imapext-2007

annotate src/osdep/unix/sig_psx.c @ 0:ada5e610ab86

imap-2007e
author yuuji@gentei.org
date Mon, 14 Sep 2009 15:17:45 +0900
parents
children
rev   line source
yuuji@0 1 /* ========================================================================
yuuji@0 2 * Copyright 1988-2006 University of Washington
yuuji@0 3 *
yuuji@0 4 * Licensed under the Apache License, Version 2.0 (the "License");
yuuji@0 5 * you may not use this file except in compliance with the License.
yuuji@0 6 * You may obtain a copy of the License at
yuuji@0 7 *
yuuji@0 8 * http://www.apache.org/licenses/LICENSE-2.0
yuuji@0 9 *
yuuji@0 10 *
yuuji@0 11 * ========================================================================
yuuji@0 12 */
yuuji@0 13
yuuji@0 14 /*
yuuji@0 15 * Program: POSIX Signals
yuuji@0 16 *
yuuji@0 17 * Author: Mark Crispin
yuuji@0 18 * Networks and Distributed Computing
yuuji@0 19 * Computing & Communications
yuuji@0 20 * University of Washington
yuuji@0 21 * Administration Building, AG-44
yuuji@0 22 * Seattle, WA 98195
yuuji@0 23 * Internet: MRC@CAC.Washington.EDU
yuuji@0 24 *
yuuji@0 25 * Date: 29 April 1997
yuuji@0 26 * Last Edited: 30 August 2006
yuuji@0 27 */
yuuji@0 28
yuuji@0 29 #include <signal.h>
yuuji@0 30 #include <string.h>
yuuji@0 31
yuuji@0 32 #ifndef SA_RESTART
yuuji@0 33 #define SA_RESTART 0
yuuji@0 34 #endif
yuuji@0 35
yuuji@0 36 /* Arm a signal
yuuji@0 37 * Accepts: signal number
yuuji@0 38 * desired action
yuuji@0 39 * Returns: old action
yuuji@0 40 */
yuuji@0 41
yuuji@0 42 void *arm_signal (int sig,void *action)
yuuji@0 43 {
yuuji@0 44 struct sigaction nact,oact;
yuuji@0 45 memset (&nact,0,sizeof (struct sigaction));
yuuji@0 46 sigemptyset (&nact.sa_mask); /* no signals blocked */
yuuji@0 47 nact.sa_handler = action; /* set signal handler */
yuuji@0 48 nact.sa_flags = SA_RESTART; /* needed on Linux, nice on SVR4 */
yuuji@0 49 sigaction (sig,&nact,&oact); /* do the signal action */
yuuji@0 50 return (void *) oact.sa_handler;
yuuji@0 51 }

UW-IMAP'd extensions by yuuji