mirror of
https://github.com/eledio-devices/thirdparty-littlefs.git
synced 2025-11-01 00:38:29 +01:00
0197b18100
The superblock entry takes up id 0 in the root directory (not all entries are files, though currently the superblock is the only exception). Normally, reading a directory correctly skips the superblock and only reports non-superblock files. However, this doesn't work perfectly for lfs_dir_seek, which tries to be clever to not touch the disk. Fortunately, we can fix this by adding an offset for the superblock. This will only work while the superblock is the only non-file entry, otherwise we would need to touch the disk to properly seek in a directory (though we already touch the disk a bit to get dir-tails during seeks). Found by jhartika
506 lines
16 KiB
Bash
Executable File
506 lines
16 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 "=== Seek tests ==="
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SMALLSIZE=4
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MEDIUMSIZE=128
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LARGESIZE=132
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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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lfs_mount(&lfs, &cfg) => 0;
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lfs_mkdir(&lfs, "hello") => 0;
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for (int i = 0; i < $LARGESIZE; i++) {
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sprintf(path, "hello/kitty%03d", i);
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lfs_file_open(&lfs, &file, path,
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LFS_O_WRONLY | LFS_O_CREAT | LFS_O_APPEND) => 0;
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lfs_size_t size = strlen("kittycatcat");
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memcpy(buffer, "kittycatcat", size);
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for (int j = 0; j < $LARGESIZE; j++) {
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lfs_file_write(&lfs, &file, buffer, size);
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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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echo "--- Simple dir seek ---"
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scripts/test.py << TEST
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lfs_mount(&lfs, &cfg) => 0;
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lfs_dir_open(&lfs, &dir, "hello") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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strcmp(info.name, ".") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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strcmp(info.name, "..") => 0;
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lfs_soff_t pos;
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int i;
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for (i = 0; i < $SMALLSIZE; i++) {
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sprintf(path, "kitty%03d", 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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pos = lfs_dir_tell(&lfs, &dir);
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}
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pos >= 0 => 1;
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lfs_dir_seek(&lfs, &dir, pos) => 0;
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sprintf(path, "kitty%03d", 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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lfs_dir_rewind(&lfs, &dir) => 0;
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sprintf(path, "kitty%03d", 0);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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strcmp(info.name, ".") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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strcmp(info.name, "..") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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strcmp(info.name, path) => 0;
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lfs_dir_seek(&lfs, &dir, pos) => 0;
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sprintf(path, "kitty%03d", 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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lfs_dir_close(&lfs, &dir) => 0;
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lfs_unmount(&lfs) => 0;
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TEST
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echo "--- Large dir seek ---"
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scripts/test.py << TEST
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lfs_mount(&lfs, &cfg) => 0;
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lfs_dir_open(&lfs, &dir, "hello") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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strcmp(info.name, ".") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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strcmp(info.name, "..") => 0;
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lfs_soff_t pos;
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int i;
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for (i = 0; i < $MEDIUMSIZE; i++) {
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sprintf(path, "kitty%03d", 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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pos = lfs_dir_tell(&lfs, &dir);
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}
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pos >= 0 => 1;
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lfs_dir_seek(&lfs, &dir, pos) => 0;
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sprintf(path, "kitty%03d", 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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lfs_dir_rewind(&lfs, &dir) => 0;
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sprintf(path, "kitty%03d", 0);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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strcmp(info.name, ".") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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strcmp(info.name, "..") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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strcmp(info.name, path) => 0;
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lfs_dir_seek(&lfs, &dir, pos) => 0;
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sprintf(path, "kitty%03d", 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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lfs_dir_close(&lfs, &dir) => 0;
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lfs_unmount(&lfs) => 0;
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TEST
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echo "--- Simple file seek ---"
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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, "hello/kitty042", LFS_O_RDONLY) => 0;
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lfs_soff_t pos;
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lfs_size_t size = strlen("kittycatcat");
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for (int i = 0; i < $SMALLSIZE; i++) {
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "kittycatcat", size) => 0;
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pos = lfs_file_tell(&lfs, &file);
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}
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pos >= 0 => 1;
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lfs_file_seek(&lfs, &file, pos, LFS_SEEK_SET) => pos;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "kittycatcat", size) => 0;
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lfs_file_rewind(&lfs, &file) => 0;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "kittycatcat", size) => 0;
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lfs_file_seek(&lfs, &file, 0, LFS_SEEK_CUR) => size;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "kittycatcat", size) => 0;
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lfs_file_seek(&lfs, &file, size, LFS_SEEK_CUR) => 3*size;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "kittycatcat", size) => 0;
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lfs_file_seek(&lfs, &file, pos, LFS_SEEK_SET) => pos;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "kittycatcat", size) => 0;
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lfs_file_seek(&lfs, &file, -size, LFS_SEEK_CUR) => pos;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "kittycatcat", size) => 0;
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lfs_file_seek(&lfs, &file, -size, LFS_SEEK_END) >= 0 => 1;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "kittycatcat", size) => 0;
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size = lfs_file_size(&lfs, &file);
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lfs_file_seek(&lfs, &file, 0, LFS_SEEK_CUR) => size;
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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 "--- Large file seek ---"
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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, "hello/kitty042", LFS_O_RDONLY) => 0;
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lfs_soff_t pos;
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lfs_size_t size = strlen("kittycatcat");
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for (int i = 0; i < $MEDIUMSIZE; i++) {
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "kittycatcat", size) => 0;
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pos = lfs_file_tell(&lfs, &file);
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}
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pos >= 0 => 1;
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lfs_file_seek(&lfs, &file, pos, LFS_SEEK_SET) => pos;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "kittycatcat", size) => 0;
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lfs_file_rewind(&lfs, &file) => 0;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "kittycatcat", size) => 0;
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lfs_file_seek(&lfs, &file, 0, LFS_SEEK_CUR) => size;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "kittycatcat", size) => 0;
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lfs_file_seek(&lfs, &file, size, LFS_SEEK_CUR) => 3*size;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "kittycatcat", size) => 0;
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lfs_file_seek(&lfs, &file, pos, LFS_SEEK_SET) => pos;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "kittycatcat", size) => 0;
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lfs_file_seek(&lfs, &file, -size, LFS_SEEK_CUR) => pos;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "kittycatcat", size) => 0;
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lfs_file_seek(&lfs, &file, -size, LFS_SEEK_END) >= 0 => 1;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "kittycatcat", size) => 0;
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size = lfs_file_size(&lfs, &file);
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lfs_file_seek(&lfs, &file, 0, LFS_SEEK_CUR) => size;
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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 "--- Simple file seek 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, "hello/kitty042", LFS_O_RDWR) => 0;
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lfs_soff_t pos;
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lfs_size_t size = strlen("kittycatcat");
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for (int i = 0; i < $SMALLSIZE; i++) {
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "kittycatcat", size) => 0;
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pos = lfs_file_tell(&lfs, &file);
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}
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pos >= 0 => 1;
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memcpy(buffer, "doggodogdog", size);
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lfs_file_seek(&lfs, &file, pos, LFS_SEEK_SET) => pos;
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lfs_file_write(&lfs, &file, buffer, size) => size;
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lfs_file_seek(&lfs, &file, pos, LFS_SEEK_SET) => pos;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "doggodogdog", size) => 0;
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lfs_file_rewind(&lfs, &file) => 0;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "kittycatcat", size) => 0;
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lfs_file_seek(&lfs, &file, pos, LFS_SEEK_SET) => pos;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "doggodogdog", size) => 0;
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lfs_file_seek(&lfs, &file, -size, LFS_SEEK_END) >= 0 => 1;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "kittycatcat", size) => 0;
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size = lfs_file_size(&lfs, &file);
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lfs_file_seek(&lfs, &file, 0, LFS_SEEK_CUR) => size;
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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 "--- Large file seek 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, "hello/kitty042", LFS_O_RDWR) => 0;
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lfs_soff_t pos;
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lfs_size_t size = strlen("kittycatcat");
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for (int i = 0; i < $MEDIUMSIZE; i++) {
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lfs_file_read(&lfs, &file, buffer, size) => size;
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if (i != $SMALLSIZE) {
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memcmp(buffer, "kittycatcat", size) => 0;
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}
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pos = lfs_file_tell(&lfs, &file);
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}
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pos >= 0 => 1;
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memcpy(buffer, "doggodogdog", size);
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lfs_file_seek(&lfs, &file, pos, LFS_SEEK_SET) => pos;
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lfs_file_write(&lfs, &file, buffer, size) => size;
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lfs_file_seek(&lfs, &file, pos, LFS_SEEK_SET) => pos;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "doggodogdog", size) => 0;
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lfs_file_rewind(&lfs, &file) => 0;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "kittycatcat", size) => 0;
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lfs_file_seek(&lfs, &file, pos, LFS_SEEK_SET) => pos;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "doggodogdog", size) => 0;
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lfs_file_seek(&lfs, &file, -size, LFS_SEEK_END) >= 0 => 1;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "kittycatcat", size) => 0;
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size = lfs_file_size(&lfs, &file);
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lfs_file_seek(&lfs, &file, 0, LFS_SEEK_CUR) => size;
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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 "--- Boundary seek 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, "hello/kitty042", LFS_O_RDWR) => 0;
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lfs_size_t size = strlen("hedgehoghog");
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const lfs_soff_t offsets[] = {512, 1020, 513, 1021, 511, 1019};
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for (unsigned i = 0; i < sizeof(offsets) / sizeof(offsets[0]); i++) {
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lfs_soff_t off = offsets[i];
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memcpy(buffer, "hedgehoghog", size);
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lfs_file_seek(&lfs, &file, off, LFS_SEEK_SET) => off;
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lfs_file_write(&lfs, &file, buffer, size) => size;
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lfs_file_seek(&lfs, &file, off, LFS_SEEK_SET) => off;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "hedgehoghog", size) => 0;
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lfs_file_seek(&lfs, &file, 0, LFS_SEEK_SET) => 0;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "kittycatcat", size) => 0;
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lfs_file_sync(&lfs, &file) => 0;
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}
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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 "--- Out-of-bounds seek ---"
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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, "hello/kitty042", LFS_O_RDWR) => 0;
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lfs_size_t size = strlen("kittycatcat");
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lfs_file_size(&lfs, &file) => $LARGESIZE*size;
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lfs_file_seek(&lfs, &file, ($LARGESIZE+$SMALLSIZE)*size,
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LFS_SEEK_SET) => ($LARGESIZE+$SMALLSIZE)*size;
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lfs_file_read(&lfs, &file, buffer, size) => 0;
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memcpy(buffer, "porcupineee", size);
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lfs_file_write(&lfs, &file, buffer, size) => size;
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lfs_file_seek(&lfs, &file, ($LARGESIZE+$SMALLSIZE)*size,
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LFS_SEEK_SET) => ($LARGESIZE+$SMALLSIZE)*size;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "porcupineee", size) => 0;
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lfs_file_seek(&lfs, &file, $LARGESIZE*size,
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LFS_SEEK_SET) => $LARGESIZE*size;
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lfs_file_read(&lfs, &file, buffer, size) => size;
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memcmp(buffer, "\0\0\0\0\0\0\0\0\0\0\0", size) => 0;
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lfs_file_seek(&lfs, &file, -(($LARGESIZE+$SMALLSIZE)*size),
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LFS_SEEK_CUR) => LFS_ERR_INVAL;
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lfs_file_tell(&lfs, &file) => ($LARGESIZE+1)*size;
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lfs_file_seek(&lfs, &file, -(($LARGESIZE+2*$SMALLSIZE)*size),
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LFS_SEEK_END) => LFS_ERR_INVAL;
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lfs_file_tell(&lfs, &file) => ($LARGESIZE+1)*size;
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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 "--- Inline write and seek ---"
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for SIZE in $SMALLSIZE $MEDIUMSIZE $LARGESIZE
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do
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scripts/test.py << TEST
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lfs_mount(&lfs, &cfg) => 0;
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lfs_file_open(&lfs, &file, "hello/tinykitty$SIZE",
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LFS_O_RDWR | LFS_O_CREAT) => 0;
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int j = 0;
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int k = 0;
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memcpy(buffer, "abcdefghijklmnopqrstuvwxyz", 26);
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for (unsigned i = 0; i < $SIZE; i++) {
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lfs_file_write(&lfs, &file, &buffer[j++ % 26], 1) => 1;
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lfs_file_tell(&lfs, &file) => i+1;
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lfs_file_size(&lfs, &file) => i+1;
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}
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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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lfs_file_size(&lfs, &file) => $SIZE;
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for (unsigned i = 0; i < $SIZE; i++) {
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uint8_t c;
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lfs_file_read(&lfs, &file, &c, 1) => 1;
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c => buffer[k++ % 26];
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}
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lfs_file_sync(&lfs, &file) => 0;
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lfs_file_tell(&lfs, &file) => $SIZE;
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lfs_file_size(&lfs, &file) => $SIZE;
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lfs_file_seek(&lfs, &file, 0, LFS_SEEK_SET) => 0;
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for (unsigned i = 0; i < $SIZE; i++) {
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lfs_file_write(&lfs, &file, &buffer[j++ % 26], 1) => 1;
|
|
lfs_file_tell(&lfs, &file) => i+1;
|
|
lfs_file_size(&lfs, &file) => $SIZE;
|
|
lfs_file_sync(&lfs, &file) => 0;
|
|
lfs_file_tell(&lfs, &file) => i+1;
|
|
lfs_file_size(&lfs, &file) => $SIZE;
|
|
if (i < $SIZE-2) {
|
|
uint8_t c[3];
|
|
lfs_file_seek(&lfs, &file, -1, LFS_SEEK_CUR) => i;
|
|
lfs_file_read(&lfs, &file, &c, 3) => 3;
|
|
lfs_file_tell(&lfs, &file) => i+3;
|
|
lfs_file_size(&lfs, &file) => $SIZE;
|
|
lfs_file_seek(&lfs, &file, i+1, LFS_SEEK_SET) => i+1;
|
|
lfs_file_tell(&lfs, &file) => i+1;
|
|
lfs_file_size(&lfs, &file) => $SIZE;
|
|
}
|
|
}
|
|
|
|
lfs_file_seek(&lfs, &file, 0, LFS_SEEK_SET) => 0;
|
|
lfs_file_tell(&lfs, &file) => 0;
|
|
lfs_file_size(&lfs, &file) => $SIZE;
|
|
for (unsigned i = 0; i < $SIZE; i++) {
|
|
uint8_t c;
|
|
lfs_file_read(&lfs, &file, &c, 1) => 1;
|
|
c => buffer[k++ % 26];
|
|
}
|
|
|
|
lfs_file_sync(&lfs, &file) => 0;
|
|
lfs_file_tell(&lfs, &file) => $SIZE;
|
|
lfs_file_size(&lfs, &file) => $SIZE;
|
|
|
|
lfs_file_close(&lfs, &file) => 0;
|
|
lfs_unmount(&lfs) => 0;
|
|
TEST
|
|
done
|
|
|
|
echo "--- Root seek test ---"
|
|
./scripts/test.py << TEST
|
|
lfs_mount(&lfs, &cfg) => 0;
|
|
for (int i = 3; i < $MEDIUMSIZE; i++) {
|
|
sprintf(path, "hi%03d", i);
|
|
lfs_mkdir(&lfs, path) => 0;
|
|
}
|
|
|
|
lfs_dir_open(&lfs, &dir, "/") => 0;
|
|
for (int i = 0; i < $MEDIUMSIZE; i++) {
|
|
if (i == 0) {
|
|
sprintf(path, ".");
|
|
} else if (i == 1) {
|
|
sprintf(path, "..");
|
|
} else if (i == 2) {
|
|
sprintf(path, "hello");
|
|
} else {
|
|
sprintf(path, "hi%03d", i);
|
|
}
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
strcmp(path, info.name) => 0;
|
|
}
|
|
lfs_dir_read(&lfs, &dir, &info) => 0;
|
|
lfs_dir_close(&lfs, &dir) => 0;
|
|
|
|
for (int j = 0; j < $MEDIUMSIZE; j++) {
|
|
lfs_soff_t off = -1;
|
|
|
|
lfs_dir_open(&lfs, &dir, "/") => 0;
|
|
for (int i = 0; i < $MEDIUMSIZE; i++) {
|
|
if (i == 0) {
|
|
sprintf(path, ".");
|
|
} else if (i == 1) {
|
|
sprintf(path, "..");
|
|
} else if (i == 2) {
|
|
sprintf(path, "hello");
|
|
} else {
|
|
sprintf(path, "hi%03d", i);
|
|
}
|
|
|
|
if (i == j) {
|
|
off = lfs_dir_tell(&lfs, &dir);
|
|
off >= 0 => true;
|
|
}
|
|
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
strcmp(path, info.name) => 0;
|
|
}
|
|
lfs_dir_read(&lfs, &dir, &info) => 0;
|
|
lfs_dir_close(&lfs, &dir) => 0;
|
|
|
|
lfs_dir_open(&lfs, &dir, "/") => 0;
|
|
lfs_dir_seek(&lfs, &dir, off) => 0;
|
|
for (int i = j; i < $MEDIUMSIZE; i++) {
|
|
if (i == 0) {
|
|
sprintf(path, ".");
|
|
} else if (i == 1) {
|
|
sprintf(path, "..");
|
|
} else if (i == 2) {
|
|
sprintf(path, "hello");
|
|
} else {
|
|
sprintf(path, "hi%03d", i);
|
|
}
|
|
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
strcmp(path, info.name) => 0;
|
|
}
|
|
lfs_dir_read(&lfs, &dir, &info) => 0;
|
|
lfs_dir_close(&lfs, &dir) => 0;
|
|
}
|
|
|
|
lfs_unmount(&lfs) => 0;
|
|
TEST
|
|
|
|
scripts/results.py
|