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1 files changed, 111 insertions, 0 deletions

diff --git a/xlators/features/locks/src/locks.h b/xlators/features/locks/src/locks.h
new file mode 100644
index 00000000000..8ed7bb63f1c
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+++ b/xlators/features/locks/src/locks.h
@@ -0,0 +1,111 @@
+/*
+   Copyright (c) 2006, 2007, 2008 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 __POSIX_LOCKS_H__
+#define __POSIX_LOCKS_H__
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include "compat-errno.h"
+#include "transport.h"
+#include "stack.h"
+#include "call-stub.h"
+
+struct __pl_fd;
+
+struct __posix_lock {
+	struct list_head   list;
+
+	short              fl_type;
+	off_t              fl_start;
+	off_t              fl_end;
+
+	short              blocked;    /* waiting to acquire */
+	struct flock       user_flock; /* the flock supplied by the user */
+	xlator_t          *this;       /* required for blocked locks */
+	fd_t              *fd;
+
+	call_frame_t      *frame;
+
+	/* These two together serve to uniquely identify each process
+	   across nodes */
+
+	transport_t       *transport;     /* to identify client node */
+	pid_t              client_pid;    /* pid of client process */
+};
+typedef struct __posix_lock posix_lock_t;
+
+struct __pl_rw_req_t {
+	struct list_head      list;
+	call_stub_t          *stub;
+	posix_lock_t          region;
+};
+typedef struct __pl_rw_req_t pl_rw_req_t;
+
+
+struct __entry_lock {
+	struct list_head  inode_list;    /* list_head back to pl_inode_t */
+	struct list_head  blocked_locks; /* locks blocked due to this lock */
+
+	call_frame_t     *frame;
+	xlator_t         *this;
+	int               blocked;
+	
+	const char       *basename;
+	entrylk_type      type;
+	unsigned int      read_count;    /* number of read locks */
+	transport_t      *trans;
+};
+typedef struct __entry_lock pl_entry_lock_t;
+
+
+/* The "simulated" inode. This contains a list of all the locks associated 
+   with this file */
+
+struct __pl_inode {
+	pthread_mutex_t  mutex;
+
+	struct list_head dir_list;       /* list of entry locks */
+	struct list_head ext_list;       /* list of fcntl locks */
+	struct list_head int_list;       /* list of internal locks */
+	struct list_head rw_list;        /* list of waiting r/w requests */
+	int              mandatory;      /* if mandatory locking is enabled */
+};
+typedef struct __pl_inode pl_inode_t;
+
+#define DOMAIN_HEAD(pl_inode, dom) (dom == GF_LOCK_POSIX	\
+				    ? &pl_inode->ext_list	\
+				    : &pl_inode->int_list)
+
+
+struct __pl_fd {
+	gf_boolean_t nonblocking;       /* whether O_NONBLOCK has been set */
+};
+typedef struct __pl_fd pl_fd_t;
+
+
+typedef struct {
+	gf_boolean_t    mandatory;      /* if mandatory locking is enabled */
+} posix_locks_private_t;
+
+
+#endif /* __POSIX_LOCKS_H__ */