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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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610
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294 if (ngx_set_environment(cycle, NULL) == NULL) {
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295 /* fatal */
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296 exit(2);
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297 }
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298
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0
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299 for (i = 0; ngx_modules[i]; i++) {
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300 if (ngx_modules[i]->init_process) {
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301 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
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302 /* fatal */
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303 exit(2);
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304 }
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305 }
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306 }
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307
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308 for ( ;; ) {
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309 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
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310
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112
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311 ngx_process_events_and_timers(cycle);
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0
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312
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313 if (ngx_terminate || ngx_quit) {
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120
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314
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315 for (i = 0; ngx_modules[i]; i++) {
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316 if (ngx_modules[i]->exit_process) {
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317 ngx_modules[i]->exit_process(cycle);
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318 }
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319 }
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320
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122
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321 ngx_master_process_exit(cycle);
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0
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322 }
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323
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324 if (ngx_reconfigure) {
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325 ngx_reconfigure = 0;
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26
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326 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
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0
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327
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328 cycle = ngx_init_cycle(cycle);
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329 if (cycle == NULL) {
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330 cycle = (ngx_cycle_t *) ngx_cycle;
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331 continue;
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332 }
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333
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334 ngx_cycle = cycle;
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335 }
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336
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337 if (ngx_reopen) {
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338 ngx_reopen = 0;
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26
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339 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
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0
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340 ngx_reopen_files(cycle, (ngx_uid_t) -1);
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341 }
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342 }
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343 }
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344
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345
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50
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346 static void
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347 ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t n, ngx_int_t type)
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0
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348 {
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514
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349 ngx_int_t i;
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106
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350 ngx_channel_t ch;
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0
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351
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26
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352 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start worker processes");
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0
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353
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354 ch.command = NGX_CMD_OPEN_CHANNEL;
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355
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126
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356 for (i = 0; i < n; i++) {
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357
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358 cpu_affinity = ngx_get_cpu_affinity(i);
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359
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0
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360 ngx_spawn_process(cycle, ngx_worker_process_cycle, NULL,
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361 "worker process", type);
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362
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363 ch.pid = ngx_processes[ngx_process_slot].pid;
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364 ch.slot = ngx_process_slot;
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365 ch.fd = ngx_processes[ngx_process_slot].channel[0];
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366
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514
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367 ngx_pass_open_channel(cycle, &ch);
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0
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368 }
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369 }
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370
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371
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50
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372 static void
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514
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373 ngx_start_cache_manager_processes(ngx_cycle_t *cycle, ngx_uint_t respawn)
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16
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374 {
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514
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375 ngx_uint_t i, manager, loader;
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464
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376 ngx_path_t **path;
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377 ngx_channel_t ch;
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16
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378
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514
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379 manager = 0;
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380 loader = 0;
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381
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464
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382 path = ngx_cycle->pathes.elts;
|
|
514
|
383 for (i = 0; i < ngx_cycle->pathes.nelts; i++) {
|
|
|
384
|
|
|
385 if (path[i]->manager) {
|
|
|
386 manager = 1;
|
|
|
387 }
|
|
|
388
|
|
|
389 if (path[i]->loader) {
|
|
|
390 loader = 1;
|
|
464
|
391 }
|
|
|
392 }
|
|
|
393
|
|
514
|
394 if (manager == 0) {
|
|
|
395 return;
|
|
|
396 }
|
|
464
|
397
|
|
514
|
398 ngx_spawn_process(cycle, ngx_cache_manager_process_cycle,
|
|
|
399 &ngx_cache_manager_ctx, "cache manager process",
|
|
|
400 respawn ? NGX_PROCESS_JUST_RESPAWN : NGX_PROCESS_RESPAWN);
|
|
16
|
401
|
|
|
402 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
|
403 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
|
404 ch.slot = ngx_process_slot;
|
|
|
405 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
|
406
|
|
514
|
407 ngx_pass_open_channel(cycle, &ch);
|
|
|
408
|
|
|
409 if (loader == 0) {
|
|
|
410 return;
|
|
|
411 }
|
|
|
412
|
|
|
413 ngx_spawn_process(cycle, ngx_cache_manager_process_cycle,
|
|
|
414 &ngx_cache_loader_ctx, "cache loader process",
|
|
|
415 respawn ? NGX_PROCESS_JUST_SPAWN : NGX_PROCESS_NORESPAWN);
|
|
|
416
|
|
|
417 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
|
418 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
|
419 ch.slot = ngx_process_slot;
|
|
|
420 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
|
421
|
|
|
422 ngx_pass_open_channel(cycle, &ch);
|
|
|
423 }
|
|
|
424
|
|
|
425
|
|
|
426 static void
|
|
|
427 ngx_pass_open_channel(ngx_cycle_t *cycle, ngx_channel_t *ch)
|
|
|
428 {
|
|
|
429 ngx_int_t i;
|
|
|
430
|
|
16
|
431 for (i = 0; i < ngx_last_process; i++) {
|
|
|
432
|
|
|
433 if (i == ngx_process_slot
|
|
|
434 || ngx_processes[i].pid == -1
|
|
|
435 || ngx_processes[i].channel[0] == -1)
|
|
|
436 {
|
|
|
437 continue;
|
|
|
438 }
|
|
|
439
|
|
|
440 ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
441 "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",
|
|
514
|
442 ch->slot, ch->pid, ch->fd,
|
|
16
|
443 i, ngx_processes[i].pid,
|
|
|
444 ngx_processes[i].channel[0]);
|
|
|
445
|
|
|
446 /* TODO: NGX_AGAIN */
|
|
|
447
|
|
|
448 ngx_write_channel(ngx_processes[i].channel[0],
|
|
514
|
449 ch, sizeof(ngx_channel_t), cycle->log);
|
|
16
|
450 }
|
|
|
451 }
|
|
|
452
|
|
|
453
|
|
50
|
454 static void
|
|
|
455 ngx_signal_worker_processes(ngx_cycle_t *cycle, int signo)
|
|
0
|
456 {
|
|
|
457 ngx_int_t i;
|
|
|
458 ngx_err_t err;
|
|
|
459 ngx_channel_t ch;
|
|
|
460
|
|
342
|
461 #if (NGX_BROKEN_SCM_RIGHTS)
|
|
|
462
|
|
|
463 ch.command = 0;
|
|
|
464
|
|
|
465 #else
|
|
|
466
|
|
0
|
467 switch (signo) {
|
|
|
468
|
|
|
469 case ngx_signal_value(NGX_SHUTDOWN_SIGNAL):
|
|
|
470 ch.command = NGX_CMD_QUIT;
|
|
|
471 break;
|
|
|
472
|
|
|
473 case ngx_signal_value(NGX_TERMINATE_SIGNAL):
|
|
|
474 ch.command = NGX_CMD_TERMINATE;
|
|
|
475 break;
|
|
|
476
|
|
|
477 case ngx_signal_value(NGX_REOPEN_SIGNAL):
|
|
|
478 ch.command = NGX_CMD_REOPEN;
|
|
|
479 break;
|
|
|
480
|
|
|
481 default:
|
|
|
482 ch.command = 0;
|
|
|
483 }
|
|
|
484
|
|
342
|
485 #endif
|
|
|
486
|
|
0
|
487 ch.fd = -1;
|
|
|
488
|
|
|
489
|
|
|
490 for (i = 0; i < ngx_last_process; i++) {
|
|
|
491
|
|
|
492 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
493 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
|
0
|
494 i,
|
|
|
495 ngx_processes[i].pid,
|
|
|
496 ngx_processes[i].exiting,
|
|
|
497 ngx_processes[i].exited,
|
|
|
498 ngx_processes[i].detached,
|
|
|
499 ngx_processes[i].respawn,
|
|
514
|
500 ngx_processes[i].just_spawn);
|
|
0
|
501
|
|
|
502 if (ngx_processes[i].detached || ngx_processes[i].pid == -1) {
|
|
|
503 continue;
|
|
|
504 }
|
|
|
505
|
|
514
|
506 if (ngx_processes[i].just_spawn) {
|
|
|
507 ngx_processes[i].just_spawn = 0;
|
|
0
|
508 continue;
|
|
|
509 }
|
|
|
510
|
|
|
511 if (ngx_processes[i].exiting
|
|
|
512 && signo == ngx_signal_value(NGX_SHUTDOWN_SIGNAL))
|
|
|
513 {
|
|
|
514 continue;
|
|
|
515 }
|
|
|
516
|
|
|
517 if (ch.command) {
|
|
|
518 if (ngx_write_channel(ngx_processes[i].channel[0],
|
|
290
|
519 &ch, sizeof(ngx_channel_t), cycle->log)
|
|
|
520 == NGX_OK)
|
|
0
|
521 {
|
|
|
522 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
|
523 ngx_processes[i].exiting = 1;
|
|
|
524 }
|
|
|
525
|
|
|
526 continue;
|
|
|
527 }
|
|
|
528 }
|
|
|
529
|
|
|
530 ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
531 "kill (%P, %d)" , ngx_processes[i].pid, signo);
|
|
0
|
532
|
|
|
533 if (kill(ngx_processes[i].pid, signo) == -1) {
|
|
|
534 err = ngx_errno;
|
|
|
535 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
518
|
536 "kill(%P, %d) failed", ngx_processes[i].pid, signo);
|
|
0
|
537
|
|
|
538 if (err == NGX_ESRCH) {
|
|
|
539 ngx_processes[i].exited = 1;
|
|
|
540 ngx_processes[i].exiting = 0;
|
|
|
541 ngx_reap = 1;
|
|
|
542 }
|
|
|
543
|
|
|
544 continue;
|
|
|
545 }
|
|
|
546
|
|
|
547 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
|
548 ngx_processes[i].exiting = 1;
|
|
|
549 }
|
|
|
550 }
|
|
|
551 }
|
|
|
552
|
|
|
553
|
|
50
|
554 static ngx_uint_t
|
|
340
|
555 ngx_reap_children(ngx_cycle_t *cycle)
|
|
0
|
556 {
|
|
92
|
557 ngx_int_t i, n;
|
|
|
558 ngx_uint_t live;
|
|
|
559 ngx_channel_t ch;
|
|
|
560 ngx_core_conf_t *ccf;
|
|
0
|
561
|
|
|
562 ch.command = NGX_CMD_CLOSE_CHANNEL;
|
|
|
563 ch.fd = -1;
|
|
|
564
|
|
|
565 live = 0;
|
|
|
566 for (i = 0; i < ngx_last_process; i++) {
|
|
|
567
|
|
|
568 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
569 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
|
0
|
570 i,
|
|
|
571 ngx_processes[i].pid,
|
|
|
572 ngx_processes[i].exiting,
|
|
|
573 ngx_processes[i].exited,
|
|
|
574 ngx_processes[i].detached,
|
|
|
575 ngx_processes[i].respawn,
|
|
514
|
576 ngx_processes[i].just_spawn);
|
|
0
|
577
|
|
|
578 if (ngx_processes[i].pid == -1) {
|
|
|
579 continue;
|
|
|
580 }
|
|
|
581
|
|
|
582 if (ngx_processes[i].exited) {
|
|
|
583
|
|
|
584 if (!ngx_processes[i].detached) {
|
|
|
585 ngx_close_channel(ngx_processes[i].channel, cycle->log);
|
|
|
586
|
|
|
587 ngx_processes[i].channel[0] = -1;
|
|
|
588 ngx_processes[i].channel[1] = -1;
|
|
|
589
|
|
|
590 ch.pid = ngx_processes[i].pid;
|
|
|
591 ch.slot = i;
|
|
|
592
|
|
|
593 for (n = 0; n < ngx_last_process; n++) {
|
|
|
594 if (ngx_processes[n].exited
|
|
|
595 || ngx_processes[n].pid == -1
|
|
|
596 || ngx_processes[n].channel[0] == -1)
|
|
|
597 {
|
|
|
598 continue;
|
|
|
599 }
|
|
|
600
|
|
|
601 ngx_log_debug3(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
602 "pass close channel s:%i pid:%P to:%P",
|
|
|
603 ch.slot, ch.pid, ngx_processes[n].pid);
|
|
0
|
604
|
|
|
605 /* TODO: NGX_AGAIN */
|
|
|
606
|
|
|
607 ngx_write_channel(ngx_processes[n].channel[0],
|
|
|
608 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
|
609 }
|
|
|
610 }
|
|
|
611
|
|
|
612 if (ngx_processes[i].respawn
|
|
|
613 && !ngx_processes[i].exiting
|
|
|
614 && !ngx_terminate
|
|
|
615 && !ngx_quit)
|
|
|
616 {
|
|
|
617 if (ngx_spawn_process(cycle, ngx_processes[i].proc,
|
|
|
618 ngx_processes[i].data,
|
|
|
619 ngx_processes[i].name, i)
|
|
92
|
620 == NGX_INVALID_PID)
|
|
0
|
621 {
|
|
|
622 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
640
|
623 "could not respawn %s",
|
|
|
624 ngx_processes[i].name);
|
|
0
|
625 continue;
|
|
|
626 }
|
|
|
627
|
|
22
|
628
|
|
|
629 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
|
630 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
|
631 ch.slot = ngx_process_slot;
|
|
|
632 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
|
633
|
|
514
|
634 ngx_pass_open_channel(cycle, &ch);
|
|
22
|
635
|
|
0
|
636 live = 1;
|
|
|
637
|
|
|
638 continue;
|
|
|
639 }
|
|
|
640
|
|
|
641 if (ngx_processes[i].pid == ngx_new_binary) {
|
|
92
|
642
|
|
|
643 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
|
|
|
644 ngx_core_module);
|
|
|
645
|
|
|
646 if (ngx_rename_file((char *) ccf->oldpid.data,
|
|
|
647 (char *) ccf->pid.data)
|
|
|
648 != NGX_OK)
|
|
|
649 {
|
|
|
650 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
651 ngx_rename_file_n " %s back to %s failed "
|
|
|
652 "after the new binary process \"%s\" exited",
|
|
|
653 ccf->oldpid.data, ccf->pid.data, ngx_argv[0]);
|
|
|
654 }
|
|
|
655
|
|
0
|
656 ngx_new_binary = 0;
|
|
|
657 if (ngx_noaccepting) {
|
|
|
658 ngx_restart = 1;
|
|
|
659 ngx_noaccepting = 0;
|
|
|
660 }
|
|
|
661 }
|
|
|
662
|
|
|
663 if (i == ngx_last_process - 1) {
|
|
|
664 ngx_last_process--;
|
|
|
665
|
|
|
666 } else {
|
|
|
667 ngx_processes[i].pid = -1;
|
|
|
668 }
|
|
|
669
|
|
|
670 } else if (ngx_processes[i].exiting || !ngx_processes[i].detached) {
|
|
|
671 live = 1;
|
|
|
672 }
|
|
|
673 }
|
|
|
674
|
|
|
675 return live;
|
|
|
676 }
|
|
|
677
|
|
|
678
|
|
50
|
679 static void
|
|
122
|
680 ngx_master_process_exit(ngx_cycle_t *cycle)
|
|
0
|
681 {
|
|
120
|
682 ngx_uint_t i;
|
|
|
683
|
|
0
|
684 ngx_delete_pidfile(cycle);
|
|
|
685
|
|
26
|
686 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit");
|
|
0
|
687
|
|
120
|
688 for (i = 0; ngx_modules[i]; i++) {
|
|
|
689 if (ngx_modules[i]->exit_master) {
|
|
|
690 ngx_modules[i]->exit_master(cycle);
|
|
|
691 }
|
|
|
692 }
|
|
|
693
|
|
538
|
694 ngx_close_listening_sockets(cycle);
|
|
|
695
|
|
54
|
696 /*
|
|
332
|
697 * Copy ngx_cycle->log related data to the special static exit cycle,
|
|
|
698 * log, and log file structures enough to allow a signal handler to log.
|
|
|
699 * The handler may be called when standard ngx_cycle->log allocated from
|
|
|
700 * ngx_cycle->pool is already destroyed.
|
|
54
|
701 */
|
|
|
702
|
|
332
|
703 ngx_exit_log_file.fd = ngx_cycle->log->file->fd;
|
|
|
704
|
|
|
705 ngx_exit_log = *ngx_cycle->log;
|
|
|
706 ngx_exit_log.file = &ngx_exit_log_file;
|
|
|
707
|
|
|
708 ngx_exit_cycle.log = &ngx_exit_log;
|
|
|
709 ngx_cycle = &ngx_exit_cycle;
|
|
|
710
|
|
0
|
711 ngx_destroy_pool(cycle->pool);
|
|
|
712
|
|
|
713 exit(0);
|
|
|
714 }
|
|
|
715
|
|
|
716
|
|
50
|
717 static void
|
|
|
718 ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data)
|
|
0
|
719 {
|
|
290
|
720 ngx_uint_t i;
|
|
|
721 ngx_connection_t *c;
|
|
18
|
722
|
|
552
|
723 ngx_process = NGX_PROCESS_WORKER;
|
|
|
724
|
|
22
|
725 ngx_worker_process_init(cycle, 1);
|
|
0
|
726
|
|
|
727 ngx_setproctitle("worker process");
|
|
|
728
|
|
|
729 #if (NGX_THREADS)
|
|
356
|
730 {
|
|
|
731 ngx_int_t n;
|
|
|
732 ngx_err_t err;
|
|
|
733 ngx_core_conf_t *ccf;
|
|
0
|
734
|
|
18
|
735 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
736
|
|
0
|
737 if (ngx_threads_n) {
|
|
290
|
738 if (ngx_init_threads(ngx_threads_n, ccf->thread_stack_size, cycle)
|
|
|
739 == NGX_ERROR)
|
|
0
|
740 {
|
|
|
741 /* fatal */
|
|
|
742 exit(2);
|
|
|
743 }
|
|
|
744
|
|
|
745 err = ngx_thread_key_create(&ngx_core_tls_key);
|
|
|
746 if (err != 0) {
|
|
|
747 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
748 ngx_thread_key_create_n " failed");
|
|
|
749 /* fatal */
|
|
|
750 exit(2);
|
|
|
751 }
|
|
|
752
|
|
|
753 for (n = 0; n < ngx_threads_n; n++) {
|
|
|
754
|
|
50
|
755 ngx_threads[n].cv = ngx_cond_init(cycle->log);
|
|
|
756
|
|
|
757 if (ngx_threads[n].cv == NULL) {
|
|
0
|
758 /* fatal */
|
|
|
759 exit(2);
|
|
|
760 }
|
|
|
761
|
|
|
762 if (ngx_create_thread((ngx_tid_t *) &ngx_threads[n].tid,
|
|
|
763 ngx_worker_thread_cycle,
|
|
290
|
764 (void *) &ngx_threads[n], cycle->log)
|
|
|
765 != 0)
|
|
0
|
766 {
|
|
|
767 /* fatal */
|
|
|
768 exit(2);
|
|
|
769 }
|
|
|
770 }
|
|
|
771 }
|
|
356
|
772 }
|
|
0
|
773 #endif
|
|
|
774
|
|
|
775 for ( ;; ) {
|
|
290
|
776
|
|
|
777 if (ngx_exiting) {
|
|
|
778
|
|
|
779 c = cycle->connections;
|
|
|
780
|
|
|
781 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
782
|
|
|
783 /* THREAD: lock */
|
|
0
|
784
|
|
290
|
785 if (c[i].fd != -1 && c[i].idle) {
|
|
|
786 c[i].close = 1;
|
|
|
787 c[i].read->handler(c[i].read);
|
|
|
788 }
|
|
|
789 }
|
|
|
790
|
|
|
791 if (ngx_event_timer_rbtree.root == ngx_event_timer_rbtree.sentinel)
|
|
|
792 {
|
|
|
793 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
|
794
|
|
|
795 ngx_worker_process_exit(cycle);
|
|
|
796 }
|
|
0
|
797 }
|
|
|
798
|
|
|
799 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
|
|
|
800
|
|
112
|
801 ngx_process_events_and_timers(cycle);
|
|
0
|
802
|
|
|
803 if (ngx_terminate) {
|
|
26
|
804 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
0
|
805
|
|
122
|
806 ngx_worker_process_exit(cycle);
|
|
0
|
807 }
|
|
|
808
|
|
|
809 if (ngx_quit) {
|
|
|
810 ngx_quit = 0;
|
|
26
|
811 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
0
|
812 "gracefully shutting down");
|
|
|
813 ngx_setproctitle("worker process is shutting down");
|
|
|
814
|
|
|
815 if (!ngx_exiting) {
|
|
|
816 ngx_close_listening_sockets(cycle);
|
|
|
817 ngx_exiting = 1;
|
|
|
818 }
|
|
|
819 }
|
|
|
820
|
|
|
821 if (ngx_reopen) {
|
|
|
822 ngx_reopen = 0;
|
|
26
|
823 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
|
0
|
824 ngx_reopen_files(cycle, -1);
|
|
|
825 }
|
|
|
826 }
|
|
|
827 }
|
|
|
828
|
|
|
829
|
|
50
|
830 static void
|
|
|
831 ngx_worker_process_init(ngx_cycle_t *cycle, ngx_uint_t priority)
|
|
16
|
832 {
|
|
278
|
833 sigset_t set;
|
|
|
834 ngx_int_t n;
|
|
|
835 ngx_uint_t i;
|
|
|
836 struct rlimit rlmt;
|
|
|
837 ngx_core_conf_t *ccf;
|
|
|
838 ngx_listening_t *ls;
|
|
16
|
839
|
|
278
|
840 if (ngx_set_environment(cycle, NULL) == NULL) {
|
|
|
841 /* fatal */
|
|
|
842 exit(2);
|
|
|
843 }
|
|
|
844
|
|
16
|
845 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
846
|
|
328
|
847 if (priority && ccf->priority != 0) {
|
|
|
848 if (setpriority(PRIO_PROCESS, 0, ccf->priority) == -1) {
|
|
|
849 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
850 "setpriority(%d) failed", ccf->priority);
|
|
22
|
851 }
|
|
328
|
852 }
|
|
22
|
853
|
|
328
|
854 if (ccf->rlimit_nofile != NGX_CONF_UNSET) {
|
|
|
855 rlmt.rlim_cur = (rlim_t) ccf->rlimit_nofile;
|
|
|
856 rlmt.rlim_max = (rlim_t) ccf->rlimit_nofile;
|
|
92
|
857
|
|
328
|
858 if (setrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
|
|
|
859 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
860 "setrlimit(RLIMIT_NOFILE, %i) failed",
|
|
|
861 ccf->rlimit_nofile);
|
|
92
|
862 }
|
|
328
|
863 }
|
|
92
|
864
|
|
598
|
865 if (ccf->rlimit_core != NGX_CONF_UNSET) {
|
|
328
|
866 rlmt.rlim_cur = (rlim_t) ccf->rlimit_core;
|
|
|
867 rlmt.rlim_max = (rlim_t) ccf->rlimit_core;
|
|
138
|
868
|
|
328
|
869 if (setrlimit(RLIMIT_CORE, &rlmt) == -1) {
|
|
|
870 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
598
|
871 "setrlimit(RLIMIT_CORE, %O) failed",
|
|
328
|
872 ccf->rlimit_core);
|
|
138
|
873 }
|
|
328
|
874 }
|
|
138
|
875
|
|
92
|
876 #ifdef RLIMIT_SIGPENDING
|
|
328
|
877 if (ccf->rlimit_sigpending != NGX_CONF_UNSET) {
|
|
|
878 rlmt.rlim_cur = (rlim_t) ccf->rlimit_sigpending;
|
|
|
879 rlmt.rlim_max = (rlim_t) ccf->rlimit_sigpending;
|
|
92
|
880
|
|
328
|
881 if (setrlimit(RLIMIT_SIGPENDING, &rlmt) == -1) {
|
|
|
882 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
883 "setrlimit(RLIMIT_SIGPENDING, %i) failed",
|
|
|
884 ccf->rlimit_sigpending);
|
|
92
|
885 }
|
|
328
|
886 }
|
|
92
|
887 #endif
|
|
|
888
|
|
328
|
889 if (geteuid() == 0) {
|
|
16
|
890 if (setgid(ccf->group) == -1) {
|
|
|
891 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
892 "setgid(%d) failed", ccf->group);
|
|
|
893 /* fatal */
|
|
|
894 exit(2);
|
|
|
895 }
|
|
|
896
|
|
22
|
897 if (initgroups(ccf->username, ccf->group) == -1) {
|
|
|
898 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
899 "initgroups(%s, %d) failed",
|
|
|
900 ccf->username, ccf->group);
|
|
|
901 }
|
|
|
902
|
|
16
|
903 if (setuid(ccf->user) == -1) {
|
|
|
904 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
905 "setuid(%d) failed", ccf->user);
|
|
|
906 /* fatal */
|
|
|
907 exit(2);
|
|
|
908 }
|
|
|
909 }
|
|
|
910
|
|
126
|
911 #if (NGX_HAVE_SCHED_SETAFFINITY)
|
|
|
912
|
|
|
913 if (cpu_affinity) {
|
|
|
914 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
|
915 "sched_setaffinity(0x%08Xl)", cpu_affinity);
|
|
|
916
|
|
|
917 if (sched_setaffinity(0, 32, (cpu_set_t *) &cpu_affinity) == -1) {
|
|
|
918 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
919 "sched_setaffinity(0x%08Xl) failed", cpu_affinity);
|
|
|
920 }
|
|
|
921 }
|
|
|
922
|
|
|
923 #endif
|
|
|
924
|
|
16
|
925 #if (NGX_HAVE_PR_SET_DUMPABLE)
|
|
|
926
|
|
|
927 /* allow coredump after setuid() in Linux 2.4.x */
|
|
|
928
|
|
|
929 if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1) {
|
|
|
930 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
931 "prctl(PR_SET_DUMPABLE) failed");
|
|
|
932 }
|
|
|
933
|
|
|
934 #endif
|
|
|
935
|
|
70
|
936 if (ccf->working_directory.len) {
|
|
72
|
937 if (chdir((char *) ccf->working_directory.data) == -1) {
|
|
70
|
938 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
939 "chdir(\"%s\") failed", ccf->working_directory.data);
|
|
|
940 /* fatal */
|
|
|
941 exit(2);
|
|
|
942 }
|
|
|
943 }
|
|
|
944
|
|
16
|
945 sigemptyset(&set);
|
|
|
946
|
|
|
947 if (sigprocmask(SIG_SETMASK, &set, NULL) == -1) {
|
|
|
948 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
949 "sigprocmask() failed");
|
|
|
950 }
|
|
|
951
|
|
|
952 /*
|
|
|
953 * disable deleting previous events for the listening sockets because
|
|
|
954 * in the worker processes there are no events at all at this point
|
|
126
|
955 */
|
|
16
|
956 ls = cycle->listening.elts;
|
|
|
957 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
92
|
958 ls[i].previous = NULL;
|
|
16
|
959 }
|
|
|
960
|
|
|
961 for (i = 0; ngx_modules[i]; i++) {
|
|
|
962 if (ngx_modules[i]->init_process) {
|
|
|
963 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
|
|
|
964 /* fatal */
|
|
|
965 exit(2);
|
|
|
966 }
|
|
|
967 }
|
|
|
968 }
|
|
|
969
|
|
|
970 for (n = 0; n < ngx_last_process; n++) {
|
|
|
971
|
|
|
972 if (ngx_processes[n].pid == -1) {
|
|
|
973 continue;
|
|
|
974 }
|
|
|
975
|
|
|
976 if (n == ngx_process_slot) {
|
|
|
977 continue;
|
|
|
978 }
|
|
|
979
|
|
|
980 if (ngx_processes[n].channel[1] == -1) {
|
|
|
981 continue;
|
|
|
982 }
|
|
|
983
|
|
|
984 if (close(ngx_processes[n].channel[1]) == -1) {
|
|
|
985 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
986 "close() channel failed");
|
|
|
987 }
|
|
|
988 }
|
|
|
989
|
|
|
990 if (close(ngx_processes[ngx_process_slot].channel[0]) == -1) {
|
|
|
991 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
992 "close() channel failed");
|
|
|
993 }
|
|
|
994
|
|
|
995 #if 0
|
|
|
996 ngx_last_process = 0;
|
|
|
997 #endif
|
|
|
998
|
|
|
999 if (ngx_add_channel_event(cycle, ngx_channel, NGX_READ_EVENT,
|
|
290
|
1000 ngx_channel_handler)
|
|
|
1001 == NGX_ERROR)
|
|
16
|
1002 {
|
|
|
1003 /* fatal */
|
|
|
1004 exit(2);
|
|
|
1005 }
|
|
|
1006 }
|
|
|
1007
|
|
|
1008
|
|
50
|
1009 static void
|
|
122
|
1010 ngx_worker_process_exit(ngx_cycle_t *cycle)
|
|
|
1011 {
|
|
|
1012 ngx_uint_t i;
|
|
|
1013 ngx_connection_t *c;
|
|
|
1014
|
|
|
1015 #if (NGX_THREADS)
|
|
|
1016 ngx_terminate = 1;
|
|
|
1017
|
|
|
1018 ngx_wakeup_worker_threads(cycle);
|
|
|
1019 #endif
|
|
|
1020
|
|
|
1021 for (i = 0; ngx_modules[i]; i++) {
|
|
|
1022 if (ngx_modules[i]->exit_process) {
|
|
|
1023 ngx_modules[i]->exit_process(cycle);
|
|
|
1024 }
|
|
|
1025 }
|
|
|
1026
|
|
366
|
1027 if (ngx_exiting) {
|
|
136
|
1028 c = cycle->connections;
|
|
|
1029 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
1030 if (c[i].fd != -1
|
|
|
1031 && c[i].read
|
|
|
1032 && !c[i].read->accept
|
|
366
|
1033 && !c[i].read->channel
|
|
|
1034 && !c[i].read->resolver)
|
|
136
|
1035 {
|
|
|
1036 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
514
|
1037 "open socket #%d left in connection %ui",
|
|
|
1038 c[i].fd, i);
|
|
|
1039 ngx_debug_quit = 1;
|
|
136
|
1040 }
|
|
122
|
1041 }
|
|
|
1042
|
|
136
|
1043 if (ngx_debug_quit) {
|
|
514
|
1044 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, "aborting");
|
|
136
|
1045 ngx_debug_point();
|
|
|
1046 }
|
|
122
|
1047 }
|
|
|
1048
|
|
|
1049 /*
|
|
332
|
1050 * Copy ngx_cycle->log related data to the special static exit cycle,
|
|
|
1051 * log, and log file structures enough to allow a signal handler to log.
|
|
|
1052 * The handler may be called when standard ngx_cycle->log allocated from
|
|
|
1053 * ngx_cycle->pool is already destroyed.
|
|
122
|
1054 */
|
|
|
1055
|
|
332
|
1056 ngx_exit_log_file.fd = ngx_cycle->log->file->fd;
|
|
|
1057
|
|
|
1058 ngx_exit_log = *ngx_cycle->log;
|
|
|
1059 ngx_exit_log.file = &ngx_exit_log_file;
|
|
|
1060
|
|
|
1061 ngx_exit_cycle.log = &ngx_exit_log;
|
|
|
1062 ngx_cycle = &ngx_exit_cycle;
|
|
|
1063
|
|
122
|
1064 ngx_destroy_pool(cycle->pool);
|
|
332
|
1065
|
|
|
1066 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, "exit");
|
|
122
|
1067
|
|
|
1068 exit(0);
|
|
|
1069 }
|
|
|
1070
|
|
|
1071
|
|
|
1072 static void
|
|
50
|
1073 ngx_channel_handler(ngx_event_t *ev)
|
|
0
|
1074 {
|
|
|
1075 ngx_int_t n;
|
|
|
1076 ngx_channel_t ch;
|
|
|
1077 ngx_connection_t *c;
|
|
|
1078
|
|
16
|
1079 if (ev->timedout) {
|
|
|
1080 ev->timedout = 0;
|
|
|
1081 return;
|
|
|
1082 }
|
|
|
1083
|
|
0
|
1084 c = ev->data;
|
|
|
1085
|
|
|
1086 ngx_log_debug0(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel handler");
|
|
|
1087
|
|
378
|
1088 for ( ;; ) {
|
|
0
|
1089
|
|
378
|
1090 n = ngx_read_channel(c->fd, &ch, sizeof(ngx_channel_t), ev->log);
|
|
|
1091
|
|
|
1092 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel: %i", n);
|
|
0
|
1093
|
|
378
|
1094 if (n == NGX_ERROR) {
|
|
366
|
1095
|
|
378
|
1096 if (ngx_event_flags & NGX_USE_EPOLL_EVENT) {
|
|
|
1097 ngx_del_conn(c, 0);
|
|
|
1098 }
|
|
|
1099
|
|
|
1100 ngx_close_connection(c);
|
|
|
1101 return;
|
|
366
|
1102 }
|
|
|
1103
|
|
378
|
1104 if (ngx_event_flags & NGX_USE_EVENTPORT_EVENT) {
|
|
|
1105 if (ngx_add_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
1106 return;
|
|
|
1107 }
|
|
|
1108 }
|
|
10
|
1109
|
|
378
|
1110 if (n == NGX_AGAIN) {
|
|
290
|
1111 return;
|
|
|
1112 }
|
|
378
|
1113
|
|
|
1114 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1115 "channel command: %d", ch.command);
|
|
290
|
1116
|
|
378
|
1117 switch (ch.command) {
|
|
0
|
1118
|
|
378
|
1119 case NGX_CMD_QUIT:
|
|
|
1120 ngx_quit = 1;
|
|
|
1121 break;
|
|
0
|
1122
|
|
378
|
1123 case NGX_CMD_TERMINATE:
|
|
|
1124 ngx_terminate = 1;
|
|
|
1125 break;
|
|
0
|
1126
|
|
378
|
1127 case NGX_CMD_REOPEN:
|
|
|
1128 ngx_reopen = 1;
|
|
|
1129 break;
|
|
0
|
1130
|
|
378
|
1131 case NGX_CMD_OPEN_CHANNEL:
|
|
0
|
1132
|
|
378
|
1133 ngx_log_debug3(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1134 "get channel s:%i pid:%P fd:%d",
|
|
|
1135 ch.slot, ch.pid, ch.fd);
|
|
0
|
1136
|
|
378
|
1137 ngx_processes[ch.slot].pid = ch.pid;
|
|
|
1138 ngx_processes[ch.slot].channel[0] = ch.fd;
|
|
|
1139 break;
|
|
0
|
1140
|
|
378
|
1141 case NGX_CMD_CLOSE_CHANNEL:
|
|
0
|
1142
|
|
378
|
1143 ngx_log_debug4(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1144 "close channel s:%i pid:%P our:%P fd:%d",
|
|
|
1145 ch.slot, ch.pid, ngx_processes[ch.slot].pid,
|
|
|
1146 ngx_processes[ch.slot].channel[0]);
|
|
0
|
1147
|
|
378
|
1148 if (close(ngx_processes[ch.slot].channel[0]) == -1) {
|
|
|
1149 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
|
|
|
1150 "close() channel failed");
|
|
|
1151 }
|
|
|
1152
|
|
|
1153 ngx_processes[ch.slot].channel[0] = -1;
|
|
|
1154 break;
|
|
0
|
1155 }
|
|
|
1156 }
|
|
|
1157 }
|
|
|
1158
|
|
|
1159
|
|
|
1160 #if (NGX_THREADS)
|
|
|
1161
|
|
50
|
1162 static void
|
|
|
1163 ngx_wakeup_worker_threads(ngx_cycle_t *cycle)
|
|
0
|
1164 {
|
|
|
1165 ngx_int_t i;
|
|
|
1166 ngx_uint_t live;
|
|
|
1167
|
|
|
1168 for ( ;; ) {
|
|
|
1169
|
|
|
1170 live = 0;
|
|
|
1171
|
|
|
1172 for (i = 0; i < ngx_threads_n; i++) {
|
|
|
1173 if (ngx_threads[i].state < NGX_THREAD_EXIT) {
|
|
18
|
1174 if (ngx_cond_signal(ngx_threads[i].cv) == NGX_ERROR) {
|
|
|
1175 ngx_threads[i].state = NGX_THREAD_DONE;
|
|
0
|
1176
|
|
|
1177 } else {
|
|
|
1178 live = 1;
|
|
|
1179 }
|
|
|
1180 }
|
|
|
1181
|
|
|
1182 if (ngx_threads[i].state == NGX_THREAD_EXIT) {
|
|
|
1183 ngx_thread_join(ngx_threads[i].tid, NULL);
|
|
|
1184 ngx_threads[i].state = NGX_THREAD_DONE;
|
|
|
1185 }
|
|
|
1186 }
|
|
|
1187
|
|
|
1188 if (live == 0) {
|
|
|
1189 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
1190 "all worker threads are joined");
|
|
|
1191
|
|
|
1192 /* STUB */
|
|
|
1193 ngx_done_events(cycle);
|
|
|
1194 ngx_mutex_destroy(ngx_event_timer_mutex);
|
|
|
1195 ngx_mutex_destroy(ngx_posted_events_mutex);
|
|
|
1196
|
|
|
1197 return;
|
|
|
1198 }
|
|
|
1199
|
|
|
1200 ngx_sched_yield();
|
|
|
1201 }
|
|
|
1202 }
|
|
|
1203
|
|
|
1204
|
|
112
|
1205 static ngx_thread_value_t
|
|
50
|
1206 ngx_worker_thread_cycle(void *data)
|
|
0
|
1207 {
|
|
|
1208 ngx_thread_t *thr = data;
|
|
|
1209
|
|
|
1210 sigset_t set;
|
|
|
1211 ngx_err_t err;
|
|
|
1212 ngx_core_tls_t *tls;
|
|
|
1213 ngx_cycle_t *cycle;
|
|
|
1214
|
|
|
1215 cycle = (ngx_cycle_t *) ngx_cycle;
|
|
|
1216
|
|
|
1217 sigemptyset(&set);
|
|
|
1218 sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
|
|
|
1219 sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
|
|
|
1220 sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
|
|
|
1221
|
|
|
1222 err = ngx_thread_sigmask(SIG_BLOCK, &set, NULL);
|
|
|
1223 if (err) {
|
|
|
1224 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
1225 ngx_thread_sigmask_n " failed");
|
|
112
|
1226 return (ngx_thread_value_t) 1;
|
|
0
|
1227 }
|
|
|
1228
|
|
|
1229 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
1230 "thread " NGX_TID_T_FMT " started", ngx_thread_self());
|
|
0
|
1231
|
|
|
1232 ngx_setthrtitle("worker thread");
|
|
|
1233
|
|
50
|
1234 tls = ngx_calloc(sizeof(ngx_core_tls_t), cycle->log);
|
|
|
1235 if (tls == NULL) {
|
|
112
|
1236 return (ngx_thread_value_t) 1;
|
|
0
|
1237 }
|
|
|
1238
|
|
|
1239 err = ngx_thread_set_tls(ngx_core_tls_key, tls);
|
|
|
1240 if (err != 0) {
|
|
|
1241 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
1242 ngx_thread_set_tls_n " failed");
|
|
112
|
1243 return (ngx_thread_value_t) 1;
|
|
0
|
1244 }
|
|
|
1245
|
|
112
|
1246 ngx_mutex_lock(ngx_posted_events_mutex);
|
|
0
|
1247
|
|
|
1248 for ( ;; ) {
|
|
|
1249 thr->state = NGX_THREAD_FREE;
|
|
|
1250
|
|
|
1251 if (ngx_cond_wait(thr->cv, ngx_posted_events_mutex) == NGX_ERROR) {
|
|
112
|
1252 return (ngx_thread_value_t) 1;
|
|
0
|
1253 }
|
|
|
1254
|
|
|
1255 if (ngx_terminate) {
|
|
|
1256 thr->state = NGX_THREAD_EXIT;
|
|
|
1257
|
|
|
1258 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
|
1259
|
|
|
1260 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
1261 "thread " NGX_TID_T_FMT " is done",
|
|
|
1262 ngx_thread_self());
|
|
0
|
1263
|
|
112
|
1264 return (ngx_thread_value_t) 0;
|
|
0
|
1265 }
|
|
|
1266
|
|
|
1267 thr->state = NGX_THREAD_BUSY;
|
|
|
1268
|
|
|
1269 if (ngx_event_thread_process_posted(cycle) == NGX_ERROR) {
|
|
112
|
1270 return (ngx_thread_value_t) 1;
|
|
0
|
1271 }
|
|
|
1272
|
|
|
1273 if (ngx_event_thread_process_posted(cycle) == NGX_ERROR) {
|
|
112
|
1274 return (ngx_thread_value_t) 1;
|
|
0
|
1275 }
|
|
|
1276
|
|
|
1277 if (ngx_process_changes) {
|
|
|
1278 if (ngx_process_changes(cycle, 1) == NGX_ERROR) {
|
|
112
|
1279 return (ngx_thread_value_t) 1;
|
|
0
|
1280 }
|
|
|
1281 }
|
|
|
1282 }
|
|
|
1283 }
|
|
|
1284
|
|
|
1285 #endif
|
|
16
|
1286
|
|
|
1287
|
|
50
|
1288 static void
|
|
468
|
1289 ngx_cache_manager_process_cycle(ngx_cycle_t *cycle, void *data)
|
|
16
|
1290 {
|
|
514
|
1291 ngx_cache_manager_ctx_t *ctx = data;
|
|
|
1292
|
|
464
|
1293 void *ident[4];
|
|
|
1294 ngx_event_t ev;
|
|
|
1295
|
|
|
1296 cycle->connection_n = 512;
|
|
16
|
1297
|
|
552
|
1298 ngx_process = NGX_PROCESS_HELPER;
|
|
|
1299
|
|
22
|
1300 ngx_worker_process_init(cycle, 0);
|
|
16
|
1301
|
|
464
|
1302 ngx_close_listening_sockets(cycle);
|
|
16
|
1303
|
|
464
|
1304 ngx_memzero(&ev, sizeof(ngx_event_t));
|
|
514
|
1305 ev.handler = ctx->handler;
|
|
464
|
1306 ev.data = ident;
|
|
|
1307 ev.log = cycle->log;
|
|
|
1308 ident[3] = (void *) -1;
|
|
16
|
1309
|
|
464
|
1310 ngx_use_accept_mutex = 0;
|
|
|
1311
|
|
514
|
1312 ngx_setproctitle(ctx->name);
|
|
464
|
1313
|
|
514
|
1314 ngx_add_timer(&ev, ctx->delay);
|
|
16
|
1315
|
|
|
1316 for ( ;; ) {
|
|
|
1317
|
|
|
1318 if (ngx_terminate || ngx_quit) {
|
|
26
|
1319 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
16
|
1320 exit(0);
|
|
|
1321 }
|
|
|
1322
|
|
|
1323 if (ngx_reopen) {
|
|
|
1324 ngx_reopen = 0;
|
|
26
|
1325 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
|
16
|
1326 ngx_reopen_files(cycle, -1);
|
|
|
1327 }
|
|
|
1328
|
|
112
|
1329 ngx_process_events_and_timers(cycle);
|
|
16
|
1330 }
|
|
|
1331 }
|
|
50
|
1332
|
|
464
|
1333
|
|
|
1334 static void
|
|
468
|
1335 ngx_cache_manager_process_handler(ngx_event_t *ev)
|
|
464
|
1336 {
|
|
|
1337 time_t next, n;
|
|
|
1338 ngx_uint_t i;
|
|
|
1339 ngx_path_t **path;
|
|
|
1340
|
|
|
1341 next = 60 * 60;
|
|
|
1342
|
|
|
1343 path = ngx_cycle->pathes.elts;
|
|
|
1344 for (i = 0; i < ngx_cycle->pathes.nelts; i++) {
|
|
|
1345
|
|
468
|
1346 if (path[i]->manager) {
|
|
|
1347 n = path[i]->manager(path[i]->data);
|
|
464
|
1348
|
|
|
1349 next = (n <= next) ? n : next;
|
|
|
1350
|
|
566
|
1351 ngx_time_update();
|
|
464
|
1352 }
|
|
|
1353 }
|
|
|
1354
|
|
|
1355 if (next == 0) {
|
|
|
1356 next = 1;
|
|
|
1357 }
|
|
|
1358
|
|
|
1359 ngx_add_timer(ev, next * 1000);
|
|
|
1360 }
|
|
514
|
1361
|
|
|
1362
|
|
|
1363 static void
|
|
|
1364 ngx_cache_loader_process_handler(ngx_event_t *ev)
|
|
|
1365 {
|
|
|
1366 ngx_uint_t i;
|
|
|
1367 ngx_path_t **path;
|
|
|
1368 ngx_cycle_t *cycle;
|
|
|
1369
|
|
|
1370 cycle = (ngx_cycle_t *) ngx_cycle;
|
|
|
1371
|
|
|
1372 path = cycle->pathes.elts;
|
|
|
1373 for (i = 0; i < cycle->pathes.nelts; i++) {
|
|
|
1374
|
|
|
1375 if (ngx_terminate || ngx_quit) {
|
|
|
1376 break;
|
|
|
1377 }
|
|
|
1378
|
|
|
1379 if (path[i]->loader) {
|
|
|
1380 path[i]->loader(path[i]->data);
|
|
566
|
1381 ngx_time_update();
|
|
514
|
1382 }
|
|
|
1383 }
|
|
|
1384
|
|
|
1385 exit(0);
|
|
|
1386 }
|
