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0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10 #include <ngx_channel.h>
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11
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12
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13 static void ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t n,
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50
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14 ngx_int_t type);
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16
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15 static void ngx_start_garbage_collector(ngx_cycle_t *cycle, ngx_int_t type);
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0
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16 static void ngx_signal_worker_processes(ngx_cycle_t *cycle, int signo);
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17 static ngx_uint_t ngx_reap_childs(ngx_cycle_t *cycle);
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122
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18 static void ngx_master_process_exit(ngx_cycle_t *cycle);
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0
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19 static void ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data);
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22
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20 static void ngx_worker_process_init(ngx_cycle_t *cycle, ngx_uint_t priority);
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122
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21 static void ngx_worker_process_exit(ngx_cycle_t *cycle);
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0
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22 static void ngx_channel_handler(ngx_event_t *ev);
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23 #if (NGX_THREADS)
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24 static void ngx_wakeup_worker_threads(ngx_cycle_t *cycle);
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112
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25 static ngx_thread_value_t ngx_worker_thread_cycle(void *data);
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0
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26 #endif
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50
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27 #if 0
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16
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28 static void ngx_garbage_collector_cycle(ngx_cycle_t *cycle, void *data);
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50
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29 #endif
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0
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30
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31
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32 ngx_uint_t ngx_process;
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33 ngx_pid_t ngx_pid;
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34 ngx_uint_t ngx_threaded;
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35
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36 sig_atomic_t ngx_reap;
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37 sig_atomic_t ngx_sigio;
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38 sig_atomic_t ngx_terminate;
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39 sig_atomic_t ngx_quit;
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26
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40 sig_atomic_t ngx_debug_quit;
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0
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41 ngx_uint_t ngx_exiting;
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42 sig_atomic_t ngx_reconfigure;
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43 sig_atomic_t ngx_reopen;
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44
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45 sig_atomic_t ngx_change_binary;
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46 ngx_pid_t ngx_new_binary;
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47 ngx_uint_t ngx_inherited;
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48 ngx_uint_t ngx_daemonized;
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49
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50 sig_atomic_t ngx_noaccept;
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51 ngx_uint_t ngx_noaccepting;
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52 ngx_uint_t ngx_restart;
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53
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54
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55 #if (NGX_THREADS)
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56 volatile ngx_thread_t ngx_threads[NGX_MAX_THREADS];
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57 ngx_int_t ngx_threads_n;
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58 #endif
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59
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60
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126
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61 u_long cpu_affinity;
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62 static u_char master_process[] = "master process";
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0
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63
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64
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50
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65 void
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66 ngx_master_process_cycle(ngx_cycle_t *cycle)
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0
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67 {
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68 char *title;
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69 u_char *p;
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70 size_t size;
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71 ngx_int_t i;
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80
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72 ngx_uint_t n;
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0
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73 sigset_t set;
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74 struct itimerval itv;
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75 ngx_uint_t live;
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76 ngx_msec_t delay;
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80
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77 ngx_listening_t *ls;
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0
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78 ngx_core_conf_t *ccf;
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79
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80 sigemptyset(&set);
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81 sigaddset(&set, SIGCHLD);
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82 sigaddset(&set, SIGALRM);
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83 sigaddset(&set, SIGIO);
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84 sigaddset(&set, SIGINT);
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85 sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
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86 sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
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87 sigaddset(&set, ngx_signal_value(NGX_NOACCEPT_SIGNAL));
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88 sigaddset(&set, ngx_signal_value(NGX_TERMINATE_SIGNAL));
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89 sigaddset(&set, ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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90 sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
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91
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92 if (sigprocmask(SIG_BLOCK, &set, NULL) == -1) {
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93 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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94 "sigprocmask() failed");
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95 }
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96
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97 sigemptyset(&set);
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98
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99
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100 size = sizeof(master_process);
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101
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2
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102 for (i = 0; i < ngx_argc; i++) {
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103 size += ngx_strlen(ngx_argv[i]) + 1;
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0
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104 }
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105
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106 title = ngx_palloc(cycle->pool, size);
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107
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108 p = ngx_cpymem(title, master_process, sizeof(master_process) - 1);
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2
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109 for (i = 0; i < ngx_argc; i++) {
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110 *p++ = ' ';
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2
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111 p = ngx_cpystrn(p, (u_char *) ngx_argv[i], size);
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112 }
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113
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114 ngx_setproctitle(title);
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115
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116
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117 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
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118
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119 ngx_start_worker_processes(cycle, ccf->worker_processes,
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120 NGX_PROCESS_RESPAWN);
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16
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121 ngx_start_garbage_collector(cycle, NGX_PROCESS_RESPAWN);
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0
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122
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123 ngx_new_binary = 0;
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124 delay = 0;
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125 live = 1;
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126
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127 for ( ;; ) {
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128 if (delay) {
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129 delay *= 2;
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130
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131 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
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132 "temination cycle: %d", delay);
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133
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134 itv.it_interval.tv_sec = 0;
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135 itv.it_interval.tv_usec = 0;
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136 itv.it_value.tv_sec = delay / 1000;
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137 itv.it_value.tv_usec = (delay % 1000 ) * 1000;
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138
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139 if (setitimer(ITIMER_REAL, &itv, NULL) == -1) {
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140 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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141 "setitimer() failed");
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142 }
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143 }
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144
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145 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "sigsuspend");
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146
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147 sigsuspend(&set);
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148
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112
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149 ngx_time_update(0, 0);
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0
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150
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151 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "wake up");
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152
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153 if (ngx_reap) {
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154 ngx_reap = 0;
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155 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "reap childs");
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156
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157 live = ngx_reap_childs(cycle);
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158 }
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159
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160 if (!live && (ngx_terminate || ngx_quit)) {
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122
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161 ngx_master_process_exit(cycle);
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0
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162 }
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163
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164 if (ngx_terminate) {
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165 if (delay == 0) {
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166 delay = 50;
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167 }
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168
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169 if (delay > 1000) {
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170 ngx_signal_worker_processes(cycle, SIGKILL);
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171 } else {
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172 ngx_signal_worker_processes(cycle,
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173 ngx_signal_value(NGX_TERMINATE_SIGNAL));
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174 }
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175
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176 continue;
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177 }
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178
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179 if (ngx_quit) {
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180 ngx_signal_worker_processes(cycle,
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181 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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80
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182
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183 ls = cycle->listening.elts;
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184 for (n = 0; n < cycle->listening.nelts; n++) {
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185 if (ngx_close_socket(ls[n].fd) == -1) {
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186 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_socket_errno,
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187 ngx_close_socket_n " %V failed",
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188 &ls[n].addr_text);
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189 }
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190 }
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191 cycle->listening.nelts = 0;
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192
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0
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193 continue;
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194 }
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195
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196 if (ngx_reconfigure) {
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197 ngx_reconfigure = 0;
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198
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199 if (ngx_new_binary) {
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200 ngx_start_worker_processes(cycle, ccf->worker_processes,
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201 NGX_PROCESS_RESPAWN);
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16
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202 ngx_start_garbage_collector(cycle, NGX_PROCESS_RESPAWN);
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0
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203 ngx_noaccepting = 0;
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204
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205 continue;
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206 }
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207
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26
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208 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
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0
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209
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210 cycle = ngx_init_cycle(cycle);
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211 if (cycle == NULL) {
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212 cycle = (ngx_cycle_t *) ngx_cycle;
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213 continue;
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214 }
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215
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216 ngx_cycle = cycle;
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217 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
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218 ngx_core_module);
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219 ngx_start_worker_processes(cycle, ccf->worker_processes,
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220 NGX_PROCESS_JUST_RESPAWN);
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16
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221 ngx_start_garbage_collector(cycle, NGX_PROCESS_JUST_RESPAWN);
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0
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222 live = 1;
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223 ngx_signal_worker_processes(cycle,
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224 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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225 }
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226
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227 if (ngx_restart) {
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228 ngx_restart = 0;
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229 ngx_start_worker_processes(cycle, ccf->worker_processes,
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230 NGX_PROCESS_RESPAWN);
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16
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231 ngx_start_garbage_collector(cycle, NGX_PROCESS_RESPAWN);
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0
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232 live = 1;
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233 }
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234
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235 if (ngx_reopen) {
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236 ngx_reopen = 0;
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26
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237 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
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0
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238 ngx_reopen_files(cycle, ccf->user);
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239 ngx_signal_worker_processes(cycle,
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240 ngx_signal_value(NGX_REOPEN_SIGNAL));
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241 }
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242
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243 if (ngx_change_binary) {
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244 ngx_change_binary = 0;
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26
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245 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "changing binary");
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2
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246 ngx_new_binary = ngx_exec_new_binary(cycle, ngx_argv);
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0
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247 }
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248
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249 if (ngx_noaccept) {
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250 ngx_noaccept = 0;
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251 ngx_noaccepting = 1;
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252 ngx_signal_worker_processes(cycle,
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253 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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254 }
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255 }
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256 }
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257
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258
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50
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259 void
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260 ngx_single_process_cycle(ngx_cycle_t *cycle)
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0
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261 {
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262 ngx_uint_t i;
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263
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264 ngx_init_temp_number();
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265
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266 for (i = 0; ngx_modules[i]; i++) {
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267 if (ngx_modules[i]->init_process) {
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268 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
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269 /* fatal */
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270 exit(2);
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271 }
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272 }
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273 }
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274
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275 for ( ;; ) {
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276 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
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277
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112
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278 ngx_process_events_and_timers(cycle);
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0
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279
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280 if (ngx_terminate || ngx_quit) {
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120
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281
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282 for (i = 0; ngx_modules[i]; i++) {
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283 if (ngx_modules[i]->exit_process) {
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284 ngx_modules[i]->exit_process(cycle);
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285 }
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286 }
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287
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122
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288 ngx_master_process_exit(cycle);
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0
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289 }
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290
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291 if (ngx_reconfigure) {
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292 ngx_reconfigure = 0;
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26
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293 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
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0
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294
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295 cycle = ngx_init_cycle(cycle);
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296 if (cycle == NULL) {
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297 cycle = (ngx_cycle_t *) ngx_cycle;
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298 continue;
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299 }
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300
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301 ngx_cycle = cycle;
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302 }
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303
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304 if (ngx_reopen) {
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305 ngx_reopen = 0;
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26
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306 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
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0
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307 ngx_reopen_files(cycle, (ngx_uid_t) -1);
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308 }
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309 }
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310 }
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311
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312
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50
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313 static void
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314 ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t n, ngx_int_t type)
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0
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315 {
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126
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316 ngx_int_t i, s;
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106
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317 ngx_channel_t ch;
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0
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318
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26
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319 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start worker processes");
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0
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320
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321 ch.command = NGX_CMD_OPEN_CHANNEL;
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322
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126
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323 for (i = 0; i < n; i++) {
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324
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325 cpu_affinity = ngx_get_cpu_affinity(i);
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326
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0
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327 ngx_spawn_process(cycle, ngx_worker_process_cycle, NULL,
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328 "worker process", type);
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329
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330 ch.pid = ngx_processes[ngx_process_slot].pid;
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331 ch.slot = ngx_process_slot;
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332 ch.fd = ngx_processes[ngx_process_slot].channel[0];
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333
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126
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334 for (s = 0; s < ngx_last_process; s++) {
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0
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335
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126
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336 if (s == ngx_process_slot
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337 || ngx_processes[s].pid == -1
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338 || ngx_processes[s].channel[0] == -1)
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0
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339 {
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340 continue;
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341 }
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342
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343 ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,
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10
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344 "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",
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345 ch.slot, ch.pid, ch.fd,
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126
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346 s, ngx_processes[s].pid,
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347 ngx_processes[s].channel[0]);
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0
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348
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349 /* TODO: NGX_AGAIN */
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350
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126
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351 ngx_write_channel(ngx_processes[s].channel[0],
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0
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352 &ch, sizeof(ngx_channel_t), cycle->log);
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353 }
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354 }
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355 }
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356
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357
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50
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358 static void
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359 ngx_start_garbage_collector(ngx_cycle_t *cycle, ngx_int_t type)
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16
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360 {
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50
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361 #if 0
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362 ngx_int_t i;
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363 ngx_channel_t ch;
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16
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364
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26
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365 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start garbage collector");
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16
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366
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367 ch.command = NGX_CMD_OPEN_CHANNEL;
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368
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369 ngx_spawn_process(cycle, ngx_garbage_collector_cycle, NULL,
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370 "garbage collector", type);
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371
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372 ch.pid = ngx_processes[ngx_process_slot].pid;
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373 ch.slot = ngx_process_slot;
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374 ch.fd = ngx_processes[ngx_process_slot].channel[0];
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375
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376 for (i = 0; i < ngx_last_process; i++) {
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377
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378 if (i == ngx_process_slot
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379 || ngx_processes[i].pid == -1
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380 || ngx_processes[i].channel[0] == -1)
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381 {
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|
|
382 continue;
|
|
|
383 }
|
|
|
384
|
|
|
385 ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
386 "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",
|
|
|
387 ch.slot, ch.pid, ch.fd,
|
|
|
388 i, ngx_processes[i].pid,
|
|
|
389 ngx_processes[i].channel[0]);
|
|
|
390
|
|
|
391 /* TODO: NGX_AGAIN */
|
|
|
392
|
|
|
393 ngx_write_channel(ngx_processes[i].channel[0],
|
|
|
394 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
|
395 }
|
|
50
|
396 #endif
|
|
16
|
397 }
|
|
|
398
|
|
|
399
|
|
50
|
400 static void
|
|
|
401 ngx_signal_worker_processes(ngx_cycle_t *cycle, int signo)
|
|
0
|
402 {
|
|
|
403 ngx_int_t i;
|
|
|
404 ngx_err_t err;
|
|
|
405 ngx_channel_t ch;
|
|
|
406
|
|
|
407 switch (signo) {
|
|
|
408
|
|
|
409 case ngx_signal_value(NGX_SHUTDOWN_SIGNAL):
|
|
|
410 ch.command = NGX_CMD_QUIT;
|
|
|
411 break;
|
|
|
412
|
|
|
413 case ngx_signal_value(NGX_TERMINATE_SIGNAL):
|
|
|
414 ch.command = NGX_CMD_TERMINATE;
|
|
|
415 break;
|
|
|
416
|
|
|
417 case ngx_signal_value(NGX_REOPEN_SIGNAL):
|
|
|
418 ch.command = NGX_CMD_REOPEN;
|
|
|
419 break;
|
|
|
420
|
|
|
421 default:
|
|
|
422 ch.command = 0;
|
|
|
423 }
|
|
|
424
|
|
|
425 ch.fd = -1;
|
|
|
426
|
|
|
427
|
|
|
428 for (i = 0; i < ngx_last_process; i++) {
|
|
|
429
|
|
|
430 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
431 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
|
0
|
432 i,
|
|
|
433 ngx_processes[i].pid,
|
|
|
434 ngx_processes[i].exiting,
|
|
|
435 ngx_processes[i].exited,
|
|
|
436 ngx_processes[i].detached,
|
|
|
437 ngx_processes[i].respawn,
|
|
|
438 ngx_processes[i].just_respawn);
|
|
|
439
|
|
|
440 if (ngx_processes[i].detached || ngx_processes[i].pid == -1) {
|
|
|
441 continue;
|
|
|
442 }
|
|
|
443
|
|
|
444 if (ngx_processes[i].just_respawn) {
|
|
|
445 ngx_processes[i].just_respawn = 0;
|
|
|
446 continue;
|
|
|
447 }
|
|
|
448
|
|
|
449 if (ngx_processes[i].exiting
|
|
|
450 && signo == ngx_signal_value(NGX_SHUTDOWN_SIGNAL))
|
|
|
451 {
|
|
|
452 continue;
|
|
|
453 }
|
|
|
454
|
|
|
455 if (ch.command) {
|
|
|
456 if (ngx_write_channel(ngx_processes[i].channel[0],
|
|
|
457 &ch, sizeof(ngx_channel_t), cycle->log) == NGX_OK)
|
|
|
458 {
|
|
|
459 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
|
460 ngx_processes[i].exiting = 1;
|
|
|
461 }
|
|
|
462
|
|
|
463 continue;
|
|
|
464 }
|
|
|
465 }
|
|
|
466
|
|
|
467 ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
468 "kill (%P, %d)" , ngx_processes[i].pid, signo);
|
|
0
|
469
|
|
|
470 if (kill(ngx_processes[i].pid, signo) == -1) {
|
|
|
471 err = ngx_errno;
|
|
|
472 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
10
|
473 "kill(%P, %d) failed",
|
|
0
|
474 ngx_processes[i].pid, signo);
|
|
|
475
|
|
|
476 if (err == NGX_ESRCH) {
|
|
|
477 ngx_processes[i].exited = 1;
|
|
|
478 ngx_processes[i].exiting = 0;
|
|
|
479 ngx_reap = 1;
|
|
|
480 }
|
|
|
481
|
|
|
482 continue;
|
|
|
483 }
|
|
|
484
|
|
|
485 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
|
486 ngx_processes[i].exiting = 1;
|
|
|
487 }
|
|
|
488 }
|
|
|
489 }
|
|
|
490
|
|
|
491
|
|
50
|
492 static ngx_uint_t
|
|
|
493 ngx_reap_childs(ngx_cycle_t *cycle)
|
|
0
|
494 {
|
|
92
|
495 ngx_int_t i, n;
|
|
|
496 ngx_uint_t live;
|
|
|
497 ngx_channel_t ch;
|
|
|
498 ngx_core_conf_t *ccf;
|
|
0
|
499
|
|
|
500 ch.command = NGX_CMD_CLOSE_CHANNEL;
|
|
|
501 ch.fd = -1;
|
|
|
502
|
|
|
503 live = 0;
|
|
|
504 for (i = 0; i < ngx_last_process; i++) {
|
|
|
505
|
|
|
506 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
507 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
|
0
|
508 i,
|
|
|
509 ngx_processes[i].pid,
|
|
|
510 ngx_processes[i].exiting,
|
|
|
511 ngx_processes[i].exited,
|
|
|
512 ngx_processes[i].detached,
|
|
|
513 ngx_processes[i].respawn,
|
|
|
514 ngx_processes[i].just_respawn);
|
|
|
515
|
|
|
516 if (ngx_processes[i].pid == -1) {
|
|
|
517 continue;
|
|
|
518 }
|
|
|
519
|
|
|
520 if (ngx_processes[i].exited) {
|
|
|
521
|
|
|
522 if (!ngx_processes[i].detached) {
|
|
|
523 ngx_close_channel(ngx_processes[i].channel, cycle->log);
|
|
|
524
|
|
|
525 ngx_processes[i].channel[0] = -1;
|
|
|
526 ngx_processes[i].channel[1] = -1;
|
|
|
527
|
|
|
528 ch.pid = ngx_processes[i].pid;
|
|
|
529 ch.slot = i;
|
|
|
530
|
|
|
531 for (n = 0; n < ngx_last_process; n++) {
|
|
|
532 if (ngx_processes[n].exited
|
|
|
533 || ngx_processes[n].pid == -1
|
|
|
534 || ngx_processes[n].channel[0] == -1)
|
|
|
535 {
|
|
|
536 continue;
|
|
|
537 }
|
|
|
538
|
|
|
539 ngx_log_debug3(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
540 "pass close channel s:%i pid:%P to:%P",
|
|
|
541 ch.slot, ch.pid, ngx_processes[n].pid);
|
|
0
|
542
|
|
|
543 /* TODO: NGX_AGAIN */
|
|
|
544
|
|
|
545 ngx_write_channel(ngx_processes[n].channel[0],
|
|
|
546 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
|
547 }
|
|
|
548 }
|
|
|
549
|
|
|
550 if (ngx_processes[i].respawn
|
|
|
551 && !ngx_processes[i].exiting
|
|
|
552 && !ngx_terminate
|
|
|
553 && !ngx_quit)
|
|
|
554 {
|
|
|
555 if (ngx_spawn_process(cycle, ngx_processes[i].proc,
|
|
|
556 ngx_processes[i].data,
|
|
|
557 ngx_processes[i].name, i)
|
|
92
|
558 == NGX_INVALID_PID)
|
|
0
|
559 {
|
|
|
560 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
561 "can not respawn %s", ngx_processes[i].name);
|
|
|
562 continue;
|
|
|
563 }
|
|
|
564
|
|
22
|
565
|
|
|
566 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
|
567 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
|
568 ch.slot = ngx_process_slot;
|
|
|
569 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
|
570
|
|
|
571 for (n = 0; n < ngx_last_process; n++) {
|
|
|
572
|
|
|
573 if (n == ngx_process_slot
|
|
|
574 || ngx_processes[n].pid == -1
|
|
|
575 || ngx_processes[n].channel[0] == -1)
|
|
|
576 {
|
|
|
577 continue;
|
|
|
578 }
|
|
|
579
|
|
|
580 ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
581 "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",
|
|
|
582 ch.slot, ch.pid, ch.fd,
|
|
|
583 n, ngx_processes[n].pid,
|
|
|
584 ngx_processes[n].channel[0]);
|
|
|
585
|
|
|
586 /* TODO: NGX_AGAIN */
|
|
|
587
|
|
|
588 ngx_write_channel(ngx_processes[n].channel[0],
|
|
|
589 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
|
590 }
|
|
|
591
|
|
0
|
592 live = 1;
|
|
|
593
|
|
|
594 continue;
|
|
|
595 }
|
|
|
596
|
|
|
597 if (ngx_processes[i].pid == ngx_new_binary) {
|
|
92
|
598
|
|
|
599 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
|
|
|
600 ngx_core_module);
|
|
|
601
|
|
|
602 if (ngx_rename_file((char *) ccf->oldpid.data,
|
|
|
603 (char *) ccf->pid.data)
|
|
|
604 != NGX_OK)
|
|
|
605 {
|
|
|
606 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
607 ngx_rename_file_n " %s back to %s failed "
|
|
|
608 "after the new binary process \"%s\" exited",
|
|
|
609 ccf->oldpid.data, ccf->pid.data, ngx_argv[0]);
|
|
|
610 }
|
|
|
611
|
|
0
|
612 ngx_new_binary = 0;
|
|
|
613 if (ngx_noaccepting) {
|
|
|
614 ngx_restart = 1;
|
|
|
615 ngx_noaccepting = 0;
|
|
|
616 }
|
|
|
617 }
|
|
|
618
|
|
|
619 if (i == ngx_last_process - 1) {
|
|
|
620 ngx_last_process--;
|
|
|
621
|
|
|
622 } else {
|
|
|
623 ngx_processes[i].pid = -1;
|
|
|
624 }
|
|
|
625
|
|
|
626 } else if (ngx_processes[i].exiting || !ngx_processes[i].detached) {
|
|
|
627 live = 1;
|
|
|
628 }
|
|
|
629 }
|
|
|
630
|
|
|
631 return live;
|
|
|
632 }
|
|
|
633
|
|
|
634
|
|
50
|
635 static void
|
|
122
|
636 ngx_master_process_exit(ngx_cycle_t *cycle)
|
|
0
|
637 {
|
|
120
|
638 ngx_uint_t i;
|
|
|
639
|
|
0
|
640 ngx_delete_pidfile(cycle);
|
|
|
641
|
|
26
|
642 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit");
|
|
0
|
643
|
|
120
|
644 for (i = 0; ngx_modules[i]; i++) {
|
|
|
645 if (ngx_modules[i]->exit_master) {
|
|
|
646 ngx_modules[i]->exit_master(cycle);
|
|
|
647 }
|
|
|
648 }
|
|
|
649
|
|
54
|
650 /*
|
|
|
651 * we do not destroy cycle->pool here because a signal handler
|
|
|
652 * that uses cycle->log can be called at this point
|
|
|
653 */
|
|
|
654
|
|
|
655 #if 0
|
|
0
|
656 ngx_destroy_pool(cycle->pool);
|
|
54
|
657 #endif
|
|
0
|
658
|
|
|
659 exit(0);
|
|
|
660 }
|
|
|
661
|
|
|
662
|
|
50
|
663 static void
|
|
|
664 ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data)
|
|
0
|
665 {
|
|
50
|
666 #if (NGX_THREADS)
|
|
18
|
667 ngx_int_t n;
|
|
|
668 ngx_err_t err;
|
|
|
669 ngx_core_conf_t *ccf;
|
|
50
|
670 #endif
|
|
18
|
671
|
|
22
|
672 ngx_worker_process_init(cycle, 1);
|
|
0
|
673
|
|
|
674 ngx_setproctitle("worker process");
|
|
|
675
|
|
|
676 #if (NGX_THREADS)
|
|
|
677
|
|
18
|
678 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
679
|
|
0
|
680 if (ngx_threads_n) {
|
|
|
681 if (ngx_init_threads(ngx_threads_n,
|
|
|
682 ccf->thread_stack_size, cycle) == NGX_ERROR)
|
|
|
683 {
|
|
|
684 /* fatal */
|
|
|
685 exit(2);
|
|
|
686 }
|
|
|
687
|
|
|
688 err = ngx_thread_key_create(&ngx_core_tls_key);
|
|
|
689 if (err != 0) {
|
|
|
690 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
691 ngx_thread_key_create_n " failed");
|
|
|
692 /* fatal */
|
|
|
693 exit(2);
|
|
|
694 }
|
|
|
695
|
|
|
696 for (n = 0; n < ngx_threads_n; n++) {
|
|
|
697
|
|
50
|
698 ngx_threads[n].cv = ngx_cond_init(cycle->log);
|
|
|
699
|
|
|
700 if (ngx_threads[n].cv == NULL) {
|
|
0
|
701 /* fatal */
|
|
|
702 exit(2);
|
|
|
703 }
|
|
|
704
|
|
|
705 if (ngx_create_thread((ngx_tid_t *) &ngx_threads[n].tid,
|
|
|
706 ngx_worker_thread_cycle,
|
|
|
707 (void *) &ngx_threads[n], cycle->log) != 0)
|
|
|
708 {
|
|
|
709 /* fatal */
|
|
|
710 exit(2);
|
|
|
711 }
|
|
|
712 }
|
|
|
713 }
|
|
|
714
|
|
|
715 #endif
|
|
|
716
|
|
|
717 for ( ;; ) {
|
|
|
718 if (ngx_exiting
|
|
108
|
719 && ngx_event_timer_rbtree.root == ngx_event_timer_rbtree.sentinel)
|
|
0
|
720 {
|
|
26
|
721 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
0
|
722
|
|
122
|
723 ngx_worker_process_exit(cycle);
|
|
0
|
724 }
|
|
|
725
|
|
|
726 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
|
|
|
727
|
|
112
|
728 ngx_process_events_and_timers(cycle);
|
|
0
|
729
|
|
|
730 if (ngx_terminate) {
|
|
26
|
731 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
0
|
732
|
|
122
|
733 ngx_worker_process_exit(cycle);
|
|
0
|
734 }
|
|
|
735
|
|
|
736 if (ngx_quit) {
|
|
|
737 ngx_quit = 0;
|
|
26
|
738 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
0
|
739 "gracefully shutting down");
|
|
|
740 ngx_setproctitle("worker process is shutting down");
|
|
|
741
|
|
|
742 if (!ngx_exiting) {
|
|
|
743 ngx_close_listening_sockets(cycle);
|
|
|
744 ngx_exiting = 1;
|
|
|
745 }
|
|
|
746 }
|
|
|
747
|
|
|
748 if (ngx_reopen) {
|
|
|
749 ngx_reopen = 0;
|
|
26
|
750 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
|
0
|
751 ngx_reopen_files(cycle, -1);
|
|
|
752 }
|
|
|
753 }
|
|
|
754 }
|
|
|
755
|
|
|
756
|
|
50
|
757 static void
|
|
|
758 ngx_worker_process_init(ngx_cycle_t *cycle, ngx_uint_t priority)
|
|
16
|
759 {
|
|
278
|
760 sigset_t set;
|
|
|
761 ngx_int_t n;
|
|
|
762 ngx_uint_t i;
|
|
|
763 struct rlimit rlmt;
|
|
|
764 ngx_core_conf_t *ccf;
|
|
|
765 ngx_listening_t *ls;
|
|
16
|
766
|
|
|
767 ngx_process = NGX_PROCESS_WORKER;
|
|
|
768
|
|
278
|
769 if (ngx_set_environment(cycle, NULL) == NULL) {
|
|
|
770 /* fatal */
|
|
|
771 exit(2);
|
|
|
772 }
|
|
|
773
|
|
16
|
774 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
775
|
|
|
776 if (geteuid() == 0) {
|
|
22
|
777 if (priority && ccf->priority != 0) {
|
|
|
778 if (setpriority(PRIO_PROCESS, 0, ccf->priority) == -1) {
|
|
|
779 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
780 "setpriority(%d) failed", ccf->priority);
|
|
|
781 }
|
|
|
782 }
|
|
|
783
|
|
92
|
784 if (ccf->rlimit_nofile != NGX_CONF_UNSET) {
|
|
|
785 rlmt.rlim_cur = (rlim_t) ccf->rlimit_nofile;
|
|
|
786 rlmt.rlim_max = (rlim_t) ccf->rlimit_nofile;
|
|
|
787
|
|
|
788 if (setrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
|
|
|
789 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
790 "setrlimit(RLIMIT_NOFILE, %i) failed",
|
|
|
791 ccf->rlimit_nofile);
|
|
|
792 }
|
|
|
793 }
|
|
|
794
|
|
270
|
795 if (ccf->rlimit_core != NGX_CONF_UNSET_SIZE) {
|
|
138
|
796 rlmt.rlim_cur = (rlim_t) ccf->rlimit_core;
|
|
|
797 rlmt.rlim_max = (rlim_t) ccf->rlimit_core;
|
|
|
798
|
|
|
799 if (setrlimit(RLIMIT_CORE, &rlmt) == -1) {
|
|
|
800 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
801 "setrlimit(RLIMIT_CORE, %i) failed",
|
|
|
802 ccf->rlimit_core);
|
|
|
803 }
|
|
|
804 }
|
|
|
805
|
|
92
|
806 #ifdef RLIMIT_SIGPENDING
|
|
|
807 if (ccf->rlimit_sigpending != NGX_CONF_UNSET) {
|
|
|
808 rlmt.rlim_cur = (rlim_t) ccf->rlimit_sigpending;
|
|
|
809 rlmt.rlim_max = (rlim_t) ccf->rlimit_sigpending;
|
|
|
810
|
|
|
811 if (setrlimit(RLIMIT_SIGPENDING, &rlmt) == -1) {
|
|
|
812 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
813 "setrlimit(RLIMIT_SIGPENDING, %i) failed",
|
|
|
814 ccf->rlimit_sigpending);
|
|
|
815 }
|
|
|
816 }
|
|
|
817 #endif
|
|
|
818
|
|
16
|
819 if (setgid(ccf->group) == -1) {
|
|
|
820 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
821 "setgid(%d) failed", ccf->group);
|
|
|
822 /* fatal */
|
|
|
823 exit(2);
|
|
|
824 }
|
|
|
825
|
|
22
|
826 if (initgroups(ccf->username, ccf->group) == -1) {
|
|
|
827 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
828 "initgroups(%s, %d) failed",
|
|
|
829 ccf->username, ccf->group);
|
|
|
830 }
|
|
|
831
|
|
16
|
832 if (setuid(ccf->user) == -1) {
|
|
|
833 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
834 "setuid(%d) failed", ccf->user);
|
|
|
835 /* fatal */
|
|
|
836 exit(2);
|
|
|
837 }
|
|
|
838 }
|
|
|
839
|
|
126
|
840 #if (NGX_HAVE_SCHED_SETAFFINITY)
|
|
|
841
|
|
|
842 if (cpu_affinity) {
|
|
|
843 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
|
844 "sched_setaffinity(0x%08Xl)", cpu_affinity);
|
|
|
845
|
|
|
846 if (sched_setaffinity(0, 32, (cpu_set_t *) &cpu_affinity) == -1) {
|
|
|
847 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
848 "sched_setaffinity(0x%08Xl) failed", cpu_affinity);
|
|
|
849 }
|
|
|
850 }
|
|
|
851
|
|
|
852 #endif
|
|
|
853
|
|
16
|
854 #if (NGX_HAVE_PR_SET_DUMPABLE)
|
|
|
855
|
|
|
856 /* allow coredump after setuid() in Linux 2.4.x */
|
|
|
857
|
|
|
858 if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1) {
|
|
|
859 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
860 "prctl(PR_SET_DUMPABLE) failed");
|
|
|
861 }
|
|
|
862
|
|
|
863 #endif
|
|
|
864
|
|
70
|
865 if (ccf->working_directory.len) {
|
|
72
|
866 if (chdir((char *) ccf->working_directory.data) == -1) {
|
|
70
|
867 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
868 "chdir(\"%s\") failed", ccf->working_directory.data);
|
|
|
869 /* fatal */
|
|
|
870 exit(2);
|
|
|
871 }
|
|
|
872 }
|
|
|
873
|
|
16
|
874 sigemptyset(&set);
|
|
|
875
|
|
|
876 if (sigprocmask(SIG_SETMASK, &set, NULL) == -1) {
|
|
|
877 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
878 "sigprocmask() failed");
|
|
|
879 }
|
|
|
880
|
|
|
881 ngx_init_temp_number();
|
|
|
882
|
|
|
883 /*
|
|
|
884 * disable deleting previous events for the listening sockets because
|
|
|
885 * in the worker processes there are no events at all at this point
|
|
126
|
886 */
|
|
16
|
887 ls = cycle->listening.elts;
|
|
|
888 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
92
|
889 ls[i].previous = NULL;
|
|
16
|
890 }
|
|
|
891
|
|
|
892 for (i = 0; ngx_modules[i]; i++) {
|
|
|
893 if (ngx_modules[i]->init_process) {
|
|
|
894 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
|
|
|
895 /* fatal */
|
|
|
896 exit(2);
|
|
|
897 }
|
|
|
898 }
|
|
|
899 }
|
|
|
900
|
|
|
901 for (n = 0; n < ngx_last_process; n++) {
|
|
|
902
|
|
|
903 if (ngx_processes[n].pid == -1) {
|
|
|
904 continue;
|
|
|
905 }
|
|
|
906
|
|
|
907 if (n == ngx_process_slot) {
|
|
|
908 continue;
|
|
|
909 }
|
|
|
910
|
|
|
911 if (ngx_processes[n].channel[1] == -1) {
|
|
|
912 continue;
|
|
|
913 }
|
|
|
914
|
|
|
915 if (close(ngx_processes[n].channel[1]) == -1) {
|
|
|
916 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
917 "close() channel failed");
|
|
|
918 }
|
|
|
919 }
|
|
|
920
|
|
|
921 if (close(ngx_processes[ngx_process_slot].channel[0]) == -1) {
|
|
|
922 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
923 "close() channel failed");
|
|
|
924 }
|
|
|
925
|
|
|
926 #if 0
|
|
|
927 ngx_last_process = 0;
|
|
|
928 #endif
|
|
|
929
|
|
|
930 if (ngx_add_channel_event(cycle, ngx_channel, NGX_READ_EVENT,
|
|
84
|
931 ngx_channel_handler) == NGX_ERROR)
|
|
16
|
932 {
|
|
|
933 /* fatal */
|
|
|
934 exit(2);
|
|
|
935 }
|
|
|
936 }
|
|
|
937
|
|
|
938
|
|
50
|
939 static void
|
|
122
|
940 ngx_worker_process_exit(ngx_cycle_t *cycle)
|
|
|
941 {
|
|
|
942 ngx_uint_t i;
|
|
|
943 ngx_connection_t *c;
|
|
|
944
|
|
|
945 #if (NGX_THREADS)
|
|
|
946 ngx_terminate = 1;
|
|
|
947
|
|
|
948 ngx_wakeup_worker_threads(cycle);
|
|
|
949 #endif
|
|
|
950
|
|
|
951 for (i = 0; ngx_modules[i]; i++) {
|
|
|
952 if (ngx_modules[i]->exit_process) {
|
|
|
953 ngx_modules[i]->exit_process(cycle);
|
|
|
954 }
|
|
|
955 }
|
|
|
956
|
|
136
|
957 if (ngx_quit) {
|
|
|
958 c = cycle->connections;
|
|
|
959 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
960 if (c[i].fd != -1
|
|
|
961 && c[i].read
|
|
|
962 && !c[i].read->accept
|
|
|
963 && !c[i].read->channel)
|
|
|
964 {
|
|
|
965 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
966 "open socket #%d left in %ui connection, "
|
|
|
967 "aborting",
|
|
|
968 c[i].fd, i);
|
|
|
969 ngx_debug_point();
|
|
|
970 }
|
|
122
|
971 }
|
|
|
972
|
|
136
|
973 if (ngx_debug_quit) {
|
|
|
974 ngx_debug_point();
|
|
|
975 }
|
|
122
|
976 }
|
|
|
977
|
|
|
978 /*
|
|
|
979 * we do not destroy cycle->pool here because a signal handler
|
|
|
980 * that uses cycle->log can be called at this point
|
|
|
981 */
|
|
|
982
|
|
|
983 #if 0
|
|
|
984 ngx_destroy_pool(cycle->pool);
|
|
|
985 #endif
|
|
|
986
|
|
|
987 exit(0);
|
|
|
988 }
|
|
|
989
|
|
|
990
|
|
|
991 static void
|
|
50
|
992 ngx_channel_handler(ngx_event_t *ev)
|
|
0
|
993 {
|
|
|
994 ngx_int_t n;
|
|
92
|
995 ngx_socket_t fd;
|
|
0
|
996 ngx_channel_t ch;
|
|
|
997 ngx_connection_t *c;
|
|
|
998
|
|
16
|
999 if (ev->timedout) {
|
|
|
1000 ev->timedout = 0;
|
|
|
1001 return;
|
|
|
1002 }
|
|
|
1003
|
|
0
|
1004 c = ev->data;
|
|
|
1005
|
|
|
1006 ngx_log_debug0(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel handler");
|
|
|
1007
|
|
|
1008 n = ngx_read_channel(c->fd, &ch, sizeof(ngx_channel_t), ev->log);
|
|
|
1009
|
|
10
|
1010 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel: %i", n);
|
|
0
|
1011
|
|
10
|
1012 if (n == NGX_ERROR) {
|
|
92
|
1013
|
|
|
1014 ngx_free_connection(c);
|
|
|
1015
|
|
|
1016 fd = c->fd;
|
|
|
1017 c->fd = (ngx_socket_t) -1;
|
|
|
1018
|
|
|
1019 if (close(fd) == -1) {
|
|
10
|
1020 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
|
|
|
1021 "close() channel failed");
|
|
|
1022 }
|
|
|
1023
|
|
|
1024 return;
|
|
|
1025 }
|
|
|
1026
|
|
|
1027 if (n == NGX_AGAIN) {
|
|
0
|
1028 return;
|
|
|
1029 }
|
|
|
1030
|
|
|
1031 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1032 "channel command: %d", ch.command);
|
|
|
1033
|
|
|
1034 switch (ch.command) {
|
|
|
1035
|
|
|
1036 case NGX_CMD_QUIT:
|
|
|
1037 ngx_quit = 1;
|
|
|
1038 break;
|
|
|
1039
|
|
|
1040 case NGX_CMD_TERMINATE:
|
|
|
1041 ngx_terminate = 1;
|
|
|
1042 break;
|
|
|
1043
|
|
|
1044 case NGX_CMD_REOPEN:
|
|
|
1045 ngx_reopen = 1;
|
|
|
1046 break;
|
|
|
1047
|
|
|
1048 case NGX_CMD_OPEN_CHANNEL:
|
|
|
1049
|
|
|
1050 ngx_log_debug3(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
10
|
1051 "get channel s:%i pid:%P fd:%d", ch.slot, ch.pid, ch.fd);
|
|
0
|
1052
|
|
|
1053 ngx_processes[ch.slot].pid = ch.pid;
|
|
|
1054 ngx_processes[ch.slot].channel[0] = ch.fd;
|
|
|
1055 break;
|
|
|
1056
|
|
|
1057 case NGX_CMD_CLOSE_CHANNEL:
|
|
|
1058
|
|
|
1059 ngx_log_debug4(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
10
|
1060 "close channel s:%i pid:%P our:%P fd:%d",
|
|
0
|
1061 ch.slot, ch.pid, ngx_processes[ch.slot].pid,
|
|
|
1062 ngx_processes[ch.slot].channel[0]);
|
|
|
1063
|
|
|
1064 if (close(ngx_processes[ch.slot].channel[0]) == -1) {
|
|
16
|
1065 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
|
|
|
1066 "close() channel failed");
|
|
0
|
1067 }
|
|
|
1068
|
|
|
1069 ngx_processes[ch.slot].channel[0] = -1;
|
|
|
1070 break;
|
|
|
1071 }
|
|
|
1072 }
|
|
|
1073
|
|
|
1074
|
|
|
1075 #if (NGX_THREADS)
|
|
|
1076
|
|
50
|
1077 static void
|
|
|
1078 ngx_wakeup_worker_threads(ngx_cycle_t *cycle)
|
|
0
|
1079 {
|
|
|
1080 ngx_int_t i;
|
|
|
1081 ngx_uint_t live;
|
|
|
1082
|
|
|
1083 for ( ;; ) {
|
|
|
1084
|
|
|
1085 live = 0;
|
|
|
1086
|
|
|
1087 for (i = 0; i < ngx_threads_n; i++) {
|
|
|
1088 if (ngx_threads[i].state < NGX_THREAD_EXIT) {
|
|
18
|
1089 if (ngx_cond_signal(ngx_threads[i].cv) == NGX_ERROR) {
|
|
|
1090 ngx_threads[i].state = NGX_THREAD_DONE;
|
|
0
|
1091
|
|
|
1092 } else {
|
|
|
1093 live = 1;
|
|
|
1094 }
|
|
|
1095 }
|
|
|
1096
|
|
|
1097 if (ngx_threads[i].state == NGX_THREAD_EXIT) {
|
|
|
1098 ngx_thread_join(ngx_threads[i].tid, NULL);
|
|
|
1099 ngx_threads[i].state = NGX_THREAD_DONE;
|
|
|
1100 }
|
|
|
1101 }
|
|
|
1102
|
|
|
1103 if (live == 0) {
|
|
|
1104 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
1105 "all worker threads are joined");
|
|
|
1106
|
|
|
1107 /* STUB */
|
|
|
1108 ngx_done_events(cycle);
|
|
|
1109 ngx_mutex_destroy(ngx_event_timer_mutex);
|
|
|
1110 ngx_mutex_destroy(ngx_posted_events_mutex);
|
|
|
1111
|
|
|
1112 return;
|
|
|
1113 }
|
|
|
1114
|
|
|
1115 ngx_sched_yield();
|
|
|
1116 }
|
|
|
1117 }
|
|
|
1118
|
|
|
1119
|
|
112
|
1120 static ngx_thread_value_t
|
|
50
|
1121 ngx_worker_thread_cycle(void *data)
|
|
0
|
1122 {
|
|
|
1123 ngx_thread_t *thr = data;
|
|
|
1124
|
|
|
1125 sigset_t set;
|
|
|
1126 ngx_err_t err;
|
|
|
1127 ngx_core_tls_t *tls;
|
|
|
1128 ngx_cycle_t *cycle;
|
|
|
1129
|
|
|
1130 cycle = (ngx_cycle_t *) ngx_cycle;
|
|
|
1131
|
|
|
1132 sigemptyset(&set);
|
|
|
1133 sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
|
|
|
1134 sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
|
|
|
1135 sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
|
|
|
1136
|
|
|
1137 err = ngx_thread_sigmask(SIG_BLOCK, &set, NULL);
|
|
|
1138 if (err) {
|
|
|
1139 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
1140 ngx_thread_sigmask_n " failed");
|
|
112
|
1141 return (ngx_thread_value_t) 1;
|
|
0
|
1142 }
|
|
|
1143
|
|
|
1144 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
1145 "thread " NGX_TID_T_FMT " started", ngx_thread_self());
|
|
0
|
1146
|
|
|
1147 ngx_setthrtitle("worker thread");
|
|
|
1148
|
|
50
|
1149 tls = ngx_calloc(sizeof(ngx_core_tls_t), cycle->log);
|
|
|
1150 if (tls == NULL) {
|
|
112
|
1151 return (ngx_thread_value_t) 1;
|
|
0
|
1152 }
|
|
|
1153
|
|
|
1154 err = ngx_thread_set_tls(ngx_core_tls_key, tls);
|
|
|
1155 if (err != 0) {
|
|
|
1156 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
1157 ngx_thread_set_tls_n " failed");
|
|
112
|
1158 return (ngx_thread_value_t) 1;
|
|
0
|
1159 }
|
|
|
1160
|
|
112
|
1161 ngx_mutex_lock(ngx_posted_events_mutex);
|
|
0
|
1162
|
|
|
1163 for ( ;; ) {
|
|
|
1164 thr->state = NGX_THREAD_FREE;
|
|
|
1165
|
|
|
1166 if (ngx_cond_wait(thr->cv, ngx_posted_events_mutex) == NGX_ERROR) {
|
|
112
|
1167 return (ngx_thread_value_t) 1;
|
|
0
|
1168 }
|
|
|
1169
|
|
|
1170 if (ngx_terminate) {
|
|
|
1171 thr->state = NGX_THREAD_EXIT;
|
|
|
1172
|
|
|
1173 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
|
1174
|
|
|
1175 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
1176 "thread " NGX_TID_T_FMT " is done",
|
|
|
1177 ngx_thread_self());
|
|
0
|
1178
|
|
112
|
1179 return (ngx_thread_value_t) 0;
|
|
0
|
1180 }
|
|
|
1181
|
|
|
1182 thr->state = NGX_THREAD_BUSY;
|
|
|
1183
|
|
|
1184 if (ngx_event_thread_process_posted(cycle) == NGX_ERROR) {
|
|
112
|
1185 return (ngx_thread_value_t) 1;
|
|
0
|
1186 }
|
|
|
1187
|
|
|
1188 if (ngx_event_thread_process_posted(cycle) == NGX_ERROR) {
|
|
112
|
1189 return (ngx_thread_value_t) 1;
|
|
0
|
1190 }
|
|
|
1191
|
|
|
1192 if (ngx_process_changes) {
|
|
|
1193 if (ngx_process_changes(cycle, 1) == NGX_ERROR) {
|
|
112
|
1194 return (ngx_thread_value_t) 1;
|
|
0
|
1195 }
|
|
|
1196 }
|
|
|
1197 }
|
|
|
1198 }
|
|
|
1199
|
|
|
1200 #endif
|
|
16
|
1201
|
|
|
1202
|
|
50
|
1203 #if 0
|
|
|
1204
|
|
|
1205 static void
|
|
|
1206 ngx_garbage_collector_cycle(ngx_cycle_t *cycle, void *data)
|
|
16
|
1207 {
|
|
|
1208 ngx_uint_t i;
|
|
|
1209 ngx_gc_t ctx;
|
|
|
1210 ngx_path_t **path;
|
|
|
1211 ngx_event_t *ev;
|
|
|
1212
|
|
22
|
1213 ngx_worker_process_init(cycle, 0);
|
|
16
|
1214
|
|
92
|
1215 ev = &cycle->read_events0[ngx_channel];
|
|
16
|
1216
|
|
|
1217 ngx_accept_mutex = NULL;
|
|
|
1218
|
|
|
1219 ngx_setproctitle("garbage collector");
|
|
|
1220
|
|
|
1221 #if 0
|
|
|
1222 ngx_add_timer(ev, 60 * 1000);
|
|
|
1223 #endif
|
|
|
1224
|
|
|
1225 for ( ;; ) {
|
|
|
1226
|
|
|
1227 if (ngx_terminate || ngx_quit) {
|
|
26
|
1228 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
16
|
1229 exit(0);
|
|
|
1230 }
|
|
|
1231
|
|
|
1232 if (ngx_reopen) {
|
|
|
1233 ngx_reopen = 0;
|
|
26
|
1234 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
|
16
|
1235 ngx_reopen_files(cycle, -1);
|
|
|
1236 }
|
|
|
1237
|
|
|
1238 path = cycle->pathes.elts;
|
|
|
1239 for (i = 0; i < cycle->pathes.nelts; i++) {
|
|
|
1240 ctx.path = path[i];
|
|
|
1241 ctx.log = cycle->log;
|
|
28
|
1242 ctx.handler = path[i]->cleaner;
|
|
16
|
1243
|
|
|
1244 ngx_collect_garbage(&ctx, &path[i]->name, 0);
|
|
|
1245 }
|
|
|
1246
|
|
|
1247 ngx_add_timer(ev, 60 * 60 * 1000);
|
|
|
1248
|
|
112
|
1249 ngx_process_events_and_timers(cycle);
|
|
16
|
1250 }
|
|
|
1251 }
|
|
50
|
1252
|
|
|
1253 #endif
|
