Christopher Haster
2f38822820
And by working, I mean you can create inlined trees, just don't compact/split/move/etc anything. But this does outline the path files take when writing buffers into inlined trees. "Inlined trees" in littlefs are entire small rbyd trees embedded as secondary trees in an mdir's main rbyd tree. When fetching, we can indicate if a given trunk belongs to the main tree or secondary tree by setting one of the unused mode bits in the trunk's tag, now called the "deferred" bit. This bit doesn't need to be included in the alt's "key" field, so there's no issue with it conflicting with the alt's mode bits. This requires a bit of tweaking lfsr_rbyd_fetch, since it needs to fall back to the previous trunk if it discovers the most recent trunk belongs to an inlined tree. But as a benefit we can leverage the full power of rbyds in inlined files, including holes, partial updates, etc. One downside is it looks like these inlined trees may involve more work in maintining their state correctly, since they need to be sort of "brought along" when mdirs are compacted, even if they don't actually have a reference in the mdir yet. But the sheer amount of flexibility this gives inlined files may make this overhead worth it.
1035 lines
32 KiB
TOML
1035 lines
32 KiB
TOML
# Test basic file operations
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after = ['test_dtree']
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# test creation/deletion
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[cases.test_ftree_create]
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defines.REMOUNT = [false, true]
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reentrant = true
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code = '''
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// format once per test
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lfs_t lfs;
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int err = lfsr_mount(&lfs, CFG);
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if (err) {
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lfsr_format(&lfs, CFG) => 0;
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lfsr_mount(&lfs, CFG) => 0;
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}
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// create a file
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lfsr_file_t file;
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lfsr_file_open(&lfs, &file, "hello", LFS_O_WRONLY | LFS_O_CREAT) => 0;
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lfsr_file_close(&lfs, &file) => 0;
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// remount?
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if (REMOUNT) {
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lfsr_unmount(&lfs) => 0;
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lfsr_mount(&lfs, CFG) => 0;
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}
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// check our file with stat
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struct lfs_info info;
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lfsr_stat(&lfs, "hello", &info) => 0;
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assert(strcmp(info.name, "hello") == 0);
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assert(info.type == LFS_TYPE_REG);
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assert(info.size == 0);
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// and with dir read
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lfsr_dir_t dir;
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lfsr_dir_open(&lfs, &dir, "/") => 0;
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, ".") == 0);
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assert(info.type == LFS_TYPE_DIR);
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, "..") == 0);
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assert(info.type == LFS_TYPE_DIR);
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, "hello") == 0);
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assert(info.type == LFS_TYPE_REG);
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assert(info.size == 0);
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lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
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lfsr_dir_close(&lfs, &dir) => 0;
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// try reading our file
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lfsr_file_open(&lfs, &file, "hello", LFS_O_RDONLY) => 0;
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// is size correct?
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lfsr_file_size(&lfs, &file) => 0;
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// try reading
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uint8_t buf[8192];
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lfsr_file_read(&lfs, &file, buf, sizeof(buf)) => 0;
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lfsr_file_close(&lfs, &file) => 0;
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lfsr_unmount(&lfs) => 0;
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'''
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# test we can write some data, should be inlined
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[cases.test_ftree_hello]
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defines.REMOUNT = [false, true]
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reentrant = true
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code = '''
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// format once per test
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lfs_t lfs;
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int err = lfsr_mount(&lfs, CFG);
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if (err) {
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lfsr_format(&lfs, CFG) => 0;
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lfsr_mount(&lfs, CFG) => 0;
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}
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// create a file
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lfsr_file_t file;
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lfsr_file_open(&lfs, &file, "hello", LFS_O_WRONLY | LFS_O_CREAT) => 0;
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uint8_t wbuf[8192];
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strcpy((char*)wbuf, "Hello World!");
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lfs_size_t wsize = strlen((const char*)wbuf);
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lfsr_file_write(&lfs, &file, wbuf, wsize) => wsize;
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lfsr_file_close(&lfs, &file) => 0;
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// remount?
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if (REMOUNT) {
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lfsr_unmount(&lfs) => 0;
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lfsr_mount(&lfs, CFG) => 0;
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}
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// check our file with stat
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struct lfs_info info;
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lfsr_stat(&lfs, "hello", &info) => 0;
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assert(strcmp(info.name, "hello") == 0);
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assert(info.type == LFS_TYPE_REG);
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assert(info.size == wsize);
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// and with dir read
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lfsr_dir_t dir;
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lfsr_dir_open(&lfs, &dir, "/") => 0;
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, ".") == 0);
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assert(info.type == LFS_TYPE_DIR);
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, "..") == 0);
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assert(info.type == LFS_TYPE_DIR);
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, "hello") == 0);
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assert(info.type == LFS_TYPE_REG);
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assert(info.size == wsize);
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lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
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lfsr_dir_close(&lfs, &dir) => 0;
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// try reading our file
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lfsr_file_open(&lfs, &file, "hello", LFS_O_RDONLY) => 0;
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// is size correct?
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lfsr_file_size(&lfs, &file) => wsize;
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// try reading
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uint8_t rbuf[8192];
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lfsr_file_read(&lfs, &file, rbuf, sizeof(rbuf)) => wsize;
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assert(memcmp(rbuf, wbuf, wsize) == 0);
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lfsr_file_close(&lfs, &file) => 0;
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lfsr_unmount(&lfs) => 0;
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'''
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# test we can rewrite a file
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[cases.test_ftree_trunc]
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defines.REMOUNT = [false, true]
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reentrant = true
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code = '''
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// format once per test
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lfs_t lfs;
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int err = lfsr_mount(&lfs, CFG);
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if (err) {
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lfsr_format(&lfs, CFG) => 0;
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lfsr_mount(&lfs, CFG) => 0;
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}
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// create a file
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lfsr_file_t file;
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lfsr_file_open(&lfs, &file, "hello",
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LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
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uint8_t wbuf[8192];
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strcpy((char*)wbuf, "Oh no!");
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lfs_size_t wsize = strlen((const char*)wbuf);
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lfsr_file_write(&lfs, &file, wbuf, wsize) => wsize;
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lfsr_file_close(&lfs, &file) => 0;
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// remount?
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if (REMOUNT) {
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lfsr_unmount(&lfs) => 0;
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lfsr_mount(&lfs, CFG) => 0;
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}
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// rewrite the file
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lfsr_file_open(&lfs, &file, "hello",
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LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
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strcpy((char*)wbuf, "Hello World!");
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wsize = strlen((const char*)wbuf);
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lfsr_file_write(&lfs, &file, wbuf, wsize) => wsize;
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lfsr_file_close(&lfs, &file) => 0;
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// check our file with stat
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struct lfs_info info;
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lfsr_stat(&lfs, "hello", &info) => 0;
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assert(strcmp(info.name, "hello") == 0);
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assert(info.type == LFS_TYPE_REG);
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assert(info.size == wsize);
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// and with dir read
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lfsr_dir_t dir;
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lfsr_dir_open(&lfs, &dir, "/") => 0;
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, ".") == 0);
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assert(info.type == LFS_TYPE_DIR);
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, "..") == 0);
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assert(info.type == LFS_TYPE_DIR);
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, "hello") == 0);
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assert(info.type == LFS_TYPE_REG);
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assert(info.size == wsize);
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lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
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lfsr_dir_close(&lfs, &dir) => 0;
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// try reading our file
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lfsr_file_open(&lfs, &file, "hello", LFS_O_RDONLY) => 0;
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// is size correct?
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lfsr_file_size(&lfs, &file) => wsize;
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// try reading
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uint8_t rbuf[8192];
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lfsr_file_read(&lfs, &file, rbuf, sizeof(rbuf)) => wsize;
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assert(memcmp(rbuf, wbuf, wsize) == 0);
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lfsr_file_close(&lfs, &file) => 0;
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lfsr_unmount(&lfs) => 0;
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'''
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# check for LFS_F_EXCL errors
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[cases.test_ftree_excl]
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defines.REMOUNT = [false, true]
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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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// create a file
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lfsr_file_t file;
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lfsr_file_open(&lfs, &file, "hello",
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LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
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uint8_t wbuf[8192];
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strcpy((char*)wbuf, "Hello World!");
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lfs_size_t wsize = strlen((const char*)wbuf);
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lfsr_file_write(&lfs, &file, wbuf, wsize) => wsize;
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lfsr_file_close(&lfs, &file) => 0;
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// remount?
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if (REMOUNT) {
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lfsr_unmount(&lfs) => 0;
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lfsr_mount(&lfs, CFG) => 0;
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}
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// try to recreate file, this should error
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lfsr_file_open(&lfs, &file, "hello",
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LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => LFS_ERR_EXIST;
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// remount?
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if (REMOUNT) {
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lfsr_unmount(&lfs) => 0;
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lfsr_mount(&lfs, CFG) => 0;
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}
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// check our file with stat
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struct lfs_info info;
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lfsr_stat(&lfs, "hello", &info) => 0;
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assert(strcmp(info.name, "hello") == 0);
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assert(info.type == LFS_TYPE_REG);
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assert(info.size == wsize);
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// and with dir read
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lfsr_dir_t dir;
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lfsr_dir_open(&lfs, &dir, "/") => 0;
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, ".") == 0);
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assert(info.type == LFS_TYPE_DIR);
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, "..") == 0);
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assert(info.type == LFS_TYPE_DIR);
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, "hello") == 0);
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assert(info.type == LFS_TYPE_REG);
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assert(info.size == wsize);
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lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
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lfsr_dir_close(&lfs, &dir) => 0;
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// try reading our file
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lfsr_file_open(&lfs, &file, "hello", LFS_O_RDONLY) => 0;
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// is size correct?
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lfsr_file_size(&lfs, &file) => wsize;
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// try reading
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uint8_t buf[8192];
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lfsr_file_read(&lfs, &file, buf, sizeof(buf)) => wsize;
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lfsr_file_close(&lfs, &file) => 0;
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lfsr_unmount(&lfs) => 0;
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'''
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# a file is not a directory
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[cases.test_ftree_file_not_dir]
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defines.REMOUNT = [false, true]
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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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// create a file
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lfsr_file_t file;
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lfsr_file_open(&lfs, &file, "hello",
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LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
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uint8_t wbuf[8192];
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strcpy((char*)wbuf, "Hello World!");
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lfs_size_t wsize = strlen((const char*)wbuf);
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lfsr_file_write(&lfs, &file, wbuf, wsize) => wsize;
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lfsr_file_close(&lfs, &file) => 0;
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// remount?
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if (REMOUNT) {
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lfsr_unmount(&lfs) => 0;
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lfsr_mount(&lfs, CFG) => 0;
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}
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// try to open our file as a directory
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lfsr_dir_t dir;
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lfsr_dir_open(&lfs, &dir, "hello") => LFS_ERR_NOTDIR;
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// try to create a directory on top of our file
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lfsr_mkdir(&lfs, "hello") => LFS_ERR_EXIST;
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// try to rename a directory onto our file
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lfsr_mkdir(&lfs, "not_hello") => 0;
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lfsr_rename(&lfs, "not_hello", "hello") => LFS_ERR_ISDIR;
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// remount?
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if (REMOUNT) {
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lfsr_unmount(&lfs) => 0;
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lfsr_mount(&lfs, CFG) => 0;
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}
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// check our file with stat
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struct lfs_info info;
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lfsr_stat(&lfs, "hello", &info) => 0;
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assert(strcmp(info.name, "hello") == 0);
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assert(info.type == LFS_TYPE_REG);
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assert(info.size == wsize);
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// and with dir read
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lfsr_dir_open(&lfs, &dir, "/") => 0;
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, ".") == 0);
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assert(info.type == LFS_TYPE_DIR);
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, "..") == 0);
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assert(info.type == LFS_TYPE_DIR);
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, "hello") == 0);
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assert(info.type == LFS_TYPE_REG);
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assert(info.size == wsize);
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, "not_hello") == 0);
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assert(info.type == LFS_TYPE_DIR);
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lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
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lfsr_dir_close(&lfs, &dir) => 0;
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// try reading our file
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lfsr_file_open(&lfs, &file, "hello", LFS_O_RDONLY) => 0;
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// is size correct?
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lfsr_file_size(&lfs, &file) => wsize;
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// try reading
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uint8_t buf[8192];
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lfsr_file_read(&lfs, &file, buf, sizeof(buf)) => wsize;
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lfsr_file_close(&lfs, &file) => 0;
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lfsr_unmount(&lfs) => 0;
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'''
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# a directory is not a file
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[cases.test_ftree_dir_not_file]
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defines.REMOUNT = [false, true]
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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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// create a directory
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lfsr_mkdir(&lfs, "hello") => 0;
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// try reading our directory as a file
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lfsr_file_t file;
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lfsr_file_open(&lfs, &file, "hello", LFS_O_RDONLY) => LFS_ERR_ISDIR;
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// try writing our directory as a file
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lfsr_file_open(&lfs, &file, "hello", LFS_O_WRONLY) => LFS_ERR_ISDIR;
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lfsr_file_open(&lfs, &file, "hello",
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LFS_O_WRONLY | LFS_O_TRUNC) => LFS_ERR_ISDIR;
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lfsr_file_open(&lfs, &file, "hello",
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LFS_O_WRONLY | LFS_O_CREAT) => LFS_ERR_ISDIR;
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lfsr_file_open(&lfs, &file, "hello",
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LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => LFS_ERR_ISDIR;
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// try rename a file on top of our directory
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lfsr_file_open(&lfs, &file, "not_hello",
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LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
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uint8_t wbuf[8192];
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strcpy((char*)wbuf, "Hello World!");
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lfs_size_t wsize = strlen((const char*)wbuf);
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lfsr_file_write(&lfs, &file, wbuf, wsize) => wsize;
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lfsr_file_close(&lfs, &file) => 0;
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lfsr_rename(&lfs, "not_hello", "hello") => LFS_ERR_ISDIR;
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// remount?
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if (REMOUNT) {
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lfsr_unmount(&lfs) => 0;
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lfsr_mount(&lfs, CFG) => 0;
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}
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// check our dir with stat
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struct lfs_info info;
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lfsr_stat(&lfs, "hello", &info) => 0;
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assert(strcmp(info.name, "hello") == 0);
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assert(info.type == LFS_TYPE_DIR);
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// and with dir read
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lfsr_dir_t dir;
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lfsr_dir_open(&lfs, &dir, "/") => 0;
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, ".") == 0);
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assert(info.type == LFS_TYPE_DIR);
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, "..") == 0);
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assert(info.type == LFS_TYPE_DIR);
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, "hello") == 0);
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assert(info.type == LFS_TYPE_DIR);
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, "not_hello") == 0);
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assert(info.type == LFS_TYPE_REG);
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assert(info.size == wsize);
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lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
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lfsr_dir_close(&lfs, &dir) => 0;
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|
|
|
// did we corrupt our renaming file?
|
|
// try reading our file
|
|
lfsr_file_open(&lfs, &file, "not_hello", LFS_O_RDONLY) => 0;
|
|
// is size correct?
|
|
lfsr_file_size(&lfs, &file) => wsize;
|
|
// try reading
|
|
uint8_t rbuf[8192];
|
|
lfsr_file_read(&lfs, &file, rbuf, sizeof(rbuf)) => wsize;
|
|
assert(memcmp(rbuf, wbuf, wsize) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
|
|
# try writing larger files?
|
|
#
|
|
# at 2*CACHE_SIZE we need an inlined tree
|
|
# ? single block?
|
|
# at 2*BLOCK_SIZE we need a b-tree
|
|
#
|
|
[cases.test_ftree_sprout]
|
|
defines.SIZE = ['CACHE_SIZE/2', '2*CACHE_SIZE']
|
|
defines.REMOUNT = [false, true]
|
|
reentrant = true
|
|
code = '''
|
|
// format once per test
|
|
lfs_t lfs;
|
|
int err = lfsr_mount(&lfs, CFG);
|
|
if (err) {
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
}
|
|
|
|
// create a file
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "hello", LFS_O_WRONLY | LFS_O_CREAT) => 0;
|
|
uint8_t wbuf[8192];
|
|
uint32_t prng = 42;
|
|
for (lfs_size_t i = 0; i < SIZE; i++) {
|
|
wbuf[i] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &file, wbuf, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
// remount?
|
|
if (REMOUNT) {
|
|
lfsr_unmount(&lfs) => 0;
|
|
lfsr_mount(&lfs, CFG) => 0;
|
|
}
|
|
|
|
// check our file with stat
|
|
struct lfs_info info;
|
|
lfsr_stat(&lfs, "hello", &info) => 0;
|
|
assert(strcmp(info.name, "hello") == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
|
|
// and with dir read
|
|
lfsr_dir_t dir;
|
|
lfsr_dir_open(&lfs, &dir, "/") => 0;
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "hello") == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
|
|
lfsr_dir_close(&lfs, &dir) => 0;
|
|
|
|
// try reading our file
|
|
lfsr_file_open(&lfs, &file, "hello", LFS_O_RDONLY) => 0;
|
|
// is size correct?
|
|
lfsr_file_size(&lfs, &file) => SIZE;
|
|
// try reading
|
|
uint8_t rbuf[8192];
|
|
lfsr_file_read(&lfs, &file, rbuf, sizeof(rbuf)) => SIZE;
|
|
assert(memcmp(rbuf, wbuf, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
|
|
|
|
## more complex writing patterns to inlined files
|
|
#
|
|
## write files incrementally
|
|
#[cases.test_ftree_incr]
|
|
#defines.SIZE = ['CACHE_SIZE/2', '2*CACHE_SIZE']
|
|
#defines.SYNC = [false, true]
|
|
#defines.REMOUNT = [false, true]
|
|
#reentrant = true
|
|
#code = '''
|
|
#'''
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#
|
|
#[cases.test_files_simple]
|
|
#code = '''
|
|
# lfs_t lfs;
|
|
# lfs_format(&lfs, cfg) => 0;
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# lfs_file_t file;
|
|
# lfs_file_open(&lfs, &file, "hello",
|
|
# LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
# lfs_size_t size = strlen("Hello World!")+1;
|
|
# uint8_t buffer[1024];
|
|
# strcpy((char*)buffer, "Hello World!");
|
|
# lfs_file_write(&lfs, &file, buffer, size) => size;
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# lfs_unmount(&lfs) => 0;
|
|
#
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# lfs_file_open(&lfs, &file, "hello", LFS_O_RDONLY) => 0;
|
|
# lfs_file_read(&lfs, &file, buffer, size) => size;
|
|
# assert(strcmp((char*)buffer, "Hello World!") == 0);
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# lfs_unmount(&lfs) => 0;
|
|
#'''
|
|
#
|
|
#[cases.test_files_large]
|
|
#defines.SIZE = [32, 8192, 262144, 0, 7, 8193]
|
|
#defines.CHUNKSIZE = [31, 16, 33, 1, 1023]
|
|
#code = '''
|
|
# lfs_t lfs;
|
|
# lfs_format(&lfs, cfg) => 0;
|
|
#
|
|
# // write
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# lfs_file_t file;
|
|
# lfs_file_open(&lfs, &file, "avacado",
|
|
# LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
# uint32_t prng = 1;
|
|
# uint8_t buffer[1024];
|
|
# for (lfs_size_t i = 0; i < SIZE; i += CHUNKSIZE) {
|
|
# lfs_size_t chunk = lfs_min(CHUNKSIZE, SIZE-i);
|
|
# for (lfs_size_t b = 0; b < chunk; b++) {
|
|
# buffer[b] = TEST_PRNG(&prng) & 0xff;
|
|
# }
|
|
# lfs_file_write(&lfs, &file, buffer, chunk) => chunk;
|
|
# }
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# lfs_unmount(&lfs) => 0;
|
|
#
|
|
# // read
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# lfs_file_open(&lfs, &file, "avacado", LFS_O_RDONLY) => 0;
|
|
# lfs_file_size(&lfs, &file) => SIZE;
|
|
# prng = 1;
|
|
# for (lfs_size_t i = 0; i < SIZE; i += CHUNKSIZE) {
|
|
# lfs_size_t chunk = lfs_min(CHUNKSIZE, SIZE-i);
|
|
# lfs_file_read(&lfs, &file, buffer, chunk) => chunk;
|
|
# for (lfs_size_t b = 0; b < chunk; b++) {
|
|
# assert(buffer[b] == (TEST_PRNG(&prng) & 0xff));
|
|
# }
|
|
# }
|
|
# lfs_file_read(&lfs, &file, buffer, CHUNKSIZE) => 0;
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# lfs_unmount(&lfs) => 0;
|
|
#'''
|
|
#
|
|
#[cases.test_files_rewrite]
|
|
#defines.SIZE1 = [32, 8192, 131072, 0, 7, 8193]
|
|
#defines.SIZE2 = [32, 8192, 131072, 0, 7, 8193]
|
|
#defines.CHUNKSIZE = [31, 16, 1]
|
|
#code = '''
|
|
# lfs_t lfs;
|
|
# lfs_format(&lfs, cfg) => 0;
|
|
#
|
|
# // write
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# lfs_file_t file;
|
|
# uint8_t buffer[1024];
|
|
# lfs_file_open(&lfs, &file, "avacado",
|
|
# LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
# uint32_t prng = 1;
|
|
# for (lfs_size_t i = 0; i < SIZE1; i += CHUNKSIZE) {
|
|
# lfs_size_t chunk = lfs_min(CHUNKSIZE, SIZE1-i);
|
|
# for (lfs_size_t b = 0; b < chunk; b++) {
|
|
# buffer[b] = TEST_PRNG(&prng) & 0xff;
|
|
# }
|
|
# lfs_file_write(&lfs, &file, buffer, chunk) => chunk;
|
|
# }
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# lfs_unmount(&lfs) => 0;
|
|
#
|
|
# // read
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# lfs_file_open(&lfs, &file, "avacado", LFS_O_RDONLY) => 0;
|
|
# lfs_file_size(&lfs, &file) => SIZE1;
|
|
# prng = 1;
|
|
# for (lfs_size_t i = 0; i < SIZE1; i += CHUNKSIZE) {
|
|
# lfs_size_t chunk = lfs_min(CHUNKSIZE, SIZE1-i);
|
|
# lfs_file_read(&lfs, &file, buffer, chunk) => chunk;
|
|
# for (lfs_size_t b = 0; b < chunk; b++) {
|
|
# assert(buffer[b] == (TEST_PRNG(&prng) & 0xff));
|
|
# }
|
|
# }
|
|
# lfs_file_read(&lfs, &file, buffer, CHUNKSIZE) => 0;
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# lfs_unmount(&lfs) => 0;
|
|
#
|
|
# // rewrite
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# lfs_file_open(&lfs, &file, "avacado", LFS_O_WRONLY) => 0;
|
|
# prng = 2;
|
|
# for (lfs_size_t i = 0; i < SIZE2; i += CHUNKSIZE) {
|
|
# lfs_size_t chunk = lfs_min(CHUNKSIZE, SIZE2-i);
|
|
# for (lfs_size_t b = 0; b < chunk; b++) {
|
|
# buffer[b] = TEST_PRNG(&prng) & 0xff;
|
|
# }
|
|
# lfs_file_write(&lfs, &file, buffer, chunk) => chunk;
|
|
# }
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# lfs_unmount(&lfs) => 0;
|
|
#
|
|
# // read
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# lfs_file_open(&lfs, &file, "avacado", LFS_O_RDONLY) => 0;
|
|
# lfs_file_size(&lfs, &file) => lfs_max(SIZE1, SIZE2);
|
|
# prng = 2;
|
|
# for (lfs_size_t i = 0; i < SIZE2; i += CHUNKSIZE) {
|
|
# lfs_size_t chunk = lfs_min(CHUNKSIZE, SIZE2-i);
|
|
# lfs_file_read(&lfs, &file, buffer, chunk) => chunk;
|
|
# for (lfs_size_t b = 0; b < chunk; b++) {
|
|
# assert(buffer[b] == (TEST_PRNG(&prng) & 0xff));
|
|
# }
|
|
# }
|
|
# if (SIZE1 > SIZE2) {
|
|
# prng = 1;
|
|
# for (lfs_size_t b = 0; b < SIZE2; b++) {
|
|
# TEST_PRNG(&prng);
|
|
# }
|
|
# for (lfs_size_t i = SIZE2; i < SIZE1; i += CHUNKSIZE) {
|
|
# lfs_size_t chunk = lfs_min(CHUNKSIZE, SIZE1-i);
|
|
# lfs_file_read(&lfs, &file, buffer, chunk) => chunk;
|
|
# for (lfs_size_t b = 0; b < chunk; b++) {
|
|
# assert(buffer[b] == (TEST_PRNG(&prng) & 0xff));
|
|
# }
|
|
# }
|
|
# }
|
|
# lfs_file_read(&lfs, &file, buffer, CHUNKSIZE) => 0;
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# lfs_unmount(&lfs) => 0;
|
|
#'''
|
|
#
|
|
#[cases.test_files_append]
|
|
#defines.SIZE1 = [32, 8192, 131072, 0, 7, 8193]
|
|
#defines.SIZE2 = [32, 8192, 131072, 0, 7, 8193]
|
|
#defines.CHUNKSIZE = [31, 16, 1]
|
|
#code = '''
|
|
# lfs_t lfs;
|
|
# lfs_format(&lfs, cfg) => 0;
|
|
#
|
|
# // write
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# lfs_file_t file;
|
|
# uint8_t buffer[1024];
|
|
# lfs_file_open(&lfs, &file, "avacado",
|
|
# LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
# uint32_t prng = 1;
|
|
# for (lfs_size_t i = 0; i < SIZE1; i += CHUNKSIZE) {
|
|
# lfs_size_t chunk = lfs_min(CHUNKSIZE, SIZE1-i);
|
|
# for (lfs_size_t b = 0; b < chunk; b++) {
|
|
# buffer[b] = TEST_PRNG(&prng) & 0xff;
|
|
# }
|
|
# lfs_file_write(&lfs, &file, buffer, chunk) => chunk;
|
|
# }
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# lfs_unmount(&lfs) => 0;
|
|
#
|
|
# // read
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# lfs_file_open(&lfs, &file, "avacado", LFS_O_RDONLY) => 0;
|
|
# lfs_file_size(&lfs, &file) => SIZE1;
|
|
# prng = 1;
|
|
# for (lfs_size_t i = 0; i < SIZE1; i += CHUNKSIZE) {
|
|
# lfs_size_t chunk = lfs_min(CHUNKSIZE, SIZE1-i);
|
|
# lfs_file_read(&lfs, &file, buffer, chunk) => chunk;
|
|
# for (lfs_size_t b = 0; b < chunk; b++) {
|
|
# assert(buffer[b] == (TEST_PRNG(&prng) & 0xff));
|
|
# }
|
|
# }
|
|
# lfs_file_read(&lfs, &file, buffer, CHUNKSIZE) => 0;
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# lfs_unmount(&lfs) => 0;
|
|
#
|
|
# // append
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# lfs_file_open(&lfs, &file, "avacado", LFS_O_WRONLY | LFS_O_APPEND) => 0;
|
|
# prng = 2;
|
|
# for (lfs_size_t i = 0; i < SIZE2; i += CHUNKSIZE) {
|
|
# lfs_size_t chunk = lfs_min(CHUNKSIZE, SIZE2-i);
|
|
# for (lfs_size_t b = 0; b < chunk; b++) {
|
|
# buffer[b] = TEST_PRNG(&prng) & 0xff;
|
|
# }
|
|
# lfs_file_write(&lfs, &file, buffer, chunk) => chunk;
|
|
# }
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# lfs_unmount(&lfs) => 0;
|
|
#
|
|
# // read
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# lfs_file_open(&lfs, &file, "avacado", LFS_O_RDONLY) => 0;
|
|
# lfs_file_size(&lfs, &file) => SIZE1 + SIZE2;
|
|
# prng = 1;
|
|
# for (lfs_size_t i = 0; i < SIZE1; i += CHUNKSIZE) {
|
|
# lfs_size_t chunk = lfs_min(CHUNKSIZE, SIZE1-i);
|
|
# lfs_file_read(&lfs, &file, buffer, chunk) => chunk;
|
|
# for (lfs_size_t b = 0; b < chunk; b++) {
|
|
# assert(buffer[b] == (TEST_PRNG(&prng) & 0xff));
|
|
# }
|
|
# }
|
|
# prng = 2;
|
|
# for (lfs_size_t i = 0; i < SIZE2; i += CHUNKSIZE) {
|
|
# lfs_size_t chunk = lfs_min(CHUNKSIZE, SIZE2-i);
|
|
# lfs_file_read(&lfs, &file, buffer, chunk) => chunk;
|
|
# for (lfs_size_t b = 0; b < chunk; b++) {
|
|
# assert(buffer[b] == (TEST_PRNG(&prng) & 0xff));
|
|
# }
|
|
# }
|
|
# lfs_file_read(&lfs, &file, buffer, CHUNKSIZE) => 0;
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# lfs_unmount(&lfs) => 0;
|
|
#'''
|
|
#
|
|
#[cases.test_files_truncate]
|
|
#defines.SIZE1 = [32, 8192, 131072, 0, 7, 8193]
|
|
#defines.SIZE2 = [32, 8192, 131072, 0, 7, 8193]
|
|
#defines.CHUNKSIZE = [31, 16, 1]
|
|
#code = '''
|
|
# lfs_t lfs;
|
|
# lfs_format(&lfs, cfg) => 0;
|
|
#
|
|
# // write
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# lfs_file_t file;
|
|
# uint8_t buffer[1024];
|
|
# lfs_file_open(&lfs, &file, "avacado",
|
|
# LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
# uint32_t prng = 1;
|
|
# for (lfs_size_t i = 0; i < SIZE1; i += CHUNKSIZE) {
|
|
# lfs_size_t chunk = lfs_min(CHUNKSIZE, SIZE1-i);
|
|
# for (lfs_size_t b = 0; b < chunk; b++) {
|
|
# buffer[b] = TEST_PRNG(&prng) & 0xff;
|
|
# }
|
|
# lfs_file_write(&lfs, &file, buffer, chunk) => chunk;
|
|
# }
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# lfs_unmount(&lfs) => 0;
|
|
#
|
|
# // read
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# lfs_file_open(&lfs, &file, "avacado", LFS_O_RDONLY) => 0;
|
|
# lfs_file_size(&lfs, &file) => SIZE1;
|
|
# prng = 1;
|
|
# for (lfs_size_t i = 0; i < SIZE1; i += CHUNKSIZE) {
|
|
# lfs_size_t chunk = lfs_min(CHUNKSIZE, SIZE1-i);
|
|
# lfs_file_read(&lfs, &file, buffer, chunk) => chunk;
|
|
# for (lfs_size_t b = 0; b < chunk; b++) {
|
|
# assert(buffer[b] == (TEST_PRNG(&prng) & 0xff));
|
|
# }
|
|
# }
|
|
# lfs_file_read(&lfs, &file, buffer, CHUNKSIZE) => 0;
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# lfs_unmount(&lfs) => 0;
|
|
#
|
|
# // truncate
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# lfs_file_open(&lfs, &file, "avacado", LFS_O_WRONLY | LFS_O_TRUNC) => 0;
|
|
# prng = 2;
|
|
# for (lfs_size_t i = 0; i < SIZE2; i += CHUNKSIZE) {
|
|
# lfs_size_t chunk = lfs_min(CHUNKSIZE, SIZE2-i);
|
|
# for (lfs_size_t b = 0; b < chunk; b++) {
|
|
# buffer[b] = TEST_PRNG(&prng) & 0xff;
|
|
# }
|
|
# lfs_file_write(&lfs, &file, buffer, chunk) => chunk;
|
|
# }
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# lfs_unmount(&lfs) => 0;
|
|
#
|
|
# // read
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# lfs_file_open(&lfs, &file, "avacado", LFS_O_RDONLY) => 0;
|
|
# lfs_file_size(&lfs, &file) => SIZE2;
|
|
# prng = 2;
|
|
# for (lfs_size_t i = 0; i < SIZE2; i += CHUNKSIZE) {
|
|
# lfs_size_t chunk = lfs_min(CHUNKSIZE, SIZE2-i);
|
|
# lfs_file_read(&lfs, &file, buffer, chunk) => chunk;
|
|
# for (lfs_size_t b = 0; b < chunk; b++) {
|
|
# assert(buffer[b] == (TEST_PRNG(&prng) & 0xff));
|
|
# }
|
|
# }
|
|
# lfs_file_read(&lfs, &file, buffer, CHUNKSIZE) => 0;
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# lfs_unmount(&lfs) => 0;
|
|
#'''
|
|
#
|
|
#[cases.test_files_reentrant_write]
|
|
#defines.SIZE = [32, 0, 7, 2049]
|
|
#defines.CHUNKSIZE = [31, 16, 65]
|
|
#reentrant = true
|
|
#code = '''
|
|
# lfs_t lfs;
|
|
# int err = lfs_mount(&lfs, cfg);
|
|
# if (err) {
|
|
# lfs_format(&lfs, cfg) => 0;
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# }
|
|
#
|
|
# lfs_file_t file;
|
|
# uint8_t buffer[1024];
|
|
# err = lfs_file_open(&lfs, &file, "avacado", LFS_O_RDONLY);
|
|
# assert(err == LFS_ERR_NOENT || err == 0);
|
|
# if (err == 0) {
|
|
# // can only be 0 (new file) or full size
|
|
# lfs_size_t size = lfs_file_size(&lfs, &file);
|
|
# assert(size == 0 || size == SIZE);
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# }
|
|
#
|
|
# // write
|
|
# lfs_file_open(&lfs, &file, "avacado", LFS_O_WRONLY | LFS_O_CREAT) => 0;
|
|
# uint32_t prng = 1;
|
|
# for (lfs_size_t i = 0; i < SIZE; i += CHUNKSIZE) {
|
|
# lfs_size_t chunk = lfs_min(CHUNKSIZE, SIZE-i);
|
|
# for (lfs_size_t b = 0; b < chunk; b++) {
|
|
# buffer[b] = TEST_PRNG(&prng) & 0xff;
|
|
# }
|
|
# lfs_file_write(&lfs, &file, buffer, chunk) => chunk;
|
|
# }
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
#
|
|
# // read
|
|
# lfs_file_open(&lfs, &file, "avacado", LFS_O_RDONLY) => 0;
|
|
# lfs_file_size(&lfs, &file) => SIZE;
|
|
# prng = 1;
|
|
# for (lfs_size_t i = 0; i < SIZE; i += CHUNKSIZE) {
|
|
# lfs_size_t chunk = lfs_min(CHUNKSIZE, SIZE-i);
|
|
# lfs_file_read(&lfs, &file, buffer, chunk) => chunk;
|
|
# for (lfs_size_t b = 0; b < chunk; b++) {
|
|
# assert(buffer[b] == (TEST_PRNG(&prng) & 0xff));
|
|
# }
|
|
# }
|
|
# lfs_file_read(&lfs, &file, buffer, CHUNKSIZE) => 0;
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# lfs_unmount(&lfs) => 0;
|
|
#'''
|
|
#
|
|
#[cases.test_files_reentrant_write_sync]
|
|
#defines = [
|
|
# # append (O(n))
|
|
# {MODE='LFS_O_APPEND', SIZE=[32, 0, 7, 2049], CHUNKSIZE=[31, 16, 65]},
|
|
# # truncate (O(n^2))
|
|
# {MODE='LFS_O_TRUNC', SIZE=[32, 0, 7, 200], CHUNKSIZE=[31, 16, 65]},
|
|
# # rewrite (O(n^2))
|
|
# {MODE=0, SIZE=[32, 0, 7, 200], CHUNKSIZE=[31, 16, 65]},
|
|
#]
|
|
#reentrant = true
|
|
#code = '''
|
|
# lfs_t lfs;
|
|
# int err = lfs_mount(&lfs, cfg);
|
|
# if (err) {
|
|
# lfs_format(&lfs, cfg) => 0;
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# }
|
|
#
|
|
# lfs_file_t file;
|
|
# uint8_t buffer[1024];
|
|
# err = lfs_file_open(&lfs, &file, "avacado", LFS_O_RDONLY);
|
|
# assert(err == LFS_ERR_NOENT || err == 0);
|
|
# if (err == 0) {
|
|
# // with syncs we could be any size, but it at least must be valid data
|
|
# lfs_size_t size = lfs_file_size(&lfs, &file);
|
|
# assert(size <= SIZE);
|
|
# uint32_t prng = 1;
|
|
# for (lfs_size_t i = 0; i < size; i += CHUNKSIZE) {
|
|
# lfs_size_t chunk = lfs_min(CHUNKSIZE, size-i);
|
|
# lfs_file_read(&lfs, &file, buffer, chunk) => chunk;
|
|
# for (lfs_size_t b = 0; b < chunk; b++) {
|
|
# assert(buffer[b] == (TEST_PRNG(&prng) & 0xff));
|
|
# }
|
|
# }
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# }
|
|
#
|
|
# // write
|
|
# lfs_file_open(&lfs, &file, "avacado",
|
|
# LFS_O_WRONLY | LFS_O_CREAT | MODE) => 0;
|
|
# lfs_size_t size = lfs_file_size(&lfs, &file);
|
|
# assert(size <= SIZE);
|
|
# uint32_t prng = 1;
|
|
# lfs_size_t skip = (MODE == LFS_O_APPEND) ? size : 0;
|
|
# for (lfs_size_t b = 0; b < skip; b++) {
|
|
# TEST_PRNG(&prng);
|
|
# }
|
|
# for (lfs_size_t i = skip; i < SIZE; i += CHUNKSIZE) {
|
|
# lfs_size_t chunk = lfs_min(CHUNKSIZE, SIZE-i);
|
|
# for (lfs_size_t b = 0; b < chunk; b++) {
|
|
# buffer[b] = TEST_PRNG(&prng) & 0xff;
|
|
# }
|
|
# lfs_file_write(&lfs, &file, buffer, chunk) => chunk;
|
|
# lfs_file_sync(&lfs, &file) => 0;
|
|
# }
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
#
|
|
# // read
|
|
# lfs_file_open(&lfs, &file, "avacado", LFS_O_RDONLY) => 0;
|
|
# lfs_file_size(&lfs, &file) => SIZE;
|
|
# prng = 1;
|
|
# for (lfs_size_t i = 0; i < SIZE; i += CHUNKSIZE) {
|
|
# lfs_size_t chunk = lfs_min(CHUNKSIZE, SIZE-i);
|
|
# lfs_file_read(&lfs, &file, buffer, chunk) => chunk;
|
|
# for (lfs_size_t b = 0; b < chunk; b++) {
|
|
# assert(buffer[b] == (TEST_PRNG(&prng) & 0xff));
|
|
# }
|
|
# }
|
|
# lfs_file_read(&lfs, &file, buffer, CHUNKSIZE) => 0;
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# lfs_unmount(&lfs) => 0;
|
|
#'''
|
|
#
|
|
#[cases.test_files_many]
|
|
#defines.N = 300
|
|
#code = '''
|
|
# lfs_t lfs;
|
|
# lfs_format(&lfs, cfg) => 0;
|
|
# // create N files of 7 bytes
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# for (int i = 0; i < N; i++) {
|
|
# lfs_file_t file;
|
|
# char path[1024];
|
|
# sprintf(path, "file_%03d", i);
|
|
# lfs_file_open(&lfs, &file, path,
|
|
# LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
# char wbuffer[1024];
|
|
# lfs_size_t size = 7;
|
|
# sprintf(wbuffer, "Hi %03d", i);
|
|
# lfs_file_write(&lfs, &file, wbuffer, size) => size;
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
#
|
|
# char rbuffer[1024];
|
|
# lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
|
|
# lfs_file_read(&lfs, &file, rbuffer, size) => size;
|
|
# assert(strcmp(rbuffer, wbuffer) == 0);
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# }
|
|
# lfs_unmount(&lfs) => 0;
|
|
#'''
|
|
#
|
|
#[cases.test_files_many_power_cycle]
|
|
#defines.N = 300
|
|
#code = '''
|
|
# lfs_t lfs;
|
|
# lfs_format(&lfs, cfg) => 0;
|
|
# // create N files of 7 bytes
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# for (int i = 0; i < N; i++) {
|
|
# lfs_file_t file;
|
|
# char path[1024];
|
|
# sprintf(path, "file_%03d", i);
|
|
# lfs_file_open(&lfs, &file, path,
|
|
# LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
# char wbuffer[1024];
|
|
# lfs_size_t size = 7;
|
|
# sprintf(wbuffer, "Hi %03d", i);
|
|
# lfs_file_write(&lfs, &file, wbuffer, size) => size;
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# lfs_unmount(&lfs) => 0;
|
|
#
|
|
# char rbuffer[1024];
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
|
|
# lfs_file_read(&lfs, &file, rbuffer, size) => size;
|
|
# assert(strcmp(rbuffer, wbuffer) == 0);
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# }
|
|
# lfs_unmount(&lfs) => 0;
|
|
#'''
|
|
#
|
|
#[cases.test_files_many_power_loss]
|
|
#defines.N = 300
|
|
#reentrant = true
|
|
#code = '''
|
|
# lfs_t lfs;
|
|
# int err = lfs_mount(&lfs, cfg);
|
|
# if (err) {
|
|
# lfs_format(&lfs, cfg) => 0;
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# }
|
|
# // create N files of 7 bytes
|
|
# for (int i = 0; i < N; i++) {
|
|
# lfs_file_t file;
|
|
# char path[1024];
|
|
# sprintf(path, "file_%03d", i);
|
|
# err = lfs_file_open(&lfs, &file, path, LFS_O_WRONLY | LFS_O_CREAT);
|
|
# char wbuffer[1024];
|
|
# lfs_size_t size = 7;
|
|
# sprintf(wbuffer, "Hi %03d", i);
|
|
# if ((lfs_size_t)lfs_file_size(&lfs, &file) != size) {
|
|
# lfs_file_write(&lfs, &file, wbuffer, size) => size;
|
|
# }
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
#
|
|
# char rbuffer[1024];
|
|
# lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
|
|
# lfs_file_read(&lfs, &file, rbuffer, size) => size;
|
|
# assert(strcmp(rbuffer, wbuffer) == 0);
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# }
|
|
# lfs_unmount(&lfs) => 0;
|
|
#'''
|