mirror of
https://github.com/eledio-devices/thirdparty-littlefs.git
synced 2025-10-31 16:14:16 +01:00
795dd8c7ab
This was an oversight on my part when adding strict ordering to directories. Unfortunately now we can't take advantage of the atomic creation of tail+dir entries. Now we need to first create the tail, then create the actually directory entry. If we lose power, the orphan is cleaned up like orphans created during remove. Note that we still take advantage of the atomic tail+dir entries if we are an end block. This is actually because this corner case is complicated to _not_ do atomically, needing to update the directory we just committed to.
119 lines
2.5 KiB
Bash
Executable File
119 lines
2.5 KiB
Bash
Executable File
#!/bin/bash
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set -eu
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echo "=== Corrupt tests ==="
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NAMEMULT=64
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FILEMULT=1
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lfs_mktree() {
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tests/test.py ${1:-} << TEST
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lfs_format(&lfs, &cfg) => 0;
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lfs_mount(&lfs, &cfg) => 0;
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for (int i = 1; i < 10; i++) {
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for (int j = 0; j < $NAMEMULT; j++) {
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buffer[j] = '0'+i;
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}
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buffer[$NAMEMULT] = '\0';
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lfs_mkdir(&lfs, (char*)buffer) => 0;
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buffer[$NAMEMULT] = '/';
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for (int j = 0; j < $NAMEMULT; j++) {
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buffer[j+$NAMEMULT+1] = '0'+i;
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}
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buffer[2*$NAMEMULT+1] = '\0';
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lfs_file_open(&lfs, &file[0], (char*)buffer,
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LFS_O_WRONLY | LFS_O_CREAT) => 0;
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size = $NAMEMULT;
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for (int j = 0; j < i*$FILEMULT; j++) {
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lfs_file_write(&lfs, &file[0], buffer, size) => size;
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}
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lfs_file_close(&lfs, &file[0]) => 0;
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}
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lfs_unmount(&lfs) => 0;
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TEST
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}
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lfs_chktree() {
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tests/test.py ${1:-} << TEST
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lfs_mount(&lfs, &cfg) => 0;
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for (int i = 1; i < 10; i++) {
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for (int j = 0; j < $NAMEMULT; j++) {
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buffer[j] = '0'+i;
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}
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buffer[$NAMEMULT] = '\0';
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lfs_stat(&lfs, (char*)buffer, &info) => 0;
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info.type => LFS_TYPE_DIR;
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buffer[$NAMEMULT] = '/';
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for (int j = 0; j < $NAMEMULT; j++) {
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buffer[j+$NAMEMULT+1] = '0'+i;
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}
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buffer[2*$NAMEMULT+1] = '\0';
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lfs_file_open(&lfs, &file[0], (char*)buffer, LFS_O_RDONLY) => 0;
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size = $NAMEMULT;
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for (int j = 0; j < i*$FILEMULT; j++) {
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lfs_file_read(&lfs, &file[0], rbuffer, size) => size;
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memcmp(buffer, rbuffer, size) => 0;
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}
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lfs_file_close(&lfs, &file[0]) => 0;
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}
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lfs_unmount(&lfs) => 0;
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TEST
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}
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echo "--- Sanity check ---"
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rm -rf blocks
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lfs_mktree
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lfs_chktree
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BLOCKS="$(ls blocks | grep -vw '[01]')"
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echo "--- Block corruption ---"
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for b in $BLOCKS
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do
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rm -rf blocks
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mkdir blocks
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ln -s /dev/zero blocks/$b
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lfs_mktree
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lfs_chktree
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done
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echo "--- Block persistance ---"
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for b in $BLOCKS
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do
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rm -rf blocks
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mkdir blocks
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lfs_mktree
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chmod a-w blocks/$b || true
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lfs_mktree
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lfs_chktree
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done
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echo "--- Big region corruption ---"
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rm -rf blocks
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mkdir blocks
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for i in {2..512}
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do
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ln -s /dev/zero blocks/$(printf '%x' $i)
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done
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lfs_mktree
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lfs_chktree
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echo "--- Alternating corruption ---"
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rm -rf blocks
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mkdir blocks
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for i in {2..1024..2}
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do
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ln -s /dev/zero blocks/$(printf '%x' $i)
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done
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lfs_mktree
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lfs_chktree
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echo "--- Results ---"
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tests/stats.py
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