mirror of
https://github.com/eledio-devices/thirdparty-littlefs.git
synced 2025-10-31 16:14:16 +01:00
5bf71fa43e
When using lfs_file_truncate() to make a file shorter the file block and off were incorrectly positioned at the new end, resulting in invalid data accessed when reading. Lift the seek pointer restoration to apply to both increasing and reducing truncates. Signed-off-by: Peter A. Bigot <pab@pabigot.com>
356 lines
12 KiB
Bash
Executable File
356 lines
12 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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echo "=== Truncate tests ==="
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SMALLSIZE=32
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MEDIUMSIZE=2048
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LARGESIZE=8192
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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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TEST
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echo "--- Simple truncate ---"
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scripts/test.py << TEST
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lfs_mount(&lfs, &cfg) => 0;
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lfs_file_open(&lfs, &file, "baldynoop",
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LFS_O_WRONLY | LFS_O_CREAT) => 0;
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strcpy((char*)buffer, "hair");
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lfs_size_t size = strlen((char*)buffer);
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for (lfs_off_t j = 0; j < $LARGESIZE; j += size) {
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lfs_file_write(&lfs, &file, buffer, size) => size;
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}
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lfs_file_size(&lfs, &file) => $LARGESIZE;
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lfs_file_close(&lfs, &file) => 0;
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lfs_unmount(&lfs) => 0;
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TEST
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scripts/test.py << TEST
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lfs_mount(&lfs, &cfg) => 0;
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lfs_file_open(&lfs, &file, "baldynoop", LFS_O_RDWR) => 0;
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lfs_file_size(&lfs, &file) => $LARGESIZE;
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lfs_file_truncate(&lfs, &file, $MEDIUMSIZE) => 0;
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lfs_file_size(&lfs, &file) => $MEDIUMSIZE;
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lfs_file_close(&lfs, &file) => 0;
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lfs_unmount(&lfs) => 0;
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TEST
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scripts/test.py << TEST
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lfs_mount(&lfs, &cfg) => 0;
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lfs_file_open(&lfs, &file, "baldynoop", LFS_O_RDONLY) => 0;
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lfs_file_size(&lfs, &file) => $MEDIUMSIZE;
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lfs_size_t size = strlen("hair");
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for (lfs_off_t j = 0; j < $MEDIUMSIZE; j += size) {
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "hair", size) => 0;
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}
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lfs_file_read(&lfs, &file, buffer, size) => 0;
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lfs_file_close(&lfs, &file) => 0;
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lfs_unmount(&lfs) => 0;
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TEST
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echo "--- Truncate and read ---"
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scripts/test.py << TEST
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lfs_mount(&lfs, &cfg) => 0;
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lfs_file_open(&lfs, &file, "baldyread",
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LFS_O_WRONLY | LFS_O_CREAT) => 0;
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strcpy((char*)buffer, "hair");
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lfs_size_t size = strlen((char*)buffer);
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for (lfs_off_t j = 0; j < $LARGESIZE; j += size) {
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lfs_file_write(&lfs, &file, buffer, size) => size;
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}
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lfs_file_size(&lfs, &file) => $LARGESIZE;
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lfs_file_close(&lfs, &file) => 0;
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lfs_unmount(&lfs) => 0;
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TEST
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scripts/test.py << TEST
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lfs_mount(&lfs, &cfg) => 0;
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lfs_file_open(&lfs, &file, "baldyread", LFS_O_RDWR) => 0;
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lfs_file_size(&lfs, &file) => $LARGESIZE;
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lfs_file_truncate(&lfs, &file, $MEDIUMSIZE) => 0;
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lfs_file_size(&lfs, &file) => $MEDIUMSIZE;
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lfs_size_t size = strlen("hair");
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for (lfs_off_t j = 0; j < $MEDIUMSIZE; j += size) {
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "hair", size) => 0;
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}
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lfs_file_read(&lfs, &file, buffer, size) => 0;
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lfs_file_close(&lfs, &file) => 0;
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lfs_unmount(&lfs) => 0;
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TEST
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scripts/test.py << TEST
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lfs_mount(&lfs, &cfg) => 0;
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lfs_file_open(&lfs, &file, "baldyread", LFS_O_RDONLY) => 0;
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lfs_file_size(&lfs, &file) => $MEDIUMSIZE;
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lfs_size_t size = strlen("hair");
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for (lfs_off_t j = 0; j < $MEDIUMSIZE; j += size) {
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "hair", size) => 0;
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}
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lfs_file_read(&lfs, &file, buffer, size) => 0;
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lfs_file_close(&lfs, &file) => 0;
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lfs_unmount(&lfs) => 0;
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TEST
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echo "--- Write, truncate, and read ---"
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scripts/test.py << TEST
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lfs_mount(&lfs, &cfg) => 0;
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lfs_file_open(&lfs, &file, "sequence",
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LFS_O_RDWR | LFS_O_CREAT | LFS_O_TRUNC) => 0;
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lfs_size_t size = lfs.cfg->cache_size;
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lfs_size_t qsize = size / 4;
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uint8_t *wb = buffer;
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uint8_t *rb = buffer + size;
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for (lfs_off_t j = 0; j < size; ++j) {
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wb[j] = j;
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}
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/* Spread sequence over size */
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lfs_file_write(&lfs, &file, wb, size) => size;
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lfs_file_size(&lfs, &file) => size;
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lfs_file_tell(&lfs, &file) => size;
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lfs_file_seek(&lfs, &file, 0, LFS_SEEK_SET) => 0;
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lfs_file_tell(&lfs, &file) => 0;
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/* Chop off the last quarter */
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lfs_size_t trunc = size - qsize;
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lfs_file_truncate(&lfs, &file, trunc) => 0;
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lfs_file_tell(&lfs, &file) => 0;
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lfs_file_size(&lfs, &file) => trunc;
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/* Read should produce first 3/4 */
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lfs_file_read(&lfs, &file, rb, size) => trunc;
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memcmp(rb, wb, trunc) => 0;
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/* Move to 1/4 */
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lfs_file_size(&lfs, &file) => trunc;
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lfs_file_seek(&lfs, &file, qsize, LFS_SEEK_SET) => qsize;
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lfs_file_tell(&lfs, &file) => qsize;
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/* Chop to 1/2 */
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trunc -= qsize;
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lfs_file_truncate(&lfs, &file, trunc) => 0;
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lfs_file_tell(&lfs, &file) => qsize;
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lfs_file_size(&lfs, &file) => trunc;
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/* Read should produce second quarter */
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lfs_file_read(&lfs, &file, rb, size) => trunc - qsize;
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memcmp(rb, wb + qsize, trunc - qsize) => 0;
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lfs_file_close(&lfs, &file) => 0;
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lfs_unmount(&lfs) => 0;
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TEST
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echo "--- Truncate and write ---"
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scripts/test.py << TEST
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lfs_mount(&lfs, &cfg) => 0;
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lfs_file_open(&lfs, &file, "baldywrite",
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LFS_O_WRONLY | LFS_O_CREAT) => 0;
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strcpy((char*)buffer, "hair");
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lfs_size_t size = strlen((char*)buffer);
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for (lfs_off_t j = 0; j < $LARGESIZE; j += size) {
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lfs_file_write(&lfs, &file, buffer, size) => size;
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}
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lfs_file_size(&lfs, &file) => $LARGESIZE;
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lfs_file_close(&lfs, &file) => 0;
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lfs_unmount(&lfs) => 0;
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TEST
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scripts/test.py << TEST
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lfs_mount(&lfs, &cfg) => 0;
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lfs_file_open(&lfs, &file, "baldywrite", LFS_O_RDWR) => 0;
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lfs_file_size(&lfs, &file) => $LARGESIZE;
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lfs_file_truncate(&lfs, &file, $MEDIUMSIZE) => 0;
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lfs_file_size(&lfs, &file) => $MEDIUMSIZE;
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strcpy((char*)buffer, "bald");
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lfs_size_t size = strlen((char*)buffer);
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for (lfs_off_t j = 0; j < $MEDIUMSIZE; j += size) {
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lfs_file_write(&lfs, &file, buffer, size) => size;
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}
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lfs_file_size(&lfs, &file) => $MEDIUMSIZE;
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lfs_file_close(&lfs, &file) => 0;
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lfs_unmount(&lfs) => 0;
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TEST
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scripts/test.py << TEST
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lfs_mount(&lfs, &cfg) => 0;
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lfs_file_open(&lfs, &file, "baldywrite", LFS_O_RDONLY) => 0;
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lfs_file_size(&lfs, &file) => $MEDIUMSIZE;
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lfs_size_t size = strlen("bald");
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for (lfs_off_t j = 0; j < $MEDIUMSIZE; j += size) {
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "bald", size) => 0;
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}
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lfs_file_read(&lfs, &file, buffer, size) => 0;
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lfs_file_close(&lfs, &file) => 0;
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lfs_unmount(&lfs) => 0;
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TEST
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# More aggressive general truncation tests
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truncate_test() {
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STARTSIZES="$1"
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STARTSEEKS="$2"
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HOTSIZES="$3"
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COLDSIZES="$4"
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scripts/test.py << TEST
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static const lfs_off_t startsizes[] = {$STARTSIZES};
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static const lfs_off_t startseeks[] = {$STARTSEEKS};
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static const lfs_off_t hotsizes[] = {$HOTSIZES};
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lfs_mount(&lfs, &cfg) => 0;
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for (unsigned i = 0; i < sizeof(startsizes)/sizeof(startsizes[0]); i++) {
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sprintf(path, "hairyhead%d", i);
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lfs_file_open(&lfs, &file, path,
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LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
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strcpy((char*)buffer, "hair");
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lfs_size_t size = strlen((char*)buffer);
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for (lfs_off_t j = 0; j < startsizes[i]; j += size) {
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lfs_file_write(&lfs, &file, buffer, size) => size;
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}
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lfs_file_size(&lfs, &file) => startsizes[i];
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if (startseeks[i] != startsizes[i]) {
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lfs_file_seek(&lfs, &file,
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startseeks[i], LFS_SEEK_SET) => startseeks[i];
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}
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lfs_file_truncate(&lfs, &file, hotsizes[i]) => 0;
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lfs_file_size(&lfs, &file) => hotsizes[i];
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lfs_file_close(&lfs, &file) => 0;
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}
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lfs_unmount(&lfs) => 0;
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TEST
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scripts/test.py << TEST
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static const lfs_off_t startsizes[] = {$STARTSIZES};
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static const lfs_off_t hotsizes[] = {$HOTSIZES};
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static const lfs_off_t coldsizes[] = {$COLDSIZES};
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lfs_mount(&lfs, &cfg) => 0;
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for (unsigned i = 0; i < sizeof(startsizes)/sizeof(startsizes[0]); i++) {
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sprintf(path, "hairyhead%d", i);
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lfs_file_open(&lfs, &file, path, LFS_O_RDWR) => 0;
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lfs_file_size(&lfs, &file) => hotsizes[i];
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lfs_size_t size = strlen("hair");
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lfs_off_t j = 0;
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for (; j < startsizes[i] && j < hotsizes[i]; j += size) {
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "hair", size) => 0;
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}
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for (; j < hotsizes[i]; j += size) {
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "\0\0\0\0", size) => 0;
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}
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lfs_file_truncate(&lfs, &file, coldsizes[i]) => 0;
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lfs_file_size(&lfs, &file) => coldsizes[i];
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lfs_file_close(&lfs, &file) => 0;
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}
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lfs_unmount(&lfs) => 0;
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TEST
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scripts/test.py << TEST
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static const lfs_off_t startsizes[] = {$STARTSIZES};
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static const lfs_off_t hotsizes[] = {$HOTSIZES};
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static const lfs_off_t coldsizes[] = {$COLDSIZES};
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lfs_mount(&lfs, &cfg) => 0;
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for (unsigned i = 0; i < sizeof(startsizes)/sizeof(startsizes[0]); i++) {
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sprintf(path, "hairyhead%d", i);
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lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
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lfs_file_size(&lfs, &file) => coldsizes[i];
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lfs_size_t size = strlen("hair");
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lfs_off_t j = 0;
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for (; j < startsizes[i] && j < hotsizes[i] && j < coldsizes[i];
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j += size) {
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "hair", size) => 0;
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}
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for (; j < coldsizes[i]; j += size) {
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "\0\0\0\0", size) => 0;
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}
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lfs_file_close(&lfs, &file) => 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 "--- Cold shrinking truncate ---"
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truncate_test \
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"2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE" \
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"2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE" \
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"2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE" \
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" 0, $SMALLSIZE, $MEDIUMSIZE, $LARGESIZE, 2*$LARGESIZE"
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echo "--- Cold expanding truncate ---"
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truncate_test \
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" 0, $SMALLSIZE, $MEDIUMSIZE, $LARGESIZE, 2*$LARGESIZE" \
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" 0, $SMALLSIZE, $MEDIUMSIZE, $LARGESIZE, 2*$LARGESIZE" \
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" 0, $SMALLSIZE, $MEDIUMSIZE, $LARGESIZE, 2*$LARGESIZE" \
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"2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE"
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echo "--- Warm shrinking truncate ---"
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truncate_test \
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"2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE" \
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"2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE" \
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" 0, $SMALLSIZE, $MEDIUMSIZE, $LARGESIZE, 2*$LARGESIZE" \
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" 0, 0, 0, 0, 0"
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echo "--- Warm expanding truncate ---"
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truncate_test \
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" 0, $SMALLSIZE, $MEDIUMSIZE, $LARGESIZE, 2*$LARGESIZE" \
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" 0, $SMALLSIZE, $MEDIUMSIZE, $LARGESIZE, 2*$LARGESIZE" \
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"2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE" \
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"2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE"
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echo "--- Mid-file shrinking truncate ---"
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truncate_test \
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"2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE" \
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" $LARGESIZE, $LARGESIZE, $LARGESIZE, $LARGESIZE, $LARGESIZE" \
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" 0, $SMALLSIZE, $MEDIUMSIZE, $LARGESIZE, 2*$LARGESIZE" \
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" 0, 0, 0, 0, 0"
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echo "--- Mid-file expanding truncate ---"
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truncate_test \
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" 0, $SMALLSIZE, $MEDIUMSIZE, $LARGESIZE, 2*$LARGESIZE" \
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" 0, 0, $SMALLSIZE, $MEDIUMSIZE, $LARGESIZE" \
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"2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE" \
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"2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE"
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scripts/results.py
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