s3fs-fuse/src/fdcache_pseudofd.h

66 lines
1.8 KiB
C
Raw Normal View History

/*
* s3fs - FUSE-based file system backed by Amazon S3
*
* Copyright(C) 2007 Randy Rizun <rrizun@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef S3FS_FDCACHE_PSEUDOFD_H_
#define S3FS_FDCACHE_PSEUDOFD_H_
//------------------------------------------------
// Typdefs
//------------------------------------------------
// List of pseudo fd in use
//
typedef std::vector<int> pseudofd_list_t;
//------------------------------------------------
// Class PseudoFdManager
//------------------------------------------------
class PseudoFdManager
{
private:
pseudofd_list_t pseudofd_list;
bool is_lock_init;
pthread_mutex_t pseudofd_list_lock; // protects pseudofd_list
private:
static PseudoFdManager& GetManager();
PseudoFdManager();
~PseudoFdManager();
int GetUnusedMinPseudoFd() const;
int CreatePseudoFd();
bool ReleasePseudoFd(int fd);
public:
static int Get();
static bool Release(int fd);
};
#endif // S3FS_FDCACHE_PSEUDOFD_H_
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: expandtab sw=4 ts=4 fdm=marker
* vim<600: expandtab sw=4 ts=4
*/