long uffs_space_total(const char *mount_point)
{
uffs_Device *dev = NULL;
long ret = -1L;
dev = uffs_GetDeviceFromMountPoint(mount_point);
if (dev) {
uffs_GlobalFsLockLock();
ret = (long) uffs_GetDeviceTotal(dev);
uffs_GlobalFsLockUnlock();
}
return ret;
}
int uffs_closedir(uffs_DIR *dirp)
{
CHK_DIR_LOCK(dirp, -1);
uffs_FindObjectClose(&dirp->f);
if (dirp->obj) {
uffs_CloseObject(dirp->obj);
uffs_PutObject(dirp->obj);
}
PutDirEntry(dirp);
uffs_GlobalFsLockUnlock();
return 0;
}
int uffs_format(const char *mount_point)
{
uffs_Device *dev = NULL;
URET ret = U_FAIL;
dev = uffs_GetDeviceFromMountPoint(mount_point);
if (dev) {
uffs_GlobalFsLockLock();
ret = uffs_FormatDevice(dev, U_TRUE);
uffs_GlobalFsLockUnlock();
}
return ret == U_SUCC ? 0 : -1;
}
int uffs_flush(int fd)
{
int ret;
uffs_Object *obj;
CHK_OBJ_LOCK(fd, obj, -1);
uffs_ClearObjectErr(obj);
ret = (uffs_FlushObject(obj) == U_SUCC) ? 0 : -1;
uffs_set_error(-uffs_GetObjectErr(obj));
uffs_GlobalFsLockUnlock();
return ret;
}
long uffs_tell(int fd)
{
long ret;
uffs_Object *obj;
CHK_OBJ_LOCK(fd, obj, -1);
uffs_ClearObjectErr(obj);
ret = (long) uffs_GetCurOffset(obj);
uffs_set_error(-uffs_GetObjectErr(obj));
uffs_GlobalFsLockUnlock();
return ret;
}
int uffs_eof(int fd)
{
int ret;
uffs_Object *obj;
CHK_OBJ_LOCK(fd, obj, -1);
uffs_ClearObjectErr(obj);
ret = uffs_EndOfFile(obj);
uffs_set_error(-uffs_GetObjectErr(obj));
uffs_GlobalFsLockUnlock();
return ret;
}
long uffs_seek(int fd, long offset, int origin)
{
int ret;
uffs_Object *obj;
CHK_OBJ_LOCK(fd, obj, -1);
uffs_ClearObjectErr(obj);
ret = uffs_SeekObject(obj, offset, origin);
uffs_set_error(-uffs_GetObjectErr(obj));
uffs_GlobalFsLockUnlock();
return ret;
}
int uffs_write(int fd, const void *data, int len)
{
int ret;
uffs_Object *obj;
CHK_OBJ_LOCK(fd, obj, -1);
uffs_ClearObjectErr(obj);
ret = uffs_WriteObject(obj, data, len);
uffs_set_error(-uffs_GetObjectErr(obj));
uffs_GlobalFsLockUnlock();
return ret;
}
long uffs_space_used(const char *mount_point)
{
uffs_Device *dev = NULL;
long ret = -1L;
uffs_GlobalFsLockLock();
dev = uffs_GetDeviceFromMountPoint(mount_point);
if (dev) {
ret = (long) uffs_GetDeviceUsed(dev);
uffs_PutDevice(dev);
}
uffs_GlobalFsLockUnlock();
return ret;
}
uffs_DIR * uffs_opendir(const char *path)
{
int err = 0;
uffs_DIR *ret = NULL;
uffs_DIR *dirp;
uffs_GlobalFsLockLock();
dirp = GetDirEntry();
if (dirp) {
dirp->obj = uffs_GetObject();
if (dirp->obj) {
if (uffs_OpenObject(dirp->obj, path, UO_RDONLY | UO_DIR) == U_SUCC) {
if (uffs_FindObjectOpen(&dirp->f, dirp->obj) == U_SUCC) {
ret = dirp;
goto ext;
}
else {
uffs_CloseObject(dirp->obj);
}
}
else {
err = uffs_GetObjectErr(dirp->obj);
}
uffs_PutObject(dirp->obj);
dirp->obj = NULL;
}
else {
err = UEMFILE;
}
PutDirEntry(dirp);
}
else {
err = UEMFILE;
}
ext:
uffs_set_error(-err);
uffs_GlobalFsLockUnlock();
return ret;
}
struct uffs_dirent * uffs_readdir(uffs_DIR *dirp)
{
struct uffs_dirent *ent = NULL;
CHK_DIR_LOCK(dirp, NULL);
if (uffs_FindObjectNext(&dirp->info, &dirp->f) == U_SUCC) {
ent = &dirp->dirent;
ent->d_ino = dirp->info.serial;
ent->d_namelen = dirp->info.info.name_len < (sizeof(ent->d_name) - 1) ? dirp->info.info.name_len : (sizeof(ent->d_name) - 1);
memcpy(ent->d_name, dirp->info.info.name, ent->d_namelen);
ent->d_name[ent->d_namelen] = '\0';
ent->d_off = dirp->f.pos;
ent->d_reclen = sizeof(struct uffs_dirent);
ent->d_type = dirp->info.info.attr;
}
uffs_GlobalFsLockUnlock();
return ent;
}
int uffs_close(int fd)
{
int ret = 0;
uffs_Object *obj;
CHK_OBJ_LOCK(fd, obj, -1);
uffs_ClearObjectErr(obj);
if (uffs_CloseObject(obj) == U_FAIL) {
uffs_set_error(-uffs_GetObjectErr(obj));
ret = -1;
}
else {
uffs_PutObject(obj);
ret = 0;
}
uffs_GlobalFsLockUnlock();
return ret;
}
int uffs_stat(const char *name, struct uffs_stat *buf)
{
uffs_Object *obj;
int ret = 0;
int err = 0;
URET result;
uffs_GlobalFsLockLock();
obj = uffs_GetObject();
if (obj) {
if (*name && name[strlen(name) - 1] == '/') {
result = uffs_OpenObject(obj, name, UO_RDONLY | UO_DIR);
}
else {
if ((result = uffs_OpenObject(obj, name, UO_RDONLY)) != U_SUCC) // try file
result = uffs_OpenObject(obj, name, UO_RDONLY | UO_DIR); // then try dir
}
if (result == U_SUCC) {
ret = do_stat(obj, buf);
uffs_CloseObject(obj);
}
else {
err = uffs_GetObjectErr(obj);
ret = -1;
}
uffs_PutObject(obj);
}
else {
err = UENOMEM;
ret = -1;
}
uffs_set_error(-err);
uffs_GlobalFsLockUnlock();
return ret;
}
URET uffs_FormatDevice(uffs_Device *dev, UBOOL force)
{
u16 i, slot;
URET ret = U_SUCC;
if (dev == NULL)
return U_FAIL;
if (dev->ops == NULL)
return U_FAIL;
uffs_GlobalFsLockLock();
ret = uffs_BufFlushAll(dev);
if (dev->ref_count > 1 && !force) {
uffs_Perror(UFFS_MSG_NORMAL,
"can't format when dev->ref_count = %d",
dev->ref_count);
ret = U_FAIL;
}
if (ret == U_SUCC && force) {
uffs_DirEntryBufPutAll(dev);
uffs_PutAllObjectBuf(dev);
uffs_FdSignatureIncrease();
}
if (ret == U_SUCC &&
uffs_BufIsAllFree(dev) == U_FALSE &&
!force)
{
uffs_Perror(UFFS_MSG_NORMAL, "some page still in used!");
ret = U_FAIL;
}
if (!force) {
for (slot = 0; ret == U_SUCC && slot < dev->cfg.dirty_groups; slot++) {
if (dev->buf.dirtyGroup[slot].count > 0) {
uffs_Perror(UFFS_MSG_SERIOUS, "there still have dirty pages!");
ret = U_FAIL;
}
}
}
if (ret == U_SUCC)
uffs_BufSetAllEmpty(dev);
if (ret == U_SUCC && uffs_BlockInfoIsAllFree(dev) == U_FALSE && !force) {
uffs_Perror(UFFS_MSG_NORMAL,
"there still have block info cache ? fail to format");
ret = U_FAIL;
}
if (ret == U_SUCC)
uffs_BlockInfoExpireAll(dev);
for (i = dev->par.start; ret == U_SUCC && i <= dev->par.end; i++) {
if (uffs_FlashIsBadBlock(dev, i) == U_FALSE) {
uffs_FlashEraseBlock(dev, i);
if (HAVE_BADBLOCK(dev))
uffs_BadBlockProcess(dev, NULL);
}
else {
#ifdef CONFIG_ENABLE_BAD_BLOCK_VERIFY
_ForceFormatAndCheckBlock(dev, i);
#endif
}
}
if (ret == U_SUCC && uffs_TreeRelease(dev) == U_FAIL) {
ret = U_FAIL;
}
if (ret == U_SUCC && uffs_TreeInit(dev) == U_FAIL) {
ret = U_FAIL;
}
if (ret == U_SUCC && uffs_BuildTree(dev) == U_FAIL) {
ret = U_FAIL;
}
uffs_GlobalFsLockUnlock();
return ret;
}
