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Fixed allocation bugs near the end of storage

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Also added better testing specifically for these corner cases
around the end of storage
This commit is contained in:
Christopher Haster
2017-04-29 12:41:53 -05:00
parent 210b487325
commit a30142e0e1
3 changed files with 110 additions and 27 deletions
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tests/test_alloc.sh
+64
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@@ -193,5 +193,69 @@ tests/test.py << TEST
lfs_unmount(&lfs) => 0;
TEST
echo "--- Dir exhaustion test ---"
tests/test.py << TEST
lfs_mount(&lfs, &cfg) => 0;
lfs_stat(&lfs, "exhaustion", &info) => 0;
lfs_size_t fullsize = info.size;
lfs_remove(&lfs, "exhaustion") => 0;
lfs_file_open(&lfs, &file[0], "exhaustion", LFS_O_WRONLY | LFS_O_CREAT);
size = strlen("blahblahblahblah");
memcpy(buffer, "blahblahblahblah", size);
for (lfs_size_t i = 0; i < fullsize - 2*512; i += size) {
lfs_file_write(&lfs, &file[0], buffer, size) => size;
}
lfs_file_close(&lfs, &file[0]) => 0;
lfs_mkdir(&lfs, "exhaustiondir") => 0;
lfs_remove(&lfs, "exhaustiondir") => 0;
lfs_file_open(&lfs, &file[0], "exhaustion", LFS_O_WRONLY | LFS_O_APPEND);
size = strlen("blahblahblahblah");
memcpy(buffer, "blahblahblahblah", size);
lfs_file_write(&lfs, &file[0], buffer, size) => size;
lfs_file_close(&lfs, &file[0]) => 0;
lfs_mkdir(&lfs, "exhaustiondir") => LFS_ERR_NOSPC;
lfs_unmount(&lfs) => 0;
TEST
echo "--- Chained dir exhaustion test ---"
tests/test.py << TEST
lfs_mount(&lfs, &cfg) => 0;
lfs_stat(&lfs, "exhaustion", &info) => 0;
lfs_size_t fullsize = info.size;
lfs_remove(&lfs, "exhaustion") => 0;
lfs_file_open(&lfs, &file[0], "exhaustion", LFS_O_WRONLY | LFS_O_CREAT);
size = strlen("blahblahblahblah");
memcpy(buffer, "blahblahblahblah", size);
for (lfs_size_t i = 0; i < fullsize - 19*512; i += size) {
lfs_file_write(&lfs, &file[0], buffer, size) => size;
}
lfs_file_close(&lfs, &file[0]) => 0;
for (int i = 0; i < 9; i++) {
sprintf((char*)buffer, "dirwithanexhaustivelylongnameforpadding%d", i);
lfs_mkdir(&lfs, (char*)buffer) => 0;
}
lfs_mkdir(&lfs, "exhaustiondir") => LFS_ERR_NOSPC;
lfs_remove(&lfs, "exhaustion") => 0;
lfs_file_open(&lfs, &file[0], "exhaustion", LFS_O_WRONLY | LFS_O_CREAT);
size = strlen("blahblahblahblah");
memcpy(buffer, "blahblahblahblah", size);
for (lfs_size_t i = 0; i < fullsize - 20*512; i += size) {
lfs_file_write(&lfs, &file[0], buffer, size) => size;
}
lfs_file_close(&lfs, &file[0]) => 0;
lfs_mkdir(&lfs, "exhaustiondir") => 0;
lfs_mkdir(&lfs, "exhaustiondir2") => LFS_ERR_NOSPC;
TEST
echo "--- Results ---"
tests/stats.py