mirror of
https://github.com/eledio-devices/thirdparty-littlefs.git
synced 2025-10-31 16:14:16 +01:00
aae22c8256
This is caused by dir->head not being updated when dir->m.pair may be. This causes the two to fall out of sync and later dir rewinds to fail. This bug stems all the way back from the first commits of littlefs, so it's surprising it has avoided detection for this long. Perhaps because lfs_dir_rewind is not used often.
89 lines
3.0 KiB
Bash
Executable File
89 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
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set -eu
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export TEST_FILE=$0
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trap 'export TEST_LINE=$LINENO' DEBUG
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ITERATIONS=20
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COUNT=10
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echo "=== Relocation tests ==="
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rm -rf blocks
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scripts/test.py << TEST
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lfs_format(&lfs, &cfg) => 0;
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// fill up filesystem so only ~16 blocks are left
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lfs_mount(&lfs, &cfg) => 0;
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lfs_file_open(&lfs, &file, "padding", LFS_O_CREAT | LFS_O_WRONLY) => 0;
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memset(buffer, 0, 512);
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while (LFS_BLOCK_COUNT - lfs_fs_size(&lfs) > 16) {
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lfs_file_write(&lfs, &file, buffer, 512) => 512;
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}
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lfs_file_close(&lfs, &file) => 0;
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// make a child dir to use in bounded space
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lfs_mkdir(&lfs, "child") => 0;
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lfs_unmount(&lfs) => 0;
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TEST
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echo "--- Outdated head test ---"
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scripts/test.py << TEST
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lfs_mount(&lfs, &cfg) => 0;
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for (int j = 0; j < $ITERATIONS; j++) {
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for (int i = 0; i < $COUNT; i++) {
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sprintf(path, "child/test%03d_loooooooooooooooooong_name", i);
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lfs_file_open(&lfs, &file, path, LFS_O_CREAT | LFS_O_WRONLY) => 0;
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lfs_file_close(&lfs, &file) => 0;
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}
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lfs_dir_open(&lfs, &dir, "child") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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for (int i = 0; i < $COUNT; i++) {
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sprintf(path, "test%03d_loooooooooooooooooong_name", i);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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strcmp(info.name, path) => 0;
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info.size => 0;
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sprintf(path, "child/test%03d_loooooooooooooooooong_name", i);
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lfs_file_open(&lfs, &file, path, LFS_O_WRONLY) => 0;
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lfs_file_write(&lfs, &file, "hi", 2) => 2;
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lfs_file_close(&lfs, &file) => 0;
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}
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lfs_dir_read(&lfs, &dir, &info) => 0;
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lfs_dir_rewind(&lfs, &dir) => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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for (int i = 0; i < $COUNT; i++) {
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sprintf(path, "test%03d_loooooooooooooooooong_name", i);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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strcmp(info.name, path) => 0;
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info.size => 2;
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sprintf(path, "child/test%03d_loooooooooooooooooong_name", i);
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lfs_file_open(&lfs, &file, path, LFS_O_WRONLY) => 0;
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lfs_file_write(&lfs, &file, "hi", 2) => 2;
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lfs_file_close(&lfs, &file) => 0;
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}
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lfs_dir_read(&lfs, &dir, &info) => 0;
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lfs_dir_rewind(&lfs, &dir) => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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for (int i = 0; i < $COUNT; i++) {
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sprintf(path, "test%03d_loooooooooooooooooong_name", i);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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strcmp(info.name, path) => 0;
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info.size => 2;
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}
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lfs_dir_read(&lfs, &dir, &info) => 0;
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lfs_dir_close(&lfs, &dir) => 0;
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for (int i = 0; i < $COUNT; i++) {
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sprintf(path, "child/test%03d_loooooooooooooooooong_name", i);
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lfs_remove(&lfs, path) => 0;
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}
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}
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lfs_unmount(&lfs) => 0;
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TEST
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scripts/results.py
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