, "hello!ohayo!zdrasti!",
|
|
strlen("hello!ohayo!zdrasti!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf))
|
|
=> strlen("hello!ohayo!zdrasti!");
|
|
assert(memcmp(rbuf, "hello!ohayo!zdrasti!",
|
|
strlen("hello!ohayo!zdrasti!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
lfsr_file_close(&lfs, &c) => 0;
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
|
|
# Test multiple readers, this shouldn't really have any issues
|
|
[cases.test_fsync_rrrr]
|
|
defines.R = 4
|
|
defines.SIZE = [
|
|
'CACHE_SIZE/2',
|
|
'2*CACHE_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.CHUNK = '(SIZE+16-1) / 16'
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
// create a file
|
|
uint32_t prng = 42;
|
|
uint8_t before[SIZE];
|
|
for (lfs_size_t i = 0; i < SIZE; i++) {
|
|
before[i] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "jello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_write(&lfs, &file, before, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
// read R handles in parallel
|
|
lfsr_file_t readers[R];
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
lfsr_file_open(&lfs, &readers[r], "jello", LFS_O_RDONLY) => 0;
|
|
}
|
|
for (lfs_size_t i = 0; i < SIZE; i += CHUNK) {
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
uint8_t rbuf[CHUNK];
|
|
lfsr_file_read(&lfs, &readers[r], rbuf, CHUNK) => CHUNK;
|
|
assert(memcmp(rbuf, &before[i], CHUNK) == 0);
|
|
}
|
|
}
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
lfsr_file_close(&lfs, &readers[r]) => 0;
|
|
}
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
[cases.test_fsync_rrrr_fuzz]
|
|
defines.R = 4
|
|
defines.SEED = 'range(10)'
|
|
defines.N = 20
|
|
defines.SIZE = [
|
|
'CACHE_SIZE/2',
|
|
'2*CACHE_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.CHUNK = '(SIZE+16-1) / 16'
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
// create a file
|
|
uint32_t prng = SEED;
|
|
uint8_t before[SIZE];
|
|
for (lfs_size_t i = 0; i < SIZE; i++) {
|
|
before[i] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "jello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_write(&lfs, &file, before, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
// read R handles in parallel
|
|
lfsr_file_t readers[R];
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
lfsr_file_open(&lfs, &readers[r], "jello", LFS_O_RDONLY) => 0;
|
|
}
|
|
for (lfs_size_t i = 0; i < N; i++) {
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
// choose a random offset
|
|
lfs_off_t off = TEST_PRNG(&prng) % SIZE;
|
|
lfs_size_t size = lfs_min32(CHUNK, SIZE - off);
|
|
lfsr_file_seek(&lfs, &readers[r], off, LFS_SEEK_SET) => off;
|
|
|
|
// read
|
|
uint8_t rbuf[CHUNK];
|
|
lfsr_file_read(&lfs, &readers[r], rbuf, CHUNK) => size;
|
|
assert(memcmp(rbuf, &before[off], size) == 0);
|
|
}
|
|
}
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
lfsr_file_close(&lfs, &readers[r]) => 0;
|
|
}
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
# Test one writer, multiple readers
|
|
[cases.test_fsync_wrrr]
|
|
defines.R = 4
|
|
# 0 => no sync, readers not updated
|
|
# 1 => sync via lfsr_file_sync
|
|
# 2 => sync via LFS_O_SYNC
|
|
defines.SYNC = [0, 1, 2]
|
|
# 0 => no flush
|
|
# 1 => flush via lfsr_file_flush
|
|
# 2 => flush via LFS_O_FLUSH
|
|
defines.FLUSH = [0, 1, 2]
|
|
defines.SIZE = [
|
|
'CACHE_SIZE/2',
|
|
'2*CACHE_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.CHUNK = '(SIZE+16-1) / 16'
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
// create a file
|
|
uint32_t prng = 42;
|
|
uint8_t before[SIZE];
|
|
for (lfs_size_t i = 0; i < SIZE; i++) {
|
|
before[i] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
uint8_t after[SIZE];
|
|
memcpy(after, before, SIZE);
|
|
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "jello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_write(&lfs, &file, before, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
// write 1 handle, read R handles in parallel
|
|
lfsr_file_t writer;
|
|
lfsr_file_t readers[R];
|
|
lfsr_file_open(&lfs, &writer, "jello",
|
|
LFS_O_WRONLY
|
|
| ((FLUSH == 2) ? LFS_O_FLUSH : 0)
|
|
| ((SYNC == 2) ? LFS_O_SYNC : 0)) => 0;
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
lfsr_file_open(&lfs, &readers[r], "jello", LFS_O_RDONLY) => 0;
|
|
}
|
|
for (lfs_size_t i = 0; i < SIZE; i += CHUNK) {
|
|
uint8_t wbuf[CHUNK];
|
|
for (lfs_size_t j = 0; j < CHUNK; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &writer, wbuf, CHUNK) => CHUNK;
|
|
memcpy(&after[i], wbuf, CHUNK);
|
|
if (FLUSH == 1) {
|
|
lfsr_file_flush(&lfs, &writer) => 0;
|
|
}
|
|
if (SYNC == 1) {
|
|
lfsr_file_sync(&lfs, &writer) => 0;
|
|
}
|
|
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
uint8_t rbuf[CHUNK];
|
|
lfsr_file_read(&lfs, &readers[r], rbuf, CHUNK) => CHUNK;
|
|
if (SYNC == 0) {
|
|
assert(memcmp(rbuf, &before[i], CHUNK) == 0);
|
|
} else {
|
|
assert(memcmp(rbuf, &after[i], CHUNK) == 0);
|
|
}
|
|
}
|
|
}
|
|
lfsr_file_close(&lfs, &writer) => 0;
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
lfsr_file_close(&lfs, &readers[r]) => 0;
|
|
}
|
|
|
|
// check that file was written as expected
|
|
lfsr_file_open(&lfs, &file, "jello", LFS_O_RDONLY) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, after, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
[cases.test_fsync_wrrr_fuzz]
|
|
defines.R = 4
|
|
# 0 => no sync, readers not updated
|
|
# 1 => sync via lfsr_file_sync
|
|
# 2 => sync via LFS_O_SYNC
|
|
defines.SYNC = [0, 1, 2]
|
|
# 0 => no flush
|
|
# 1 => flush via lfsr_file_flush
|
|
# 2 => flush via LFS_O_FLUSH
|
|
defines.FLUSH = [0, 1, 2]
|
|
defines.SEED = 'range(10)'
|
|
defines.N = 20
|
|
defines.SIZE = [
|
|
'CACHE_SIZE/2',
|
|
'2*CACHE_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.CHUNK = '(SIZE+16-1) / 16'
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
// create a file
|
|
uint32_t prng = 42;
|
|
uint8_t before[SIZE];
|
|
for (lfs_size_t i = 0; i < SIZE; i++) {
|
|
before[i] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
uint8_t after[SIZE];
|
|
memcpy(after, before, SIZE);
|
|
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "jello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_write(&lfs, &file, before, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
// write 1 handle, read R handles in parallel
|
|
lfsr_file_t writer;
|
|
lfsr_file_t readers[R];
|
|
lfsr_file_open(&lfs, &writer, "jello",
|
|
LFS_O_WRONLY
|
|
| ((FLUSH == 2) ? LFS_O_FLUSH : 0)
|
|
| ((SYNC == 2) ? LFS_O_SYNC : 0)) => 0;
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
lfsr_file_open(&lfs, &readers[r], "jello", LFS_O_RDONLY) => 0;
|
|
}
|
|
for (lfs_size_t i = 0; i < N; i++) {
|
|
// choose a random offset
|
|
lfs_off_t off = TEST_PRNG(&prng) % SIZE;
|
|
lfs_size_t size = lfs_min32(CHUNK, SIZE - off);
|
|
lfsr_file_seek(&lfs, &writer, off, LFS_SEEK_SET) => off;
|
|
|
|
// write
|
|
uint8_t wbuf[CHUNK];
|
|
for (lfs_size_t j = 0; j < size; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &writer, wbuf, size) => size;
|
|
memcpy(&after[off], wbuf, size);
|
|
if (FLUSH == 1) {
|
|
lfsr_file_flush(&lfs, &writer) => 0;
|
|
}
|
|
if (SYNC == 1) {
|
|
lfsr_file_sync(&lfs, &writer) => 0;
|
|
}
|
|
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
// choose a random offset
|
|
lfs_off_t off = TEST_PRNG(&prng) % SIZE;
|
|
lfs_size_t size = lfs_min32(CHUNK, SIZE - off);
|
|
lfsr_file_seek(&lfs, &readers[r], off, LFS_SEEK_SET) => off;
|
|
|
|
// read
|
|
uint8_t rbuf[CHUNK];
|
|
lfsr_file_read(&lfs, &readers[r], rbuf, CHUNK) => size;
|
|
if (SYNC == 0) {
|
|
assert(memcmp(rbuf, &before[off], size) == 0);
|
|
} else {
|
|
assert(memcmp(rbuf, &after[off], size) == 0);
|
|
}
|
|
}
|
|
}
|
|
lfsr_file_close(&lfs, &writer) => 0;
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
lfsr_file_close(&lfs, &readers[r]) => 0;
|
|
}
|
|
|
|
// check that file was written as expected
|
|
lfsr_file_open(&lfs, &file, "jello", LFS_O_RDONLY) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, after, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
# Test multiple writers
|
|
[cases.test_fsync_wwww]
|
|
defines.W = 4
|
|
# 0 => no sync, readers not updated
|
|
# 1 => sync via lfsr_file_sync
|
|
# 2 => sync via LFS_O_SYNC
|
|
defines.SYNC = [0, 1, 2]
|
|
# 0 => no flush
|
|
# 1 => flush via lfsr_file_flush
|
|
# 2 => flush via LFS_O_FLUSH
|
|
defines.FLUSH = [0, 1, 2]
|
|
defines.SIZE = [
|
|
'CACHE_SIZE/2',
|
|
'2*CACHE_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.CHUNK = '(SIZE+16-1) / 16'
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
// create a file
|
|
uint32_t prng = 42;
|
|
uint8_t before[SIZE];
|
|
for (lfs_size_t i = 0; i < SIZE; i++) {
|
|
before[i] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
uint8_t after[SIZE];
|
|
memcpy(after, before, SIZE);
|
|
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "jello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_write(&lfs, &file, before, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
// write W handles in parallel
|
|
lfsr_file_t writers[W];
|
|
for (lfs_size_t w = 0; w < W; w++) {
|
|
lfsr_file_open(&lfs, &writers[w], "jello",
|
|
LFS_O_WRONLY
|
|
| ((FLUSH == 2) ? LFS_O_FLUSH : 0)
|
|
| ((SYNC == 2) ? LFS_O_SYNC : 0)) => 0;
|
|
}
|
|
for (lfs_size_t i = 0; i < SIZE; i += CHUNK) {
|
|
for (lfs_size_t w = 0; w < W; w++) {
|
|
uint8_t wbuf[CHUNK];
|
|
for (lfs_size_t j = 0; j < CHUNK; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &writers[w], wbuf, CHUNK) => CHUNK;
|
|
if (SYNC == 0) {
|
|
if (w == 0) {
|
|
memcpy(&after[i], wbuf, CHUNK);
|
|
}
|
|
} else {
|
|
if (FLUSH == 1) {
|
|
lfsr_file_flush(&lfs, &writers[w]) => 0;
|
|
}
|
|
if (SYNC == 1) {
|
|
lfsr_file_sync(&lfs, &writers[w]) => 0;
|
|
}
|
|
memcpy(&after[i], wbuf, CHUNK);
|
|
}
|
|
}
|
|
}
|
|
for (lfs_size_t w = 0; w < W; w++) {
|
|
lfsr_file_close(&lfs, &writers[w]) => 0;
|
|
}
|
|
|
|
// check that file was written as expected
|
|
lfsr_file_open(&lfs, &file, "jello", LFS_O_RDONLY) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, after, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
[cases.test_fsync_wwww_fuzz]
|
|
defines.W = 4
|
|
# 0 => no sync, readers not updated
|
|
# 1 => sync via lfsr_file_sync
|
|
# 2 => sync via LFS_O_SYNC
|
|
defines.SYNC = [0, 1, 2]
|
|
# 0 => no flush
|
|
# 1 => flush via lfsr_file_flush
|
|
# 2 => flush via LFS_O_FLUSH
|
|
defines.FLUSH = [0, 1, 2]
|
|
defines.SEED = 'range(10)'
|
|
defines.N = 20
|
|
defines.SIZE = [
|
|
'CACHE_SIZE/2',
|
|
'2*CACHE_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.CHUNK = '(SIZE+16-1) / 16'
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
// create a file
|
|
uint32_t prng = 42;
|
|
uint8_t before[SIZE];
|
|
for (lfs_size_t i = 0; i < SIZE; i++) {
|
|
before[i] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
uint8_t after[SIZE];
|
|
memcpy(after, before, SIZE);
|
|
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "jello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_write(&lfs, &file, before, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
// write W files in parallel
|
|
lfsr_file_t writers[W];
|
|
for (lfs_size_t w = 0; w < W; w++) {
|
|
lfsr_file_open(&lfs, &writers[w], "jello",
|
|
LFS_O_WRONLY
|
|
| ((FLUSH == 2) ? LFS_O_FLUSH : 0)
|
|
| ((SYNC == 2) ? LFS_O_SYNC : 0)) => 0;
|
|
}
|
|
for (lfs_size_t i = 0; i < SIZE; i += CHUNK) {
|
|
for (lfs_size_t w = 0; w < W; w++) {
|
|
// choose a random offset
|
|
lfs_off_t off = TEST_PRNG(&prng) % SIZE;
|
|
lfs_size_t size = lfs_min32(CHUNK, SIZE - off);
|
|
lfsr_file_seek(&lfs, &writers[w], off, LFS_SEEK_SET) => off;
|
|
|
|
// write
|
|
uint8_t wbuf[CHUNK];
|
|
for (lfs_size_t j = 0; j < size; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &writers[w], wbuf, size) => size;
|
|
if (SYNC == 0) {
|
|
if (w == 0) {
|
|
memcpy(&after[off], wbuf, size);
|
|
}
|
|
} else {
|
|
if (FLUSH == 1) {
|
|
lfsr_file_flush(&lfs, &writers[w]) => 0;
|
|
}
|
|
if (SYNC == 1) {
|
|
lfsr_file_sync(&lfs, &writers[w]) => 0;
|
|
}
|
|
memcpy(&after[off], wbuf, size);
|
|
}
|
|
}
|
|
}
|
|
for (lfs_size_t w = 0; w < W; w++) {
|
|
lfsr_file_close(&lfs, &writers[w]) => 0;
|
|
}
|
|
|
|
// check that file was written as expected
|
|
lfsr_file_open(&lfs, &file, "jello", LFS_O_RDONLY) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, after, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
# Test multiple writers and multiple readers
|
|
[cases.test_fsync_wwrr]
|
|
defines.W = 4
|
|
defines.R = 4
|
|
# 0 => no sync, readers not updated
|
|
# 1 => sync via lfsr_file_sync
|
|
# 2 => sync via LFS_O_SYNC
|
|
defines.SYNC = [0, 1, 2]
|
|
# 0 => no flush
|
|
# 1 => flush via lfsr_file_flush
|
|
# 2 => flush via LFS_O_FLUSH
|
|
defines.FLUSH = [0, 1, 2]
|
|
defines.SIZE = [
|
|
'CACHE_SIZE/2',
|
|
'2*CACHE_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.CHUNK = '(SIZE+16-1) / 16'
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
// create a file
|
|
uint32_t prng = 42;
|
|
uint8_t before[SIZE];
|
|
for (lfs_size_t i = 0; i < SIZE; i++) {
|
|
before[i] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
uint8_t after[SIZE];
|
|
memcpy(after, before, SIZE);
|
|
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "jello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_write(&lfs, &file, before, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
// write W handles, R handles in parallel
|
|
lfsr_file_t writers[W];
|
|
lfsr_file_t readers[R];
|
|
for (lfs_size_t w = 0; w < W; w++) {
|
|
lfsr_file_open(&lfs, &writers[w], "jello",
|
|
LFS_O_WRONLY
|
|
| ((FLUSH == 2) ? LFS_O_FLUSH : 0)
|
|
| ((SYNC == 2) ? LFS_O_SYNC : 0)) => 0;
|
|
}
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
lfsr_file_open(&lfs, &readers[r], "jello", LFS_O_RDONLY) => 0;
|
|
}
|
|
for (lfs_size_t i = 0; i < SIZE; i += CHUNK) {
|
|
for (lfs_size_t w = 0; w < W; w++) {
|
|
uint8_t wbuf[CHUNK];
|
|
for (lfs_size_t j = 0; j < CHUNK; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &writers[w], wbuf, CHUNK) => CHUNK;
|
|
if (SYNC == 0) {
|
|
if (w == 0) {
|
|
memcpy(&after[i], wbuf, CHUNK);
|
|
}
|
|
} else {
|
|
if (FLUSH == 1) {
|
|
lfsr_file_flush(&lfs, &writers[w]) => 0;
|
|
}
|
|
if (SYNC == 1) {
|
|
lfsr_file_sync(&lfs, &writers[w]) => 0;
|
|
}
|
|
memcpy(&after[i], wbuf, CHUNK);
|
|
}
|
|
}
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
uint8_t rbuf[CHUNK];
|
|
lfsr_file_read(&lfs, &readers[r], rbuf, CHUNK) => CHUNK;
|
|
if (SYNC == 0) {
|
|
assert(memcmp(rbuf, &before[i], CHUNK) == 0);
|
|
} else {
|
|
assert(memcmp(rbuf, &after[i], CHUNK) == 0);
|
|
}
|
|
}
|
|
}
|
|
for (lfs_size_t w = 0; w < W; w++) {
|
|
lfsr_file_close(&lfs, &writers[w]) => 0;
|
|
}
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
lfsr_file_close(&lfs, &readers[r]) => 0;
|
|
}
|
|
|
|
// check that file was written as expected
|
|
lfsr_file_open(&lfs, &file, "jello", LFS_O_RDONLY) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, after, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
[cases.test_fsync_wwrr_fuzz]
|
|
defines.W = 4
|
|
defines.R = 4
|
|
# 0 => no sync, readers not updated
|
|
# 1 => sync via lfsr_file_sync
|
|
# 2 => sync via LFS_O_SYNC
|
|
defines.SYNC = [0, 1, 2]
|
|
# 0 => no flush
|
|
# 1 => flush via lfsr_file_flush
|
|
# 2 => flush via LFS_O_FLUSH
|
|
defines.FLUSH = [0, 1, 2]
|
|
defines.SEED = 'range(10)'
|
|
defines.N = 20
|
|
defines.SIZE = [
|
|
'CACHE_SIZE/2',
|
|
'2*CACHE_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.CHUNK = '(SIZE+16-1) / 16'
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
// create a file
|
|
uint32_t prng = 42;
|
|
uint8_t before[SIZE];
|
|
for (lfs_size_t i = 0; i < SIZE; i++) {
|
|
before[i] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
uint8_t after[SIZE];
|
|
memcpy(after, before, SIZE);
|
|
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "jello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_write(&lfs, &file, before, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
// write W files in parallel
|
|
lfsr_file_t writers[W];
|
|
lfsr_file_t readers[R];
|
|
for (lfs_size_t w = 0; w < W; w++) {
|
|
lfsr_file_open(&lfs, &writers[w], "jello",
|
|
LFS_O_WRONLY
|
|
| ((FLUSH == 2) ? LFS_O_FLUSH : 0)
|
|
| ((SYNC == 2) ? LFS_O_SYNC : 0)) => 0;
|
|
}
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
lfsr_file_open(&lfs, &readers[r], "jello", LFS_O_RDONLY) => 0;
|
|
}
|
|
for (lfs_size_t i = 0; i < SIZE; i += CHUNK) {
|
|
for (lfs_size_t w = 0; w < W; w++) {
|
|
// choose a random offset
|
|
lfs_off_t off = TEST_PRNG(&prng) % SIZE;
|
|
lfs_size_t size = lfs_min32(CHUNK, SIZE - off);
|
|
lfsr_file_seek(&lfs, &writers[w], off, LFS_SEEK_SET) => off;
|
|
|
|
// write
|
|
uint8_t wbuf[CHUNK];
|
|
for (lfs_size_t j = 0; j < size; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &writers[w], wbuf, size) => size;
|
|
if (SYNC == 0) {
|
|
if (w == 0) {
|
|
memcpy(&after[off], wbuf, size);
|
|
}
|
|
} else {
|
|
if (FLUSH == 1) {
|
|
lfsr_file_flush(&lfs, &writers[w]) => 0;
|
|
}
|
|
if (SYNC == 1) {
|
|
lfsr_file_sync(&lfs, &writers[w]) => 0;
|
|
}
|
|
memcpy(&after[off], wbuf, size);
|
|
}
|
|
}
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
// choose a random offset
|
|
lfs_off_t off = TEST_PRNG(&prng) % SIZE;
|
|
lfs_size_t size = lfs_min32(CHUNK, SIZE - off);
|
|
lfsr_file_seek(&lfs, &readers[r], off, LFS_SEEK_SET) => off;
|
|
|
|
// read
|
|
uint8_t rbuf[CHUNK];
|
|
lfsr_file_read(&lfs, &readers[r], rbuf, CHUNK) => size;
|
|
if (SYNC == 0) {
|
|
assert(memcmp(rbuf, &before[off], size) == 0);
|
|
} else {
|
|
assert(memcmp(rbuf, &after[off], size) == 0);
|
|
}
|
|
}
|
|
}
|
|
for (lfs_size_t w = 0; w < W; w++) {
|
|
lfsr_file_close(&lfs, &writers[w]) => 0;
|
|
}
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
lfsr_file_close(&lfs, &readers[r]) => 0;
|
|
}
|
|
|
|
// check that file was written as expected
|
|
lfsr_file_open(&lfs, &file, "jello", LFS_O_RDONLY) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, after, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
# Test multiple rd/wrers
|
|
[cases.test_fsync_rwrw]
|
|
defines.RW = 4
|
|
# 0 => no sync, readers not updated
|
|
# 1 => sync via lfsr_file_sync
|
|
# 2 => sync via LFS_O_SYNC
|
|
defines.SYNC = [0, 1, 2]
|
|
# 0 => no flush
|
|
# 1 => flush via lfsr_file_flush
|
|
# 2 => flush via LFS_O_FLUSH
|
|
defines.FLUSH = [0, 1, 2]
|
|
defines.SIZE = [
|
|
'CACHE_SIZE/2',
|
|
'2*CACHE_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.CHUNK = '(SIZE+16-1) / 16'
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
// create a file
|
|
uint32_t prng = 42;
|
|
uint8_t before[SIZE];
|
|
for (lfs_size_t i = 0; i < SIZE; i++) {
|
|
before[i] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
uint8_t between[RW][SIZE];
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
memcpy(between[rw], before, SIZE);
|
|
}
|
|
uint8_t after[SIZE];
|
|
memcpy(after, before, SIZE);
|
|
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "jello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_write(&lfs, &file, before, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
// write RW rdwrs in parallel
|
|
lfsr_file_t rdwrs[RW];
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
lfsr_file_open(&lfs, &rdwrs[rw], "jello",
|
|
LFS_O_RDWR
|
|
| ((FLUSH == 2) ? LFS_O_FLUSH : 0)
|
|
| ((SYNC == 2) ? LFS_O_SYNC : 0)) => 0;
|
|
}
|
|
for (lfs_size_t i = 0; i < SIZE; i += CHUNK) {
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
uint8_t wbuf[CHUNK];
|
|
for (lfs_size_t j = 0; j < CHUNK; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
lfsr_file_seek(&lfs, &rdwrs[rw], i, LFS_SEEK_SET) => i;
|
|
lfsr_file_write(&lfs, &rdwrs[rw], wbuf, CHUNK) => CHUNK;
|
|
memcpy(&between[rw][i], wbuf, CHUNK);
|
|
if (SYNC == 0) {
|
|
if (rw == 0) {
|
|
memcpy(&after[i], wbuf, CHUNK);
|
|
}
|
|
} else {
|
|
if (FLUSH == 1) {
|
|
lfsr_file_flush(&lfs, &rdwrs[rw]) => 0;
|
|
}
|
|
if (SYNC == 1) {
|
|
lfsr_file_sync(&lfs, &rdwrs[rw]) => 0;
|
|
}
|
|
memcpy(&after[i], wbuf, CHUNK);
|
|
}
|
|
}
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
lfsr_file_seek(&lfs, &rdwrs[rw], i, LFS_SEEK_SET) => i;
|
|
uint8_t rbuf[CHUNK];
|
|
lfsr_file_read(&lfs, &rdwrs[rw], rbuf, CHUNK) => CHUNK;
|
|
if (SYNC == 0) {
|
|
assert(memcmp(rbuf, &between[rw][i], CHUNK) == 0);
|
|
} else {
|
|
assert(memcmp(rbuf, &after[i], CHUNK) == 0);
|
|
}
|
|
}
|
|
}
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
lfsr_file_close(&lfs, &rdwrs[rw]) => 0;
|
|
}
|
|
|
|
// check that file was written as expected
|
|
lfsr_file_open(&lfs, &file, "jello", LFS_O_RDONLY) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, after, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
[cases.test_fsync_rwrw_fuzz]
|
|
defines.RW = 4
|
|
# 0 => no sync, readers not updated
|
|
# 1 => sync via lfsr_file_sync
|
|
# 2 => sync via LFS_O_SYNC
|
|
defines.SYNC = [0, 1, 2]
|
|
# 0 => no flush
|
|
# 1 => flush via lfsr_file_flush
|
|
# 2 => flush via LFS_O_FLUSH
|
|
defines.FLUSH = [0, 1, 2]
|
|
defines.SEED = 'range(10)'
|
|
defines.N = 20
|
|
defines.SIZE = [
|
|
'CACHE_SIZE/2',
|
|
'2*CACHE_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.CHUNK = '(SIZE+16-1) / 16'
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
// create a file
|
|
uint32_t prng = 42;
|
|
uint8_t before[SIZE];
|
|
for (lfs_size_t i = 0; i < SIZE; i++) {
|
|
before[i] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
uint8_t between[RW][SIZE];
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
memcpy(between[rw], before, SIZE);
|
|
}
|
|
uint8_t after[SIZE];
|
|
memcpy(after, before, SIZE);
|
|
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "jello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_write(&lfs, &file, before, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
// write RW rdwrs in parallel
|
|
lfsr_file_t rdwrs[RW];
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
lfsr_file_open(&lfs, &rdwrs[rw], "jello",
|
|
LFS_O_RDWR
|
|
| ((FLUSH == 2) ? LFS_O_FLUSH : 0)
|
|
| ((SYNC == 2) ? LFS_O_SYNC : 0)) => 0;
|
|
}
|
|
for (lfs_size_t i = 0; i < SIZE; i += CHUNK) {
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
// choose a random offset
|
|
lfs_off_t off = TEST_PRNG(&prng) % SIZE;
|
|
lfs_size_t size = lfs_min32(CHUNK, SIZE - off);
|
|
lfsr_file_seek(&lfs, &rdwrs[rw], off, LFS_SEEK_SET) => off;
|
|
|
|
// write
|
|
uint8_t wbuf[CHUNK];
|
|
for (lfs_size_t j = 0; j < size; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &rdwrs[rw], wbuf, size) => size;
|
|
memcpy(&between[rw][off], wbuf, size);
|
|
if (SYNC == 0) {
|
|
if (rw == 0) {
|
|
memcpy(&after[off], wbuf, size);
|
|
}
|
|
} else {
|
|
if (FLUSH == 1) {
|
|
lfsr_file_flush(&lfs, &rdwrs[rw]) => 0;
|
|
}
|
|
if (SYNC == 1) {
|
|
lfsr_file_sync(&lfs, &rdwrs[rw]) => 0;
|
|
}
|
|
memcpy(&after[off], wbuf, size);
|
|
}
|
|
}
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
// choose a random offset
|
|
lfs_off_t off = TEST_PRNG(&prng) % SIZE;
|
|
lfs_size_t size = lfs_min32(CHUNK, SIZE - off);
|
|
lfsr_file_seek(&lfs, &rdwrs[rw], off, LFS_SEEK_SET) => off;
|
|
|
|
// read
|
|
uint8_t rbuf[CHUNK];
|
|
lfsr_file_read(&lfs, &rdwrs[rw], rbuf, CHUNK) => size;
|
|
if (SYNC == 0) {
|
|
assert(memcmp(rbuf, &between[rw][off], size) == 0);
|
|
} else {
|
|
assert(memcmp(rbuf, &after[off], size) == 0);
|
|
}
|
|
}
|
|
}
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
lfsr_file_close(&lfs, &rdwrs[rw]) => 0;
|
|
}
|
|
|
|
// check that file was written as expected
|
|
lfsr_file_open(&lfs, &file, "jello", LFS_O_RDONLY) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, after, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
# Test multiple rw files without fixed size
|
|
[cases.test_fsync_rwrw_sparse_fuzz]
|
|
defines.RW = 4
|
|
# 0 => no sync, readers not updated
|
|
# 1 => sync via lfsr_file_sync
|
|
# 2 => sync via LFS_O_SYNC
|
|
defines.SYNC = [0, 1, 2]
|
|
# 0 => no flush
|
|
# 1 => flush via lfsr_file_flush
|
|
# 2 => flush via LFS_O_FLUSH
|
|
defines.FLUSH = [0, 1, 2]
|
|
defines.SEED = 'range(10)'
|
|
defines.N = 40
|
|
defines.SIZE = [
|
|
'CACHE_SIZE/2',
|
|
'2*CACHE_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.CHUNK = '(SIZE+16-1) / 16'
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
uint32_t prng = 42;
|
|
uint8_t between[RW][SIZE];
|
|
lfs_size_t between_size[RW];
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
between_size[rw] = 0;
|
|
}
|
|
uint8_t after[SIZE];
|
|
lfs_size_t after_size = 0;
|
|
|
|
// write RW rdwrs in parallel
|
|
lfsr_file_t rdwrs[RW];
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
// open files
|
|
lfsr_file_open(&lfs, &rdwrs[rw], "jello",
|
|
LFS_O_RDWR
|
|
| LFS_O_CREAT
|
|
| ((FLUSH == 2) ? LFS_O_FLUSH : 0)
|
|
| ((SYNC == 2) ? LFS_O_SYNC : 0)) => 0;
|
|
}
|
|
for (lfs_size_t i = 0; i < SIZE; i += CHUNK) {
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
// choose a random operation
|
|
uint8_t op = TEST_PRNG(&prng) % 2;
|
|
|
|
// writing?
|
|
if (op == 0) {
|
|
// choose a random offset
|
|
lfs_off_t off = (between_size[rw] > 0)
|
|
? TEST_PRNG(&prng) % between_size[rw]
|
|
: 0;
|
|
lfs_size_t size = lfs_min32(CHUNK, SIZE - off);
|
|
uint8_t wbuf[CHUNK];
|
|
for (lfs_size_t j = 0; j < size; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
|
|
// write
|
|
lfsr_file_seek(&lfs, &rdwrs[rw], off, LFS_SEEK_SET) => off;
|
|
lfsr_file_write(&lfs, &rdwrs[rw], wbuf, size) => size;
|
|
if (FLUSH == 1) {
|
|
lfsr_file_flush(&lfs, &rdwrs[rw]) => 0;
|
|
}
|
|
if (SYNC == 1) {
|
|
lfsr_file_sync(&lfs, &rdwrs[rw]) => 0;
|
|
}
|
|
|
|
// update sim
|
|
if (off > between_size[rw]) {
|
|
memset(&between[rw][between_size[rw]],
|
|
0,
|
|
off - between_size[rw]);
|
|
}
|
|
memcpy(&between[rw][off], wbuf, size);
|
|
between_size[rw] = lfs_max32(off + size, between_size[rw]);
|
|
|
|
// reading?
|
|
} else if (op == 1) {
|
|
// choose a random offset
|
|
lfs_off_t off = (between_size[rw] > 0)
|
|
? TEST_PRNG(&prng) % between_size[rw]
|
|
: 0;
|
|
lfs_size_t size = lfs_min32(CHUNK, between_size[rw] - off);
|
|
|
|
// read
|
|
lfsr_file_seek(&lfs, &rdwrs[rw], off, LFS_SEEK_SET) => off;
|
|
uint8_t rbuf[CHUNK];
|
|
lfsr_file_read(&lfs, &rdwrs[rw], rbuf, CHUNK) => size;
|
|
assert(memcmp(rbuf, &between[rw][off], size) == 0);
|
|
}
|
|
|
|
// broadcast sim?
|
|
if (SYNC) {
|
|
memcpy(after, between[rw], SIZE);
|
|
after_size = between_size[rw];
|
|
|
|
for (lfs_size_t rw_ = 0; rw_ < RW; rw_++) {
|
|
memcpy(between[rw_], between[rw], SIZE);
|
|
between_size[rw_] = between_size[rw];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
// close files
|
|
lfsr_file_close(&lfs, &rdwrs[rw]) => 0;
|
|
|
|
// broadcast sim one last time?
|
|
memcpy(after, between[rw], SIZE);
|
|
after_size = between_size[rw];
|
|
|
|
for (lfs_size_t rw_ = 0; rw_ < RW; rw_++) {
|
|
memcpy(between[rw_], between[rw], SIZE);
|
|
between_size[rw_] = between_size[rw];
|
|
}
|
|
}
|
|
|
|
// check that file was written as expected
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "jello", LFS_O_RDONLY) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => after_size;
|
|
assert(memcmp(rbuf, after, after_size) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
# Test multiple rw files while also truncating/fruncating
|
|
[cases.test_fsync_rwtfrwtf_sparse_fuzz]
|
|
defines.RW = 4
|
|
# 0 => no sync, readers not updated
|
|
# 1 => sync via lfsr_file_sync
|
|
# 2 => sync via LFS_O_SYNC
|
|
defines.SYNC = [0, 1, 2]
|
|
# 0 => no flush
|
|
# 1 => flush via lfsr_file_flush
|
|
# 2 => flush via LFS_O_FLUSH
|
|
defines.FLUSH = [0, 1, 2]
|
|
defines.SEED = 'range(10)'
|
|
defines.N = 40
|
|
defines.SIZE = [
|
|
'CACHE_SIZE/2',
|
|
'2*CACHE_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.CHUNK = '(SIZE+16-1) / 16'
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
uint32_t prng = 42;
|
|
uint8_t between[RW][SIZE];
|
|
lfs_size_t between_size[RW];
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
between_size[rw] = 0;
|
|
}
|
|
uint8_t after[SIZE];
|
|
lfs_size_t after_size = 0;
|
|
|
|
// write RW rdwrs in parallel
|
|
lfsr_file_t rdwrs[RW];
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
// open files
|
|
lfsr_file_open(&lfs, &rdwrs[rw], "jello",
|
|
LFS_O_RDWR
|
|
| LFS_O_CREAT
|
|
| ((FLUSH == 2) ? LFS_O_FLUSH : 0)
|
|
| ((SYNC == 2) ? LFS_O_SYNC : 0)) => 0;
|
|
}
|
|
for (lfs_size_t i = 0; i < SIZE; i += CHUNK) {
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
// choose a random operation
|
|
uint8_t op = TEST_PRNG(&prng) % 4;
|
|
|
|
// writing?
|
|
if (op == 0) {
|
|
// choose a random offset
|
|
lfs_off_t off = (between_size[rw] > 0)
|
|
? TEST_PRNG(&prng) % between_size[rw]
|
|
: 0;
|
|
lfs_size_t size = lfs_min32(CHUNK, SIZE - off);
|
|
uint8_t wbuf[CHUNK];
|
|
for (lfs_size_t j = 0; j < size; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
|
|
// write
|
|
lfsr_file_seek(&lfs, &rdwrs[rw], off, LFS_SEEK_SET) => off;
|
|
lfsr_file_write(&lfs, &rdwrs[rw], wbuf, size) => size;
|
|
if (FLUSH == 1) {
|
|
lfsr_file_flush(&lfs, &rdwrs[rw]) => 0;
|
|
}
|
|
if (SYNC == 1) {
|
|
lfsr_file_sync(&lfs, &rdwrs[rw]) => 0;
|
|
}
|
|
|
|
// update sim
|
|
if (off > between_size[rw]) {
|
|
memset(&between[rw][between_size[rw]],
|
|
0,
|
|
off - between_size[rw]);
|
|
}
|
|
memcpy(&between[rw][off], wbuf, size);
|
|
between_size[rw] = lfs_max32(off + size, between_size[rw]);
|
|
|
|
// reading?
|
|
} else if (op == 1) {
|
|
// choose a random offset
|
|
lfs_off_t off = (between_size[rw] > 0)
|
|
? TEST_PRNG(&prng) % between_size[rw]
|
|
: 0;
|
|
lfs_size_t size = lfs_min32(CHUNK, between_size[rw] - off);
|
|
|
|
// read
|
|
lfsr_file_seek(&lfs, &rdwrs[rw], off, LFS_SEEK_SET) => off;
|
|
uint8_t rbuf[CHUNK];
|
|
lfsr_file_read(&lfs, &rdwrs[rw], rbuf, CHUNK) => size;
|
|
assert(memcmp(rbuf, &between[rw][off], size) == 0);
|
|
|
|
// truncating?
|
|
} else if (op == 2) {
|
|
// choose a random new file size
|
|
lfs_off_t size = TEST_PRNG(&prng) % SIZE;
|
|
|
|
// truncate
|
|
lfsr_file_truncate(&lfs, &rdwrs[rw], size) => 0;
|
|
if (FLUSH == 1) { // (flush does nothing)
|
|
lfsr_file_flush(&lfs, &rdwrs[rw]) => 0;
|
|
}
|
|
if (SYNC == 1) {
|
|
lfsr_file_sync(&lfs, &rdwrs[rw]) => 0;
|
|
}
|
|
|
|
// update the sim
|
|
if (size > between_size[rw]) {
|
|
memset(&between[rw][between_size[rw]],
|
|
0,
|
|
size - between_size[rw]);
|
|
}
|
|
between_size[rw] = size;
|
|
|
|
// fruncating?
|
|
} else if (op == 3) {
|
|
// choose a random new file size
|
|
lfs_off_t size = TEST_PRNG(&prng) % SIZE;
|
|
|
|
// fruncate
|
|
lfsr_file_fruncate(&lfs, &rdwrs[rw], size) => 0;
|
|
if (FLUSH == 1) { // (flush does nothing)
|
|
lfsr_file_flush(&lfs, &rdwrs[rw]) => 0;
|
|
}
|
|
if (SYNC == 1) {
|
|
lfsr_file_sync(&lfs, &rdwrs[rw]) => 0;
|
|
}
|
|
|
|
// update the sim
|
|
if (size > between_size[rw]) {
|
|
memmove(&between[rw][size - between_size[rw]],
|
|
between[rw],
|
|
between_size[rw]);
|
|
memset(between[rw],
|
|
0,
|
|
size - between_size[rw]);
|
|
} else {
|
|
memmove(between[rw],
|
|
&between[rw][between_size[rw] - size],
|
|
size);
|
|
}
|
|
between_size[rw] = size;
|
|
}
|
|
|
|
// broadcast sim?
|
|
if (SYNC) {
|
|
memcpy(after, between[rw], SIZE);
|
|
after_size = between_size[rw];
|
|
|
|
for (lfs_size_t rw_ = 0; rw_ < RW; rw_++) {
|
|
memcpy(between[rw_], between[rw], SIZE);
|
|
between_size[rw_] = between_size[rw];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
// close files
|
|
lfsr_file_close(&lfs, &rdwrs[rw]) => 0;
|
|
|
|
// broadcast sim one last time?
|
|
memcpy(after, between[rw], SIZE);
|
|
after_size = between_size[rw];
|
|
|
|
for (lfs_size_t rw_ = 0; rw_ < RW; rw_++) {
|
|
memcpy(between[rw_], between[rw], SIZE);
|
|
between_size[rw_] = between_size[rw];
|
|
}
|
|
}
|
|
|
|
// check that file was written as expected
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "jello", LFS_O_RDONLY) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => after_size;
|
|
assert(memcmp(rbuf, after, after_size) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
|
|
# Desynced files make things interesting
|
|
|
|
# Some specific tests
|
|
[cases.test_fsync_desync_wdrr]
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
// a - writer
|
|
// b - reader kept open, recvs updates from a
|
|
// c - reader kept closed, checks disk state
|
|
lfsr_file_t a;
|
|
lfsr_file_t b;
|
|
lfsr_file_t c;
|
|
uint8_t rbuf[256];
|
|
lfsr_file_open(&lfs, &a, "jello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_open(&lfs, &b, "jello", LFS_O_RDONLY) => 0;
|
|
|
|
// write to a and sync
|
|
lfsr_file_write(&lfs, &a, "hello!", strlen("hello!"))
|
|
=> strlen("hello!");
|
|
lfsr_file_sync(&lfs, &a) => 0;
|
|
|
|
// our write should show up in b
|
|
lfsr_file_read(&lfs, &b, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &c, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
lfsr_file_close(&lfs, &c) => 0;
|
|
|
|
// now mark as desync, rewrite, and close
|
|
lfsr_file_desync(&lfs, &a) => 0;
|
|
lfsr_file_rewind(&lfs, &a) => 0;
|
|
lfsr_file_write(&lfs, &a, "bonjour!", strlen("bonjour!"))
|
|
=> strlen("bonjour!");
|
|
lfsr_file_close(&lfs, &a) => 0;
|
|
|
|
// b should still have previous contents
|
|
lfsr_file_rewind(&lfs, &b) => 0;
|
|
lfsr_file_read(&lfs, &b, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &c, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
lfsr_file_close(&lfs, &c) => 0;
|
|
|
|
// reopen a, mark as desync, rewrite a, and sync
|
|
lfsr_file_open(&lfs, &a, "jello", LFS_O_WRONLY) => 0;
|
|
lfsr_file_desync(&lfs, &a) => 0;
|
|
lfsr_file_write(&lfs, &a, "ohayo!", strlen("ohayo!"))
|
|
=> strlen("ohayo!");
|
|
// this sync should clear the desync
|
|
lfsr_file_sync(&lfs, &a) => 0;
|
|
|
|
// now our write should show up in b
|
|
lfsr_file_rewind(&lfs, &b) => 0;
|
|
lfsr_file_read(&lfs, &b, rbuf, sizeof(rbuf)) => strlen("ohayo!");
|
|
assert(memcmp(rbuf, "ohayo!", strlen("ohayo!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &c, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("ohayo!");
|
|
assert(memcmp(rbuf, "ohayo!", strlen("ohayo!")) == 0);
|
|
lfsr_file_close(&lfs, &c) => 0;
|
|
|
|
// rewrite a, close, desync flag should have been cleared
|
|
lfsr_file_rewind(&lfs, &a) => 0;
|
|
lfsr_file_write(&lfs, &a, "zdrasti!", strlen("zdrasti!"))
|
|
=> strlen("zdrasti!");
|
|
lfsr_file_close(&lfs, &a) => 0;
|
|
|
|
// our write should show up in b
|
|
lfsr_file_rewind(&lfs, &b) => 0;
|
|
lfsr_file_read(&lfs, &b, rbuf, sizeof(rbuf)) => strlen("zdrasti!");
|
|
assert(memcmp(rbuf, "zdrasti!", strlen("zdrasti!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &c, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("zdrasti!");
|
|
assert(memcmp(rbuf, "zdrasti!", strlen("zdrasti!")) == 0);
|
|
lfsr_file_close(&lfs, &c) => 0;
|
|
|
|
lfsr_file_close(&lfs, &b) => 0;
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
[cases.test_fsync_desync_wrrd]
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
// a - writer
|
|
// b - reader kept open, recvs updates from a
|
|
// c - desynced reader
|
|
lfsr_file_t a;
|
|
lfsr_file_t b;
|
|
lfsr_file_t c;
|
|
uint8_t rbuf[256];
|
|
lfsr_file_open(&lfs, &a, "jello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_open(&lfs, &b, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_open(&lfs, &c, "jello", LFS_O_RDONLY | LFS_O_DESYNC) => 0;
|
|
|
|
// write to a and sync
|
|
lfsr_file_write(&lfs, &a, "hello!", strlen("hello!"))
|
|
=> strlen("hello!");
|
|
lfsr_file_sync(&lfs, &a) => 0;
|
|
|
|
// our write should show up in b
|
|
lfsr_file_read(&lfs, &b, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
// but not in c
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => 0;
|
|
// reopen c, should now be up to date
|
|
lfsr_file_close(&lfs, &c) => 0;
|
|
lfsr_file_open(&lfs, &c, "jello", LFS_O_RDONLY | LFS_O_DESYNC) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
|
|
// rewrite and sync
|
|
lfsr_file_rewind(&lfs, &a) => 0;
|
|
lfsr_file_write(&lfs, &a, "bonjour!", strlen("bonjour!"))
|
|
=> strlen("bonjour!");
|
|
lfsr_file_sync(&lfs, &a) => 0;
|
|
|
|
// our write should show up in b
|
|
lfsr_file_rewind(&lfs, &b) => 0;
|
|
lfsr_file_read(&lfs, &b, rbuf, sizeof(rbuf)) => strlen("bonjour!");
|
|
assert(memcmp(rbuf, "bonjour!", strlen("bonjour!")) == 0);
|
|
// but not in c
|
|
lfsr_file_rewind(&lfs, &c) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
// reopen c, should now be up to date
|
|
lfsr_file_close(&lfs, &c) => 0;
|
|
lfsr_file_open(&lfs, &c, "jello", LFS_O_RDONLY | LFS_O_DESYNC) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("bonjour!");
|
|
assert(memcmp(rbuf, "bonjour!", strlen("bonjour!")) == 0);
|
|
|
|
// rewrite and close
|
|
lfsr_file_rewind(&lfs, &a) => 0;
|
|
lfsr_file_write(&lfs, &a, "ohayo!", strlen("ohayo!"))
|
|
=> strlen("ohayo!");
|
|
lfsr_file_close(&lfs, &a) => 0;
|
|
|
|
// our write should show up in b
|
|
lfsr_file_rewind(&lfs, &b) => 0;
|
|
lfsr_file_read(&lfs, &b, rbuf, sizeof(rbuf)) => strlen("ohayo!r!");
|
|
assert(memcmp(rbuf, "ohayo!r!", strlen("ohayo!r!")) == 0);
|
|
// but not in c
|
|
lfsr_file_rewind(&lfs, &c) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("bonjour!");
|
|
assert(memcmp(rbuf, "bonjour!", strlen("bonjour!")) == 0);
|
|
// reopen c, should now be up to date
|
|
lfsr_file_close(&lfs, &c) => 0;
|
|
lfsr_file_open(&lfs, &c, "jello", LFS_O_RDONLY | LFS_O_DESYNC) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("ohayo!r!");
|
|
assert(memcmp(rbuf, "ohayo!r!", strlen("ohayo!r!")) == 0);
|
|
|
|
lfsr_file_close(&lfs, &b) => 0;
|
|
lfsr_file_close(&lfs, &c) => 0;
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
[cases.test_fsync_desync_wdwdrr]
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
// a - writer
|
|
// b - writer
|
|
// c - reader kept open, recvs updates from a
|
|
// d - reader kept closed, checks disk state
|
|
lfsr_file_t a;
|
|
lfsr_file_t b;
|
|
lfsr_file_t c;
|
|
lfsr_file_t d;
|
|
uint8_t rbuf[256];
|
|
lfsr_file_open(&lfs, &a, "jello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_open(&lfs, &b, "jello", LFS_O_WRONLY) => 0;
|
|
lfsr_file_open(&lfs, &c, "jello", LFS_O_RDONLY) => 0;
|
|
|
|
// write to a and sync
|
|
lfsr_file_write(&lfs, &a, "hello!", strlen("hello!"))
|
|
=> strlen("hello!");
|
|
lfsr_file_sync(&lfs, &a) => 0;
|
|
|
|
// our write should show up in c
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
// mark b as desync, rewrite, and close
|
|
lfsr_file_desync(&lfs, &b) => 0;
|
|
lfsr_file_write(&lfs, &b, "bonjour!", strlen("bonjour!"))
|
|
=> strlen("bonjour!");
|
|
lfsr_file_close(&lfs, &b) => 0;
|
|
|
|
// c should still have previous contents
|
|
lfsr_file_rewind(&lfs, &c) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
// reopen b, mark as desync, rewrite
|
|
lfsr_file_open(&lfs, &b, "jello", LFS_O_WRONLY) => 0;
|
|
lfsr_file_desync(&lfs, &b) => 0;
|
|
lfsr_file_write(&lfs, &b, "ohayo!", strlen("ohayo!"))
|
|
=> strlen("ohayo!");
|
|
// rewrite a, sync
|
|
lfsr_file_rewind(&lfs, &a) => 0;
|
|
lfsr_file_write(&lfs, &a, "zdrasti!", strlen("zdrasti!"))
|
|
=> strlen("zdrasti!");
|
|
lfsr_file_sync(&lfs, &a) => 0;
|
|
|
|
// a should show up in c
|
|
lfsr_file_rewind(&lfs, &c) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("zdrasti!");
|
|
assert(memcmp(rbuf, "zdrasti!", strlen("zdrasti!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("zdrasti!");
|
|
assert(memcmp(rbuf, "zdrasti!", strlen("zdrasti!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
// sync b
|
|
lfsr_file_sync(&lfs, &b) => 0;
|
|
|
|
// b should show up in c, without a's changes
|
|
lfsr_file_rewind(&lfs, &c) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("ohayo!");
|
|
assert(memcmp(rbuf, "ohayo!", strlen("ohayo!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("ohayo!");
|
|
assert(memcmp(rbuf, "ohayo!", strlen("ohayo!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
// rewrite b, close, desync flag should have been cleared
|
|
lfsr_file_rewind(&lfs, &b) => 0;
|
|
lfsr_file_write(&lfs, &b, "annyeong!", strlen("annyeong!"))
|
|
=> strlen("annyeong!");
|
|
lfsr_file_close(&lfs, &b) => 0;
|
|
|
|
// our write should show up in c
|
|
lfsr_file_rewind(&lfs, &c) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("annyeong!");
|
|
assert(memcmp(rbuf, "annyeong!", strlen("annyeong!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("annyeong!");
|
|
assert(memcmp(rbuf, "annyeong!", strlen("annyeong!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
// rewrite a, close
|
|
lfsr_file_rewind(&lfs, &a) => 0;
|
|
lfsr_file_write(&lfs, &a, "czesc!", strlen("czesc!"))
|
|
=> strlen("czesc!");
|
|
lfsr_file_close(&lfs, &a) => 0;
|
|
|
|
// our write should show up in c
|
|
lfsr_file_rewind(&lfs, &c) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("czesc!ng!");
|
|
assert(memcmp(rbuf, "czesc!ng!", strlen("czesc!ng!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("czesc!ng!");
|
|
assert(memcmp(rbuf, "czesc!ng!", strlen("czesc!ng!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
lfsr_file_close(&lfs, &c) => 0;
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
[cases.test_fsync_desync_wdwdrr_noop]
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
// a - writer
|
|
// b - writer
|
|
// c - reader kept open, recvs updates from a
|
|
// d - reader kept closed, checks disk state
|
|
lfsr_file_t a;
|
|
lfsr_file_t b;
|
|
lfsr_file_t c;
|
|
lfsr_file_t d;
|
|
uint8_t rbuf[256];
|
|
lfsr_file_open(&lfs, &a, "jello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_open(&lfs, &b, "jello", LFS_O_WRONLY) => 0;
|
|
lfsr_file_open(&lfs, &c, "jello", LFS_O_RDONLY) => 0;
|
|
|
|
// write to a and sync
|
|
lfsr_file_write(&lfs, &a, "hello!", strlen("hello!"))
|
|
=> strlen("hello!");
|
|
lfsr_file_sync(&lfs, &a) => 0;
|
|
|
|
// our write should show up in c
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
// mark b as desync, this should freeze its contents
|
|
lfsr_file_desync(&lfs, &b) => 0;
|
|
// rewrite a, sync
|
|
lfsr_file_rewind(&lfs, &a) => 0;
|
|
lfsr_file_write(&lfs, &a, "bonjour!", strlen("bonjour!"))
|
|
=> strlen("bonjour!");
|
|
lfsr_file_sync(&lfs, &a) => 0;
|
|
|
|
// a should show up in c
|
|
lfsr_file_rewind(&lfs, &c) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("bonjour!");
|
|
assert(memcmp(rbuf, "bonjour!", strlen("bonjour!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("bonjour!");
|
|
assert(memcmp(rbuf, "bonjour!", strlen("bonjour!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
// sync b, this may be tricky since we haven't touched b
|
|
lfsr_file_sync(&lfs, &b) => 0;
|
|
|
|
// b should show up in c, without a's changes
|
|
lfsr_file_rewind(&lfs, &c) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
// rewrite b, close, desync flag should have been cleared
|
|
lfsr_file_rewind(&lfs, &b) => 0;
|
|
lfsr_file_write(&lfs, &b, "ohayo!", strlen("ohayo!"))
|
|
=> strlen("ohayo!");
|
|
lfsr_file_close(&lfs, &b) => 0;
|
|
|
|
// our write should show up in c
|
|
lfsr_file_rewind(&lfs, &c) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("ohayo!");
|
|
assert(memcmp(rbuf, "ohayo!", strlen("ohayo!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("ohayo!");
|
|
assert(memcmp(rbuf, "ohayo!", strlen("ohayo!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
// rewrite a, close
|
|
lfsr_file_rewind(&lfs, &a) => 0;
|
|
lfsr_file_write(&lfs, &a, "zdrasti!", strlen("zdrasti!"))
|
|
=> strlen("zdrasti!");
|
|
lfsr_file_close(&lfs, &a) => 0;
|
|
|
|
// our write should show up in c
|
|
lfsr_file_rewind(&lfs, &c) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("zdrasti!");
|
|
assert(memcmp(rbuf, "zdrasti!", strlen("zdrasti!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("zdrasti!");
|
|
assert(memcmp(rbuf, "zdrasti!", strlen("zdrasti!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
lfsr_file_close(&lfs, &c) => 0;
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
[cases.test_fsync_desync_wdwdrr_append]
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
// a - writer
|
|
// b - writer
|
|
// c - reader kept open, recvs updates from a
|
|
// d - reader kept closed, checks disk state
|
|
lfsr_file_t a;
|
|
lfsr_file_t b;
|
|
lfsr_file_t c;
|
|
lfsr_file_t d;
|
|
uint8_t rbuf[256];
|
|
lfsr_file_open(&lfs, &a, "jello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL | LFS_O_APPEND) => 0;
|
|
lfsr_file_open(&lfs, &b, "jello", LFS_O_WRONLY | LFS_O_APPEND) => 0;
|
|
lfsr_file_open(&lfs, &c, "jello", LFS_O_RDONLY) => 0;
|
|
|
|
// write to a and sync
|
|
lfsr_file_write(&lfs, &a, "hello!", strlen("hello!"))
|
|
=> strlen("hello!");
|
|
lfsr_file_sync(&lfs, &a) => 0;
|
|
|
|
// our write should show up in c
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
// mark b as desync, write, and close
|
|
lfsr_file_desync(&lfs, &b) => 0;
|
|
lfsr_file_write(&lfs, &b, "bonjour!", strlen("bonjour!"))
|
|
=> strlen("bonjour!");
|
|
lfsr_file_close(&lfs, &b) => 0;
|
|
|
|
// c should still have previous contents
|
|
lfsr_file_rewind(&lfs, &c) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("hello!");
|
|
assert(memcmp(rbuf, "hello!", strlen("hello!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
// reopen b, mark as desync, write
|
|
lfsr_file_open(&lfs, &b, "jello", LFS_O_WRONLY | LFS_O_APPEND) => 0;
|
|
lfsr_file_desync(&lfs, &b) => 0;
|
|
lfsr_file_write(&lfs, &b, "ohayo!", strlen("ohayo!"))
|
|
=> strlen("ohayo!");
|
|
// write a, sync
|
|
lfsr_file_write(&lfs, &a, "zdrasti!", strlen("zdrasti!"))
|
|
=> strlen("zdrasti!");
|
|
lfsr_file_sync(&lfs, &a) => 0;
|
|
|
|
// a should show up in c
|
|
lfsr_file_rewind(&lfs, &c) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!zdrasti!");
|
|
assert(memcmp(rbuf, "hello!zdrasti!", strlen("hello!zdrasti!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("hello!zdrasti!");
|
|
assert(memcmp(rbuf, "hello!zdrasti!", strlen("hello!zdrasti!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
// sync b
|
|
lfsr_file_sync(&lfs, &b) => 0;
|
|
|
|
// b should show up in c, without a's changes
|
|
lfsr_file_rewind(&lfs, &c) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf)) => strlen("hello!ohayo!");
|
|
assert(memcmp(rbuf, "hello!ohayo!", strlen("hello!ohayo!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf)) => strlen("hello!ohayo!");
|
|
assert(memcmp(rbuf, "hello!ohayo!", strlen("hello!ohayo!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
// write b, close, desync flag should have been cleared
|
|
lfsr_file_write(&lfs, &b, "annyeong!", strlen("annyeong!"))
|
|
=> strlen("annyeong!");
|
|
lfsr_file_close(&lfs, &b) => 0;
|
|
|
|
// our write should show up in c
|
|
lfsr_file_rewind(&lfs, &c) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf))
|
|
=> strlen("hello!ohayo!annyeong!");
|
|
assert(memcmp(rbuf, "hello!ohayo!annyeong!",
|
|
strlen("hello!ohayo!annyeong!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf))
|
|
=> strlen("hello!ohayo!annyeong!");
|
|
assert(memcmp(rbuf, "hello!ohayo!annyeong!",
|
|
strlen("hello!ohayo!annyeong!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
// write a, close
|
|
lfsr_file_write(&lfs, &a, "czesc!", strlen("czesc!"))
|
|
=> strlen("czesc!");
|
|
lfsr_file_close(&lfs, &a) => 0;
|
|
|
|
// our write should show up in c
|
|
lfsr_file_rewind(&lfs, &c) => 0;
|
|
lfsr_file_read(&lfs, &c, rbuf, sizeof(rbuf))
|
|
=> strlen("hello!ohayo!annyeong!czesc!");
|
|
assert(memcmp(rbuf, "hello!ohayo!annyeong!czesc!",
|
|
strlen("hello!ohayo!annyeong!czesc!")) == 0);
|
|
// and on disk
|
|
lfsr_file_open(&lfs, &d, "jello", LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &d, rbuf, sizeof(rbuf))
|
|
=> strlen("hello!ohayo!annyeong!czesc!");
|
|
assert(memcmp(rbuf, "hello!ohayo!annyeong!czesc!",
|
|
strlen("hello!ohayo!annyeong!czesc!")) == 0);
|
|
lfsr_file_close(&lfs, &d) => 0;
|
|
|
|
lfsr_file_close(&lfs, &c) => 0;
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
|
|
# Test one desynced writer, multiple readers
|
|
[cases.test_fsync_drrr]
|
|
defines.R = 4
|
|
# 0 => no sync, readers not updated
|
|
# 1 => sync via lfsr_file_sync
|
|
# 2 => sync via LFS_O_SYNC
|
|
defines.SYNC = [0, 1, 2]
|
|
# 0 => no flush
|
|
# 1 => flush via lfsr_file_flush
|
|
# 2 => flush via LFS_O_FLUSH
|
|
defines.FLUSH = [0, 1, 2]
|
|
defines.SIZE = [
|
|
'CACHE_SIZE/2',
|
|
'2*CACHE_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.CHUNK = '(SIZE+16-1) / 16'
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
// create a file
|
|
uint32_t prng = 42;
|
|
uint8_t before[SIZE];
|
|
for (lfs_size_t i = 0; i < SIZE; i++) {
|
|
before[i] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
uint8_t after[SIZE];
|
|
memcpy(after, before, SIZE);
|
|
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "jello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_write(&lfs, &file, before, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
// write 1 handle, read R handles in parallel
|
|
lfsr_file_t writer;
|
|
lfsr_file_t readers[R];
|
|
lfsr_file_open(&lfs, &writer, "jello",
|
|
LFS_O_WRONLY
|
|
| LFS_O_DESYNC
|
|
| ((FLUSH == 2) ? LFS_O_FLUSH : 0)
|
|
| ((SYNC == 2) ? LFS_O_SYNC : 0)) => 0;
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
lfsr_file_open(&lfs, &readers[r], "jello", LFS_O_RDONLY) => 0;
|
|
}
|
|
for (lfs_size_t i = 0; i < SIZE; i += CHUNK) {
|
|
uint8_t wbuf[CHUNK];
|
|
for (lfs_size_t j = 0; j < CHUNK; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &writer, wbuf, CHUNK) => CHUNK;
|
|
memcpy(&after[i], wbuf, CHUNK);
|
|
if (FLUSH == 1) {
|
|
lfsr_file_flush(&lfs, &writer) => 0;
|
|
}
|
|
if (SYNC == 1) {
|
|
lfsr_file_sync(&lfs, &writer) => 0;
|
|
}
|
|
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
uint8_t rbuf[CHUNK];
|
|
lfsr_file_read(&lfs, &readers[r], rbuf, CHUNK) => CHUNK;
|
|
if (SYNC == 0) {
|
|
assert(memcmp(rbuf, &before[i], CHUNK) == 0);
|
|
} else {
|
|
assert(memcmp(rbuf, &after[i], CHUNK) == 0);
|
|
}
|
|
}
|
|
}
|
|
lfsr_file_close(&lfs, &writer) => 0;
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
lfsr_file_close(&lfs, &readers[r]) => 0;
|
|
}
|
|
|
|
// check that file was written as expected
|
|
lfsr_file_open(&lfs, &file, "jello", LFS_O_RDONLY) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
if (SYNC == 0) {
|
|
assert(memcmp(rbuf, before, SIZE) == 0);
|
|
} else {
|
|
assert(memcmp(rbuf, after, SIZE) == 0);
|
|
}
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
[cases.test_fsync_drrr_fuzz]
|
|
defines.R = 4
|
|
# 0 => no sync, readers not updated
|
|
# 1 => sync via lfsr_file_sync
|
|
# 2 => sync via LFS_O_SYNC
|
|
defines.SYNC = [0, 1, 2]
|
|
# 0 => no flush
|
|
# 1 => flush via lfsr_file_flush
|
|
# 2 => flush via LFS_O_FLUSH
|
|
defines.FLUSH = [0, 1, 2]
|
|
defines.SEED = 'range(10)'
|
|
defines.N = 20
|
|
defines.SIZE = [
|
|
'CACHE_SIZE/2',
|
|
'2*CACHE_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.CHUNK = '(SIZE+16-1) / 16'
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
// create a file
|
|
uint32_t prng = 42;
|
|
uint8_t before[SIZE];
|
|
for (lfs_size_t i = 0; i < SIZE; i++) {
|
|
before[i] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
uint8_t after[SIZE];
|
|
memcpy(after, before, SIZE);
|
|
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "jello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_write(&lfs, &file, before, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
// write 1 handle, read R handles in parallel
|
|
lfsr_file_t writer;
|
|
lfsr_file_t readers[R];
|
|
lfsr_file_open(&lfs, &writer, "jello",
|
|
LFS_O_WRONLY
|
|
| LFS_O_DESYNC
|
|
| ((FLUSH == 2) ? LFS_O_FLUSH : 0)
|
|
| ((SYNC == 2) ? LFS_O_SYNC : 0)) => 0;
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
lfsr_file_open(&lfs, &readers[r], "jello", LFS_O_RDONLY) => 0;
|
|
}
|
|
for (lfs_size_t i = 0; i < N; i++) {
|
|
// choose a random offset
|
|
lfs_off_t off = TEST_PRNG(&prng) % SIZE;
|
|
lfs_size_t size = lfs_min32(CHUNK, SIZE - off);
|
|
lfsr_file_seek(&lfs, &writer, off, LFS_SEEK_SET) => off;
|
|
|
|
// write
|
|
uint8_t wbuf[CHUNK];
|
|
for (lfs_size_t j = 0; j < size; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &writer, wbuf, size) => size;
|
|
memcpy(&after[off], wbuf, size);
|
|
if (FLUSH == 1) {
|
|
lfsr_file_flush(&lfs, &writer) => 0;
|
|
}
|
|
if (SYNC == 1) {
|
|
lfsr_file_sync(&lfs, &writer) => 0;
|
|
}
|
|
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
// choose a random offset
|
|
lfs_off_t off = TEST_PRNG(&prng) % SIZE;
|
|
lfs_size_t size = lfs_min32(CHUNK, SIZE - off);
|
|
lfsr_file_seek(&lfs, &readers[r], off, LFS_SEEK_SET) => off;
|
|
|
|
// read
|
|
uint8_t rbuf[CHUNK];
|
|
lfsr_file_read(&lfs, &readers[r], rbuf, CHUNK) => size;
|
|
if (SYNC == 0) {
|
|
assert(memcmp(rbuf, &before[off], size) == 0);
|
|
} else {
|
|
assert(memcmp(rbuf, &after[off], size) == 0);
|
|
}
|
|
}
|
|
}
|
|
lfsr_file_close(&lfs, &writer) => 0;
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
lfsr_file_close(&lfs, &readers[r]) => 0;
|
|
}
|
|
|
|
// check that file was written as expected
|
|
lfsr_file_open(&lfs, &file, "jello", LFS_O_RDONLY) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
if (SYNC == 0) {
|
|
assert(memcmp(rbuf, before, SIZE) == 0);
|
|
} else {
|
|
assert(memcmp(rbuf, after, SIZE) == 0);
|
|
}
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
# Test one writer, multiple desynced readers
|
|
[cases.test_fsync_wddd]
|
|
defines.R = 4
|
|
# 0 => no sync, readers not updated
|
|
# 1 => sync via lfsr_file_sync
|
|
# 2 => sync via LFS_O_SYNC
|
|
defines.SYNC = [0, 1, 2]
|
|
# 0 => no flush
|
|
# 1 => flush via lfsr_file_flush
|
|
# 2 => flush via LFS_O_FLUSH
|
|
defines.FLUSH = [0, 1, 2]
|
|
defines.SIZE = [
|
|
'CACHE_SIZE/2',
|
|
'2*CACHE_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.CHUNK = '(SIZE+16-1) / 16'
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
// create a file
|
|
uint32_t prng = 42;
|
|
uint8_t before[SIZE];
|
|
for (lfs_size_t i = 0; i < SIZE; i++) {
|
|
before[i] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
uint8_t after[SIZE];
|
|
memcpy(after, before, SIZE);
|
|
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "jello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_write(&lfs, &file, before, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
// write 1 handle, read R handles in parallel
|
|
lfsr_file_t writer;
|
|
lfsr_file_t readers[R];
|
|
lfsr_file_open(&lfs, &writer, "jello",
|
|
LFS_O_WRONLY
|
|
| ((FLUSH == 2) ? LFS_O_FLUSH : 0)
|
|
| ((SYNC == 2) ? LFS_O_SYNC : 0)) => 0;
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
lfsr_file_open(&lfs, &readers[r], "jello",
|
|
LFS_O_RDONLY | LFS_O_DESYNC) => 0;
|
|
}
|
|
for (lfs_size_t i = 0; i < SIZE; i += CHUNK) {
|
|
uint8_t wbuf[CHUNK];
|
|
for (lfs_size_t j = 0; j < CHUNK; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &writer, wbuf, CHUNK) => CHUNK;
|
|
memcpy(&after[i], wbuf, CHUNK);
|
|
if (FLUSH == 1) {
|
|
lfsr_file_flush(&lfs, &writer) => 0;
|
|
}
|
|
if (SYNC == 1) {
|
|
lfsr_file_sync(&lfs, &writer) => 0;
|
|
}
|
|
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
uint8_t rbuf[CHUNK];
|
|
lfsr_file_read(&lfs, &readers[r], rbuf, CHUNK) => CHUNK;
|
|
assert(memcmp(rbuf, &before[i], CHUNK) == 0);
|
|
}
|
|
}
|
|
lfsr_file_close(&lfs, &writer) => 0;
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
lfsr_file_close(&lfs, &readers[r]) => 0;
|
|
}
|
|
|
|
// check that file was written as expected
|
|
lfsr_file_open(&lfs, &file, "jello", LFS_O_RDONLY) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, after, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
[cases.test_fsync_wddd_fuzz]
|
|
defines.R = 4
|
|
# 0 => no sync, readers not updated
|
|
# 1 => sync via lfsr_file_sync
|
|
# 2 => sync via LFS_O_SYNC
|
|
defines.SYNC = [0, 1, 2]
|
|
# 0 => no flush
|
|
# 1 => flush via lfsr_file_flush
|
|
# 2 => flush via LFS_O_FLUSH
|
|
defines.FLUSH = [0, 1, 2]
|
|
defines.SEED = 'range(10)'
|
|
defines.N = 20
|
|
defines.SIZE = [
|
|
'CACHE_SIZE/2',
|
|
'2*CACHE_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.CHUNK = '(SIZE+16-1) / 16'
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
// create a file
|
|
uint32_t prng = 42;
|
|
uint8_t before[SIZE];
|
|
for (lfs_size_t i = 0; i < SIZE; i++) {
|
|
before[i] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
uint8_t after[SIZE];
|
|
memcpy(after, before, SIZE);
|
|
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "jello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_write(&lfs, &file, before, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
// write 1 handle, read R handles in parallel
|
|
lfsr_file_t writer;
|
|
lfsr_file_t readers[R];
|
|
lfsr_file_open(&lfs, &writer, "jello",
|
|
LFS_O_WRONLY
|
|
| ((FLUSH == 2) ? LFS_O_FLUSH : 0)
|
|
| ((SYNC == 2) ? LFS_O_SYNC : 0)) => 0;
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
lfsr_file_open(&lfs, &readers[r], "jello",
|
|
LFS_O_RDONLY | LFS_O_DESYNC) => 0;
|
|
}
|
|
for (lfs_size_t i = 0; i < N; i++) {
|
|
// choose a random offset
|
|
lfs_off_t off = TEST_PRNG(&prng) % SIZE;
|
|
lfs_size_t size = lfs_min32(CHUNK, SIZE - off);
|
|
lfsr_file_seek(&lfs, &writer, off, LFS_SEEK_SET) => off;
|
|
|
|
// write
|
|
uint8_t wbuf[CHUNK];
|
|
for (lfs_size_t j = 0; j < size; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &writer, wbuf, size) => size;
|
|
memcpy(&after[off], wbuf, size);
|
|
if (FLUSH == 1) {
|
|
lfsr_file_flush(&lfs, &writer) => 0;
|
|
}
|
|
if (SYNC == 1) {
|
|
lfsr_file_sync(&lfs, &writer) => 0;
|
|
}
|
|
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
// choose a random offset
|
|
lfs_off_t off = TEST_PRNG(&prng) % SIZE;
|
|
lfs_size_t size = lfs_min32(CHUNK, SIZE - off);
|
|
lfsr_file_seek(&lfs, &readers[r], off, LFS_SEEK_SET) => off;
|
|
|
|
// read
|
|
uint8_t rbuf[CHUNK];
|
|
lfsr_file_read(&lfs, &readers[r], rbuf, CHUNK) => size;
|
|
assert(memcmp(rbuf, &before[off], size) == 0);
|
|
}
|
|
}
|
|
lfsr_file_close(&lfs, &writer) => 0;
|
|
for (lfs_size_t r = 0; r < R; r++) {
|
|
lfsr_file_close(&lfs, &readers[r]) => 0;
|
|
}
|
|
|
|
// check that file was written as expected
|
|
lfsr_file_open(&lfs, &file, "jello", LFS_O_RDONLY) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, after, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
# Test multiple desynced rd/wrers
|
|
[cases.test_fsync_rwdrwd]
|
|
defines.RW = 4
|
|
# 0 => no sync, readers not updated
|
|
# 1 => sync via lfsr_file_sync
|
|
# 2 => sync via LFS_O_SYNC
|
|
defines.SYNC = [0, 1, 2]
|
|
# 0 => no flush
|
|
# 1 => flush via lfsr_file_flush
|
|
# 2 => flush via LFS_O_FLUSH
|
|
defines.FLUSH = [0, 1, 2]
|
|
defines.SIZE = [
|
|
'CACHE_SIZE/2',
|
|
'2*CACHE_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.CHUNK = '(SIZE+16-1) / 16'
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
// create a file
|
|
uint32_t prng = 42;
|
|
uint8_t before[SIZE];
|
|
for (lfs_size_t i = 0; i < SIZE; i++) {
|
|
before[i] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
uint8_t between[RW][SIZE];
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
memcpy(between[rw], before, SIZE);
|
|
}
|
|
uint8_t after[SIZE];
|
|
memcpy(after, before, SIZE);
|
|
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "jello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_write(&lfs, &file, before, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
// write RW rdwrs in parallel
|
|
lfsr_file_t rdwrs[RW];
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
lfsr_file_open(&lfs, &rdwrs[rw], "jello",
|
|
LFS_O_RDWR
|
|
| LFS_O_DESYNC
|
|
| ((FLUSH == 2) ? LFS_O_FLUSH : 0)
|
|
| ((SYNC == 2) ? LFS_O_SYNC : 0)) => 0;
|
|
}
|
|
for (lfs_size_t i = 0; i < SIZE; i += CHUNK) {
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
uint8_t wbuf[CHUNK];
|
|
for (lfs_size_t j = 0; j < CHUNK; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
lfsr_file_seek(&lfs, &rdwrs[rw], i, LFS_SEEK_SET) => i;
|
|
lfsr_file_write(&lfs, &rdwrs[rw], wbuf, CHUNK) => CHUNK;
|
|
memcpy(&between[rw][i], wbuf, CHUNK);
|
|
if (SYNC == 0) {
|
|
if (rw == 0) {
|
|
memcpy(&after[i], wbuf, CHUNK);
|
|
}
|
|
} else {
|
|
if (FLUSH == 1) {
|
|
lfsr_file_flush(&lfs, &rdwrs[rw]) => 0;
|
|
}
|
|
if (SYNC == 1) {
|
|
lfsr_file_sync(&lfs, &rdwrs[rw]) => 0;
|
|
}
|
|
if (i == 0) {
|
|
memcpy(after, between[rw], SIZE);
|
|
} else {
|
|
memcpy(&after[i], wbuf, CHUNK);
|
|
}
|
|
}
|
|
}
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
lfsr_file_seek(&lfs, &rdwrs[rw], i, LFS_SEEK_SET) => i;
|
|
uint8_t rbuf[CHUNK];
|
|
lfsr_file_read(&lfs, &rdwrs[rw], rbuf, CHUNK) => CHUNK;
|
|
if (SYNC == 0) {
|
|
assert(memcmp(rbuf, &between[rw][i], CHUNK) == 0);
|
|
} else {
|
|
assert(memcmp(rbuf, &after[i], CHUNK) == 0);
|
|
}
|
|
}
|
|
}
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
lfsr_file_close(&lfs, &rdwrs[rw]) => 0;
|
|
}
|
|
|
|
// check that file was written as expected
|
|
lfsr_file_open(&lfs, &file, "jello", LFS_O_RDONLY) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
if (SYNC == 0) {
|
|
assert(memcmp(rbuf, before, SIZE) == 0);
|
|
} else {
|
|
assert(memcmp(rbuf, after, SIZE) == 0);
|
|
}
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
[cases.test_fsync_rwdrwd_fuzz]
|
|
defines.RW = 4
|
|
# 0 => no sync, readers not updated
|
|
# 1 => sync via lfsr_file_sync
|
|
# 2 => sync via LFS_O_SYNC
|
|
defines.SYNC = [0, 1, 2]
|
|
# 0 => no flush
|
|
# 1 => flush via lfsr_file_flush
|
|
# 2 => flush via LFS_O_FLUSH
|
|
defines.FLUSH = [0, 1, 2]
|
|
defines.SEED = 'range(10)'
|
|
defines.N = 20
|
|
defines.SIZE = [
|
|
'CACHE_SIZE/2',
|
|
'2*CACHE_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.CHUNK = '(SIZE+16-1) / 16'
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
// create a file
|
|
uint32_t prng = 42;
|
|
uint8_t before[SIZE];
|
|
for (lfs_size_t i = 0; i < SIZE; i++) {
|
|
before[i] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
uint8_t between[RW][SIZE];
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
memcpy(between[rw], before, SIZE);
|
|
}
|
|
uint8_t after[SIZE];
|
|
memcpy(after, before, SIZE);
|
|
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "jello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_write(&lfs, &file, before, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
// write RW rdwrs in parallel
|
|
lfsr_file_t rdwrs[RW];
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
lfsr_file_open(&lfs, &rdwrs[rw], "jello",
|
|
LFS_O_RDWR
|
|
| LFS_O_DESYNC
|
|
| ((FLUSH == 2) ? LFS_O_FLUSH : 0)
|
|
| ((SYNC == 2) ? LFS_O_SYNC : 0)) => 0;
|
|
}
|
|
for (lfs_size_t i = 0; i < SIZE; i += CHUNK) {
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
// choose a random offset
|
|
lfs_off_t off = TEST_PRNG(&prng) % SIZE;
|
|
lfs_size_t size = lfs_min32(CHUNK, SIZE - off);
|
|
lfsr_file_seek(&lfs, &rdwrs[rw], off, LFS_SEEK_SET) => off;
|
|
|
|
// write
|
|
uint8_t wbuf[CHUNK];
|
|
for (lfs_size_t j = 0; j < size; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &rdwrs[rw], wbuf, size) => size;
|
|
memcpy(&between[rw][off], wbuf, size);
|
|
if (SYNC == 0) {
|
|
if (rw == 0) {
|
|
memcpy(&after[off], wbuf, size);
|
|
}
|
|
} else {
|
|
if (FLUSH == 1) {
|
|
lfsr_file_flush(&lfs, &rdwrs[rw]) => 0;
|
|
}
|
|
if (SYNC == 1) {
|
|
lfsr_file_sync(&lfs, &rdwrs[rw]) => 0;
|
|
}
|
|
if (i == 0) {
|
|
memcpy(after, between[rw], SIZE);
|
|
} else {
|
|
memcpy(&after[off], wbuf, size);
|
|
}
|
|
}
|
|
}
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
// choose a random offset
|
|
lfs_off_t off = TEST_PRNG(&prng) % SIZE;
|
|
lfs_size_t size = lfs_min32(CHUNK, SIZE - off);
|
|
lfsr_file_seek(&lfs, &rdwrs[rw], off, LFS_SEEK_SET) => off;
|
|
|
|
// read
|
|
uint8_t rbuf[CHUNK];
|
|
lfsr_file_read(&lfs, &rdwrs[rw], rbuf, CHUNK) => size;
|
|
if (SYNC == 0) {
|
|
assert(memcmp(rbuf, &between[rw][off], size) == 0);
|
|
} else {
|
|
assert(memcmp(rbuf, &after[off], size) == 0);
|
|
}
|
|
}
|
|
}
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
lfsr_file_close(&lfs, &rdwrs[rw]) => 0;
|
|
}
|
|
|
|
// check that file was written as expected
|
|
lfsr_file_open(&lfs, &file, "jello", LFS_O_RDONLY) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
if (SYNC == 0) {
|
|
assert(memcmp(rbuf, before, SIZE) == 0);
|
|
} else {
|
|
assert(memcmp(rbuf, after, SIZE) == 0);
|
|
}
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
# Test multiple rwd files without fixed size
|
|
[cases.test_fsync_rwdrwd_sparse_fuzz]
|
|
defines.RW = 4
|
|
# 0 => no flush
|
|
# 1 => flush via lfsr_file_flush
|
|
# 2 => flush via LFS_O_FLUSH
|
|
defines.FLUSH = [0, 1, 2]
|
|
defines.SEED = 'range(10)'
|
|
defines.N = 40
|
|
defines.SIZE = [
|
|
'CACHE_SIZE/2',
|
|
'2*CACHE_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.CHUNK = '(SIZE+16-1) / 16'
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
uint32_t prng = 42;
|
|
uint8_t between[RW][SIZE];
|
|
lfs_size_t between_size[RW];
|
|
bool between_desync[RW];
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
between_size[rw] = 0;
|
|
between_desync[rw] = false;
|
|
}
|
|
uint8_t after[SIZE];
|
|
lfs_size_t after_size = 0;
|
|
|
|
// write RW rdwrs in parallel
|
|
lfsr_file_t rdwrs[RW];
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
// open files
|
|
lfsr_file_open(&lfs, &rdwrs[rw], "jello",
|
|
LFS_O_RDWR
|
|
| LFS_O_CREAT
|
|
| ((FLUSH == 2) ? LFS_O_FLUSH : 0)) => 0;
|
|
}
|
|
for (lfs_size_t i = 0; i < SIZE; i += CHUNK) {
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
// choose a random operation
|
|
uint8_t op = TEST_PRNG(&prng) % 2;
|
|
// choose a random sync state
|
|
uint8_t sync = TEST_PRNG(&prng) % 3;
|
|
|
|
// writing?
|
|
if (op == 0) {
|
|
// choose a random offset
|
|
lfs_off_t off = (between_size[rw] > 0)
|
|
? TEST_PRNG(&prng) % between_size[rw]
|
|
: 0;
|
|
lfs_size_t size = lfs_min32(CHUNK, SIZE - off);
|
|
uint8_t wbuf[CHUNK];
|
|
for (lfs_size_t j = 0; j < size; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
|
|
// write
|
|
lfsr_file_seek(&lfs, &rdwrs[rw], off, LFS_SEEK_SET) => off;
|
|
lfsr_file_write(&lfs, &rdwrs[rw], wbuf, size) => size;
|
|
if (FLUSH == 1) {
|
|
lfsr_file_flush(&lfs, &rdwrs[rw]) => 0;
|
|
}
|
|
|
|
// update sim
|
|
if (off > between_size[rw]) {
|
|
memset(&between[rw][between_size[rw]],
|
|
0,
|
|
off - between_size[rw]);
|
|
}
|
|
memcpy(&between[rw][off], wbuf, size);
|
|
between_size[rw] = lfs_max32(off + size, between_size[rw]);
|
|
|
|
// reading?
|
|
} else if (op == 1) {
|
|
// choose a random offset
|
|
lfs_off_t off = (between_size[rw] > 0)
|
|
? TEST_PRNG(&prng) % between_size[rw]
|
|
: 0;
|
|
lfs_size_t size = lfs_min32(CHUNK, between_size[rw] - off);
|
|
|
|
// read
|
|
lfsr_file_seek(&lfs, &rdwrs[rw], off, LFS_SEEK_SET) => off;
|
|
uint8_t rbuf[CHUNK];
|
|
lfsr_file_read(&lfs, &rdwrs[rw], rbuf, CHUNK) => size;
|
|
assert(memcmp(rbuf, &between[rw][off], size) == 0);
|
|
}
|
|
|
|
// desync?
|
|
if (sync == 0) {
|
|
lfsr_file_desync(&lfs, &rdwrs[rw]) => 0;
|
|
between_desync[rw] = true;
|
|
|
|
// sync?
|
|
} else if (sync == 1) {
|
|
lfsr_file_sync(&lfs, &rdwrs[rw]) => 0;
|
|
between_desync[rw] = false;
|
|
|
|
// otherwise no change
|
|
}
|
|
|
|
// broadcast sim?
|
|
if (sync == 1) {
|
|
memcpy(after, between[rw], SIZE);
|
|
after_size = between_size[rw];
|
|
|
|
for (lfs_size_t rw_ = 0; rw_ < RW; rw_++) {
|
|
if (!between_desync[rw_]) {
|
|
memcpy(between[rw_], between[rw], SIZE);
|
|
between_size[rw_] = between_size[rw];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
// close files
|
|
lfsr_file_close(&lfs, &rdwrs[rw]) => 0;
|
|
|
|
// broadcast sim one last time?
|
|
if (!between_desync[rw]) {
|
|
memcpy(after, between[rw], SIZE);
|
|
after_size = between_size[rw];
|
|
|
|
for (lfs_size_t rw_ = 0; rw_ < RW; rw_++) {
|
|
if (!between_desync[rw_]) {
|
|
memcpy(between[rw_], between[rw], SIZE);
|
|
between_size[rw_] = between_size[rw];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// check that file was written as expected
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "jello", LFS_O_RDONLY) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => after_size;
|
|
assert(memcmp(rbuf, after, after_size) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
# Test multiple rwd files while also truncating/fruncating
|
|
[cases.test_fsync_rwtfdrwtfd_sparse_fuzz]
|
|
defines.RW = 4
|
|
# 0 => no flush
|
|
# 1 => flush via lfsr_file_flush
|
|
# 2 => flush via LFS_O_FLUSH
|
|
defines.FLUSH = [0, 1, 2]
|
|
defines.SEED = 'range(10)'
|
|
defines.N = 40
|
|
defines.SIZE = [
|
|
'CACHE_SIZE/2',
|
|
'2*CACHE_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.CHUNK = '(SIZE+16-1) / 16'
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
|
|
uint32_t prng = 42;
|
|
uint8_t between[RW][SIZE];
|
|
lfs_size_t between_size[RW];
|
|
bool between_desync[RW];
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
between_size[rw] = 0;
|
|
between_desync[rw] = false;
|
|
}
|
|
uint8_t after[SIZE];
|
|
lfs_size_t after_size = 0;
|
|
|
|
// write RW rdwrs in parallel
|
|
lfsr_file_t rdwrs[RW];
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
// open files
|
|
lfsr_file_open(&lfs, &rdwrs[rw], "jello",
|
|
LFS_O_RDWR
|
|
| LFS_O_CREAT
|
|
| ((FLUSH == 2) ? LFS_O_FLUSH : 0)) => 0;
|
|
}
|
|
for (lfs_size_t i = 0; i < SIZE; i += CHUNK) {
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
// choose a random operation
|
|
uint8_t op = TEST_PRNG(&prng) % 4;
|
|
// choose a random sync state
|
|
uint8_t sync = TEST_PRNG(&prng) % 3;
|
|
|
|
// writing?
|
|
if (op == 0) {
|
|
// choose a random offset
|
|
lfs_off_t off = (between_size[rw] > 0)
|
|
? TEST_PRNG(&prng) % between_size[rw]
|
|
: 0;
|
|
lfs_size_t size = lfs_min32(CHUNK, SIZE - off);
|
|
uint8_t wbuf[CHUNK];
|
|
for (lfs_size_t j = 0; j < size; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
|
|
// write
|
|
lfsr_file_seek(&lfs, &rdwrs[rw], off, LFS_SEEK_SET) => off;
|
|
lfsr_file_write(&lfs, &rdwrs[rw], wbuf, size) => size;
|
|
if (FLUSH == 1) {
|
|
lfsr_file_flush(&lfs, &rdwrs[rw]) => 0;
|
|
}
|
|
|
|
// update sim
|
|
if (off > between_size[rw]) {
|
|
memset(&between[rw][between_size[rw]],
|
|
0,
|
|
off - between_size[rw]);
|
|
}
|
|
memcpy(&between[rw][off], wbuf, size);
|
|
between_size[rw] = lfs_max32(off + size, between_size[rw]);
|
|
|
|
// reading?
|
|
} else if (op == 1) {
|
|
// choose a random offset
|
|
lfs_off_t off = (between_size[rw] > 0)
|
|
? TEST_PRNG(&prng) % between_size[rw]
|
|
: 0;
|
|
lfs_size_t size = lfs_min32(CHUNK, between_size[rw] - off);
|
|
|
|
// read
|
|
lfsr_file_seek(&lfs, &rdwrs[rw], off, LFS_SEEK_SET) => off;
|
|
uint8_t rbuf[CHUNK];
|
|
lfsr_file_read(&lfs, &rdwrs[rw], rbuf, CHUNK) => size;
|
|
assert(memcmp(rbuf, &between[rw][off], size) == 0);
|
|
|
|
// truncating?
|
|
} else if (op == 2) {
|
|
// choose a random new file size
|
|
lfs_off_t size = TEST_PRNG(&prng) % SIZE;
|
|
|
|
// truncate
|
|
lfsr_file_truncate(&lfs, &rdwrs[rw], size) => 0;
|
|
|
|
// update the sim
|
|
if (size > between_size[rw]) {
|
|
memset(&between[rw][between_size[rw]],
|
|
0,
|
|
size - between_size[rw]);
|
|
}
|
|
between_size[rw] = size;
|
|
|
|
// fruncating?
|
|
} else if (op == 3) {
|
|
// choose a random new file size
|
|
lfs_off_t size = TEST_PRNG(&prng) % SIZE;
|
|
|
|
// fruncate
|
|
lfsr_file_fruncate(&lfs, &rdwrs[rw], size) => 0;
|
|
|
|
// update the sim
|
|
if (size > between_size[rw]) {
|
|
memmove(&between[rw][size - between_size[rw]],
|
|
between[rw],
|
|
between_size[rw]);
|
|
memset(between[rw],
|
|
0,
|
|
size - between_size[rw]);
|
|
} else {
|
|
memmove(between[rw],
|
|
&between[rw][between_size[rw] - size],
|
|
size);
|
|
}
|
|
between_size[rw] = size;
|
|
}
|
|
|
|
// desync?
|
|
if (sync == 0) {
|
|
lfsr_file_desync(&lfs, &rdwrs[rw]) => 0;
|
|
between_desync[rw] = true;
|
|
|
|
// sync?
|
|
} else if (sync == 1) {
|
|
lfsr_file_sync(&lfs, &rdwrs[rw]) => 0;
|
|
between_desync[rw] = false;
|
|
|
|
// otherwise no change
|
|
}
|
|
|
|
// broadcast sim?
|
|
if (sync == 1) {
|
|
memcpy(after, between[rw], SIZE);
|
|
after_size = between_size[rw];
|
|
|
|
for (lfs_size_t rw_ = 0; rw_ < RW; rw_++) {
|
|
if (!between_desync[rw_]) {
|
|
memcpy(between[rw_], between[rw], SIZE);
|
|
between_size[rw_] = between_size[rw];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
for (lfs_size_t rw = 0; rw < RW; rw++) {
|
|
// close files
|
|
lfsr_file_close(&lfs, &rdwrs[rw]) => 0;
|
|
|
|
// broadcast sim one last time?
|
|
if (!between_desync[rw]) {
|
|
memcpy(after, between[rw], SIZE);
|
|
after_size = between_size[rw];
|
|
|
|
for (lfs_size_t rw_ = 0; rw_ < RW; rw_++) {
|
|
if (!between_desync[rw_]) {
|
|
memcpy(between[rw_], between[rw], SIZE);
|
|
between_size[rw_] = between_size[rw];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// check that file was written as expected
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "jello", LFS_O_RDONLY) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => after_size;
|
|
assert(memcmp(rbuf, after, after_size) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|