1 /***********************************************************************
2 * *
3 * This software is part of the ast package *
4 * Copyright (c) 1985-2011 AT&T Intellectual Property *
5 * and is licensed under the *
6 * Eclipse Public License, Version 1.0 *
7 * by AT&T Intellectual Property *
8 * *
9 * A copy of the License is available at *
10 * http://www.eclipse.org/org/documents/epl-v10.html *
11 * (with md5 checksum b35adb5213ca9657e911e9befb180842) *
12 * *
13 * Information and Software Systems Research *
14 * AT&T Research *
15 * Florham Park NJ *
16 * *
17 * Glenn Fowler <glenn.s.fowler@gmail.com> *
18 * David Korn <dgkorn@gmail.com> *
19 * Phong Vo <phongvo@gmail.com> *
20 * *
21 ***********************************************************************/
22 #pragma prototyped
23
24 #include "stdhdr.h"
25
26 int
ftrylockfile(Sfio_t * f)27 ftrylockfile(Sfio_t* f)
28 {
29 STDIO_INT(f, "ftrylockfile", int, (Sfio_t*), (f))
30
31 return sfmutex(f, SFMTX_TRYLOCK);
32 }
33