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Diffstat (limited to 'libglusterfs/src/fd.h')
-rw-r--r-- | libglusterfs/src/fd.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/libglusterfs/src/fd.h b/libglusterfs/src/fd.h new file mode 100644 index 00000000000..8b8effdc335 --- /dev/null +++ b/libglusterfs/src/fd.h @@ -0,0 +1,107 @@ +/* + Copyright (c) 2007, 2008, 2009 Z RESEARCH, Inc. <http://www.zresearch.com> + This file is part of GlusterFS. + + GlusterFS 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 3 of the License, + or (at your option) any later version. + + GlusterFS 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, see + <http://www.gnu.org/licenses/>. +*/ + +#ifndef _FD_H +#define _FD_H + +#ifndef _CONFIG_H +#define _CONFIG_H +#include "config.h" +#endif + +#include "list.h" +#include <sys/types.h> +#include <unistd.h> +#include "glusterfs.h" + +struct _inode; +struct _dict; +struct _fd_ctx { + uint64_t key; + uint64_t value; +}; + +struct _fd { + pid_t pid; + int32_t flags; + int32_t refcount; + struct list_head inode_list; + struct _inode *inode; + struct _dict *ctx; + struct _fd_ctx *_ctx; +}; +typedef struct _fd fd_t; + +struct _fdtable { + int refcount; + uint32_t max_fds; + pthread_mutex_t lock; + fd_t **fds; +}; +typedef struct _fdtable fdtable_t; + +#include "logging.h" +#include "xlator.h" + +inline void +gf_fd_put (fdtable_t *fdtable, int32_t fd); + +fd_t * +gf_fd_fdptr_get (fdtable_t *fdtable, int64_t fd); + +fdtable_t * +gf_fd_fdtable_alloc (void); + +int32_t +gf_fd_unused_get (fdtable_t *fdtable, fd_t *fdptr); + +int32_t +gf_fd_unused_get2 (fdtable_t *fdtable, fd_t *fdptr, int32_t fd); + +void +gf_fd_fdtable_destroy (fdtable_t *fdtable); + +fd_t * +fd_ref (fd_t *fd); + +void +fd_unref (fd_t *fd); + +fd_t * +fd_create (struct _inode *inode, pid_t pid); + +fd_t * +fd_lookup (struct _inode *inode, pid_t pid); + +uint8_t +fd_list_empty (struct _inode *inode); + +fd_t * +fd_bind (fd_t *fd); + +int +fd_ctx_set (fd_t *fd, xlator_t *xlator, uint64_t value); + +int +fd_ctx_get (fd_t *fd, xlator_t *xlator, uint64_t *value); + +int +fd_ctx_del (fd_t *fd, xlator_t *xlator, uint64_t *value); + +#endif /* _FD_H */ |