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Annotation of embedaddon/php/ext/pcntl/php_signal.c, revision 1.1.1.1

1.1       misho       1: /*
                      2:    +----------------------------------------------------------------------+
                      3:    | PHP Version 5                                                        |
                      4:    +----------------------------------------------------------------------+
                      5:    | Copyright (c) 1997-2012 The PHP Group                                |
                      6:    +----------------------------------------------------------------------+
                      7:    | This source file is subject to version 3.01 of the PHP license,      |
                      8:    | that is bundled with this package in the file LICENSE, and is        |
                      9:    | available through the world-wide-web at the following url:           |
                     10:    | http://www.php.net/license/3_01.txt                                  |
                     11:    | If you did not receive a copy of the PHP license and are unable to   |
                     12:    | obtain it through the world-wide-web, please send a note to          |
                     13:    | license@php.net so we can mail you a copy immediately.               |
                     14:    +----------------------------------------------------------------------+
                     15:    | Author: Jason Greene <jason@inetgurus.net>                           |
                     16:    +----------------------------------------------------------------------+
                     17: */
                     18: 
                     19: /* $Id: php_signal.c 321634 2012-01-01 13:15:04Z felipe $ */
                     20: 
                     21: #include "php_signal.h"
                     22: 
                     23: /* php_signal using sigaction is derrived from Advanced Programing
                     24:  * in the Unix Environment by W. Richard Stevens p 298. */
                     25: Sigfunc *php_signal4(int signo, Sigfunc *func, int restart, int mask_all)
                     26: {
                     27:        struct sigaction act,oact;
                     28:        act.sa_handler = func;
                     29:        if (mask_all) {
                     30:                sigfillset(&act.sa_mask);
                     31:        } else {
                     32:                sigemptyset(&act.sa_mask);
                     33:        }
                     34:        act.sa_flags = 0;
                     35:        if (signo == SIGALRM || (! restart)) {
                     36: #ifdef SA_INTERRUPT
                     37:                act.sa_flags |= SA_INTERRUPT; /* SunOS */
                     38: #endif
                     39:        } else {
                     40: #ifdef SA_RESTART
                     41:                act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */
                     42: #endif
                     43:        }
                     44:        if (sigaction(signo, &act, &oact) < 0)
                     45:                return SIG_ERR;
                     46:  
                     47:        return oact.sa_handler;
                     48: }
                     49: 
                     50: Sigfunc *php_signal(int signo, Sigfunc *func, int restart)
                     51: {
                     52:        return php_signal4(signo, func, restart, 0);
                     53: }
                     54: 
                     55: /*
                     56:  * Local variables:
                     57:  * tab-width: 4
                     58:  * c-basic-offset: 4
                     59:  * End:
                     60:  * vim600: noet sw=4 ts=4 fdm=marker
                     61:  * vim<600: noet sw=4 ts=4
                     62:  */