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0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10 #include <ngx_channel.h>
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11
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12
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13 static void ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t n,
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50
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14 ngx_int_t type);
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514
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15 static void ngx_start_cache_manager_processes(ngx_cycle_t *cycle,
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16 ngx_uint_t respawn);
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17 static void ngx_pass_open_channel(ngx_cycle_t *cycle, ngx_channel_t *ch);
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0
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18 static void ngx_signal_worker_processes(ngx_cycle_t *cycle, int signo);
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340
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19 static ngx_uint_t ngx_reap_children(ngx_cycle_t *cycle);
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122
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20 static void ngx_master_process_exit(ngx_cycle_t *cycle);
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0
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21 static void ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data);
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22
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22 static void ngx_worker_process_init(ngx_cycle_t *cycle, ngx_uint_t priority);
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122
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23 static void ngx_worker_process_exit(ngx_cycle_t *cycle);
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0
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24 static void ngx_channel_handler(ngx_event_t *ev);
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25 #if (NGX_THREADS)
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26 static void ngx_wakeup_worker_threads(ngx_cycle_t *cycle);
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112
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27 static ngx_thread_value_t ngx_worker_thread_cycle(void *data);
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0
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28 #endif
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468
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29 static void ngx_cache_manager_process_cycle(ngx_cycle_t *cycle, void *data);
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30 static void ngx_cache_manager_process_handler(ngx_event_t *ev);
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514
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31 static void ngx_cache_loader_process_handler(ngx_event_t *ev);
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0
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32
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33
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34 ngx_uint_t ngx_process;
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35 ngx_pid_t ngx_pid;
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36 ngx_uint_t ngx_threaded;
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37
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38 sig_atomic_t ngx_reap;
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39 sig_atomic_t ngx_sigio;
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518
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40 sig_atomic_t ngx_sigalrm;
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0
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41 sig_atomic_t ngx_terminate;
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42 sig_atomic_t ngx_quit;
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26
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43 sig_atomic_t ngx_debug_quit;
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0
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44 ngx_uint_t ngx_exiting;
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45 sig_atomic_t ngx_reconfigure;
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46 sig_atomic_t ngx_reopen;
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47
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48 sig_atomic_t ngx_change_binary;
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49 ngx_pid_t ngx_new_binary;
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50 ngx_uint_t ngx_inherited;
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51 ngx_uint_t ngx_daemonized;
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52
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53 sig_atomic_t ngx_noaccept;
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54 ngx_uint_t ngx_noaccepting;
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55 ngx_uint_t ngx_restart;
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56
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57
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58 #if (NGX_THREADS)
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59 volatile ngx_thread_t ngx_threads[NGX_MAX_THREADS];
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60 ngx_int_t ngx_threads_n;
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61 #endif
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62
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63
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126
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64 u_long cpu_affinity;
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65 static u_char master_process[] = "master process";
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0
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66
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67
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514
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68 static ngx_cache_manager_ctx_t ngx_cache_manager_ctx = {
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69 ngx_cache_manager_process_handler, "cache manager process", 0
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70 };
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71
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72 static ngx_cache_manager_ctx_t ngx_cache_loader_ctx = {
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73 ngx_cache_loader_process_handler, "cache loader process", 60000
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74 };
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75
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76
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332
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77 static ngx_cycle_t ngx_exit_cycle;
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78 static ngx_log_t ngx_exit_log;
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79 static ngx_open_file_t ngx_exit_log_file;
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80
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81
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50
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82 void
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83 ngx_master_process_cycle(ngx_cycle_t *cycle)
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0
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84 {
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85 char *title;
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86 u_char *p;
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87 size_t size;
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88 ngx_int_t i;
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542
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89 ngx_uint_t n, sigio;
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0
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90 sigset_t set;
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91 struct itimerval itv;
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92 ngx_uint_t live;
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93 ngx_msec_t delay;
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80
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94 ngx_listening_t *ls;
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0
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95 ngx_core_conf_t *ccf;
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96
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97 sigemptyset(&set);
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98 sigaddset(&set, SIGCHLD);
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99 sigaddset(&set, SIGALRM);
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100 sigaddset(&set, SIGIO);
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101 sigaddset(&set, SIGINT);
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102 sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
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103 sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
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104 sigaddset(&set, ngx_signal_value(NGX_NOACCEPT_SIGNAL));
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105 sigaddset(&set, ngx_signal_value(NGX_TERMINATE_SIGNAL));
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106 sigaddset(&set, ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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107 sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
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108
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109 if (sigprocmask(SIG_BLOCK, &set, NULL) == -1) {
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110 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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111 "sigprocmask() failed");
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112 }
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113
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114 sigemptyset(&set);
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115
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116
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117 size = sizeof(master_process);
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118
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2
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119 for (i = 0; i < ngx_argc; i++) {
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120 size += ngx_strlen(ngx_argv[i]) + 1;
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0
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121 }
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122
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382
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123 title = ngx_pnalloc(cycle->pool, size);
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0
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124
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125 p = ngx_cpymem(title, master_process, sizeof(master_process) - 1);
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2
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126 for (i = 0; i < ngx_argc; i++) {
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127 *p++ = ' ';
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2
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128 p = ngx_cpystrn(p, (u_char *) ngx_argv[i], size);
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0
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129 }
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130
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131 ngx_setproctitle(title);
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132
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133
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134 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
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135
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136 ngx_start_worker_processes(cycle, ccf->worker_processes,
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137 NGX_PROCESS_RESPAWN);
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514
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138 ngx_start_cache_manager_processes(cycle, 0);
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0
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139
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140 ngx_new_binary = 0;
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141 delay = 0;
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542
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142 sigio = 0;
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0
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143 live = 1;
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144
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145 for ( ;; ) {
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146 if (delay) {
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518
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147 if (ngx_sigalrm) {
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542
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148 sigio = 0;
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518
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149 delay *= 2;
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150 ngx_sigalrm = 0;
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151 }
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0
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152
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153 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
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518
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154 "termination cycle: %d", delay);
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0
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155
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156 itv.it_interval.tv_sec = 0;
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157 itv.it_interval.tv_usec = 0;
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158 itv.it_value.tv_sec = delay / 1000;
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159 itv.it_value.tv_usec = (delay % 1000 ) * 1000;
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160
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161 if (setitimer(ITIMER_REAL, &itv, NULL) == -1) {
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162 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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163 "setitimer() failed");
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164 }
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165 }
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166
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167 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "sigsuspend");
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168
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169 sigsuspend(&set);
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170
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566
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171 ngx_time_update();
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0
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172
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544
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173 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
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542
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174 "wake up, sigio %i", sigio);
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0
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175
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176 if (ngx_reap) {
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177 ngx_reap = 0;
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340
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178 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "reap children");
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0
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179
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340
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180 live = ngx_reap_children(cycle);
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0
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181 }
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182
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183 if (!live && (ngx_terminate || ngx_quit)) {
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122
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184 ngx_master_process_exit(cycle);
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0
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185 }
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186
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187 if (ngx_terminate) {
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188 if (delay == 0) {
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189 delay = 50;
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190 }
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191
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542
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192 if (sigio) {
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193 sigio--;
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194 continue;
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195 }
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196
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197 sigio = ccf->worker_processes + 2 /* cache processes */;
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198
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0
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199 if (delay > 1000) {
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200 ngx_signal_worker_processes(cycle, SIGKILL);
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201 } else {
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202 ngx_signal_worker_processes(cycle,
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203 ngx_signal_value(NGX_TERMINATE_SIGNAL));
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204 }
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205
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206 continue;
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207 }
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208
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209 if (ngx_quit) {
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210 ngx_signal_worker_processes(cycle,
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211 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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80
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212
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213 ls = cycle->listening.elts;
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214 for (n = 0; n < cycle->listening.nelts; n++) {
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215 if (ngx_close_socket(ls[n].fd) == -1) {
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216 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_socket_errno,
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217 ngx_close_socket_n " %V failed",
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218 &ls[n].addr_text);
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219 }
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220 }
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221 cycle->listening.nelts = 0;
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222
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0
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223 continue;
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224 }
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225
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226 if (ngx_reconfigure) {
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227 ngx_reconfigure = 0;
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228
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229 if (ngx_new_binary) {
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230 ngx_start_worker_processes(cycle, ccf->worker_processes,
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231 NGX_PROCESS_RESPAWN);
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514
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232 ngx_start_cache_manager_processes(cycle, 0);
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0
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233 ngx_noaccepting = 0;
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234
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235 continue;
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236 }
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237
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26
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238 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
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0
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239
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240 cycle = ngx_init_cycle(cycle);
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241 if (cycle == NULL) {
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242 cycle = (ngx_cycle_t *) ngx_cycle;
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243 continue;
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244 }
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245
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246 ngx_cycle = cycle;
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247 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
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248 ngx_core_module);
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249 ngx_start_worker_processes(cycle, ccf->worker_processes,
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250 NGX_PROCESS_JUST_RESPAWN);
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514
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251 ngx_start_cache_manager_processes(cycle, 1);
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0
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252 live = 1;
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253 ngx_signal_worker_processes(cycle,
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254 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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255 }
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256
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257 if (ngx_restart) {
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258 ngx_restart = 0;
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259 ngx_start_worker_processes(cycle, ccf->worker_processes,
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260 NGX_PROCESS_RESPAWN);
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514
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261 ngx_start_cache_manager_processes(cycle, 0);
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0
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262 live = 1;
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263 }
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264
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265 if (ngx_reopen) {
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266 ngx_reopen = 0;
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26
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267 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
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0
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268 ngx_reopen_files(cycle, ccf->user);
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269 ngx_signal_worker_processes(cycle,
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270 ngx_signal_value(NGX_REOPEN_SIGNAL));
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271 }
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272
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273 if (ngx_change_binary) {
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274 ngx_change_binary = 0;
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26
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275 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "changing binary");
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2
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276 ngx_new_binary = ngx_exec_new_binary(cycle, ngx_argv);
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0
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277 }
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278
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279 if (ngx_noaccept) {
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280 ngx_noaccept = 0;
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281 ngx_noaccepting = 1;
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282 ngx_signal_worker_processes(cycle,
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283 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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284 }
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285 }
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286 }
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287
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288
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50
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289 void
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290 ngx_single_process_cycle(ngx_cycle_t *cycle)
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0
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291 {
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292 ngx_uint_t i;
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293
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294 for (i = 0; ngx_modules[i]; i++) {
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295 if (ngx_modules[i]->init_process) {
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296 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
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297 /* fatal */
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298 exit(2);
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299 }
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300 }
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301 }
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302
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303 for ( ;; ) {
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304 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
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305
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112
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306 ngx_process_events_and_timers(cycle);
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0
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307
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308 if (ngx_terminate || ngx_quit) {
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120
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309
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310 for (i = 0; ngx_modules[i]; i++) {
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311 if (ngx_modules[i]->exit_process) {
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312 ngx_modules[i]->exit_process(cycle);
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313 }
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314 }
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315
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122
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316 ngx_master_process_exit(cycle);
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0
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317 }
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318
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319 if (ngx_reconfigure) {
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320 ngx_reconfigure = 0;
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26
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321 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
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0
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322
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323 cycle = ngx_init_cycle(cycle);
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324 if (cycle == NULL) {
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325 cycle = (ngx_cycle_t *) ngx_cycle;
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326 continue;
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327 }
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328
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329 ngx_cycle = cycle;
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330 }
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331
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332 if (ngx_reopen) {
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333 ngx_reopen = 0;
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26
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334 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
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0
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335 ngx_reopen_files(cycle, (ngx_uid_t) -1);
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336 }
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337 }
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338 }
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339
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340
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50
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341 static void
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342 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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343 {
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514
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344 ngx_int_t i;
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106
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345 ngx_channel_t ch;
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0
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346
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26
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347 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start worker processes");
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0
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348
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349 ch.command = NGX_CMD_OPEN_CHANNEL;
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350
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126
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351 for (i = 0; i < n; i++) {
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352
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353 cpu_affinity = ngx_get_cpu_affinity(i);
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354
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0
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355 ngx_spawn_process(cycle, ngx_worker_process_cycle, NULL,
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356 "worker process", type);
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357
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358 ch.pid = ngx_processes[ngx_process_slot].pid;
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359 ch.slot = ngx_process_slot;
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360 ch.fd = ngx_processes[ngx_process_slot].channel[0];
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361
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514
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362 ngx_pass_open_channel(cycle, &ch);
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0
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363 }
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364 }
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365
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366
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50
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367 static void
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514
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368 ngx_start_cache_manager_processes(ngx_cycle_t *cycle, ngx_uint_t respawn)
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16
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369 {
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514
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370 ngx_uint_t i, manager, loader;
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464
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371 ngx_path_t **path;
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372 ngx_channel_t ch;
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16
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373
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514
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374 manager = 0;
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375 loader = 0;
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376
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464
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377 path = ngx_cycle->pathes.elts;
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514
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378 for (i = 0; i < ngx_cycle->pathes.nelts; i++) {
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379
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|
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380 if (path[i]->manager) {
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381 manager = 1;
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|
|
382 }
|
|
|
383
|
|
|
384 if (path[i]->loader) {
|
|
|
385 loader = 1;
|
|
464
|
386 }
|
|
|
387 }
|
|
|
388
|
|
514
|
389 if (manager == 0) {
|
|
|
390 return;
|
|
|
391 }
|
|
464
|
392
|
|
514
|
393 ngx_spawn_process(cycle, ngx_cache_manager_process_cycle,
|
|
|
394 &ngx_cache_manager_ctx, "cache manager process",
|
|
|
395 respawn ? NGX_PROCESS_JUST_RESPAWN : NGX_PROCESS_RESPAWN);
|
|
16
|
396
|
|
|
397 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
|
398 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
|
399 ch.slot = ngx_process_slot;
|
|
|
400 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
|
401
|
|
514
|
402 ngx_pass_open_channel(cycle, &ch);
|
|
|
403
|
|
|
404 if (loader == 0) {
|
|
|
405 return;
|
|
|
406 }
|
|
|
407
|
|
|
408 ngx_spawn_process(cycle, ngx_cache_manager_process_cycle,
|
|
|
409 &ngx_cache_loader_ctx, "cache loader process",
|
|
|
410 respawn ? NGX_PROCESS_JUST_SPAWN : NGX_PROCESS_NORESPAWN);
|
|
|
411
|
|
|
412 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
|
413 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
|
414 ch.slot = ngx_process_slot;
|
|
|
415 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
|
416
|
|
|
417 ngx_pass_open_channel(cycle, &ch);
|
|
|
418 }
|
|
|
419
|
|
|
420
|
|
|
421 static void
|
|
|
422 ngx_pass_open_channel(ngx_cycle_t *cycle, ngx_channel_t *ch)
|
|
|
423 {
|
|
|
424 ngx_int_t i;
|
|
|
425
|
|
16
|
426 for (i = 0; i < ngx_last_process; i++) {
|
|
|
427
|
|
|
428 if (i == ngx_process_slot
|
|
|
429 || ngx_processes[i].pid == -1
|
|
|
430 || ngx_processes[i].channel[0] == -1)
|
|
|
431 {
|
|
|
432 continue;
|
|
|
433 }
|
|
|
434
|
|
|
435 ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
436 "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",
|
|
514
|
437 ch->slot, ch->pid, ch->fd,
|
|
16
|
438 i, ngx_processes[i].pid,
|
|
|
439 ngx_processes[i].channel[0]);
|
|
|
440
|
|
|
441 /* TODO: NGX_AGAIN */
|
|
|
442
|
|
|
443 ngx_write_channel(ngx_processes[i].channel[0],
|
|
514
|
444 ch, sizeof(ngx_channel_t), cycle->log);
|
|
16
|
445 }
|
|
|
446 }
|
|
|
447
|
|
|
448
|
|
50
|
449 static void
|
|
|
450 ngx_signal_worker_processes(ngx_cycle_t *cycle, int signo)
|
|
0
|
451 {
|
|
|
452 ngx_int_t i;
|
|
|
453 ngx_err_t err;
|
|
|
454 ngx_channel_t ch;
|
|
|
455
|
|
342
|
456 #if (NGX_BROKEN_SCM_RIGHTS)
|
|
|
457
|
|
|
458 ch.command = 0;
|
|
|
459
|
|
|
460 #else
|
|
|
461
|
|
0
|
462 switch (signo) {
|
|
|
463
|
|
|
464 case ngx_signal_value(NGX_SHUTDOWN_SIGNAL):
|
|
|
465 ch.command = NGX_CMD_QUIT;
|
|
|
466 break;
|
|
|
467
|
|
|
468 case ngx_signal_value(NGX_TERMINATE_SIGNAL):
|
|
|
469 ch.command = NGX_CMD_TERMINATE;
|
|
|
470 break;
|
|
|
471
|
|
|
472 case ngx_signal_value(NGX_REOPEN_SIGNAL):
|
|
|
473 ch.command = NGX_CMD_REOPEN;
|
|
|
474 break;
|
|
|
475
|
|
|
476 default:
|
|
|
477 ch.command = 0;
|
|
|
478 }
|
|
|
479
|
|
342
|
480 #endif
|
|
|
481
|
|
0
|
482 ch.fd = -1;
|
|
|
483
|
|
|
484
|
|
|
485 for (i = 0; i < ngx_last_process; i++) {
|
|
|
486
|
|
|
487 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
488 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
|
0
|
489 i,
|
|
|
490 ngx_processes[i].pid,
|
|
|
491 ngx_processes[i].exiting,
|
|
|
492 ngx_processes[i].exited,
|
|
|
493 ngx_processes[i].detached,
|
|
|
494 ngx_processes[i].respawn,
|
|
514
|
495 ngx_processes[i].just_spawn);
|
|
0
|
496
|
|
|
497 if (ngx_processes[i].detached || ngx_processes[i].pid == -1) {
|
|
|
498 continue;
|
|
|
499 }
|
|
|
500
|
|
514
|
501 if (ngx_processes[i].just_spawn) {
|
|
|
502 ngx_processes[i].just_spawn = 0;
|
|
0
|
503 continue;
|
|
|
504 }
|
|
|
505
|
|
|
506 if (ngx_processes[i].exiting
|
|
|
507 && signo == ngx_signal_value(NGX_SHUTDOWN_SIGNAL))
|
|
|
508 {
|
|
|
509 continue;
|
|
|
510 }
|
|
|
511
|
|
|
512 if (ch.command) {
|
|
|
513 if (ngx_write_channel(ngx_processes[i].channel[0],
|
|
290
|
514 &ch, sizeof(ngx_channel_t), cycle->log)
|
|
|
515 == NGX_OK)
|
|
0
|
516 {
|
|
|
517 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
|
518 ngx_processes[i].exiting = 1;
|
|
|
519 }
|
|
|
520
|
|
|
521 continue;
|
|
|
522 }
|
|
|
523 }
|
|
|
524
|
|
|
525 ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
526 "kill (%P, %d)" , ngx_processes[i].pid, signo);
|
|
0
|
527
|
|
|
528 if (kill(ngx_processes[i].pid, signo) == -1) {
|
|
|
529 err = ngx_errno;
|
|
|
530 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
518
|
531 "kill(%P, %d) failed", ngx_processes[i].pid, signo);
|
|
0
|
532
|
|
|
533 if (err == NGX_ESRCH) {
|
|
|
534 ngx_processes[i].exited = 1;
|
|
|
535 ngx_processes[i].exiting = 0;
|
|
|
536 ngx_reap = 1;
|
|
|
537 }
|
|
|
538
|
|
|
539 continue;
|
|
|
540 }
|
|
|
541
|
|
|
542 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
|
543 ngx_processes[i].exiting = 1;
|
|
|
544 }
|
|
|
545 }
|
|
|
546 }
|
|
|
547
|
|
|
548
|
|
50
|
549 static ngx_uint_t
|
|
340
|
550 ngx_reap_children(ngx_cycle_t *cycle)
|
|
0
|
551 {
|
|
92
|
552 ngx_int_t i, n;
|
|
|
553 ngx_uint_t live;
|
|
|
554 ngx_channel_t ch;
|
|
|
555 ngx_core_conf_t *ccf;
|
|
0
|
556
|
|
|
557 ch.command = NGX_CMD_CLOSE_CHANNEL;
|
|
|
558 ch.fd = -1;
|
|
|
559
|
|
|
560 live = 0;
|
|
|
561 for (i = 0; i < ngx_last_process; i++) {
|
|
|
562
|
|
|
563 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
564 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
|
0
|
565 i,
|
|
|
566 ngx_processes[i].pid,
|
|
|
567 ngx_processes[i].exiting,
|
|
|
568 ngx_processes[i].exited,
|
|
|
569 ngx_processes[i].detached,
|
|
|
570 ngx_processes[i].respawn,
|
|
514
|
571 ngx_processes[i].just_spawn);
|
|
0
|
572
|
|
|
573 if (ngx_processes[i].pid == -1) {
|
|
|
574 continue;
|
|
|
575 }
|
|
|
576
|
|
|
577 if (ngx_processes[i].exited) {
|
|
|
578
|
|
|
579 if (!ngx_processes[i].detached) {
|
|
|
580 ngx_close_channel(ngx_processes[i].channel, cycle->log);
|
|
|
581
|
|
|
582 ngx_processes[i].channel[0] = -1;
|
|
|
583 ngx_processes[i].channel[1] = -1;
|
|
|
584
|
|
|
585 ch.pid = ngx_processes[i].pid;
|
|
|
586 ch.slot = i;
|
|
|
587
|
|
|
588 for (n = 0; n < ngx_last_process; n++) {
|
|
|
589 if (ngx_processes[n].exited
|
|
|
590 || ngx_processes[n].pid == -1
|
|
|
591 || ngx_processes[n].channel[0] == -1)
|
|
|
592 {
|
|
|
593 continue;
|
|
|
594 }
|
|
|
595
|
|
|
596 ngx_log_debug3(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
597 "pass close channel s:%i pid:%P to:%P",
|
|
|
598 ch.slot, ch.pid, ngx_processes[n].pid);
|
|
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 }
|
|
|
606
|
|
|
607 if (ngx_processes[i].respawn
|
|
|
608 && !ngx_processes[i].exiting
|
|
|
609 && !ngx_terminate
|
|
|
610 && !ngx_quit)
|
|
|
611 {
|
|
|
612 if (ngx_spawn_process(cycle, ngx_processes[i].proc,
|
|
|
613 ngx_processes[i].data,
|
|
|
614 ngx_processes[i].name, i)
|
|
92
|
615 == NGX_INVALID_PID)
|
|
0
|
616 {
|
|
|
617 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
618 "can not respawn %s", ngx_processes[i].name);
|
|
|
619 continue;
|
|
|
620 }
|
|
|
621
|
|
22
|
622
|
|
|
623 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
|
624 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
|
625 ch.slot = ngx_process_slot;
|
|
|
626 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
|
627
|
|
514
|
628 ngx_pass_open_channel(cycle, &ch);
|
|
22
|
629
|
|
0
|
630 live = 1;
|
|
|
631
|
|
|
632 continue;
|
|
|
633 }
|
|
|
634
|
|
|
635 if (ngx_processes[i].pid == ngx_new_binary) {
|
|
92
|
636
|
|
|
637 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
|
|
|
638 ngx_core_module);
|
|
|
639
|
|
|
640 if (ngx_rename_file((char *) ccf->oldpid.data,
|
|
|
641 (char *) ccf->pid.data)
|
|
|
642 != NGX_OK)
|
|
|
643 {
|
|
|
644 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
645 ngx_rename_file_n " %s back to %s failed "
|
|
|
646 "after the new binary process \"%s\" exited",
|
|
|
647 ccf->oldpid.data, ccf->pid.data, ngx_argv[0]);
|
|
|
648 }
|
|
|
649
|
|
0
|
650 ngx_new_binary = 0;
|
|
|
651 if (ngx_noaccepting) {
|
|
|
652 ngx_restart = 1;
|
|
|
653 ngx_noaccepting = 0;
|
|
|
654 }
|
|
|
655 }
|
|
|
656
|
|
|
657 if (i == ngx_last_process - 1) {
|
|
|
658 ngx_last_process--;
|
|
|
659
|
|
|
660 } else {
|
|
|
661 ngx_processes[i].pid = -1;
|
|
|
662 }
|
|
|
663
|
|
|
664 } else if (ngx_processes[i].exiting || !ngx_processes[i].detached) {
|
|
|
665 live = 1;
|
|
|
666 }
|
|
|
667 }
|
|
|
668
|
|
|
669 return live;
|
|
|
670 }
|
|
|
671
|
|
|
672
|
|
50
|
673 static void
|
|
122
|
674 ngx_master_process_exit(ngx_cycle_t *cycle)
|
|
0
|
675 {
|
|
120
|
676 ngx_uint_t i;
|
|
|
677
|
|
0
|
678 ngx_delete_pidfile(cycle);
|
|
|
679
|
|
26
|
680 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit");
|
|
0
|
681
|
|
120
|
682 for (i = 0; ngx_modules[i]; i++) {
|
|
|
683 if (ngx_modules[i]->exit_master) {
|
|
|
684 ngx_modules[i]->exit_master(cycle);
|
|
|
685 }
|
|
|
686 }
|
|
|
687
|
|
538
|
688 ngx_close_listening_sockets(cycle);
|
|
|
689
|
|
54
|
690 /*
|
|
332
|
691 * Copy ngx_cycle->log related data to the special static exit cycle,
|
|
|
692 * log, and log file structures enough to allow a signal handler to log.
|
|
|
693 * The handler may be called when standard ngx_cycle->log allocated from
|
|
|
694 * ngx_cycle->pool is already destroyed.
|
|
54
|
695 */
|
|
|
696
|
|
332
|
697 ngx_exit_log_file.fd = ngx_cycle->log->file->fd;
|
|
|
698
|
|
|
699 ngx_exit_log = *ngx_cycle->log;
|
|
|
700 ngx_exit_log.file = &ngx_exit_log_file;
|
|
|
701
|
|
|
702 ngx_exit_cycle.log = &ngx_exit_log;
|
|
|
703 ngx_cycle = &ngx_exit_cycle;
|
|
|
704
|
|
0
|
705 ngx_destroy_pool(cycle->pool);
|
|
|
706
|
|
|
707 exit(0);
|
|
|
708 }
|
|
|
709
|
|
|
710
|
|
50
|
711 static void
|
|
|
712 ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data)
|
|
0
|
713 {
|
|
290
|
714 ngx_uint_t i;
|
|
|
715 ngx_connection_t *c;
|
|
18
|
716
|
|
552
|
717 ngx_process = NGX_PROCESS_WORKER;
|
|
|
718
|
|
22
|
719 ngx_worker_process_init(cycle, 1);
|
|
0
|
720
|
|
|
721 ngx_setproctitle("worker process");
|
|
|
722
|
|
|
723 #if (NGX_THREADS)
|
|
356
|
724 {
|
|
|
725 ngx_int_t n;
|
|
|
726 ngx_err_t err;
|
|
|
727 ngx_core_conf_t *ccf;
|
|
0
|
728
|
|
18
|
729 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
730
|
|
0
|
731 if (ngx_threads_n) {
|
|
290
|
732 if (ngx_init_threads(ngx_threads_n, ccf->thread_stack_size, cycle)
|
|
|
733 == NGX_ERROR)
|
|
0
|
734 {
|
|
|
735 /* fatal */
|
|
|
736 exit(2);
|
|
|
737 }
|
|
|
738
|
|
|
739 err = ngx_thread_key_create(&ngx_core_tls_key);
|
|
|
740 if (err != 0) {
|
|
|
741 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
742 ngx_thread_key_create_n " failed");
|
|
|
743 /* fatal */
|
|
|
744 exit(2);
|
|
|
745 }
|
|
|
746
|
|
|
747 for (n = 0; n < ngx_threads_n; n++) {
|
|
|
748
|
|
50
|
749 ngx_threads[n].cv = ngx_cond_init(cycle->log);
|
|
|
750
|
|
|
751 if (ngx_threads[n].cv == NULL) {
|
|
0
|
752 /* fatal */
|
|
|
753 exit(2);
|
|
|
754 }
|
|
|
755
|
|
|
756 if (ngx_create_thread((ngx_tid_t *) &ngx_threads[n].tid,
|
|
|
757 ngx_worker_thread_cycle,
|
|
290
|
758 (void *) &ngx_threads[n], cycle->log)
|
|
|
759 != 0)
|
|
0
|
760 {
|
|
|
761 /* fatal */
|
|
|
762 exit(2);
|
|
|
763 }
|
|
|
764 }
|
|
|
765 }
|
|
356
|
766 }
|
|
0
|
767 #endif
|
|
|
768
|
|
|
769 for ( ;; ) {
|
|
290
|
770
|
|
|
771 if (ngx_exiting) {
|
|
|
772
|
|
|
773 c = cycle->connections;
|
|
|
774
|
|
|
775 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
776
|
|
|
777 /* THREAD: lock */
|
|
0
|
778
|
|
290
|
779 if (c[i].fd != -1 && c[i].idle) {
|
|
|
780 c[i].close = 1;
|
|
|
781 c[i].read->handler(c[i].read);
|
|
|
782 }
|
|
|
783 }
|
|
|
784
|
|
|
785 if (ngx_event_timer_rbtree.root == ngx_event_timer_rbtree.sentinel)
|
|
|
786 {
|
|
|
787 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
|
788
|
|
|
789 ngx_worker_process_exit(cycle);
|
|
|
790 }
|
|
0
|
791 }
|
|
|
792
|
|
|
793 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
|
|
|
794
|
|
112
|
795 ngx_process_events_and_timers(cycle);
|
|
0
|
796
|
|
|
797 if (ngx_terminate) {
|
|
26
|
798 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
0
|
799
|
|
122
|
800 ngx_worker_process_exit(cycle);
|
|
0
|
801 }
|
|
|
802
|
|
|
803 if (ngx_quit) {
|
|
|
804 ngx_quit = 0;
|
|
26
|
805 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
0
|
806 "gracefully shutting down");
|
|
|
807 ngx_setproctitle("worker process is shutting down");
|
|
|
808
|
|
|
809 if (!ngx_exiting) {
|
|
|
810 ngx_close_listening_sockets(cycle);
|
|
|
811 ngx_exiting = 1;
|
|
|
812 }
|
|
|
813 }
|
|
|
814
|
|
|
815 if (ngx_reopen) {
|
|
|
816 ngx_reopen = 0;
|
|
26
|
817 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
|
0
|
818 ngx_reopen_files(cycle, -1);
|
|
|
819 }
|
|
|
820 }
|
|
|
821 }
|
|
|
822
|
|
|
823
|
|
50
|
824 static void
|
|
|
825 ngx_worker_process_init(ngx_cycle_t *cycle, ngx_uint_t priority)
|
|
16
|
826 {
|
|
278
|
827 sigset_t set;
|
|
|
828 ngx_int_t n;
|
|
|
829 ngx_uint_t i;
|
|
|
830 struct rlimit rlmt;
|
|
|
831 ngx_core_conf_t *ccf;
|
|
|
832 ngx_listening_t *ls;
|
|
16
|
833
|
|
278
|
834 if (ngx_set_environment(cycle, NULL) == NULL) {
|
|
|
835 /* fatal */
|
|
|
836 exit(2);
|
|
|
837 }
|
|
|
838
|
|
16
|
839 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
840
|
|
328
|
841 if (priority && ccf->priority != 0) {
|
|
|
842 if (setpriority(PRIO_PROCESS, 0, ccf->priority) == -1) {
|
|
|
843 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
844 "setpriority(%d) failed", ccf->priority);
|
|
22
|
845 }
|
|
328
|
846 }
|
|
22
|
847
|
|
328
|
848 if (ccf->rlimit_nofile != NGX_CONF_UNSET) {
|
|
|
849 rlmt.rlim_cur = (rlim_t) ccf->rlimit_nofile;
|
|
|
850 rlmt.rlim_max = (rlim_t) ccf->rlimit_nofile;
|
|
92
|
851
|
|
328
|
852 if (setrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
|
|
|
853 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
854 "setrlimit(RLIMIT_NOFILE, %i) failed",
|
|
|
855 ccf->rlimit_nofile);
|
|
92
|
856 }
|
|
328
|
857 }
|
|
92
|
858
|
|
598
|
859 if (ccf->rlimit_core != NGX_CONF_UNSET) {
|
|
328
|
860 rlmt.rlim_cur = (rlim_t) ccf->rlimit_core;
|
|
|
861 rlmt.rlim_max = (rlim_t) ccf->rlimit_core;
|
|
138
|
862
|
|
328
|
863 if (setrlimit(RLIMIT_CORE, &rlmt) == -1) {
|
|
|
864 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
598
|
865 "setrlimit(RLIMIT_CORE, %O) failed",
|
|
328
|
866 ccf->rlimit_core);
|
|
138
|
867 }
|
|
328
|
868 }
|
|
138
|
869
|
|
92
|
870 #ifdef RLIMIT_SIGPENDING
|
|
328
|
871 if (ccf->rlimit_sigpending != NGX_CONF_UNSET) {
|
|
|
872 rlmt.rlim_cur = (rlim_t) ccf->rlimit_sigpending;
|
|
|
873 rlmt.rlim_max = (rlim_t) ccf->rlimit_sigpending;
|
|
92
|
874
|
|
328
|
875 if (setrlimit(RLIMIT_SIGPENDING, &rlmt) == -1) {
|
|
|
876 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
877 "setrlimit(RLIMIT_SIGPENDING, %i) failed",
|
|
|
878 ccf->rlimit_sigpending);
|
|
92
|
879 }
|
|
328
|
880 }
|
|
92
|
881 #endif
|
|
|
882
|
|
328
|
883 if (geteuid() == 0) {
|
|
16
|
884 if (setgid(ccf->group) == -1) {
|
|
|
885 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
886 "setgid(%d) failed", ccf->group);
|
|
|
887 /* fatal */
|
|
|
888 exit(2);
|
|
|
889 }
|
|
|
890
|
|
22
|
891 if (initgroups(ccf->username, ccf->group) == -1) {
|
|
|
892 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
893 "initgroups(%s, %d) failed",
|
|
|
894 ccf->username, ccf->group);
|
|
|
895 }
|
|
|
896
|
|
16
|
897 if (setuid(ccf->user) == -1) {
|
|
|
898 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
899 "setuid(%d) failed", ccf->user);
|
|
|
900 /* fatal */
|
|
|
901 exit(2);
|
|
|
902 }
|
|
|
903 }
|
|
|
904
|
|
126
|
905 #if (NGX_HAVE_SCHED_SETAFFINITY)
|
|
|
906
|
|
|
907 if (cpu_affinity) {
|
|
|
908 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
|
909 "sched_setaffinity(0x%08Xl)", cpu_affinity);
|
|
|
910
|
|
|
911 if (sched_setaffinity(0, 32, (cpu_set_t *) &cpu_affinity) == -1) {
|
|
|
912 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
913 "sched_setaffinity(0x%08Xl) failed", cpu_affinity);
|
|
|
914 }
|
|
|
915 }
|
|
|
916
|
|
|
917 #endif
|
|
|
918
|
|
16
|
919 #if (NGX_HAVE_PR_SET_DUMPABLE)
|
|
|
920
|
|
|
921 /* allow coredump after setuid() in Linux 2.4.x */
|
|
|
922
|
|
|
923 if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1) {
|
|
|
924 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
925 "prctl(PR_SET_DUMPABLE) failed");
|
|
|
926 }
|
|
|
927
|
|
|
928 #endif
|
|
|
929
|
|
70
|
930 if (ccf->working_directory.len) {
|
|
72
|
931 if (chdir((char *) ccf->working_directory.data) == -1) {
|
|
70
|
932 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
933 "chdir(\"%s\") failed", ccf->working_directory.data);
|
|
|
934 /* fatal */
|
|
|
935 exit(2);
|
|
|
936 }
|
|
|
937 }
|
|
|
938
|
|
16
|
939 sigemptyset(&set);
|
|
|
940
|
|
|
941 if (sigprocmask(SIG_SETMASK, &set, NULL) == -1) {
|
|
|
942 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
943 "sigprocmask() failed");
|
|
|
944 }
|
|
|
945
|
|
|
946 /*
|
|
|
947 * disable deleting previous events for the listening sockets because
|
|
|
948 * in the worker processes there are no events at all at this point
|
|
126
|
949 */
|
|
16
|
950 ls = cycle->listening.elts;
|
|
|
951 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
92
|
952 ls[i].previous = NULL;
|
|
16
|
953 }
|
|
|
954
|
|
|
955 for (i = 0; ngx_modules[i]; i++) {
|
|
|
956 if (ngx_modules[i]->init_process) {
|
|
|
957 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
|
|
|
958 /* fatal */
|
|
|
959 exit(2);
|
|
|
960 }
|
|
|
961 }
|
|
|
962 }
|
|
|
963
|
|
|
964 for (n = 0; n < ngx_last_process; n++) {
|
|
|
965
|
|
|
966 if (ngx_processes[n].pid == -1) {
|
|
|
967 continue;
|
|
|
968 }
|
|
|
969
|
|
|
970 if (n == ngx_process_slot) {
|
|
|
971 continue;
|
|
|
972 }
|
|
|
973
|
|
|
974 if (ngx_processes[n].channel[1] == -1) {
|
|
|
975 continue;
|
|
|
976 }
|
|
|
977
|
|
|
978 if (close(ngx_processes[n].channel[1]) == -1) {
|
|
|
979 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
980 "close() channel failed");
|
|
|
981 }
|
|
|
982 }
|
|
|
983
|
|
|
984 if (close(ngx_processes[ngx_process_slot].channel[0]) == -1) {
|
|
|
985 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
986 "close() channel failed");
|
|
|
987 }
|
|
|
988
|
|
|
989 #if 0
|
|
|
990 ngx_last_process = 0;
|
|
|
991 #endif
|
|
|
992
|
|
|
993 if (ngx_add_channel_event(cycle, ngx_channel, NGX_READ_EVENT,
|
|
290
|
994 ngx_channel_handler)
|
|
|
995 == NGX_ERROR)
|
|
16
|
996 {
|
|
|
997 /* fatal */
|
|
|
998 exit(2);
|
|
|
999 }
|
|
|
1000 }
|
|
|
1001
|
|
|
1002
|
|
50
|
1003 static void
|
|
122
|
1004 ngx_worker_process_exit(ngx_cycle_t *cycle)
|
|
|
1005 {
|
|
|
1006 ngx_uint_t i;
|
|
|
1007 ngx_connection_t *c;
|
|
|
1008
|
|
|
1009 #if (NGX_THREADS)
|
|
|
1010 ngx_terminate = 1;
|
|
|
1011
|
|
|
1012 ngx_wakeup_worker_threads(cycle);
|
|
|
1013 #endif
|
|
|
1014
|
|
|
1015 for (i = 0; ngx_modules[i]; i++) {
|
|
|
1016 if (ngx_modules[i]->exit_process) {
|
|
|
1017 ngx_modules[i]->exit_process(cycle);
|
|
|
1018 }
|
|
|
1019 }
|
|
|
1020
|
|
366
|
1021 if (ngx_exiting) {
|
|
136
|
1022 c = cycle->connections;
|
|
|
1023 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
1024 if (c[i].fd != -1
|
|
|
1025 && c[i].read
|
|
|
1026 && !c[i].read->accept
|
|
366
|
1027 && !c[i].read->channel
|
|
|
1028 && !c[i].read->resolver)
|
|
136
|
1029 {
|
|
|
1030 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
514
|
1031 "open socket #%d left in connection %ui",
|
|
|
1032 c[i].fd, i);
|
|
|
1033 ngx_debug_quit = 1;
|
|
136
|
1034 }
|
|
122
|
1035 }
|
|
|
1036
|
|
136
|
1037 if (ngx_debug_quit) {
|
|
514
|
1038 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, "aborting");
|
|
136
|
1039 ngx_debug_point();
|
|
|
1040 }
|
|
122
|
1041 }
|
|
|
1042
|
|
|
1043 /*
|
|
332
|
1044 * Copy ngx_cycle->log related data to the special static exit cycle,
|
|
|
1045 * log, and log file structures enough to allow a signal handler to log.
|
|
|
1046 * The handler may be called when standard ngx_cycle->log allocated from
|
|
|
1047 * ngx_cycle->pool is already destroyed.
|
|
122
|
1048 */
|
|
|
1049
|
|
332
|
1050 ngx_exit_log_file.fd = ngx_cycle->log->file->fd;
|
|
|
1051
|
|
|
1052 ngx_exit_log = *ngx_cycle->log;
|
|
|
1053 ngx_exit_log.file = &ngx_exit_log_file;
|
|
|
1054
|
|
|
1055 ngx_exit_cycle.log = &ngx_exit_log;
|
|
|
1056 ngx_cycle = &ngx_exit_cycle;
|
|
|
1057
|
|
122
|
1058 ngx_destroy_pool(cycle->pool);
|
|
332
|
1059
|
|
|
1060 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, "exit");
|
|
122
|
1061
|
|
|
1062 exit(0);
|
|
|
1063 }
|
|
|
1064
|
|
|
1065
|
|
|
1066 static void
|
|
50
|
1067 ngx_channel_handler(ngx_event_t *ev)
|
|
0
|
1068 {
|
|
|
1069 ngx_int_t n;
|
|
|
1070 ngx_channel_t ch;
|
|
|
1071 ngx_connection_t *c;
|
|
|
1072
|
|
16
|
1073 if (ev->timedout) {
|
|
|
1074 ev->timedout = 0;
|
|
|
1075 return;
|
|
|
1076 }
|
|
|
1077
|
|
0
|
1078 c = ev->data;
|
|
|
1079
|
|
|
1080 ngx_log_debug0(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel handler");
|
|
|
1081
|
|
378
|
1082 for ( ;; ) {
|
|
0
|
1083
|
|
378
|
1084 n = ngx_read_channel(c->fd, &ch, sizeof(ngx_channel_t), ev->log);
|
|
|
1085
|
|
|
1086 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel: %i", n);
|
|
0
|
1087
|
|
378
|
1088 if (n == NGX_ERROR) {
|
|
366
|
1089
|
|
378
|
1090 if (ngx_event_flags & NGX_USE_EPOLL_EVENT) {
|
|
|
1091 ngx_del_conn(c, 0);
|
|
|
1092 }
|
|
|
1093
|
|
|
1094 ngx_close_connection(c);
|
|
|
1095 return;
|
|
366
|
1096 }
|
|
|
1097
|
|
378
|
1098 if (ngx_event_flags & NGX_USE_EVENTPORT_EVENT) {
|
|
|
1099 if (ngx_add_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
1100 return;
|
|
|
1101 }
|
|
|
1102 }
|
|
10
|
1103
|
|
378
|
1104 if (n == NGX_AGAIN) {
|
|
290
|
1105 return;
|
|
|
1106 }
|
|
378
|
1107
|
|
|
1108 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1109 "channel command: %d", ch.command);
|
|
290
|
1110
|
|
378
|
1111 switch (ch.command) {
|
|
0
|
1112
|
|
378
|
1113 case NGX_CMD_QUIT:
|
|
|
1114 ngx_quit = 1;
|
|
|
1115 break;
|
|
0
|
1116
|
|
378
|
1117 case NGX_CMD_TERMINATE:
|
|
|
1118 ngx_terminate = 1;
|
|
|
1119 break;
|
|
0
|
1120
|
|
378
|
1121 case NGX_CMD_REOPEN:
|
|
|
1122 ngx_reopen = 1;
|
|
|
1123 break;
|
|
0
|
1124
|
|
378
|
1125 case NGX_CMD_OPEN_CHANNEL:
|
|
0
|
1126
|
|
378
|
1127 ngx_log_debug3(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1128 "get channel s:%i pid:%P fd:%d",
|
|
|
1129 ch.slot, ch.pid, ch.fd);
|
|
0
|
1130
|
|
378
|
1131 ngx_processes[ch.slot].pid = ch.pid;
|
|
|
1132 ngx_processes[ch.slot].channel[0] = ch.fd;
|
|
|
1133 break;
|
|
0
|
1134
|
|
378
|
1135 case NGX_CMD_CLOSE_CHANNEL:
|
|
0
|
1136
|
|
378
|
1137 ngx_log_debug4(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1138 "close channel s:%i pid:%P our:%P fd:%d",
|
|
|
1139 ch.slot, ch.pid, ngx_processes[ch.slot].pid,
|
|
|
1140 ngx_processes[ch.slot].channel[0]);
|
|
0
|
1141
|
|
378
|
1142 if (close(ngx_processes[ch.slot].channel[0]) == -1) {
|
|
|
1143 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
|
|
|
1144 "close() channel failed");
|
|
|
1145 }
|
|
|
1146
|
|
|
1147 ngx_processes[ch.slot].channel[0] = -1;
|
|
|
1148 break;
|
|
0
|
1149 }
|
|
|
1150 }
|
|
|
1151 }
|
|
|
1152
|
|
|
1153
|
|
|
1154 #if (NGX_THREADS)
|
|
|
1155
|
|
50
|
1156 static void
|
|
|
1157 ngx_wakeup_worker_threads(ngx_cycle_t *cycle)
|
|
0
|
1158 {
|
|
|
1159 ngx_int_t i;
|
|
|
1160 ngx_uint_t live;
|
|
|
1161
|
|
|
1162 for ( ;; ) {
|
|
|
1163
|
|
|
1164 live = 0;
|
|
|
1165
|
|
|
1166 for (i = 0; i < ngx_threads_n; i++) {
|
|
|
1167 if (ngx_threads[i].state < NGX_THREAD_EXIT) {
|
|
18
|
1168 if (ngx_cond_signal(ngx_threads[i].cv) == NGX_ERROR) {
|
|
|
1169 ngx_threads[i].state = NGX_THREAD_DONE;
|
|
0
|
1170
|
|
|
1171 } else {
|
|
|
1172 live = 1;
|
|
|
1173 }
|
|
|
1174 }
|
|
|
1175
|
|
|
1176 if (ngx_threads[i].state == NGX_THREAD_EXIT) {
|
|
|
1177 ngx_thread_join(ngx_threads[i].tid, NULL);
|
|
|
1178 ngx_threads[i].state = NGX_THREAD_DONE;
|
|
|
1179 }
|
|
|
1180 }
|
|
|
1181
|
|
|
1182 if (live == 0) {
|
|
|
1183 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
1184 "all worker threads are joined");
|
|
|
1185
|
|
|
1186 /* STUB */
|
|
|
1187 ngx_done_events(cycle);
|
|
|
1188 ngx_mutex_destroy(ngx_event_timer_mutex);
|
|
|
1189 ngx_mutex_destroy(ngx_posted_events_mutex);
|
|
|
1190
|
|
|
1191 return;
|
|
|
1192 }
|
|
|
1193
|
|
|
1194 ngx_sched_yield();
|
|
|
1195 }
|
|
|
1196 }
|
|
|
1197
|
|
|
1198
|
|
112
|
1199 static ngx_thread_value_t
|
|
50
|
1200 ngx_worker_thread_cycle(void *data)
|
|
0
|
1201 {
|
|
|
1202 ngx_thread_t *thr = data;
|
|
|
1203
|
|
|
1204 sigset_t set;
|
|
|
1205 ngx_err_t err;
|
|
|
1206 ngx_core_tls_t *tls;
|
|
|
1207 ngx_cycle_t *cycle;
|
|
|
1208
|
|
|
1209 cycle = (ngx_cycle_t *) ngx_cycle;
|
|
|
1210
|
|
|
1211 sigemptyset(&set);
|
|
|
1212 sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
|
|
|
1213 sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
|
|
|
1214 sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
|
|
|
1215
|
|
|
1216 err = ngx_thread_sigmask(SIG_BLOCK, &set, NULL);
|
|
|
1217 if (err) {
|
|
|
1218 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
1219 ngx_thread_sigmask_n " failed");
|
|
112
|
1220 return (ngx_thread_value_t) 1;
|
|
0
|
1221 }
|
|
|
1222
|
|
|
1223 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
1224 "thread " NGX_TID_T_FMT " started", ngx_thread_self());
|
|
0
|
1225
|
|
|
1226 ngx_setthrtitle("worker thread");
|
|
|
1227
|
|
50
|
1228 tls = ngx_calloc(sizeof(ngx_core_tls_t), cycle->log);
|
|
|
1229 if (tls == NULL) {
|
|
112
|
1230 return (ngx_thread_value_t) 1;
|
|
0
|
1231 }
|
|
|
1232
|
|
|
1233 err = ngx_thread_set_tls(ngx_core_tls_key, tls);
|
|
|
1234 if (err != 0) {
|
|
|
1235 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
1236 ngx_thread_set_tls_n " failed");
|
|
112
|
1237 return (ngx_thread_value_t) 1;
|
|
0
|
1238 }
|
|
|
1239
|
|
112
|
1240 ngx_mutex_lock(ngx_posted_events_mutex);
|
|
0
|
1241
|
|
|
1242 for ( ;; ) {
|
|
|
1243 thr->state = NGX_THREAD_FREE;
|
|
|
1244
|
|
|
1245 if (ngx_cond_wait(thr->cv, ngx_posted_events_mutex) == NGX_ERROR) {
|
|
112
|
1246 return (ngx_thread_value_t) 1;
|
|
0
|
1247 }
|
|
|
1248
|
|
|
1249 if (ngx_terminate) {
|
|
|
1250 thr->state = NGX_THREAD_EXIT;
|
|
|
1251
|
|
|
1252 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
|
1253
|
|
|
1254 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
1255 "thread " NGX_TID_T_FMT " is done",
|
|
|
1256 ngx_thread_self());
|
|
0
|
1257
|
|
112
|
1258 return (ngx_thread_value_t) 0;
|
|
0
|
1259 }
|
|
|
1260
|
|
|
1261 thr->state = NGX_THREAD_BUSY;
|
|
|
1262
|
|
|
1263 if (ngx_event_thread_process_posted(cycle) == NGX_ERROR) {
|
|
112
|
1264 return (ngx_thread_value_t) 1;
|
|
0
|
1265 }
|
|
|
1266
|
|
|
1267 if (ngx_event_thread_process_posted(cycle) == NGX_ERROR) {
|
|
112
|
1268 return (ngx_thread_value_t) 1;
|
|
0
|
1269 }
|
|
|
1270
|
|
|
1271 if (ngx_process_changes) {
|
|
|
1272 if (ngx_process_changes(cycle, 1) == NGX_ERROR) {
|
|
112
|
1273 return (ngx_thread_value_t) 1;
|
|
0
|
1274 }
|
|
|
1275 }
|
|
|
1276 }
|
|
|
1277 }
|
|
|
1278
|
|
|
1279 #endif
|
|
16
|
1280
|
|
|
1281
|
|
50
|
1282 static void
|
|
468
|
1283 ngx_cache_manager_process_cycle(ngx_cycle_t *cycle, void *data)
|
|
16
|
1284 {
|
|
514
|
1285 ngx_cache_manager_ctx_t *ctx = data;
|
|
|
1286
|
|
464
|
1287 void *ident[4];
|
|
|
1288 ngx_event_t ev;
|
|
|
1289
|
|
|
1290 cycle->connection_n = 512;
|
|
16
|
1291
|
|
552
|
1292 ngx_process = NGX_PROCESS_HELPER;
|
|
|
1293
|
|
22
|
1294 ngx_worker_process_init(cycle, 0);
|
|
16
|
1295
|
|
464
|
1296 ngx_close_listening_sockets(cycle);
|
|
16
|
1297
|
|
464
|
1298 ngx_memzero(&ev, sizeof(ngx_event_t));
|
|
514
|
1299 ev.handler = ctx->handler;
|
|
464
|
1300 ev.data = ident;
|
|
|
1301 ev.log = cycle->log;
|
|
|
1302 ident[3] = (void *) -1;
|
|
16
|
1303
|
|
464
|
1304 ngx_use_accept_mutex = 0;
|
|
|
1305
|
|
514
|
1306 ngx_setproctitle(ctx->name);
|
|
464
|
1307
|
|
514
|
1308 ngx_add_timer(&ev, ctx->delay);
|
|
16
|
1309
|
|
|
1310 for ( ;; ) {
|
|
|
1311
|
|
|
1312 if (ngx_terminate || ngx_quit) {
|
|
26
|
1313 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
16
|
1314 exit(0);
|
|
|
1315 }
|
|
|
1316
|
|
|
1317 if (ngx_reopen) {
|
|
|
1318 ngx_reopen = 0;
|
|
26
|
1319 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
|
16
|
1320 ngx_reopen_files(cycle, -1);
|
|
|
1321 }
|
|
|
1322
|
|
112
|
1323 ngx_process_events_and_timers(cycle);
|
|
16
|
1324 }
|
|
|
1325 }
|
|
50
|
1326
|
|
464
|
1327
|
|
|
1328 static void
|
|
468
|
1329 ngx_cache_manager_process_handler(ngx_event_t *ev)
|
|
464
|
1330 {
|
|
|
1331 time_t next, n;
|
|
|
1332 ngx_uint_t i;
|
|
|
1333 ngx_path_t **path;
|
|
|
1334
|
|
|
1335 next = 60 * 60;
|
|
|
1336
|
|
|
1337 path = ngx_cycle->pathes.elts;
|
|
|
1338 for (i = 0; i < ngx_cycle->pathes.nelts; i++) {
|
|
|
1339
|
|
468
|
1340 if (path[i]->manager) {
|
|
|
1341 n = path[i]->manager(path[i]->data);
|
|
464
|
1342
|
|
|
1343 next = (n <= next) ? n : next;
|
|
|
1344
|
|
566
|
1345 ngx_time_update();
|
|
464
|
1346 }
|
|
|
1347 }
|
|
|
1348
|
|
|
1349 if (next == 0) {
|
|
|
1350 next = 1;
|
|
|
1351 }
|
|
|
1352
|
|
|
1353 ngx_add_timer(ev, next * 1000);
|
|
|
1354 }
|
|
514
|
1355
|
|
|
1356
|
|
|
1357 static void
|
|
|
1358 ngx_cache_loader_process_handler(ngx_event_t *ev)
|
|
|
1359 {
|
|
|
1360 ngx_uint_t i;
|
|
|
1361 ngx_path_t **path;
|
|
|
1362 ngx_cycle_t *cycle;
|
|
|
1363
|
|
|
1364 cycle = (ngx_cycle_t *) ngx_cycle;
|
|
|
1365
|
|
|
1366 path = cycle->pathes.elts;
|
|
|
1367 for (i = 0; i < cycle->pathes.nelts; i++) {
|
|
|
1368
|
|
|
1369 if (ngx_terminate || ngx_quit) {
|
|
|
1370 break;
|
|
|
1371 }
|
|
|
1372
|
|
|
1373 if (path[i]->loader) {
|
|
|
1374 path[i]->loader(path[i]->data);
|
|
566
|
1375 ngx_time_update();
|
|
514
|
1376 }
|
|
|
1377 }
|
|
|
1378
|
|
|
1379 exit(0);
|
|
|
1380 }
|
