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0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10 #include <ngx_channel.h>
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11
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12
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13 static void ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t n,
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50
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14 ngx_int_t type);
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514
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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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468
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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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514
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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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518
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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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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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80
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89 ngx_uint_t n;
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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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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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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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142 live = 1;
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143
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144 for ( ;; ) {
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145 if (delay) {
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518
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146 if (ngx_sigalrm) {
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147 delay *= 2;
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148 ngx_sigalrm = 0;
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149 }
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0
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150
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151 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
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518
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152 "termination cycle: %d", delay);
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0
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153
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154 itv.it_interval.tv_sec = 0;
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155 itv.it_interval.tv_usec = 0;
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156 itv.it_value.tv_sec = delay / 1000;
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157 itv.it_value.tv_usec = (delay % 1000 ) * 1000;
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158
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159 if (setitimer(ITIMER_REAL, &itv, NULL) == -1) {
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160 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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161 "setitimer() failed");
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162 }
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163 }
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164
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165 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "sigsuspend");
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166
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167 sigsuspend(&set);
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168
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112
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169 ngx_time_update(0, 0);
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0
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170
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171 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "wake up");
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172
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173 if (ngx_reap) {
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174 ngx_reap = 0;
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340
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175 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "reap children");
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0
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176
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340
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177 live = ngx_reap_children(cycle);
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0
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178 }
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179
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180 if (!live && (ngx_terminate || ngx_quit)) {
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122
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181 ngx_master_process_exit(cycle);
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0
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182 }
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183
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184 if (ngx_terminate) {
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185 if (delay == 0) {
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186 delay = 50;
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187 }
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188
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189 if (delay > 1000) {
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190 ngx_signal_worker_processes(cycle, SIGKILL);
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191 } else {
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192 ngx_signal_worker_processes(cycle,
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193 ngx_signal_value(NGX_TERMINATE_SIGNAL));
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194 }
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195
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196 continue;
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197 }
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198
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199 if (ngx_quit) {
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200 ngx_signal_worker_processes(cycle,
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201 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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80
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202
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203 ls = cycle->listening.elts;
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204 for (n = 0; n < cycle->listening.nelts; n++) {
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205 if (ngx_close_socket(ls[n].fd) == -1) {
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206 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_socket_errno,
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207 ngx_close_socket_n " %V failed",
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208 &ls[n].addr_text);
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209 }
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210 }
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211 cycle->listening.nelts = 0;
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212
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0
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213 continue;
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214 }
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215
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216 if (ngx_reconfigure) {
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217 ngx_reconfigure = 0;
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218
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219 if (ngx_new_binary) {
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220 ngx_start_worker_processes(cycle, ccf->worker_processes,
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221 NGX_PROCESS_RESPAWN);
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514
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222 ngx_start_cache_manager_processes(cycle, 0);
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0
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223 ngx_noaccepting = 0;
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224
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225 continue;
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226 }
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227
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26
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228 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
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0
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229
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230 cycle = ngx_init_cycle(cycle);
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231 if (cycle == NULL) {
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232 cycle = (ngx_cycle_t *) ngx_cycle;
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233 continue;
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234 }
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235
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236 ngx_cycle = cycle;
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237 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
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238 ngx_core_module);
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239 ngx_start_worker_processes(cycle, ccf->worker_processes,
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240 NGX_PROCESS_JUST_RESPAWN);
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514
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241 ngx_start_cache_manager_processes(cycle, 1);
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0
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242 live = 1;
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243 ngx_signal_worker_processes(cycle,
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244 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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245 }
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246
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247 if (ngx_restart) {
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248 ngx_restart = 0;
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249 ngx_start_worker_processes(cycle, ccf->worker_processes,
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250 NGX_PROCESS_RESPAWN);
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514
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251 ngx_start_cache_manager_processes(cycle, 0);
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0
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252 live = 1;
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253 }
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254
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255 if (ngx_reopen) {
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256 ngx_reopen = 0;
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26
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257 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
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0
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258 ngx_reopen_files(cycle, ccf->user);
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259 ngx_signal_worker_processes(cycle,
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260 ngx_signal_value(NGX_REOPEN_SIGNAL));
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261 }
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262
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263 if (ngx_change_binary) {
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264 ngx_change_binary = 0;
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26
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265 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "changing binary");
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2
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266 ngx_new_binary = ngx_exec_new_binary(cycle, ngx_argv);
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0
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267 }
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268
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269 if (ngx_noaccept) {
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270 ngx_noaccept = 0;
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271 ngx_noaccepting = 1;
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272 ngx_signal_worker_processes(cycle,
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273 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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274 }
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275 }
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276 }
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277
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278
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50
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279 void
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280 ngx_single_process_cycle(ngx_cycle_t *cycle)
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0
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281 {
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282 ngx_uint_t i;
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283
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284 for (i = 0; ngx_modules[i]; i++) {
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285 if (ngx_modules[i]->init_process) {
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286 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
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287 /* fatal */
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288 exit(2);
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289 }
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290 }
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291 }
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292
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293 for ( ;; ) {
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294 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
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295
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112
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296 ngx_process_events_and_timers(cycle);
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0
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297
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298 if (ngx_terminate || ngx_quit) {
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120
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299
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300 for (i = 0; ngx_modules[i]; i++) {
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301 if (ngx_modules[i]->exit_process) {
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302 ngx_modules[i]->exit_process(cycle);
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303 }
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304 }
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305
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122
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306 ngx_master_process_exit(cycle);
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0
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307 }
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308
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309 if (ngx_reconfigure) {
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310 ngx_reconfigure = 0;
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26
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311 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
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0
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312
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313 cycle = ngx_init_cycle(cycle);
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314 if (cycle == NULL) {
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315 cycle = (ngx_cycle_t *) ngx_cycle;
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316 continue;
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317 }
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318
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319 ngx_cycle = cycle;
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320 }
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321
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322 if (ngx_reopen) {
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323 ngx_reopen = 0;
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26
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324 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
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0
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325 ngx_reopen_files(cycle, (ngx_uid_t) -1);
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326 }
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327 }
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328 }
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329
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330
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50
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331 static void
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332 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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333 {
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514
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334 ngx_int_t i;
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106
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335 ngx_channel_t ch;
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0
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336
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26
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337 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start worker processes");
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0
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338
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339 ch.command = NGX_CMD_OPEN_CHANNEL;
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340
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126
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341 for (i = 0; i < n; i++) {
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342
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343 cpu_affinity = ngx_get_cpu_affinity(i);
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344
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0
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345 ngx_spawn_process(cycle, ngx_worker_process_cycle, NULL,
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346 "worker process", type);
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347
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348 ch.pid = ngx_processes[ngx_process_slot].pid;
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349 ch.slot = ngx_process_slot;
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350 ch.fd = ngx_processes[ngx_process_slot].channel[0];
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351
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514
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352 ngx_pass_open_channel(cycle, &ch);
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0
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353 }
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354 }
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355
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356
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50
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357 static void
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514
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358 ngx_start_cache_manager_processes(ngx_cycle_t *cycle, ngx_uint_t respawn)
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16
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359 {
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514
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360 ngx_uint_t i, manager, loader;
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464
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361 ngx_path_t **path;
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362 ngx_channel_t ch;
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16
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363
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514
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364 manager = 0;
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365 loader = 0;
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366
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464
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367 path = ngx_cycle->pathes.elts;
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514
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368 for (i = 0; i < ngx_cycle->pathes.nelts; i++) {
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369
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370 if (path[i]->manager) {
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371 manager = 1;
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372 }
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373
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374 if (path[i]->loader) {
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375 loader = 1;
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464
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376 }
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377 }
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378
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514
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379 if (manager == 0) {
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380 return;
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381 }
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464
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382
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514
|
383 ngx_spawn_process(cycle, ngx_cache_manager_process_cycle,
|
|
|
384 &ngx_cache_manager_ctx, "cache manager process",
|
|
|
385 respawn ? NGX_PROCESS_JUST_RESPAWN : NGX_PROCESS_RESPAWN);
|
|
16
|
386
|
|
|
387 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
|
388 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
|
389 ch.slot = ngx_process_slot;
|
|
|
390 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
|
391
|
|
514
|
392 ngx_pass_open_channel(cycle, &ch);
|
|
|
393
|
|
|
394 if (loader == 0) {
|
|
|
395 return;
|
|
|
396 }
|
|
|
397
|
|
|
398 ngx_spawn_process(cycle, ngx_cache_manager_process_cycle,
|
|
|
399 &ngx_cache_loader_ctx, "cache loader process",
|
|
|
400 respawn ? NGX_PROCESS_JUST_SPAWN : NGX_PROCESS_NORESPAWN);
|
|
|
401
|
|
|
402 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
|
403 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
|
404 ch.slot = ngx_process_slot;
|
|
|
405 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
|
406
|
|
|
407 ngx_pass_open_channel(cycle, &ch);
|
|
|
408 }
|
|
|
409
|
|
|
410
|
|
|
411 static void
|
|
|
412 ngx_pass_open_channel(ngx_cycle_t *cycle, ngx_channel_t *ch)
|
|
|
413 {
|
|
|
414 ngx_int_t i;
|
|
|
415
|
|
16
|
416 for (i = 0; i < ngx_last_process; i++) {
|
|
|
417
|
|
|
418 if (i == ngx_process_slot
|
|
|
419 || ngx_processes[i].pid == -1
|
|
|
420 || ngx_processes[i].channel[0] == -1)
|
|
|
421 {
|
|
|
422 continue;
|
|
|
423 }
|
|
|
424
|
|
|
425 ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
426 "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",
|
|
514
|
427 ch->slot, ch->pid, ch->fd,
|
|
16
|
428 i, ngx_processes[i].pid,
|
|
|
429 ngx_processes[i].channel[0]);
|
|
|
430
|
|
|
431 /* TODO: NGX_AGAIN */
|
|
|
432
|
|
|
433 ngx_write_channel(ngx_processes[i].channel[0],
|
|
514
|
434 ch, sizeof(ngx_channel_t), cycle->log);
|
|
16
|
435 }
|
|
|
436 }
|
|
|
437
|
|
|
438
|
|
50
|
439 static void
|
|
|
440 ngx_signal_worker_processes(ngx_cycle_t *cycle, int signo)
|
|
0
|
441 {
|
|
|
442 ngx_int_t i;
|
|
|
443 ngx_err_t err;
|
|
|
444 ngx_channel_t ch;
|
|
|
445
|
|
342
|
446 #if (NGX_BROKEN_SCM_RIGHTS)
|
|
|
447
|
|
|
448 ch.command = 0;
|
|
|
449
|
|
|
450 #else
|
|
|
451
|
|
0
|
452 switch (signo) {
|
|
|
453
|
|
|
454 case ngx_signal_value(NGX_SHUTDOWN_SIGNAL):
|
|
|
455 ch.command = NGX_CMD_QUIT;
|
|
|
456 break;
|
|
|
457
|
|
|
458 case ngx_signal_value(NGX_TERMINATE_SIGNAL):
|
|
|
459 ch.command = NGX_CMD_TERMINATE;
|
|
|
460 break;
|
|
|
461
|
|
|
462 case ngx_signal_value(NGX_REOPEN_SIGNAL):
|
|
|
463 ch.command = NGX_CMD_REOPEN;
|
|
|
464 break;
|
|
|
465
|
|
|
466 default:
|
|
|
467 ch.command = 0;
|
|
|
468 }
|
|
|
469
|
|
342
|
470 #endif
|
|
|
471
|
|
0
|
472 ch.fd = -1;
|
|
|
473
|
|
|
474
|
|
|
475 for (i = 0; i < ngx_last_process; i++) {
|
|
|
476
|
|
|
477 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
478 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
|
0
|
479 i,
|
|
|
480 ngx_processes[i].pid,
|
|
|
481 ngx_processes[i].exiting,
|
|
|
482 ngx_processes[i].exited,
|
|
|
483 ngx_processes[i].detached,
|
|
|
484 ngx_processes[i].respawn,
|
|
514
|
485 ngx_processes[i].just_spawn);
|
|
0
|
486
|
|
|
487 if (ngx_processes[i].detached || ngx_processes[i].pid == -1) {
|
|
|
488 continue;
|
|
|
489 }
|
|
|
490
|
|
514
|
491 if (ngx_processes[i].just_spawn) {
|
|
|
492 ngx_processes[i].just_spawn = 0;
|
|
0
|
493 continue;
|
|
|
494 }
|
|
|
495
|
|
|
496 if (ngx_processes[i].exiting
|
|
|
497 && signo == ngx_signal_value(NGX_SHUTDOWN_SIGNAL))
|
|
|
498 {
|
|
|
499 continue;
|
|
|
500 }
|
|
|
501
|
|
|
502 if (ch.command) {
|
|
|
503 if (ngx_write_channel(ngx_processes[i].channel[0],
|
|
290
|
504 &ch, sizeof(ngx_channel_t), cycle->log)
|
|
|
505 == NGX_OK)
|
|
0
|
506 {
|
|
|
507 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
|
508 ngx_processes[i].exiting = 1;
|
|
|
509 }
|
|
|
510
|
|
|
511 continue;
|
|
|
512 }
|
|
|
513 }
|
|
|
514
|
|
|
515 ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
516 "kill (%P, %d)" , ngx_processes[i].pid, signo);
|
|
0
|
517
|
|
|
518 if (kill(ngx_processes[i].pid, signo) == -1) {
|
|
|
519 err = ngx_errno;
|
|
|
520 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
518
|
521 "kill(%P, %d) failed", ngx_processes[i].pid, signo);
|
|
0
|
522
|
|
|
523 if (err == NGX_ESRCH) {
|
|
|
524 ngx_processes[i].exited = 1;
|
|
|
525 ngx_processes[i].exiting = 0;
|
|
|
526 ngx_reap = 1;
|
|
|
527 }
|
|
|
528
|
|
|
529 continue;
|
|
|
530 }
|
|
|
531
|
|
|
532 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
|
533 ngx_processes[i].exiting = 1;
|
|
|
534 }
|
|
|
535 }
|
|
|
536 }
|
|
|
537
|
|
|
538
|
|
50
|
539 static ngx_uint_t
|
|
340
|
540 ngx_reap_children(ngx_cycle_t *cycle)
|
|
0
|
541 {
|
|
92
|
542 ngx_int_t i, n;
|
|
|
543 ngx_uint_t live;
|
|
|
544 ngx_channel_t ch;
|
|
|
545 ngx_core_conf_t *ccf;
|
|
0
|
546
|
|
|
547 ch.command = NGX_CMD_CLOSE_CHANNEL;
|
|
|
548 ch.fd = -1;
|
|
|
549
|
|
|
550 live = 0;
|
|
|
551 for (i = 0; i < ngx_last_process; i++) {
|
|
|
552
|
|
|
553 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
554 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
|
0
|
555 i,
|
|
|
556 ngx_processes[i].pid,
|
|
|
557 ngx_processes[i].exiting,
|
|
|
558 ngx_processes[i].exited,
|
|
|
559 ngx_processes[i].detached,
|
|
|
560 ngx_processes[i].respawn,
|
|
514
|
561 ngx_processes[i].just_spawn);
|
|
0
|
562
|
|
|
563 if (ngx_processes[i].pid == -1) {
|
|
|
564 continue;
|
|
|
565 }
|
|
|
566
|
|
|
567 if (ngx_processes[i].exited) {
|
|
|
568
|
|
|
569 if (!ngx_processes[i].detached) {
|
|
|
570 ngx_close_channel(ngx_processes[i].channel, cycle->log);
|
|
|
571
|
|
|
572 ngx_processes[i].channel[0] = -1;
|
|
|
573 ngx_processes[i].channel[1] = -1;
|
|
|
574
|
|
|
575 ch.pid = ngx_processes[i].pid;
|
|
|
576 ch.slot = i;
|
|
|
577
|
|
|
578 for (n = 0; n < ngx_last_process; n++) {
|
|
|
579 if (ngx_processes[n].exited
|
|
|
580 || ngx_processes[n].pid == -1
|
|
|
581 || ngx_processes[n].channel[0] == -1)
|
|
|
582 {
|
|
|
583 continue;
|
|
|
584 }
|
|
|
585
|
|
|
586 ngx_log_debug3(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
587 "pass close channel s:%i pid:%P to:%P",
|
|
|
588 ch.slot, ch.pid, ngx_processes[n].pid);
|
|
0
|
589
|
|
|
590 /* TODO: NGX_AGAIN */
|
|
|
591
|
|
|
592 ngx_write_channel(ngx_processes[n].channel[0],
|
|
|
593 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
|
594 }
|
|
|
595 }
|
|
|
596
|
|
|
597 if (ngx_processes[i].respawn
|
|
|
598 && !ngx_processes[i].exiting
|
|
|
599 && !ngx_terminate
|
|
|
600 && !ngx_quit)
|
|
|
601 {
|
|
|
602 if (ngx_spawn_process(cycle, ngx_processes[i].proc,
|
|
|
603 ngx_processes[i].data,
|
|
|
604 ngx_processes[i].name, i)
|
|
92
|
605 == NGX_INVALID_PID)
|
|
0
|
606 {
|
|
|
607 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
608 "can not respawn %s", ngx_processes[i].name);
|
|
|
609 continue;
|
|
|
610 }
|
|
|
611
|
|
22
|
612
|
|
|
613 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
|
614 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
|
615 ch.slot = ngx_process_slot;
|
|
|
616 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
|
617
|
|
514
|
618 ngx_pass_open_channel(cycle, &ch);
|
|
22
|
619
|
|
0
|
620 live = 1;
|
|
|
621
|
|
|
622 continue;
|
|
|
623 }
|
|
|
624
|
|
|
625 if (ngx_processes[i].pid == ngx_new_binary) {
|
|
92
|
626
|
|
|
627 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
|
|
|
628 ngx_core_module);
|
|
|
629
|
|
|
630 if (ngx_rename_file((char *) ccf->oldpid.data,
|
|
|
631 (char *) ccf->pid.data)
|
|
|
632 != NGX_OK)
|
|
|
633 {
|
|
|
634 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
635 ngx_rename_file_n " %s back to %s failed "
|
|
|
636 "after the new binary process \"%s\" exited",
|
|
|
637 ccf->oldpid.data, ccf->pid.data, ngx_argv[0]);
|
|
|
638 }
|
|
|
639
|
|
0
|
640 ngx_new_binary = 0;
|
|
|
641 if (ngx_noaccepting) {
|
|
|
642 ngx_restart = 1;
|
|
|
643 ngx_noaccepting = 0;
|
|
|
644 }
|
|
|
645 }
|
|
|
646
|
|
|
647 if (i == ngx_last_process - 1) {
|
|
|
648 ngx_last_process--;
|
|
|
649
|
|
|
650 } else {
|
|
|
651 ngx_processes[i].pid = -1;
|
|
|
652 }
|
|
|
653
|
|
|
654 } else if (ngx_processes[i].exiting || !ngx_processes[i].detached) {
|
|
|
655 live = 1;
|
|
|
656 }
|
|
|
657 }
|
|
|
658
|
|
|
659 return live;
|
|
|
660 }
|
|
|
661
|
|
|
662
|
|
50
|
663 static void
|
|
122
|
664 ngx_master_process_exit(ngx_cycle_t *cycle)
|
|
0
|
665 {
|
|
120
|
666 ngx_uint_t i;
|
|
|
667
|
|
0
|
668 ngx_delete_pidfile(cycle);
|
|
|
669
|
|
26
|
670 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit");
|
|
0
|
671
|
|
120
|
672 for (i = 0; ngx_modules[i]; i++) {
|
|
|
673 if (ngx_modules[i]->exit_master) {
|
|
|
674 ngx_modules[i]->exit_master(cycle);
|
|
|
675 }
|
|
|
676 }
|
|
|
677
|
|
54
|
678 /*
|
|
332
|
679 * Copy ngx_cycle->log related data to the special static exit cycle,
|
|
|
680 * log, and log file structures enough to allow a signal handler to log.
|
|
|
681 * The handler may be called when standard ngx_cycle->log allocated from
|
|
|
682 * ngx_cycle->pool is already destroyed.
|
|
54
|
683 */
|
|
|
684
|
|
332
|
685 ngx_exit_log_file.fd = ngx_cycle->log->file->fd;
|
|
|
686
|
|
|
687 ngx_exit_log = *ngx_cycle->log;
|
|
|
688 ngx_exit_log.file = &ngx_exit_log_file;
|
|
|
689
|
|
|
690 ngx_exit_cycle.log = &ngx_exit_log;
|
|
|
691 ngx_cycle = &ngx_exit_cycle;
|
|
|
692
|
|
0
|
693 ngx_destroy_pool(cycle->pool);
|
|
|
694
|
|
|
695 exit(0);
|
|
|
696 }
|
|
|
697
|
|
|
698
|
|
50
|
699 static void
|
|
|
700 ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data)
|
|
0
|
701 {
|
|
290
|
702 ngx_uint_t i;
|
|
|
703 ngx_connection_t *c;
|
|
18
|
704
|
|
22
|
705 ngx_worker_process_init(cycle, 1);
|
|
0
|
706
|
|
|
707 ngx_setproctitle("worker process");
|
|
|
708
|
|
|
709 #if (NGX_THREADS)
|
|
356
|
710 {
|
|
|
711 ngx_int_t n;
|
|
|
712 ngx_err_t err;
|
|
|
713 ngx_core_conf_t *ccf;
|
|
0
|
714
|
|
18
|
715 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
716
|
|
0
|
717 if (ngx_threads_n) {
|
|
290
|
718 if (ngx_init_threads(ngx_threads_n, ccf->thread_stack_size, cycle)
|
|
|
719 == NGX_ERROR)
|
|
0
|
720 {
|
|
|
721 /* fatal */
|
|
|
722 exit(2);
|
|
|
723 }
|
|
|
724
|
|
|
725 err = ngx_thread_key_create(&ngx_core_tls_key);
|
|
|
726 if (err != 0) {
|
|
|
727 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
728 ngx_thread_key_create_n " failed");
|
|
|
729 /* fatal */
|
|
|
730 exit(2);
|
|
|
731 }
|
|
|
732
|
|
|
733 for (n = 0; n < ngx_threads_n; n++) {
|
|
|
734
|
|
50
|
735 ngx_threads[n].cv = ngx_cond_init(cycle->log);
|
|
|
736
|
|
|
737 if (ngx_threads[n].cv == NULL) {
|
|
0
|
738 /* fatal */
|
|
|
739 exit(2);
|
|
|
740 }
|
|
|
741
|
|
|
742 if (ngx_create_thread((ngx_tid_t *) &ngx_threads[n].tid,
|
|
|
743 ngx_worker_thread_cycle,
|
|
290
|
744 (void *) &ngx_threads[n], cycle->log)
|
|
|
745 != 0)
|
|
0
|
746 {
|
|
|
747 /* fatal */
|
|
|
748 exit(2);
|
|
|
749 }
|
|
|
750 }
|
|
|
751 }
|
|
356
|
752 }
|
|
0
|
753 #endif
|
|
|
754
|
|
|
755 for ( ;; ) {
|
|
290
|
756
|
|
|
757 if (ngx_exiting) {
|
|
|
758
|
|
|
759 c = cycle->connections;
|
|
|
760
|
|
|
761 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
762
|
|
|
763 /* THREAD: lock */
|
|
0
|
764
|
|
290
|
765 if (c[i].fd != -1 && c[i].idle) {
|
|
|
766 c[i].close = 1;
|
|
|
767 c[i].read->handler(c[i].read);
|
|
|
768 }
|
|
|
769 }
|
|
|
770
|
|
|
771 if (ngx_event_timer_rbtree.root == ngx_event_timer_rbtree.sentinel)
|
|
|
772 {
|
|
|
773 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
|
774
|
|
|
775 ngx_worker_process_exit(cycle);
|
|
|
776 }
|
|
0
|
777 }
|
|
|
778
|
|
|
779 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
|
|
|
780
|
|
112
|
781 ngx_process_events_and_timers(cycle);
|
|
0
|
782
|
|
|
783 if (ngx_terminate) {
|
|
26
|
784 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
0
|
785
|
|
122
|
786 ngx_worker_process_exit(cycle);
|
|
0
|
787 }
|
|
|
788
|
|
|
789 if (ngx_quit) {
|
|
|
790 ngx_quit = 0;
|
|
26
|
791 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
0
|
792 "gracefully shutting down");
|
|
|
793 ngx_setproctitle("worker process is shutting down");
|
|
|
794
|
|
|
795 if (!ngx_exiting) {
|
|
|
796 ngx_close_listening_sockets(cycle);
|
|
|
797 ngx_exiting = 1;
|
|
|
798 }
|
|
|
799 }
|
|
|
800
|
|
|
801 if (ngx_reopen) {
|
|
|
802 ngx_reopen = 0;
|
|
26
|
803 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
|
0
|
804 ngx_reopen_files(cycle, -1);
|
|
|
805 }
|
|
|
806 }
|
|
|
807 }
|
|
|
808
|
|
|
809
|
|
50
|
810 static void
|
|
|
811 ngx_worker_process_init(ngx_cycle_t *cycle, ngx_uint_t priority)
|
|
16
|
812 {
|
|
278
|
813 sigset_t set;
|
|
|
814 ngx_int_t n;
|
|
|
815 ngx_uint_t i;
|
|
|
816 struct rlimit rlmt;
|
|
|
817 ngx_core_conf_t *ccf;
|
|
|
818 ngx_listening_t *ls;
|
|
16
|
819
|
|
|
820 ngx_process = NGX_PROCESS_WORKER;
|
|
|
821
|
|
278
|
822 if (ngx_set_environment(cycle, NULL) == NULL) {
|
|
|
823 /* fatal */
|
|
|
824 exit(2);
|
|
|
825 }
|
|
|
826
|
|
16
|
827 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
828
|
|
328
|
829 if (priority && ccf->priority != 0) {
|
|
|
830 if (setpriority(PRIO_PROCESS, 0, ccf->priority) == -1) {
|
|
|
831 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
832 "setpriority(%d) failed", ccf->priority);
|
|
22
|
833 }
|
|
328
|
834 }
|
|
22
|
835
|
|
328
|
836 if (ccf->rlimit_nofile != NGX_CONF_UNSET) {
|
|
|
837 rlmt.rlim_cur = (rlim_t) ccf->rlimit_nofile;
|
|
|
838 rlmt.rlim_max = (rlim_t) ccf->rlimit_nofile;
|
|
92
|
839
|
|
328
|
840 if (setrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
|
|
|
841 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
842 "setrlimit(RLIMIT_NOFILE, %i) failed",
|
|
|
843 ccf->rlimit_nofile);
|
|
92
|
844 }
|
|
328
|
845 }
|
|
92
|
846
|
|
328
|
847 if (ccf->rlimit_core != NGX_CONF_UNSET_SIZE) {
|
|
|
848 rlmt.rlim_cur = (rlim_t) ccf->rlimit_core;
|
|
|
849 rlmt.rlim_max = (rlim_t) ccf->rlimit_core;
|
|
138
|
850
|
|
328
|
851 if (setrlimit(RLIMIT_CORE, &rlmt) == -1) {
|
|
|
852 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
853 "setrlimit(RLIMIT_CORE, %i) failed",
|
|
|
854 ccf->rlimit_core);
|
|
138
|
855 }
|
|
328
|
856 }
|
|
138
|
857
|
|
92
|
858 #ifdef RLIMIT_SIGPENDING
|
|
328
|
859 if (ccf->rlimit_sigpending != NGX_CONF_UNSET) {
|
|
|
860 rlmt.rlim_cur = (rlim_t) ccf->rlimit_sigpending;
|
|
|
861 rlmt.rlim_max = (rlim_t) ccf->rlimit_sigpending;
|
|
92
|
862
|
|
328
|
863 if (setrlimit(RLIMIT_SIGPENDING, &rlmt) == -1) {
|
|
|
864 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
865 "setrlimit(RLIMIT_SIGPENDING, %i) failed",
|
|
|
866 ccf->rlimit_sigpending);
|
|
92
|
867 }
|
|
328
|
868 }
|
|
92
|
869 #endif
|
|
|
870
|
|
328
|
871 if (geteuid() == 0) {
|
|
16
|
872 if (setgid(ccf->group) == -1) {
|
|
|
873 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
874 "setgid(%d) failed", ccf->group);
|
|
|
875 /* fatal */
|
|
|
876 exit(2);
|
|
|
877 }
|
|
|
878
|
|
22
|
879 if (initgroups(ccf->username, ccf->group) == -1) {
|
|
|
880 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
881 "initgroups(%s, %d) failed",
|
|
|
882 ccf->username, ccf->group);
|
|
|
883 }
|
|
|
884
|
|
16
|
885 if (setuid(ccf->user) == -1) {
|
|
|
886 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
887 "setuid(%d) failed", ccf->user);
|
|
|
888 /* fatal */
|
|
|
889 exit(2);
|
|
|
890 }
|
|
|
891 }
|
|
|
892
|
|
126
|
893 #if (NGX_HAVE_SCHED_SETAFFINITY)
|
|
|
894
|
|
|
895 if (cpu_affinity) {
|
|
|
896 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
|
897 "sched_setaffinity(0x%08Xl)", cpu_affinity);
|
|
|
898
|
|
|
899 if (sched_setaffinity(0, 32, (cpu_set_t *) &cpu_affinity) == -1) {
|
|
|
900 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
901 "sched_setaffinity(0x%08Xl) failed", cpu_affinity);
|
|
|
902 }
|
|
|
903 }
|
|
|
904
|
|
|
905 #endif
|
|
|
906
|
|
16
|
907 #if (NGX_HAVE_PR_SET_DUMPABLE)
|
|
|
908
|
|
|
909 /* allow coredump after setuid() in Linux 2.4.x */
|
|
|
910
|
|
|
911 if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1) {
|
|
|
912 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
913 "prctl(PR_SET_DUMPABLE) failed");
|
|
|
914 }
|
|
|
915
|
|
|
916 #endif
|
|
|
917
|
|
70
|
918 if (ccf->working_directory.len) {
|
|
72
|
919 if (chdir((char *) ccf->working_directory.data) == -1) {
|
|
70
|
920 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
921 "chdir(\"%s\") failed", ccf->working_directory.data);
|
|
|
922 /* fatal */
|
|
|
923 exit(2);
|
|
|
924 }
|
|
|
925 }
|
|
|
926
|
|
16
|
927 sigemptyset(&set);
|
|
|
928
|
|
|
929 if (sigprocmask(SIG_SETMASK, &set, NULL) == -1) {
|
|
|
930 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
931 "sigprocmask() failed");
|
|
|
932 }
|
|
|
933
|
|
|
934 /*
|
|
|
935 * disable deleting previous events for the listening sockets because
|
|
|
936 * in the worker processes there are no events at all at this point
|
|
126
|
937 */
|
|
16
|
938 ls = cycle->listening.elts;
|
|
|
939 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
92
|
940 ls[i].previous = NULL;
|
|
16
|
941 }
|
|
|
942
|
|
|
943 for (i = 0; ngx_modules[i]; i++) {
|
|
|
944 if (ngx_modules[i]->init_process) {
|
|
|
945 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
|
|
|
946 /* fatal */
|
|
|
947 exit(2);
|
|
|
948 }
|
|
|
949 }
|
|
|
950 }
|
|
|
951
|
|
|
952 for (n = 0; n < ngx_last_process; n++) {
|
|
|
953
|
|
|
954 if (ngx_processes[n].pid == -1) {
|
|
|
955 continue;
|
|
|
956 }
|
|
|
957
|
|
|
958 if (n == ngx_process_slot) {
|
|
|
959 continue;
|
|
|
960 }
|
|
|
961
|
|
|
962 if (ngx_processes[n].channel[1] == -1) {
|
|
|
963 continue;
|
|
|
964 }
|
|
|
965
|
|
|
966 if (close(ngx_processes[n].channel[1]) == -1) {
|
|
|
967 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
968 "close() channel failed");
|
|
|
969 }
|
|
|
970 }
|
|
|
971
|
|
|
972 if (close(ngx_processes[ngx_process_slot].channel[0]) == -1) {
|
|
|
973 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
974 "close() channel failed");
|
|
|
975 }
|
|
|
976
|
|
|
977 #if 0
|
|
|
978 ngx_last_process = 0;
|
|
|
979 #endif
|
|
|
980
|
|
|
981 if (ngx_add_channel_event(cycle, ngx_channel, NGX_READ_EVENT,
|
|
290
|
982 ngx_channel_handler)
|
|
|
983 == NGX_ERROR)
|
|
16
|
984 {
|
|
|
985 /* fatal */
|
|
|
986 exit(2);
|
|
|
987 }
|
|
|
988 }
|
|
|
989
|
|
|
990
|
|
50
|
991 static void
|
|
122
|
992 ngx_worker_process_exit(ngx_cycle_t *cycle)
|
|
|
993 {
|
|
|
994 ngx_uint_t i;
|
|
|
995 ngx_connection_t *c;
|
|
|
996
|
|
|
997 #if (NGX_THREADS)
|
|
|
998 ngx_terminate = 1;
|
|
|
999
|
|
|
1000 ngx_wakeup_worker_threads(cycle);
|
|
|
1001 #endif
|
|
|
1002
|
|
|
1003 for (i = 0; ngx_modules[i]; i++) {
|
|
|
1004 if (ngx_modules[i]->exit_process) {
|
|
|
1005 ngx_modules[i]->exit_process(cycle);
|
|
|
1006 }
|
|
|
1007 }
|
|
|
1008
|
|
366
|
1009 if (ngx_exiting) {
|
|
136
|
1010 c = cycle->connections;
|
|
|
1011 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
1012 if (c[i].fd != -1
|
|
|
1013 && c[i].read
|
|
|
1014 && !c[i].read->accept
|
|
366
|
1015 && !c[i].read->channel
|
|
|
1016 && !c[i].read->resolver)
|
|
136
|
1017 {
|
|
|
1018 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
514
|
1019 "open socket #%d left in connection %ui",
|
|
|
1020 c[i].fd, i);
|
|
|
1021 ngx_debug_quit = 1;
|
|
136
|
1022 }
|
|
122
|
1023 }
|
|
|
1024
|
|
136
|
1025 if (ngx_debug_quit) {
|
|
514
|
1026 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, "aborting");
|
|
136
|
1027 ngx_debug_point();
|
|
|
1028 }
|
|
122
|
1029 }
|
|
|
1030
|
|
|
1031 /*
|
|
332
|
1032 * Copy ngx_cycle->log related data to the special static exit cycle,
|
|
|
1033 * log, and log file structures enough to allow a signal handler to log.
|
|
|
1034 * The handler may be called when standard ngx_cycle->log allocated from
|
|
|
1035 * ngx_cycle->pool is already destroyed.
|
|
122
|
1036 */
|
|
|
1037
|
|
332
|
1038 ngx_exit_log_file.fd = ngx_cycle->log->file->fd;
|
|
|
1039
|
|
|
1040 ngx_exit_log = *ngx_cycle->log;
|
|
|
1041 ngx_exit_log.file = &ngx_exit_log_file;
|
|
|
1042
|
|
|
1043 ngx_exit_cycle.log = &ngx_exit_log;
|
|
|
1044 ngx_cycle = &ngx_exit_cycle;
|
|
|
1045
|
|
122
|
1046 ngx_destroy_pool(cycle->pool);
|
|
332
|
1047
|
|
|
1048 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, "exit");
|
|
122
|
1049
|
|
|
1050 exit(0);
|
|
|
1051 }
|
|
|
1052
|
|
|
1053
|
|
|
1054 static void
|
|
50
|
1055 ngx_channel_handler(ngx_event_t *ev)
|
|
0
|
1056 {
|
|
|
1057 ngx_int_t n;
|
|
|
1058 ngx_channel_t ch;
|
|
|
1059 ngx_connection_t *c;
|
|
|
1060
|
|
16
|
1061 if (ev->timedout) {
|
|
|
1062 ev->timedout = 0;
|
|
|
1063 return;
|
|
|
1064 }
|
|
|
1065
|
|
0
|
1066 c = ev->data;
|
|
|
1067
|
|
|
1068 ngx_log_debug0(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel handler");
|
|
|
1069
|
|
378
|
1070 for ( ;; ) {
|
|
0
|
1071
|
|
378
|
1072 n = ngx_read_channel(c->fd, &ch, sizeof(ngx_channel_t), ev->log);
|
|
|
1073
|
|
|
1074 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel: %i", n);
|
|
0
|
1075
|
|
378
|
1076 if (n == NGX_ERROR) {
|
|
366
|
1077
|
|
378
|
1078 if (ngx_event_flags & NGX_USE_EPOLL_EVENT) {
|
|
|
1079 ngx_del_conn(c, 0);
|
|
|
1080 }
|
|
|
1081
|
|
|
1082 ngx_close_connection(c);
|
|
|
1083 return;
|
|
366
|
1084 }
|
|
|
1085
|
|
378
|
1086 if (ngx_event_flags & NGX_USE_EVENTPORT_EVENT) {
|
|
|
1087 if (ngx_add_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
1088 return;
|
|
|
1089 }
|
|
|
1090 }
|
|
10
|
1091
|
|
378
|
1092 if (n == NGX_AGAIN) {
|
|
290
|
1093 return;
|
|
|
1094 }
|
|
378
|
1095
|
|
|
1096 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1097 "channel command: %d", ch.command);
|
|
290
|
1098
|
|
378
|
1099 switch (ch.command) {
|
|
0
|
1100
|
|
378
|
1101 case NGX_CMD_QUIT:
|
|
|
1102 ngx_quit = 1;
|
|
|
1103 break;
|
|
0
|
1104
|
|
378
|
1105 case NGX_CMD_TERMINATE:
|
|
|
1106 ngx_terminate = 1;
|
|
|
1107 break;
|
|
0
|
1108
|
|
378
|
1109 case NGX_CMD_REOPEN:
|
|
|
1110 ngx_reopen = 1;
|
|
|
1111 break;
|
|
0
|
1112
|
|
378
|
1113 case NGX_CMD_OPEN_CHANNEL:
|
|
0
|
1114
|
|
378
|
1115 ngx_log_debug3(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1116 "get channel s:%i pid:%P fd:%d",
|
|
|
1117 ch.slot, ch.pid, ch.fd);
|
|
0
|
1118
|
|
378
|
1119 ngx_processes[ch.slot].pid = ch.pid;
|
|
|
1120 ngx_processes[ch.slot].channel[0] = ch.fd;
|
|
|
1121 break;
|
|
0
|
1122
|
|
378
|
1123 case NGX_CMD_CLOSE_CHANNEL:
|
|
0
|
1124
|
|
378
|
1125 ngx_log_debug4(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1126 "close channel s:%i pid:%P our:%P fd:%d",
|
|
|
1127 ch.slot, ch.pid, ngx_processes[ch.slot].pid,
|
|
|
1128 ngx_processes[ch.slot].channel[0]);
|
|
0
|
1129
|
|
378
|
1130 if (close(ngx_processes[ch.slot].channel[0]) == -1) {
|
|
|
1131 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
|
|
|
1132 "close() channel failed");
|
|
|
1133 }
|
|
|
1134
|
|
|
1135 ngx_processes[ch.slot].channel[0] = -1;
|
|
|
1136 break;
|
|
0
|
1137 }
|
|
|
1138 }
|
|
|
1139 }
|
|
|
1140
|
|
|
1141
|
|
|
1142 #if (NGX_THREADS)
|
|
|
1143
|
|
50
|
1144 static void
|
|
|
1145 ngx_wakeup_worker_threads(ngx_cycle_t *cycle)
|
|
0
|
1146 {
|
|
|
1147 ngx_int_t i;
|
|
|
1148 ngx_uint_t live;
|
|
|
1149
|
|
|
1150 for ( ;; ) {
|
|
|
1151
|
|
|
1152 live = 0;
|
|
|
1153
|
|
|
1154 for (i = 0; i < ngx_threads_n; i++) {
|
|
|
1155 if (ngx_threads[i].state < NGX_THREAD_EXIT) {
|
|
18
|
1156 if (ngx_cond_signal(ngx_threads[i].cv) == NGX_ERROR) {
|
|
|
1157 ngx_threads[i].state = NGX_THREAD_DONE;
|
|
0
|
1158
|
|
|
1159 } else {
|
|
|
1160 live = 1;
|
|
|
1161 }
|
|
|
1162 }
|
|
|
1163
|
|
|
1164 if (ngx_threads[i].state == NGX_THREAD_EXIT) {
|
|
|
1165 ngx_thread_join(ngx_threads[i].tid, NULL);
|
|
|
1166 ngx_threads[i].state = NGX_THREAD_DONE;
|
|
|
1167 }
|
|
|
1168 }
|
|
|
1169
|
|
|
1170 if (live == 0) {
|
|
|
1171 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
1172 "all worker threads are joined");
|
|
|
1173
|
|
|
1174 /* STUB */
|
|
|
1175 ngx_done_events(cycle);
|
|
|
1176 ngx_mutex_destroy(ngx_event_timer_mutex);
|
|
|
1177 ngx_mutex_destroy(ngx_posted_events_mutex);
|
|
|
1178
|
|
|
1179 return;
|
|
|
1180 }
|
|
|
1181
|
|
|
1182 ngx_sched_yield();
|
|
|
1183 }
|
|
|
1184 }
|
|
|
1185
|
|
|
1186
|
|
112
|
1187 static ngx_thread_value_t
|
|
50
|
1188 ngx_worker_thread_cycle(void *data)
|
|
0
|
1189 {
|
|
|
1190 ngx_thread_t *thr = data;
|
|
|
1191
|
|
|
1192 sigset_t set;
|
|
|
1193 ngx_err_t err;
|
|
|
1194 ngx_core_tls_t *tls;
|
|
|
1195 ngx_cycle_t *cycle;
|
|
|
1196
|
|
|
1197 cycle = (ngx_cycle_t *) ngx_cycle;
|
|
|
1198
|
|
|
1199 sigemptyset(&set);
|
|
|
1200 sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
|
|
|
1201 sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
|
|
|
1202 sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
|
|
|
1203
|
|
|
1204 err = ngx_thread_sigmask(SIG_BLOCK, &set, NULL);
|
|
|
1205 if (err) {
|
|
|
1206 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
1207 ngx_thread_sigmask_n " failed");
|
|
112
|
1208 return (ngx_thread_value_t) 1;
|
|
0
|
1209 }
|
|
|
1210
|
|
|
1211 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
1212 "thread " NGX_TID_T_FMT " started", ngx_thread_self());
|
|
0
|
1213
|
|
|
1214 ngx_setthrtitle("worker thread");
|
|
|
1215
|
|
50
|
1216 tls = ngx_calloc(sizeof(ngx_core_tls_t), cycle->log);
|
|
|
1217 if (tls == NULL) {
|
|
112
|
1218 return (ngx_thread_value_t) 1;
|
|
0
|
1219 }
|
|
|
1220
|
|
|
1221 err = ngx_thread_set_tls(ngx_core_tls_key, tls);
|
|
|
1222 if (err != 0) {
|
|
|
1223 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
1224 ngx_thread_set_tls_n " failed");
|
|
112
|
1225 return (ngx_thread_value_t) 1;
|
|
0
|
1226 }
|
|
|
1227
|
|
112
|
1228 ngx_mutex_lock(ngx_posted_events_mutex);
|
|
0
|
1229
|
|
|
1230 for ( ;; ) {
|
|
|
1231 thr->state = NGX_THREAD_FREE;
|
|
|
1232
|
|
|
1233 if (ngx_cond_wait(thr->cv, ngx_posted_events_mutex) == NGX_ERROR) {
|
|
112
|
1234 return (ngx_thread_value_t) 1;
|
|
0
|
1235 }
|
|
|
1236
|
|
|
1237 if (ngx_terminate) {
|
|
|
1238 thr->state = NGX_THREAD_EXIT;
|
|
|
1239
|
|
|
1240 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
|
1241
|
|
|
1242 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
1243 "thread " NGX_TID_T_FMT " is done",
|
|
|
1244 ngx_thread_self());
|
|
0
|
1245
|
|
112
|
1246 return (ngx_thread_value_t) 0;
|
|
0
|
1247 }
|
|
|
1248
|
|
|
1249 thr->state = NGX_THREAD_BUSY;
|
|
|
1250
|
|
|
1251 if (ngx_event_thread_process_posted(cycle) == NGX_ERROR) {
|
|
112
|
1252 return (ngx_thread_value_t) 1;
|
|
0
|
1253 }
|
|
|
1254
|
|
|
1255 if (ngx_event_thread_process_posted(cycle) == NGX_ERROR) {
|
|
112
|
1256 return (ngx_thread_value_t) 1;
|
|
0
|
1257 }
|
|
|
1258
|
|
|
1259 if (ngx_process_changes) {
|
|
|
1260 if (ngx_process_changes(cycle, 1) == NGX_ERROR) {
|
|
112
|
1261 return (ngx_thread_value_t) 1;
|
|
0
|
1262 }
|
|
|
1263 }
|
|
|
1264 }
|
|
|
1265 }
|
|
|
1266
|
|
|
1267 #endif
|
|
16
|
1268
|
|
|
1269
|
|
50
|
1270 static void
|
|
468
|
1271 ngx_cache_manager_process_cycle(ngx_cycle_t *cycle, void *data)
|
|
16
|
1272 {
|
|
514
|
1273 ngx_cache_manager_ctx_t *ctx = data;
|
|
|
1274
|
|
464
|
1275 void *ident[4];
|
|
|
1276 ngx_event_t ev;
|
|
|
1277
|
|
|
1278 cycle->connection_n = 512;
|
|
16
|
1279
|
|
22
|
1280 ngx_worker_process_init(cycle, 0);
|
|
16
|
1281
|
|
464
|
1282 ngx_close_listening_sockets(cycle);
|
|
16
|
1283
|
|
464
|
1284 ngx_memzero(&ev, sizeof(ngx_event_t));
|
|
514
|
1285 ev.handler = ctx->handler;
|
|
464
|
1286 ev.data = ident;
|
|
|
1287 ev.log = cycle->log;
|
|
|
1288 ident[3] = (void *) -1;
|
|
16
|
1289
|
|
464
|
1290 ngx_use_accept_mutex = 0;
|
|
|
1291
|
|
514
|
1292 ngx_setproctitle(ctx->name);
|
|
464
|
1293
|
|
514
|
1294 ngx_add_timer(&ev, ctx->delay);
|
|
16
|
1295
|
|
|
1296 for ( ;; ) {
|
|
|
1297
|
|
|
1298 if (ngx_terminate || ngx_quit) {
|
|
26
|
1299 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
16
|
1300 exit(0);
|
|
|
1301 }
|
|
|
1302
|
|
|
1303 if (ngx_reopen) {
|
|
|
1304 ngx_reopen = 0;
|
|
26
|
1305 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
|
16
|
1306 ngx_reopen_files(cycle, -1);
|
|
|
1307 }
|
|
|
1308
|
|
112
|
1309 ngx_process_events_and_timers(cycle);
|
|
16
|
1310 }
|
|
|
1311 }
|
|
50
|
1312
|
|
464
|
1313
|
|
|
1314 static void
|
|
468
|
1315 ngx_cache_manager_process_handler(ngx_event_t *ev)
|
|
464
|
1316 {
|
|
|
1317 time_t next, n;
|
|
|
1318 ngx_uint_t i;
|
|
|
1319 ngx_path_t **path;
|
|
|
1320
|
|
|
1321 next = 60 * 60;
|
|
|
1322
|
|
|
1323 path = ngx_cycle->pathes.elts;
|
|
|
1324 for (i = 0; i < ngx_cycle->pathes.nelts; i++) {
|
|
|
1325
|
|
468
|
1326 if (path[i]->manager) {
|
|
|
1327 n = path[i]->manager(path[i]->data);
|
|
464
|
1328
|
|
|
1329 next = (n <= next) ? n : next;
|
|
|
1330
|
|
|
1331 ngx_time_update(0, 0);
|
|
|
1332 }
|
|
|
1333 }
|
|
|
1334
|
|
|
1335 if (next == 0) {
|
|
|
1336 next = 1;
|
|
|
1337 }
|
|
|
1338
|
|
|
1339 ngx_add_timer(ev, next * 1000);
|
|
|
1340 }
|
|
514
|
1341
|
|
|
1342
|
|
|
1343 static void
|
|
|
1344 ngx_cache_loader_process_handler(ngx_event_t *ev)
|
|
|
1345 {
|
|
|
1346 ngx_uint_t i;
|
|
|
1347 ngx_path_t **path;
|
|
|
1348 ngx_cycle_t *cycle;
|
|
|
1349
|
|
|
1350 cycle = (ngx_cycle_t *) ngx_cycle;
|
|
|
1351
|
|
|
1352 path = cycle->pathes.elts;
|
|
|
1353 for (i = 0; i < cycle->pathes.nelts; i++) {
|
|
|
1354
|
|
|
1355 if (ngx_terminate || ngx_quit) {
|
|
|
1356 break;
|
|
|
1357 }
|
|
|
1358
|
|
|
1359 if (path[i]->loader) {
|
|
|
1360 path[i]->loader(path[i]->data);
|
|
|
1361 ngx_time_update(0, 0);
|
|
|
1362 }
|
|
|
1363 }
|
|
|
1364
|
|
|
1365 exit(0);
|
|
|
1366 }
|
