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0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10 #include <ngx_channel.h>
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11
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12
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13 static void ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t n,
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50
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14 ngx_int_t type);
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16
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15 static void ngx_start_garbage_collector(ngx_cycle_t *cycle, ngx_int_t type);
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0
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16 static void ngx_signal_worker_processes(ngx_cycle_t *cycle, int signo);
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340
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17 static ngx_uint_t ngx_reap_children(ngx_cycle_t *cycle);
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122
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18 static void ngx_master_process_exit(ngx_cycle_t *cycle);
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0
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19 static void ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data);
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22
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20 static void ngx_worker_process_init(ngx_cycle_t *cycle, ngx_uint_t priority);
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122
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21 static void ngx_worker_process_exit(ngx_cycle_t *cycle);
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0
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22 static void ngx_channel_handler(ngx_event_t *ev);
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23 #if (NGX_THREADS)
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24 static void ngx_wakeup_worker_threads(ngx_cycle_t *cycle);
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112
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25 static ngx_thread_value_t ngx_worker_thread_cycle(void *data);
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0
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26 #endif
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50
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27 #if 0
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16
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28 static void ngx_garbage_collector_cycle(ngx_cycle_t *cycle, void *data);
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50
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29 #endif
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0
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30
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31
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32 ngx_uint_t ngx_process;
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33 ngx_pid_t ngx_pid;
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34 ngx_uint_t ngx_threaded;
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35
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36 sig_atomic_t ngx_reap;
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37 sig_atomic_t ngx_sigio;
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38 sig_atomic_t ngx_terminate;
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39 sig_atomic_t ngx_quit;
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26
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40 sig_atomic_t ngx_debug_quit;
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0
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41 ngx_uint_t ngx_exiting;
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42 sig_atomic_t ngx_reconfigure;
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43 sig_atomic_t ngx_reopen;
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44
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45 sig_atomic_t ngx_change_binary;
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46 ngx_pid_t ngx_new_binary;
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47 ngx_uint_t ngx_inherited;
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48 ngx_uint_t ngx_daemonized;
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49
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50 sig_atomic_t ngx_noaccept;
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51 ngx_uint_t ngx_noaccepting;
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52 ngx_uint_t ngx_restart;
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53
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54
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55 #if (NGX_THREADS)
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56 volatile ngx_thread_t ngx_threads[NGX_MAX_THREADS];
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57 ngx_int_t ngx_threads_n;
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58 #endif
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59
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60
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126
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61 u_long cpu_affinity;
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62 static u_char master_process[] = "master process";
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0
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63
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64
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332
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65 static ngx_cycle_t ngx_exit_cycle;
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66 static ngx_log_t ngx_exit_log;
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67 static ngx_open_file_t ngx_exit_log_file;
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68
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69
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50
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70 void
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71 ngx_master_process_cycle(ngx_cycle_t *cycle)
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0
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72 {
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73 char *title;
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74 u_char *p;
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75 size_t size;
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76 ngx_int_t i;
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80
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77 ngx_uint_t n;
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0
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78 sigset_t set;
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79 struct itimerval itv;
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80 ngx_uint_t live;
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81 ngx_msec_t delay;
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80
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82 ngx_listening_t *ls;
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0
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83 ngx_core_conf_t *ccf;
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84
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85 sigemptyset(&set);
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86 sigaddset(&set, SIGCHLD);
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87 sigaddset(&set, SIGALRM);
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88 sigaddset(&set, SIGIO);
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89 sigaddset(&set, SIGINT);
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90 sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
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91 sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
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92 sigaddset(&set, ngx_signal_value(NGX_NOACCEPT_SIGNAL));
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93 sigaddset(&set, ngx_signal_value(NGX_TERMINATE_SIGNAL));
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94 sigaddset(&set, ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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95 sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
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96
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97 if (sigprocmask(SIG_BLOCK, &set, NULL) == -1) {
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98 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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99 "sigprocmask() failed");
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100 }
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101
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102 sigemptyset(&set);
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103
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104
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105 size = sizeof(master_process);
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106
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2
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107 for (i = 0; i < ngx_argc; i++) {
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108 size += ngx_strlen(ngx_argv[i]) + 1;
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0
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109 }
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110
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382
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111 title = ngx_pnalloc(cycle->pool, size);
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0
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112
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113 p = ngx_cpymem(title, master_process, sizeof(master_process) - 1);
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2
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114 for (i = 0; i < ngx_argc; i++) {
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115 *p++ = ' ';
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2
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116 p = ngx_cpystrn(p, (u_char *) ngx_argv[i], size);
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0
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117 }
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118
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119 ngx_setproctitle(title);
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120
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121
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122 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
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123
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124 ngx_start_worker_processes(cycle, ccf->worker_processes,
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125 NGX_PROCESS_RESPAWN);
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16
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126 ngx_start_garbage_collector(cycle, NGX_PROCESS_RESPAWN);
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0
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127
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128 ngx_new_binary = 0;
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129 delay = 0;
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130 live = 1;
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131
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132 for ( ;; ) {
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133 if (delay) {
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134 delay *= 2;
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135
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136 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
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137 "temination cycle: %d", delay);
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138
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139 itv.it_interval.tv_sec = 0;
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140 itv.it_interval.tv_usec = 0;
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141 itv.it_value.tv_sec = delay / 1000;
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142 itv.it_value.tv_usec = (delay % 1000 ) * 1000;
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143
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144 if (setitimer(ITIMER_REAL, &itv, NULL) == -1) {
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145 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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146 "setitimer() failed");
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147 }
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148 }
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149
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150 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "sigsuspend");
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151
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152 sigsuspend(&set);
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153
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112
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154 ngx_time_update(0, 0);
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0
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155
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156 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "wake up");
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157
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158 if (ngx_reap) {
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159 ngx_reap = 0;
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340
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160 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "reap children");
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0
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161
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340
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162 live = ngx_reap_children(cycle);
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0
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163 }
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164
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165 if (!live && (ngx_terminate || ngx_quit)) {
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122
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166 ngx_master_process_exit(cycle);
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0
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167 }
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168
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169 if (ngx_terminate) {
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170 if (delay == 0) {
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171 delay = 50;
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172 }
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173
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174 if (delay > 1000) {
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175 ngx_signal_worker_processes(cycle, SIGKILL);
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176 } else {
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177 ngx_signal_worker_processes(cycle,
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178 ngx_signal_value(NGX_TERMINATE_SIGNAL));
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179 }
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180
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181 continue;
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182 }
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183
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184 if (ngx_quit) {
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185 ngx_signal_worker_processes(cycle,
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186 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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80
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187
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188 ls = cycle->listening.elts;
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189 for (n = 0; n < cycle->listening.nelts; n++) {
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190 if (ngx_close_socket(ls[n].fd) == -1) {
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191 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_socket_errno,
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192 ngx_close_socket_n " %V failed",
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193 &ls[n].addr_text);
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194 }
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195 }
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196 cycle->listening.nelts = 0;
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197
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0
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198 continue;
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199 }
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200
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201 if (ngx_reconfigure) {
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202 ngx_reconfigure = 0;
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203
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204 if (ngx_new_binary) {
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205 ngx_start_worker_processes(cycle, ccf->worker_processes,
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206 NGX_PROCESS_RESPAWN);
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16
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207 ngx_start_garbage_collector(cycle, NGX_PROCESS_RESPAWN);
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0
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208 ngx_noaccepting = 0;
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209
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210 continue;
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211 }
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212
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26
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213 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
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0
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214
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215 cycle = ngx_init_cycle(cycle);
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216 if (cycle == NULL) {
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217 cycle = (ngx_cycle_t *) ngx_cycle;
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218 continue;
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219 }
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220
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221 ngx_cycle = cycle;
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222 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
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223 ngx_core_module);
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224 ngx_start_worker_processes(cycle, ccf->worker_processes,
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225 NGX_PROCESS_JUST_RESPAWN);
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16
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226 ngx_start_garbage_collector(cycle, NGX_PROCESS_JUST_RESPAWN);
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0
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227 live = 1;
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228 ngx_signal_worker_processes(cycle,
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229 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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230 }
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231
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232 if (ngx_restart) {
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233 ngx_restart = 0;
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234 ngx_start_worker_processes(cycle, ccf->worker_processes,
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235 NGX_PROCESS_RESPAWN);
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16
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236 ngx_start_garbage_collector(cycle, NGX_PROCESS_RESPAWN);
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0
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237 live = 1;
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238 }
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239
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240 if (ngx_reopen) {
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241 ngx_reopen = 0;
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26
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242 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
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0
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243 ngx_reopen_files(cycle, ccf->user);
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244 ngx_signal_worker_processes(cycle,
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245 ngx_signal_value(NGX_REOPEN_SIGNAL));
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246 }
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247
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248 if (ngx_change_binary) {
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249 ngx_change_binary = 0;
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26
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250 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "changing binary");
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2
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251 ngx_new_binary = ngx_exec_new_binary(cycle, ngx_argv);
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0
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252 }
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253
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254 if (ngx_noaccept) {
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255 ngx_noaccept = 0;
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256 ngx_noaccepting = 1;
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257 ngx_signal_worker_processes(cycle,
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258 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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259 }
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260 }
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261 }
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262
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263
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50
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264 void
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265 ngx_single_process_cycle(ngx_cycle_t *cycle)
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0
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266 {
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267 ngx_uint_t i;
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268
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269 ngx_init_temp_number();
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270
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271 for (i = 0; ngx_modules[i]; i++) {
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272 if (ngx_modules[i]->init_process) {
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273 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
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274 /* fatal */
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275 exit(2);
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276 }
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277 }
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278 }
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279
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280 for ( ;; ) {
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281 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
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282
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112
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283 ngx_process_events_and_timers(cycle);
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0
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284
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285 if (ngx_terminate || ngx_quit) {
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120
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286
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287 for (i = 0; ngx_modules[i]; i++) {
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288 if (ngx_modules[i]->exit_process) {
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289 ngx_modules[i]->exit_process(cycle);
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290 }
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291 }
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292
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122
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293 ngx_master_process_exit(cycle);
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0
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294 }
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295
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296 if (ngx_reconfigure) {
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297 ngx_reconfigure = 0;
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26
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298 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
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0
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299
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300 cycle = ngx_init_cycle(cycle);
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301 if (cycle == NULL) {
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302 cycle = (ngx_cycle_t *) ngx_cycle;
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303 continue;
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304 }
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305
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306 ngx_cycle = cycle;
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307 }
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308
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309 if (ngx_reopen) {
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310 ngx_reopen = 0;
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26
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311 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
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0
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312 ngx_reopen_files(cycle, (ngx_uid_t) -1);
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313 }
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314 }
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315 }
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316
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317
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50
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318 static void
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319 ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t n, ngx_int_t type)
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0
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320 {
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126
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321 ngx_int_t i, s;
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106
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322 ngx_channel_t ch;
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0
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323
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26
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324 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start worker processes");
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0
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325
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326 ch.command = NGX_CMD_OPEN_CHANNEL;
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327
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126
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328 for (i = 0; i < n; i++) {
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329
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330 cpu_affinity = ngx_get_cpu_affinity(i);
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331
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0
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332 ngx_spawn_process(cycle, ngx_worker_process_cycle, NULL,
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333 "worker process", type);
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334
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335 ch.pid = ngx_processes[ngx_process_slot].pid;
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336 ch.slot = ngx_process_slot;
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337 ch.fd = ngx_processes[ngx_process_slot].channel[0];
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338
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126
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339 for (s = 0; s < ngx_last_process; s++) {
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0
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340
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126
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341 if (s == ngx_process_slot
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342 || ngx_processes[s].pid == -1
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343 || ngx_processes[s].channel[0] == -1)
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0
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344 {
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345 continue;
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346 }
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347
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348 ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,
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10
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349 "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",
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350 ch.slot, ch.pid, ch.fd,
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126
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351 s, ngx_processes[s].pid,
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352 ngx_processes[s].channel[0]);
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0
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353
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354 /* TODO: NGX_AGAIN */
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355
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126
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356 ngx_write_channel(ngx_processes[s].channel[0],
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0
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357 &ch, sizeof(ngx_channel_t), cycle->log);
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358 }
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359 }
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360 }
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361
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362
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50
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363 static void
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364 ngx_start_garbage_collector(ngx_cycle_t *cycle, ngx_int_t type)
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16
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365 {
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50
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366 #if 0
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367 ngx_int_t i;
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368 ngx_channel_t ch;
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16
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369
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26
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370 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start garbage collector");
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16
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371
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372 ch.command = NGX_CMD_OPEN_CHANNEL;
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373
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374 ngx_spawn_process(cycle, ngx_garbage_collector_cycle, NULL,
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375 "garbage collector", type);
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376
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377 ch.pid = ngx_processes[ngx_process_slot].pid;
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378 ch.slot = ngx_process_slot;
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379 ch.fd = ngx_processes[ngx_process_slot].channel[0];
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380
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|
|
381 for (i = 0; i < ngx_last_process; i++) {
|
|
|
382
|
|
|
383 if (i == ngx_process_slot
|
|
|
384 || ngx_processes[i].pid == -1
|
|
|
385 || ngx_processes[i].channel[0] == -1)
|
|
|
386 {
|
|
|
387 continue;
|
|
|
388 }
|
|
|
389
|
|
|
390 ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
391 "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",
|
|
|
392 ch.slot, ch.pid, ch.fd,
|
|
|
393 i, ngx_processes[i].pid,
|
|
|
394 ngx_processes[i].channel[0]);
|
|
|
395
|
|
|
396 /* TODO: NGX_AGAIN */
|
|
|
397
|
|
|
398 ngx_write_channel(ngx_processes[i].channel[0],
|
|
|
399 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
|
400 }
|
|
50
|
401 #endif
|
|
16
|
402 }
|
|
|
403
|
|
|
404
|
|
50
|
405 static void
|
|
|
406 ngx_signal_worker_processes(ngx_cycle_t *cycle, int signo)
|
|
0
|
407 {
|
|
|
408 ngx_int_t i;
|
|
|
409 ngx_err_t err;
|
|
|
410 ngx_channel_t ch;
|
|
|
411
|
|
342
|
412 #if (NGX_BROKEN_SCM_RIGHTS)
|
|
|
413
|
|
|
414 ch.command = 0;
|
|
|
415
|
|
|
416 #else
|
|
|
417
|
|
0
|
418 switch (signo) {
|
|
|
419
|
|
|
420 case ngx_signal_value(NGX_SHUTDOWN_SIGNAL):
|
|
|
421 ch.command = NGX_CMD_QUIT;
|
|
|
422 break;
|
|
|
423
|
|
|
424 case ngx_signal_value(NGX_TERMINATE_SIGNAL):
|
|
|
425 ch.command = NGX_CMD_TERMINATE;
|
|
|
426 break;
|
|
|
427
|
|
|
428 case ngx_signal_value(NGX_REOPEN_SIGNAL):
|
|
|
429 ch.command = NGX_CMD_REOPEN;
|
|
|
430 break;
|
|
|
431
|
|
|
432 default:
|
|
|
433 ch.command = 0;
|
|
|
434 }
|
|
|
435
|
|
342
|
436 #endif
|
|
|
437
|
|
0
|
438 ch.fd = -1;
|
|
|
439
|
|
|
440
|
|
|
441 for (i = 0; i < ngx_last_process; i++) {
|
|
|
442
|
|
|
443 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
444 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
|
0
|
445 i,
|
|
|
446 ngx_processes[i].pid,
|
|
|
447 ngx_processes[i].exiting,
|
|
|
448 ngx_processes[i].exited,
|
|
|
449 ngx_processes[i].detached,
|
|
|
450 ngx_processes[i].respawn,
|
|
|
451 ngx_processes[i].just_respawn);
|
|
|
452
|
|
|
453 if (ngx_processes[i].detached || ngx_processes[i].pid == -1) {
|
|
|
454 continue;
|
|
|
455 }
|
|
|
456
|
|
|
457 if (ngx_processes[i].just_respawn) {
|
|
|
458 ngx_processes[i].just_respawn = 0;
|
|
|
459 continue;
|
|
|
460 }
|
|
|
461
|
|
|
462 if (ngx_processes[i].exiting
|
|
|
463 && signo == ngx_signal_value(NGX_SHUTDOWN_SIGNAL))
|
|
|
464 {
|
|
|
465 continue;
|
|
|
466 }
|
|
|
467
|
|
|
468 if (ch.command) {
|
|
|
469 if (ngx_write_channel(ngx_processes[i].channel[0],
|
|
290
|
470 &ch, sizeof(ngx_channel_t), cycle->log)
|
|
|
471 == NGX_OK)
|
|
0
|
472 {
|
|
|
473 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
|
474 ngx_processes[i].exiting = 1;
|
|
|
475 }
|
|
|
476
|
|
|
477 continue;
|
|
|
478 }
|
|
|
479 }
|
|
|
480
|
|
|
481 ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
482 "kill (%P, %d)" , ngx_processes[i].pid, signo);
|
|
0
|
483
|
|
|
484 if (kill(ngx_processes[i].pid, signo) == -1) {
|
|
|
485 err = ngx_errno;
|
|
|
486 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
10
|
487 "kill(%P, %d) failed",
|
|
0
|
488 ngx_processes[i].pid, signo);
|
|
|
489
|
|
|
490 if (err == NGX_ESRCH) {
|
|
|
491 ngx_processes[i].exited = 1;
|
|
|
492 ngx_processes[i].exiting = 0;
|
|
|
493 ngx_reap = 1;
|
|
|
494 }
|
|
|
495
|
|
|
496 continue;
|
|
|
497 }
|
|
|
498
|
|
|
499 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
|
500 ngx_processes[i].exiting = 1;
|
|
|
501 }
|
|
|
502 }
|
|
|
503 }
|
|
|
504
|
|
|
505
|
|
50
|
506 static ngx_uint_t
|
|
340
|
507 ngx_reap_children(ngx_cycle_t *cycle)
|
|
0
|
508 {
|
|
92
|
509 ngx_int_t i, n;
|
|
|
510 ngx_uint_t live;
|
|
|
511 ngx_channel_t ch;
|
|
|
512 ngx_core_conf_t *ccf;
|
|
0
|
513
|
|
|
514 ch.command = NGX_CMD_CLOSE_CHANNEL;
|
|
|
515 ch.fd = -1;
|
|
|
516
|
|
|
517 live = 0;
|
|
|
518 for (i = 0; i < ngx_last_process; i++) {
|
|
|
519
|
|
|
520 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
521 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
|
0
|
522 i,
|
|
|
523 ngx_processes[i].pid,
|
|
|
524 ngx_processes[i].exiting,
|
|
|
525 ngx_processes[i].exited,
|
|
|
526 ngx_processes[i].detached,
|
|
|
527 ngx_processes[i].respawn,
|
|
|
528 ngx_processes[i].just_respawn);
|
|
|
529
|
|
|
530 if (ngx_processes[i].pid == -1) {
|
|
|
531 continue;
|
|
|
532 }
|
|
|
533
|
|
|
534 if (ngx_processes[i].exited) {
|
|
|
535
|
|
|
536 if (!ngx_processes[i].detached) {
|
|
|
537 ngx_close_channel(ngx_processes[i].channel, cycle->log);
|
|
|
538
|
|
|
539 ngx_processes[i].channel[0] = -1;
|
|
|
540 ngx_processes[i].channel[1] = -1;
|
|
|
541
|
|
|
542 ch.pid = ngx_processes[i].pid;
|
|
|
543 ch.slot = i;
|
|
|
544
|
|
|
545 for (n = 0; n < ngx_last_process; n++) {
|
|
|
546 if (ngx_processes[n].exited
|
|
|
547 || ngx_processes[n].pid == -1
|
|
|
548 || ngx_processes[n].channel[0] == -1)
|
|
|
549 {
|
|
|
550 continue;
|
|
|
551 }
|
|
|
552
|
|
|
553 ngx_log_debug3(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
554 "pass close channel s:%i pid:%P to:%P",
|
|
|
555 ch.slot, ch.pid, ngx_processes[n].pid);
|
|
0
|
556
|
|
|
557 /* TODO: NGX_AGAIN */
|
|
|
558
|
|
|
559 ngx_write_channel(ngx_processes[n].channel[0],
|
|
|
560 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
|
561 }
|
|
|
562 }
|
|
|
563
|
|
|
564 if (ngx_processes[i].respawn
|
|
|
565 && !ngx_processes[i].exiting
|
|
|
566 && !ngx_terminate
|
|
|
567 && !ngx_quit)
|
|
|
568 {
|
|
|
569 if (ngx_spawn_process(cycle, ngx_processes[i].proc,
|
|
|
570 ngx_processes[i].data,
|
|
|
571 ngx_processes[i].name, i)
|
|
92
|
572 == NGX_INVALID_PID)
|
|
0
|
573 {
|
|
|
574 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
575 "can not respawn %s", ngx_processes[i].name);
|
|
|
576 continue;
|
|
|
577 }
|
|
|
578
|
|
22
|
579
|
|
|
580 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
|
581 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
|
582 ch.slot = ngx_process_slot;
|
|
|
583 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
|
584
|
|
|
585 for (n = 0; n < ngx_last_process; n++) {
|
|
|
586
|
|
|
587 if (n == ngx_process_slot
|
|
|
588 || ngx_processes[n].pid == -1
|
|
|
589 || ngx_processes[n].channel[0] == -1)
|
|
|
590 {
|
|
|
591 continue;
|
|
|
592 }
|
|
|
593
|
|
|
594 ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
595 "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",
|
|
|
596 ch.slot, ch.pid, ch.fd,
|
|
|
597 n, ngx_processes[n].pid,
|
|
|
598 ngx_processes[n].channel[0]);
|
|
|
599
|
|
|
600 /* TODO: NGX_AGAIN */
|
|
|
601
|
|
|
602 ngx_write_channel(ngx_processes[n].channel[0],
|
|
|
603 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
|
604 }
|
|
|
605
|
|
0
|
606 live = 1;
|
|
|
607
|
|
|
608 continue;
|
|
|
609 }
|
|
|
610
|
|
|
611 if (ngx_processes[i].pid == ngx_new_binary) {
|
|
92
|
612
|
|
|
613 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
|
|
|
614 ngx_core_module);
|
|
|
615
|
|
|
616 if (ngx_rename_file((char *) ccf->oldpid.data,
|
|
|
617 (char *) ccf->pid.data)
|
|
|
618 != NGX_OK)
|
|
|
619 {
|
|
|
620 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
621 ngx_rename_file_n " %s back to %s failed "
|
|
|
622 "after the new binary process \"%s\" exited",
|
|
|
623 ccf->oldpid.data, ccf->pid.data, ngx_argv[0]);
|
|
|
624 }
|
|
|
625
|
|
0
|
626 ngx_new_binary = 0;
|
|
|
627 if (ngx_noaccepting) {
|
|
|
628 ngx_restart = 1;
|
|
|
629 ngx_noaccepting = 0;
|
|
|
630 }
|
|
|
631 }
|
|
|
632
|
|
|
633 if (i == ngx_last_process - 1) {
|
|
|
634 ngx_last_process--;
|
|
|
635
|
|
|
636 } else {
|
|
|
637 ngx_processes[i].pid = -1;
|
|
|
638 }
|
|
|
639
|
|
|
640 } else if (ngx_processes[i].exiting || !ngx_processes[i].detached) {
|
|
|
641 live = 1;
|
|
|
642 }
|
|
|
643 }
|
|
|
644
|
|
|
645 return live;
|
|
|
646 }
|
|
|
647
|
|
|
648
|
|
50
|
649 static void
|
|
122
|
650 ngx_master_process_exit(ngx_cycle_t *cycle)
|
|
0
|
651 {
|
|
120
|
652 ngx_uint_t i;
|
|
|
653
|
|
0
|
654 ngx_delete_pidfile(cycle);
|
|
|
655
|
|
26
|
656 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit");
|
|
0
|
657
|
|
120
|
658 for (i = 0; ngx_modules[i]; i++) {
|
|
|
659 if (ngx_modules[i]->exit_master) {
|
|
|
660 ngx_modules[i]->exit_master(cycle);
|
|
|
661 }
|
|
|
662 }
|
|
|
663
|
|
54
|
664 /*
|
|
332
|
665 * Copy ngx_cycle->log related data to the special static exit cycle,
|
|
|
666 * log, and log file structures enough to allow a signal handler to log.
|
|
|
667 * The handler may be called when standard ngx_cycle->log allocated from
|
|
|
668 * ngx_cycle->pool is already destroyed.
|
|
54
|
669 */
|
|
|
670
|
|
332
|
671 ngx_exit_log_file.fd = ngx_cycle->log->file->fd;
|
|
|
672
|
|
|
673 ngx_exit_log = *ngx_cycle->log;
|
|
|
674 ngx_exit_log.file = &ngx_exit_log_file;
|
|
|
675
|
|
|
676 ngx_exit_cycle.log = &ngx_exit_log;
|
|
|
677 ngx_cycle = &ngx_exit_cycle;
|
|
|
678
|
|
0
|
679 ngx_destroy_pool(cycle->pool);
|
|
|
680
|
|
|
681 exit(0);
|
|
|
682 }
|
|
|
683
|
|
|
684
|
|
50
|
685 static void
|
|
|
686 ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data)
|
|
0
|
687 {
|
|
290
|
688 ngx_uint_t i;
|
|
|
689 ngx_connection_t *c;
|
|
18
|
690
|
|
22
|
691 ngx_worker_process_init(cycle, 1);
|
|
0
|
692
|
|
|
693 ngx_setproctitle("worker process");
|
|
|
694
|
|
|
695 #if (NGX_THREADS)
|
|
356
|
696 {
|
|
|
697 ngx_int_t n;
|
|
|
698 ngx_err_t err;
|
|
|
699 ngx_core_conf_t *ccf;
|
|
0
|
700
|
|
18
|
701 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
702
|
|
0
|
703 if (ngx_threads_n) {
|
|
290
|
704 if (ngx_init_threads(ngx_threads_n, ccf->thread_stack_size, cycle)
|
|
|
705 == NGX_ERROR)
|
|
0
|
706 {
|
|
|
707 /* fatal */
|
|
|
708 exit(2);
|
|
|
709 }
|
|
|
710
|
|
|
711 err = ngx_thread_key_create(&ngx_core_tls_key);
|
|
|
712 if (err != 0) {
|
|
|
713 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
714 ngx_thread_key_create_n " failed");
|
|
|
715 /* fatal */
|
|
|
716 exit(2);
|
|
|
717 }
|
|
|
718
|
|
|
719 for (n = 0; n < ngx_threads_n; n++) {
|
|
|
720
|
|
50
|
721 ngx_threads[n].cv = ngx_cond_init(cycle->log);
|
|
|
722
|
|
|
723 if (ngx_threads[n].cv == NULL) {
|
|
0
|
724 /* fatal */
|
|
|
725 exit(2);
|
|
|
726 }
|
|
|
727
|
|
|
728 if (ngx_create_thread((ngx_tid_t *) &ngx_threads[n].tid,
|
|
|
729 ngx_worker_thread_cycle,
|
|
290
|
730 (void *) &ngx_threads[n], cycle->log)
|
|
|
731 != 0)
|
|
0
|
732 {
|
|
|
733 /* fatal */
|
|
|
734 exit(2);
|
|
|
735 }
|
|
|
736 }
|
|
|
737 }
|
|
356
|
738 }
|
|
0
|
739 #endif
|
|
|
740
|
|
|
741 for ( ;; ) {
|
|
290
|
742
|
|
|
743 if (ngx_exiting) {
|
|
|
744
|
|
|
745 c = cycle->connections;
|
|
|
746
|
|
|
747 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
748
|
|
|
749 /* THREAD: lock */
|
|
0
|
750
|
|
290
|
751 if (c[i].fd != -1 && c[i].idle) {
|
|
|
752 c[i].close = 1;
|
|
|
753 c[i].read->handler(c[i].read);
|
|
|
754 }
|
|
|
755 }
|
|
|
756
|
|
|
757 if (ngx_event_timer_rbtree.root == ngx_event_timer_rbtree.sentinel)
|
|
|
758 {
|
|
|
759 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
|
760
|
|
|
761 ngx_worker_process_exit(cycle);
|
|
|
762 }
|
|
0
|
763 }
|
|
|
764
|
|
|
765 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
|
|
|
766
|
|
112
|
767 ngx_process_events_and_timers(cycle);
|
|
0
|
768
|
|
|
769 if (ngx_terminate) {
|
|
26
|
770 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
0
|
771
|
|
122
|
772 ngx_worker_process_exit(cycle);
|
|
0
|
773 }
|
|
|
774
|
|
|
775 if (ngx_quit) {
|
|
|
776 ngx_quit = 0;
|
|
26
|
777 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
0
|
778 "gracefully shutting down");
|
|
|
779 ngx_setproctitle("worker process is shutting down");
|
|
|
780
|
|
|
781 if (!ngx_exiting) {
|
|
|
782 ngx_close_listening_sockets(cycle);
|
|
|
783 ngx_exiting = 1;
|
|
|
784 }
|
|
|
785 }
|
|
|
786
|
|
|
787 if (ngx_reopen) {
|
|
|
788 ngx_reopen = 0;
|
|
26
|
789 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
|
0
|
790 ngx_reopen_files(cycle, -1);
|
|
|
791 }
|
|
|
792 }
|
|
|
793 }
|
|
|
794
|
|
|
795
|
|
50
|
796 static void
|
|
|
797 ngx_worker_process_init(ngx_cycle_t *cycle, ngx_uint_t priority)
|
|
16
|
798 {
|
|
278
|
799 sigset_t set;
|
|
|
800 ngx_int_t n;
|
|
|
801 ngx_uint_t i;
|
|
|
802 struct rlimit rlmt;
|
|
|
803 ngx_core_conf_t *ccf;
|
|
|
804 ngx_listening_t *ls;
|
|
16
|
805
|
|
|
806 ngx_process = NGX_PROCESS_WORKER;
|
|
|
807
|
|
278
|
808 if (ngx_set_environment(cycle, NULL) == NULL) {
|
|
|
809 /* fatal */
|
|
|
810 exit(2);
|
|
|
811 }
|
|
|
812
|
|
16
|
813 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
814
|
|
328
|
815 if (priority && ccf->priority != 0) {
|
|
|
816 if (setpriority(PRIO_PROCESS, 0, ccf->priority) == -1) {
|
|
|
817 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
818 "setpriority(%d) failed", ccf->priority);
|
|
22
|
819 }
|
|
328
|
820 }
|
|
22
|
821
|
|
328
|
822 if (ccf->rlimit_nofile != NGX_CONF_UNSET) {
|
|
|
823 rlmt.rlim_cur = (rlim_t) ccf->rlimit_nofile;
|
|
|
824 rlmt.rlim_max = (rlim_t) ccf->rlimit_nofile;
|
|
92
|
825
|
|
328
|
826 if (setrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
|
|
|
827 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
828 "setrlimit(RLIMIT_NOFILE, %i) failed",
|
|
|
829 ccf->rlimit_nofile);
|
|
92
|
830 }
|
|
328
|
831 }
|
|
92
|
832
|
|
328
|
833 if (ccf->rlimit_core != NGX_CONF_UNSET_SIZE) {
|
|
|
834 rlmt.rlim_cur = (rlim_t) ccf->rlimit_core;
|
|
|
835 rlmt.rlim_max = (rlim_t) ccf->rlimit_core;
|
|
138
|
836
|
|
328
|
837 if (setrlimit(RLIMIT_CORE, &rlmt) == -1) {
|
|
|
838 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
839 "setrlimit(RLIMIT_CORE, %i) failed",
|
|
|
840 ccf->rlimit_core);
|
|
138
|
841 }
|
|
328
|
842 }
|
|
138
|
843
|
|
92
|
844 #ifdef RLIMIT_SIGPENDING
|
|
328
|
845 if (ccf->rlimit_sigpending != NGX_CONF_UNSET) {
|
|
|
846 rlmt.rlim_cur = (rlim_t) ccf->rlimit_sigpending;
|
|
|
847 rlmt.rlim_max = (rlim_t) ccf->rlimit_sigpending;
|
|
92
|
848
|
|
328
|
849 if (setrlimit(RLIMIT_SIGPENDING, &rlmt) == -1) {
|
|
|
850 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
851 "setrlimit(RLIMIT_SIGPENDING, %i) failed",
|
|
|
852 ccf->rlimit_sigpending);
|
|
92
|
853 }
|
|
328
|
854 }
|
|
92
|
855 #endif
|
|
|
856
|
|
328
|
857 if (geteuid() == 0) {
|
|
16
|
858 if (setgid(ccf->group) == -1) {
|
|
|
859 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
860 "setgid(%d) failed", ccf->group);
|
|
|
861 /* fatal */
|
|
|
862 exit(2);
|
|
|
863 }
|
|
|
864
|
|
22
|
865 if (initgroups(ccf->username, ccf->group) == -1) {
|
|
|
866 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
867 "initgroups(%s, %d) failed",
|
|
|
868 ccf->username, ccf->group);
|
|
|
869 }
|
|
|
870
|
|
16
|
871 if (setuid(ccf->user) == -1) {
|
|
|
872 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
873 "setuid(%d) failed", ccf->user);
|
|
|
874 /* fatal */
|
|
|
875 exit(2);
|
|
|
876 }
|
|
|
877 }
|
|
|
878
|
|
126
|
879 #if (NGX_HAVE_SCHED_SETAFFINITY)
|
|
|
880
|
|
|
881 if (cpu_affinity) {
|
|
|
882 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
|
883 "sched_setaffinity(0x%08Xl)", cpu_affinity);
|
|
|
884
|
|
|
885 if (sched_setaffinity(0, 32, (cpu_set_t *) &cpu_affinity) == -1) {
|
|
|
886 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
887 "sched_setaffinity(0x%08Xl) failed", cpu_affinity);
|
|
|
888 }
|
|
|
889 }
|
|
|
890
|
|
|
891 #endif
|
|
|
892
|
|
16
|
893 #if (NGX_HAVE_PR_SET_DUMPABLE)
|
|
|
894
|
|
|
895 /* allow coredump after setuid() in Linux 2.4.x */
|
|
|
896
|
|
|
897 if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1) {
|
|
|
898 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
899 "prctl(PR_SET_DUMPABLE) failed");
|
|
|
900 }
|
|
|
901
|
|
|
902 #endif
|
|
|
903
|
|
70
|
904 if (ccf->working_directory.len) {
|
|
72
|
905 if (chdir((char *) ccf->working_directory.data) == -1) {
|
|
70
|
906 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
907 "chdir(\"%s\") failed", ccf->working_directory.data);
|
|
|
908 /* fatal */
|
|
|
909 exit(2);
|
|
|
910 }
|
|
|
911 }
|
|
|
912
|
|
16
|
913 sigemptyset(&set);
|
|
|
914
|
|
|
915 if (sigprocmask(SIG_SETMASK, &set, NULL) == -1) {
|
|
|
916 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
917 "sigprocmask() failed");
|
|
|
918 }
|
|
|
919
|
|
|
920 ngx_init_temp_number();
|
|
|
921
|
|
|
922 /*
|
|
|
923 * disable deleting previous events for the listening sockets because
|
|
|
924 * in the worker processes there are no events at all at this point
|
|
126
|
925 */
|
|
16
|
926 ls = cycle->listening.elts;
|
|
|
927 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
92
|
928 ls[i].previous = NULL;
|
|
16
|
929 }
|
|
|
930
|
|
|
931 for (i = 0; ngx_modules[i]; i++) {
|
|
|
932 if (ngx_modules[i]->init_process) {
|
|
|
933 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
|
|
|
934 /* fatal */
|
|
|
935 exit(2);
|
|
|
936 }
|
|
|
937 }
|
|
|
938 }
|
|
|
939
|
|
|
940 for (n = 0; n < ngx_last_process; n++) {
|
|
|
941
|
|
|
942 if (ngx_processes[n].pid == -1) {
|
|
|
943 continue;
|
|
|
944 }
|
|
|
945
|
|
|
946 if (n == ngx_process_slot) {
|
|
|
947 continue;
|
|
|
948 }
|
|
|
949
|
|
|
950 if (ngx_processes[n].channel[1] == -1) {
|
|
|
951 continue;
|
|
|
952 }
|
|
|
953
|
|
|
954 if (close(ngx_processes[n].channel[1]) == -1) {
|
|
|
955 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
956 "close() channel failed");
|
|
|
957 }
|
|
|
958 }
|
|
|
959
|
|
|
960 if (close(ngx_processes[ngx_process_slot].channel[0]) == -1) {
|
|
|
961 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
962 "close() channel failed");
|
|
|
963 }
|
|
|
964
|
|
|
965 #if 0
|
|
|
966 ngx_last_process = 0;
|
|
|
967 #endif
|
|
|
968
|
|
|
969 if (ngx_add_channel_event(cycle, ngx_channel, NGX_READ_EVENT,
|
|
290
|
970 ngx_channel_handler)
|
|
|
971 == NGX_ERROR)
|
|
16
|
972 {
|
|
|
973 /* fatal */
|
|
|
974 exit(2);
|
|
|
975 }
|
|
|
976 }
|
|
|
977
|
|
|
978
|
|
50
|
979 static void
|
|
122
|
980 ngx_worker_process_exit(ngx_cycle_t *cycle)
|
|
|
981 {
|
|
|
982 ngx_uint_t i;
|
|
|
983 ngx_connection_t *c;
|
|
|
984
|
|
|
985 #if (NGX_THREADS)
|
|
|
986 ngx_terminate = 1;
|
|
|
987
|
|
|
988 ngx_wakeup_worker_threads(cycle);
|
|
|
989 #endif
|
|
|
990
|
|
|
991 for (i = 0; ngx_modules[i]; i++) {
|
|
|
992 if (ngx_modules[i]->exit_process) {
|
|
|
993 ngx_modules[i]->exit_process(cycle);
|
|
|
994 }
|
|
|
995 }
|
|
|
996
|
|
366
|
997 if (ngx_exiting) {
|
|
136
|
998 c = cycle->connections;
|
|
|
999 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
1000 if (c[i].fd != -1
|
|
|
1001 && c[i].read
|
|
|
1002 && !c[i].read->accept
|
|
366
|
1003 && !c[i].read->channel
|
|
|
1004 && !c[i].read->resolver)
|
|
136
|
1005 {
|
|
|
1006 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
452
|
1007 "open socket #%d left in connection %ui%s",
|
|
366
|
1008 c[i].fd, i, ngx_debug_quit ? ", aborting" : "");
|
|
136
|
1009 ngx_debug_point();
|
|
|
1010 }
|
|
122
|
1011 }
|
|
|
1012
|
|
136
|
1013 if (ngx_debug_quit) {
|
|
|
1014 ngx_debug_point();
|
|
|
1015 }
|
|
122
|
1016 }
|
|
|
1017
|
|
|
1018 /*
|
|
332
|
1019 * Copy ngx_cycle->log related data to the special static exit cycle,
|
|
|
1020 * log, and log file structures enough to allow a signal handler to log.
|
|
|
1021 * The handler may be called when standard ngx_cycle->log allocated from
|
|
|
1022 * ngx_cycle->pool is already destroyed.
|
|
122
|
1023 */
|
|
|
1024
|
|
332
|
1025 ngx_exit_log_file.fd = ngx_cycle->log->file->fd;
|
|
|
1026
|
|
|
1027 ngx_exit_log = *ngx_cycle->log;
|
|
|
1028 ngx_exit_log.file = &ngx_exit_log_file;
|
|
|
1029
|
|
|
1030 ngx_exit_cycle.log = &ngx_exit_log;
|
|
|
1031 ngx_cycle = &ngx_exit_cycle;
|
|
|
1032
|
|
122
|
1033 ngx_destroy_pool(cycle->pool);
|
|
332
|
1034
|
|
|
1035 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, "exit");
|
|
122
|
1036
|
|
|
1037 exit(0);
|
|
|
1038 }
|
|
|
1039
|
|
|
1040
|
|
|
1041 static void
|
|
50
|
1042 ngx_channel_handler(ngx_event_t *ev)
|
|
0
|
1043 {
|
|
|
1044 ngx_int_t n;
|
|
|
1045 ngx_channel_t ch;
|
|
|
1046 ngx_connection_t *c;
|
|
|
1047
|
|
16
|
1048 if (ev->timedout) {
|
|
|
1049 ev->timedout = 0;
|
|
|
1050 return;
|
|
|
1051 }
|
|
|
1052
|
|
0
|
1053 c = ev->data;
|
|
|
1054
|
|
|
1055 ngx_log_debug0(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel handler");
|
|
|
1056
|
|
378
|
1057 for ( ;; ) {
|
|
0
|
1058
|
|
378
|
1059 n = ngx_read_channel(c->fd, &ch, sizeof(ngx_channel_t), ev->log);
|
|
|
1060
|
|
|
1061 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel: %i", n);
|
|
0
|
1062
|
|
378
|
1063 if (n == NGX_ERROR) {
|
|
366
|
1064
|
|
378
|
1065 if (ngx_event_flags & NGX_USE_EPOLL_EVENT) {
|
|
|
1066 ngx_del_conn(c, 0);
|
|
|
1067 }
|
|
|
1068
|
|
|
1069 ngx_close_connection(c);
|
|
|
1070 return;
|
|
366
|
1071 }
|
|
|
1072
|
|
378
|
1073 if (ngx_event_flags & NGX_USE_EVENTPORT_EVENT) {
|
|
|
1074 if (ngx_add_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
1075 return;
|
|
|
1076 }
|
|
|
1077 }
|
|
10
|
1078
|
|
378
|
1079 if (n == NGX_AGAIN) {
|
|
290
|
1080 return;
|
|
|
1081 }
|
|
378
|
1082
|
|
|
1083 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1084 "channel command: %d", ch.command);
|
|
290
|
1085
|
|
378
|
1086 switch (ch.command) {
|
|
0
|
1087
|
|
378
|
1088 case NGX_CMD_QUIT:
|
|
|
1089 ngx_quit = 1;
|
|
|
1090 break;
|
|
0
|
1091
|
|
378
|
1092 case NGX_CMD_TERMINATE:
|
|
|
1093 ngx_terminate = 1;
|
|
|
1094 break;
|
|
0
|
1095
|
|
378
|
1096 case NGX_CMD_REOPEN:
|
|
|
1097 ngx_reopen = 1;
|
|
|
1098 break;
|
|
0
|
1099
|
|
378
|
1100 case NGX_CMD_OPEN_CHANNEL:
|
|
0
|
1101
|
|
378
|
1102 ngx_log_debug3(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1103 "get channel s:%i pid:%P fd:%d",
|
|
|
1104 ch.slot, ch.pid, ch.fd);
|
|
0
|
1105
|
|
378
|
1106 ngx_processes[ch.slot].pid = ch.pid;
|
|
|
1107 ngx_processes[ch.slot].channel[0] = ch.fd;
|
|
|
1108 break;
|
|
0
|
1109
|
|
378
|
1110 case NGX_CMD_CLOSE_CHANNEL:
|
|
0
|
1111
|
|
378
|
1112 ngx_log_debug4(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1113 "close channel s:%i pid:%P our:%P fd:%d",
|
|
|
1114 ch.slot, ch.pid, ngx_processes[ch.slot].pid,
|
|
|
1115 ngx_processes[ch.slot].channel[0]);
|
|
0
|
1116
|
|
378
|
1117 if (close(ngx_processes[ch.slot].channel[0]) == -1) {
|
|
|
1118 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
|
|
|
1119 "close() channel failed");
|
|
|
1120 }
|
|
|
1121
|
|
|
1122 ngx_processes[ch.slot].channel[0] = -1;
|
|
|
1123 break;
|
|
0
|
1124 }
|
|
|
1125 }
|
|
|
1126 }
|
|
|
1127
|
|
|
1128
|
|
|
1129 #if (NGX_THREADS)
|
|
|
1130
|
|
50
|
1131 static void
|
|
|
1132 ngx_wakeup_worker_threads(ngx_cycle_t *cycle)
|
|
0
|
1133 {
|
|
|
1134 ngx_int_t i;
|
|
|
1135 ngx_uint_t live;
|
|
|
1136
|
|
|
1137 for ( ;; ) {
|
|
|
1138
|
|
|
1139 live = 0;
|
|
|
1140
|
|
|
1141 for (i = 0; i < ngx_threads_n; i++) {
|
|
|
1142 if (ngx_threads[i].state < NGX_THREAD_EXIT) {
|
|
18
|
1143 if (ngx_cond_signal(ngx_threads[i].cv) == NGX_ERROR) {
|
|
|
1144 ngx_threads[i].state = NGX_THREAD_DONE;
|
|
0
|
1145
|
|
|
1146 } else {
|
|
|
1147 live = 1;
|
|
|
1148 }
|
|
|
1149 }
|
|
|
1150
|
|
|
1151 if (ngx_threads[i].state == NGX_THREAD_EXIT) {
|
|
|
1152 ngx_thread_join(ngx_threads[i].tid, NULL);
|
|
|
1153 ngx_threads[i].state = NGX_THREAD_DONE;
|
|
|
1154 }
|
|
|
1155 }
|
|
|
1156
|
|
|
1157 if (live == 0) {
|
|
|
1158 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
1159 "all worker threads are joined");
|
|
|
1160
|
|
|
1161 /* STUB */
|
|
|
1162 ngx_done_events(cycle);
|
|
|
1163 ngx_mutex_destroy(ngx_event_timer_mutex);
|
|
|
1164 ngx_mutex_destroy(ngx_posted_events_mutex);
|
|
|
1165
|
|
|
1166 return;
|
|
|
1167 }
|
|
|
1168
|
|
|
1169 ngx_sched_yield();
|
|
|
1170 }
|
|
|
1171 }
|
|
|
1172
|
|
|
1173
|
|
112
|
1174 static ngx_thread_value_t
|
|
50
|
1175 ngx_worker_thread_cycle(void *data)
|
|
0
|
1176 {
|
|
|
1177 ngx_thread_t *thr = data;
|
|
|
1178
|
|
|
1179 sigset_t set;
|
|
|
1180 ngx_err_t err;
|
|
|
1181 ngx_core_tls_t *tls;
|
|
|
1182 ngx_cycle_t *cycle;
|
|
|
1183
|
|
|
1184 cycle = (ngx_cycle_t *) ngx_cycle;
|
|
|
1185
|
|
|
1186 sigemptyset(&set);
|
|
|
1187 sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
|
|
|
1188 sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
|
|
|
1189 sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
|
|
|
1190
|
|
|
1191 err = ngx_thread_sigmask(SIG_BLOCK, &set, NULL);
|
|
|
1192 if (err) {
|
|
|
1193 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
1194 ngx_thread_sigmask_n " failed");
|
|
112
|
1195 return (ngx_thread_value_t) 1;
|
|
0
|
1196 }
|
|
|
1197
|
|
|
1198 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
1199 "thread " NGX_TID_T_FMT " started", ngx_thread_self());
|
|
0
|
1200
|
|
|
1201 ngx_setthrtitle("worker thread");
|
|
|
1202
|
|
50
|
1203 tls = ngx_calloc(sizeof(ngx_core_tls_t), cycle->log);
|
|
|
1204 if (tls == NULL) {
|
|
112
|
1205 return (ngx_thread_value_t) 1;
|
|
0
|
1206 }
|
|
|
1207
|
|
|
1208 err = ngx_thread_set_tls(ngx_core_tls_key, tls);
|
|
|
1209 if (err != 0) {
|
|
|
1210 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
1211 ngx_thread_set_tls_n " failed");
|
|
112
|
1212 return (ngx_thread_value_t) 1;
|
|
0
|
1213 }
|
|
|
1214
|
|
112
|
1215 ngx_mutex_lock(ngx_posted_events_mutex);
|
|
0
|
1216
|
|
|
1217 for ( ;; ) {
|
|
|
1218 thr->state = NGX_THREAD_FREE;
|
|
|
1219
|
|
|
1220 if (ngx_cond_wait(thr->cv, ngx_posted_events_mutex) == NGX_ERROR) {
|
|
112
|
1221 return (ngx_thread_value_t) 1;
|
|
0
|
1222 }
|
|
|
1223
|
|
|
1224 if (ngx_terminate) {
|
|
|
1225 thr->state = NGX_THREAD_EXIT;
|
|
|
1226
|
|
|
1227 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
|
1228
|
|
|
1229 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
1230 "thread " NGX_TID_T_FMT " is done",
|
|
|
1231 ngx_thread_self());
|
|
0
|
1232
|
|
112
|
1233 return (ngx_thread_value_t) 0;
|
|
0
|
1234 }
|
|
|
1235
|
|
|
1236 thr->state = NGX_THREAD_BUSY;
|
|
|
1237
|
|
|
1238 if (ngx_event_thread_process_posted(cycle) == NGX_ERROR) {
|
|
112
|
1239 return (ngx_thread_value_t) 1;
|
|
0
|
1240 }
|
|
|
1241
|
|
|
1242 if (ngx_event_thread_process_posted(cycle) == NGX_ERROR) {
|
|
112
|
1243 return (ngx_thread_value_t) 1;
|
|
0
|
1244 }
|
|
|
1245
|
|
|
1246 if (ngx_process_changes) {
|
|
|
1247 if (ngx_process_changes(cycle, 1) == NGX_ERROR) {
|
|
112
|
1248 return (ngx_thread_value_t) 1;
|
|
0
|
1249 }
|
|
|
1250 }
|
|
|
1251 }
|
|
|
1252 }
|
|
|
1253
|
|
|
1254 #endif
|
|
16
|
1255
|
|
|
1256
|
|
50
|
1257 #if 0
|
|
|
1258
|
|
|
1259 static void
|
|
|
1260 ngx_garbage_collector_cycle(ngx_cycle_t *cycle, void *data)
|
|
16
|
1261 {
|
|
|
1262 ngx_uint_t i;
|
|
|
1263 ngx_gc_t ctx;
|
|
|
1264 ngx_path_t **path;
|
|
|
1265 ngx_event_t *ev;
|
|
|
1266
|
|
22
|
1267 ngx_worker_process_init(cycle, 0);
|
|
16
|
1268
|
|
92
|
1269 ev = &cycle->read_events0[ngx_channel];
|
|
16
|
1270
|
|
|
1271 ngx_accept_mutex = NULL;
|
|
|
1272
|
|
|
1273 ngx_setproctitle("garbage collector");
|
|
|
1274
|
|
|
1275 #if 0
|
|
|
1276 ngx_add_timer(ev, 60 * 1000);
|
|
|
1277 #endif
|
|
|
1278
|
|
|
1279 for ( ;; ) {
|
|
|
1280
|
|
|
1281 if (ngx_terminate || ngx_quit) {
|
|
26
|
1282 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
16
|
1283 exit(0);
|
|
|
1284 }
|
|
|
1285
|
|
|
1286 if (ngx_reopen) {
|
|
|
1287 ngx_reopen = 0;
|
|
26
|
1288 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
|
16
|
1289 ngx_reopen_files(cycle, -1);
|
|
|
1290 }
|
|
|
1291
|
|
|
1292 path = cycle->pathes.elts;
|
|
|
1293 for (i = 0; i < cycle->pathes.nelts; i++) {
|
|
|
1294 ctx.path = path[i];
|
|
|
1295 ctx.log = cycle->log;
|
|
28
|
1296 ctx.handler = path[i]->cleaner;
|
|
16
|
1297
|
|
|
1298 ngx_collect_garbage(&ctx, &path[i]->name, 0);
|
|
|
1299 }
|
|
|
1300
|
|
|
1301 ngx_add_timer(ev, 60 * 60 * 1000);
|
|
|
1302
|
|
112
|
1303 ngx_process_events_and_timers(cycle);
|
|
16
|
1304 }
|
|
|
1305 }
|
|
50
|
1306
|
|
|
1307 #endif
|
