add littlefs code

components/fs/littlefs/lfs_api.c

@@ -128,56 +128,30 @@ int LfsMount(const char * source, const char * target, const char * fileSystemTy
 	const void * data)
 {
 	int ret;
-
 
 	g_fsOp.fsVops = &lfs_vops;
-	ret = lfs_mount(&g_lfs, (struct lfs_config*)data);
 	ret = lfs_mount(&g_lfs, (struct lfs_config*)data);
 
 	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 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 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 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 lfs_remove(&g_lfs, dirName);
 }
 
@@ -189,9 +163,7 @@ DIR *LfsOpendir(const char * dirName)
 	if (dir == NULL) {
 		return NULL;
 	}
-
 
-	ret = lfs_dir_open(&g_lfs, dir, dirName);
 	ret = lfs_dir_open(&g_lfs, dir, dirName);
 
 	if (ret == 0) {
@@ -205,7 +177,6 @@ struct dirent *LfsReaddir(DIR * dir)
 {
 	int ret;
 	struct lfs_info lfsInfo;
-
 
 	ret = lfs_dir_read(&g_lfs, (lfs_dir_t *)dir, &lfsInfo);
 	if (ret == 0) {
@@ -216,31 +187,22 @@ struct dirent *LfsReaddir(DIR * dir)
 			g_nameValue.d_type = DT_REG;
 		}
 
-		g_nameValue.d_reclen = lfsInfo.size;
 		g_nameValue.d_reclen = lfsInfo.size;
 
 		return &g_nameValue;
 	}
-
 
 	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 lfs_dir_close(&g_lfs, (lfs_dir_t *)dir);
 }
 
 int LfsOpen(const char * path, int openFlag, int mode)
 {
 	int fd = INVALID_FD;
-
 
 	LittleFsHandleStruct *fsHandle = GetFreeFd(&fd);
 	if (fd == INVALID_FD) {
@@ -251,56 +213,36 @@ int LfsOpen(const char * path, int openFlag, int mode)
 	if (err != 0) {
 		goto errout;
 	}
-
 
 	return fd;
-errout:
 errout:
 	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) {
+	if (fd >= LITTLE_FS_MAX_OPEN_FILES && fd < 0) {
 		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 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) {
+	if (fd >= LITTLE_FS_MAX_OPEN_FILES && fd < 0) {
 		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 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) {
+	if (fd >= LITTLE_FS_MAX_OPEN_FILES && fd < 0) {
 		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 lfs_file_seek(&g_lfs, &(g_handle[fd].file), offset, whence);
 }
 
@@ -311,23 +253,15 @@ int LfsClose(int fd)
 	if (fd >= LITTLE_FS_MAX_OPEN_FILES && fd < 0) {
 		return ret;
 	}
-
 
 	ret = lfs_file_close(&g_lfs, &(g_handle[fd].file));
-	g_handle[fd].useFlag = 0;
 	g_handle[fd].useFlag = 0;
 
 	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 lfs_rename(&g_lfs, oldName, newName);
 }
 
@@ -335,24 +269,16 @@ int LfsStat(const char * path, struct stat * buf)
 {
 	int ret;
 	struct lfs_info info;
-
 
 	ret = lfs_stat(&g_lfs, path, &info);
 	if (ret == 0) {
 		buf->st_size = info.size;
-	}
 	}
 
 	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 lfs_file_sync(&g_lfs, &(g_handle[fd].file));
 }