mirror of
https://github.com/eledio-devices/thirdparty-littlefs.git
synced 2025-11-01 00:38:29 +01:00
c44427f9ec
As an embedded library, littlefs's configuration straddles two worlds.
In most cases the configuration is usually constant at build time, but
when integrated into OSs, the configuration needs to be dynamically
configurable.
To help with this, littlefs has a separate lfs_config struct that can be
placed into ROM when possible.
But you know what's better than ROM configuration? Truely inlinable
static configuration known at compile-time. In addition to avoiding the
RAM cost, compile-time configuration allows for additional compiler
optimizations, such as constexpr-elimination and removal of unused
code-paths.
So how to enable static configuration?
1. define LFS_STATICCFG
2. implement callbacks as global functions:
- lfs_read
- lfs_prog
- lfs_erase
- lfs_sync
2. define the now-required constants that configure littlefs:
- LFS_READ_SIZE
- LFS_PROG_SIZE
- LFS_BLOCK_SIZE
- LFS_BLOCK_COUNT
- LFS_BLOCK_CYCLES
- LFS_CACHE_SIZE
- LFS_LOOKAHEAD_SIZE
- LFS_READ_BUFFER (optional)
- LFS_PROG_BUFFER (optional)
- LFS_LOOKAHEAD_BUFFER (optional)
- LFS_NAME_MAX (optional)
- LFS_FILE_MAX (optional)
- LFS_ATTR_MAX (optional)
Note, there is a separate configuration for the file configuration, this
can be enabled/disabled independently of LFS_STATICCFG. You will likely
want to define this as well if you are looking for the smallest code
size.
In order to avoid a mess of #ifdefs, the internals of littlefs use a
simple macro that redirects to either the dynamic or static config at
compile time:
#ifdef LFS_STATICCFG
#define LFS_CFG_READ_SIZE(lfs) ((void)lfs, LFS_READ_SIZE)
#else
#define LFS_CFG_READ_SIZE(lfs) lfs->cfg->read_size
#endif
Unfortunately it does look like there still may be a lot of issues
related to warnings of comparisons against constants... If only C had
a way to ignore warnings on individual statements...
Original idea by apmorton
839 lines
27 KiB
TOML
839 lines
27 KiB
TOML
[[case]] # root
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code = '''
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lfs_formatcfg(&lfs, &cfg) => 0;
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lfs_mountcfg(&lfs, &cfg) => 0;
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lfs_dir_open(&lfs, &dir, "/") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, ".") == 0);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, "..") == 0);
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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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lfs_unmount(&lfs) => 0;
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'''
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[[case]] # many directory creation
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define.N = 'range(0, 100, 3)'
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code = '''
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lfs_formatcfg(&lfs, &cfg) => 0;
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lfs_mountcfg(&lfs, &cfg) => 0;
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for (int i = 0; i < N; i++) {
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sprintf(path, "dir%03d", i);
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lfs_mkdir(&lfs, path) => 0;
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}
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lfs_unmount(&lfs) => 0;
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lfs_mountcfg(&lfs, &cfg) => 0;
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lfs_dir_open(&lfs, &dir, "/") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, ".") == 0);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, "..") == 0);
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for (int i = 0; i < N; i++) {
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sprintf(path, "dir%03d", i);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, path) == 0);
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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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lfs_unmount(&lfs) => 0;
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'''
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[[case]] # many directory removal
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define.N = 'range(3, 100, 11)'
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code = '''
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lfs_formatcfg(&lfs, &cfg) => 0;
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lfs_mountcfg(&lfs, &cfg) => 0;
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for (int i = 0; i < N; i++) {
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sprintf(path, "removeme%03d", i);
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lfs_mkdir(&lfs, path) => 0;
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}
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lfs_unmount(&lfs) => 0;
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lfs_mountcfg(&lfs, &cfg) => 0;
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lfs_dir_open(&lfs, &dir, "/") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, ".") == 0);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, "..") == 0);
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for (int i = 0; i < N; i++) {
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sprintf(path, "removeme%03d", i);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, path) == 0);
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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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lfs_unmount(&lfs);
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lfs_mountcfg(&lfs, &cfg) => 0;
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for (int i = 0; i < N; i++) {
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sprintf(path, "removeme%03d", i);
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lfs_remove(&lfs, path) => 0;
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}
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lfs_unmount(&lfs);
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lfs_mountcfg(&lfs, &cfg) => 0;
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lfs_dir_open(&lfs, &dir, "/") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, ".") == 0);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, "..") == 0);
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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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lfs_unmount(&lfs) => 0;
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'''
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[[case]] # many directory rename
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define.N = 'range(3, 100, 11)'
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code = '''
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lfs_formatcfg(&lfs, &cfg) => 0;
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lfs_mountcfg(&lfs, &cfg) => 0;
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for (int i = 0; i < N; i++) {
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sprintf(path, "test%03d", i);
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lfs_mkdir(&lfs, path) => 0;
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}
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lfs_unmount(&lfs) => 0;
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lfs_mountcfg(&lfs, &cfg) => 0;
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lfs_dir_open(&lfs, &dir, "/") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, ".") == 0);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, "..") == 0);
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for (int i = 0; i < N; i++) {
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sprintf(path, "test%03d", i);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, path) == 0);
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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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lfs_unmount(&lfs);
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lfs_mountcfg(&lfs, &cfg) => 0;
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for (int i = 0; i < N; i++) {
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char oldpath[128];
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char newpath[128];
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sprintf(oldpath, "test%03d", i);
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sprintf(newpath, "tedd%03d", i);
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lfs_rename(&lfs, oldpath, newpath) => 0;
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}
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lfs_unmount(&lfs);
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lfs_mountcfg(&lfs, &cfg) => 0;
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lfs_dir_open(&lfs, &dir, "/") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, ".") == 0);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, "..") == 0);
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for (int i = 0; i < N; i++) {
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sprintf(path, "tedd%03d", i);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, path) == 0);
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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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lfs_unmount(&lfs);
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'''
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[[case]] # reentrant many directory creation/rename/removal
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define.N = [5, 11]
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reentrant = true
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code = '''
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err = lfs_mountcfg(&lfs, &cfg);
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if (err) {
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lfs_formatcfg(&lfs, &cfg) => 0;
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lfs_mountcfg(&lfs, &cfg) => 0;
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}
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for (int i = 0; i < N; i++) {
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sprintf(path, "hi%03d", i);
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err = lfs_mkdir(&lfs, path);
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assert(err == 0 || err == LFS_ERR_EXIST);
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}
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for (int i = 0; i < N; i++) {
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sprintf(path, "hello%03d", i);
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err = lfs_remove(&lfs, path);
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assert(err == 0 || err == LFS_ERR_NOENT);
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}
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lfs_dir_open(&lfs, &dir, "/") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, ".") == 0);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, "..") == 0);
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for (int i = 0; i < N; i++) {
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sprintf(path, "hi%03d", i);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, path) == 0);
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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 < N; i++) {
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char oldpath[128];
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char newpath[128];
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sprintf(oldpath, "hi%03d", i);
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sprintf(newpath, "hello%03d", i);
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// YES this can overwrite an existing newpath
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lfs_rename(&lfs, oldpath, newpath) => 0;
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}
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lfs_dir_open(&lfs, &dir, "/") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, ".") == 0);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, "..") == 0);
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for (int i = 0; i < N; i++) {
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sprintf(path, "hello%03d", i);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, path) == 0);
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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 < N; i++) {
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sprintf(path, "hello%03d", i);
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lfs_remove(&lfs, path) => 0;
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}
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lfs_dir_open(&lfs, &dir, "/") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, ".") == 0);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, "..") == 0);
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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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lfs_unmount(&lfs) => 0;
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'''
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[[case]] # file creation
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define.N = 'range(3, 100, 11)'
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code = '''
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lfs_formatcfg(&lfs, &cfg) => 0;
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lfs_mountcfg(&lfs, &cfg) => 0;
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for (int i = 0; i < N; i++) {
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sprintf(path, "file%03d", i);
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lfs_file_open(&lfs, &file, path,
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LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
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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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lfs_mountcfg(&lfs, &cfg) => 0;
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lfs_dir_open(&lfs, &dir, "/") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, ".") == 0);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, "..") == 0);
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for (int i = 0; i < N; i++) {
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sprintf(path, "file%03d", i);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_REG);
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assert(strcmp(info.name, path) == 0);
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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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lfs_unmount(&lfs);
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'''
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[[case]] # file removal
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define.N = 'range(0, 100, 3)'
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code = '''
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lfs_formatcfg(&lfs, &cfg) => 0;
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lfs_mountcfg(&lfs, &cfg) => 0;
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for (int i = 0; i < N; i++) {
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sprintf(path, "removeme%03d", i);
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lfs_file_open(&lfs, &file, path,
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LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
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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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lfs_mountcfg(&lfs, &cfg) => 0;
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lfs_dir_open(&lfs, &dir, "/") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, ".") == 0);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, "..") == 0);
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for (int i = 0; i < N; i++) {
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sprintf(path, "removeme%03d", i);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_REG);
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assert(strcmp(info.name, path) == 0);
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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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lfs_unmount(&lfs);
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lfs_mountcfg(&lfs, &cfg) => 0;
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for (int i = 0; i < N; i++) {
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sprintf(path, "removeme%03d", i);
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lfs_remove(&lfs, path) => 0;
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}
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lfs_unmount(&lfs);
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lfs_mountcfg(&lfs, &cfg) => 0;
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lfs_dir_open(&lfs, &dir, "/") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, ".") == 0);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, "..") == 0);
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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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lfs_unmount(&lfs) => 0;
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'''
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[[case]] # file rename
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define.N = 'range(0, 100, 3)'
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code = '''
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lfs_formatcfg(&lfs, &cfg) => 0;
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lfs_mountcfg(&lfs, &cfg) => 0;
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for (int i = 0; i < N; i++) {
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sprintf(path, "test%03d", i);
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lfs_file_open(&lfs, &file, path,
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LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
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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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lfs_mountcfg(&lfs, &cfg) => 0;
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lfs_dir_open(&lfs, &dir, "/") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, ".") == 0);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, "..") == 0);
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for (int i = 0; i < N; i++) {
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sprintf(path, "test%03d", i);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_REG);
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assert(strcmp(info.name, path) == 0);
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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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lfs_unmount(&lfs);
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lfs_mountcfg(&lfs, &cfg) => 0;
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for (int i = 0; i < N; i++) {
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char oldpath[128];
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char newpath[128];
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sprintf(oldpath, "test%03d", i);
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sprintf(newpath, "tedd%03d", i);
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lfs_rename(&lfs, oldpath, newpath) => 0;
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}
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lfs_unmount(&lfs);
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lfs_mountcfg(&lfs, &cfg) => 0;
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lfs_dir_open(&lfs, &dir, "/") => 0;
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, ".") == 0);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_DIR);
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assert(strcmp(info.name, "..") == 0);
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for (int i = 0; i < N; i++) {
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sprintf(path, "tedd%03d", i);
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lfs_dir_read(&lfs, &dir, &info) => 1;
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assert(info.type == LFS_TYPE_REG);
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assert(strcmp(info.name, path) == 0);
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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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lfs_unmount(&lfs);
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'''
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[[case]] # reentrant file creation/rename/removal
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|
define.N = [5, 25]
|
|
reentrant = true
|
|
code = '''
|
|
err = lfs_mountcfg(&lfs, &cfg);
|
|
if (err) {
|
|
lfs_formatcfg(&lfs, &cfg) => 0;
|
|
lfs_mountcfg(&lfs, &cfg) => 0;
|
|
}
|
|
|
|
for (int i = 0; i < N; i++) {
|
|
sprintf(path, "hi%03d", i);
|
|
lfs_file_open(&lfs, &file, path, LFS_O_CREAT | LFS_O_WRONLY) => 0;
|
|
lfs_file_close(&lfs, &file) => 0;
|
|
}
|
|
|
|
for (int i = 0; i < N; i++) {
|
|
sprintf(path, "hello%03d", i);
|
|
err = lfs_remove(&lfs, path);
|
|
assert(err == 0 || err == LFS_ERR_NOENT);
|
|
}
|
|
|
|
lfs_dir_open(&lfs, &dir, "/") => 0;
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(strcmp(info.name, ".") == 0);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(strcmp(info.name, "..") == 0);
|
|
for (int i = 0; i < N; i++) {
|
|
sprintf(path, "hi%03d", i);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(strcmp(info.name, path) == 0);
|
|
}
|
|
lfs_dir_read(&lfs, &dir, &info) => 0;
|
|
lfs_dir_close(&lfs, &dir) => 0;
|
|
|
|
for (int i = 0; i < N; i++) {
|
|
char oldpath[128];
|
|
char newpath[128];
|
|
sprintf(oldpath, "hi%03d", i);
|
|
sprintf(newpath, "hello%03d", i);
|
|
// YES this can overwrite an existing newpath
|
|
lfs_rename(&lfs, oldpath, newpath) => 0;
|
|
}
|
|
|
|
lfs_dir_open(&lfs, &dir, "/") => 0;
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(strcmp(info.name, ".") == 0);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(strcmp(info.name, "..") == 0);
|
|
for (int i = 0; i < N; i++) {
|
|
sprintf(path, "hello%03d", i);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(strcmp(info.name, path) == 0);
|
|
}
|
|
lfs_dir_read(&lfs, &dir, &info) => 0;
|
|
lfs_dir_close(&lfs, &dir) => 0;
|
|
|
|
for (int i = 0; i < N; i++) {
|
|
sprintf(path, "hello%03d", i);
|
|
lfs_remove(&lfs, path) => 0;
|
|
}
|
|
|
|
lfs_dir_open(&lfs, &dir, "/") => 0;
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(strcmp(info.name, ".") == 0);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(strcmp(info.name, "..") == 0);
|
|
lfs_dir_read(&lfs, &dir, &info) => 0;
|
|
lfs_dir_close(&lfs, &dir) => 0;
|
|
lfs_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
[[case]] # nested directories
|
|
code = '''
|
|
lfs_formatcfg(&lfs, &cfg) => 0;
|
|
lfs_mountcfg(&lfs, &cfg) => 0;
|
|
lfs_mkdir(&lfs, "potato") => 0;
|
|
lfs_file_open(&lfs, &file, "burito",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfs_file_close(&lfs, &file) => 0;
|
|
lfs_unmount(&lfs) => 0;
|
|
|
|
lfs_mountcfg(&lfs, &cfg) => 0;
|
|
lfs_mkdir(&lfs, "potato/baked") => 0;
|
|
lfs_mkdir(&lfs, "potato/sweet") => 0;
|
|
lfs_mkdir(&lfs, "potato/fried") => 0;
|
|
lfs_unmount(&lfs) => 0;
|
|
|
|
lfs_mountcfg(&lfs, &cfg) => 0;
|
|
lfs_dir_open(&lfs, &dir, "potato") => 0;
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
info.type => LFS_TYPE_DIR;
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
info.type => LFS_TYPE_DIR;
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, "baked") == 0);
|
|
info.type => LFS_TYPE_DIR;
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, "fried") == 0);
|
|
info.type => LFS_TYPE_DIR;
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, "sweet") == 0);
|
|
info.type => LFS_TYPE_DIR;
|
|
lfs_dir_read(&lfs, &dir, &info) => 0;
|
|
lfs_dir_close(&lfs, &dir) => 0;
|
|
lfs_unmount(&lfs) => 0;
|
|
|
|
// try removing?
|
|
lfs_mountcfg(&lfs, &cfg) => 0;
|
|
lfs_remove(&lfs, "potato") => LFS_ERR_NOTEMPTY;
|
|
lfs_unmount(&lfs) => 0;
|
|
|
|
// try renaming?
|
|
lfs_mountcfg(&lfs, &cfg) => 0;
|
|
lfs_rename(&lfs, "potato", "coldpotato") => 0;
|
|
lfs_unmount(&lfs) => 0;
|
|
|
|
lfs_mountcfg(&lfs, &cfg) => 0;
|
|
lfs_rename(&lfs, "coldpotato", "warmpotato") => 0;
|
|
lfs_rename(&lfs, "warmpotato", "hotpotato") => 0;
|
|
lfs_unmount(&lfs) => 0;
|
|
|
|
lfs_mountcfg(&lfs, &cfg) => 0;
|
|
lfs_remove(&lfs, "potato") => LFS_ERR_NOENT;
|
|
lfs_remove(&lfs, "coldpotato") => LFS_ERR_NOENT;
|
|
lfs_remove(&lfs, "warmpotato") => LFS_ERR_NOENT;
|
|
lfs_remove(&lfs, "hotpotato") => LFS_ERR_NOTEMPTY;
|
|
lfs_unmount(&lfs) => 0;
|
|
|
|
// try cross-directory renaming
|
|
lfs_mountcfg(&lfs, &cfg) => 0;
|
|
lfs_mkdir(&lfs, "coldpotato") => 0;
|
|
lfs_rename(&lfs, "hotpotato/baked", "coldpotato/baked") => 0;
|
|
lfs_rename(&lfs, "coldpotato", "hotpotato") => LFS_ERR_NOTEMPTY;
|
|
lfs_remove(&lfs, "coldpotato") => LFS_ERR_NOTEMPTY;
|
|
lfs_remove(&lfs, "hotpotato") => LFS_ERR_NOTEMPTY;
|
|
lfs_rename(&lfs, "hotpotato/fried", "coldpotato/fried") => 0;
|
|
lfs_rename(&lfs, "coldpotato", "hotpotato") => LFS_ERR_NOTEMPTY;
|
|
lfs_remove(&lfs, "coldpotato") => LFS_ERR_NOTEMPTY;
|
|
lfs_remove(&lfs, "hotpotato") => LFS_ERR_NOTEMPTY;
|
|
lfs_rename(&lfs, "hotpotato/sweet", "coldpotato/sweet") => 0;
|
|
lfs_rename(&lfs, "coldpotato", "hotpotato") => 0;
|
|
lfs_remove(&lfs, "coldpotato") => LFS_ERR_NOENT;
|
|
lfs_remove(&lfs, "hotpotato") => LFS_ERR_NOTEMPTY;
|
|
lfs_unmount(&lfs) => 0;
|
|
|
|
lfs_mountcfg(&lfs, &cfg) => 0;
|
|
lfs_dir_open(&lfs, &dir, "hotpotato") => 0;
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
info.type => LFS_TYPE_DIR;
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
info.type => LFS_TYPE_DIR;
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, "baked") == 0);
|
|
info.type => LFS_TYPE_DIR;
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, "fried") == 0);
|
|
info.type => LFS_TYPE_DIR;
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, "sweet") == 0);
|
|
info.type => LFS_TYPE_DIR;
|
|
lfs_dir_read(&lfs, &dir, &info) => 0;
|
|
lfs_dir_close(&lfs, &dir) => 0;
|
|
lfs_unmount(&lfs) => 0;
|
|
|
|
// final remove
|
|
lfs_mountcfg(&lfs, &cfg) => 0;
|
|
lfs_remove(&lfs, "hotpotato") => LFS_ERR_NOTEMPTY;
|
|
lfs_remove(&lfs, "hotpotato/baked") => 0;
|
|
lfs_remove(&lfs, "hotpotato") => LFS_ERR_NOTEMPTY;
|
|
lfs_remove(&lfs, "hotpotato/fried") => 0;
|
|
lfs_remove(&lfs, "hotpotato") => LFS_ERR_NOTEMPTY;
|
|
lfs_remove(&lfs, "hotpotato/sweet") => 0;
|
|
lfs_remove(&lfs, "hotpotato") => 0;
|
|
lfs_unmount(&lfs) => 0;
|
|
|
|
lfs_mountcfg(&lfs, &cfg) => 0;
|
|
lfs_dir_open(&lfs, &dir, "/") => 0;
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
info.type => LFS_TYPE_DIR;
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
info.type => LFS_TYPE_DIR;
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, "burito") == 0);
|
|
info.type => LFS_TYPE_REG;
|
|
lfs_dir_read(&lfs, &dir, &info) => 0;
|
|
lfs_dir_close(&lfs, &dir) => 0;
|
|
lfs_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
[[case]] # recursive remove
|
|
define.N = [10, 100]
|
|
code = '''
|
|
lfs_formatcfg(&lfs, &cfg) => 0;
|
|
lfs_mountcfg(&lfs, &cfg) => 0;
|
|
lfs_mkdir(&lfs, "prickly-pear") => 0;
|
|
for (int i = 0; i < N; i++) {
|
|
sprintf(path, "prickly-pear/cactus%03d", i);
|
|
lfs_mkdir(&lfs, path) => 0;
|
|
}
|
|
lfs_dir_open(&lfs, &dir, "prickly-pear") => 0;
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(strcmp(info.name, ".") == 0);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(strcmp(info.name, "..") == 0);
|
|
for (int i = 0; i < N; i++) {
|
|
sprintf(path, "cactus%03d", i);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(strcmp(info.name, path) == 0);
|
|
}
|
|
lfs_dir_read(&lfs, &dir, &info) => 0;
|
|
lfs_dir_close(&lfs, &dir) => 0;
|
|
lfs_unmount(&lfs);
|
|
|
|
lfs_mountcfg(&lfs, &cfg) => 0;
|
|
lfs_remove(&lfs, "prickly-pear") => LFS_ERR_NOTEMPTY;
|
|
|
|
lfs_dir_open(&lfs, &dir, "prickly-pear") => 0;
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(strcmp(info.name, ".") == 0);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(strcmp(info.name, "..") == 0);
|
|
for (int i = 0; i < N; i++) {
|
|
sprintf(path, "cactus%03d", i);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(strcmp(info.name, path) == 0);
|
|
sprintf(path, "prickly-pear/%s", info.name);
|
|
lfs_remove(&lfs, path) => 0;
|
|
}
|
|
lfs_dir_read(&lfs, &dir, &info) => 0;
|
|
lfs_dir_close(&lfs, &dir) => 0;
|
|
|
|
lfs_remove(&lfs, "prickly-pear") => 0;
|
|
lfs_remove(&lfs, "prickly-pear") => LFS_ERR_NOENT;
|
|
lfs_unmount(&lfs) => 0;
|
|
|
|
lfs_mountcfg(&lfs, &cfg) => 0;
|
|
lfs_remove(&lfs, "prickly-pear") => LFS_ERR_NOENT;
|
|
lfs_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
[[case]] # other error cases
|
|
code = '''
|
|
lfs_formatcfg(&lfs, &cfg) => 0;
|
|
lfs_mountcfg(&lfs, &cfg) => 0;
|
|
lfs_mkdir(&lfs, "potato") => 0;
|
|
lfs_file_open(&lfs, &file, "burito",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfs_file_close(&lfs, &file) => 0;
|
|
lfs_unmount(&lfs) => 0;
|
|
|
|
lfs_mountcfg(&lfs, &cfg) => 0;
|
|
|
|
lfs_mkdir(&lfs, "potato") => LFS_ERR_EXIST;
|
|
lfs_mkdir(&lfs, "burito") => LFS_ERR_EXIST;
|
|
lfs_file_open(&lfs, &file, "burito",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => LFS_ERR_EXIST;
|
|
lfs_file_open(&lfs, &file, "potato",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => LFS_ERR_EXIST;
|
|
lfs_dir_open(&lfs, &dir, "tomato") => LFS_ERR_NOENT;
|
|
lfs_dir_open(&lfs, &dir, "burito") => LFS_ERR_NOTDIR;
|
|
lfs_file_open(&lfs, &file, "tomato", LFS_O_RDONLY) => LFS_ERR_NOENT;
|
|
lfs_file_open(&lfs, &file, "potato", LFS_O_RDONLY) => LFS_ERR_ISDIR;
|
|
lfs_file_open(&lfs, &file, "tomato", LFS_O_WRONLY) => LFS_ERR_NOENT;
|
|
lfs_file_open(&lfs, &file, "potato", LFS_O_WRONLY) => LFS_ERR_ISDIR;
|
|
lfs_file_open(&lfs, &file, "potato",
|
|
LFS_O_WRONLY | LFS_O_CREAT) => LFS_ERR_ISDIR;
|
|
|
|
lfs_mkdir(&lfs, "/") => LFS_ERR_EXIST;
|
|
lfs_file_open(&lfs, &file, "/",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => LFS_ERR_EXIST;
|
|
lfs_file_open(&lfs, &file, "/", LFS_O_RDONLY) => LFS_ERR_ISDIR;
|
|
lfs_file_open(&lfs, &file, "/", LFS_O_WRONLY) => LFS_ERR_ISDIR;
|
|
lfs_file_open(&lfs, &file, "/",
|
|
LFS_O_WRONLY | LFS_O_CREAT) => LFS_ERR_ISDIR;
|
|
|
|
// check that errors did not corrupt directory
|
|
lfs_dir_open(&lfs, &dir, "/") => 0;
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(strcmp(info.name, ".") == 0);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(strcmp(info.name, "..") == 0);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(strcmp(info.name, "burito") == 0);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(strcmp(info.name, "potato") == 0);
|
|
lfs_dir_read(&lfs, &dir, &info) => 0;
|
|
lfs_dir_close(&lfs, &dir) => 0;
|
|
|
|
lfs_unmount(&lfs) => 0;
|
|
|
|
// or on disk
|
|
lfs_mountcfg(&lfs, &cfg) => 0;
|
|
lfs_dir_open(&lfs, &dir, "/") => 0;
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(strcmp(info.name, ".") == 0);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(strcmp(info.name, "..") == 0);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(strcmp(info.name, "burito") == 0);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(strcmp(info.name, "potato") == 0);
|
|
lfs_dir_read(&lfs, &dir, &info) => 0;
|
|
lfs_dir_close(&lfs, &dir) => 0;
|
|
lfs_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
[[case]] # directory seek
|
|
define.COUNT = [4, 128, 132]
|
|
code = '''
|
|
lfs_formatcfg(&lfs, &cfg) => 0;
|
|
lfs_mountcfg(&lfs, &cfg) => 0;
|
|
lfs_mkdir(&lfs, "hello") => 0;
|
|
for (int i = 0; i < COUNT; i++) {
|
|
sprintf(path, "hello/kitty%03d", i);
|
|
lfs_mkdir(&lfs, path) => 0;
|
|
}
|
|
lfs_unmount(&lfs) => 0;
|
|
|
|
for (int j = 2; j < COUNT; j++) {
|
|
lfs_mountcfg(&lfs, &cfg) => 0;
|
|
lfs_dir_open(&lfs, &dir, "hello") => 0;
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
|
|
lfs_soff_t pos;
|
|
for (int i = 0; i < j; i++) {
|
|
sprintf(path, "kitty%03d", i);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, path) == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
pos = lfs_dir_tell(&lfs, &dir);
|
|
assert(pos >= 0);
|
|
}
|
|
|
|
lfs_dir_seek(&lfs, &dir, pos) => 0;
|
|
sprintf(path, "kitty%03d", j);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, path) == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
|
|
lfs_dir_rewind(&lfs, &dir) => 0;
|
|
sprintf(path, "kitty%03d", 0);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, path) == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
|
|
lfs_dir_seek(&lfs, &dir, pos) => 0;
|
|
sprintf(path, "kitty%03d", j);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, path) == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
|
|
lfs_dir_close(&lfs, &dir) => 0;
|
|
lfs_unmount(&lfs) => 0;
|
|
}
|
|
'''
|
|
|
|
[[case]] # root seek
|
|
define.COUNT = [4, 128, 132]
|
|
code = '''
|
|
lfs_formatcfg(&lfs, &cfg) => 0;
|
|
lfs_mountcfg(&lfs, &cfg) => 0;
|
|
for (int i = 0; i < COUNT; i++) {
|
|
sprintf(path, "hi%03d", i);
|
|
lfs_mkdir(&lfs, path) => 0;
|
|
}
|
|
lfs_unmount(&lfs) => 0;
|
|
|
|
for (int j = 2; j < COUNT; j++) {
|
|
lfs_mountcfg(&lfs, &cfg) => 0;
|
|
lfs_dir_open(&lfs, &dir, "/") => 0;
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
|
|
lfs_soff_t pos;
|
|
for (int i = 0; i < j; i++) {
|
|
sprintf(path, "hi%03d", i);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, path) == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
pos = lfs_dir_tell(&lfs, &dir);
|
|
assert(pos >= 0);
|
|
}
|
|
|
|
lfs_dir_seek(&lfs, &dir, pos) => 0;
|
|
sprintf(path, "hi%03d", j);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, path) == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
|
|
lfs_dir_rewind(&lfs, &dir) => 0;
|
|
sprintf(path, "hi%03d", 0);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, path) == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
|
|
lfs_dir_seek(&lfs, &dir, pos) => 0;
|
|
sprintf(path, "hi%03d", j);
|
|
lfs_dir_read(&lfs, &dir, &info) => 1;
|
|
assert(strcmp(info.name, path) == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
|
|
lfs_dir_close(&lfs, &dir) => 0;
|
|
lfs_unmount(&lfs) => 0;
|
|
}
|
|
'''
|
|
|