hbase

heirloom base
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sigrelse.c (1426B)


      1 /*
      2  * Copyright (c) 2004 Gunnar Ritter
      3  *
      4  * This software is provided 'as-is', without any express or implied
      5  * warranty. In no event will the authors be held liable for any damages
      6  * arising from the use of this software.
      7  *
      8  * Permission is granted to anyone to use this software for any purpose,
      9  * including commercial applications, and to alter it and redistribute
     10  * it freely, subject to the following restrictions:
     11  *
     12  * 1. The origin of this software must not be misrepresented; you must not
     13  *    claim that you wrote the original software. If you use this software
     14  *    in a product, an acknowledgment in the product documentation would be
     15  *    appreciated but is not required.
     16  *
     17  * 2. Altered source versions must be plainly marked as such, and must not be
     18  *    misrepresented as being the original software.
     19  *
     20  * 3. This notice may not be removed or altered from any source distribution.
     21  */
     22 /*	Sccsid @(#)sigrelse.c	1.8 (gritter) 1/22/06	*/
     23 
     24 #if defined (__FreeBSD__) || defined (__dietlibc__) || defined (__NetBSD__) || \
     25 	defined (__OpenBSD__) || defined (__DragonFly__) || defined (__APPLE__)
     26 #include <signal.h>
     27 #include "sigset.h"
     28 
     29 int
     30 sigrelse(int sig)
     31 {
     32 	sigset_t	set, oset;
     33 
     34 	if (sig <= 0)
     35 		return -1;
     36 	sigemptyset(&set);
     37 	sigaddset(&set, sig);
     38 	return sigprocmask(SIG_UNBLOCK, &set, &oset);
     39 }
     40 #endif	/* __FreeBSD__ || __dietlibc__ || __NetBSD__ || __OpenBSD__ ||
     41 	__DragonFly__ || __APPLE__ */