1 files changed, 72 insertions, 0 deletions
diff --git a/libglusterfs/src/fd-lk.h b/libglusterfs/src/fd-lk.h
new file mode 100644
index 00000000000..3e419e14377
--- /dev/null
+++ b/libglusterfs/src/fd-lk.h
@@ -0,0 +1,72 @@
+/*
+  Copyright (c) 2011-2012 Gluster, Inc. <http://www.gluster.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_LK_H
+#define _FD_LK_H
+
+#include "fd.h"
+#include "locking.h"
+#include "list.h"
+#include "logging.h"
+#include "mem-pool.h"
+#include "mem-types.h"
+#include "glusterfs.h"
+
+#define get_lk_type(type)                                               \
+        type == F_UNLCK ? "F_UNLCK" : (type == F_RDLCK ? "F_RDLCK" : "F_WRLCK")
+
+#define get_lk_cmd(cmd)                                                 \
+        cmd == F_SETLKW ? "F_SETLKW" : (cmd == F_SETLK ? "F_SETLK" : "F_GETLK")
+
+struct _fd;
+
+struct fd_lk_ctx {
+        struct list_head lk_list;
+        int   ref;
+        gf_lock_t lock;
+};
+typedef struct fd_lk_ctx fd_lk_ctx_t;
+
+struct fd_lk_ctx_node {
+        int32_t            cmd;
+        struct gf_flock    user_flock;
+        off_t              fl_start;
+        off_t              fl_end;
+        short              fl_type;
+        struct list_head   next;
+};
+typedef struct fd_lk_ctx_node fd_lk_ctx_node_t;
+
+fd_lk_ctx_t *
+_fd_lk_ctx_ref (fd_lk_ctx_t *lk_ctx);
+
+fd_lk_ctx_t *
+fd_lk_ctx_ref (fd_lk_ctx_t *lk_ctx);
+
+fd_lk_ctx_t *
+fd_lk_ctx_create ();
+
+int
+fd_lk_insert_and_merge (struct _fd *lk_ctx, int32_t cmd,
+                        struct gf_flock *flock);
+
+int
+fd_lk_ctx_unref (fd_lk_ctx_t *lk_ctx);
+
+#endif /* _FD_LK_H */