ReturnStatus
FileMetaDAO::delFile(const std::string &path, int *pDelta)
{
Channel* pDataChannel = ChannelManager::getInstance()->Mapping(m_BucketId);
NameSpace *DataNS = pDataChannel->m_DataNS;
int rt = 0;
Args fd;
ReturnStatus rs;
rs = isfile(path);
if (!rs.success()) {
return rs;
}
// read file size
fd = DataNS->Open(path.c_str(), O_RDONLY);
if (false == fd.valid) {
ERROR_LOG("path %s, open() error, %s", path.c_str(), strerror(errno));
return ReturnStatus(MU_FAILED, MU_UNKNOWN_ERROR);
}
FileAttr attr;
rt = DataNS->readn(&fd, &attr, sizeof(attr));
DataNS->Close(&fd);
if (sizeof(attr) != rt) {
ERROR_LOG("path %s, readn() error", path.c_str());
return ReturnStatus(MU_FAILED, MU_UNKNOWN_ERROR);
}
*pDelta = attr.m_Size;
// do delete action
rt = DataNS->Unlink(path.c_str());
if (-1 == rt) {
ERROR_LOG("path %s, unlink() error, %s.",
path.c_str(), strerror(errno));
return ReturnStatus(MU_FAILED, MU_UNKNOWN_ERROR);
}
return ReturnStatus(MU_SUCCESS);
}
ReturnStatus
FileMetaDAO::rmdirRecursive(const std::string &path, uint64_t *pDelta)
{
Channel* pDataChannel = ChannelManager::getInstance()->Mapping(m_BucketId);
NameSpace *DataNS = pDataChannel->m_DataNS;
int rt = 0;
ReturnStatus rs;
int error = 0;
std::string entryName;
std::string npath;
Args st;
rt = DataNS->OpenDir(path.c_str(), &st);
if (rt < 0) {
error = errno;
ERROR_LOG("path %s, opendir() error, %s.",
path.c_str(), strerror(errno));
if (ENOTDIR == error) {
ERROR_LOG("path %s, opendir() error, no directory");
return ReturnStatus(MU_FAILED, NOT_DIRECTORY);
} else if (ENOENT == error) {
return checkPrefix(path);
}
}
// delete its children
Dirent dirent;
while(DataNS->ReadDirNext(&st, &dirent)){
entryName = dirent.filename;
// omit "." and ".."
// omit user info file in user root dir
if (entryName == DENTRY_CURRENT_DIR
|| entryName == DENTRY_PARENT_DIR
|| entryName == USER_INFO_FILE_NAME) {
continue;
}
npath = path + PATH_SEPARATOR_STRING + entryName;
if (MU_DIRECTORY == dirent.filetype) {
// directory, call myself to delete it
rs = rmdirRecursive(npath, pDelta);
if (!rs.success()) {
ERROR_LOG("path %s, rmdirRecursive() error", npath.c_str());
return rs;
}
} else {
// add file size to changed user quota
addFileSizeToDelta(npath, pDelta);
// delete it directly
rt = DataNS->Unlink(npath.c_str());
if (-1 == rt) {
ERROR_LOG("path %s, unlink() error, %s.",
npath.c_str(), strerror(errno));
return ReturnStatus(MU_FAILED, MU_UNKNOWN_ERROR);
}
}
}
// delete path
// do not delete user root
if (path.substr(path.length() - 1) == ROOT_PATH) {
return ReturnStatus(MU_SUCCESS);
}
rt = DataNS->RmDir(path.c_str());
if (-1 == rt) {
ERROR_LOG("path %s, rmdir() error, %s.",
path.c_str(), strerror(errno));
return ReturnStatus(MU_FAILED, MU_UNKNOWN_ERROR);
}
return ReturnStatus(MU_SUCCESS);
}