FdEntity* FdManager::ExistOpen(const char* path, int existfd)
{
FPRNINFO("[path=%s][fd=%d]", SAFESTRPTR(path), existfd);
// search by real path
FdEntity* ent = Open(path, -1, -1, false, false);
if(!ent && -1 != existfd){
// search from all fdentity because of not using cache.
AutoLock auto_lock(&FdManager::fd_manager_lock);
for(fdent_map_t::iterator iter = fent.begin(); iter != fent.end(); ++iter){
if((*iter).second && (*iter).second->GetFd() == existfd && (*iter).second->IsOpen()){
// found opend fd in map
if(0 == strcmp((*iter).second->GetPath(), path)){
ent = (*iter).second;
// open
if(-1 == ent->Open(-1, -1)){
return NULL;
}
}else{
// found fd, but it is used another file(file descriptor is recycled)
// so returns NULL.
}
break;
}
}
}
return ent;
}
void FdManager::Rename(const std::string &from, const std::string &to)
{
fdent_map_t::iterator iter = fent.find(from);
if(fent.end() != iter){
// found
FPRNINFO("[from=%s][to=%s]", from.c_str(), to.c_str());
FdEntity* ent = (*iter).second;
fent.erase(iter);
ent->SetPath(to);
fent[to] = ent;
}
}
FdEntity* FdManager::Open(const char* path, off_t size, time_t time, bool force_tmpfile, bool is_create)
{
FdEntity* ent;
FPRNINFO("[path=%s][size=%jd][time=%jd]", SAFESTRPTR(path), (intmax_t)size, (intmax_t)time);
if(!path || '\0' == path[0]){
return NULL;
}
AutoLock auto_lock(&FdManager::fd_manager_lock);
fdent_map_t::iterator iter = fent.find(string(path));
if(fent.end() != iter){
// found
ent = (*iter).second;
}else if(is_create){
// not found
string cache_path = "";
if(!force_tmpfile && !FdManager::MakeCachePath(path, cache_path, true)){
DPRN("failed to make cache path for object(%s).", path);
return NULL;
}
// make new obj
ent = new FdEntity(path, cache_path.c_str());
if(0 < cache_path.size()){
// using cache
fent[string(path)] = ent;
}else{
// not using cache, so the key of fdentity is set not really existsing path.
// (but not strictly unexisting path.)
//
// [NOTE]
// The reason why this process here, please look at the definition of the
// comments of NOCACHE_PATH_PREFIX_FORM symbol.
//
string tmppath("");
FdManager::MakeRandomTempPath(path, tmppath);
fent[tmppath] = ent;
}
}else{
return NULL;
}
// open
if(-1 == ent->Open(size, time)){
return NULL;
}
return ent;
}
FdEntity* FdManager::Open(const char* path, off_t size, time_t time, bool force_tmpfile, bool is_create)
{
FdEntity* ent;
FPRNINFO("[path=%s][size=%jd][time=%jd]", SAFESTRPTR(path), (intmax_t)size, (intmax_t)time);
if(!path || '\0' == path[0]){
return NULL;
}
AutoLock auto_lock(&FdManager::fd_manager_lock);
fdent_map_t::iterator iter = fent.find(string(path));
if(fent.end() != iter){
// found
ent = (*iter).second;
}else if(is_create){
// not found
string cache_path = "";
if(!force_tmpfile && !FdManager::MakeCachePath(path, cache_path, true)){
DPRN("failed to make cache path for object(%s).", path);
return NULL;
}
// make new obj
ent = new FdEntity(path, cache_path.c_str());
fent[string(path)] = ent;
}else{
return NULL;
}
// open
if(-1 == ent->Open(size, time)){
return NULL;
}
return ent;
}