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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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340
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17 static ngx_uint_t ngx_reap_children(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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332
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65 static ngx_cycle_t ngx_exit_cycle;
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66 static ngx_log_t ngx_exit_log;
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67 static ngx_open_file_t ngx_exit_log_file;
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68
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69
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50
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70 void
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71 ngx_master_process_cycle(ngx_cycle_t *cycle)
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0
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72 {
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73 char *title;
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74 u_char *p;
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75 size_t size;
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76 ngx_int_t i;
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80
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77 ngx_uint_t n;
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0
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78 sigset_t set;
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79 struct itimerval itv;
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80 ngx_uint_t live;
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81 ngx_msec_t delay;
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80
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82 ngx_listening_t *ls;
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0
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83 ngx_core_conf_t *ccf;
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84
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85 sigemptyset(&set);
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86 sigaddset(&set, SIGCHLD);
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87 sigaddset(&set, SIGALRM);
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88 sigaddset(&set, SIGIO);
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89 sigaddset(&set, SIGINT);
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90 sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
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91 sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
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92 sigaddset(&set, ngx_signal_value(NGX_NOACCEPT_SIGNAL));
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93 sigaddset(&set, ngx_signal_value(NGX_TERMINATE_SIGNAL));
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94 sigaddset(&set, ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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95 sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
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96
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97 if (sigprocmask(SIG_BLOCK, &set, NULL) == -1) {
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98 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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99 "sigprocmask() failed");
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100 }
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101
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102 sigemptyset(&set);
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103
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104
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105 size = sizeof(master_process);
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106
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2
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107 for (i = 0; i < ngx_argc; i++) {
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108 size += ngx_strlen(ngx_argv[i]) + 1;
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0
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109 }
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110
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111 title = ngx_palloc(cycle->pool, size);
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112
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113 p = ngx_cpymem(title, master_process, sizeof(master_process) - 1);
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2
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114 for (i = 0; i < ngx_argc; i++) {
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115 *p++ = ' ';
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2
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116 p = ngx_cpystrn(p, (u_char *) ngx_argv[i], size);
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0
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117 }
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118
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119 ngx_setproctitle(title);
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120
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121
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122 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
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123
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124 ngx_start_worker_processes(cycle, ccf->worker_processes,
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125 NGX_PROCESS_RESPAWN);
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16
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126 ngx_start_garbage_collector(cycle, NGX_PROCESS_RESPAWN);
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0
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127
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128 ngx_new_binary = 0;
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129 delay = 0;
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130 live = 1;
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131
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132 for ( ;; ) {
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133 if (delay) {
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134 delay *= 2;
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135
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136 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
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137 "temination cycle: %d", delay);
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138
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139 itv.it_interval.tv_sec = 0;
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140 itv.it_interval.tv_usec = 0;
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141 itv.it_value.tv_sec = delay / 1000;
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142 itv.it_value.tv_usec = (delay % 1000 ) * 1000;
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143
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144 if (setitimer(ITIMER_REAL, &itv, NULL) == -1) {
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145 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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146 "setitimer() failed");
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147 }
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148 }
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149
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150 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "sigsuspend");
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151
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152 sigsuspend(&set);
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153
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112
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154 ngx_time_update(0, 0);
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0
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155
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156 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "wake up");
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157
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158 if (ngx_reap) {
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159 ngx_reap = 0;
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340
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160 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "reap children");
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0
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161
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340
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162 live = ngx_reap_children(cycle);
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0
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163 }
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164
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165 if (!live && (ngx_terminate || ngx_quit)) {
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122
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166 ngx_master_process_exit(cycle);
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0
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167 }
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168
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169 if (ngx_terminate) {
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170 if (delay == 0) {
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171 delay = 50;
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172 }
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173
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174 if (delay > 1000) {
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175 ngx_signal_worker_processes(cycle, SIGKILL);
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176 } else {
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177 ngx_signal_worker_processes(cycle,
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178 ngx_signal_value(NGX_TERMINATE_SIGNAL));
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179 }
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180
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181 continue;
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182 }
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183
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184 if (ngx_quit) {
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185 ngx_signal_worker_processes(cycle,
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186 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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80
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187
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188 ls = cycle->listening.elts;
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189 for (n = 0; n < cycle->listening.nelts; n++) {
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190 if (ngx_close_socket(ls[n].fd) == -1) {
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191 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_socket_errno,
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192 ngx_close_socket_n " %V failed",
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193 &ls[n].addr_text);
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194 }
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195 }
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196 cycle->listening.nelts = 0;
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197
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0
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198 continue;
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199 }
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200
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201 if (ngx_reconfigure) {
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202 ngx_reconfigure = 0;
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203
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204 if (ngx_new_binary) {
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205 ngx_start_worker_processes(cycle, ccf->worker_processes,
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206 NGX_PROCESS_RESPAWN);
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16
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207 ngx_start_garbage_collector(cycle, NGX_PROCESS_RESPAWN);
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0
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208 ngx_noaccepting = 0;
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209
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210 continue;
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211 }
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212
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26
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213 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
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0
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214
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215 cycle = ngx_init_cycle(cycle);
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216 if (cycle == NULL) {
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217 cycle = (ngx_cycle_t *) ngx_cycle;
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218 continue;
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219 }
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220
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221 ngx_cycle = cycle;
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222 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
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223 ngx_core_module);
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224 ngx_start_worker_processes(cycle, ccf->worker_processes,
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225 NGX_PROCESS_JUST_RESPAWN);
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16
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226 ngx_start_garbage_collector(cycle, NGX_PROCESS_JUST_RESPAWN);
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0
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227 live = 1;
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228 ngx_signal_worker_processes(cycle,
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229 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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230 }
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231
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232 if (ngx_restart) {
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233 ngx_restart = 0;
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234 ngx_start_worker_processes(cycle, ccf->worker_processes,
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235 NGX_PROCESS_RESPAWN);
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16
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236 ngx_start_garbage_collector(cycle, NGX_PROCESS_RESPAWN);
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0
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237 live = 1;
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238 }
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239
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240 if (ngx_reopen) {
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241 ngx_reopen = 0;
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26
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242 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
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0
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243 ngx_reopen_files(cycle, ccf->user);
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244 ngx_signal_worker_processes(cycle,
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245 ngx_signal_value(NGX_REOPEN_SIGNAL));
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246 }
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247
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248 if (ngx_change_binary) {
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249 ngx_change_binary = 0;
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26
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250 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "changing binary");
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2
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251 ngx_new_binary = ngx_exec_new_binary(cycle, ngx_argv);
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0
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252 }
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253
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254 if (ngx_noaccept) {
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255 ngx_noaccept = 0;
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256 ngx_noaccepting = 1;
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257 ngx_signal_worker_processes(cycle,
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258 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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259 }
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260 }
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261 }
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262
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263
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50
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264 void
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265 ngx_single_process_cycle(ngx_cycle_t *cycle)
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0
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266 {
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267 ngx_uint_t i;
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268
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269 ngx_init_temp_number();
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270
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271 for (i = 0; ngx_modules[i]; i++) {
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272 if (ngx_modules[i]->init_process) {
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273 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
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274 /* fatal */
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275 exit(2);
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276 }
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277 }
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278 }
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279
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280 for ( ;; ) {
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281 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
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282
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112
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283 ngx_process_events_and_timers(cycle);
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0
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284
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285 if (ngx_terminate || ngx_quit) {
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120
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286
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287 for (i = 0; ngx_modules[i]; i++) {
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288 if (ngx_modules[i]->exit_process) {
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289 ngx_modules[i]->exit_process(cycle);
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290 }
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291 }
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292
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122
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293 ngx_master_process_exit(cycle);
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0
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294 }
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295
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296 if (ngx_reconfigure) {
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297 ngx_reconfigure = 0;
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26
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298 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
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0
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299
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300 cycle = ngx_init_cycle(cycle);
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301 if (cycle == NULL) {
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302 cycle = (ngx_cycle_t *) ngx_cycle;
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303 continue;
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304 }
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305
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306 ngx_cycle = cycle;
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307 }
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308
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309 if (ngx_reopen) {
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310 ngx_reopen = 0;
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26
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311 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
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0
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312 ngx_reopen_files(cycle, (ngx_uid_t) -1);
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313 }
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314 }
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315 }
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316
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317
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50
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318 static void
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319 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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320 {
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126
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321 ngx_int_t i, s;
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106
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322 ngx_channel_t ch;
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0
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323
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26
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324 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start worker processes");
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0
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325
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326 ch.command = NGX_CMD_OPEN_CHANNEL;
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327
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126
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328 for (i = 0; i < n; i++) {
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329
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330 cpu_affinity = ngx_get_cpu_affinity(i);
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331
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0
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332 ngx_spawn_process(cycle, ngx_worker_process_cycle, NULL,
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333 "worker process", type);
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334
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335 ch.pid = ngx_processes[ngx_process_slot].pid;
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336 ch.slot = ngx_process_slot;
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337 ch.fd = ngx_processes[ngx_process_slot].channel[0];
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338
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126
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339 for (s = 0; s < ngx_last_process; s++) {
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0
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340
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126
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341 if (s == ngx_process_slot
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342 || ngx_processes[s].pid == -1
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343 || ngx_processes[s].channel[0] == -1)
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0
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344 {
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345 continue;
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346 }
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347
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348 ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,
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10
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349 "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",
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350 ch.slot, ch.pid, ch.fd,
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126
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351 s, ngx_processes[s].pid,
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352 ngx_processes[s].channel[0]);
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0
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353
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354 /* TODO: NGX_AGAIN */
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355
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126
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356 ngx_write_channel(ngx_processes[s].channel[0],
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0
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357 &ch, sizeof(ngx_channel_t), cycle->log);
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358 }
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359 }
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360 }
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361
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362
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50
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363 static void
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364 ngx_start_garbage_collector(ngx_cycle_t *cycle, ngx_int_t type)
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16
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365 {
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50
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366 #if 0
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367 ngx_int_t i;
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368 ngx_channel_t ch;
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16
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369
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26
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370 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start garbage collector");
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16
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371
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372 ch.command = NGX_CMD_OPEN_CHANNEL;
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373
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374 ngx_spawn_process(cycle, ngx_garbage_collector_cycle, NULL,
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375 "garbage collector", type);
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376
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377 ch.pid = ngx_processes[ngx_process_slot].pid;
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378 ch.slot = ngx_process_slot;
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379 ch.fd = ngx_processes[ngx_process_slot].channel[0];
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380
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|
|
381 for (i = 0; i < ngx_last_process; i++) {
|
|
|
382
|
|
|
383 if (i == ngx_process_slot
|
|
|
384 || ngx_processes[i].pid == -1
|
|
|
385 || ngx_processes[i].channel[0] == -1)
|
|
|
386 {
|
|
|
387 continue;
|
|
|
388 }
|
|
|
389
|
|
|
390 ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
391 "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",
|
|
|
392 ch.slot, ch.pid, ch.fd,
|
|
|
393 i, ngx_processes[i].pid,
|
|
|
394 ngx_processes[i].channel[0]);
|
|
|
395
|
|
|
396 /* TODO: NGX_AGAIN */
|
|
|
397
|
|
|
398 ngx_write_channel(ngx_processes[i].channel[0],
|
|
|
399 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
|
400 }
|
|
50
|
401 #endif
|
|
16
|
402 }
|
|
|
403
|
|
|
404
|
|
50
|
405 static void
|
|
|
406 ngx_signal_worker_processes(ngx_cycle_t *cycle, int signo)
|
|
0
|
407 {
|
|
|
408 ngx_int_t i;
|
|
|
409 ngx_err_t err;
|
|
|
410 ngx_channel_t ch;
|
|
|
411
|
|
|
412 switch (signo) {
|
|
|
413
|
|
|
414 case ngx_signal_value(NGX_SHUTDOWN_SIGNAL):
|
|
|
415 ch.command = NGX_CMD_QUIT;
|
|
|
416 break;
|
|
|
417
|
|
|
418 case ngx_signal_value(NGX_TERMINATE_SIGNAL):
|
|
|
419 ch.command = NGX_CMD_TERMINATE;
|
|
|
420 break;
|
|
|
421
|
|
|
422 case ngx_signal_value(NGX_REOPEN_SIGNAL):
|
|
|
423 ch.command = NGX_CMD_REOPEN;
|
|
|
424 break;
|
|
|
425
|
|
|
426 default:
|
|
|
427 ch.command = 0;
|
|
|
428 }
|
|
|
429
|
|
|
430 ch.fd = -1;
|
|
|
431
|
|
|
432
|
|
|
433 for (i = 0; i < ngx_last_process; i++) {
|
|
|
434
|
|
|
435 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
436 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
|
0
|
437 i,
|
|
|
438 ngx_processes[i].pid,
|
|
|
439 ngx_processes[i].exiting,
|
|
|
440 ngx_processes[i].exited,
|
|
|
441 ngx_processes[i].detached,
|
|
|
442 ngx_processes[i].respawn,
|
|
|
443 ngx_processes[i].just_respawn);
|
|
|
444
|
|
|
445 if (ngx_processes[i].detached || ngx_processes[i].pid == -1) {
|
|
|
446 continue;
|
|
|
447 }
|
|
|
448
|
|
|
449 if (ngx_processes[i].just_respawn) {
|
|
|
450 ngx_processes[i].just_respawn = 0;
|
|
|
451 continue;
|
|
|
452 }
|
|
|
453
|
|
|
454 if (ngx_processes[i].exiting
|
|
|
455 && signo == ngx_signal_value(NGX_SHUTDOWN_SIGNAL))
|
|
|
456 {
|
|
|
457 continue;
|
|
|
458 }
|
|
|
459
|
|
|
460 if (ch.command) {
|
|
|
461 if (ngx_write_channel(ngx_processes[i].channel[0],
|
|
290
|
462 &ch, sizeof(ngx_channel_t), cycle->log)
|
|
|
463 == NGX_OK)
|
|
0
|
464 {
|
|
|
465 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
|
466 ngx_processes[i].exiting = 1;
|
|
|
467 }
|
|
|
468
|
|
|
469 continue;
|
|
|
470 }
|
|
|
471 }
|
|
|
472
|
|
|
473 ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
474 "kill (%P, %d)" , ngx_processes[i].pid, signo);
|
|
0
|
475
|
|
|
476 if (kill(ngx_processes[i].pid, signo) == -1) {
|
|
|
477 err = ngx_errno;
|
|
|
478 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
10
|
479 "kill(%P, %d) failed",
|
|
0
|
480 ngx_processes[i].pid, signo);
|
|
|
481
|
|
|
482 if (err == NGX_ESRCH) {
|
|
|
483 ngx_processes[i].exited = 1;
|
|
|
484 ngx_processes[i].exiting = 0;
|
|
|
485 ngx_reap = 1;
|
|
|
486 }
|
|
|
487
|
|
|
488 continue;
|
|
|
489 }
|
|
|
490
|
|
|
491 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
|
492 ngx_processes[i].exiting = 1;
|
|
|
493 }
|
|
|
494 }
|
|
|
495 }
|
|
|
496
|
|
|
497
|
|
50
|
498 static ngx_uint_t
|
|
340
|
499 ngx_reap_children(ngx_cycle_t *cycle)
|
|
0
|
500 {
|
|
92
|
501 ngx_int_t i, n;
|
|
|
502 ngx_uint_t live;
|
|
|
503 ngx_channel_t ch;
|
|
|
504 ngx_core_conf_t *ccf;
|
|
0
|
505
|
|
|
506 ch.command = NGX_CMD_CLOSE_CHANNEL;
|
|
|
507 ch.fd = -1;
|
|
|
508
|
|
|
509 live = 0;
|
|
|
510 for (i = 0; i < ngx_last_process; i++) {
|
|
|
511
|
|
|
512 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
513 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
|
0
|
514 i,
|
|
|
515 ngx_processes[i].pid,
|
|
|
516 ngx_processes[i].exiting,
|
|
|
517 ngx_processes[i].exited,
|
|
|
518 ngx_processes[i].detached,
|
|
|
519 ngx_processes[i].respawn,
|
|
|
520 ngx_processes[i].just_respawn);
|
|
|
521
|
|
|
522 if (ngx_processes[i].pid == -1) {
|
|
|
523 continue;
|
|
|
524 }
|
|
|
525
|
|
|
526 if (ngx_processes[i].exited) {
|
|
|
527
|
|
|
528 if (!ngx_processes[i].detached) {
|
|
|
529 ngx_close_channel(ngx_processes[i].channel, cycle->log);
|
|
|
530
|
|
|
531 ngx_processes[i].channel[0] = -1;
|
|
|
532 ngx_processes[i].channel[1] = -1;
|
|
|
533
|
|
|
534 ch.pid = ngx_processes[i].pid;
|
|
|
535 ch.slot = i;
|
|
|
536
|
|
|
537 for (n = 0; n < ngx_last_process; n++) {
|
|
|
538 if (ngx_processes[n].exited
|
|
|
539 || ngx_processes[n].pid == -1
|
|
|
540 || ngx_processes[n].channel[0] == -1)
|
|
|
541 {
|
|
|
542 continue;
|
|
|
543 }
|
|
|
544
|
|
|
545 ngx_log_debug3(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
546 "pass close channel s:%i pid:%P to:%P",
|
|
|
547 ch.slot, ch.pid, ngx_processes[n].pid);
|
|
0
|
548
|
|
|
549 /* TODO: NGX_AGAIN */
|
|
|
550
|
|
|
551 ngx_write_channel(ngx_processes[n].channel[0],
|
|
|
552 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
|
553 }
|
|
|
554 }
|
|
|
555
|
|
|
556 if (ngx_processes[i].respawn
|
|
|
557 && !ngx_processes[i].exiting
|
|
|
558 && !ngx_terminate
|
|
|
559 && !ngx_quit)
|
|
|
560 {
|
|
|
561 if (ngx_spawn_process(cycle, ngx_processes[i].proc,
|
|
|
562 ngx_processes[i].data,
|
|
|
563 ngx_processes[i].name, i)
|
|
92
|
564 == NGX_INVALID_PID)
|
|
0
|
565 {
|
|
|
566 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
567 "can not respawn %s", ngx_processes[i].name);
|
|
|
568 continue;
|
|
|
569 }
|
|
|
570
|
|
22
|
571
|
|
|
572 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
|
573 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
|
574 ch.slot = ngx_process_slot;
|
|
|
575 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
|
576
|
|
|
577 for (n = 0; n < ngx_last_process; n++) {
|
|
|
578
|
|
|
579 if (n == ngx_process_slot
|
|
|
580 || ngx_processes[n].pid == -1
|
|
|
581 || ngx_processes[n].channel[0] == -1)
|
|
|
582 {
|
|
|
583 continue;
|
|
|
584 }
|
|
|
585
|
|
|
586 ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
587 "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",
|
|
|
588 ch.slot, ch.pid, ch.fd,
|
|
|
589 n, ngx_processes[n].pid,
|
|
|
590 ngx_processes[n].channel[0]);
|
|
|
591
|
|
|
592 /* TODO: NGX_AGAIN */
|
|
|
593
|
|
|
594 ngx_write_channel(ngx_processes[n].channel[0],
|
|
|
595 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
|
596 }
|
|
|
597
|
|
0
|
598 live = 1;
|
|
|
599
|
|
|
600 continue;
|
|
|
601 }
|
|
|
602
|
|
|
603 if (ngx_processes[i].pid == ngx_new_binary) {
|
|
92
|
604
|
|
|
605 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
|
|
|
606 ngx_core_module);
|
|
|
607
|
|
|
608 if (ngx_rename_file((char *) ccf->oldpid.data,
|
|
|
609 (char *) ccf->pid.data)
|
|
|
610 != NGX_OK)
|
|
|
611 {
|
|
|
612 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
613 ngx_rename_file_n " %s back to %s failed "
|
|
|
614 "after the new binary process \"%s\" exited",
|
|
|
615 ccf->oldpid.data, ccf->pid.data, ngx_argv[0]);
|
|
|
616 }
|
|
|
617
|
|
0
|
618 ngx_new_binary = 0;
|
|
|
619 if (ngx_noaccepting) {
|
|
|
620 ngx_restart = 1;
|
|
|
621 ngx_noaccepting = 0;
|
|
|
622 }
|
|
|
623 }
|
|
|
624
|
|
|
625 if (i == ngx_last_process - 1) {
|
|
|
626 ngx_last_process--;
|
|
|
627
|
|
|
628 } else {
|
|
|
629 ngx_processes[i].pid = -1;
|
|
|
630 }
|
|
|
631
|
|
|
632 } else if (ngx_processes[i].exiting || !ngx_processes[i].detached) {
|
|
|
633 live = 1;
|
|
|
634 }
|
|
|
635 }
|
|
|
636
|
|
|
637 return live;
|
|
|
638 }
|
|
|
639
|
|
|
640
|
|
50
|
641 static void
|
|
122
|
642 ngx_master_process_exit(ngx_cycle_t *cycle)
|
|
0
|
643 {
|
|
120
|
644 ngx_uint_t i;
|
|
|
645
|
|
0
|
646 ngx_delete_pidfile(cycle);
|
|
|
647
|
|
26
|
648 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit");
|
|
0
|
649
|
|
120
|
650 for (i = 0; ngx_modules[i]; i++) {
|
|
|
651 if (ngx_modules[i]->exit_master) {
|
|
|
652 ngx_modules[i]->exit_master(cycle);
|
|
|
653 }
|
|
|
654 }
|
|
|
655
|
|
54
|
656 /*
|
|
332
|
657 * Copy ngx_cycle->log related data to the special static exit cycle,
|
|
|
658 * log, and log file structures enough to allow a signal handler to log.
|
|
|
659 * The handler may be called when standard ngx_cycle->log allocated from
|
|
|
660 * ngx_cycle->pool is already destroyed.
|
|
54
|
661 */
|
|
|
662
|
|
332
|
663 ngx_exit_log_file.fd = ngx_cycle->log->file->fd;
|
|
|
664
|
|
|
665 ngx_exit_log = *ngx_cycle->log;
|
|
|
666 ngx_exit_log.file = &ngx_exit_log_file;
|
|
|
667
|
|
|
668 ngx_exit_cycle.log = &ngx_exit_log;
|
|
|
669 ngx_cycle = &ngx_exit_cycle;
|
|
|
670
|
|
0
|
671 ngx_destroy_pool(cycle->pool);
|
|
|
672
|
|
|
673 exit(0);
|
|
|
674 }
|
|
|
675
|
|
|
676
|
|
50
|
677 static void
|
|
|
678 ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data)
|
|
0
|
679 {
|
|
290
|
680 ngx_uint_t i;
|
|
|
681 ngx_connection_t *c;
|
|
50
|
682 #if (NGX_THREADS)
|
|
18
|
683 ngx_int_t n;
|
|
|
684 ngx_err_t err;
|
|
|
685 ngx_core_conf_t *ccf;
|
|
50
|
686 #endif
|
|
18
|
687
|
|
22
|
688 ngx_worker_process_init(cycle, 1);
|
|
0
|
689
|
|
|
690 ngx_setproctitle("worker process");
|
|
|
691
|
|
|
692 #if (NGX_THREADS)
|
|
|
693
|
|
18
|
694 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
695
|
|
0
|
696 if (ngx_threads_n) {
|
|
290
|
697 if (ngx_init_threads(ngx_threads_n, ccf->thread_stack_size, cycle)
|
|
|
698 == NGX_ERROR)
|
|
0
|
699 {
|
|
|
700 /* fatal */
|
|
|
701 exit(2);
|
|
|
702 }
|
|
|
703
|
|
|
704 err = ngx_thread_key_create(&ngx_core_tls_key);
|
|
|
705 if (err != 0) {
|
|
|
706 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
707 ngx_thread_key_create_n " failed");
|
|
|
708 /* fatal */
|
|
|
709 exit(2);
|
|
|
710 }
|
|
|
711
|
|
|
712 for (n = 0; n < ngx_threads_n; n++) {
|
|
|
713
|
|
50
|
714 ngx_threads[n].cv = ngx_cond_init(cycle->log);
|
|
|
715
|
|
|
716 if (ngx_threads[n].cv == NULL) {
|
|
0
|
717 /* fatal */
|
|
|
718 exit(2);
|
|
|
719 }
|
|
|
720
|
|
|
721 if (ngx_create_thread((ngx_tid_t *) &ngx_threads[n].tid,
|
|
|
722 ngx_worker_thread_cycle,
|
|
290
|
723 (void *) &ngx_threads[n], cycle->log)
|
|
|
724 != 0)
|
|
0
|
725 {
|
|
|
726 /* fatal */
|
|
|
727 exit(2);
|
|
|
728 }
|
|
|
729 }
|
|
|
730 }
|
|
|
731
|
|
|
732 #endif
|
|
|
733
|
|
|
734 for ( ;; ) {
|
|
290
|
735
|
|
|
736 if (ngx_exiting) {
|
|
|
737
|
|
|
738 c = cycle->connections;
|
|
|
739
|
|
|
740 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
741
|
|
|
742 /* THREAD: lock */
|
|
0
|
743
|
|
290
|
744 if (c[i].fd != -1 && c[i].idle) {
|
|
|
745 c[i].close = 1;
|
|
|
746 c[i].read->handler(c[i].read);
|
|
|
747 }
|
|
|
748 }
|
|
|
749
|
|
|
750 if (ngx_event_timer_rbtree.root == ngx_event_timer_rbtree.sentinel)
|
|
|
751 {
|
|
|
752 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
|
753
|
|
|
754 ngx_worker_process_exit(cycle);
|
|
|
755 }
|
|
0
|
756 }
|
|
|
757
|
|
|
758 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
|
|
|
759
|
|
112
|
760 ngx_process_events_and_timers(cycle);
|
|
0
|
761
|
|
|
762 if (ngx_terminate) {
|
|
26
|
763 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
0
|
764
|
|
122
|
765 ngx_worker_process_exit(cycle);
|
|
0
|
766 }
|
|
|
767
|
|
|
768 if (ngx_quit) {
|
|
|
769 ngx_quit = 0;
|
|
26
|
770 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
0
|
771 "gracefully shutting down");
|
|
|
772 ngx_setproctitle("worker process is shutting down");
|
|
|
773
|
|
|
774 if (!ngx_exiting) {
|
|
|
775 ngx_close_listening_sockets(cycle);
|
|
|
776 ngx_exiting = 1;
|
|
|
777 }
|
|
|
778 }
|
|
|
779
|
|
|
780 if (ngx_reopen) {
|
|
|
781 ngx_reopen = 0;
|
|
26
|
782 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
|
0
|
783 ngx_reopen_files(cycle, -1);
|
|
|
784 }
|
|
|
785 }
|
|
|
786 }
|
|
|
787
|
|
|
788
|
|
50
|
789 static void
|
|
|
790 ngx_worker_process_init(ngx_cycle_t *cycle, ngx_uint_t priority)
|
|
16
|
791 {
|
|
278
|
792 sigset_t set;
|
|
|
793 ngx_int_t n;
|
|
|
794 ngx_uint_t i;
|
|
|
795 struct rlimit rlmt;
|
|
|
796 ngx_core_conf_t *ccf;
|
|
|
797 ngx_listening_t *ls;
|
|
16
|
798
|
|
|
799 ngx_process = NGX_PROCESS_WORKER;
|
|
|
800
|
|
278
|
801 if (ngx_set_environment(cycle, NULL) == NULL) {
|
|
|
802 /* fatal */
|
|
|
803 exit(2);
|
|
|
804 }
|
|
|
805
|
|
16
|
806 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
807
|
|
328
|
808 if (priority && ccf->priority != 0) {
|
|
|
809 if (setpriority(PRIO_PROCESS, 0, ccf->priority) == -1) {
|
|
|
810 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
811 "setpriority(%d) failed", ccf->priority);
|
|
22
|
812 }
|
|
328
|
813 }
|
|
22
|
814
|
|
328
|
815 if (ccf->rlimit_nofile != NGX_CONF_UNSET) {
|
|
|
816 rlmt.rlim_cur = (rlim_t) ccf->rlimit_nofile;
|
|
|
817 rlmt.rlim_max = (rlim_t) ccf->rlimit_nofile;
|
|
92
|
818
|
|
328
|
819 if (setrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
|
|
|
820 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
821 "setrlimit(RLIMIT_NOFILE, %i) failed",
|
|
|
822 ccf->rlimit_nofile);
|
|
92
|
823 }
|
|
328
|
824 }
|
|
92
|
825
|
|
328
|
826 if (ccf->rlimit_core != NGX_CONF_UNSET_SIZE) {
|
|
|
827 rlmt.rlim_cur = (rlim_t) ccf->rlimit_core;
|
|
|
828 rlmt.rlim_max = (rlim_t) ccf->rlimit_core;
|
|
138
|
829
|
|
328
|
830 if (setrlimit(RLIMIT_CORE, &rlmt) == -1) {
|
|
|
831 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
832 "setrlimit(RLIMIT_CORE, %i) failed",
|
|
|
833 ccf->rlimit_core);
|
|
138
|
834 }
|
|
328
|
835 }
|
|
138
|
836
|
|
92
|
837 #ifdef RLIMIT_SIGPENDING
|
|
328
|
838 if (ccf->rlimit_sigpending != NGX_CONF_UNSET) {
|
|
|
839 rlmt.rlim_cur = (rlim_t) ccf->rlimit_sigpending;
|
|
|
840 rlmt.rlim_max = (rlim_t) ccf->rlimit_sigpending;
|
|
92
|
841
|
|
328
|
842 if (setrlimit(RLIMIT_SIGPENDING, &rlmt) == -1) {
|
|
|
843 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
844 "setrlimit(RLIMIT_SIGPENDING, %i) failed",
|
|
|
845 ccf->rlimit_sigpending);
|
|
92
|
846 }
|
|
328
|
847 }
|
|
92
|
848 #endif
|
|
|
849
|
|
328
|
850 if (geteuid() == 0) {
|
|
16
|
851 if (setgid(ccf->group) == -1) {
|
|
|
852 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
853 "setgid(%d) failed", ccf->group);
|
|
|
854 /* fatal */
|
|
|
855 exit(2);
|
|
|
856 }
|
|
|
857
|
|
22
|
858 if (initgroups(ccf->username, ccf->group) == -1) {
|
|
|
859 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
860 "initgroups(%s, %d) failed",
|
|
|
861 ccf->username, ccf->group);
|
|
|
862 }
|
|
|
863
|
|
16
|
864 if (setuid(ccf->user) == -1) {
|
|
|
865 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
866 "setuid(%d) failed", ccf->user);
|
|
|
867 /* fatal */
|
|
|
868 exit(2);
|
|
|
869 }
|
|
|
870 }
|
|
|
871
|
|
126
|
872 #if (NGX_HAVE_SCHED_SETAFFINITY)
|
|
|
873
|
|
|
874 if (cpu_affinity) {
|
|
|
875 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
|
876 "sched_setaffinity(0x%08Xl)", cpu_affinity);
|
|
|
877
|
|
|
878 if (sched_setaffinity(0, 32, (cpu_set_t *) &cpu_affinity) == -1) {
|
|
|
879 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
880 "sched_setaffinity(0x%08Xl) failed", cpu_affinity);
|
|
|
881 }
|
|
|
882 }
|
|
|
883
|
|
|
884 #endif
|
|
|
885
|
|
16
|
886 #if (NGX_HAVE_PR_SET_DUMPABLE)
|
|
|
887
|
|
|
888 /* allow coredump after setuid() in Linux 2.4.x */
|
|
|
889
|
|
|
890 if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1) {
|
|
|
891 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
892 "prctl(PR_SET_DUMPABLE) failed");
|
|
|
893 }
|
|
|
894
|
|
|
895 #endif
|
|
|
896
|
|
70
|
897 if (ccf->working_directory.len) {
|
|
72
|
898 if (chdir((char *) ccf->working_directory.data) == -1) {
|
|
70
|
899 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
900 "chdir(\"%s\") failed", ccf->working_directory.data);
|
|
|
901 /* fatal */
|
|
|
902 exit(2);
|
|
|
903 }
|
|
|
904 }
|
|
|
905
|
|
16
|
906 sigemptyset(&set);
|
|
|
907
|
|
|
908 if (sigprocmask(SIG_SETMASK, &set, NULL) == -1) {
|
|
|
909 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
910 "sigprocmask() failed");
|
|
|
911 }
|
|
|
912
|
|
|
913 ngx_init_temp_number();
|
|
|
914
|
|
|
915 /*
|
|
|
916 * disable deleting previous events for the listening sockets because
|
|
|
917 * in the worker processes there are no events at all at this point
|
|
126
|
918 */
|
|
16
|
919 ls = cycle->listening.elts;
|
|
|
920 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
92
|
921 ls[i].previous = NULL;
|
|
16
|
922 }
|
|
|
923
|
|
|
924 for (i = 0; ngx_modules[i]; i++) {
|
|
|
925 if (ngx_modules[i]->init_process) {
|
|
|
926 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
|
|
|
927 /* fatal */
|
|
|
928 exit(2);
|
|
|
929 }
|
|
|
930 }
|
|
|
931 }
|
|
|
932
|
|
|
933 for (n = 0; n < ngx_last_process; n++) {
|
|
|
934
|
|
|
935 if (ngx_processes[n].pid == -1) {
|
|
|
936 continue;
|
|
|
937 }
|
|
|
938
|
|
|
939 if (n == ngx_process_slot) {
|
|
|
940 continue;
|
|
|
941 }
|
|
|
942
|
|
|
943 if (ngx_processes[n].channel[1] == -1) {
|
|
|
944 continue;
|
|
|
945 }
|
|
|
946
|
|
|
947 if (close(ngx_processes[n].channel[1]) == -1) {
|
|
|
948 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
949 "close() channel failed");
|
|
|
950 }
|
|
|
951 }
|
|
|
952
|
|
|
953 if (close(ngx_processes[ngx_process_slot].channel[0]) == -1) {
|
|
|
954 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
955 "close() channel failed");
|
|
|
956 }
|
|
|
957
|
|
|
958 #if 0
|
|
|
959 ngx_last_process = 0;
|
|
|
960 #endif
|
|
|
961
|
|
|
962 if (ngx_add_channel_event(cycle, ngx_channel, NGX_READ_EVENT,
|
|
290
|
963 ngx_channel_handler)
|
|
|
964 == NGX_ERROR)
|
|
16
|
965 {
|
|
|
966 /* fatal */
|
|
|
967 exit(2);
|
|
|
968 }
|
|
|
969 }
|
|
|
970
|
|
|
971
|
|
50
|
972 static void
|
|
122
|
973 ngx_worker_process_exit(ngx_cycle_t *cycle)
|
|
|
974 {
|
|
|
975 ngx_uint_t i;
|
|
|
976 ngx_connection_t *c;
|
|
|
977
|
|
|
978 #if (NGX_THREADS)
|
|
|
979 ngx_terminate = 1;
|
|
|
980
|
|
|
981 ngx_wakeup_worker_threads(cycle);
|
|
|
982 #endif
|
|
|
983
|
|
|
984 for (i = 0; ngx_modules[i]; i++) {
|
|
|
985 if (ngx_modules[i]->exit_process) {
|
|
|
986 ngx_modules[i]->exit_process(cycle);
|
|
|
987 }
|
|
|
988 }
|
|
|
989
|
|
136
|
990 if (ngx_quit) {
|
|
|
991 c = cycle->connections;
|
|
|
992 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
993 if (c[i].fd != -1
|
|
|
994 && c[i].read
|
|
|
995 && !c[i].read->accept
|
|
|
996 && !c[i].read->channel)
|
|
|
997 {
|
|
|
998 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
999 "open socket #%d left in %ui connection, "
|
|
|
1000 "aborting",
|
|
|
1001 c[i].fd, i);
|
|
|
1002 ngx_debug_point();
|
|
|
1003 }
|
|
122
|
1004 }
|
|
|
1005
|
|
136
|
1006 if (ngx_debug_quit) {
|
|
|
1007 ngx_debug_point();
|
|
|
1008 }
|
|
122
|
1009 }
|
|
|
1010
|
|
|
1011 /*
|
|
332
|
1012 * Copy ngx_cycle->log related data to the special static exit cycle,
|
|
|
1013 * log, and log file structures enough to allow a signal handler to log.
|
|
|
1014 * The handler may be called when standard ngx_cycle->log allocated from
|
|
|
1015 * ngx_cycle->pool is already destroyed.
|
|
122
|
1016 */
|
|
|
1017
|
|
332
|
1018 ngx_exit_log_file.fd = ngx_cycle->log->file->fd;
|
|
|
1019
|
|
|
1020 ngx_exit_log = *ngx_cycle->log;
|
|
|
1021 ngx_exit_log.file = &ngx_exit_log_file;
|
|
|
1022
|
|
|
1023 ngx_exit_cycle.log = &ngx_exit_log;
|
|
|
1024 ngx_cycle = &ngx_exit_cycle;
|
|
|
1025
|
|
122
|
1026 ngx_destroy_pool(cycle->pool);
|
|
332
|
1027
|
|
|
1028 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, "exit");
|
|
122
|
1029
|
|
|
1030 exit(0);
|
|
|
1031 }
|
|
|
1032
|
|
|
1033
|
|
|
1034 static void
|
|
50
|
1035 ngx_channel_handler(ngx_event_t *ev)
|
|
0
|
1036 {
|
|
|
1037 ngx_int_t n;
|
|
92
|
1038 ngx_socket_t fd;
|
|
0
|
1039 ngx_channel_t ch;
|
|
|
1040 ngx_connection_t *c;
|
|
|
1041
|
|
16
|
1042 if (ev->timedout) {
|
|
|
1043 ev->timedout = 0;
|
|
|
1044 return;
|
|
|
1045 }
|
|
|
1046
|
|
0
|
1047 c = ev->data;
|
|
|
1048
|
|
|
1049 ngx_log_debug0(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel handler");
|
|
|
1050
|
|
|
1051 n = ngx_read_channel(c->fd, &ch, sizeof(ngx_channel_t), ev->log);
|
|
|
1052
|
|
10
|
1053 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel: %i", n);
|
|
0
|
1054
|
|
10
|
1055 if (n == NGX_ERROR) {
|
|
92
|
1056
|
|
|
1057 ngx_free_connection(c);
|
|
|
1058
|
|
|
1059 fd = c->fd;
|
|
|
1060 c->fd = (ngx_socket_t) -1;
|
|
|
1061
|
|
|
1062 if (close(fd) == -1) {
|
|
10
|
1063 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
|
|
|
1064 "close() channel failed");
|
|
|
1065 }
|
|
|
1066
|
|
|
1067 return;
|
|
|
1068 }
|
|
|
1069
|
|
290
|
1070 if (ngx_event_flags & NGX_USE_EVENTPORT_EVENT) {
|
|
|
1071 if (ngx_add_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
1072 return;
|
|
|
1073 }
|
|
|
1074 }
|
|
|
1075
|
|
10
|
1076 if (n == NGX_AGAIN) {
|
|
0
|
1077 return;
|
|
|
1078 }
|
|
|
1079
|
|
|
1080 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1081 "channel command: %d", ch.command);
|
|
|
1082
|
|
|
1083 switch (ch.command) {
|
|
|
1084
|
|
|
1085 case NGX_CMD_QUIT:
|
|
|
1086 ngx_quit = 1;
|
|
|
1087 break;
|
|
|
1088
|
|
|
1089 case NGX_CMD_TERMINATE:
|
|
|
1090 ngx_terminate = 1;
|
|
|
1091 break;
|
|
|
1092
|
|
|
1093 case NGX_CMD_REOPEN:
|
|
|
1094 ngx_reopen = 1;
|
|
|
1095 break;
|
|
|
1096
|
|
|
1097 case NGX_CMD_OPEN_CHANNEL:
|
|
|
1098
|
|
|
1099 ngx_log_debug3(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
10
|
1100 "get channel s:%i pid:%P fd:%d", ch.slot, ch.pid, ch.fd);
|
|
0
|
1101
|
|
|
1102 ngx_processes[ch.slot].pid = ch.pid;
|
|
|
1103 ngx_processes[ch.slot].channel[0] = ch.fd;
|
|
|
1104 break;
|
|
|
1105
|
|
|
1106 case NGX_CMD_CLOSE_CHANNEL:
|
|
|
1107
|
|
|
1108 ngx_log_debug4(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
10
|
1109 "close channel s:%i pid:%P our:%P fd:%d",
|
|
0
|
1110 ch.slot, ch.pid, ngx_processes[ch.slot].pid,
|
|
|
1111 ngx_processes[ch.slot].channel[0]);
|
|
|
1112
|
|
|
1113 if (close(ngx_processes[ch.slot].channel[0]) == -1) {
|
|
16
|
1114 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
|
|
|
1115 "close() channel failed");
|
|
0
|
1116 }
|
|
|
1117
|
|
|
1118 ngx_processes[ch.slot].channel[0] = -1;
|
|
|
1119 break;
|
|
|
1120 }
|
|
|
1121 }
|
|
|
1122
|
|
|
1123
|
|
|
1124 #if (NGX_THREADS)
|
|
|
1125
|
|
50
|
1126 static void
|
|
|
1127 ngx_wakeup_worker_threads(ngx_cycle_t *cycle)
|
|
0
|
1128 {
|
|
|
1129 ngx_int_t i;
|
|
|
1130 ngx_uint_t live;
|
|
|
1131
|
|
|
1132 for ( ;; ) {
|
|
|
1133
|
|
|
1134 live = 0;
|
|
|
1135
|
|
|
1136 for (i = 0; i < ngx_threads_n; i++) {
|
|
|
1137 if (ngx_threads[i].state < NGX_THREAD_EXIT) {
|
|
18
|
1138 if (ngx_cond_signal(ngx_threads[i].cv) == NGX_ERROR) {
|
|
|
1139 ngx_threads[i].state = NGX_THREAD_DONE;
|
|
0
|
1140
|
|
|
1141 } else {
|
|
|
1142 live = 1;
|
|
|
1143 }
|
|
|
1144 }
|
|
|
1145
|
|
|
1146 if (ngx_threads[i].state == NGX_THREAD_EXIT) {
|
|
|
1147 ngx_thread_join(ngx_threads[i].tid, NULL);
|
|
|
1148 ngx_threads[i].state = NGX_THREAD_DONE;
|
|
|
1149 }
|
|
|
1150 }
|
|
|
1151
|
|
|
1152 if (live == 0) {
|
|
|
1153 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
1154 "all worker threads are joined");
|
|
|
1155
|
|
|
1156 /* STUB */
|
|
|
1157 ngx_done_events(cycle);
|
|
|
1158 ngx_mutex_destroy(ngx_event_timer_mutex);
|
|
|
1159 ngx_mutex_destroy(ngx_posted_events_mutex);
|
|
|
1160
|
|
|
1161 return;
|
|
|
1162 }
|
|
|
1163
|
|
|
1164 ngx_sched_yield();
|
|
|
1165 }
|
|
|
1166 }
|
|
|
1167
|
|
|
1168
|
|
112
|
1169 static ngx_thread_value_t
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50
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1170 ngx_worker_thread_cycle(void *data)
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0
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1171 {
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1172 ngx_thread_t *thr = data;
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1173
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1174 sigset_t set;
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1175 ngx_err_t err;
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1176 ngx_core_tls_t *tls;
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1177 ngx_cycle_t *cycle;
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1178
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1179 cycle = (ngx_cycle_t *) ngx_cycle;
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1180
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1181 sigemptyset(&set);
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1182 sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
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1183 sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
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1184 sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
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1185
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1186 err = ngx_thread_sigmask(SIG_BLOCK, &set, NULL);
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1187 if (err) {
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1188 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
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1189 ngx_thread_sigmask_n " failed");
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112
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1190 return (ngx_thread_value_t) 1;
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0
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1191 }
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1192
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1193 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
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10
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1194 "thread " NGX_TID_T_FMT " started", ngx_thread_self());
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0
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1195
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1196 ngx_setthrtitle("worker thread");
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1197
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50
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1198 tls = ngx_calloc(sizeof(ngx_core_tls_t), cycle->log);
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1199 if (tls == NULL) {
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112
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1200 return (ngx_thread_value_t) 1;
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0
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1201 }
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1202
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1203 err = ngx_thread_set_tls(ngx_core_tls_key, tls);
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1204 if (err != 0) {
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1205 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
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1206 ngx_thread_set_tls_n " failed");
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112
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1207 return (ngx_thread_value_t) 1;
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0
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1208 }
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1209
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112
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1210 ngx_mutex_lock(ngx_posted_events_mutex);
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0
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1211
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1212 for ( ;; ) {
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1213 thr->state = NGX_THREAD_FREE;
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1214
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1215 if (ngx_cond_wait(thr->cv, ngx_posted_events_mutex) == NGX_ERROR) {
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112
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1216 return (ngx_thread_value_t) 1;
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0
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1217 }
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1218
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1219 if (ngx_terminate) {
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1220 thr->state = NGX_THREAD_EXIT;
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1221
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1222 ngx_mutex_unlock(ngx_posted_events_mutex);
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1223
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1224 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
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10
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1225 "thread " NGX_TID_T_FMT " is done",
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1226 ngx_thread_self());
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0
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1227
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112
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1228 return (ngx_thread_value_t) 0;
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0
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1229 }
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1230
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1231 thr->state = NGX_THREAD_BUSY;
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1232
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1233 if (ngx_event_thread_process_posted(cycle) == NGX_ERROR) {
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112
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1234 return (ngx_thread_value_t) 1;
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0
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1235 }
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1236
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1237 if (ngx_event_thread_process_posted(cycle) == NGX_ERROR) {
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112
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1238 return (ngx_thread_value_t) 1;
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0
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1239 }
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1240
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1241 if (ngx_process_changes) {
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1242 if (ngx_process_changes(cycle, 1) == NGX_ERROR) {
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112
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1243 return (ngx_thread_value_t) 1;
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0
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1244 }
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1245 }
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1246 }
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1247 }
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1248
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1249 #endif
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16
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1250
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1251
|
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50
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1252 #if 0
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1253
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1254 static void
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1255 ngx_garbage_collector_cycle(ngx_cycle_t *cycle, void *data)
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16
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1256 {
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1257 ngx_uint_t i;
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1258 ngx_gc_t ctx;
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1259 ngx_path_t **path;
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1260 ngx_event_t *ev;
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1261
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22
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1262 ngx_worker_process_init(cycle, 0);
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16
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1263
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92
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1264 ev = &cycle->read_events0[ngx_channel];
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16
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1265
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1266 ngx_accept_mutex = NULL;
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1267
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1268 ngx_setproctitle("garbage collector");
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1269
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|
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1270 #if 0
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1271 ngx_add_timer(ev, 60 * 1000);
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1272 #endif
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1273
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1274 for ( ;; ) {
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1275
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1276 if (ngx_terminate || ngx_quit) {
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26
|
1277 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
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16
|
1278 exit(0);
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|
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1279 }
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|
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1280
|
|
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1281 if (ngx_reopen) {
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1282 ngx_reopen = 0;
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26
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1283 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
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16
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1284 ngx_reopen_files(cycle, -1);
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1285 }
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1286
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|
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1287 path = cycle->pathes.elts;
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1288 for (i = 0; i < cycle->pathes.nelts; i++) {
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1289 ctx.path = path[i];
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|
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1290 ctx.log = cycle->log;
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28
|
1291 ctx.handler = path[i]->cleaner;
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16
|
1292
|
|
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1293 ngx_collect_garbage(&ctx, &path[i]->name, 0);
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1294 }
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1295
|
|
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1296 ngx_add_timer(ev, 60 * 60 * 1000);
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|
|
1297
|
|
112
|
1298 ngx_process_events_and_timers(cycle);
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16
|
1299 }
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1300 }
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50
|
1301
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|
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1302 #endif
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