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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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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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40 sig_atomic_t ngx_terminate;
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41 sig_atomic_t ngx_quit;
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26
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42 sig_atomic_t ngx_debug_quit;
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0
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43 ngx_uint_t ngx_exiting;
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44 sig_atomic_t ngx_reconfigure;
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45 sig_atomic_t ngx_reopen;
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46
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47 sig_atomic_t ngx_change_binary;
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48 ngx_pid_t ngx_new_binary;
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49 ngx_uint_t ngx_inherited;
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50 ngx_uint_t ngx_daemonized;
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51
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52 sig_atomic_t ngx_noaccept;
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53 ngx_uint_t ngx_noaccepting;
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54 ngx_uint_t ngx_restart;
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55
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56
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57 #if (NGX_THREADS)
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58 volatile ngx_thread_t ngx_threads[NGX_MAX_THREADS];
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59 ngx_int_t ngx_threads_n;
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60 #endif
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61
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62
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126
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63 u_long cpu_affinity;
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64 static u_char master_process[] = "master process";
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0
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65
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66
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525
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67 static ngx_cache_manager_ctx_t ngx_cache_manager_ctx = {
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68 ngx_cache_manager_process_handler, "cache manager process", 0
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69 };
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70
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71 static ngx_cache_manager_ctx_t ngx_cache_loader_ctx = {
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72 ngx_cache_loader_process_handler, "cache loader process", 60000
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73 };
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74
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75
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332
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76 static ngx_cycle_t ngx_exit_cycle;
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77 static ngx_log_t ngx_exit_log;
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78 static ngx_open_file_t ngx_exit_log_file;
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79
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80
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50
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81 void
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82 ngx_master_process_cycle(ngx_cycle_t *cycle)
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0
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83 {
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84 char *title;
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85 u_char *p;
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86 size_t size;
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87 ngx_int_t i;
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80
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88 ngx_uint_t n;
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0
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89 sigset_t set;
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90 struct itimerval itv;
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91 ngx_uint_t live;
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92 ngx_msec_t delay;
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80
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93 ngx_listening_t *ls;
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0
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94 ngx_core_conf_t *ccf;
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95
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96 sigemptyset(&set);
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97 sigaddset(&set, SIGCHLD);
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98 sigaddset(&set, SIGALRM);
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99 sigaddset(&set, SIGIO);
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100 sigaddset(&set, SIGINT);
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101 sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
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102 sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
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103 sigaddset(&set, ngx_signal_value(NGX_NOACCEPT_SIGNAL));
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104 sigaddset(&set, ngx_signal_value(NGX_TERMINATE_SIGNAL));
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105 sigaddset(&set, ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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106 sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
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107
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108 if (sigprocmask(SIG_BLOCK, &set, NULL) == -1) {
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109 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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110 "sigprocmask() failed");
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111 }
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112
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113 sigemptyset(&set);
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114
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115
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116 size = sizeof(master_process);
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117
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2
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118 for (i = 0; i < ngx_argc; i++) {
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119 size += ngx_strlen(ngx_argv[i]) + 1;
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0
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120 }
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121
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382
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122 title = ngx_pnalloc(cycle->pool, size);
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0
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123
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124 p = ngx_cpymem(title, master_process, sizeof(master_process) - 1);
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2
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125 for (i = 0; i < ngx_argc; i++) {
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126 *p++ = ' ';
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2
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127 p = ngx_cpystrn(p, (u_char *) ngx_argv[i], size);
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0
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128 }
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129
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130 ngx_setproctitle(title);
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131
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132
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133 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
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134
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135 ngx_start_worker_processes(cycle, ccf->worker_processes,
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136 NGX_PROCESS_RESPAWN);
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525
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137 ngx_start_cache_manager_processes(cycle, 0);
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0
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138
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139 ngx_new_binary = 0;
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140 delay = 0;
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141 live = 1;
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142
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143 for ( ;; ) {
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144 if (delay) {
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145 delay *= 2;
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146
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147 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
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148 "temination cycle: %d", delay);
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149
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150 itv.it_interval.tv_sec = 0;
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151 itv.it_interval.tv_usec = 0;
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152 itv.it_value.tv_sec = delay / 1000;
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153 itv.it_value.tv_usec = (delay % 1000 ) * 1000;
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154
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155 if (setitimer(ITIMER_REAL, &itv, NULL) == -1) {
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156 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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157 "setitimer() failed");
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158 }
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159 }
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160
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161 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "sigsuspend");
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162
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163 sigsuspend(&set);
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164
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112
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165 ngx_time_update(0, 0);
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0
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166
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167 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "wake up");
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168
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169 if (ngx_reap) {
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170 ngx_reap = 0;
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340
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171 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "reap children");
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0
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172
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340
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173 live = ngx_reap_children(cycle);
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0
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174 }
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175
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176 if (!live && (ngx_terminate || ngx_quit)) {
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122
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177 ngx_master_process_exit(cycle);
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0
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178 }
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179
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180 if (ngx_terminate) {
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181 if (delay == 0) {
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182 delay = 50;
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183 }
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184
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185 if (delay > 1000) {
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186 ngx_signal_worker_processes(cycle, SIGKILL);
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187 } else {
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188 ngx_signal_worker_processes(cycle,
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189 ngx_signal_value(NGX_TERMINATE_SIGNAL));
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190 }
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191
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192 continue;
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193 }
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194
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195 if (ngx_quit) {
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196 ngx_signal_worker_processes(cycle,
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197 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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80
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198
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199 ls = cycle->listening.elts;
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200 for (n = 0; n < cycle->listening.nelts; n++) {
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201 if (ngx_close_socket(ls[n].fd) == -1) {
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202 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_socket_errno,
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203 ngx_close_socket_n " %V failed",
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204 &ls[n].addr_text);
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205 }
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206 }
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207 cycle->listening.nelts = 0;
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208
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0
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209 continue;
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210 }
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211
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212 if (ngx_reconfigure) {
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213 ngx_reconfigure = 0;
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214
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215 if (ngx_new_binary) {
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216 ngx_start_worker_processes(cycle, ccf->worker_processes,
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217 NGX_PROCESS_RESPAWN);
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525
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218 ngx_start_cache_manager_processes(cycle, 0);
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0
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219 ngx_noaccepting = 0;
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220
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221 continue;
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222 }
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223
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26
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224 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
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0
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225
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226 cycle = ngx_init_cycle(cycle);
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227 if (cycle == NULL) {
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228 cycle = (ngx_cycle_t *) ngx_cycle;
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229 continue;
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230 }
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231
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232 ngx_cycle = cycle;
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233 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
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234 ngx_core_module);
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235 ngx_start_worker_processes(cycle, ccf->worker_processes,
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236 NGX_PROCESS_JUST_RESPAWN);
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525
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237 ngx_start_cache_manager_processes(cycle, 1);
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0
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238 live = 1;
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239 ngx_signal_worker_processes(cycle,
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240 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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241 }
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242
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243 if (ngx_restart) {
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244 ngx_restart = 0;
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245 ngx_start_worker_processes(cycle, ccf->worker_processes,
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246 NGX_PROCESS_RESPAWN);
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525
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247 ngx_start_cache_manager_processes(cycle, 0);
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0
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248 live = 1;
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249 }
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250
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251 if (ngx_reopen) {
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252 ngx_reopen = 0;
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26
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253 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
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0
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254 ngx_reopen_files(cycle, ccf->user);
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255 ngx_signal_worker_processes(cycle,
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256 ngx_signal_value(NGX_REOPEN_SIGNAL));
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257 }
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258
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259 if (ngx_change_binary) {
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260 ngx_change_binary = 0;
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26
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261 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "changing binary");
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2
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262 ngx_new_binary = ngx_exec_new_binary(cycle, ngx_argv);
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0
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263 }
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264
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265 if (ngx_noaccept) {
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266 ngx_noaccept = 0;
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267 ngx_noaccepting = 1;
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268 ngx_signal_worker_processes(cycle,
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269 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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270 }
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271 }
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272 }
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273
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274
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50
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275 void
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276 ngx_single_process_cycle(ngx_cycle_t *cycle)
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0
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277 {
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278 ngx_uint_t i;
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279
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280 ngx_init_temp_number();
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281
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282 for (i = 0; ngx_modules[i]; i++) {
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283 if (ngx_modules[i]->init_process) {
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284 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
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285 /* fatal */
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286 exit(2);
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287 }
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288 }
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289 }
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290
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291 for ( ;; ) {
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292 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
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293
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112
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294 ngx_process_events_and_timers(cycle);
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0
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295
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296 if (ngx_terminate || ngx_quit) {
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120
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297
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298 for (i = 0; ngx_modules[i]; i++) {
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299 if (ngx_modules[i]->exit_process) {
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300 ngx_modules[i]->exit_process(cycle);
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301 }
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302 }
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303
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122
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304 ngx_master_process_exit(cycle);
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0
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305 }
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306
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307 if (ngx_reconfigure) {
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308 ngx_reconfigure = 0;
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26
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309 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
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0
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310
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311 cycle = ngx_init_cycle(cycle);
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312 if (cycle == NULL) {
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313 cycle = (ngx_cycle_t *) ngx_cycle;
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314 continue;
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315 }
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316
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317 ngx_cycle = cycle;
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318 }
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319
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320 if (ngx_reopen) {
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321 ngx_reopen = 0;
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26
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322 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
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0
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323 ngx_reopen_files(cycle, (ngx_uid_t) -1);
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324 }
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325 }
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326 }
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327
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328
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50
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329 static void
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330 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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331 {
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525
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332 ngx_int_t i;
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106
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333 ngx_channel_t ch;
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0
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334
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26
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335 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start worker processes");
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0
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336
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337 ch.command = NGX_CMD_OPEN_CHANNEL;
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338
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126
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339 for (i = 0; i < n; i++) {
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340
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341 cpu_affinity = ngx_get_cpu_affinity(i);
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342
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0
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343 ngx_spawn_process(cycle, ngx_worker_process_cycle, NULL,
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344 "worker process", type);
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345
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346 ch.pid = ngx_processes[ngx_process_slot].pid;
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347 ch.slot = ngx_process_slot;
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348 ch.fd = ngx_processes[ngx_process_slot].channel[0];
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349
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525
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350 ngx_pass_open_channel(cycle, &ch);
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0
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351 }
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352 }
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353
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354
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50
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355 static void
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525
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356 ngx_start_cache_manager_processes(ngx_cycle_t *cycle, ngx_uint_t respawn)
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16
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357 {
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525
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358 ngx_uint_t i, manager, loader;
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473
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359 ngx_path_t **path;
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360 ngx_channel_t ch;
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16
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361
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525
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362 manager = 0;
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363 loader = 0;
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364
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473
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365 path = ngx_cycle->pathes.elts;
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525
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366 for (i = 0; i < ngx_cycle->pathes.nelts; i++) {
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367
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368 if (path[i]->manager) {
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369 manager = 1;
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370 }
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371
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372 if (path[i]->loader) {
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373 loader = 1;
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473
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374 }
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375 }
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376
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525
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377 if (manager == 0) {
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378 return;
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379 }
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473
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380
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525
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381 ngx_spawn_process(cycle, ngx_cache_manager_process_cycle,
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382 &ngx_cache_manager_ctx, "cache manager process",
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|
383 respawn ? NGX_PROCESS_JUST_RESPAWN : NGX_PROCESS_RESPAWN);
|
|
16
|
384
|
|
|
385 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
|
386 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
|
387 ch.slot = ngx_process_slot;
|
|
|
388 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
|
389
|
|
525
|
390 ngx_pass_open_channel(cycle, &ch);
|
|
|
391
|
|
|
392 if (loader == 0) {
|
|
|
393 return;
|
|
|
394 }
|
|
|
395
|
|
|
396 ngx_spawn_process(cycle, ngx_cache_manager_process_cycle,
|
|
|
397 &ngx_cache_loader_ctx, "cache loader process",
|
|
|
398 respawn ? NGX_PROCESS_JUST_SPAWN : NGX_PROCESS_NORESPAWN);
|
|
|
399
|
|
|
400 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
|
401 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
|
402 ch.slot = ngx_process_slot;
|
|
|
403 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
|
404
|
|
|
405 ngx_pass_open_channel(cycle, &ch);
|
|
|
406 }
|
|
|
407
|
|
|
408
|
|
|
409 static void
|
|
|
410 ngx_pass_open_channel(ngx_cycle_t *cycle, ngx_channel_t *ch)
|
|
|
411 {
|
|
|
412 ngx_int_t i;
|
|
|
413
|
|
16
|
414 for (i = 0; i < ngx_last_process; i++) {
|
|
|
415
|
|
|
416 if (i == ngx_process_slot
|
|
|
417 || ngx_processes[i].pid == -1
|
|
|
418 || ngx_processes[i].channel[0] == -1)
|
|
|
419 {
|
|
|
420 continue;
|
|
|
421 }
|
|
|
422
|
|
|
423 ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
424 "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",
|
|
525
|
425 ch->slot, ch->pid, ch->fd,
|
|
16
|
426 i, ngx_processes[i].pid,
|
|
|
427 ngx_processes[i].channel[0]);
|
|
|
428
|
|
|
429 /* TODO: NGX_AGAIN */
|
|
|
430
|
|
|
431 ngx_write_channel(ngx_processes[i].channel[0],
|
|
525
|
432 ch, sizeof(ngx_channel_t), cycle->log);
|
|
16
|
433 }
|
|
|
434 }
|
|
|
435
|
|
|
436
|
|
50
|
437 static void
|
|
|
438 ngx_signal_worker_processes(ngx_cycle_t *cycle, int signo)
|
|
0
|
439 {
|
|
|
440 ngx_int_t i;
|
|
|
441 ngx_err_t err;
|
|
|
442 ngx_channel_t ch;
|
|
|
443
|
|
342
|
444 #if (NGX_BROKEN_SCM_RIGHTS)
|
|
|
445
|
|
|
446 ch.command = 0;
|
|
|
447
|
|
|
448 #else
|
|
|
449
|
|
0
|
450 switch (signo) {
|
|
|
451
|
|
|
452 case ngx_signal_value(NGX_SHUTDOWN_SIGNAL):
|
|
|
453 ch.command = NGX_CMD_QUIT;
|
|
|
454 break;
|
|
|
455
|
|
|
456 case ngx_signal_value(NGX_TERMINATE_SIGNAL):
|
|
|
457 ch.command = NGX_CMD_TERMINATE;
|
|
|
458 break;
|
|
|
459
|
|
|
460 case ngx_signal_value(NGX_REOPEN_SIGNAL):
|
|
|
461 ch.command = NGX_CMD_REOPEN;
|
|
|
462 break;
|
|
|
463
|
|
|
464 default:
|
|
|
465 ch.command = 0;
|
|
|
466 }
|
|
|
467
|
|
342
|
468 #endif
|
|
|
469
|
|
0
|
470 ch.fd = -1;
|
|
|
471
|
|
|
472
|
|
|
473 for (i = 0; i < ngx_last_process; i++) {
|
|
|
474
|
|
|
475 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
476 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
|
0
|
477 i,
|
|
|
478 ngx_processes[i].pid,
|
|
|
479 ngx_processes[i].exiting,
|
|
|
480 ngx_processes[i].exited,
|
|
|
481 ngx_processes[i].detached,
|
|
|
482 ngx_processes[i].respawn,
|
|
525
|
483 ngx_processes[i].just_spawn);
|
|
0
|
484
|
|
|
485 if (ngx_processes[i].detached || ngx_processes[i].pid == -1) {
|
|
|
486 continue;
|
|
|
487 }
|
|
|
488
|
|
525
|
489 if (ngx_processes[i].just_spawn) {
|
|
|
490 ngx_processes[i].just_spawn = 0;
|
|
0
|
491 continue;
|
|
|
492 }
|
|
|
493
|
|
|
494 if (ngx_processes[i].exiting
|
|
|
495 && signo == ngx_signal_value(NGX_SHUTDOWN_SIGNAL))
|
|
|
496 {
|
|
|
497 continue;
|
|
|
498 }
|
|
|
499
|
|
|
500 if (ch.command) {
|
|
|
501 if (ngx_write_channel(ngx_processes[i].channel[0],
|
|
290
|
502 &ch, sizeof(ngx_channel_t), cycle->log)
|
|
|
503 == NGX_OK)
|
|
0
|
504 {
|
|
|
505 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
|
506 ngx_processes[i].exiting = 1;
|
|
|
507 }
|
|
|
508
|
|
|
509 continue;
|
|
|
510 }
|
|
|
511 }
|
|
|
512
|
|
|
513 ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
514 "kill (%P, %d)" , ngx_processes[i].pid, signo);
|
|
0
|
515
|
|
|
516 if (kill(ngx_processes[i].pid, signo) == -1) {
|
|
|
517 err = ngx_errno;
|
|
|
518 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
10
|
519 "kill(%P, %d) failed",
|
|
0
|
520 ngx_processes[i].pid, signo);
|
|
|
521
|
|
|
522 if (err == NGX_ESRCH) {
|
|
|
523 ngx_processes[i].exited = 1;
|
|
|
524 ngx_processes[i].exiting = 0;
|
|
|
525 ngx_reap = 1;
|
|
|
526 }
|
|
|
527
|
|
|
528 continue;
|
|
|
529 }
|
|
|
530
|
|
|
531 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
|
532 ngx_processes[i].exiting = 1;
|
|
|
533 }
|
|
|
534 }
|
|
|
535 }
|
|
|
536
|
|
|
537
|
|
50
|
538 static ngx_uint_t
|
|
340
|
539 ngx_reap_children(ngx_cycle_t *cycle)
|
|
0
|
540 {
|
|
92
|
541 ngx_int_t i, n;
|
|
|
542 ngx_uint_t live;
|
|
|
543 ngx_channel_t ch;
|
|
|
544 ngx_core_conf_t *ccf;
|
|
0
|
545
|
|
|
546 ch.command = NGX_CMD_CLOSE_CHANNEL;
|
|
|
547 ch.fd = -1;
|
|
|
548
|
|
|
549 live = 0;
|
|
|
550 for (i = 0; i < ngx_last_process; i++) {
|
|
|
551
|
|
|
552 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
553 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
|
0
|
554 i,
|
|
|
555 ngx_processes[i].pid,
|
|
|
556 ngx_processes[i].exiting,
|
|
|
557 ngx_processes[i].exited,
|
|
|
558 ngx_processes[i].detached,
|
|
|
559 ngx_processes[i].respawn,
|
|
525
|
560 ngx_processes[i].just_spawn);
|
|
0
|
561
|
|
|
562 if (ngx_processes[i].pid == -1) {
|
|
|
563 continue;
|
|
|
564 }
|
|
|
565
|
|
|
566 if (ngx_processes[i].exited) {
|
|
|
567
|
|
|
568 if (!ngx_processes[i].detached) {
|
|
|
569 ngx_close_channel(ngx_processes[i].channel, cycle->log);
|
|
|
570
|
|
|
571 ngx_processes[i].channel[0] = -1;
|
|
|
572 ngx_processes[i].channel[1] = -1;
|
|
|
573
|
|
|
574 ch.pid = ngx_processes[i].pid;
|
|
|
575 ch.slot = i;
|
|
|
576
|
|
|
577 for (n = 0; n < ngx_last_process; n++) {
|
|
|
578 if (ngx_processes[n].exited
|
|
|
579 || ngx_processes[n].pid == -1
|
|
|
580 || ngx_processes[n].channel[0] == -1)
|
|
|
581 {
|
|
|
582 continue;
|
|
|
583 }
|
|
|
584
|
|
|
585 ngx_log_debug3(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
586 "pass close channel s:%i pid:%P to:%P",
|
|
|
587 ch.slot, ch.pid, ngx_processes[n].pid);
|
|
0
|
588
|
|
|
589 /* TODO: NGX_AGAIN */
|
|
|
590
|
|
|
591 ngx_write_channel(ngx_processes[n].channel[0],
|
|
|
592 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
|
593 }
|
|
|
594 }
|
|
|
595
|
|
|
596 if (ngx_processes[i].respawn
|
|
|
597 && !ngx_processes[i].exiting
|
|
|
598 && !ngx_terminate
|
|
|
599 && !ngx_quit)
|
|
|
600 {
|
|
|
601 if (ngx_spawn_process(cycle, ngx_processes[i].proc,
|
|
|
602 ngx_processes[i].data,
|
|
|
603 ngx_processes[i].name, i)
|
|
92
|
604 == NGX_INVALID_PID)
|
|
0
|
605 {
|
|
|
606 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
607 "can not respawn %s", ngx_processes[i].name);
|
|
|
608 continue;
|
|
|
609 }
|
|
|
610
|
|
22
|
611
|
|
|
612 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
|
613 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
|
614 ch.slot = ngx_process_slot;
|
|
|
615 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
|
616
|
|
525
|
617 ngx_pass_open_channel(cycle, &ch);
|
|
22
|
618
|
|
0
|
619 live = 1;
|
|
|
620
|
|
|
621 continue;
|
|
|
622 }
|
|
|
623
|
|
|
624 if (ngx_processes[i].pid == ngx_new_binary) {
|
|
92
|
625
|
|
|
626 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
|
|
|
627 ngx_core_module);
|
|
|
628
|
|
|
629 if (ngx_rename_file((char *) ccf->oldpid.data,
|
|
|
630 (char *) ccf->pid.data)
|
|
|
631 != NGX_OK)
|
|
|
632 {
|
|
|
633 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
634 ngx_rename_file_n " %s back to %s failed "
|
|
|
635 "after the new binary process \"%s\" exited",
|
|
|
636 ccf->oldpid.data, ccf->pid.data, ngx_argv[0]);
|
|
|
637 }
|
|
|
638
|
|
0
|
639 ngx_new_binary = 0;
|
|
|
640 if (ngx_noaccepting) {
|
|
|
641 ngx_restart = 1;
|
|
|
642 ngx_noaccepting = 0;
|
|
|
643 }
|
|
|
644 }
|
|
|
645
|
|
|
646 if (i == ngx_last_process - 1) {
|
|
|
647 ngx_last_process--;
|
|
|
648
|
|
|
649 } else {
|
|
|
650 ngx_processes[i].pid = -1;
|
|
|
651 }
|
|
|
652
|
|
|
653 } else if (ngx_processes[i].exiting || !ngx_processes[i].detached) {
|
|
|
654 live = 1;
|
|
|
655 }
|
|
|
656 }
|
|
|
657
|
|
|
658 return live;
|
|
|
659 }
|
|
|
660
|
|
|
661
|
|
50
|
662 static void
|
|
122
|
663 ngx_master_process_exit(ngx_cycle_t *cycle)
|
|
0
|
664 {
|
|
120
|
665 ngx_uint_t i;
|
|
|
666
|
|
0
|
667 ngx_delete_pidfile(cycle);
|
|
|
668
|
|
26
|
669 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit");
|
|
0
|
670
|
|
120
|
671 for (i = 0; ngx_modules[i]; i++) {
|
|
|
672 if (ngx_modules[i]->exit_master) {
|
|
|
673 ngx_modules[i]->exit_master(cycle);
|
|
|
674 }
|
|
|
675 }
|
|
|
676
|
|
54
|
677 /*
|
|
332
|
678 * Copy ngx_cycle->log related data to the special static exit cycle,
|
|
|
679 * log, and log file structures enough to allow a signal handler to log.
|
|
|
680 * The handler may be called when standard ngx_cycle->log allocated from
|
|
|
681 * ngx_cycle->pool is already destroyed.
|
|
54
|
682 */
|
|
|
683
|
|
332
|
684 ngx_exit_log_file.fd = ngx_cycle->log->file->fd;
|
|
|
685
|
|
|
686 ngx_exit_log = *ngx_cycle->log;
|
|
|
687 ngx_exit_log.file = &ngx_exit_log_file;
|
|
|
688
|
|
|
689 ngx_exit_cycle.log = &ngx_exit_log;
|
|
|
690 ngx_cycle = &ngx_exit_cycle;
|
|
|
691
|
|
0
|
692 ngx_destroy_pool(cycle->pool);
|
|
|
693
|
|
|
694 exit(0);
|
|
|
695 }
|
|
|
696
|
|
|
697
|
|
50
|
698 static void
|
|
|
699 ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data)
|
|
0
|
700 {
|
|
290
|
701 ngx_uint_t i;
|
|
|
702 ngx_connection_t *c;
|
|
18
|
703
|
|
22
|
704 ngx_worker_process_init(cycle, 1);
|
|
0
|
705
|
|
|
706 ngx_setproctitle("worker process");
|
|
|
707
|
|
|
708 #if (NGX_THREADS)
|
|
356
|
709 {
|
|
|
710 ngx_int_t n;
|
|
|
711 ngx_err_t err;
|
|
|
712 ngx_core_conf_t *ccf;
|
|
0
|
713
|
|
18
|
714 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
715
|
|
0
|
716 if (ngx_threads_n) {
|
|
290
|
717 if (ngx_init_threads(ngx_threads_n, ccf->thread_stack_size, cycle)
|
|
|
718 == NGX_ERROR)
|
|
0
|
719 {
|
|
|
720 /* fatal */
|
|
|
721 exit(2);
|
|
|
722 }
|
|
|
723
|
|
|
724 err = ngx_thread_key_create(&ngx_core_tls_key);
|
|
|
725 if (err != 0) {
|
|
|
726 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
727 ngx_thread_key_create_n " failed");
|
|
|
728 /* fatal */
|
|
|
729 exit(2);
|
|
|
730 }
|
|
|
731
|
|
|
732 for (n = 0; n < ngx_threads_n; n++) {
|
|
|
733
|
|
50
|
734 ngx_threads[n].cv = ngx_cond_init(cycle->log);
|
|
|
735
|
|
|
736 if (ngx_threads[n].cv == NULL) {
|
|
0
|
737 /* fatal */
|
|
|
738 exit(2);
|
|
|
739 }
|
|
|
740
|
|
|
741 if (ngx_create_thread((ngx_tid_t *) &ngx_threads[n].tid,
|
|
|
742 ngx_worker_thread_cycle,
|
|
290
|
743 (void *) &ngx_threads[n], cycle->log)
|
|
|
744 != 0)
|
|
0
|
745 {
|
|
|
746 /* fatal */
|
|
|
747 exit(2);
|
|
|
748 }
|
|
|
749 }
|
|
|
750 }
|
|
356
|
751 }
|
|
0
|
752 #endif
|
|
|
753
|
|
|
754 for ( ;; ) {
|
|
290
|
755
|
|
|
756 if (ngx_exiting) {
|
|
|
757
|
|
|
758 c = cycle->connections;
|
|
|
759
|
|
|
760 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
761
|
|
|
762 /* THREAD: lock */
|
|
0
|
763
|
|
290
|
764 if (c[i].fd != -1 && c[i].idle) {
|
|
|
765 c[i].close = 1;
|
|
|
766 c[i].read->handler(c[i].read);
|
|
|
767 }
|
|
|
768 }
|
|
|
769
|
|
|
770 if (ngx_event_timer_rbtree.root == ngx_event_timer_rbtree.sentinel)
|
|
|
771 {
|
|
|
772 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
|
773
|
|
|
774 ngx_worker_process_exit(cycle);
|
|
|
775 }
|
|
0
|
776 }
|
|
|
777
|
|
|
778 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
|
|
|
779
|
|
112
|
780 ngx_process_events_and_timers(cycle);
|
|
0
|
781
|
|
|
782 if (ngx_terminate) {
|
|
26
|
783 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
0
|
784
|
|
122
|
785 ngx_worker_process_exit(cycle);
|
|
0
|
786 }
|
|
|
787
|
|
|
788 if (ngx_quit) {
|
|
|
789 ngx_quit = 0;
|
|
26
|
790 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
0
|
791 "gracefully shutting down");
|
|
|
792 ngx_setproctitle("worker process is shutting down");
|
|
|
793
|
|
|
794 if (!ngx_exiting) {
|
|
|
795 ngx_close_listening_sockets(cycle);
|
|
|
796 ngx_exiting = 1;
|
|
|
797 }
|
|
|
798 }
|
|
|
799
|
|
|
800 if (ngx_reopen) {
|
|
|
801 ngx_reopen = 0;
|
|
26
|
802 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
|
0
|
803 ngx_reopen_files(cycle, -1);
|
|
|
804 }
|
|
|
805 }
|
|
|
806 }
|
|
|
807
|
|
|
808
|
|
50
|
809 static void
|
|
|
810 ngx_worker_process_init(ngx_cycle_t *cycle, ngx_uint_t priority)
|
|
16
|
811 {
|
|
278
|
812 sigset_t set;
|
|
|
813 ngx_int_t n;
|
|
|
814 ngx_uint_t i;
|
|
|
815 struct rlimit rlmt;
|
|
|
816 ngx_core_conf_t *ccf;
|
|
|
817 ngx_listening_t *ls;
|
|
16
|
818
|
|
|
819 ngx_process = NGX_PROCESS_WORKER;
|
|
|
820
|
|
278
|
821 if (ngx_set_environment(cycle, NULL) == NULL) {
|
|
|
822 /* fatal */
|
|
|
823 exit(2);
|
|
|
824 }
|
|
|
825
|
|
16
|
826 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
827
|
|
328
|
828 if (priority && ccf->priority != 0) {
|
|
|
829 if (setpriority(PRIO_PROCESS, 0, ccf->priority) == -1) {
|
|
|
830 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
831 "setpriority(%d) failed", ccf->priority);
|
|
22
|
832 }
|
|
328
|
833 }
|
|
22
|
834
|
|
328
|
835 if (ccf->rlimit_nofile != NGX_CONF_UNSET) {
|
|
|
836 rlmt.rlim_cur = (rlim_t) ccf->rlimit_nofile;
|
|
|
837 rlmt.rlim_max = (rlim_t) ccf->rlimit_nofile;
|
|
92
|
838
|
|
328
|
839 if (setrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
|
|
|
840 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
841 "setrlimit(RLIMIT_NOFILE, %i) failed",
|
|
|
842 ccf->rlimit_nofile);
|
|
92
|
843 }
|
|
328
|
844 }
|
|
92
|
845
|
|
328
|
846 if (ccf->rlimit_core != NGX_CONF_UNSET_SIZE) {
|
|
|
847 rlmt.rlim_cur = (rlim_t) ccf->rlimit_core;
|
|
|
848 rlmt.rlim_max = (rlim_t) ccf->rlimit_core;
|
|
138
|
849
|
|
328
|
850 if (setrlimit(RLIMIT_CORE, &rlmt) == -1) {
|
|
|
851 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
852 "setrlimit(RLIMIT_CORE, %i) failed",
|
|
|
853 ccf->rlimit_core);
|
|
138
|
854 }
|
|
328
|
855 }
|
|
138
|
856
|
|
92
|
857 #ifdef RLIMIT_SIGPENDING
|
|
328
|
858 if (ccf->rlimit_sigpending != NGX_CONF_UNSET) {
|
|
|
859 rlmt.rlim_cur = (rlim_t) ccf->rlimit_sigpending;
|
|
|
860 rlmt.rlim_max = (rlim_t) ccf->rlimit_sigpending;
|
|
92
|
861
|
|
328
|
862 if (setrlimit(RLIMIT_SIGPENDING, &rlmt) == -1) {
|
|
|
863 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
864 "setrlimit(RLIMIT_SIGPENDING, %i) failed",
|
|
|
865 ccf->rlimit_sigpending);
|
|
92
|
866 }
|
|
328
|
867 }
|
|
92
|
868 #endif
|
|
|
869
|
|
328
|
870 if (geteuid() == 0) {
|
|
16
|
871 if (setgid(ccf->group) == -1) {
|
|
|
872 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
873 "setgid(%d) failed", ccf->group);
|
|
|
874 /* fatal */
|
|
|
875 exit(2);
|
|
|
876 }
|
|
|
877
|
|
22
|
878 if (initgroups(ccf->username, ccf->group) == -1) {
|
|
|
879 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
880 "initgroups(%s, %d) failed",
|
|
|
881 ccf->username, ccf->group);
|
|
|
882 }
|
|
|
883
|
|
16
|
884 if (setuid(ccf->user) == -1) {
|
|
|
885 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
886 "setuid(%d) failed", ccf->user);
|
|
|
887 /* fatal */
|
|
|
888 exit(2);
|
|
|
889 }
|
|
|
890 }
|
|
|
891
|
|
126
|
892 #if (NGX_HAVE_SCHED_SETAFFINITY)
|
|
|
893
|
|
|
894 if (cpu_affinity) {
|
|
|
895 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
|
896 "sched_setaffinity(0x%08Xl)", cpu_affinity);
|
|
|
897
|
|
|
898 if (sched_setaffinity(0, 32, (cpu_set_t *) &cpu_affinity) == -1) {
|
|
|
899 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
900 "sched_setaffinity(0x%08Xl) failed", cpu_affinity);
|
|
|
901 }
|
|
|
902 }
|
|
|
903
|
|
|
904 #endif
|
|
|
905
|
|
16
|
906 #if (NGX_HAVE_PR_SET_DUMPABLE)
|
|
|
907
|
|
|
908 /* allow coredump after setuid() in Linux 2.4.x */
|
|
|
909
|
|
|
910 if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1) {
|
|
|
911 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
912 "prctl(PR_SET_DUMPABLE) failed");
|
|
|
913 }
|
|
|
914
|
|
|
915 #endif
|
|
|
916
|
|
70
|
917 if (ccf->working_directory.len) {
|
|
72
|
918 if (chdir((char *) ccf->working_directory.data) == -1) {
|
|
70
|
919 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
920 "chdir(\"%s\") failed", ccf->working_directory.data);
|
|
|
921 /* fatal */
|
|
|
922 exit(2);
|
|
|
923 }
|
|
|
924 }
|
|
|
925
|
|
16
|
926 sigemptyset(&set);
|
|
|
927
|
|
|
928 if (sigprocmask(SIG_SETMASK, &set, NULL) == -1) {
|
|
|
929 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
930 "sigprocmask() failed");
|
|
|
931 }
|
|
|
932
|
|
|
933 ngx_init_temp_number();
|
|
|
934
|
|
|
935 /*
|
|
|
936 * disable deleting previous events for the listening sockets because
|
|
|
937 * in the worker processes there are no events at all at this point
|
|
126
|
938 */
|
|
16
|
939 ls = cycle->listening.elts;
|
|
|
940 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
92
|
941 ls[i].previous = NULL;
|
|
16
|
942 }
|
|
|
943
|
|
|
944 for (i = 0; ngx_modules[i]; i++) {
|
|
|
945 if (ngx_modules[i]->init_process) {
|
|
|
946 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
|
|
|
947 /* fatal */
|
|
|
948 exit(2);
|
|
|
949 }
|
|
|
950 }
|
|
|
951 }
|
|
|
952
|
|
|
953 for (n = 0; n < ngx_last_process; n++) {
|
|
|
954
|
|
|
955 if (ngx_processes[n].pid == -1) {
|
|
|
956 continue;
|
|
|
957 }
|
|
|
958
|
|
|
959 if (n == ngx_process_slot) {
|
|
|
960 continue;
|
|
|
961 }
|
|
|
962
|
|
|
963 if (ngx_processes[n].channel[1] == -1) {
|
|
|
964 continue;
|
|
|
965 }
|
|
|
966
|
|
|
967 if (close(ngx_processes[n].channel[1]) == -1) {
|
|
|
968 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
969 "close() channel failed");
|
|
|
970 }
|
|
|
971 }
|
|
|
972
|
|
|
973 if (close(ngx_processes[ngx_process_slot].channel[0]) == -1) {
|
|
|
974 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
975 "close() channel failed");
|
|
|
976 }
|
|
|
977
|
|
|
978 #if 0
|
|
|
979 ngx_last_process = 0;
|
|
|
980 #endif
|
|
|
981
|
|
|
982 if (ngx_add_channel_event(cycle, ngx_channel, NGX_READ_EVENT,
|
|
290
|
983 ngx_channel_handler)
|
|
|
984 == NGX_ERROR)
|
|
16
|
985 {
|
|
|
986 /* fatal */
|
|
|
987 exit(2);
|
|
|
988 }
|
|
|
989 }
|
|
|
990
|
|
|
991
|
|
50
|
992 static void
|
|
122
|
993 ngx_worker_process_exit(ngx_cycle_t *cycle)
|
|
|
994 {
|
|
|
995 ngx_uint_t i;
|
|
|
996 ngx_connection_t *c;
|
|
|
997
|
|
|
998 #if (NGX_THREADS)
|
|
|
999 ngx_terminate = 1;
|
|
|
1000
|
|
|
1001 ngx_wakeup_worker_threads(cycle);
|
|
|
1002 #endif
|
|
|
1003
|
|
|
1004 for (i = 0; ngx_modules[i]; i++) {
|
|
|
1005 if (ngx_modules[i]->exit_process) {
|
|
|
1006 ngx_modules[i]->exit_process(cycle);
|
|
|
1007 }
|
|
|
1008 }
|
|
|
1009
|
|
366
|
1010 if (ngx_exiting) {
|
|
136
|
1011 c = cycle->connections;
|
|
|
1012 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
1013 if (c[i].fd != -1
|
|
|
1014 && c[i].read
|
|
|
1015 && !c[i].read->accept
|
|
366
|
1016 && !c[i].read->channel
|
|
|
1017 && !c[i].read->resolver)
|
|
136
|
1018 {
|
|
|
1019 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
525
|
1020 "open socket #%d left in connection %ui",
|
|
|
1021 c[i].fd, i);
|
|
|
1022 ngx_debug_quit = 1;
|
|
136
|
1023 }
|
|
122
|
1024 }
|
|
|
1025
|
|
136
|
1026 if (ngx_debug_quit) {
|
|
525
|
1027 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, "aborting");
|
|
136
|
1028 ngx_debug_point();
|
|
|
1029 }
|
|
122
|
1030 }
|
|
|
1031
|
|
|
1032 /*
|
|
332
|
1033 * Copy ngx_cycle->log related data to the special static exit cycle,
|
|
|
1034 * log, and log file structures enough to allow a signal handler to log.
|
|
|
1035 * The handler may be called when standard ngx_cycle->log allocated from
|
|
|
1036 * ngx_cycle->pool is already destroyed.
|
|
122
|
1037 */
|
|
|
1038
|
|
332
|
1039 ngx_exit_log_file.fd = ngx_cycle->log->file->fd;
|
|
|
1040
|
|
|
1041 ngx_exit_log = *ngx_cycle->log;
|
|
|
1042 ngx_exit_log.file = &ngx_exit_log_file;
|
|
|
1043
|
|
|
1044 ngx_exit_cycle.log = &ngx_exit_log;
|
|
|
1045 ngx_cycle = &ngx_exit_cycle;
|
|
|
1046
|
|
122
|
1047 ngx_destroy_pool(cycle->pool);
|
|
332
|
1048
|
|
|
1049 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, "exit");
|
|
122
|
1050
|
|
|
1051 exit(0);
|
|
|
1052 }
|
|
|
1053
|
|
|
1054
|
|
|
1055 static void
|
|
50
|
1056 ngx_channel_handler(ngx_event_t *ev)
|
|
0
|
1057 {
|
|
|
1058 ngx_int_t n;
|
|
|
1059 ngx_channel_t ch;
|
|
|
1060 ngx_connection_t *c;
|
|
|
1061
|
|
16
|
1062 if (ev->timedout) {
|
|
|
1063 ev->timedout = 0;
|
|
|
1064 return;
|
|
|
1065 }
|
|
|
1066
|
|
0
|
1067 c = ev->data;
|
|
|
1068
|
|
|
1069 ngx_log_debug0(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel handler");
|
|
|
1070
|
|
378
|
1071 for ( ;; ) {
|
|
0
|
1072
|
|
378
|
1073 n = ngx_read_channel(c->fd, &ch, sizeof(ngx_channel_t), ev->log);
|
|
|
1074
|
|
|
1075 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel: %i", n);
|
|
0
|
1076
|
|
378
|
1077 if (n == NGX_ERROR) {
|
|
366
|
1078
|
|
378
|
1079 if (ngx_event_flags & NGX_USE_EPOLL_EVENT) {
|
|
|
1080 ngx_del_conn(c, 0);
|
|
|
1081 }
|
|
|
1082
|
|
|
1083 ngx_close_connection(c);
|
|
|
1084 return;
|
|
366
|
1085 }
|
|
|
1086
|
|
378
|
1087 if (ngx_event_flags & NGX_USE_EVENTPORT_EVENT) {
|
|
|
1088 if (ngx_add_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
1089 return;
|
|
|
1090 }
|
|
|
1091 }
|
|
10
|
1092
|
|
378
|
1093 if (n == NGX_AGAIN) {
|
|
290
|
1094 return;
|
|
|
1095 }
|
|
378
|
1096
|
|
|
1097 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1098 "channel command: %d", ch.command);
|
|
290
|
1099
|
|
378
|
1100 switch (ch.command) {
|
|
0
|
1101
|
|
378
|
1102 case NGX_CMD_QUIT:
|
|
|
1103 ngx_quit = 1;
|
|
|
1104 break;
|
|
0
|
1105
|
|
378
|
1106 case NGX_CMD_TERMINATE:
|
|
|
1107 ngx_terminate = 1;
|
|
|
1108 break;
|
|
0
|
1109
|
|
378
|
1110 case NGX_CMD_REOPEN:
|
|
|
1111 ngx_reopen = 1;
|
|
|
1112 break;
|
|
0
|
1113
|
|
378
|
1114 case NGX_CMD_OPEN_CHANNEL:
|
|
0
|
1115
|
|
378
|
1116 ngx_log_debug3(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1117 "get channel s:%i pid:%P fd:%d",
|
|
|
1118 ch.slot, ch.pid, ch.fd);
|
|
0
|
1119
|
|
378
|
1120 ngx_processes[ch.slot].pid = ch.pid;
|
|
|
1121 ngx_processes[ch.slot].channel[0] = ch.fd;
|
|
|
1122 break;
|
|
0
|
1123
|
|
378
|
1124 case NGX_CMD_CLOSE_CHANNEL:
|
|
0
|
1125
|
|
378
|
1126 ngx_log_debug4(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1127 "close channel s:%i pid:%P our:%P fd:%d",
|
|
|
1128 ch.slot, ch.pid, ngx_processes[ch.slot].pid,
|
|
|
1129 ngx_processes[ch.slot].channel[0]);
|
|
0
|
1130
|
|
378
|
1131 if (close(ngx_processes[ch.slot].channel[0]) == -1) {
|
|
|
1132 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
|
|
|
1133 "close() channel failed");
|
|
|
1134 }
|
|
|
1135
|
|
|
1136 ngx_processes[ch.slot].channel[0] = -1;
|
|
|
1137 break;
|
|
0
|
1138 }
|
|
|
1139 }
|
|
|
1140 }
|
|
|
1141
|
|
|
1142
|
|
|
1143 #if (NGX_THREADS)
|
|
|
1144
|
|
50
|
1145 static void
|
|
|
1146 ngx_wakeup_worker_threads(ngx_cycle_t *cycle)
|
|
0
|
1147 {
|
|
|
1148 ngx_int_t i;
|
|
|
1149 ngx_uint_t live;
|
|
|
1150
|
|
|
1151 for ( ;; ) {
|
|
|
1152
|
|
|
1153 live = 0;
|
|
|
1154
|
|
|
1155 for (i = 0; i < ngx_threads_n; i++) {
|
|
|
1156 if (ngx_threads[i].state < NGX_THREAD_EXIT) {
|
|
18
|
1157 if (ngx_cond_signal(ngx_threads[i].cv) == NGX_ERROR) {
|
|
|
1158 ngx_threads[i].state = NGX_THREAD_DONE;
|
|
0
|
1159
|
|
|
1160 } else {
|
|
|
1161 live = 1;
|
|
|
1162 }
|
|
|
1163 }
|
|
|
1164
|
|
|
1165 if (ngx_threads[i].state == NGX_THREAD_EXIT) {
|
|
|
1166 ngx_thread_join(ngx_threads[i].tid, NULL);
|
|
|
1167 ngx_threads[i].state = NGX_THREAD_DONE;
|
|
|
1168 }
|
|
|
1169 }
|
|
|
1170
|
|
|
1171 if (live == 0) {
|
|
|
1172 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
1173 "all worker threads are joined");
|
|
|
1174
|
|
|
1175 /* STUB */
|
|
|
1176 ngx_done_events(cycle);
|
|
|
1177 ngx_mutex_destroy(ngx_event_timer_mutex);
|
|
|
1178 ngx_mutex_destroy(ngx_posted_events_mutex);
|
|
|
1179
|
|
|
1180 return;
|
|
|
1181 }
|
|
|
1182
|
|
|
1183 ngx_sched_yield();
|
|
|
1184 }
|
|
|
1185 }
|
|
|
1186
|
|
|
1187
|
|
112
|
1188 static ngx_thread_value_t
|
|
50
|
1189 ngx_worker_thread_cycle(void *data)
|
|
0
|
1190 {
|
|
|
1191 ngx_thread_t *thr = data;
|
|
|
1192
|
|
|
1193 sigset_t set;
|
|
|
1194 ngx_err_t err;
|
|
|
1195 ngx_core_tls_t *tls;
|
|
|
1196 ngx_cycle_t *cycle;
|
|
|
1197
|
|
|
1198 cycle = (ngx_cycle_t *) ngx_cycle;
|
|
|
1199
|
|
|
1200 sigemptyset(&set);
|
|
|
1201 sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
|
|
|
1202 sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
|
|
|
1203 sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
|
|
|
1204
|
|
|
1205 err = ngx_thread_sigmask(SIG_BLOCK, &set, NULL);
|
|
|
1206 if (err) {
|
|
|
1207 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
1208 ngx_thread_sigmask_n " failed");
|
|
112
|
1209 return (ngx_thread_value_t) 1;
|
|
0
|
1210 }
|
|
|
1211
|
|
|
1212 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
1213 "thread " NGX_TID_T_FMT " started", ngx_thread_self());
|
|
0
|
1214
|
|
|
1215 ngx_setthrtitle("worker thread");
|
|
|
1216
|
|
50
|
1217 tls = ngx_calloc(sizeof(ngx_core_tls_t), cycle->log);
|
|
|
1218 if (tls == NULL) {
|
|
112
|
1219 return (ngx_thread_value_t) 1;
|
|
0
|
1220 }
|
|
|
1221
|
|
|
1222 err = ngx_thread_set_tls(ngx_core_tls_key, tls);
|
|
|
1223 if (err != 0) {
|
|
|
1224 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
1225 ngx_thread_set_tls_n " failed");
|
|
112
|
1226 return (ngx_thread_value_t) 1;
|
|
0
|
1227 }
|
|
|
1228
|
|
112
|
1229 ngx_mutex_lock(ngx_posted_events_mutex);
|
|
0
|
1230
|
|
|
1231 for ( ;; ) {
|
|
|
1232 thr->state = NGX_THREAD_FREE;
|
|
|
1233
|
|
|
1234 if (ngx_cond_wait(thr->cv, ngx_posted_events_mutex) == NGX_ERROR) {
|
|
112
|
1235 return (ngx_thread_value_t) 1;
|
|
0
|
1236 }
|
|
|
1237
|
|
|
1238 if (ngx_terminate) {
|
|
|
1239 thr->state = NGX_THREAD_EXIT;
|
|
|
1240
|
|
|
1241 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
|
1242
|
|
|
1243 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
1244 "thread " NGX_TID_T_FMT " is done",
|
|
|
1245 ngx_thread_self());
|
|
0
|
1246
|
|
112
|
1247 return (ngx_thread_value_t) 0;
|
|
0
|
1248 }
|
|
|
1249
|
|
|
1250 thr->state = NGX_THREAD_BUSY;
|
|
|
1251
|
|
|
1252 if (ngx_event_thread_process_posted(cycle) == NGX_ERROR) {
|
|
112
|
1253 return (ngx_thread_value_t) 1;
|
|
0
|
1254 }
|
|
|
1255
|
|
|
1256 if (ngx_event_thread_process_posted(cycle) == NGX_ERROR) {
|
|
112
|
1257 return (ngx_thread_value_t) 1;
|
|
0
|
1258 }
|
|
|
1259
|
|
|
1260 if (ngx_process_changes) {
|
|
|
1261 if (ngx_process_changes(cycle, 1) == NGX_ERROR) {
|
|
112
|
1262 return (ngx_thread_value_t) 1;
|
|
0
|
1263 }
|
|
|
1264 }
|
|
|
1265 }
|
|
|
1266 }
|
|
|
1267
|
|
|
1268 #endif
|
|
16
|
1269
|
|
|
1270
|
|
50
|
1271 static void
|
|
477
|
1272 ngx_cache_manager_process_cycle(ngx_cycle_t *cycle, void *data)
|
|
16
|
1273 {
|
|
525
|
1274 ngx_cache_manager_ctx_t *ctx = data;
|
|
|
1275
|
|
473
|
1276 void *ident[4];
|
|
|
1277 ngx_event_t ev;
|
|
|
1278
|
|
|
1279 cycle->connection_n = 512;
|
|
16
|
1280
|
|
22
|
1281 ngx_worker_process_init(cycle, 0);
|
|
16
|
1282
|
|
473
|
1283 ngx_close_listening_sockets(cycle);
|
|
16
|
1284
|
|
473
|
1285 ngx_memzero(&ev, sizeof(ngx_event_t));
|
|
525
|
1286 ev.handler = ctx->handler;
|
|
473
|
1287 ev.data = ident;
|
|
|
1288 ev.log = cycle->log;
|
|
|
1289 ident[3] = (void *) -1;
|
|
16
|
1290
|
|
473
|
1291 ngx_use_accept_mutex = 0;
|
|
|
1292
|
|
525
|
1293 ngx_setproctitle(ctx->name);
|
|
473
|
1294
|
|
525
|
1295 ngx_add_timer(&ev, ctx->delay);
|
|
16
|
1296
|
|
|
1297 for ( ;; ) {
|
|
|
1298
|
|
|
1299 if (ngx_terminate || ngx_quit) {
|
|
26
|
1300 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
16
|
1301 exit(0);
|
|
|
1302 }
|
|
|
1303
|
|
|
1304 if (ngx_reopen) {
|
|
|
1305 ngx_reopen = 0;
|
|
26
|
1306 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
|
16
|
1307 ngx_reopen_files(cycle, -1);
|
|
|
1308 }
|
|
|
1309
|
|
112
|
1310 ngx_process_events_and_timers(cycle);
|
|
16
|
1311 }
|
|
|
1312 }
|
|
50
|
1313
|
|
473
|
1314
|
|
|
1315 static void
|
|
477
|
1316 ngx_cache_manager_process_handler(ngx_event_t *ev)
|
|
473
|
1317 {
|
|
|
1318 time_t next, n;
|
|
|
1319 ngx_uint_t i;
|
|
|
1320 ngx_path_t **path;
|
|
|
1321
|
|
|
1322 next = 60 * 60;
|
|
|
1323
|
|
|
1324 path = ngx_cycle->pathes.elts;
|
|
|
1325 for (i = 0; i < ngx_cycle->pathes.nelts; i++) {
|
|
|
1326
|
|
477
|
1327 if (path[i]->manager) {
|
|
|
1328 n = path[i]->manager(path[i]->data);
|
|
473
|
1329
|
|
|
1330 next = (n <= next) ? n : next;
|
|
|
1331
|
|
|
1332 ngx_time_update(0, 0);
|
|
|
1333 }
|
|
|
1334 }
|
|
|
1335
|
|
|
1336 if (next == 0) {
|
|
|
1337 next = 1;
|
|
|
1338 }
|
|
|
1339
|
|
|
1340 ngx_add_timer(ev, next * 1000);
|
|
|
1341 }
|
|
525
|
1342
|
|
|
1343
|
|
|
1344 static void
|
|
|
1345 ngx_cache_loader_process_handler(ngx_event_t *ev)
|
|
|
1346 {
|
|
|
1347 ngx_uint_t i;
|
|
|
1348 ngx_path_t **path;
|
|
|
1349 ngx_cycle_t *cycle;
|
|
|
1350
|
|
|
1351 cycle = (ngx_cycle_t *) ngx_cycle;
|
|
|
1352
|
|
|
1353 path = cycle->pathes.elts;
|
|
|
1354 for (i = 0; i < cycle->pathes.nelts; i++) {
|
|
|
1355
|
|
|
1356 if (ngx_terminate || ngx_quit) {
|
|
|
1357 break;
|
|
|
1358 }
|
|
|
1359
|
|
|
1360 if (path[i]->loader) {
|
|
|
1361 path[i]->loader(path[i]->data);
|
|
|
1362 ngx_time_update(0, 0);
|
|
|
1363 }
|
|
|
1364 }
|
|
|
1365
|
|
|
1366 exit(0);
|
|
|
1367 }
|
