Imported Upstream version 2.6.0

[debian/amanda] / common-src / amflock.h

diff --git a/common-src/amflock.h b/common-src/amflock.h
new file mode 100644 (file)
index 0000000..f9d33e1
--- /dev/null
+++ b/common-src/amflock.h
@@ -0,0 +1,53 @@
+/*
+ * Amanda, The Advanced Maryland Automatic Network Disk Archiver
+ * Copyright (c) 1991-1999 University of Maryland at College Park
+ * All Rights Reserved.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of U.M. not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  U.M. makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as is"
+ * without express or implied warranty.
+ *
+ * U.M. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL U.M.
+ * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Authors: the Amanda Development Team.  Its members are listed in a
+ * file named AUTHORS, in the root directory of this distribution.
+ */
+
+/* Moved from amanda.h and amflock.c by Dustin J. Mitchell <dustin@zmanda.com> */
+
+/* Public interface */
+
+/*
+ * Get a file lock (for read/write files).
+ */
+int amflock(int fd, char *resource);
+
+/*
+ * Get a file lock (for read-only files).
+ */
+int amroflock(int fd, char *resource);
+
+/*
+ * Release a file lock.
+ */
+int amfunlock(int fd, char *resource);
+
+/* Implementation interface */
+typedef int (*amflock_fn)(int, char *);
+typedef struct amflock_impl_s {
+    amflock_fn amflock_impl;
+    amflock_fn amroflock_impl;
+    amflock_fn amfunlock_impl;
+    char *impl_name;
+} amflock_impl_t;