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comparison src/os/unix/ngx_process_cycle.c @ 3048:846d0e2fa483

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twice termination delay only after SIGALRM, otherwise many separate SIGCHLD and SIGIO signals quickly increase delay to the level when SIGKILL is sent
author Igor Sysoev <igor@sysoev.ru>
date Wed, 26 Aug 2009 15:12:28 +0000
parents d02b6123b4dc
children a7491af45540
comparison
equal deleted inserted replaced
3047:d02b6123b4dc 3048:846d0e2fa483
35 ngx_pid_t ngx_pid; 35 ngx_pid_t ngx_pid;
36 ngx_uint_t ngx_threaded; 36 ngx_uint_t ngx_threaded;
37 37
38 sig_atomic_t ngx_reap; 38 sig_atomic_t ngx_reap;
39 sig_atomic_t ngx_sigio; 39 sig_atomic_t ngx_sigio;
40 sig_atomic_t ngx_sigalrm;
40 sig_atomic_t ngx_terminate; 41 sig_atomic_t ngx_terminate;
41 sig_atomic_t ngx_quit; 42 sig_atomic_t ngx_quit;
42 sig_atomic_t ngx_debug_quit; 43 sig_atomic_t ngx_debug_quit;
43 ngx_uint_t ngx_exiting; 44 ngx_uint_t ngx_exiting;
44 sig_atomic_t ngx_reconfigure; 45 sig_atomic_t ngx_reconfigure;
140 delay = 0; 141 delay = 0;
141 live = 1; 142 live = 1;
142 143
143 for ( ;; ) { 144 for ( ;; ) {
144 if (delay) { 145 if (delay) {
145 delay *= 2; 146 if (ngx_sigalrm) {
147 delay *= 2;
148 ngx_sigalrm = 0;
149 }
146 150
147 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, 151 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
148 "termination cycle: %d", delay); 152 "termination cycle: %d", delay);
149 153
150 itv.it_interval.tv_sec = 0; 154 itv.it_interval.tv_sec = 0;