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openharmony_kernel_liteos_m
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add littlefs code

This commit is contained in:
li_zan 2021-04-25 20:42:35 +08:00
parent 10b416e74f
commit ac46317e0f
1 changed files with 13 additions and 87 deletions
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100
components/fs/littlefs/lfs_api.c
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@ -128,56 +128,30 @@ int LfsMount(const char * source, const char * target, const char * fileSystemTy
{
int ret;
pthread_mutex_lock(&g_FslocalMutex);
g_fsOp.fsVops = &lfs_vops;
ret = lfs_mount(&g_lfs, (struct lfs_config*)data);
pthread_mutex_unlock(&g_FslocalMutex);
return ret;
}
int LfsUmount(const char * target)
{
int ret;
pthread_mutex_lock(&g_FslocalMutex);
ret = lfs_unmount(&g_lfs);
pthread_mutex_unlock(&g_FslocalMutex);
return ret;
return lfs_unmount(&g_lfs);
}
int LfsUnlink(const char * fileName)
{
int ret;
pthread_mutex_lock(&g_FslocalMutex);
ret = lfs_remove(&g_lfs, fileName);
pthread_mutex_unlock(&g_FslocalMutex);
return ret;
return lfs_remove(&g_lfs, fileName);
}
int LfsMkdir(const char * dirName, mode_t mode)
{
int ret;
pthread_mutex_lock(&g_FslocalMutex);
ret = lfs_mkdir(&g_lfs, dirName);
pthread_mutex_unlock(&g_FslocalMutex);
return ret;
return lfs_mkdir(&g_lfs, dirName);
}
int LfsRmdir(const char * dirName)
{
int ret;
pthread_mutex_lock(&g_FslocalMutex);
ret = lfs_remove(&g_lfs, dirName);
pthread_mutex_unlock(&g_FslocalMutex);
return ret;
return lfs_remove(&g_lfs, dirName);
}
DIR *LfsOpendir(const char * dirName)
@ -189,9 +163,7 @@ DIR *LfsOpendir(const char * dirName)
return NULL;
}
pthread_mutex_lock(&g_FslocalMutex);
ret = lfs_dir_open(&g_lfs, dir, dirName);
pthread_mutex_unlock(&g_FslocalMutex);
if (ret == 0) {
return (DIR *)dir;
@ -205,7 +177,6 @@ struct dirent *LfsReaddir(DIR * dir)
int ret;
struct lfs_info lfsInfo;
pthread_mutex_lock(&g_FslocalMutex);
ret = lfs_dir_read(&g_lfs, (lfs_dir_t *)dir, &lfsInfo);
if (ret == 0) {
(void)memcpy_s(g_nameValue.d_name, sizeof(g_nameValue.d_name), lfsInfo.name, strlen(lfsInfo.name) + 1);
@ -216,31 +187,22 @@ struct dirent *LfsReaddir(DIR * dir)
}
g_nameValue.d_reclen = lfsInfo.size;
pthread_mutex_unlock(&g_FslocalMutex);
return &g_nameValue;
}
pthread_mutex_unlock(&g_FslocalMutex);
return NULL;
}
int LfsClosedir(DIR * dir)
{
int ret;
pthread_mutex_lock(&g_FslocalMutex);
ret = lfs_dir_close(&g_lfs, (lfs_dir_t *)dir);
pthread_mutex_unlock(&g_FslocalMutex);
return ret;
return lfs_dir_close(&g_lfs, (lfs_dir_t *)dir);
}
int LfsOpen(const char * path, int openFlag, int mode)
{
int fd = INVALID_FD;
pthread_mutex_lock(&g_FslocalMutex);
LittleFsHandleStruct *fsHandle = GetFreeFd(&fd);
if (fd == INVALID_FD) {
goto errout;
@ -251,56 +213,36 @@ int LfsOpen(const char * path, int openFlag, int mode)
goto errout;
}
pthread_mutex_unlock(&g_FslocalMutex);
return fd;
errout:
pthread_mutex_unlock(&g_FslocalMutex);
return INVALID_FD;
}
int LfsRead(int fd, void * buf, unsigned int len)
{
int ret = VFS_ERROR;
if (fd >= LITTLE_FS_MAX_OPEN_FILES && fd < 0) {
return ret;
return VFS_ERROR;
}
pthread_mutex_lock(&g_FslocalMutex);
ret = lfs_file_read(&g_lfs, &(g_handle[fd].file), buf, len);
pthread_mutex_unlock(&g_FslocalMutex);
return ret;
return lfs_file_read(&g_lfs, &(g_handle[fd].file), buf, len);
}
int LfsWrite(int fd, const void * buf, unsigned int len)
{
int ret = VFS_ERROR;
if (fd >= LITTLE_FS_MAX_OPEN_FILES && fd < 0) {
return ret;
return VFS_ERROR;
}
pthread_mutex_lock(&g_FslocalMutex);
ret = lfs_file_write(&g_lfs, &(g_handle[fd].file), buf, len);
pthread_mutex_unlock(&g_FslocalMutex);
return ret;
return lfs_file_write(&g_lfs, &(g_handle[fd].file), buf, len);
}
int LfsSeek(int fd, off_t offset, int whence)
{
int ret = VFS_ERROR;
if (fd >= LITTLE_FS_MAX_OPEN_FILES && fd < 0) {
return ret;
return VFS_ERROR;
}
pthread_mutex_lock(&g_FslocalMutex);
ret = lfs_file_seek(&g_lfs, &(g_handle[fd].file), offset, whence);
pthread_mutex_unlock(&g_FslocalMutex);
return ret;
return lfs_file_seek(&g_lfs, &(g_handle[fd].file), offset, whence);
}
int LfsClose(int fd)
@ -311,23 +253,15 @@ int LfsClose(int fd)
return ret;
}
pthread_mutex_lock(&g_FslocalMutex);
ret = lfs_file_close(&g_lfs, &(g_handle[fd].file));
g_handle[fd].useFlag = 0;
pthread_mutex_unlock(&g_FslocalMutex);
return ret;
}
int LfsRename(const char * oldName, const char * newName)
{
int ret;
pthread_mutex_lock(&g_FslocalMutex);
ret = lfs_rename(&g_lfs, oldName, newName);
pthread_mutex_unlock(&g_FslocalMutex);
return ret;
return lfs_rename(&g_lfs, oldName, newName);
}
int LfsStat(const char * path, struct stat * buf)
@ -335,24 +269,16 @@ int LfsStat(const char * path, struct stat * buf)
int ret;
struct lfs_info info;
pthread_mutex_lock(&g_FslocalMutex);
ret = lfs_stat(&g_lfs, path, &info);
if (ret == 0) {
buf->st_size = info.size;
}
pthread_mutex_unlock(&g_FslocalMutex);
return ret;
}
int LfsFsync(int fd)
{
int ret;
pthread_mutex_lock(&g_FslocalMutex);
ret = lfs_file_sync(&g_lfs, &(g_handle[fd].file));
pthread_mutex_unlock(&g_FslocalMutex);
return ret;
return lfs_file_sync(&g_lfs, &(g_handle[fd].file));
}