344 lines
7.8 KiB
C
344 lines
7.8 KiB
C
/*
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* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "lfs_api.h"
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#include "iCunit.h"
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lfs_t g_lfs;
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FileDirInfo g_lfsDir[LFS_MAX_OPEN_DIRS];
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FileOpInfo g_fsOp;
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static LittleFsHandleStruct g_handle[LITTLE_FS_MAX_OPEN_FILES];
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struct dirent g_nameValue;
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struct fsmap_t g_fsmap[MAX_FILE_SYSTEM_LEN];
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static pthread_mutex_t g_FslocalMutex = PTHREAD_MUTEX_INITIALIZER;
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FileOpInfo GetFsOpInfo(void)
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{
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return g_fsOp;
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}
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LittleFsHandleStruct *GetFreeFd(int *fd)
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{
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for (int i = 0; i < LITTLE_FS_MAX_OPEN_FILES; i++) {
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if (g_handle[i].useFlag == 0) {
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*fd = i;
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g_handle[i].useFlag = 1;
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return &(g_handle[i]);
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}
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}
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*fd = INVALID_FD;
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return NULL;
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}
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lfs_dir_t *GetFreeDir()
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{
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for (int i = 0; i < LFS_MAX_OPEN_DIRS; i++) {
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if (g_lfsDir[i].useFlag == 0) {
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g_lfsDir[i].useFlag = 1;
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return &(g_lfsDir[i].dir);
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}
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}
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return NULL;
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}
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int InitMountInfo(const char *fileSystemType, const struct MountOps *fsMops)
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{
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int len = strlen(fileSystemType) + 1;
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for (int i = 0; i < MAX_FILE_SYSTEM_LEN; i++) {
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if (g_fsmap[i].fileSystemtype == NULL) {
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g_fsmap[i].fileSystemtype = (char*)malloc(len);
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memcpy_s(g_fsmap[i].fileSystemtype, len, fileSystemType, len);
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g_fsmap[i].fs_mops = fsMops;
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return VFS_OK;
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}
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}
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return VFS_ERROR;
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}
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const struct fsmap_t *mount_finds(const char*fileSystemtype)
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{
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struct fsmap_t *m = NULL;
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for (int i = 0; i < MAX_FILE_SYSTEM_LEN; i++) {
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m = &(g_fsmap[i]);
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if (m->fileSystemtype && strcmp(fileSystemtype, m->fileSystemtype) == 0) {
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return m;
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}
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}
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return (const struct fsmap_t *)NULL;
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}
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const struct MountOps g_fsMnt = {
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};
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struct FileOps lfs_vops = {
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};
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int LfsMount(const char * source, const char * target, const char * fileSystemType, unsigned long mountflags,
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const void * data)
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{
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int ret;
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pthread_mutex_lock(&g_FslocalMutex);
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g_fsOp.fsVops = &lfs_vops;
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ret = lfs_mount(&g_lfs, (struct lfs_config*)data);
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pthread_mutex_unlock(&g_FslocalMutex);
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return ret;
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}
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int LfsUmount(const char * target)
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{
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int ret;
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pthread_mutex_lock(&g_FslocalMutex);
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ret = lfs_unmount(&g_lfs);
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pthread_mutex_unlock(&g_FslocalMutex);
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return ret;
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}
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int LfsUnlink(const char * fileName)
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{
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int ret;
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pthread_mutex_lock(&g_FslocalMutex);
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ret = lfs_remove(&g_lfs, fileName);
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pthread_mutex_unlock(&g_FslocalMutex);
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return ret;
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}
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int LfsMkdir(const char * dirName, mode_t mode)
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{
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int ret;
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pthread_mutex_lock(&g_FslocalMutex);
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ret = lfs_mkdir(&g_lfs, dirName);
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pthread_mutex_unlock(&g_FslocalMutex);
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return ret;
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}
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int LfsRmdir(const char * dirName)
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{
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int ret;
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pthread_mutex_lock(&g_FslocalMutex);
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ret = lfs_remove(&g_lfs, dirName);
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pthread_mutex_unlock(&g_FslocalMutex);
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return ret;
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}
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DIR *LfsOpendir(const char * dirName)
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{
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int ret;
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lfs_dir_t *dir = GetFreeDir();
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if (dir == NULL) {
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return NULL;
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}
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pthread_mutex_lock(&g_FslocalMutex);
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ret = lfs_dir_open(&g_lfs, dir, dirName);
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pthread_mutex_unlock(&g_FslocalMutex);
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if (ret == 0) {
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return (DIR *)dir;
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} else {
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return NULL;
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}
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}
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struct direct *LfsReaddir(DIR * dir)
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{
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int ret;
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struct lfs_info lfsInfo;
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pthread_mutex_lock(&g_FslocalMutex);
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ret = lfs_dir_read(&g_lfs, (lfs_dir_t *)dir, &lfsInfo);
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if (ret == 0) {
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(void)memcpy_s(g_nameValue.d_name, sizeof(g_nameValue.d_name), lfsInfo.name, strlen(lfsInfo.name) + 1);
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if (lfsInfo.type == LFS_TYPE_DIR) {
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g_nameValue.d_type = DT_DIR;
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} else if (lfsInfo.type == LFS_TYPE_REG) {
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g_nameValue.d_type = DT_REG;
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}
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g_nameValue.d_reclen = lfsInfo.size;
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pthread_mutex_unlock(&g_FslocalMutex);
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return &g_nameValue;
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}
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pthread_mutex_unlock(&g_FslocalMutex);
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return NULL;
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}
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int LfsCloseDir(DIR * dir)
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{
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int ret;
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pthread_mutex_lock(&g_FslocalMutex);
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ret = lfs_remove(&g_lfs, dirName);
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pthread_mutex_unlock(&g_FslocalMutex);
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return ret;
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}
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int LfsOpen(const char * path, int openFlag, int mode)
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{
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int fd = INVALID_FD;
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pthread_mutex_lock(&g_FslocalMutex);
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LittleFsHandleStruct *fsHandle = GetFreeDir(&fd);
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if (fd == INVALID_FD) {
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goto errout;
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}
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int err = lfs_file_open(lfs_t * lfs, lfs_file_t * file, const char * path, int flags);
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if (err != 0) {
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goto errout;
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}
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pthread_mutex_unlock(&g_FslocalMutex);
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return fd;
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errout:
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pthread_mutex_unlock(&g_FslocalMutex);
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return INVALID_FD;
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}
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int LfsRead(int fd, void * buf, unsigned int len)
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{
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int ret = VFS_ERROR;
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if (fd >= LITTLE_FS_MAX_OPEN_FILES && fd < 0) {
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return ret;
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}
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pthread_mutex_lock(&g_FslocalMutex);
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ret = lfs_file_read(&g_lfs, &(g_handle[fd].file), buf, len);
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pthread_mutex_unlock(&g_FslocalMutex);
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return ret;
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}
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int LfsWrite(int fd, const void * buf, unsigned int len)
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{
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int ret = VFS_ERROR;
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if (fd >= LITTLE_FS_MAX_OPEN_FILES && fd < 0) {
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return ret;
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}
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pthread_mutex_lock(&g_FslocalMutex);
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ret = lfs_file_write(&g_lfs, &(g_handle[fd].file), buf, len);
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pthread_mutex_unlock(&g_FslocalMutex);
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return ret;
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}
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int LfsSeek(int fd, off_t offset, int whence)
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{
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int ret = VFS_ERROR;
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if (fd >= LITTLE_FS_MAX_OPEN_FILES && fd < 0) {
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return ret;
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}
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pthread_mutex_lock(&g_FslocalMutex);
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ret = lfs_file_seek(&g_lfs, &(g_handle[fd].file), offset, whence);
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pthread_mutex_unlock(&g_FslocalMutex);
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return ret;
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}
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int LfsClose(int fd)
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{
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int ret = VFS_ERROR;
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if (fd >= LITTLE_FS_MAX_OPEN_FILES && fd < 0) {
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return ret;
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}
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pthread_mutex_lock(&g_FslocalMutex);
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ret = lfs_file_close(&g_lfs, &(g_handle[fd].file));
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pthread_mutex_unlock(&g_FslocalMutex);
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return ret;
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}
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int LfsRename(const char * oldName, const char * newName)
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{
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int ret;
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pthread_mutex_lock(&g_FslocalMutex);
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ret = lfs_rename(oldName, newName);
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pthread_mutex_unlock(&g_FslocalMutex);
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return ret;
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}
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int LfsStat(const char * path, struct stat * buf)
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{
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int ret;
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struct lfs_info info;
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pthread_mutex_lock(&g_FslocalMutex);
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ret = lfs_stat(&g_lfs, path, &info);
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if (ret = 0) {
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buf->st_size = info.size;
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}
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pthread_mutex_unlock(&g_FslocalMutex);
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return ret;
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}
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int LfsFsync(int fd)
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{
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int ret;
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pthread_mutex_lock(&g_FslocalMutex);
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ret = lfs_file_sync(&g_lfs, &(g_handle[fd].file));
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pthread_mutex_unlock(&g_FslocalMutex);
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return ret;
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}
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