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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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660
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4 * Copyright (C) Nginx, Inc.
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0
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5 */
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6
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7
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8 #include <ngx_config.h>
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9 #include <ngx_core.h>
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10 #include <ngx_event.h>
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11 #include <ngx_channel.h>
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12
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13
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14 static void ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t n,
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50
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15 ngx_int_t type);
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514
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16 static void ngx_start_cache_manager_processes(ngx_cycle_t *cycle,
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17 ngx_uint_t respawn);
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18 static void ngx_pass_open_channel(ngx_cycle_t *cycle, ngx_channel_t *ch);
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0
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19 static void ngx_signal_worker_processes(ngx_cycle_t *cycle, int signo);
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340
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20 static ngx_uint_t ngx_reap_children(ngx_cycle_t *cycle);
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122
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21 static void ngx_master_process_exit(ngx_cycle_t *cycle);
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0
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22 static void ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data);
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22
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23 static void ngx_worker_process_init(ngx_cycle_t *cycle, ngx_uint_t priority);
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122
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24 static void ngx_worker_process_exit(ngx_cycle_t *cycle);
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0
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25 static void ngx_channel_handler(ngx_event_t *ev);
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26 #if (NGX_THREADS)
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27 static void ngx_wakeup_worker_threads(ngx_cycle_t *cycle);
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112
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28 static ngx_thread_value_t ngx_worker_thread_cycle(void *data);
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0
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29 #endif
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468
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30 static void ngx_cache_manager_process_cycle(ngx_cycle_t *cycle, void *data);
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31 static void ngx_cache_manager_process_handler(ngx_event_t *ev);
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514
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32 static void ngx_cache_loader_process_handler(ngx_event_t *ev);
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0
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33
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34
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35 ngx_uint_t ngx_process;
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36 ngx_pid_t ngx_pid;
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37 ngx_uint_t ngx_threaded;
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38
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39 sig_atomic_t ngx_reap;
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40 sig_atomic_t ngx_sigio;
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518
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41 sig_atomic_t ngx_sigalrm;
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0
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42 sig_atomic_t ngx_terminate;
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43 sig_atomic_t ngx_quit;
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26
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44 sig_atomic_t ngx_debug_quit;
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0
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45 ngx_uint_t ngx_exiting;
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46 sig_atomic_t ngx_reconfigure;
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47 sig_atomic_t ngx_reopen;
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48
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49 sig_atomic_t ngx_change_binary;
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50 ngx_pid_t ngx_new_binary;
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51 ngx_uint_t ngx_inherited;
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52 ngx_uint_t ngx_daemonized;
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53
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54 sig_atomic_t ngx_noaccept;
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55 ngx_uint_t ngx_noaccepting;
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56 ngx_uint_t ngx_restart;
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57
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58
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59 #if (NGX_THREADS)
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60 volatile ngx_thread_t ngx_threads[NGX_MAX_THREADS];
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61 ngx_int_t ngx_threads_n;
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62 #endif
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63
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64
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126
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65 u_long cpu_affinity;
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66 static u_char master_process[] = "master process";
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0
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67
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68
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514
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69 static ngx_cache_manager_ctx_t ngx_cache_manager_ctx = {
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70 ngx_cache_manager_process_handler, "cache manager process", 0
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71 };
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72
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73 static ngx_cache_manager_ctx_t ngx_cache_loader_ctx = {
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74 ngx_cache_loader_process_handler, "cache loader process", 60000
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75 };
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76
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77
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332
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78 static ngx_cycle_t ngx_exit_cycle;
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79 static ngx_log_t ngx_exit_log;
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80 static ngx_open_file_t ngx_exit_log_file;
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81
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82
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50
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83 void
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84 ngx_master_process_cycle(ngx_cycle_t *cycle)
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0
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85 {
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86 char *title;
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87 u_char *p;
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88 size_t size;
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89 ngx_int_t i;
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542
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90 ngx_uint_t n, sigio;
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0
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91 sigset_t set;
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92 struct itimerval itv;
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93 ngx_uint_t live;
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94 ngx_msec_t delay;
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80
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95 ngx_listening_t *ls;
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0
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96 ngx_core_conf_t *ccf;
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97
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98 sigemptyset(&set);
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99 sigaddset(&set, SIGCHLD);
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100 sigaddset(&set, SIGALRM);
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101 sigaddset(&set, SIGIO);
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102 sigaddset(&set, SIGINT);
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103 sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
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104 sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
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105 sigaddset(&set, ngx_signal_value(NGX_NOACCEPT_SIGNAL));
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106 sigaddset(&set, ngx_signal_value(NGX_TERMINATE_SIGNAL));
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107 sigaddset(&set, ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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108 sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
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109
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110 if (sigprocmask(SIG_BLOCK, &set, NULL) == -1) {
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111 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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112 "sigprocmask() failed");
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113 }
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114
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115 sigemptyset(&set);
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116
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117
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118 size = sizeof(master_process);
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119
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2
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120 for (i = 0; i < ngx_argc; i++) {
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121 size += ngx_strlen(ngx_argv[i]) + 1;
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0
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122 }
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123
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382
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124 title = ngx_pnalloc(cycle->pool, size);
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0
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125
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126 p = ngx_cpymem(title, master_process, sizeof(master_process) - 1);
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2
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127 for (i = 0; i < ngx_argc; i++) {
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0
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128 *p++ = ' ';
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2
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129 p = ngx_cpystrn(p, (u_char *) ngx_argv[i], size);
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0
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130 }
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131
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132 ngx_setproctitle(title);
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133
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134
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135 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
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136
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137 ngx_start_worker_processes(cycle, ccf->worker_processes,
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138 NGX_PROCESS_RESPAWN);
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514
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139 ngx_start_cache_manager_processes(cycle, 0);
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0
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140
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141 ngx_new_binary = 0;
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142 delay = 0;
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542
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143 sigio = 0;
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0
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144 live = 1;
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145
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146 for ( ;; ) {
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147 if (delay) {
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518
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148 if (ngx_sigalrm) {
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542
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149 sigio = 0;
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518
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150 delay *= 2;
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151 ngx_sigalrm = 0;
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152 }
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0
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153
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154 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
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518
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155 "termination cycle: %d", delay);
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0
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156
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157 itv.it_interval.tv_sec = 0;
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158 itv.it_interval.tv_usec = 0;
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159 itv.it_value.tv_sec = delay / 1000;
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160 itv.it_value.tv_usec = (delay % 1000 ) * 1000;
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161
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162 if (setitimer(ITIMER_REAL, &itv, NULL) == -1) {
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163 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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164 "setitimer() failed");
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165 }
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166 }
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167
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168 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "sigsuspend");
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169
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170 sigsuspend(&set);
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171
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566
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172 ngx_time_update();
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0
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173
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544
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174 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
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542
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175 "wake up, sigio %i", sigio);
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0
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176
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177 if (ngx_reap) {
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178 ngx_reap = 0;
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340
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179 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "reap children");
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0
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180
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340
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181 live = ngx_reap_children(cycle);
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0
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182 }
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183
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184 if (!live && (ngx_terminate || ngx_quit)) {
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122
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185 ngx_master_process_exit(cycle);
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0
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186 }
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187
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188 if (ngx_terminate) {
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189 if (delay == 0) {
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190 delay = 50;
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191 }
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192
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542
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193 if (sigio) {
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194 sigio--;
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195 continue;
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196 }
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197
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198 sigio = ccf->worker_processes + 2 /* cache processes */;
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199
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0
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200 if (delay > 1000) {
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201 ngx_signal_worker_processes(cycle, SIGKILL);
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202 } else {
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203 ngx_signal_worker_processes(cycle,
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204 ngx_signal_value(NGX_TERMINATE_SIGNAL));
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205 }
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206
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207 continue;
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208 }
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209
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210 if (ngx_quit) {
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211 ngx_signal_worker_processes(cycle,
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212 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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80
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213
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214 ls = cycle->listening.elts;
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215 for (n = 0; n < cycle->listening.nelts; n++) {
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216 if (ngx_close_socket(ls[n].fd) == -1) {
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217 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_socket_errno,
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218 ngx_close_socket_n " %V failed",
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219 &ls[n].addr_text);
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220 }
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221 }
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222 cycle->listening.nelts = 0;
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223
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0
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224 continue;
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225 }
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226
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227 if (ngx_reconfigure) {
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228 ngx_reconfigure = 0;
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229
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230 if (ngx_new_binary) {
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231 ngx_start_worker_processes(cycle, ccf->worker_processes,
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232 NGX_PROCESS_RESPAWN);
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514
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233 ngx_start_cache_manager_processes(cycle, 0);
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0
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234 ngx_noaccepting = 0;
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235
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236 continue;
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237 }
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238
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26
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239 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
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0
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240
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241 cycle = ngx_init_cycle(cycle);
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242 if (cycle == NULL) {
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243 cycle = (ngx_cycle_t *) ngx_cycle;
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244 continue;
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245 }
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246
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247 ngx_cycle = cycle;
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248 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
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249 ngx_core_module);
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250 ngx_start_worker_processes(cycle, ccf->worker_processes,
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251 NGX_PROCESS_JUST_RESPAWN);
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514
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252 ngx_start_cache_manager_processes(cycle, 1);
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0
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253 live = 1;
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254 ngx_signal_worker_processes(cycle,
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255 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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256 }
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257
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258 if (ngx_restart) {
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259 ngx_restart = 0;
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260 ngx_start_worker_processes(cycle, ccf->worker_processes,
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261 NGX_PROCESS_RESPAWN);
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514
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262 ngx_start_cache_manager_processes(cycle, 0);
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0
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263 live = 1;
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264 }
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265
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266 if (ngx_reopen) {
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267 ngx_reopen = 0;
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26
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268 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
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0
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269 ngx_reopen_files(cycle, ccf->user);
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270 ngx_signal_worker_processes(cycle,
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271 ngx_signal_value(NGX_REOPEN_SIGNAL));
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272 }
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273
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274 if (ngx_change_binary) {
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275 ngx_change_binary = 0;
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26
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276 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "changing binary");
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2
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277 ngx_new_binary = ngx_exec_new_binary(cycle, ngx_argv);
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0
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278 }
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279
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280 if (ngx_noaccept) {
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281 ngx_noaccept = 0;
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282 ngx_noaccepting = 1;
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283 ngx_signal_worker_processes(cycle,
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284 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
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285 }
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286 }
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287 }
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288
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289
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50
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290 void
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291 ngx_single_process_cycle(ngx_cycle_t *cycle)
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0
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292 {
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293 ngx_uint_t i;
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294
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610
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295 if (ngx_set_environment(cycle, NULL) == NULL) {
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296 /* fatal */
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297 exit(2);
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298 }
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299
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0
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300 for (i = 0; ngx_modules[i]; i++) {
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301 if (ngx_modules[i]->init_process) {
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302 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
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303 /* fatal */
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304 exit(2);
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305 }
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306 }
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307 }
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308
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309 for ( ;; ) {
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310 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
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311
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112
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312 ngx_process_events_and_timers(cycle);
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0
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313
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314 if (ngx_terminate || ngx_quit) {
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120
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315
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316 for (i = 0; ngx_modules[i]; i++) {
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317 if (ngx_modules[i]->exit_process) {
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318 ngx_modules[i]->exit_process(cycle);
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319 }
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320 }
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321
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122
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322 ngx_master_process_exit(cycle);
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0
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323 }
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324
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325 if (ngx_reconfigure) {
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326 ngx_reconfigure = 0;
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26
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327 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
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0
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328
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329 cycle = ngx_init_cycle(cycle);
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330 if (cycle == NULL) {
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331 cycle = (ngx_cycle_t *) ngx_cycle;
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332 continue;
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333 }
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334
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335 ngx_cycle = cycle;
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336 }
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337
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338 if (ngx_reopen) {
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339 ngx_reopen = 0;
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26
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340 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
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0
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341 ngx_reopen_files(cycle, (ngx_uid_t) -1);
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342 }
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343 }
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344 }
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345
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346
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50
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347 static void
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348 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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349 {
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514
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350 ngx_int_t i;
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106
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351 ngx_channel_t ch;
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0
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352
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26
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353 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start worker processes");
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0
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354
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355 ch.command = NGX_CMD_OPEN_CHANNEL;
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356
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126
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357 for (i = 0; i < n; i++) {
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358
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359 cpu_affinity = ngx_get_cpu_affinity(i);
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360
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0
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361 ngx_spawn_process(cycle, ngx_worker_process_cycle, NULL,
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362 "worker process", type);
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363
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364 ch.pid = ngx_processes[ngx_process_slot].pid;
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365 ch.slot = ngx_process_slot;
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366 ch.fd = ngx_processes[ngx_process_slot].channel[0];
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367
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514
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368 ngx_pass_open_channel(cycle, &ch);
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0
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369 }
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370 }
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371
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|
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372
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50
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373 static void
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514
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374 ngx_start_cache_manager_processes(ngx_cycle_t *cycle, ngx_uint_t respawn)
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16
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375 {
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514
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376 ngx_uint_t i, manager, loader;
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|
464
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377 ngx_path_t **path;
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|
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378 ngx_channel_t ch;
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16
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379
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|
514
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380 manager = 0;
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381 loader = 0;
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382
|
|
464
|
383 path = ngx_cycle->pathes.elts;
|
|
514
|
384 for (i = 0; i < ngx_cycle->pathes.nelts; i++) {
|
|
|
385
|
|
|
386 if (path[i]->manager) {
|
|
|
387 manager = 1;
|
|
|
388 }
|
|
|
389
|
|
|
390 if (path[i]->loader) {
|
|
|
391 loader = 1;
|
|
464
|
392 }
|
|
|
393 }
|
|
|
394
|
|
514
|
395 if (manager == 0) {
|
|
|
396 return;
|
|
|
397 }
|
|
464
|
398
|
|
514
|
399 ngx_spawn_process(cycle, ngx_cache_manager_process_cycle,
|
|
|
400 &ngx_cache_manager_ctx, "cache manager process",
|
|
|
401 respawn ? NGX_PROCESS_JUST_RESPAWN : NGX_PROCESS_RESPAWN);
|
|
16
|
402
|
|
|
403 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
|
404 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
|
405 ch.slot = ngx_process_slot;
|
|
|
406 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
|
407
|
|
514
|
408 ngx_pass_open_channel(cycle, &ch);
|
|
|
409
|
|
|
410 if (loader == 0) {
|
|
|
411 return;
|
|
|
412 }
|
|
|
413
|
|
|
414 ngx_spawn_process(cycle, ngx_cache_manager_process_cycle,
|
|
|
415 &ngx_cache_loader_ctx, "cache loader process",
|
|
|
416 respawn ? NGX_PROCESS_JUST_SPAWN : NGX_PROCESS_NORESPAWN);
|
|
|
417
|
|
|
418 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
|
419 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
|
420 ch.slot = ngx_process_slot;
|
|
|
421 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
|
422
|
|
|
423 ngx_pass_open_channel(cycle, &ch);
|
|
|
424 }
|
|
|
425
|
|
|
426
|
|
|
427 static void
|
|
|
428 ngx_pass_open_channel(ngx_cycle_t *cycle, ngx_channel_t *ch)
|
|
|
429 {
|
|
|
430 ngx_int_t i;
|
|
|
431
|
|
16
|
432 for (i = 0; i < ngx_last_process; i++) {
|
|
|
433
|
|
|
434 if (i == ngx_process_slot
|
|
|
435 || ngx_processes[i].pid == -1
|
|
|
436 || ngx_processes[i].channel[0] == -1)
|
|
|
437 {
|
|
|
438 continue;
|
|
|
439 }
|
|
|
440
|
|
|
441 ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
442 "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",
|
|
514
|
443 ch->slot, ch->pid, ch->fd,
|
|
16
|
444 i, ngx_processes[i].pid,
|
|
|
445 ngx_processes[i].channel[0]);
|
|
|
446
|
|
|
447 /* TODO: NGX_AGAIN */
|
|
|
448
|
|
|
449 ngx_write_channel(ngx_processes[i].channel[0],
|
|
514
|
450 ch, sizeof(ngx_channel_t), cycle->log);
|
|
16
|
451 }
|
|
|
452 }
|
|
|
453
|
|
|
454
|
|
50
|
455 static void
|
|
|
456 ngx_signal_worker_processes(ngx_cycle_t *cycle, int signo)
|
|
0
|
457 {
|
|
|
458 ngx_int_t i;
|
|
|
459 ngx_err_t err;
|
|
|
460 ngx_channel_t ch;
|
|
|
461
|
|
342
|
462 #if (NGX_BROKEN_SCM_RIGHTS)
|
|
|
463
|
|
|
464 ch.command = 0;
|
|
|
465
|
|
|
466 #else
|
|
|
467
|
|
0
|
468 switch (signo) {
|
|
|
469
|
|
|
470 case ngx_signal_value(NGX_SHUTDOWN_SIGNAL):
|
|
|
471 ch.command = NGX_CMD_QUIT;
|
|
|
472 break;
|
|
|
473
|
|
|
474 case ngx_signal_value(NGX_TERMINATE_SIGNAL):
|
|
|
475 ch.command = NGX_CMD_TERMINATE;
|
|
|
476 break;
|
|
|
477
|
|
|
478 case ngx_signal_value(NGX_REOPEN_SIGNAL):
|
|
|
479 ch.command = NGX_CMD_REOPEN;
|
|
|
480 break;
|
|
|
481
|
|
|
482 default:
|
|
|
483 ch.command = 0;
|
|
|
484 }
|
|
|
485
|
|
342
|
486 #endif
|
|
|
487
|
|
0
|
488 ch.fd = -1;
|
|
|
489
|
|
|
490
|
|
|
491 for (i = 0; i < ngx_last_process; i++) {
|
|
|
492
|
|
|
493 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
494 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
|
0
|
495 i,
|
|
|
496 ngx_processes[i].pid,
|
|
|
497 ngx_processes[i].exiting,
|
|
|
498 ngx_processes[i].exited,
|
|
|
499 ngx_processes[i].detached,
|
|
|
500 ngx_processes[i].respawn,
|
|
514
|
501 ngx_processes[i].just_spawn);
|
|
0
|
502
|
|
|
503 if (ngx_processes[i].detached || ngx_processes[i].pid == -1) {
|
|
|
504 continue;
|
|
|
505 }
|
|
|
506
|
|
514
|
507 if (ngx_processes[i].just_spawn) {
|
|
|
508 ngx_processes[i].just_spawn = 0;
|
|
0
|
509 continue;
|
|
|
510 }
|
|
|
511
|
|
|
512 if (ngx_processes[i].exiting
|
|
|
513 && signo == ngx_signal_value(NGX_SHUTDOWN_SIGNAL))
|
|
|
514 {
|
|
|
515 continue;
|
|
|
516 }
|
|
|
517
|
|
|
518 if (ch.command) {
|
|
|
519 if (ngx_write_channel(ngx_processes[i].channel[0],
|
|
290
|
520 &ch, sizeof(ngx_channel_t), cycle->log)
|
|
|
521 == NGX_OK)
|
|
0
|
522 {
|
|
|
523 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
|
524 ngx_processes[i].exiting = 1;
|
|
|
525 }
|
|
|
526
|
|
|
527 continue;
|
|
|
528 }
|
|
|
529 }
|
|
|
530
|
|
|
531 ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
532 "kill (%P, %d)" , ngx_processes[i].pid, signo);
|
|
0
|
533
|
|
|
534 if (kill(ngx_processes[i].pid, signo) == -1) {
|
|
|
535 err = ngx_errno;
|
|
|
536 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
518
|
537 "kill(%P, %d) failed", ngx_processes[i].pid, signo);
|
|
0
|
538
|
|
|
539 if (err == NGX_ESRCH) {
|
|
|
540 ngx_processes[i].exited = 1;
|
|
|
541 ngx_processes[i].exiting = 0;
|
|
|
542 ngx_reap = 1;
|
|
|
543 }
|
|
|
544
|
|
|
545 continue;
|
|
|
546 }
|
|
|
547
|
|
|
548 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
|
549 ngx_processes[i].exiting = 1;
|
|
|
550 }
|
|
|
551 }
|
|
|
552 }
|
|
|
553
|
|
|
554
|
|
50
|
555 static ngx_uint_t
|
|
340
|
556 ngx_reap_children(ngx_cycle_t *cycle)
|
|
0
|
557 {
|
|
92
|
558 ngx_int_t i, n;
|
|
|
559 ngx_uint_t live;
|
|
|
560 ngx_channel_t ch;
|
|
|
561 ngx_core_conf_t *ccf;
|
|
0
|
562
|
|
|
563 ch.command = NGX_CMD_CLOSE_CHANNEL;
|
|
|
564 ch.fd = -1;
|
|
|
565
|
|
|
566 live = 0;
|
|
|
567 for (i = 0; i < ngx_last_process; i++) {
|
|
|
568
|
|
|
569 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
570 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
|
0
|
571 i,
|
|
|
572 ngx_processes[i].pid,
|
|
|
573 ngx_processes[i].exiting,
|
|
|
574 ngx_processes[i].exited,
|
|
|
575 ngx_processes[i].detached,
|
|
|
576 ngx_processes[i].respawn,
|
|
514
|
577 ngx_processes[i].just_spawn);
|
|
0
|
578
|
|
|
579 if (ngx_processes[i].pid == -1) {
|
|
|
580 continue;
|
|
|
581 }
|
|
|
582
|
|
|
583 if (ngx_processes[i].exited) {
|
|
|
584
|
|
|
585 if (!ngx_processes[i].detached) {
|
|
|
586 ngx_close_channel(ngx_processes[i].channel, cycle->log);
|
|
|
587
|
|
|
588 ngx_processes[i].channel[0] = -1;
|
|
|
589 ngx_processes[i].channel[1] = -1;
|
|
|
590
|
|
|
591 ch.pid = ngx_processes[i].pid;
|
|
|
592 ch.slot = i;
|
|
|
593
|
|
|
594 for (n = 0; n < ngx_last_process; n++) {
|
|
|
595 if (ngx_processes[n].exited
|
|
|
596 || ngx_processes[n].pid == -1
|
|
|
597 || ngx_processes[n].channel[0] == -1)
|
|
|
598 {
|
|
|
599 continue;
|
|
|
600 }
|
|
|
601
|
|
|
602 ngx_log_debug3(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
603 "pass close channel s:%i pid:%P to:%P",
|
|
|
604 ch.slot, ch.pid, ngx_processes[n].pid);
|
|
0
|
605
|
|
|
606 /* TODO: NGX_AGAIN */
|
|
|
607
|
|
|
608 ngx_write_channel(ngx_processes[n].channel[0],
|
|
|
609 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
|
610 }
|
|
|
611 }
|
|
|
612
|
|
|
613 if (ngx_processes[i].respawn
|
|
|
614 && !ngx_processes[i].exiting
|
|
|
615 && !ngx_terminate
|
|
|
616 && !ngx_quit)
|
|
|
617 {
|
|
|
618 if (ngx_spawn_process(cycle, ngx_processes[i].proc,
|
|
|
619 ngx_processes[i].data,
|
|
|
620 ngx_processes[i].name, i)
|
|
92
|
621 == NGX_INVALID_PID)
|
|
0
|
622 {
|
|
|
623 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
640
|
624 "could not respawn %s",
|
|
|
625 ngx_processes[i].name);
|
|
0
|
626 continue;
|
|
|
627 }
|
|
|
628
|
|
22
|
629
|
|
|
630 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
|
631 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
|
632 ch.slot = ngx_process_slot;
|
|
|
633 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
|
634
|
|
514
|
635 ngx_pass_open_channel(cycle, &ch);
|
|
22
|
636
|
|
0
|
637 live = 1;
|
|
|
638
|
|
|
639 continue;
|
|
|
640 }
|
|
|
641
|
|
|
642 if (ngx_processes[i].pid == ngx_new_binary) {
|
|
92
|
643
|
|
|
644 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
|
|
|
645 ngx_core_module);
|
|
|
646
|
|
|
647 if (ngx_rename_file((char *) ccf->oldpid.data,
|
|
|
648 (char *) ccf->pid.data)
|
|
|
649 != NGX_OK)
|
|
|
650 {
|
|
|
651 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
652 ngx_rename_file_n " %s back to %s failed "
|
|
|
653 "after the new binary process \"%s\" exited",
|
|
|
654 ccf->oldpid.data, ccf->pid.data, ngx_argv[0]);
|
|
|
655 }
|
|
|
656
|
|
0
|
657 ngx_new_binary = 0;
|
|
|
658 if (ngx_noaccepting) {
|
|
|
659 ngx_restart = 1;
|
|
|
660 ngx_noaccepting = 0;
|
|
|
661 }
|
|
|
662 }
|
|
|
663
|
|
|
664 if (i == ngx_last_process - 1) {
|
|
|
665 ngx_last_process--;
|
|
|
666
|
|
|
667 } else {
|
|
|
668 ngx_processes[i].pid = -1;
|
|
|
669 }
|
|
|
670
|
|
|
671 } else if (ngx_processes[i].exiting || !ngx_processes[i].detached) {
|
|
|
672 live = 1;
|
|
|
673 }
|
|
|
674 }
|
|
|
675
|
|
|
676 return live;
|
|
|
677 }
|
|
|
678
|
|
|
679
|
|
50
|
680 static void
|
|
122
|
681 ngx_master_process_exit(ngx_cycle_t *cycle)
|
|
0
|
682 {
|
|
120
|
683 ngx_uint_t i;
|
|
|
684
|
|
0
|
685 ngx_delete_pidfile(cycle);
|
|
|
686
|
|
26
|
687 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit");
|
|
0
|
688
|
|
120
|
689 for (i = 0; ngx_modules[i]; i++) {
|
|
|
690 if (ngx_modules[i]->exit_master) {
|
|
|
691 ngx_modules[i]->exit_master(cycle);
|
|
|
692 }
|
|
|
693 }
|
|
|
694
|
|
538
|
695 ngx_close_listening_sockets(cycle);
|
|
|
696
|
|
54
|
697 /*
|
|
332
|
698 * Copy ngx_cycle->log related data to the special static exit cycle,
|
|
|
699 * log, and log file structures enough to allow a signal handler to log.
|
|
|
700 * The handler may be called when standard ngx_cycle->log allocated from
|
|
|
701 * ngx_cycle->pool is already destroyed.
|
|
54
|
702 */
|
|
|
703
|
|
332
|
704 ngx_exit_log_file.fd = ngx_cycle->log->file->fd;
|
|
|
705
|
|
|
706 ngx_exit_log = *ngx_cycle->log;
|
|
|
707 ngx_exit_log.file = &ngx_exit_log_file;
|
|
|
708
|
|
|
709 ngx_exit_cycle.log = &ngx_exit_log;
|
|
|
710 ngx_cycle = &ngx_exit_cycle;
|
|
|
711
|
|
0
|
712 ngx_destroy_pool(cycle->pool);
|
|
|
713
|
|
|
714 exit(0);
|
|
|
715 }
|
|
|
716
|
|
|
717
|
|
50
|
718 static void
|
|
|
719 ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data)
|
|
0
|
720 {
|
|
290
|
721 ngx_uint_t i;
|
|
|
722 ngx_connection_t *c;
|
|
18
|
723
|
|
552
|
724 ngx_process = NGX_PROCESS_WORKER;
|
|
|
725
|
|
22
|
726 ngx_worker_process_init(cycle, 1);
|
|
0
|
727
|
|
|
728 ngx_setproctitle("worker process");
|
|
|
729
|
|
|
730 #if (NGX_THREADS)
|
|
356
|
731 {
|
|
|
732 ngx_int_t n;
|
|
|
733 ngx_err_t err;
|
|
|
734 ngx_core_conf_t *ccf;
|
|
0
|
735
|
|
18
|
736 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
737
|
|
0
|
738 if (ngx_threads_n) {
|
|
290
|
739 if (ngx_init_threads(ngx_threads_n, ccf->thread_stack_size, cycle)
|
|
|
740 == NGX_ERROR)
|
|
0
|
741 {
|
|
|
742 /* fatal */
|
|
|
743 exit(2);
|
|
|
744 }
|
|
|
745
|
|
|
746 err = ngx_thread_key_create(&ngx_core_tls_key);
|
|
|
747 if (err != 0) {
|
|
|
748 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
749 ngx_thread_key_create_n " failed");
|
|
|
750 /* fatal */
|
|
|
751 exit(2);
|
|
|
752 }
|
|
|
753
|
|
|
754 for (n = 0; n < ngx_threads_n; n++) {
|
|
|
755
|
|
50
|
756 ngx_threads[n].cv = ngx_cond_init(cycle->log);
|
|
|
757
|
|
|
758 if (ngx_threads[n].cv == NULL) {
|
|
0
|
759 /* fatal */
|
|
|
760 exit(2);
|
|
|
761 }
|
|
|
762
|
|
|
763 if (ngx_create_thread((ngx_tid_t *) &ngx_threads[n].tid,
|
|
|
764 ngx_worker_thread_cycle,
|
|
290
|
765 (void *) &ngx_threads[n], cycle->log)
|
|
|
766 != 0)
|
|
0
|
767 {
|
|
|
768 /* fatal */
|
|
|
769 exit(2);
|
|
|
770 }
|
|
|
771 }
|
|
|
772 }
|
|
356
|
773 }
|
|
0
|
774 #endif
|
|
|
775
|
|
|
776 for ( ;; ) {
|
|
290
|
777
|
|
|
778 if (ngx_exiting) {
|
|
|
779
|
|
|
780 c = cycle->connections;
|
|
|
781
|
|
|
782 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
783
|
|
|
784 /* THREAD: lock */
|
|
0
|
785
|
|
290
|
786 if (c[i].fd != -1 && c[i].idle) {
|
|
|
787 c[i].close = 1;
|
|
|
788 c[i].read->handler(c[i].read);
|
|
|
789 }
|
|
|
790 }
|
|
|
791
|
|
|
792 if (ngx_event_timer_rbtree.root == ngx_event_timer_rbtree.sentinel)
|
|
|
793 {
|
|
|
794 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
|
795
|
|
|
796 ngx_worker_process_exit(cycle);
|
|
|
797 }
|
|
0
|
798 }
|
|
|
799
|
|
|
800 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
|
|
|
801
|
|
112
|
802 ngx_process_events_and_timers(cycle);
|
|
0
|
803
|
|
|
804 if (ngx_terminate) {
|
|
26
|
805 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
0
|
806
|
|
122
|
807 ngx_worker_process_exit(cycle);
|
|
0
|
808 }
|
|
|
809
|
|
|
810 if (ngx_quit) {
|
|
|
811 ngx_quit = 0;
|
|
26
|
812 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
0
|
813 "gracefully shutting down");
|
|
|
814 ngx_setproctitle("worker process is shutting down");
|
|
|
815
|
|
|
816 if (!ngx_exiting) {
|
|
|
817 ngx_close_listening_sockets(cycle);
|
|
|
818 ngx_exiting = 1;
|
|
|
819 }
|
|
|
820 }
|
|
|
821
|
|
|
822 if (ngx_reopen) {
|
|
|
823 ngx_reopen = 0;
|
|
26
|
824 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
|
0
|
825 ngx_reopen_files(cycle, -1);
|
|
|
826 }
|
|
|
827 }
|
|
|
828 }
|
|
|
829
|
|
|
830
|
|
50
|
831 static void
|
|
|
832 ngx_worker_process_init(ngx_cycle_t *cycle, ngx_uint_t priority)
|
|
16
|
833 {
|
|
278
|
834 sigset_t set;
|
|
|
835 ngx_int_t n;
|
|
|
836 ngx_uint_t i;
|
|
|
837 struct rlimit rlmt;
|
|
|
838 ngx_core_conf_t *ccf;
|
|
|
839 ngx_listening_t *ls;
|
|
16
|
840
|
|
278
|
841 if (ngx_set_environment(cycle, NULL) == NULL) {
|
|
|
842 /* fatal */
|
|
|
843 exit(2);
|
|
|
844 }
|
|
|
845
|
|
16
|
846 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
847
|
|
328
|
848 if (priority && ccf->priority != 0) {
|
|
|
849 if (setpriority(PRIO_PROCESS, 0, ccf->priority) == -1) {
|
|
|
850 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
851 "setpriority(%d) failed", ccf->priority);
|
|
22
|
852 }
|
|
328
|
853 }
|
|
22
|
854
|
|
328
|
855 if (ccf->rlimit_nofile != NGX_CONF_UNSET) {
|
|
|
856 rlmt.rlim_cur = (rlim_t) ccf->rlimit_nofile;
|
|
|
857 rlmt.rlim_max = (rlim_t) ccf->rlimit_nofile;
|
|
92
|
858
|
|
328
|
859 if (setrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
|
|
|
860 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
861 "setrlimit(RLIMIT_NOFILE, %i) failed",
|
|
|
862 ccf->rlimit_nofile);
|
|
92
|
863 }
|
|
328
|
864 }
|
|
92
|
865
|
|
598
|
866 if (ccf->rlimit_core != NGX_CONF_UNSET) {
|
|
328
|
867 rlmt.rlim_cur = (rlim_t) ccf->rlimit_core;
|
|
|
868 rlmt.rlim_max = (rlim_t) ccf->rlimit_core;
|
|
138
|
869
|
|
328
|
870 if (setrlimit(RLIMIT_CORE, &rlmt) == -1) {
|
|
|
871 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
598
|
872 "setrlimit(RLIMIT_CORE, %O) failed",
|
|
328
|
873 ccf->rlimit_core);
|
|
138
|
874 }
|
|
328
|
875 }
|
|
138
|
876
|
|
92
|
877 #ifdef RLIMIT_SIGPENDING
|
|
328
|
878 if (ccf->rlimit_sigpending != NGX_CONF_UNSET) {
|
|
|
879 rlmt.rlim_cur = (rlim_t) ccf->rlimit_sigpending;
|
|
|
880 rlmt.rlim_max = (rlim_t) ccf->rlimit_sigpending;
|
|
92
|
881
|
|
328
|
882 if (setrlimit(RLIMIT_SIGPENDING, &rlmt) == -1) {
|
|
|
883 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
884 "setrlimit(RLIMIT_SIGPENDING, %i) failed",
|
|
|
885 ccf->rlimit_sigpending);
|
|
92
|
886 }
|
|
328
|
887 }
|
|
92
|
888 #endif
|
|
|
889
|
|
328
|
890 if (geteuid() == 0) {
|
|
16
|
891 if (setgid(ccf->group) == -1) {
|
|
|
892 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
893 "setgid(%d) failed", ccf->group);
|
|
|
894 /* fatal */
|
|
|
895 exit(2);
|
|
|
896 }
|
|
|
897
|
|
22
|
898 if (initgroups(ccf->username, ccf->group) == -1) {
|
|
|
899 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
900 "initgroups(%s, %d) failed",
|
|
|
901 ccf->username, ccf->group);
|
|
|
902 }
|
|
|
903
|
|
16
|
904 if (setuid(ccf->user) == -1) {
|
|
|
905 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
906 "setuid(%d) failed", ccf->user);
|
|
|
907 /* fatal */
|
|
|
908 exit(2);
|
|
|
909 }
|
|
|
910 }
|
|
|
911
|
|
126
|
912 #if (NGX_HAVE_SCHED_SETAFFINITY)
|
|
|
913
|
|
|
914 if (cpu_affinity) {
|
|
|
915 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
|
916 "sched_setaffinity(0x%08Xl)", cpu_affinity);
|
|
|
917
|
|
658
|
918 if (sched_setaffinity(0, sizeof(cpu_affinity),
|
|
|
919 (cpu_set_t *) &cpu_affinity)
|
|
|
920 == -1)
|
|
|
921 {
|
|
126
|
922 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
923 "sched_setaffinity(0x%08Xl) failed", cpu_affinity);
|
|
|
924 }
|
|
|
925 }
|
|
|
926
|
|
|
927 #endif
|
|
|
928
|
|
16
|
929 #if (NGX_HAVE_PR_SET_DUMPABLE)
|
|
|
930
|
|
|
931 /* allow coredump after setuid() in Linux 2.4.x */
|
|
|
932
|
|
|
933 if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1) {
|
|
|
934 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
935 "prctl(PR_SET_DUMPABLE) failed");
|
|
|
936 }
|
|
|
937
|
|
|
938 #endif
|
|
|
939
|
|
70
|
940 if (ccf->working_directory.len) {
|
|
72
|
941 if (chdir((char *) ccf->working_directory.data) == -1) {
|
|
70
|
942 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
943 "chdir(\"%s\") failed", ccf->working_directory.data);
|
|
|
944 /* fatal */
|
|
|
945 exit(2);
|
|
|
946 }
|
|
|
947 }
|
|
|
948
|
|
16
|
949 sigemptyset(&set);
|
|
|
950
|
|
|
951 if (sigprocmask(SIG_SETMASK, &set, NULL) == -1) {
|
|
|
952 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
953 "sigprocmask() failed");
|
|
|
954 }
|
|
|
955
|
|
|
956 /*
|
|
|
957 * disable deleting previous events for the listening sockets because
|
|
|
958 * in the worker processes there are no events at all at this point
|
|
126
|
959 */
|
|
16
|
960 ls = cycle->listening.elts;
|
|
|
961 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
92
|
962 ls[i].previous = NULL;
|
|
16
|
963 }
|
|
|
964
|
|
|
965 for (i = 0; ngx_modules[i]; i++) {
|
|
|
966 if (ngx_modules[i]->init_process) {
|
|
|
967 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
|
|
|
968 /* fatal */
|
|
|
969 exit(2);
|
|
|
970 }
|
|
|
971 }
|
|
|
972 }
|
|
|
973
|
|
|
974 for (n = 0; n < ngx_last_process; n++) {
|
|
|
975
|
|
|
976 if (ngx_processes[n].pid == -1) {
|
|
|
977 continue;
|
|
|
978 }
|
|
|
979
|
|
|
980 if (n == ngx_process_slot) {
|
|
|
981 continue;
|
|
|
982 }
|
|
|
983
|
|
|
984 if (ngx_processes[n].channel[1] == -1) {
|
|
|
985 continue;
|
|
|
986 }
|
|
|
987
|
|
|
988 if (close(ngx_processes[n].channel[1]) == -1) {
|
|
|
989 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
990 "close() channel failed");
|
|
|
991 }
|
|
|
992 }
|
|
|
993
|
|
|
994 if (close(ngx_processes[ngx_process_slot].channel[0]) == -1) {
|
|
|
995 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
996 "close() channel failed");
|
|
|
997 }
|
|
|
998
|
|
|
999 #if 0
|
|
|
1000 ngx_last_process = 0;
|
|
|
1001 #endif
|
|
|
1002
|
|
|
1003 if (ngx_add_channel_event(cycle, ngx_channel, NGX_READ_EVENT,
|
|
290
|
1004 ngx_channel_handler)
|
|
|
1005 == NGX_ERROR)
|
|
16
|
1006 {
|
|
|
1007 /* fatal */
|
|
|
1008 exit(2);
|
|
|
1009 }
|
|
|
1010 }
|
|
|
1011
|
|
|
1012
|
|
50
|
1013 static void
|
|
122
|
1014 ngx_worker_process_exit(ngx_cycle_t *cycle)
|
|
|
1015 {
|
|
|
1016 ngx_uint_t i;
|
|
|
1017 ngx_connection_t *c;
|
|
|
1018
|
|
|
1019 #if (NGX_THREADS)
|
|
|
1020 ngx_terminate = 1;
|
|
|
1021
|
|
|
1022 ngx_wakeup_worker_threads(cycle);
|
|
|
1023 #endif
|
|
|
1024
|
|
|
1025 for (i = 0; ngx_modules[i]; i++) {
|
|
|
1026 if (ngx_modules[i]->exit_process) {
|
|
|
1027 ngx_modules[i]->exit_process(cycle);
|
|
|
1028 }
|
|
|
1029 }
|
|
|
1030
|
|
366
|
1031 if (ngx_exiting) {
|
|
136
|
1032 c = cycle->connections;
|
|
|
1033 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
1034 if (c[i].fd != -1
|
|
|
1035 && c[i].read
|
|
|
1036 && !c[i].read->accept
|
|
366
|
1037 && !c[i].read->channel
|
|
|
1038 && !c[i].read->resolver)
|
|
136
|
1039 {
|
|
|
1040 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
514
|
1041 "open socket #%d left in connection %ui",
|
|
|
1042 c[i].fd, i);
|
|
|
1043 ngx_debug_quit = 1;
|
|
136
|
1044 }
|
|
122
|
1045 }
|
|
|
1046
|
|
136
|
1047 if (ngx_debug_quit) {
|
|
514
|
1048 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, "aborting");
|
|
136
|
1049 ngx_debug_point();
|
|
|
1050 }
|
|
122
|
1051 }
|
|
|
1052
|
|
|
1053 /*
|
|
332
|
1054 * Copy ngx_cycle->log related data to the special static exit cycle,
|
|
|
1055 * log, and log file structures enough to allow a signal handler to log.
|
|
|
1056 * The handler may be called when standard ngx_cycle->log allocated from
|
|
|
1057 * ngx_cycle->pool is already destroyed.
|
|
122
|
1058 */
|
|
|
1059
|
|
332
|
1060 ngx_exit_log_file.fd = ngx_cycle->log->file->fd;
|
|
|
1061
|
|
|
1062 ngx_exit_log = *ngx_cycle->log;
|
|
|
1063 ngx_exit_log.file = &ngx_exit_log_file;
|
|
|
1064
|
|
|
1065 ngx_exit_cycle.log = &ngx_exit_log;
|
|
|
1066 ngx_cycle = &ngx_exit_cycle;
|
|
|
1067
|
|
122
|
1068 ngx_destroy_pool(cycle->pool);
|
|
332
|
1069
|
|
|
1070 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, "exit");
|
|
122
|
1071
|
|
|
1072 exit(0);
|
|
|
1073 }
|
|
|
1074
|
|
|
1075
|
|
|
1076 static void
|
|
50
|
1077 ngx_channel_handler(ngx_event_t *ev)
|
|
0
|
1078 {
|
|
|
1079 ngx_int_t n;
|
|
|
1080 ngx_channel_t ch;
|
|
|
1081 ngx_connection_t *c;
|
|
|
1082
|
|
16
|
1083 if (ev->timedout) {
|
|
|
1084 ev->timedout = 0;
|
|
|
1085 return;
|
|
|
1086 }
|
|
|
1087
|
|
0
|
1088 c = ev->data;
|
|
|
1089
|
|
|
1090 ngx_log_debug0(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel handler");
|
|
|
1091
|
|
378
|
1092 for ( ;; ) {
|
|
0
|
1093
|
|
378
|
1094 n = ngx_read_channel(c->fd, &ch, sizeof(ngx_channel_t), ev->log);
|
|
|
1095
|
|
|
1096 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel: %i", n);
|
|
0
|
1097
|
|
378
|
1098 if (n == NGX_ERROR) {
|
|
366
|
1099
|
|
378
|
1100 if (ngx_event_flags & NGX_USE_EPOLL_EVENT) {
|
|
|
1101 ngx_del_conn(c, 0);
|
|
|
1102 }
|
|
|
1103
|
|
|
1104 ngx_close_connection(c);
|
|
|
1105 return;
|
|
366
|
1106 }
|
|
|
1107
|
|
378
|
1108 if (ngx_event_flags & NGX_USE_EVENTPORT_EVENT) {
|
|
|
1109 if (ngx_add_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
1110 return;
|
|
|
1111 }
|
|
|
1112 }
|
|
10
|
1113
|
|
378
|
1114 if (n == NGX_AGAIN) {
|
|
290
|
1115 return;
|
|
|
1116 }
|
|
378
|
1117
|
|
|
1118 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1119 "channel command: %d", ch.command);
|
|
290
|
1120
|
|
378
|
1121 switch (ch.command) {
|
|
0
|
1122
|
|
378
|
1123 case NGX_CMD_QUIT:
|
|
|
1124 ngx_quit = 1;
|
|
|
1125 break;
|
|
0
|
1126
|
|
378
|
1127 case NGX_CMD_TERMINATE:
|
|
|
1128 ngx_terminate = 1;
|
|
|
1129 break;
|
|
0
|
1130
|
|
378
|
1131 case NGX_CMD_REOPEN:
|
|
|
1132 ngx_reopen = 1;
|
|
|
1133 break;
|
|
0
|
1134
|
|
378
|
1135 case NGX_CMD_OPEN_CHANNEL:
|
|
0
|
1136
|
|
378
|
1137 ngx_log_debug3(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1138 "get channel s:%i pid:%P fd:%d",
|
|
|
1139 ch.slot, ch.pid, ch.fd);
|
|
0
|
1140
|
|
378
|
1141 ngx_processes[ch.slot].pid = ch.pid;
|
|
|
1142 ngx_processes[ch.slot].channel[0] = ch.fd;
|
|
|
1143 break;
|
|
0
|
1144
|
|
378
|
1145 case NGX_CMD_CLOSE_CHANNEL:
|
|
0
|
1146
|
|
378
|
1147 ngx_log_debug4(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1148 "close channel s:%i pid:%P our:%P fd:%d",
|
|
|
1149 ch.slot, ch.pid, ngx_processes[ch.slot].pid,
|
|
|
1150 ngx_processes[ch.slot].channel[0]);
|
|
0
|
1151
|
|
378
|
1152 if (close(ngx_processes[ch.slot].channel[0]) == -1) {
|
|
|
1153 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
|
|
|
1154 "close() channel failed");
|
|
|
1155 }
|
|
|
1156
|
|
|
1157 ngx_processes[ch.slot].channel[0] = -1;
|
|
|
1158 break;
|
|
0
|
1159 }
|
|
|
1160 }
|
|
|
1161 }
|
|
|
1162
|
|
|
1163
|
|
|
1164 #if (NGX_THREADS)
|
|
|
1165
|
|
50
|
1166 static void
|
|
|
1167 ngx_wakeup_worker_threads(ngx_cycle_t *cycle)
|
|
0
|
1168 {
|
|
|
1169 ngx_int_t i;
|
|
|
1170 ngx_uint_t live;
|
|
|
1171
|
|
|
1172 for ( ;; ) {
|
|
|
1173
|
|
|
1174 live = 0;
|
|
|
1175
|
|
|
1176 for (i = 0; i < ngx_threads_n; i++) {
|
|
|
1177 if (ngx_threads[i].state < NGX_THREAD_EXIT) {
|
|
18
|
1178 if (ngx_cond_signal(ngx_threads[i].cv) == NGX_ERROR) {
|
|
|
1179 ngx_threads[i].state = NGX_THREAD_DONE;
|
|
0
|
1180
|
|
|
1181 } else {
|
|
|
1182 live = 1;
|
|
|
1183 }
|
|
|
1184 }
|
|
|
1185
|
|
|
1186 if (ngx_threads[i].state == NGX_THREAD_EXIT) {
|
|
|
1187 ngx_thread_join(ngx_threads[i].tid, NULL);
|
|
|
1188 ngx_threads[i].state = NGX_THREAD_DONE;
|
|
|
1189 }
|
|
|
1190 }
|
|
|
1191
|
|
|
1192 if (live == 0) {
|
|
|
1193 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
1194 "all worker threads are joined");
|
|
|
1195
|
|
|
1196 /* STUB */
|
|
|
1197 ngx_done_events(cycle);
|
|
|
1198 ngx_mutex_destroy(ngx_event_timer_mutex);
|
|
|
1199 ngx_mutex_destroy(ngx_posted_events_mutex);
|
|
|
1200
|
|
|
1201 return;
|
|
|
1202 }
|
|
|
1203
|
|
|
1204 ngx_sched_yield();
|
|
|
1205 }
|
|
|
1206 }
|
|
|
1207
|
|
|
1208
|
|
112
|
1209 static ngx_thread_value_t
|
|
50
|
1210 ngx_worker_thread_cycle(void *data)
|
|
0
|
1211 {
|
|
|
1212 ngx_thread_t *thr = data;
|
|
|
1213
|
|
|
1214 sigset_t set;
|
|
|
1215 ngx_err_t err;
|
|
|
1216 ngx_core_tls_t *tls;
|
|
|
1217 ngx_cycle_t *cycle;
|
|
|
1218
|
|
|
1219 cycle = (ngx_cycle_t *) ngx_cycle;
|
|
|
1220
|
|
|
1221 sigemptyset(&set);
|
|
|
1222 sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
|
|
|
1223 sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
|
|
|
1224 sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
|
|
|
1225
|
|
|
1226 err = ngx_thread_sigmask(SIG_BLOCK, &set, NULL);
|
|
|
1227 if (err) {
|
|
|
1228 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
1229 ngx_thread_sigmask_n " failed");
|
|
112
|
1230 return (ngx_thread_value_t) 1;
|
|
0
|
1231 }
|
|
|
1232
|
|
|
1233 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
1234 "thread " NGX_TID_T_FMT " started", ngx_thread_self());
|
|
0
|
1235
|
|
|
1236 ngx_setthrtitle("worker thread");
|
|
|
1237
|
|
50
|
1238 tls = ngx_calloc(sizeof(ngx_core_tls_t), cycle->log);
|
|
|
1239 if (tls == NULL) {
|
|
112
|
1240 return (ngx_thread_value_t) 1;
|
|
0
|
1241 }
|
|
|
1242
|
|
|
1243 err = ngx_thread_set_tls(ngx_core_tls_key, tls);
|
|
|
1244 if (err != 0) {
|
|
|
1245 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
1246 ngx_thread_set_tls_n " failed");
|
|
112
|
1247 return (ngx_thread_value_t) 1;
|
|
0
|
1248 }
|
|
|
1249
|
|
112
|
1250 ngx_mutex_lock(ngx_posted_events_mutex);
|
|
0
|
1251
|
|
|
1252 for ( ;; ) {
|
|
|
1253 thr->state = NGX_THREAD_FREE;
|
|
|
1254
|
|
|
1255 if (ngx_cond_wait(thr->cv, ngx_posted_events_mutex) == NGX_ERROR) {
|
|
112
|
1256 return (ngx_thread_value_t) 1;
|
|
0
|
1257 }
|
|
|
1258
|
|
|
1259 if (ngx_terminate) {
|
|
|
1260 thr->state = NGX_THREAD_EXIT;
|
|
|
1261
|
|
|
1262 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
|
1263
|
|
|
1264 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
1265 "thread " NGX_TID_T_FMT " is done",
|
|
|
1266 ngx_thread_self());
|
|
0
|
1267
|
|
112
|
1268 return (ngx_thread_value_t) 0;
|
|
0
|
1269 }
|
|
|
1270
|
|
|
1271 thr->state = NGX_THREAD_BUSY;
|
|
|
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_event_thread_process_posted(cycle) == NGX_ERROR) {
|
|
112
|
1278 return (ngx_thread_value_t) 1;
|
|
0
|
1279 }
|
|
|
1280
|
|
|
1281 if (ngx_process_changes) {
|
|
|
1282 if (ngx_process_changes(cycle, 1) == NGX_ERROR) {
|
|
112
|
1283 return (ngx_thread_value_t) 1;
|
|
0
|
1284 }
|
|
|
1285 }
|
|
|
1286 }
|
|
|
1287 }
|
|
|
1288
|
|
|
1289 #endif
|
|
16
|
1290
|
|
|
1291
|
|
50
|
1292 static void
|
|
468
|
1293 ngx_cache_manager_process_cycle(ngx_cycle_t *cycle, void *data)
|
|
16
|
1294 {
|
|
514
|
1295 ngx_cache_manager_ctx_t *ctx = data;
|
|
|
1296
|
|
464
|
1297 void *ident[4];
|
|
|
1298 ngx_event_t ev;
|
|
|
1299
|
|
|
1300 cycle->connection_n = 512;
|
|
16
|
1301
|
|
552
|
1302 ngx_process = NGX_PROCESS_HELPER;
|
|
|
1303
|
|
22
|
1304 ngx_worker_process_init(cycle, 0);
|
|
16
|
1305
|
|
464
|
1306 ngx_close_listening_sockets(cycle);
|
|
16
|
1307
|
|
464
|
1308 ngx_memzero(&ev, sizeof(ngx_event_t));
|
|
514
|
1309 ev.handler = ctx->handler;
|
|
464
|
1310 ev.data = ident;
|
|
|
1311 ev.log = cycle->log;
|
|
|
1312 ident[3] = (void *) -1;
|
|
16
|
1313
|
|
464
|
1314 ngx_use_accept_mutex = 0;
|
|
|
1315
|
|
514
|
1316 ngx_setproctitle(ctx->name);
|
|
464
|
1317
|
|
514
|
1318 ngx_add_timer(&ev, ctx->delay);
|
|
16
|
1319
|
|
|
1320 for ( ;; ) {
|
|
|
1321
|
|
|
1322 if (ngx_terminate || ngx_quit) {
|
|
26
|
1323 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
16
|
1324 exit(0);
|
|
|
1325 }
|
|
|
1326
|
|
|
1327 if (ngx_reopen) {
|
|
|
1328 ngx_reopen = 0;
|
|
26
|
1329 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
|
16
|
1330 ngx_reopen_files(cycle, -1);
|
|
|
1331 }
|
|
|
1332
|
|
112
|
1333 ngx_process_events_and_timers(cycle);
|
|
16
|
1334 }
|
|
|
1335 }
|
|
50
|
1336
|
|
464
|
1337
|
|
|
1338 static void
|
|
468
|
1339 ngx_cache_manager_process_handler(ngx_event_t *ev)
|
|
464
|
1340 {
|
|
|
1341 time_t next, n;
|
|
|
1342 ngx_uint_t i;
|
|
|
1343 ngx_path_t **path;
|
|
|
1344
|
|
|
1345 next = 60 * 60;
|
|
|
1346
|
|
|
1347 path = ngx_cycle->pathes.elts;
|
|
|
1348 for (i = 0; i < ngx_cycle->pathes.nelts; i++) {
|
|
|
1349
|
|
468
|
1350 if (path[i]->manager) {
|
|
|
1351 n = path[i]->manager(path[i]->data);
|
|
464
|
1352
|
|
|
1353 next = (n <= next) ? n : next;
|
|
|
1354
|
|
566
|
1355 ngx_time_update();
|
|
464
|
1356 }
|
|
|
1357 }
|
|
|
1358
|
|
|
1359 if (next == 0) {
|
|
|
1360 next = 1;
|
|
|
1361 }
|
|
|
1362
|
|
|
1363 ngx_add_timer(ev, next * 1000);
|
|
|
1364 }
|
|
514
|
1365
|
|
|
1366
|
|
|
1367 static void
|
|
|
1368 ngx_cache_loader_process_handler(ngx_event_t *ev)
|
|
|
1369 {
|
|
|
1370 ngx_uint_t i;
|
|
|
1371 ngx_path_t **path;
|
|
|
1372 ngx_cycle_t *cycle;
|
|
|
1373
|
|
|
1374 cycle = (ngx_cycle_t *) ngx_cycle;
|
|
|
1375
|
|
|
1376 path = cycle->pathes.elts;
|
|
|
1377 for (i = 0; i < cycle->pathes.nelts; i++) {
|
|
|
1378
|
|
|
1379 if (ngx_terminate || ngx_quit) {
|
|
|
1380 break;
|
|
|
1381 }
|
|
|
1382
|
|
|
1383 if (path[i]->loader) {
|
|
|
1384 path[i]->loader(path[i]->data);
|
|
566
|
1385 ngx_time_update();
|
|
514
|
1386 }
|
|
|
1387 }
|
|
|
1388
|
|
|
1389 exit(0);
|
|
|
1390 }
|
