#include <nginx.h>
+static void ngx_start_worker_processes(ngx_cycle_y *cycle, ngx_int_t n)
static void ngx_master_exit(ngx_cycle_t *cycle, ngx_master_ctx_t *ctx);
static void ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data);
#if (NGX_THREADS)
ngx_int_t ngx_process;
ngx_pid_t ngx_pid;
-ngx_pid_t ngx_new_binary;
-ngx_int_t ngx_inherited;
ngx_int_t ngx_threaded;
sig_atomic_t ngx_reap;
sig_atomic_t ngx_timer;
sig_atomic_t ngx_terminate;
sig_atomic_t ngx_quit;
-sig_atomic_t ngx_noaccept;
sig_atomic_t ngx_reconfigure;
sig_atomic_t ngx_reopen;
+
sig_atomic_t ngx_change_binary;
+ngx_pid_t ngx_new_binary;
+ngx_int_t ngx_inherited;
+sig_atomic_t ngx_noaccept;
+ngx_uint_t ngx_noaccepting;
+ngx_uint_t ngx_restart;
+
+
+void ngx_master_process_cycle(ngx_cycle_t *cycle, ngx_master_ctx_t *ctx)
+{
+ int signo;
+ sigset_t set;
+ struct timeval tv;
+ struct itimerval itv;
+ ngx_uint_t i, live;
+ ngx_msec_t delay;
+ ngx_core_conf_t *ccf;
+
+ sigemptyset(&set);
+ sigaddset(&set, SIGCHLD);
+ sigaddset(&set, SIGALRM);
+ sigaddset(&set, SIGINT);
+ sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
+ sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
+ sigaddset(&set, ngx_signal_value(NGX_NOACCEPT_SIGNAL));
+ sigaddset(&set, ngx_signal_value(NGX_TERMINATE_SIGNAL));
+ sigaddset(&set, ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
+ sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
+
+ if (sigprocmask(SIG_BLOCK, &set, NULL) == -1) {
+ ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
+ "sigprocmask() failed");
+ }
+
+ sigemptyset(&set);
+
+ ngx_setproctitle("master process");
+
+ ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
+
+ ngx_start_worker_processes(ccf->worker_processes);
+
+ ngx_new_binary = 0;
+ delay = 0;
+ signo = 0;
+ live = 1;
+
+ for ( ;; ) {
+ if (delay) {
+ delay *= 2;
+
+ ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
+ "temination cycle: %d", delay);
+
+ itv.it_interval.tv_sec = 0;
+ itv.it_interval.tv_usec = 0;
+ itv.it_value.tv_sec = delay / 1000;
+ itv.it_value.tv_usec = (delay % 1000 ) * 1000;
+
+ if (setitimer(ITIMER_REAL, &itv, NULL) == -1) {
+ ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
+ "setitimer() failed");
+ }
+ }
+
+ ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "sigsuspend");
+
+ sigsuspend(&set);
+
+ ngx_gettimeofday(&tv);
+ ngx_time_update(tv.tv_sec);
+
+ ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "wake up");
+
+ if (ngx_reap) {
+ ngx_reap = 0;
+ ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "reap childs");
+
+ live = 0;
+ for (i = 0; i < ngx_last_process; i++) {
+
+ ngx_log_debug5(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
+ "child: " PID_T_FMT " e:%d t:%d d:%d r:%d",
+ ngx_processes[i].pid,
+ ngx_processes[i].exiting,
+ ngx_processes[i].exited,
+ ngx_processes[i].detached,
+ ngx_processes[i].respawn);
+
+ if (ngx_processes[i].exited) {
+
+ if (ngx_processes[i].respawn
+ && !ngx_processes[i].exiting
+ && !ngx_terminate
+ && !ngx_quit)
+ {
+ if (ngx_spawn_process(cycle, ngx_processes[i].proc,
+ ngx_processes[i].data,
+ ngx_processes[i].name, i)
+ == NGX_ERROR)
+ {
+ ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
+ "can not respawn %s",
+ ngx_processes[i].name);
+ continue;
+ }
+
+ live = 1;
+
+ continue;
+ }
+
+ if (ngx_processes[i].pid == ngx_new_binary) {
+ ngx_new_binary = 0;
+ if (ngx_noaccepting) {
+ ngx_restart = 1;
+ ngx_noaccepting = 0;
+ }
+ }
+
+ if (i != --ngx_last_process) {
+ ngx_processes[i--] = ngx_processes[ngx_last_process];
+ }
+
+ } else if (ngx_processes[i].exiting
+ || !ngx_processes[i].detached)
+ {
+ live = 1;
+ }
+ }
+ }
+
+ if (!live && (ngx_terminate || ngx_quit)) {
+ ngx_master_exit(cycle, ctx);
+ }
+
+ if (ngx_terminate) {
+ if (delay == 0) {
+ delay = 50;
+ }
+
+ if (delay > 1000) {
+ signo = SIGKILL;
+ } else {
+ signo = ngx_signal_value(NGX_TERMINATE_SIGNAL);
+ }
+
+ } else if (ngx_quit) {
+ signo = ngx_signal_value(NGX_SHUTDOWN_SIGNAL);
+
+ } else if (ngx_timer) {
+ ngx_start_worker_processes(ccf->worker_processes);
+ signo = ngx_signal_value(NGX_SHUTDOWN_SIGNAL);
+
+ } else if (ngx_reconfigure) {
+ ngx_log_error(NGX_LOG_INFO, cycle->log, 0, "reconfiguring");
+
+ cycle = ngx_init_cycle(cycle);
+ if (cycle == NULL) {
+ cycle = (ngx_cycle_t *) ngx_cycle;
+ continue;
+ }
+
+ ngx_cycle = cycle;
+ ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
+ ngx_core_module);
+ ngx_start_worker_processes(ccf->worker_processes);
+
+ ngx_reconfigure = 0;
+ signo = ngx_signal_value(NGX_SHUTDOWN_SIGNAL);
+
+ } else if (ngx_restart) {
+ ngx_start_worker_processes(ccf->worker_processes);
+ ngx_restart = 0;
+
+ } else if (ngx_reopen) {
+ if (ngx_process == NGX_PROCESS_MASTER) {
+ signo = ngx_signal_value(NGX_REOPEN_SIGNAL);
+ ngx_reopen = 0;
+
+ } else { /* NGX_PROCESS_SINGLE */
+ ngx_reopen = 0;
+ }
+
+ ngx_log_error(NGX_LOG_INFO, cycle->log, 0,
+ "reopening logs");
+ ngx_reopen_files(cycle, ccf->user);
+
+ } else if (ngx_change_binary) {
+ ngx_change_binary = 0;
+ ngx_log_error(NGX_LOG_INFO, cycle->log, 0,
+ "changing binary");
+ ngx_new_binary = ngx_exec_new_binary(cycle, ctx->argv);
+
+ } else if (ngx_noaccept) {
+ signo = ngx_signal_value(NGX_SHUTDOWN_SIGNAL);
+ }
+ }
+
+ if (signo) {
+ for (i = 0; i < ngx_last_process; i++) {
+
+ if (ngx_processes[i].detached) {
+ continue;
+ }
+
+ ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0,
+ "kill (" PID_T_FMT ", %d)" ,
+ ngx_processes[i].pid, signo);
+
+ if (kill(ngx_processes[i].pid, signo) == -1) {
+ ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
+ "kill(%d, %d) failed",
+ ngx_processes[i].pid, signo);
+ continue;
+ }
+
+ if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
+ ngx_processes[i].exiting = 1;
+ }
+ }
+
+ signo = 0;
+ }
+
+
+
+
+
+
+
+
+
+
+ }
+}
-/* TODO: broken NGX_PROCESS_SINGLE */
void ngx_master_process_cycle(ngx_cycle_t *cycle, ngx_master_ctx_t *ctx)
{
} else if (ngx_timer) {
signo = ngx_signal_value(NGX_SHUTDOWN_SIGNAL);
- } else {
+ } else if (ngx_reconfigure) {
+ ngx_reconfigure = 0;
+ ngx_log_error(NGX_LOG_INFO, cycle->log, 0, "reconfiguring");
- if (ngx_noaccept) {
- signo = ngx_signal_value(NGX_SHUTDOWN_SIGNAL);
+ cycle = ngx_init_cycle(cycle);
+ if (cycle == NULL) {
+ cycle = (ngx_cycle_t *) ngx_cycle;
+ continue;
}
- if (ngx_change_binary) {
- ngx_change_binary = 0;
- ngx_log_error(NGX_LOG_INFO, cycle->log, 0,
- "changing binary");
- ngx_new_binary = ngx_exec_new_binary(cycle, ctx->argv);
- }
-
- if (ngx_reconfigure) {
- signo = ngx_signal_value(NGX_SHUTDOWN_SIGNAL);
- ngx_log_error(NGX_LOG_INFO, cycle->log, 0,
- "reconfiguring");
- }
+ ngx_cycle = cycle;
+ signo = ngx_signal_value(NGX_SHUTDOWN_SIGNAL);
- if (ngx_reopen) {
+ } else if (ngx_reopen) {
if (ngx_process == NGX_PROCESS_MASTER) {
signo = ngx_signal_value(NGX_REOPEN_SIGNAL);
ngx_reopen = 0;
ngx_log_error(NGX_LOG_INFO, cycle->log, 0,
"reopening logs");
ngx_reopen_files(cycle, ccf->user);
+
+ } else if (ngx_change_binary) {
+ ngx_change_binary = 0;
+ ngx_log_error(NGX_LOG_INFO, cycle->log, 0,
+ "changing binary");
+ ngx_new_binary = ngx_exec_new_binary(cycle, ctx->argv);
+
+ } else if (ngx_noaccept) {
+ signo = ngx_signal_value(NGX_SHUTDOWN_SIGNAL);
}
}
}
+static void ngx_start_worker_processes(ngx_cycle_y *cycle, ngx_int_t n)
+{
+ struct itimerval itv;
+
+ ngx_log_error(NGX_LOG_INFO, cycle->log, 0, "start worker processes");
+
+ while (n--) {
+ ngx_spawn_process(cycle, ngx_worker_process_cycle, NULL,
+ "worker process", NGX_PROCESS_RESPAWN);
+ }
+
+ /*
+ * we have to limit the maximum life time of the worker processes
+ * by 10 days because our millisecond event timer is limited
+ * by 24 days on 32-bit platforms
+ */
+
+ itv.it_interval.tv_sec = 0;
+ itv.it_interval.tv_usec = 0;
+ itv.it_value.tv_sec = 10 * 24 * 60 * 60;
+ itv.it_value.tv_usec = 0;
+
+ if (setitimer(ITIMER_REAL, &itv, NULL) == -1) {
+ ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
+ "setitimer() failed");
+ }
+}
+
+
static void ngx_master_exit(ngx_cycle_t *cycle, ngx_master_ctx_t *ctx)
{
ngx_delete_pidfile(cycle);
projects / nginx.git / commitdiff