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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525
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15 static void ngx_start_cache_manager_processes(ngx_cycle_t *cycle,
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16 ngx_uint_t respawn);
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17 static void ngx_pass_open_channel(ngx_cycle_t *cycle, ngx_channel_t *ch);
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0
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18 static void ngx_signal_worker_processes(ngx_cycle_t *cycle, int signo);
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340
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19 static ngx_uint_t ngx_reap_children(ngx_cycle_t *cycle);
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122
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20 static void ngx_master_process_exit(ngx_cycle_t *cycle);
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0
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21 static void ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data);
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22
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22 static void ngx_worker_process_init(ngx_cycle_t *cycle, ngx_uint_t priority);
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122
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23 static void ngx_worker_process_exit(ngx_cycle_t *cycle);
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0
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24 static void ngx_channel_handler(ngx_event_t *ev);
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25 #if (NGX_THREADS)
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26 static void ngx_wakeup_worker_threads(ngx_cycle_t *cycle);
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112
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27 static ngx_thread_value_t ngx_worker_thread_cycle(void *data);
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0
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28 #endif
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477
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29 static void ngx_cache_manager_process_cycle(ngx_cycle_t *cycle, void *data);
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30 static void ngx_cache_manager_process_handler(ngx_event_t *ev);
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525
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31 static void ngx_cache_loader_process_handler(ngx_event_t *ev);
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0
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32
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33
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34 ngx_uint_t ngx_process;
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35 ngx_pid_t ngx_pid;
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36 ngx_uint_t ngx_threaded;
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37
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38 sig_atomic_t ngx_reap;
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39 sig_atomic_t ngx_sigio;
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529
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40 sig_atomic_t ngx_sigalrm;
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0
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41 sig_atomic_t ngx_terminate;
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42 sig_atomic_t ngx_quit;
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26
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43 sig_atomic_t ngx_debug_quit;
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0
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44 ngx_uint_t ngx_exiting;
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45 sig_atomic_t ngx_reconfigure;
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46 sig_atomic_t ngx_reopen;
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47
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48 sig_atomic_t ngx_change_binary;
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49 ngx_pid_t ngx_new_binary;
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50 ngx_uint_t ngx_inherited;
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51 ngx_uint_t ngx_daemonized;
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52
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53 sig_atomic_t ngx_noaccept;
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54 ngx_uint_t ngx_noaccepting;
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55 ngx_uint_t ngx_restart;
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56
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57
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58 #if (NGX_THREADS)
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59 volatile ngx_thread_t ngx_threads[NGX_MAX_THREADS];
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60 ngx_int_t ngx_threads_n;
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61 #endif
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62
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63
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126
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64 u_long cpu_affinity;
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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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525
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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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554
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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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525
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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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554
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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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529
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147 if (ngx_sigalrm) {
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554
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148 sigio = 0;
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529
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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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529
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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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579
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171 ngx_time_update();
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0
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172
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556
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173 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
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554
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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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554
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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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525
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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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525
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251 ngx_start_cache_manager_processes(cycle, 1);
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0
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252 live = 1;
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253 ngx_signal_worker_processes(cycle,
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254 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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255 }
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256
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257 if (ngx_restart) {
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258 ngx_restart = 0;
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259 ngx_start_worker_processes(cycle, ccf->worker_processes,
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260 NGX_PROCESS_RESPAWN);
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525
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261 ngx_start_cache_manager_processes(cycle, 0);
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0
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262 live = 1;
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263 }
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264
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265 if (ngx_reopen) {
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266 ngx_reopen = 0;
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26
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267 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
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0
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268 ngx_reopen_files(cycle, ccf->user);
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269 ngx_signal_worker_processes(cycle,
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270 ngx_signal_value(NGX_REOPEN_SIGNAL));
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271 }
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272
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273 if (ngx_change_binary) {
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274 ngx_change_binary = 0;
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26
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275 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "changing binary");
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2
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276 ngx_new_binary = ngx_exec_new_binary(cycle, ngx_argv);
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0
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277 }
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278
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279 if (ngx_noaccept) {
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280 ngx_noaccept = 0;
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281 ngx_noaccepting = 1;
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282 ngx_signal_worker_processes(cycle,
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283 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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284 }
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285 }
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286 }
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287
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288
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50
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289 void
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290 ngx_single_process_cycle(ngx_cycle_t *cycle)
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0
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291 {
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292 ngx_uint_t i;
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293
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623
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294 if (ngx_set_environment(cycle, NULL) == NULL) {
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295 /* fatal */
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296 exit(2);
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297 }
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298
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0
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299 for (i = 0; ngx_modules[i]; i++) {
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300 if (ngx_modules[i]->init_process) {
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301 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
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302 /* fatal */
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303 exit(2);
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304 }
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305 }
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306 }
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307
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308 for ( ;; ) {
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309 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
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310
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112
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311 ngx_process_events_and_timers(cycle);
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0
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312
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313 if (ngx_terminate || ngx_quit) {
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120
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314
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315 for (i = 0; ngx_modules[i]; i++) {
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316 if (ngx_modules[i]->exit_process) {
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317 ngx_modules[i]->exit_process(cycle);
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318 }
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319 }
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320
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122
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321 ngx_master_process_exit(cycle);
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0
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322 }
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323
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324 if (ngx_reconfigure) {
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325 ngx_reconfigure = 0;
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26
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326 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
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0
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327
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328 cycle = ngx_init_cycle(cycle);
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329 if (cycle == NULL) {
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330 cycle = (ngx_cycle_t *) ngx_cycle;
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331 continue;
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332 }
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333
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334 ngx_cycle = cycle;
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335 }
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336
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337 if (ngx_reopen) {
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338 ngx_reopen = 0;
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26
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339 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
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0
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340 ngx_reopen_files(cycle, (ngx_uid_t) -1);
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341 }
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342 }
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343 }
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344
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345
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50
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346 static void
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347 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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348 {
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525
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349 ngx_int_t i;
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106
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350 ngx_channel_t ch;
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0
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351
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26
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352 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start worker processes");
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0
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353
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354 ch.command = NGX_CMD_OPEN_CHANNEL;
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355
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126
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356 for (i = 0; i < n; i++) {
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357
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358 cpu_affinity = ngx_get_cpu_affinity(i);
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359
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0
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360 ngx_spawn_process(cycle, ngx_worker_process_cycle, NULL,
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361 "worker process", type);
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362
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363 ch.pid = ngx_processes[ngx_process_slot].pid;
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364 ch.slot = ngx_process_slot;
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365 ch.fd = ngx_processes[ngx_process_slot].channel[0];
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366
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525
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367 ngx_pass_open_channel(cycle, &ch);
|
0
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368 }
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369 }
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370
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371
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50
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372 static void
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525
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373 ngx_start_cache_manager_processes(ngx_cycle_t *cycle, ngx_uint_t respawn)
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16
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374 {
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525
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375 ngx_uint_t i, manager, loader;
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473
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376 ngx_path_t **path;
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377 ngx_channel_t ch;
|
16
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378
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525
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379 manager = 0;
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380 loader = 0;
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381
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473
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382 path = ngx_cycle->pathes.elts;
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525
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383 for (i = 0; i < ngx_cycle->pathes.nelts; i++) {
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384
|
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385 if (path[i]->manager) {
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386 manager = 1;
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387 }
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388
|
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389 if (path[i]->loader) {
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390 loader = 1;
|
473
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391 }
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392 }
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393
|
525
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394 if (manager == 0) {
|
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395 return;
|
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396 }
|
473
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397
|
525
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398 ngx_spawn_process(cycle, ngx_cache_manager_process_cycle,
|
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399 &ngx_cache_manager_ctx, "cache manager process",
|
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400 respawn ? NGX_PROCESS_JUST_RESPAWN : NGX_PROCESS_RESPAWN);
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16
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401
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402 ch.command = NGX_CMD_OPEN_CHANNEL;
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403 ch.pid = ngx_processes[ngx_process_slot].pid;
|
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404 ch.slot = ngx_process_slot;
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405 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
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406
|
525
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407 ngx_pass_open_channel(cycle, &ch);
|
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408
|
|
409 if (loader == 0) {
|
|
410 return;
|
|
411 }
|
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412
|
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413 ngx_spawn_process(cycle, ngx_cache_manager_process_cycle,
|
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414 &ngx_cache_loader_ctx, "cache loader process",
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415 respawn ? NGX_PROCESS_JUST_SPAWN : NGX_PROCESS_NORESPAWN);
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416
|
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417 ch.command = NGX_CMD_OPEN_CHANNEL;
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418 ch.pid = ngx_processes[ngx_process_slot].pid;
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419 ch.slot = ngx_process_slot;
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420 ch.fd = ngx_processes[ngx_process_slot].channel[0];
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421
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422 ngx_pass_open_channel(cycle, &ch);
|
|
423 }
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424
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425
|
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426 static void
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427 ngx_pass_open_channel(ngx_cycle_t *cycle, ngx_channel_t *ch)
|
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428 {
|
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429 ngx_int_t i;
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430
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16
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431 for (i = 0; i < ngx_last_process; i++) {
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432
|
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433 if (i == ngx_process_slot
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434 || ngx_processes[i].pid == -1
|
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435 || ngx_processes[i].channel[0] == -1)
|
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436 {
|
|
437 continue;
|
|
438 }
|
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439
|
|
440 ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
441 "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",
|
525
|
442 ch->slot, ch->pid, ch->fd,
|
16
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443 i, ngx_processes[i].pid,
|
|
444 ngx_processes[i].channel[0]);
|
|
445
|
|
446 /* TODO: NGX_AGAIN */
|
|
447
|
|
448 ngx_write_channel(ngx_processes[i].channel[0],
|
525
|
449 ch, sizeof(ngx_channel_t), cycle->log);
|
16
|
450 }
|
|
451 }
|
|
452
|
|
453
|
50
|
454 static void
|
|
455 ngx_signal_worker_processes(ngx_cycle_t *cycle, int signo)
|
0
|
456 {
|
|
457 ngx_int_t i;
|
|
458 ngx_err_t err;
|
|
459 ngx_channel_t ch;
|
|
460
|
342
|
461 #if (NGX_BROKEN_SCM_RIGHTS)
|
|
462
|
|
463 ch.command = 0;
|
|
464
|
|
465 #else
|
|
466
|
0
|
467 switch (signo) {
|
|
468
|
|
469 case ngx_signal_value(NGX_SHUTDOWN_SIGNAL):
|
|
470 ch.command = NGX_CMD_QUIT;
|
|
471 break;
|
|
472
|
|
473 case ngx_signal_value(NGX_TERMINATE_SIGNAL):
|
|
474 ch.command = NGX_CMD_TERMINATE;
|
|
475 break;
|
|
476
|
|
477 case ngx_signal_value(NGX_REOPEN_SIGNAL):
|
|
478 ch.command = NGX_CMD_REOPEN;
|
|
479 break;
|
|
480
|
|
481 default:
|
|
482 ch.command = 0;
|
|
483 }
|
|
484
|
342
|
485 #endif
|
|
486
|
0
|
487 ch.fd = -1;
|
|
488
|
|
489
|
|
490 for (i = 0; i < ngx_last_process; i++) {
|
|
491
|
|
492 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
10
|
493 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
0
|
494 i,
|
|
495 ngx_processes[i].pid,
|
|
496 ngx_processes[i].exiting,
|
|
497 ngx_processes[i].exited,
|
|
498 ngx_processes[i].detached,
|
|
499 ngx_processes[i].respawn,
|
525
|
500 ngx_processes[i].just_spawn);
|
0
|
501
|
|
502 if (ngx_processes[i].detached || ngx_processes[i].pid == -1) {
|
|
503 continue;
|
|
504 }
|
|
505
|
525
|
506 if (ngx_processes[i].just_spawn) {
|
|
507 ngx_processes[i].just_spawn = 0;
|
0
|
508 continue;
|
|
509 }
|
|
510
|
|
511 if (ngx_processes[i].exiting
|
|
512 && signo == ngx_signal_value(NGX_SHUTDOWN_SIGNAL))
|
|
513 {
|
|
514 continue;
|
|
515 }
|
|
516
|
|
517 if (ch.command) {
|
|
518 if (ngx_write_channel(ngx_processes[i].channel[0],
|
290
|
519 &ch, sizeof(ngx_channel_t), cycle->log)
|
|
520 == NGX_OK)
|
0
|
521 {
|
|
522 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
523 ngx_processes[i].exiting = 1;
|
|
524 }
|
|
525
|
|
526 continue;
|
|
527 }
|
|
528 }
|
|
529
|
|
530 ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
10
|
531 "kill (%P, %d)" , ngx_processes[i].pid, signo);
|
0
|
532
|
|
533 if (kill(ngx_processes[i].pid, signo) == -1) {
|
|
534 err = ngx_errno;
|
|
535 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
529
|
536 "kill(%P, %d) failed", ngx_processes[i].pid, signo);
|
0
|
537
|
|
538 if (err == NGX_ESRCH) {
|
|
539 ngx_processes[i].exited = 1;
|
|
540 ngx_processes[i].exiting = 0;
|
|
541 ngx_reap = 1;
|
|
542 }
|
|
543
|
|
544 continue;
|
|
545 }
|
|
546
|
|
547 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
548 ngx_processes[i].exiting = 1;
|
|
549 }
|
|
550 }
|
|
551 }
|
|
552
|
|
553
|
50
|
554 static ngx_uint_t
|
340
|
555 ngx_reap_children(ngx_cycle_t *cycle)
|
0
|
556 {
|
92
|
557 ngx_int_t i, n;
|
|
558 ngx_uint_t live;
|
|
559 ngx_channel_t ch;
|
|
560 ngx_core_conf_t *ccf;
|
0
|
561
|
|
562 ch.command = NGX_CMD_CLOSE_CHANNEL;
|
|
563 ch.fd = -1;
|
|
564
|
|
565 live = 0;
|
|
566 for (i = 0; i < ngx_last_process; i++) {
|
|
567
|
|
568 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
10
|
569 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
0
|
570 i,
|
|
571 ngx_processes[i].pid,
|
|
572 ngx_processes[i].exiting,
|
|
573 ngx_processes[i].exited,
|
|
574 ngx_processes[i].detached,
|
|
575 ngx_processes[i].respawn,
|
525
|
576 ngx_processes[i].just_spawn);
|
0
|
577
|
|
578 if (ngx_processes[i].pid == -1) {
|
|
579 continue;
|
|
580 }
|
|
581
|
|
582 if (ngx_processes[i].exited) {
|
|
583
|
|
584 if (!ngx_processes[i].detached) {
|
|
585 ngx_close_channel(ngx_processes[i].channel, cycle->log);
|
|
586
|
|
587 ngx_processes[i].channel[0] = -1;
|
|
588 ngx_processes[i].channel[1] = -1;
|
|
589
|
|
590 ch.pid = ngx_processes[i].pid;
|
|
591 ch.slot = i;
|
|
592
|
|
593 for (n = 0; n < ngx_last_process; n++) {
|
|
594 if (ngx_processes[n].exited
|
|
595 || ngx_processes[n].pid == -1
|
|
596 || ngx_processes[n].channel[0] == -1)
|
|
597 {
|
|
598 continue;
|
|
599 }
|
|
600
|
|
601 ngx_log_debug3(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
10
|
602 "pass close channel s:%i pid:%P to:%P",
|
|
603 ch.slot, ch.pid, ngx_processes[n].pid);
|
0
|
604
|
|
605 /* TODO: NGX_AGAIN */
|
|
606
|
|
607 ngx_write_channel(ngx_processes[n].channel[0],
|
|
608 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
609 }
|
|
610 }
|
|
611
|
|
612 if (ngx_processes[i].respawn
|
|
613 && !ngx_processes[i].exiting
|
|
614 && !ngx_terminate
|
|
615 && !ngx_quit)
|
|
616 {
|
|
617 if (ngx_spawn_process(cycle, ngx_processes[i].proc,
|
|
618 ngx_processes[i].data,
|
|
619 ngx_processes[i].name, i)
|
92
|
620 == NGX_INVALID_PID)
|
0
|
621 {
|
|
622 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
623 "can not respawn %s", ngx_processes[i].name);
|
|
624 continue;
|
|
625 }
|
|
626
|
22
|
627
|
|
628 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
629 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
630 ch.slot = ngx_process_slot;
|
|
631 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
632
|
525
|
633 ngx_pass_open_channel(cycle, &ch);
|
22
|
634
|
0
|
635 live = 1;
|
|
636
|
|
637 continue;
|
|
638 }
|
|
639
|
|
640 if (ngx_processes[i].pid == ngx_new_binary) {
|
92
|
641
|
|
642 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
|
|
643 ngx_core_module);
|
|
644
|
|
645 if (ngx_rename_file((char *) ccf->oldpid.data,
|
|
646 (char *) ccf->pid.data)
|
|
647 != NGX_OK)
|
|
648 {
|
|
649 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
650 ngx_rename_file_n " %s back to %s failed "
|
|
651 "after the new binary process \"%s\" exited",
|
|
652 ccf->oldpid.data, ccf->pid.data, ngx_argv[0]);
|
|
653 }
|
|
654
|
0
|
655 ngx_new_binary = 0;
|
|
656 if (ngx_noaccepting) {
|
|
657 ngx_restart = 1;
|
|
658 ngx_noaccepting = 0;
|
|
659 }
|
|
660 }
|
|
661
|
|
662 if (i == ngx_last_process - 1) {
|
|
663 ngx_last_process--;
|
|
664
|
|
665 } else {
|
|
666 ngx_processes[i].pid = -1;
|
|
667 }
|
|
668
|
|
669 } else if (ngx_processes[i].exiting || !ngx_processes[i].detached) {
|
|
670 live = 1;
|
|
671 }
|
|
672 }
|
|
673
|
|
674 return live;
|
|
675 }
|
|
676
|
|
677
|
50
|
678 static void
|
122
|
679 ngx_master_process_exit(ngx_cycle_t *cycle)
|
0
|
680 {
|
120
|
681 ngx_uint_t i;
|
|
682
|
0
|
683 ngx_delete_pidfile(cycle);
|
|
684
|
26
|
685 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit");
|
0
|
686
|
120
|
687 for (i = 0; ngx_modules[i]; i++) {
|
|
688 if (ngx_modules[i]->exit_master) {
|
|
689 ngx_modules[i]->exit_master(cycle);
|
|
690 }
|
|
691 }
|
|
692
|
550
|
693 ngx_close_listening_sockets(cycle);
|
|
694
|
54
|
695 /*
|
332
|
696 * Copy ngx_cycle->log related data to the special static exit cycle,
|
|
697 * log, and log file structures enough to allow a signal handler to log.
|
|
698 * The handler may be called when standard ngx_cycle->log allocated from
|
|
699 * ngx_cycle->pool is already destroyed.
|
54
|
700 */
|
|
701
|
332
|
702 ngx_exit_log_file.fd = ngx_cycle->log->file->fd;
|
|
703
|
|
704 ngx_exit_log = *ngx_cycle->log;
|
|
705 ngx_exit_log.file = &ngx_exit_log_file;
|
|
706
|
|
707 ngx_exit_cycle.log = &ngx_exit_log;
|
|
708 ngx_cycle = &ngx_exit_cycle;
|
|
709
|
0
|
710 ngx_destroy_pool(cycle->pool);
|
|
711
|
|
712 exit(0);
|
|
713 }
|
|
714
|
|
715
|
50
|
716 static void
|
|
717 ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data)
|
0
|
718 {
|
290
|
719 ngx_uint_t i;
|
|
720 ngx_connection_t *c;
|
18
|
721
|
564
|
722 ngx_process = NGX_PROCESS_WORKER;
|
|
723
|
22
|
724 ngx_worker_process_init(cycle, 1);
|
0
|
725
|
|
726 ngx_setproctitle("worker process");
|
|
727
|
|
728 #if (NGX_THREADS)
|
356
|
729 {
|
|
730 ngx_int_t n;
|
|
731 ngx_err_t err;
|
|
732 ngx_core_conf_t *ccf;
|
0
|
733
|
18
|
734 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
735
|
0
|
736 if (ngx_threads_n) {
|
290
|
737 if (ngx_init_threads(ngx_threads_n, ccf->thread_stack_size, cycle)
|
|
738 == NGX_ERROR)
|
0
|
739 {
|
|
740 /* fatal */
|
|
741 exit(2);
|
|
742 }
|
|
743
|
|
744 err = ngx_thread_key_create(&ngx_core_tls_key);
|
|
745 if (err != 0) {
|
|
746 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
747 ngx_thread_key_create_n " failed");
|
|
748 /* fatal */
|
|
749 exit(2);
|
|
750 }
|
|
751
|
|
752 for (n = 0; n < ngx_threads_n; n++) {
|
|
753
|
50
|
754 ngx_threads[n].cv = ngx_cond_init(cycle->log);
|
|
755
|
|
756 if (ngx_threads[n].cv == NULL) {
|
0
|
757 /* fatal */
|
|
758 exit(2);
|
|
759 }
|
|
760
|
|
761 if (ngx_create_thread((ngx_tid_t *) &ngx_threads[n].tid,
|
|
762 ngx_worker_thread_cycle,
|
290
|
763 (void *) &ngx_threads[n], cycle->log)
|
|
764 != 0)
|
0
|
765 {
|
|
766 /* fatal */
|
|
767 exit(2);
|
|
768 }
|
|
769 }
|
|
770 }
|
356
|
771 }
|
0
|
772 #endif
|
|
773
|
|
774 for ( ;; ) {
|
290
|
775
|
|
776 if (ngx_exiting) {
|
|
777
|
|
778 c = cycle->connections;
|
|
779
|
|
780 for (i = 0; i < cycle->connection_n; i++) {
|
|
781
|
|
782 /* THREAD: lock */
|
0
|
783
|
290
|
784 if (c[i].fd != -1 && c[i].idle) {
|
|
785 c[i].close = 1;
|
|
786 c[i].read->handler(c[i].read);
|
|
787 }
|
|
788 }
|
|
789
|
|
790 if (ngx_event_timer_rbtree.root == ngx_event_timer_rbtree.sentinel)
|
|
791 {
|
|
792 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
793
|
|
794 ngx_worker_process_exit(cycle);
|
|
795 }
|
0
|
796 }
|
|
797
|
|
798 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
|
|
799
|
112
|
800 ngx_process_events_and_timers(cycle);
|
0
|
801
|
|
802 if (ngx_terminate) {
|
26
|
803 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
0
|
804
|
122
|
805 ngx_worker_process_exit(cycle);
|
0
|
806 }
|
|
807
|
|
808 if (ngx_quit) {
|
|
809 ngx_quit = 0;
|
26
|
810 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
0
|
811 "gracefully shutting down");
|
|
812 ngx_setproctitle("worker process is shutting down");
|
|
813
|
|
814 if (!ngx_exiting) {
|
|
815 ngx_close_listening_sockets(cycle);
|
|
816 ngx_exiting = 1;
|
|
817 }
|
|
818 }
|
|
819
|
|
820 if (ngx_reopen) {
|
|
821 ngx_reopen = 0;
|
26
|
822 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
0
|
823 ngx_reopen_files(cycle, -1);
|
|
824 }
|
|
825 }
|
|
826 }
|
|
827
|
|
828
|
50
|
829 static void
|
|
830 ngx_worker_process_init(ngx_cycle_t *cycle, ngx_uint_t priority)
|
16
|
831 {
|
278
|
832 sigset_t set;
|
|
833 ngx_int_t n;
|
|
834 ngx_uint_t i;
|
|
835 struct rlimit rlmt;
|
|
836 ngx_core_conf_t *ccf;
|
|
837 ngx_listening_t *ls;
|
16
|
838
|
278
|
839 if (ngx_set_environment(cycle, NULL) == NULL) {
|
|
840 /* fatal */
|
|
841 exit(2);
|
|
842 }
|
|
843
|
16
|
844 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
845
|
328
|
846 if (priority && ccf->priority != 0) {
|
|
847 if (setpriority(PRIO_PROCESS, 0, ccf->priority) == -1) {
|
|
848 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
849 "setpriority(%d) failed", ccf->priority);
|
22
|
850 }
|
328
|
851 }
|
22
|
852
|
328
|
853 if (ccf->rlimit_nofile != NGX_CONF_UNSET) {
|
|
854 rlmt.rlim_cur = (rlim_t) ccf->rlimit_nofile;
|
|
855 rlmt.rlim_max = (rlim_t) ccf->rlimit_nofile;
|
92
|
856
|
328
|
857 if (setrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
|
|
858 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
859 "setrlimit(RLIMIT_NOFILE, %i) failed",
|
|
860 ccf->rlimit_nofile);
|
92
|
861 }
|
328
|
862 }
|
92
|
863
|
611
|
864 if (ccf->rlimit_core != NGX_CONF_UNSET) {
|
328
|
865 rlmt.rlim_cur = (rlim_t) ccf->rlimit_core;
|
|
866 rlmt.rlim_max = (rlim_t) ccf->rlimit_core;
|
138
|
867
|
328
|
868 if (setrlimit(RLIMIT_CORE, &rlmt) == -1) {
|
|
869 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
611
|
870 "setrlimit(RLIMIT_CORE, %O) failed",
|
328
|
871 ccf->rlimit_core);
|
138
|
872 }
|
328
|
873 }
|
138
|
874
|
92
|
875 #ifdef RLIMIT_SIGPENDING
|
328
|
876 if (ccf->rlimit_sigpending != NGX_CONF_UNSET) {
|
|
877 rlmt.rlim_cur = (rlim_t) ccf->rlimit_sigpending;
|
|
878 rlmt.rlim_max = (rlim_t) ccf->rlimit_sigpending;
|
92
|
879
|
328
|
880 if (setrlimit(RLIMIT_SIGPENDING, &rlmt) == -1) {
|
|
881 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
882 "setrlimit(RLIMIT_SIGPENDING, %i) failed",
|
|
883 ccf->rlimit_sigpending);
|
92
|
884 }
|
328
|
885 }
|
92
|
886 #endif
|
|
887
|
328
|
888 if (geteuid() == 0) {
|
16
|
889 if (setgid(ccf->group) == -1) {
|
|
890 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
891 "setgid(%d) failed", ccf->group);
|
|
892 /* fatal */
|
|
893 exit(2);
|
|
894 }
|
|
895
|
22
|
896 if (initgroups(ccf->username, ccf->group) == -1) {
|
|
897 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
898 "initgroups(%s, %d) failed",
|
|
899 ccf->username, ccf->group);
|
|
900 }
|
|
901
|
16
|
902 if (setuid(ccf->user) == -1) {
|
|
903 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
904 "setuid(%d) failed", ccf->user);
|
|
905 /* fatal */
|
|
906 exit(2);
|
|
907 }
|
|
908 }
|
|
909
|
126
|
910 #if (NGX_HAVE_SCHED_SETAFFINITY)
|
|
911
|
|
912 if (cpu_affinity) {
|
|
913 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
914 "sched_setaffinity(0x%08Xl)", cpu_affinity);
|
|
915
|
|
916 if (sched_setaffinity(0, 32, (cpu_set_t *) &cpu_affinity) == -1) {
|
|
917 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
918 "sched_setaffinity(0x%08Xl) failed", cpu_affinity);
|
|
919 }
|
|
920 }
|
|
921
|
|
922 #endif
|
|
923
|
16
|
924 #if (NGX_HAVE_PR_SET_DUMPABLE)
|
|
925
|
|
926 /* allow coredump after setuid() in Linux 2.4.x */
|
|
927
|
|
928 if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1) {
|
|
929 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
930 "prctl(PR_SET_DUMPABLE) failed");
|
|
931 }
|
|
932
|
|
933 #endif
|
|
934
|
70
|
935 if (ccf->working_directory.len) {
|
72
|
936 if (chdir((char *) ccf->working_directory.data) == -1) {
|
70
|
937 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
938 "chdir(\"%s\") failed", ccf->working_directory.data);
|
|
939 /* fatal */
|
|
940 exit(2);
|
|
941 }
|
|
942 }
|
|
943
|
16
|
944 sigemptyset(&set);
|
|
945
|
|
946 if (sigprocmask(SIG_SETMASK, &set, NULL) == -1) {
|
|
947 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
948 "sigprocmask() failed");
|
|
949 }
|
|
950
|
|
951 /*
|
|
952 * disable deleting previous events for the listening sockets because
|
|
953 * in the worker processes there are no events at all at this point
|
126
|
954 */
|
16
|
955 ls = cycle->listening.elts;
|
|
956 for (i = 0; i < cycle->listening.nelts; i++) {
|
92
|
957 ls[i].previous = NULL;
|
16
|
958 }
|
|
959
|
|
960 for (i = 0; ngx_modules[i]; i++) {
|
|
961 if (ngx_modules[i]->init_process) {
|
|
962 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
|
|
963 /* fatal */
|
|
964 exit(2);
|
|
965 }
|
|
966 }
|
|
967 }
|
|
968
|
|
969 for (n = 0; n < ngx_last_process; n++) {
|
|
970
|
|
971 if (ngx_processes[n].pid == -1) {
|
|
972 continue;
|
|
973 }
|
|
974
|
|
975 if (n == ngx_process_slot) {
|
|
976 continue;
|
|
977 }
|
|
978
|
|
979 if (ngx_processes[n].channel[1] == -1) {
|
|
980 continue;
|
|
981 }
|
|
982
|
|
983 if (close(ngx_processes[n].channel[1]) == -1) {
|
|
984 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
985 "close() channel failed");
|
|
986 }
|
|
987 }
|
|
988
|
|
989 if (close(ngx_processes[ngx_process_slot].channel[0]) == -1) {
|
|
990 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
991 "close() channel failed");
|
|
992 }
|
|
993
|
|
994 #if 0
|
|
995 ngx_last_process = 0;
|
|
996 #endif
|
|
997
|
|
998 if (ngx_add_channel_event(cycle, ngx_channel, NGX_READ_EVENT,
|
290
|
999 ngx_channel_handler)
|
|
1000 == NGX_ERROR)
|
16
|
1001 {
|
|
1002 /* fatal */
|
|
1003 exit(2);
|
|
1004 }
|
|
1005 }
|
|
1006
|
|
1007
|
50
|
1008 static void
|
122
|
1009 ngx_worker_process_exit(ngx_cycle_t *cycle)
|
|
1010 {
|
|
1011 ngx_uint_t i;
|
|
1012 ngx_connection_t *c;
|
|
1013
|
|
1014 #if (NGX_THREADS)
|
|
1015 ngx_terminate = 1;
|
|
1016
|
|
1017 ngx_wakeup_worker_threads(cycle);
|
|
1018 #endif
|
|
1019
|
|
1020 for (i = 0; ngx_modules[i]; i++) {
|
|
1021 if (ngx_modules[i]->exit_process) {
|
|
1022 ngx_modules[i]->exit_process(cycle);
|
|
1023 }
|
|
1024 }
|
|
1025
|
366
|
1026 if (ngx_exiting) {
|
136
|
1027 c = cycle->connections;
|
|
1028 for (i = 0; i < cycle->connection_n; i++) {
|
|
1029 if (c[i].fd != -1
|
|
1030 && c[i].read
|
|
1031 && !c[i].read->accept
|
366
|
1032 && !c[i].read->channel
|
|
1033 && !c[i].read->resolver)
|
136
|
1034 {
|
|
1035 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
525
|
1036 "open socket #%d left in connection %ui",
|
|
1037 c[i].fd, i);
|
|
1038 ngx_debug_quit = 1;
|
136
|
1039 }
|
122
|
1040 }
|
|
1041
|
136
|
1042 if (ngx_debug_quit) {
|
525
|
1043 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, "aborting");
|
136
|
1044 ngx_debug_point();
|
|
1045 }
|
122
|
1046 }
|
|
1047
|
|
1048 /*
|
332
|
1049 * Copy ngx_cycle->log related data to the special static exit cycle,
|
|
1050 * log, and log file structures enough to allow a signal handler to log.
|
|
1051 * The handler may be called when standard ngx_cycle->log allocated from
|
|
1052 * ngx_cycle->pool is already destroyed.
|
122
|
1053 */
|
|
1054
|
332
|
1055 ngx_exit_log_file.fd = ngx_cycle->log->file->fd;
|
|
1056
|
|
1057 ngx_exit_log = *ngx_cycle->log;
|
|
1058 ngx_exit_log.file = &ngx_exit_log_file;
|
|
1059
|
|
1060 ngx_exit_cycle.log = &ngx_exit_log;
|
|
1061 ngx_cycle = &ngx_exit_cycle;
|
|
1062
|
122
|
1063 ngx_destroy_pool(cycle->pool);
|
332
|
1064
|
|
1065 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, "exit");
|
122
|
1066
|
|
1067 exit(0);
|
|
1068 }
|
|
1069
|
|
1070
|
|
1071 static void
|
50
|
1072 ngx_channel_handler(ngx_event_t *ev)
|
0
|
1073 {
|
|
1074 ngx_int_t n;
|
|
1075 ngx_channel_t ch;
|
|
1076 ngx_connection_t *c;
|
|
1077
|
16
|
1078 if (ev->timedout) {
|
|
1079 ev->timedout = 0;
|
|
1080 return;
|
|
1081 }
|
|
1082
|
0
|
1083 c = ev->data;
|
|
1084
|
|
1085 ngx_log_debug0(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel handler");
|
|
1086
|
378
|
1087 for ( ;; ) {
|
0
|
1088
|
378
|
1089 n = ngx_read_channel(c->fd, &ch, sizeof(ngx_channel_t), ev->log);
|
|
1090
|
|
1091 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel: %i", n);
|
0
|
1092
|
378
|
1093 if (n == NGX_ERROR) {
|
366
|
1094
|
378
|
1095 if (ngx_event_flags & NGX_USE_EPOLL_EVENT) {
|
|
1096 ngx_del_conn(c, 0);
|
|
1097 }
|
|
1098
|
|
1099 ngx_close_connection(c);
|
|
1100 return;
|
366
|
1101 }
|
|
1102
|
378
|
1103 if (ngx_event_flags & NGX_USE_EVENTPORT_EVENT) {
|
|
1104 if (ngx_add_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
1105 return;
|
|
1106 }
|
|
1107 }
|
10
|
1108
|
378
|
1109 if (n == NGX_AGAIN) {
|
290
|
1110 return;
|
|
1111 }
|
378
|
1112
|
|
1113 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
1114 "channel command: %d", ch.command);
|
290
|
1115
|
378
|
1116 switch (ch.command) {
|
0
|
1117
|
378
|
1118 case NGX_CMD_QUIT:
|
|
1119 ngx_quit = 1;
|
|
1120 break;
|
0
|
1121
|
378
|
1122 case NGX_CMD_TERMINATE:
|
|
1123 ngx_terminate = 1;
|
|
1124 break;
|
0
|
1125
|
378
|
1126 case NGX_CMD_REOPEN:
|
|
1127 ngx_reopen = 1;
|
|
1128 break;
|
0
|
1129
|
378
|
1130 case NGX_CMD_OPEN_CHANNEL:
|
0
|
1131
|
378
|
1132 ngx_log_debug3(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
1133 "get channel s:%i pid:%P fd:%d",
|
|
1134 ch.slot, ch.pid, ch.fd);
|
0
|
1135
|
378
|
1136 ngx_processes[ch.slot].pid = ch.pid;
|
|
1137 ngx_processes[ch.slot].channel[0] = ch.fd;
|
|
1138 break;
|
0
|
1139
|
378
|
1140 case NGX_CMD_CLOSE_CHANNEL:
|
0
|
1141
|
378
|
1142 ngx_log_debug4(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
1143 "close channel s:%i pid:%P our:%P fd:%d",
|
|
1144 ch.slot, ch.pid, ngx_processes[ch.slot].pid,
|
|
1145 ngx_processes[ch.slot].channel[0]);
|
0
|
1146
|
378
|
1147 if (close(ngx_processes[ch.slot].channel[0]) == -1) {
|
|
1148 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
|
|
1149 "close() channel failed");
|
|
1150 }
|
|
1151
|
|
1152 ngx_processes[ch.slot].channel[0] = -1;
|
|
1153 break;
|
0
|
1154 }
|
|
1155 }
|
|
1156 }
|
|
1157
|
|
1158
|
|
1159 #if (NGX_THREADS)
|
|
1160
|
50
|
1161 static void
|
|
1162 ngx_wakeup_worker_threads(ngx_cycle_t *cycle)
|
0
|
1163 {
|
|
1164 ngx_int_t i;
|
|
1165 ngx_uint_t live;
|
|
1166
|
|
1167 for ( ;; ) {
|
|
1168
|
|
1169 live = 0;
|
|
1170
|
|
1171 for (i = 0; i < ngx_threads_n; i++) {
|
|
1172 if (ngx_threads[i].state < NGX_THREAD_EXIT) {
|
18
|
1173 if (ngx_cond_signal(ngx_threads[i].cv) == NGX_ERROR) {
|
|
1174 ngx_threads[i].state = NGX_THREAD_DONE;
|
0
|
1175
|
|
1176 } else {
|
|
1177 live = 1;
|
|
1178 }
|
|
1179 }
|
|
1180
|
|
1181 if (ngx_threads[i].state == NGX_THREAD_EXIT) {
|
|
1182 ngx_thread_join(ngx_threads[i].tid, NULL);
|
|
1183 ngx_threads[i].state = NGX_THREAD_DONE;
|
|
1184 }
|
|
1185 }
|
|
1186
|
|
1187 if (live == 0) {
|
|
1188 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
1189 "all worker threads are joined");
|
|
1190
|
|
1191 /* STUB */
|
|
1192 ngx_done_events(cycle);
|
|
1193 ngx_mutex_destroy(ngx_event_timer_mutex);
|
|
1194 ngx_mutex_destroy(ngx_posted_events_mutex);
|
|
1195
|
|
1196 return;
|
|
1197 }
|
|
1198
|
|
1199 ngx_sched_yield();
|
|
1200 }
|
|
1201 }
|
|
1202
|
|
1203
|
112
|
1204 static ngx_thread_value_t
|
50
|
1205 ngx_worker_thread_cycle(void *data)
|
0
|
1206 {
|
|
1207 ngx_thread_t *thr = data;
|
|
1208
|
|
1209 sigset_t set;
|
|
1210 ngx_err_t err;
|
|
1211 ngx_core_tls_t *tls;
|
|
1212 ngx_cycle_t *cycle;
|
|
1213
|
|
1214 cycle = (ngx_cycle_t *) ngx_cycle;
|
|
1215
|
|
1216 sigemptyset(&set);
|
|
1217 sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
|
|
1218 sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
|
|
1219 sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
|
|
1220
|
|
1221 err = ngx_thread_sigmask(SIG_BLOCK, &set, NULL);
|
|
1222 if (err) {
|
|
1223 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
1224 ngx_thread_sigmask_n " failed");
|
112
|
1225 return (ngx_thread_value_t) 1;
|
0
|
1226 }
|
|
1227
|
|
1228 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
10
|
1229 "thread " NGX_TID_T_FMT " started", ngx_thread_self());
|
0
|
1230
|
|
1231 ngx_setthrtitle("worker thread");
|
|
1232
|
50
|
1233 tls = ngx_calloc(sizeof(ngx_core_tls_t), cycle->log);
|
|
1234 if (tls == NULL) {
|
112
|
1235 return (ngx_thread_value_t) 1;
|
0
|
1236 }
|
|
1237
|
|
1238 err = ngx_thread_set_tls(ngx_core_tls_key, tls);
|
|
1239 if (err != 0) {
|
|
1240 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
1241 ngx_thread_set_tls_n " failed");
|
112
|
1242 return (ngx_thread_value_t) 1;
|
0
|
1243 }
|
|
1244
|
112
|
1245 ngx_mutex_lock(ngx_posted_events_mutex);
|
0
|
1246
|
|
1247 for ( ;; ) {
|
|
1248 thr->state = NGX_THREAD_FREE;
|
|
1249
|
|
1250 if (ngx_cond_wait(thr->cv, ngx_posted_events_mutex) == NGX_ERROR) {
|
112
|
1251 return (ngx_thread_value_t) 1;
|
0
|
1252 }
|
|
1253
|
|
1254 if (ngx_terminate) {
|
|
1255 thr->state = NGX_THREAD_EXIT;
|
|
1256
|
|
1257 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
1258
|
|
1259 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
10
|
1260 "thread " NGX_TID_T_FMT " is done",
|
|
1261 ngx_thread_self());
|
0
|
1262
|
112
|
1263 return (ngx_thread_value_t) 0;
|
0
|
1264 }
|
|
1265
|
|
1266 thr->state = NGX_THREAD_BUSY;
|
|
1267
|
|
1268 if (ngx_event_thread_process_posted(cycle) == NGX_ERROR) {
|
112
|
1269 return (ngx_thread_value_t) 1;
|
0
|
1270 }
|
|
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_process_changes) {
|
|
1277 if (ngx_process_changes(cycle, 1) == NGX_ERROR) {
|
112
|
1278 return (ngx_thread_value_t) 1;
|
0
|
1279 }
|
|
1280 }
|
|
1281 }
|
|
1282 }
|
|
1283
|
|
1284 #endif
|
16
|
1285
|
|
1286
|
50
|
1287 static void
|
477
|
1288 ngx_cache_manager_process_cycle(ngx_cycle_t *cycle, void *data)
|
16
|
1289 {
|
525
|
1290 ngx_cache_manager_ctx_t *ctx = data;
|
|
1291
|
473
|
1292 void *ident[4];
|
|
1293 ngx_event_t ev;
|
|
1294
|
|
1295 cycle->connection_n = 512;
|
16
|
1296
|
564
|
1297 ngx_process = NGX_PROCESS_HELPER;
|
|
1298
|
22
|
1299 ngx_worker_process_init(cycle, 0);
|
16
|
1300
|
473
|
1301 ngx_close_listening_sockets(cycle);
|
16
|
1302
|
473
|
1303 ngx_memzero(&ev, sizeof(ngx_event_t));
|
525
|
1304 ev.handler = ctx->handler;
|
473
|
1305 ev.data = ident;
|
|
1306 ev.log = cycle->log;
|
|
1307 ident[3] = (void *) -1;
|
16
|
1308
|
473
|
1309 ngx_use_accept_mutex = 0;
|
|
1310
|
525
|
1311 ngx_setproctitle(ctx->name);
|
473
|
1312
|
525
|
1313 ngx_add_timer(&ev, ctx->delay);
|
16
|
1314
|
|
1315 for ( ;; ) {
|
|
1316
|
|
1317 if (ngx_terminate || ngx_quit) {
|
26
|
1318 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
16
|
1319 exit(0);
|
|
1320 }
|
|
1321
|
|
1322 if (ngx_reopen) {
|
|
1323 ngx_reopen = 0;
|
26
|
1324 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
16
|
1325 ngx_reopen_files(cycle, -1);
|
|
1326 }
|
|
1327
|
112
|
1328 ngx_process_events_and_timers(cycle);
|
16
|
1329 }
|
|
1330 }
|
50
|
1331
|
473
|
1332
|
|
1333 static void
|
477
|
1334 ngx_cache_manager_process_handler(ngx_event_t *ev)
|
473
|
1335 {
|
|
1336 time_t next, n;
|
|
1337 ngx_uint_t i;
|
|
1338 ngx_path_t **path;
|
|
1339
|
|
1340 next = 60 * 60;
|
|
1341
|
|
1342 path = ngx_cycle->pathes.elts;
|
|
1343 for (i = 0; i < ngx_cycle->pathes.nelts; i++) {
|
|
1344
|
477
|
1345 if (path[i]->manager) {
|
|
1346 n = path[i]->manager(path[i]->data);
|
473
|
1347
|
|
1348 next = (n <= next) ? n : next;
|
|
1349
|
579
|
1350 ngx_time_update();
|
473
|
1351 }
|
|
1352 }
|
|
1353
|
|
1354 if (next == 0) {
|
|
1355 next = 1;
|
|
1356 }
|
|
1357
|
|
1358 ngx_add_timer(ev, next * 1000);
|
|
1359 }
|
525
|
1360
|
|
1361
|
|
1362 static void
|
|
1363 ngx_cache_loader_process_handler(ngx_event_t *ev)
|
|
1364 {
|
|
1365 ngx_uint_t i;
|
|
1366 ngx_path_t **path;
|
|
1367 ngx_cycle_t *cycle;
|
|
1368
|
|
1369 cycle = (ngx_cycle_t *) ngx_cycle;
|
|
1370
|
|
1371 path = cycle->pathes.elts;
|
|
1372 for (i = 0; i < cycle->pathes.nelts; i++) {
|
|
1373
|
|
1374 if (ngx_terminate || ngx_quit) {
|
|
1375 break;
|
|
1376 }
|
|
1377
|
|
1378 if (path[i]->loader) {
|
|
1379 path[i]->loader(path[i]->data);
|
579
|
1380 ngx_time_update();
|
525
|
1381 }
|
|
1382 }
|
|
1383
|
|
1384 exit(0);
|
|
1385 }
|