0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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660
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4 * Copyright (C) Nginx, Inc.
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0
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5 */
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6
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7
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8 #include <ngx_config.h>
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9 #include <ngx_core.h>
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10 #include <ngx_event.h>
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11 #include <ngx_channel.h>
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12
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13
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14 static void ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t n,
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50
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15 ngx_int_t type);
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514
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16 static void ngx_start_cache_manager_processes(ngx_cycle_t *cycle,
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17 ngx_uint_t respawn);
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18 static void ngx_pass_open_channel(ngx_cycle_t *cycle, ngx_channel_t *ch);
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0
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19 static void ngx_signal_worker_processes(ngx_cycle_t *cycle, int signo);
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340
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20 static ngx_uint_t ngx_reap_children(ngx_cycle_t *cycle);
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122
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21 static void ngx_master_process_exit(ngx_cycle_t *cycle);
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0
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22 static void ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data);
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692
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23 static void ngx_worker_process_init(ngx_cycle_t *cycle, ngx_int_t worker);
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122
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24 static void ngx_worker_process_exit(ngx_cycle_t *cycle);
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0
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25 static void ngx_channel_handler(ngx_event_t *ev);
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26 #if (NGX_THREADS)
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27 static void ngx_wakeup_worker_threads(ngx_cycle_t *cycle);
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112
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28 static ngx_thread_value_t ngx_worker_thread_cycle(void *data);
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0
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29 #endif
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468
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30 static void ngx_cache_manager_process_cycle(ngx_cycle_t *cycle, void *data);
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31 static void ngx_cache_manager_process_handler(ngx_event_t *ev);
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514
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32 static void ngx_cache_loader_process_handler(ngx_event_t *ev);
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0
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33
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34
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35 ngx_uint_t ngx_process;
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36 ngx_pid_t ngx_pid;
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37 ngx_uint_t ngx_threaded;
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38
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39 sig_atomic_t ngx_reap;
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40 sig_atomic_t ngx_sigio;
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518
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41 sig_atomic_t ngx_sigalrm;
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0
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42 sig_atomic_t ngx_terminate;
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43 sig_atomic_t ngx_quit;
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26
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44 sig_atomic_t ngx_debug_quit;
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0
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45 ngx_uint_t ngx_exiting;
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46 sig_atomic_t ngx_reconfigure;
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47 sig_atomic_t ngx_reopen;
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48
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49 sig_atomic_t ngx_change_binary;
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50 ngx_pid_t ngx_new_binary;
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51 ngx_uint_t ngx_inherited;
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52 ngx_uint_t ngx_daemonized;
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53
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54 sig_atomic_t ngx_noaccept;
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55 ngx_uint_t ngx_noaccepting;
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56 ngx_uint_t ngx_restart;
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57
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58
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59 #if (NGX_THREADS)
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60 volatile ngx_thread_t ngx_threads[NGX_MAX_THREADS];
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61 ngx_int_t ngx_threads_n;
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62 #endif
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63
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64
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126
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65 static u_char master_process[] = "master process";
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0
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66
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67
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514
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68 static ngx_cache_manager_ctx_t ngx_cache_manager_ctx = {
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69 ngx_cache_manager_process_handler, "cache manager process", 0
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70 };
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71
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72 static ngx_cache_manager_ctx_t ngx_cache_loader_ctx = {
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73 ngx_cache_loader_process_handler, "cache loader process", 60000
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74 };
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75
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76
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332
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77 static ngx_cycle_t ngx_exit_cycle;
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78 static ngx_log_t ngx_exit_log;
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79 static ngx_open_file_t ngx_exit_log_file;
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80
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81
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50
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82 void
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83 ngx_master_process_cycle(ngx_cycle_t *cycle)
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0
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84 {
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85 char *title;
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86 u_char *p;
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87 size_t size;
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88 ngx_int_t i;
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542
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89 ngx_uint_t n, sigio;
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0
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90 sigset_t set;
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91 struct itimerval itv;
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92 ngx_uint_t live;
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93 ngx_msec_t delay;
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80
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94 ngx_listening_t *ls;
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0
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95 ngx_core_conf_t *ccf;
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96
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97 sigemptyset(&set);
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98 sigaddset(&set, SIGCHLD);
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99 sigaddset(&set, SIGALRM);
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100 sigaddset(&set, SIGIO);
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101 sigaddset(&set, SIGINT);
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102 sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
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103 sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
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104 sigaddset(&set, ngx_signal_value(NGX_NOACCEPT_SIGNAL));
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105 sigaddset(&set, ngx_signal_value(NGX_TERMINATE_SIGNAL));
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106 sigaddset(&set, ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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107 sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
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108
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109 if (sigprocmask(SIG_BLOCK, &set, NULL) == -1) {
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110 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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111 "sigprocmask() failed");
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112 }
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113
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114 sigemptyset(&set);
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115
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116
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117 size = sizeof(master_process);
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118
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2
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119 for (i = 0; i < ngx_argc; i++) {
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120 size += ngx_strlen(ngx_argv[i]) + 1;
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0
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121 }
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122
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382
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123 title = ngx_pnalloc(cycle->pool, size);
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0
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124
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125 p = ngx_cpymem(title, master_process, sizeof(master_process) - 1);
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2
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126 for (i = 0; i < ngx_argc; i++) {
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0
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127 *p++ = ' ';
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2
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128 p = ngx_cpystrn(p, (u_char *) ngx_argv[i], size);
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0
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129 }
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130
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131 ngx_setproctitle(title);
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132
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133
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134 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
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135
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136 ngx_start_worker_processes(cycle, ccf->worker_processes,
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137 NGX_PROCESS_RESPAWN);
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514
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138 ngx_start_cache_manager_processes(cycle, 0);
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0
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139
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140 ngx_new_binary = 0;
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141 delay = 0;
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542
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142 sigio = 0;
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0
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143 live = 1;
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144
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145 for ( ;; ) {
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146 if (delay) {
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518
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147 if (ngx_sigalrm) {
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542
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148 sigio = 0;
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518
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149 delay *= 2;
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150 ngx_sigalrm = 0;
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151 }
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0
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152
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153 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
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518
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154 "termination cycle: %d", delay);
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0
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155
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156 itv.it_interval.tv_sec = 0;
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157 itv.it_interval.tv_usec = 0;
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158 itv.it_value.tv_sec = delay / 1000;
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159 itv.it_value.tv_usec = (delay % 1000 ) * 1000;
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160
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161 if (setitimer(ITIMER_REAL, &itv, NULL) == -1) {
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162 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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163 "setitimer() failed");
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164 }
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165 }
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166
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167 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "sigsuspend");
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168
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169 sigsuspend(&set);
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170
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566
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171 ngx_time_update();
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0
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172
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544
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173 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
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542
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174 "wake up, sigio %i", sigio);
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0
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175
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176 if (ngx_reap) {
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177 ngx_reap = 0;
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340
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178 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "reap children");
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0
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179
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340
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180 live = ngx_reap_children(cycle);
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0
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181 }
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182
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183 if (!live && (ngx_terminate || ngx_quit)) {
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122
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184 ngx_master_process_exit(cycle);
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0
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185 }
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186
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187 if (ngx_terminate) {
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188 if (delay == 0) {
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189 delay = 50;
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190 }
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191
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542
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192 if (sigio) {
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193 sigio--;
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194 continue;
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195 }
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196
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197 sigio = ccf->worker_processes + 2 /* cache processes */;
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198
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0
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199 if (delay > 1000) {
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200 ngx_signal_worker_processes(cycle, SIGKILL);
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201 } else {
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202 ngx_signal_worker_processes(cycle,
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203 ngx_signal_value(NGX_TERMINATE_SIGNAL));
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204 }
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205
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206 continue;
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207 }
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208
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209 if (ngx_quit) {
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210 ngx_signal_worker_processes(cycle,
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211 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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80
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212
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213 ls = cycle->listening.elts;
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214 for (n = 0; n < cycle->listening.nelts; n++) {
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215 if (ngx_close_socket(ls[n].fd) == -1) {
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216 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_socket_errno,
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217 ngx_close_socket_n " %V failed",
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218 &ls[n].addr_text);
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219 }
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220 }
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221 cycle->listening.nelts = 0;
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222
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0
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223 continue;
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224 }
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225
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226 if (ngx_reconfigure) {
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227 ngx_reconfigure = 0;
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228
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229 if (ngx_new_binary) {
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230 ngx_start_worker_processes(cycle, ccf->worker_processes,
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231 NGX_PROCESS_RESPAWN);
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514
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232 ngx_start_cache_manager_processes(cycle, 0);
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0
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233 ngx_noaccepting = 0;
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234
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235 continue;
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236 }
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237
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26
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238 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
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0
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239
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240 cycle = ngx_init_cycle(cycle);
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241 if (cycle == NULL) {
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242 cycle = (ngx_cycle_t *) ngx_cycle;
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243 continue;
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244 }
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245
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246 ngx_cycle = cycle;
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247 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
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248 ngx_core_module);
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249 ngx_start_worker_processes(cycle, ccf->worker_processes,
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250 NGX_PROCESS_JUST_RESPAWN);
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514
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251 ngx_start_cache_manager_processes(cycle, 1);
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664
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252
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253 /* allow new processes to start */
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254 ngx_msleep(100);
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255
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0
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256 live = 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 if (ngx_restart) {
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262 ngx_restart = 0;
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263 ngx_start_worker_processes(cycle, ccf->worker_processes,
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264 NGX_PROCESS_RESPAWN);
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514
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265 ngx_start_cache_manager_processes(cycle, 0);
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0
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266 live = 1;
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267 }
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268
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269 if (ngx_reopen) {
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270 ngx_reopen = 0;
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26
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271 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
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0
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272 ngx_reopen_files(cycle, ccf->user);
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273 ngx_signal_worker_processes(cycle,
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274 ngx_signal_value(NGX_REOPEN_SIGNAL));
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275 }
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276
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277 if (ngx_change_binary) {
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278 ngx_change_binary = 0;
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26
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279 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "changing binary");
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2
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280 ngx_new_binary = ngx_exec_new_binary(cycle, ngx_argv);
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0
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281 }
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282
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283 if (ngx_noaccept) {
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284 ngx_noaccept = 0;
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285 ngx_noaccepting = 1;
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286 ngx_signal_worker_processes(cycle,
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287 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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288 }
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289 }
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290 }
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291
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292
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50
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293 void
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294 ngx_single_process_cycle(ngx_cycle_t *cycle)
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0
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295 {
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296 ngx_uint_t i;
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297
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610
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298 if (ngx_set_environment(cycle, NULL) == NULL) {
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299 /* fatal */
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300 exit(2);
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301 }
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302
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0
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303 for (i = 0; ngx_modules[i]; i++) {
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304 if (ngx_modules[i]->init_process) {
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305 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
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306 /* fatal */
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307 exit(2);
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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 for ( ;; ) {
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313 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
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314
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112
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315 ngx_process_events_and_timers(cycle);
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0
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316
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317 if (ngx_terminate || ngx_quit) {
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120
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318
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319 for (i = 0; ngx_modules[i]; i++) {
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320 if (ngx_modules[i]->exit_process) {
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321 ngx_modules[i]->exit_process(cycle);
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322 }
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323 }
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324
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122
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325 ngx_master_process_exit(cycle);
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0
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326 }
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327
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328 if (ngx_reconfigure) {
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329 ngx_reconfigure = 0;
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26
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330 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
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0
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331
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332 cycle = ngx_init_cycle(cycle);
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333 if (cycle == NULL) {
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334 cycle = (ngx_cycle_t *) ngx_cycle;
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335 continue;
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336 }
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337
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338 ngx_cycle = cycle;
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339 }
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340
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341 if (ngx_reopen) {
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342 ngx_reopen = 0;
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26
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343 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
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0
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344 ngx_reopen_files(cycle, (ngx_uid_t) -1);
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345 }
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346 }
|
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347 }
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348
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349
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50
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350 static void
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351 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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352 {
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514
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353 ngx_int_t i;
|
106
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354 ngx_channel_t ch;
|
0
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355
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26
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356 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start worker processes");
|
0
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357
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358 ch.command = NGX_CMD_OPEN_CHANNEL;
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359
|
126
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360 for (i = 0; i < n; i++) {
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361
|
692
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362 ngx_spawn_process(cycle, ngx_worker_process_cycle,
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363 (void *) (intptr_t) i, "worker process", type);
|
0
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364
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365 ch.pid = ngx_processes[ngx_process_slot].pid;
|
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366 ch.slot = ngx_process_slot;
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367 ch.fd = ngx_processes[ngx_process_slot].channel[0];
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368
|
514
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369 ngx_pass_open_channel(cycle, &ch);
|
0
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370 }
|
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371 }
|
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372
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373
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50
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374 static void
|
514
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375 ngx_start_cache_manager_processes(ngx_cycle_t *cycle, ngx_uint_t respawn)
|
16
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376 {
|
514
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377 ngx_uint_t i, manager, loader;
|
464
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378 ngx_path_t **path;
|
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379 ngx_channel_t ch;
|
16
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380
|
514
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381 manager = 0;
|
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382 loader = 0;
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383
|
688
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384 path = ngx_cycle->paths.elts;
|
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385 for (i = 0; i < ngx_cycle->paths.nelts; i++) {
|
514
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386
|
|
387 if (path[i]->manager) {
|
|
388 manager = 1;
|
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389 }
|
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390
|
|
391 if (path[i]->loader) {
|
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392 loader = 1;
|
464
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393 }
|
|
394 }
|
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395
|
514
|
396 if (manager == 0) {
|
|
397 return;
|
|
398 }
|
464
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399
|
514
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400 ngx_spawn_process(cycle, ngx_cache_manager_process_cycle,
|
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401 &ngx_cache_manager_ctx, "cache manager process",
|
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402 respawn ? NGX_PROCESS_JUST_RESPAWN : NGX_PROCESS_RESPAWN);
|
16
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403
|
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404 ch.command = NGX_CMD_OPEN_CHANNEL;
|
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405 ch.pid = ngx_processes[ngx_process_slot].pid;
|
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406 ch.slot = ngx_process_slot;
|
|
407 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
408
|
514
|
409 ngx_pass_open_channel(cycle, &ch);
|
|
410
|
|
411 if (loader == 0) {
|
|
412 return;
|
|
413 }
|
|
414
|
|
415 ngx_spawn_process(cycle, ngx_cache_manager_process_cycle,
|
|
416 &ngx_cache_loader_ctx, "cache loader process",
|
|
417 respawn ? NGX_PROCESS_JUST_SPAWN : NGX_PROCESS_NORESPAWN);
|
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418
|
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419 ch.command = NGX_CMD_OPEN_CHANNEL;
|
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420 ch.pid = ngx_processes[ngx_process_slot].pid;
|
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421 ch.slot = ngx_process_slot;
|
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422 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
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423
|
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424 ngx_pass_open_channel(cycle, &ch);
|
|
425 }
|
|
426
|
|
427
|
|
428 static void
|
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429 ngx_pass_open_channel(ngx_cycle_t *cycle, ngx_channel_t *ch)
|
|
430 {
|
|
431 ngx_int_t i;
|
|
432
|
16
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433 for (i = 0; i < ngx_last_process; i++) {
|
|
434
|
|
435 if (i == ngx_process_slot
|
|
436 || ngx_processes[i].pid == -1
|
|
437 || ngx_processes[i].channel[0] == -1)
|
|
438 {
|
|
439 continue;
|
|
440 }
|
|
441
|
|
442 ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
443 "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",
|
514
|
444 ch->slot, ch->pid, ch->fd,
|
16
|
445 i, ngx_processes[i].pid,
|
|
446 ngx_processes[i].channel[0]);
|
|
447
|
|
448 /* TODO: NGX_AGAIN */
|
|
449
|
|
450 ngx_write_channel(ngx_processes[i].channel[0],
|
514
|
451 ch, sizeof(ngx_channel_t), cycle->log);
|
16
|
452 }
|
|
453 }
|
|
454
|
|
455
|
50
|
456 static void
|
|
457 ngx_signal_worker_processes(ngx_cycle_t *cycle, int signo)
|
0
|
458 {
|
|
459 ngx_int_t i;
|
|
460 ngx_err_t err;
|
|
461 ngx_channel_t ch;
|
|
462
|
342
|
463 #if (NGX_BROKEN_SCM_RIGHTS)
|
|
464
|
|
465 ch.command = 0;
|
|
466
|
|
467 #else
|
|
468
|
0
|
469 switch (signo) {
|
|
470
|
|
471 case ngx_signal_value(NGX_SHUTDOWN_SIGNAL):
|
|
472 ch.command = NGX_CMD_QUIT;
|
|
473 break;
|
|
474
|
|
475 case ngx_signal_value(NGX_TERMINATE_SIGNAL):
|
|
476 ch.command = NGX_CMD_TERMINATE;
|
|
477 break;
|
|
478
|
|
479 case ngx_signal_value(NGX_REOPEN_SIGNAL):
|
|
480 ch.command = NGX_CMD_REOPEN;
|
|
481 break;
|
|
482
|
|
483 default:
|
|
484 ch.command = 0;
|
|
485 }
|
|
486
|
342
|
487 #endif
|
|
488
|
0
|
489 ch.fd = -1;
|
|
490
|
|
491
|
|
492 for (i = 0; i < ngx_last_process; i++) {
|
|
493
|
|
494 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
10
|
495 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
0
|
496 i,
|
|
497 ngx_processes[i].pid,
|
|
498 ngx_processes[i].exiting,
|
|
499 ngx_processes[i].exited,
|
|
500 ngx_processes[i].detached,
|
|
501 ngx_processes[i].respawn,
|
514
|
502 ngx_processes[i].just_spawn);
|
0
|
503
|
|
504 if (ngx_processes[i].detached || ngx_processes[i].pid == -1) {
|
|
505 continue;
|
|
506 }
|
|
507
|
514
|
508 if (ngx_processes[i].just_spawn) {
|
|
509 ngx_processes[i].just_spawn = 0;
|
0
|
510 continue;
|
|
511 }
|
|
512
|
|
513 if (ngx_processes[i].exiting
|
|
514 && signo == ngx_signal_value(NGX_SHUTDOWN_SIGNAL))
|
|
515 {
|
|
516 continue;
|
|
517 }
|
|
518
|
|
519 if (ch.command) {
|
|
520 if (ngx_write_channel(ngx_processes[i].channel[0],
|
290
|
521 &ch, sizeof(ngx_channel_t), cycle->log)
|
|
522 == NGX_OK)
|
0
|
523 {
|
|
524 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
525 ngx_processes[i].exiting = 1;
|
|
526 }
|
|
527
|
|
528 continue;
|
|
529 }
|
|
530 }
|
|
531
|
|
532 ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
10
|
533 "kill (%P, %d)" , ngx_processes[i].pid, signo);
|
0
|
534
|
|
535 if (kill(ngx_processes[i].pid, signo) == -1) {
|
|
536 err = ngx_errno;
|
|
537 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
518
|
538 "kill(%P, %d) failed", ngx_processes[i].pid, signo);
|
0
|
539
|
|
540 if (err == NGX_ESRCH) {
|
|
541 ngx_processes[i].exited = 1;
|
|
542 ngx_processes[i].exiting = 0;
|
|
543 ngx_reap = 1;
|
|
544 }
|
|
545
|
|
546 continue;
|
|
547 }
|
|
548
|
|
549 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
550 ngx_processes[i].exiting = 1;
|
|
551 }
|
|
552 }
|
|
553 }
|
|
554
|
|
555
|
50
|
556 static ngx_uint_t
|
340
|
557 ngx_reap_children(ngx_cycle_t *cycle)
|
0
|
558 {
|
92
|
559 ngx_int_t i, n;
|
|
560 ngx_uint_t live;
|
|
561 ngx_channel_t ch;
|
|
562 ngx_core_conf_t *ccf;
|
0
|
563
|
|
564 ch.command = NGX_CMD_CLOSE_CHANNEL;
|
|
565 ch.fd = -1;
|
|
566
|
|
567 live = 0;
|
|
568 for (i = 0; i < ngx_last_process; i++) {
|
|
569
|
|
570 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
10
|
571 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
0
|
572 i,
|
|
573 ngx_processes[i].pid,
|
|
574 ngx_processes[i].exiting,
|
|
575 ngx_processes[i].exited,
|
|
576 ngx_processes[i].detached,
|
|
577 ngx_processes[i].respawn,
|
514
|
578 ngx_processes[i].just_spawn);
|
0
|
579
|
|
580 if (ngx_processes[i].pid == -1) {
|
|
581 continue;
|
|
582 }
|
|
583
|
|
584 if (ngx_processes[i].exited) {
|
|
585
|
|
586 if (!ngx_processes[i].detached) {
|
|
587 ngx_close_channel(ngx_processes[i].channel, cycle->log);
|
|
588
|
|
589 ngx_processes[i].channel[0] = -1;
|
|
590 ngx_processes[i].channel[1] = -1;
|
|
591
|
|
592 ch.pid = ngx_processes[i].pid;
|
|
593 ch.slot = i;
|
|
594
|
|
595 for (n = 0; n < ngx_last_process; n++) {
|
|
596 if (ngx_processes[n].exited
|
|
597 || ngx_processes[n].pid == -1
|
|
598 || ngx_processes[n].channel[0] == -1)
|
|
599 {
|
|
600 continue;
|
|
601 }
|
|
602
|
|
603 ngx_log_debug3(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
10
|
604 "pass close channel s:%i pid:%P to:%P",
|
|
605 ch.slot, ch.pid, ngx_processes[n].pid);
|
0
|
606
|
|
607 /* TODO: NGX_AGAIN */
|
|
608
|
|
609 ngx_write_channel(ngx_processes[n].channel[0],
|
|
610 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
611 }
|
|
612 }
|
|
613
|
|
614 if (ngx_processes[i].respawn
|
|
615 && !ngx_processes[i].exiting
|
|
616 && !ngx_terminate
|
|
617 && !ngx_quit)
|
|
618 {
|
|
619 if (ngx_spawn_process(cycle, ngx_processes[i].proc,
|
|
620 ngx_processes[i].data,
|
|
621 ngx_processes[i].name, i)
|
92
|
622 == NGX_INVALID_PID)
|
0
|
623 {
|
|
624 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
640
|
625 "could not respawn %s",
|
|
626 ngx_processes[i].name);
|
0
|
627 continue;
|
|
628 }
|
|
629
|
22
|
630
|
|
631 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
632 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
633 ch.slot = ngx_process_slot;
|
|
634 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
635
|
514
|
636 ngx_pass_open_channel(cycle, &ch);
|
22
|
637
|
0
|
638 live = 1;
|
|
639
|
|
640 continue;
|
|
641 }
|
|
642
|
|
643 if (ngx_processes[i].pid == ngx_new_binary) {
|
92
|
644
|
|
645 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
|
|
646 ngx_core_module);
|
|
647
|
|
648 if (ngx_rename_file((char *) ccf->oldpid.data,
|
|
649 (char *) ccf->pid.data)
|
|
650 != NGX_OK)
|
|
651 {
|
|
652 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
653 ngx_rename_file_n " %s back to %s failed "
|
|
654 "after the new binary process \"%s\" exited",
|
|
655 ccf->oldpid.data, ccf->pid.data, ngx_argv[0]);
|
|
656 }
|
|
657
|
0
|
658 ngx_new_binary = 0;
|
|
659 if (ngx_noaccepting) {
|
|
660 ngx_restart = 1;
|
|
661 ngx_noaccepting = 0;
|
|
662 }
|
|
663 }
|
|
664
|
|
665 if (i == ngx_last_process - 1) {
|
|
666 ngx_last_process--;
|
|
667
|
|
668 } else {
|
|
669 ngx_processes[i].pid = -1;
|
|
670 }
|
|
671
|
|
672 } else if (ngx_processes[i].exiting || !ngx_processes[i].detached) {
|
|
673 live = 1;
|
|
674 }
|
|
675 }
|
|
676
|
|
677 return live;
|
|
678 }
|
|
679
|
|
680
|
50
|
681 static void
|
122
|
682 ngx_master_process_exit(ngx_cycle_t *cycle)
|
0
|
683 {
|
120
|
684 ngx_uint_t i;
|
|
685
|
0
|
686 ngx_delete_pidfile(cycle);
|
|
687
|
26
|
688 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit");
|
0
|
689
|
120
|
690 for (i = 0; ngx_modules[i]; i++) {
|
|
691 if (ngx_modules[i]->exit_master) {
|
|
692 ngx_modules[i]->exit_master(cycle);
|
|
693 }
|
|
694 }
|
|
695
|
538
|
696 ngx_close_listening_sockets(cycle);
|
|
697
|
54
|
698 /*
|
332
|
699 * Copy ngx_cycle->log related data to the special static exit cycle,
|
|
700 * log, and log file structures enough to allow a signal handler to log.
|
|
701 * The handler may be called when standard ngx_cycle->log allocated from
|
|
702 * ngx_cycle->pool is already destroyed.
|
54
|
703 */
|
|
704
|
332
|
705 ngx_exit_log_file.fd = ngx_cycle->log->file->fd;
|
|
706
|
|
707 ngx_exit_log = *ngx_cycle->log;
|
|
708 ngx_exit_log.file = &ngx_exit_log_file;
|
|
709
|
|
710 ngx_exit_cycle.log = &ngx_exit_log;
|
678
|
711 ngx_exit_cycle.files = ngx_cycle->files;
|
|
712 ngx_exit_cycle.files_n = ngx_cycle->files_n;
|
332
|
713 ngx_cycle = &ngx_exit_cycle;
|
|
714
|
0
|
715 ngx_destroy_pool(cycle->pool);
|
|
716
|
|
717 exit(0);
|
|
718 }
|
|
719
|
|
720
|
50
|
721 static void
|
|
722 ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data)
|
0
|
723 {
|
692
|
724 ngx_int_t worker = (intptr_t) data;
|
|
725
|
290
|
726 ngx_uint_t i;
|
|
727 ngx_connection_t *c;
|
18
|
728
|
552
|
729 ngx_process = NGX_PROCESS_WORKER;
|
|
730
|
692
|
731 ngx_worker_process_init(cycle, worker);
|
0
|
732
|
|
733 ngx_setproctitle("worker process");
|
|
734
|
|
735 #if (NGX_THREADS)
|
356
|
736 {
|
|
737 ngx_int_t n;
|
|
738 ngx_err_t err;
|
|
739 ngx_core_conf_t *ccf;
|
0
|
740
|
18
|
741 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
742
|
0
|
743 if (ngx_threads_n) {
|
290
|
744 if (ngx_init_threads(ngx_threads_n, ccf->thread_stack_size, cycle)
|
|
745 == NGX_ERROR)
|
0
|
746 {
|
|
747 /* fatal */
|
|
748 exit(2);
|
|
749 }
|
|
750
|
|
751 err = ngx_thread_key_create(&ngx_core_tls_key);
|
|
752 if (err != 0) {
|
|
753 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
754 ngx_thread_key_create_n " failed");
|
|
755 /* fatal */
|
|
756 exit(2);
|
|
757 }
|
|
758
|
|
759 for (n = 0; n < ngx_threads_n; n++) {
|
|
760
|
50
|
761 ngx_threads[n].cv = ngx_cond_init(cycle->log);
|
|
762
|
|
763 if (ngx_threads[n].cv == NULL) {
|
0
|
764 /* fatal */
|
|
765 exit(2);
|
|
766 }
|
|
767
|
|
768 if (ngx_create_thread((ngx_tid_t *) &ngx_threads[n].tid,
|
|
769 ngx_worker_thread_cycle,
|
290
|
770 (void *) &ngx_threads[n], cycle->log)
|
|
771 != 0)
|
0
|
772 {
|
|
773 /* fatal */
|
|
774 exit(2);
|
|
775 }
|
|
776 }
|
|
777 }
|
356
|
778 }
|
0
|
779 #endif
|
|
780
|
|
781 for ( ;; ) {
|
290
|
782
|
|
783 if (ngx_exiting) {
|
|
784
|
|
785 c = cycle->connections;
|
|
786
|
|
787 for (i = 0; i < cycle->connection_n; i++) {
|
|
788
|
|
789 /* THREAD: lock */
|
0
|
790
|
290
|
791 if (c[i].fd != -1 && c[i].idle) {
|
|
792 c[i].close = 1;
|
|
793 c[i].read->handler(c[i].read);
|
|
794 }
|
|
795 }
|
|
796
|
|
797 if (ngx_event_timer_rbtree.root == ngx_event_timer_rbtree.sentinel)
|
|
798 {
|
|
799 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
800
|
|
801 ngx_worker_process_exit(cycle);
|
|
802 }
|
0
|
803 }
|
|
804
|
|
805 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
|
|
806
|
112
|
807 ngx_process_events_and_timers(cycle);
|
0
|
808
|
|
809 if (ngx_terminate) {
|
26
|
810 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
0
|
811
|
122
|
812 ngx_worker_process_exit(cycle);
|
0
|
813 }
|
|
814
|
|
815 if (ngx_quit) {
|
|
816 ngx_quit = 0;
|
26
|
817 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
0
|
818 "gracefully shutting down");
|
|
819 ngx_setproctitle("worker process is shutting down");
|
|
820
|
|
821 if (!ngx_exiting) {
|
|
822 ngx_close_listening_sockets(cycle);
|
|
823 ngx_exiting = 1;
|
|
824 }
|
|
825 }
|
|
826
|
|
827 if (ngx_reopen) {
|
|
828 ngx_reopen = 0;
|
26
|
829 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
0
|
830 ngx_reopen_files(cycle, -1);
|
|
831 }
|
|
832 }
|
|
833 }
|
|
834
|
|
835
|
50
|
836 static void
|
692
|
837 ngx_worker_process_init(ngx_cycle_t *cycle, ngx_int_t worker)
|
16
|
838 {
|
278
|
839 sigset_t set;
|
692
|
840 uint64_t cpu_affinity;
|
278
|
841 ngx_int_t n;
|
|
842 ngx_uint_t i;
|
|
843 struct rlimit rlmt;
|
|
844 ngx_core_conf_t *ccf;
|
|
845 ngx_listening_t *ls;
|
16
|
846
|
278
|
847 if (ngx_set_environment(cycle, NULL) == NULL) {
|
|
848 /* fatal */
|
|
849 exit(2);
|
|
850 }
|
|
851
|
16
|
852 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
853
|
692
|
854 if (worker >= 0 && ccf->priority != 0) {
|
328
|
855 if (setpriority(PRIO_PROCESS, 0, ccf->priority) == -1) {
|
|
856 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
857 "setpriority(%d) failed", ccf->priority);
|
22
|
858 }
|
328
|
859 }
|
22
|
860
|
328
|
861 if (ccf->rlimit_nofile != NGX_CONF_UNSET) {
|
|
862 rlmt.rlim_cur = (rlim_t) ccf->rlimit_nofile;
|
|
863 rlmt.rlim_max = (rlim_t) ccf->rlimit_nofile;
|
92
|
864
|
328
|
865 if (setrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
|
|
866 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
867 "setrlimit(RLIMIT_NOFILE, %i) failed",
|
|
868 ccf->rlimit_nofile);
|
92
|
869 }
|
328
|
870 }
|
92
|
871
|
598
|
872 if (ccf->rlimit_core != NGX_CONF_UNSET) {
|
328
|
873 rlmt.rlim_cur = (rlim_t) ccf->rlimit_core;
|
|
874 rlmt.rlim_max = (rlim_t) ccf->rlimit_core;
|
138
|
875
|
328
|
876 if (setrlimit(RLIMIT_CORE, &rlmt) == -1) {
|
|
877 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
598
|
878 "setrlimit(RLIMIT_CORE, %O) failed",
|
328
|
879 ccf->rlimit_core);
|
138
|
880 }
|
328
|
881 }
|
138
|
882
|
92
|
883 #ifdef RLIMIT_SIGPENDING
|
328
|
884 if (ccf->rlimit_sigpending != NGX_CONF_UNSET) {
|
|
885 rlmt.rlim_cur = (rlim_t) ccf->rlimit_sigpending;
|
|
886 rlmt.rlim_max = (rlim_t) ccf->rlimit_sigpending;
|
92
|
887
|
328
|
888 if (setrlimit(RLIMIT_SIGPENDING, &rlmt) == -1) {
|
|
889 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
890 "setrlimit(RLIMIT_SIGPENDING, %i) failed",
|
|
891 ccf->rlimit_sigpending);
|
92
|
892 }
|
328
|
893 }
|
92
|
894 #endif
|
|
895
|
328
|
896 if (geteuid() == 0) {
|
16
|
897 if (setgid(ccf->group) == -1) {
|
|
898 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
899 "setgid(%d) failed", ccf->group);
|
|
900 /* fatal */
|
|
901 exit(2);
|
|
902 }
|
|
903
|
22
|
904 if (initgroups(ccf->username, ccf->group) == -1) {
|
|
905 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
906 "initgroups(%s, %d) failed",
|
|
907 ccf->username, ccf->group);
|
|
908 }
|
|
909
|
16
|
910 if (setuid(ccf->user) == -1) {
|
|
911 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
912 "setuid(%d) failed", ccf->user);
|
|
913 /* fatal */
|
|
914 exit(2);
|
|
915 }
|
|
916 }
|
|
917
|
692
|
918 if (worker >= 0) {
|
|
919 cpu_affinity = ngx_get_cpu_affinity(worker);
|
|
920
|
|
921 if (cpu_affinity) {
|
|
922 ngx_setaffinity(cpu_affinity, cycle->log);
|
|
923 }
|
126
|
924 }
|
|
925
|
16
|
926 #if (NGX_HAVE_PR_SET_DUMPABLE)
|
|
927
|
|
928 /* allow coredump after setuid() in Linux 2.4.x */
|
|
929
|
|
930 if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1) {
|
|
931 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
932 "prctl(PR_SET_DUMPABLE) failed");
|
|
933 }
|
|
934
|
|
935 #endif
|
|
936
|
70
|
937 if (ccf->working_directory.len) {
|
72
|
938 if (chdir((char *) ccf->working_directory.data) == -1) {
|
70
|
939 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
940 "chdir(\"%s\") failed", ccf->working_directory.data);
|
|
941 /* fatal */
|
|
942 exit(2);
|
|
943 }
|
|
944 }
|
|
945
|
16
|
946 sigemptyset(&set);
|
|
947
|
|
948 if (sigprocmask(SIG_SETMASK, &set, NULL) == -1) {
|
|
949 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
950 "sigprocmask() failed");
|
|
951 }
|
|
952
|
|
953 /*
|
|
954 * disable deleting previous events for the listening sockets because
|
|
955 * in the worker processes there are no events at all at this point
|
126
|
956 */
|
16
|
957 ls = cycle->listening.elts;
|
|
958 for (i = 0; i < cycle->listening.nelts; i++) {
|
92
|
959 ls[i].previous = NULL;
|
16
|
960 }
|
|
961
|
|
962 for (i = 0; ngx_modules[i]; i++) {
|
|
963 if (ngx_modules[i]->init_process) {
|
|
964 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
|
|
965 /* fatal */
|
|
966 exit(2);
|
|
967 }
|
|
968 }
|
|
969 }
|
|
970
|
|
971 for (n = 0; n < ngx_last_process; n++) {
|
|
972
|
|
973 if (ngx_processes[n].pid == -1) {
|
|
974 continue;
|
|
975 }
|
|
976
|
|
977 if (n == ngx_process_slot) {
|
|
978 continue;
|
|
979 }
|
|
980
|
|
981 if (ngx_processes[n].channel[1] == -1) {
|
|
982 continue;
|
|
983 }
|
|
984
|
|
985 if (close(ngx_processes[n].channel[1]) == -1) {
|
|
986 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
987 "close() channel failed");
|
|
988 }
|
|
989 }
|
|
990
|
|
991 if (close(ngx_processes[ngx_process_slot].channel[0]) == -1) {
|
|
992 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
993 "close() channel failed");
|
|
994 }
|
|
995
|
|
996 #if 0
|
|
997 ngx_last_process = 0;
|
|
998 #endif
|
|
999
|
|
1000 if (ngx_add_channel_event(cycle, ngx_channel, NGX_READ_EVENT,
|
290
|
1001 ngx_channel_handler)
|
|
1002 == NGX_ERROR)
|
16
|
1003 {
|
|
1004 /* fatal */
|
|
1005 exit(2);
|
|
1006 }
|
|
1007 }
|
|
1008
|
|
1009
|
50
|
1010 static void
|
122
|
1011 ngx_worker_process_exit(ngx_cycle_t *cycle)
|
|
1012 {
|
|
1013 ngx_uint_t i;
|
|
1014 ngx_connection_t *c;
|
|
1015
|
|
1016 #if (NGX_THREADS)
|
|
1017 ngx_terminate = 1;
|
|
1018
|
|
1019 ngx_wakeup_worker_threads(cycle);
|
|
1020 #endif
|
|
1021
|
|
1022 for (i = 0; ngx_modules[i]; i++) {
|
|
1023 if (ngx_modules[i]->exit_process) {
|
|
1024 ngx_modules[i]->exit_process(cycle);
|
|
1025 }
|
|
1026 }
|
|
1027
|
366
|
1028 if (ngx_exiting) {
|
136
|
1029 c = cycle->connections;
|
|
1030 for (i = 0; i < cycle->connection_n; i++) {
|
|
1031 if (c[i].fd != -1
|
|
1032 && c[i].read
|
|
1033 && !c[i].read->accept
|
366
|
1034 && !c[i].read->channel
|
|
1035 && !c[i].read->resolver)
|
136
|
1036 {
|
|
1037 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
514
|
1038 "open socket #%d left in connection %ui",
|
|
1039 c[i].fd, i);
|
|
1040 ngx_debug_quit = 1;
|
136
|
1041 }
|
122
|
1042 }
|
|
1043
|
136
|
1044 if (ngx_debug_quit) {
|
514
|
1045 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, "aborting");
|
136
|
1046 ngx_debug_point();
|
|
1047 }
|
122
|
1048 }
|
|
1049
|
|
1050 /*
|
332
|
1051 * Copy ngx_cycle->log related data to the special static exit cycle,
|
|
1052 * log, and log file structures enough to allow a signal handler to log.
|
|
1053 * The handler may be called when standard ngx_cycle->log allocated from
|
|
1054 * ngx_cycle->pool is already destroyed.
|
122
|
1055 */
|
|
1056
|
332
|
1057 ngx_exit_log_file.fd = ngx_cycle->log->file->fd;
|
|
1058
|
|
1059 ngx_exit_log = *ngx_cycle->log;
|
|
1060 ngx_exit_log.file = &ngx_exit_log_file;
|
|
1061
|
|
1062 ngx_exit_cycle.log = &ngx_exit_log;
|
678
|
1063 ngx_exit_cycle.files = ngx_cycle->files;
|
|
1064 ngx_exit_cycle.files_n = ngx_cycle->files_n;
|
332
|
1065 ngx_cycle = &ngx_exit_cycle;
|
|
1066
|
122
|
1067 ngx_destroy_pool(cycle->pool);
|
332
|
1068
|
|
1069 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, "exit");
|
122
|
1070
|
|
1071 exit(0);
|
|
1072 }
|
|
1073
|
|
1074
|
|
1075 static void
|
50
|
1076 ngx_channel_handler(ngx_event_t *ev)
|
0
|
1077 {
|
|
1078 ngx_int_t n;
|
|
1079 ngx_channel_t ch;
|
|
1080 ngx_connection_t *c;
|
|
1081
|
16
|
1082 if (ev->timedout) {
|
|
1083 ev->timedout = 0;
|
|
1084 return;
|
|
1085 }
|
|
1086
|
0
|
1087 c = ev->data;
|
|
1088
|
|
1089 ngx_log_debug0(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel handler");
|
|
1090
|
378
|
1091 for ( ;; ) {
|
0
|
1092
|
378
|
1093 n = ngx_read_channel(c->fd, &ch, sizeof(ngx_channel_t), ev->log);
|
|
1094
|
|
1095 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel: %i", n);
|
0
|
1096
|
378
|
1097 if (n == NGX_ERROR) {
|
366
|
1098
|
378
|
1099 if (ngx_event_flags & NGX_USE_EPOLL_EVENT) {
|
|
1100 ngx_del_conn(c, 0);
|
|
1101 }
|
|
1102
|
|
1103 ngx_close_connection(c);
|
|
1104 return;
|
366
|
1105 }
|
|
1106
|
378
|
1107 if (ngx_event_flags & NGX_USE_EVENTPORT_EVENT) {
|
|
1108 if (ngx_add_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
1109 return;
|
|
1110 }
|
|
1111 }
|
10
|
1112
|
378
|
1113 if (n == NGX_AGAIN) {
|
290
|
1114 return;
|
|
1115 }
|
378
|
1116
|
|
1117 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
1118 "channel command: %d", ch.command);
|
290
|
1119
|
378
|
1120 switch (ch.command) {
|
0
|
1121
|
378
|
1122 case NGX_CMD_QUIT:
|
|
1123 ngx_quit = 1;
|
|
1124 break;
|
0
|
1125
|
378
|
1126 case NGX_CMD_TERMINATE:
|
|
1127 ngx_terminate = 1;
|
|
1128 break;
|
0
|
1129
|
378
|
1130 case NGX_CMD_REOPEN:
|
|
1131 ngx_reopen = 1;
|
|
1132 break;
|
0
|
1133
|
378
|
1134 case NGX_CMD_OPEN_CHANNEL:
|
0
|
1135
|
378
|
1136 ngx_log_debug3(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
1137 "get channel s:%i pid:%P fd:%d",
|
|
1138 ch.slot, ch.pid, ch.fd);
|
0
|
1139
|
378
|
1140 ngx_processes[ch.slot].pid = ch.pid;
|
|
1141 ngx_processes[ch.slot].channel[0] = ch.fd;
|
|
1142 break;
|
0
|
1143
|
378
|
1144 case NGX_CMD_CLOSE_CHANNEL:
|
0
|
1145
|
378
|
1146 ngx_log_debug4(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
1147 "close channel s:%i pid:%P our:%P fd:%d",
|
|
1148 ch.slot, ch.pid, ngx_processes[ch.slot].pid,
|
|
1149 ngx_processes[ch.slot].channel[0]);
|
0
|
1150
|
378
|
1151 if (close(ngx_processes[ch.slot].channel[0]) == -1) {
|
|
1152 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
|
|
1153 "close() channel failed");
|
|
1154 }
|
|
1155
|
|
1156 ngx_processes[ch.slot].channel[0] = -1;
|
|
1157 break;
|
0
|
1158 }
|
|
1159 }
|
|
1160 }
|
|
1161
|
|
1162
|
|
1163 #if (NGX_THREADS)
|
|
1164
|
50
|
1165 static void
|
|
1166 ngx_wakeup_worker_threads(ngx_cycle_t *cycle)
|
0
|
1167 {
|
|
1168 ngx_int_t i;
|
|
1169 ngx_uint_t live;
|
|
1170
|
|
1171 for ( ;; ) {
|
|
1172
|
|
1173 live = 0;
|
|
1174
|
|
1175 for (i = 0; i < ngx_threads_n; i++) {
|
|
1176 if (ngx_threads[i].state < NGX_THREAD_EXIT) {
|
18
|
1177 if (ngx_cond_signal(ngx_threads[i].cv) == NGX_ERROR) {
|
|
1178 ngx_threads[i].state = NGX_THREAD_DONE;
|
0
|
1179
|
|
1180 } else {
|
|
1181 live = 1;
|
|
1182 }
|
|
1183 }
|
|
1184
|
|
1185 if (ngx_threads[i].state == NGX_THREAD_EXIT) {
|
|
1186 ngx_thread_join(ngx_threads[i].tid, NULL);
|
|
1187 ngx_threads[i].state = NGX_THREAD_DONE;
|
|
1188 }
|
|
1189 }
|
|
1190
|
|
1191 if (live == 0) {
|
|
1192 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
1193 "all worker threads are joined");
|
|
1194
|
|
1195 /* STUB */
|
|
1196 ngx_done_events(cycle);
|
|
1197 ngx_mutex_destroy(ngx_event_timer_mutex);
|
|
1198 ngx_mutex_destroy(ngx_posted_events_mutex);
|
|
1199
|
|
1200 return;
|
|
1201 }
|
|
1202
|
|
1203 ngx_sched_yield();
|
|
1204 }
|
|
1205 }
|
|
1206
|
|
1207
|
112
|
1208 static ngx_thread_value_t
|
50
|
1209 ngx_worker_thread_cycle(void *data)
|
0
|
1210 {
|
|
1211 ngx_thread_t *thr = data;
|
|
1212
|
|
1213 sigset_t set;
|
|
1214 ngx_err_t err;
|
|
1215 ngx_core_tls_t *tls;
|
|
1216 ngx_cycle_t *cycle;
|
|
1217
|
|
1218 cycle = (ngx_cycle_t *) ngx_cycle;
|
|
1219
|
|
1220 sigemptyset(&set);
|
|
1221 sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
|
|
1222 sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
|
|
1223 sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
|
|
1224
|
|
1225 err = ngx_thread_sigmask(SIG_BLOCK, &set, NULL);
|
|
1226 if (err) {
|
|
1227 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
1228 ngx_thread_sigmask_n " failed");
|
112
|
1229 return (ngx_thread_value_t) 1;
|
0
|
1230 }
|
|
1231
|
|
1232 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
10
|
1233 "thread " NGX_TID_T_FMT " started", ngx_thread_self());
|
0
|
1234
|
|
1235 ngx_setthrtitle("worker thread");
|
|
1236
|
50
|
1237 tls = ngx_calloc(sizeof(ngx_core_tls_t), cycle->log);
|
|
1238 if (tls == NULL) {
|
112
|
1239 return (ngx_thread_value_t) 1;
|
0
|
1240 }
|
|
1241
|
|
1242 err = ngx_thread_set_tls(ngx_core_tls_key, tls);
|
|
1243 if (err != 0) {
|
|
1244 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
1245 ngx_thread_set_tls_n " failed");
|
112
|
1246 return (ngx_thread_value_t) 1;
|
0
|
1247 }
|
|
1248
|
112
|
1249 ngx_mutex_lock(ngx_posted_events_mutex);
|
0
|
1250
|
|
1251 for ( ;; ) {
|
|
1252 thr->state = NGX_THREAD_FREE;
|
|
1253
|
|
1254 if (ngx_cond_wait(thr->cv, ngx_posted_events_mutex) == NGX_ERROR) {
|
112
|
1255 return (ngx_thread_value_t) 1;
|
0
|
1256 }
|
|
1257
|
|
1258 if (ngx_terminate) {
|
|
1259 thr->state = NGX_THREAD_EXIT;
|
|
1260
|
|
1261 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
1262
|
|
1263 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
10
|
1264 "thread " NGX_TID_T_FMT " is done",
|
|
1265 ngx_thread_self());
|
0
|
1266
|
112
|
1267 return (ngx_thread_value_t) 0;
|
0
|
1268 }
|
|
1269
|
|
1270 thr->state = NGX_THREAD_BUSY;
|
|
1271
|
|
1272 if (ngx_event_thread_process_posted(cycle) == NGX_ERROR) {
|
112
|
1273 return (ngx_thread_value_t) 1;
|
0
|
1274 }
|
|
1275
|
|
1276 if (ngx_event_thread_process_posted(cycle) == NGX_ERROR) {
|
112
|
1277 return (ngx_thread_value_t) 1;
|
0
|
1278 }
|
|
1279
|
|
1280 if (ngx_process_changes) {
|
|
1281 if (ngx_process_changes(cycle, 1) == NGX_ERROR) {
|
112
|
1282 return (ngx_thread_value_t) 1;
|
0
|
1283 }
|
|
1284 }
|
|
1285 }
|
|
1286 }
|
|
1287
|
|
1288 #endif
|
16
|
1289
|
|
1290
|
50
|
1291 static void
|
468
|
1292 ngx_cache_manager_process_cycle(ngx_cycle_t *cycle, void *data)
|
16
|
1293 {
|
514
|
1294 ngx_cache_manager_ctx_t *ctx = data;
|
|
1295
|
464
|
1296 void *ident[4];
|
|
1297 ngx_event_t ev;
|
|
1298
|
692
|
1299 /*
|
|
1300 * Set correct process type since closing listening Unix domain socket
|
|
1301 * in a master process also removes the Unix domain socket file.
|
|
1302 */
|
552
|
1303 ngx_process = NGX_PROCESS_HELPER;
|
|
1304
|
692
|
1305 ngx_close_listening_sockets(cycle);
|
16
|
1306
|
692
|
1307 /* Set a moderate number of connections for a helper process. */
|
|
1308 cycle->connection_n = 512;
|
|
1309
|
|
1310 ngx_worker_process_init(cycle, -1);
|
16
|
1311
|
464
|
1312 ngx_memzero(&ev, sizeof(ngx_event_t));
|
514
|
1313 ev.handler = ctx->handler;
|
464
|
1314 ev.data = ident;
|
|
1315 ev.log = cycle->log;
|
|
1316 ident[3] = (void *) -1;
|
16
|
1317
|
464
|
1318 ngx_use_accept_mutex = 0;
|
|
1319
|
514
|
1320 ngx_setproctitle(ctx->name);
|
464
|
1321
|
514
|
1322 ngx_add_timer(&ev, ctx->delay);
|
16
|
1323
|
|
1324 for ( ;; ) {
|
|
1325
|
|
1326 if (ngx_terminate || ngx_quit) {
|
26
|
1327 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
16
|
1328 exit(0);
|
|
1329 }
|
|
1330
|
|
1331 if (ngx_reopen) {
|
|
1332 ngx_reopen = 0;
|
26
|
1333 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
16
|
1334 ngx_reopen_files(cycle, -1);
|
|
1335 }
|
|
1336
|
112
|
1337 ngx_process_events_and_timers(cycle);
|
16
|
1338 }
|
|
1339 }
|
50
|
1340
|
464
|
1341
|
|
1342 static void
|
468
|
1343 ngx_cache_manager_process_handler(ngx_event_t *ev)
|
464
|
1344 {
|
|
1345 time_t next, n;
|
|
1346 ngx_uint_t i;
|
|
1347 ngx_path_t **path;
|
|
1348
|
|
1349 next = 60 * 60;
|
|
1350
|
688
|
1351 path = ngx_cycle->paths.elts;
|
|
1352 for (i = 0; i < ngx_cycle->paths.nelts; i++) {
|
464
|
1353
|
468
|
1354 if (path[i]->manager) {
|
|
1355 n = path[i]->manager(path[i]->data);
|
464
|
1356
|
|
1357 next = (n <= next) ? n : next;
|
|
1358
|
566
|
1359 ngx_time_update();
|
464
|
1360 }
|
|
1361 }
|
|
1362
|
|
1363 if (next == 0) {
|
|
1364 next = 1;
|
|
1365 }
|
|
1366
|
|
1367 ngx_add_timer(ev, next * 1000);
|
|
1368 }
|
514
|
1369
|
|
1370
|
|
1371 static void
|
|
1372 ngx_cache_loader_process_handler(ngx_event_t *ev)
|
|
1373 {
|
|
1374 ngx_uint_t i;
|
|
1375 ngx_path_t **path;
|
|
1376 ngx_cycle_t *cycle;
|
|
1377
|
|
1378 cycle = (ngx_cycle_t *) ngx_cycle;
|
|
1379
|
688
|
1380 path = cycle->paths.elts;
|
|
1381 for (i = 0; i < cycle->paths.nelts; i++) {
|
514
|
1382
|
|
1383 if (ngx_terminate || ngx_quit) {
|
|
1384 break;
|
|
1385 }
|
|
1386
|
|
1387 if (path[i]->loader) {
|
|
1388 path[i]->loader(path[i]->data);
|
566
|
1389 ngx_time_update();
|
514
|
1390 }
|
|
1391 }
|
|
1392
|
|
1393 exit(0);
|
|
1394 }
|