Mercurial > hg > nginx
annotate src/os/unix/ngx_process.c @ 539:371c1cee100d release-0.1.44
nginx-0.1.44-RELEASE import
*) Feature: the IMAP/POP3 proxy supports SSL.
*) Feature: the "proxy_timeout" directive of the ngx_imap_proxy_module.
*) Feature: the "userid_mark" directive.
*) Feature: the $remote_user variable value is determined independently
of authorization use.
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Tue, 06 Sep 2005 16:09:32 +0000 |
| parents | 417a087c9c4d |
| children | 511a89da35ad |
| rev | line source |
|---|---|
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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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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12 |
| 539 | 13 typedef struct { |
| 14 int signo; | |
| 15 char *signame; | |
| 16 void (*handler)(int signo); | |
| 17 } ngx_signal_t; | |
| 18 | |
| 19 | |
| 20 | |
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21 static void ngx_execute_proc(ngx_cycle_t *cycle, void *data); |
| 539 | 22 static void ngx_signal_handler(int signo); |
| 23 static void ngx_process_get_status(void); | |
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24 |
| 452 | 25 |
| 26 int ngx_argc; | |
| 27 char **ngx_argv; | |
| 28 char **ngx_os_argv; | |
| 29 | |
| 30 ngx_int_t ngx_process_slot; | |
| 31 ngx_socket_t ngx_channel; | |
| 32 ngx_int_t ngx_last_process; | |
| 33 ngx_process_t ngx_processes[NGX_MAX_PROCESSES]; | |
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34 |
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35 |
| 539 | 36 ngx_signal_t signals[] = { |
| 37 { ngx_signal_value(NGX_RECONFIGURE_SIGNAL), | |
| 38 "SIG" ngx_value(NGX_RECONFIGURE_SIGNAL), | |
| 39 ngx_signal_handler }, | |
| 40 | |
| 41 { ngx_signal_value(NGX_REOPEN_SIGNAL), | |
| 42 "SIG" ngx_value(NGX_REOPEN_SIGNAL), | |
| 43 ngx_signal_handler }, | |
| 44 | |
| 45 { ngx_signal_value(NGX_NOACCEPT_SIGNAL), | |
| 46 "SIG" ngx_value(NGX_NOACCEPT_SIGNAL), | |
| 47 ngx_signal_handler }, | |
| 48 | |
| 49 { ngx_signal_value(NGX_TERMINATE_SIGNAL), | |
| 50 "SIG" ngx_value(NGX_TERMINATE_SIGNAL), | |
| 51 ngx_signal_handler }, | |
| 52 | |
| 53 { ngx_signal_value(NGX_SHUTDOWN_SIGNAL), | |
| 54 "SIG" ngx_value(NGX_SHUTDOWN_SIGNAL), | |
| 55 ngx_signal_handler }, | |
| 56 | |
| 57 { ngx_signal_value(NGX_CHANGEBIN_SIGNAL), | |
| 58 "SIG" ngx_value(NGX_CHANGEBIN_SIGNAL), | |
| 59 ngx_signal_handler }, | |
| 60 | |
| 61 { SIGALRM, "SIGALRM", ngx_signal_handler }, | |
| 62 | |
| 63 { SIGINT, "SIGINT", ngx_signal_handler }, | |
| 64 | |
| 65 { SIGIO, "SIGIO", ngx_signal_handler }, | |
| 66 | |
| 67 { SIGCHLD, "SIGCHLD", ngx_signal_handler }, | |
| 68 | |
| 69 { SIGPIPE, "SIGPIPE, SIG_IGN", SIG_IGN }, | |
| 70 | |
| 71 { 0, NULL, NULL } | |
| 72 }; | |
| 73 | |
| 74 | |
| 515 | 75 ngx_pid_t |
| 76 ngx_spawn_process(ngx_cycle_t *cycle, ngx_spawn_proc_pt proc, void *data, | |
| 77 char *name, ngx_int_t respawn) | |
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78 { |
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79 u_long on; |
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80 ngx_pid_t pid; |
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81 ngx_int_t s; |
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82 |
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83 if (respawn >= 0) { |
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84 s = respawn; |
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85 |
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86 } else { |
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87 for (s = 0; s < ngx_last_process; s++) { |
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88 if (ngx_processes[s].pid == -1) { |
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89 break; |
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90 } |
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91 } |
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92 |
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93 if (s == NGX_MAX_PROCESSES) { |
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94 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, |
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95 "no more than %d processes can be spawned", |
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96 NGX_MAX_PROCESSES); |
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97 return NGX_ERROR; |
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98 } |
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99 } |
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100 |
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101 |
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102 if (respawn != NGX_PROCESS_DETACHED) { |
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103 |
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104 /* Solaris 9 still has no AF_LOCAL */ |
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105 |
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106 if (socketpair(AF_UNIX, SOCK_STREAM, 0, ngx_processes[s].channel) == -1) |
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107 { |
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108 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
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109 "socketpair() failed while spawning \"%s\"", name); |
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110 return NGX_ERROR; |
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111 } |
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112 |
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113 ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0, |
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114 "channel %d:%d", |
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115 ngx_processes[s].channel[0], |
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116 ngx_processes[s].channel[1]); |
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117 |
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118 if (ngx_nonblocking(ngx_processes[s].channel[0]) == -1) { |
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119 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
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120 ngx_nonblocking_n " failed while spawning \"%s\"", |
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121 name); |
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122 ngx_close_channel(ngx_processes[s].channel, cycle->log); |
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123 return NGX_ERROR; |
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124 } |
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125 |
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126 if (ngx_nonblocking(ngx_processes[s].channel[1]) == -1) { |
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127 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
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128 ngx_nonblocking_n " failed while spawning \"%s\"", |
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129 name); |
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130 ngx_close_channel(ngx_processes[s].channel, cycle->log); |
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131 return NGX_ERROR; |
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132 } |
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133 |
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134 on = 1; |
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135 if (ioctl(ngx_processes[s].channel[0], FIOASYNC, &on) == -1) { |
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136 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
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137 "ioctl(FIOASYNC) failed while spawning \"%s\"", name); |
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138 ngx_close_channel(ngx_processes[s].channel, cycle->log); |
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139 return NGX_ERROR; |
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140 } |
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141 |
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142 if (fcntl(ngx_processes[s].channel[0], F_SETOWN, ngx_pid) == -1) { |
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143 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
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144 "fcntl(F_SETOWN) failed while spawning \"%s\"", name); |
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145 ngx_close_channel(ngx_processes[s].channel, cycle->log); |
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Igor Sysoev <igor@sysoev.ru>
parents:
360
diff
changeset
|
146 return NGX_ERROR; |
|
fd24ba70e1b3
nginx-0.0.7-2004-06-23-09:54:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
360
diff
changeset
|
147 } |
|
fd24ba70e1b3
nginx-0.0.7-2004-06-23-09:54:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
360
diff
changeset
|
148 |
|
366
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
149 if (fcntl(ngx_processes[s].channel[0], F_SETFD, FD_CLOEXEC) == -1) { |
|
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
150 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
|
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
151 "fcntl(FD_CLOEXEC) failed while spawning \"%s\"", |
|
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
152 name); |
|
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
153 ngx_close_channel(ngx_processes[s].channel, cycle->log); |
|
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
154 return NGX_ERROR; |
|
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
155 } |
|
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
156 |
|
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
157 if (fcntl(ngx_processes[s].channel[1], F_SETFD, FD_CLOEXEC) == -1) { |
|
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
158 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
|
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
159 "fcntl(FD_CLOEXEC) failed while spawning \"%s\"", |
|
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
160 name); |
|
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
161 ngx_close_channel(ngx_processes[s].channel, cycle->log); |
|
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
162 return NGX_ERROR; |
|
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
163 } |
|
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
164 |
|
365
fd24ba70e1b3
nginx-0.0.7-2004-06-23-09:54:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
360
diff
changeset
|
165 ngx_channel = ngx_processes[s].channel[1]; |
|
fd24ba70e1b3
nginx-0.0.7-2004-06-23-09:54:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
360
diff
changeset
|
166 |
|
fd24ba70e1b3
nginx-0.0.7-2004-06-23-09:54:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
360
diff
changeset
|
167 } else { |
|
fd24ba70e1b3
nginx-0.0.7-2004-06-23-09:54:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
360
diff
changeset
|
168 ngx_processes[s].channel[0] = -1; |
|
fd24ba70e1b3
nginx-0.0.7-2004-06-23-09:54:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
360
diff
changeset
|
169 ngx_processes[s].channel[1] = -1; |
|
360
239e37d44a34
nginx-0.0.7-2004-06-18-20:22:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
355
diff
changeset
|
170 } |
|
239e37d44a34
nginx-0.0.7-2004-06-18-20:22:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
355
diff
changeset
|
171 |
|
239e37d44a34
nginx-0.0.7-2004-06-18-20:22:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
355
diff
changeset
|
172 ngx_process_slot = s; |
|
354
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
173 |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
174 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
175 pid = fork(); |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
176 |
|
354
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
177 switch (pid) { |
|
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
178 |
|
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
179 case -1: |
|
218
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
180 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
181 "fork() failed while spawning \"%s\"", name); |
|
365
fd24ba70e1b3
nginx-0.0.7-2004-06-23-09:54:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
360
diff
changeset
|
182 ngx_close_channel(ngx_processes[s].channel, cycle->log); |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
183 return NGX_ERROR; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
184 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
185 case 0: |
|
249
2a0540287298
nginx-0.0.2-2004-02-03-19:43:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
248
diff
changeset
|
186 ngx_pid = ngx_getpid(); |
|
218
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
187 proc(cycle, data); |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
188 break; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
189 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
190 default: |
|
195
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
191
diff
changeset
|
191 break; |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
192 } |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
193 |
| 477 | 194 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start %s %P", name, pid); |
|
218
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
195 |
|
354
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
196 ngx_processes[s].pid = pid; |
|
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
197 ngx_processes[s].exited = 0; |
|
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
198 |
|
218
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
199 if (respawn >= 0) { |
|
225
2e9a8a14a0cf
nginx-0.0.1-2004-01-13-19:43:23 import
Igor Sysoev <igor@sysoev.ru>
parents:
224
diff
changeset
|
200 return pid; |
|
218
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
201 } |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
202 |
|
354
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
203 ngx_processes[s].proc = proc; |
|
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
204 ngx_processes[s].data = data; |
|
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
205 ngx_processes[s].name = name; |
|
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
206 ngx_processes[s].exiting = 0; |
|
318
56496082668b
nginx-0.0.3-2004-04-16-09:14:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
207 |
|
56496082668b
nginx-0.0.3-2004-04-16-09:14:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
208 switch (respawn) { |
|
56496082668b
nginx-0.0.3-2004-04-16-09:14:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
209 |
|
56496082668b
nginx-0.0.3-2004-04-16-09:14:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
210 case NGX_PROCESS_RESPAWN: |
|
354
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
211 ngx_processes[s].respawn = 1; |
|
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
212 ngx_processes[s].just_respawn = 0; |
|
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
213 ngx_processes[s].detached = 0; |
|
318
56496082668b
nginx-0.0.3-2004-04-16-09:14:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
214 break; |
|
56496082668b
nginx-0.0.3-2004-04-16-09:14:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
215 |
|
56496082668b
nginx-0.0.3-2004-04-16-09:14:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
216 case NGX_PROCESS_JUST_RESPAWN: |
|
354
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
217 ngx_processes[s].respawn = 1; |
|
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
218 ngx_processes[s].just_respawn = 1; |
|
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
219 ngx_processes[s].detached = 0; |
|
318
56496082668b
nginx-0.0.3-2004-04-16-09:14:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
220 break; |
|
56496082668b
nginx-0.0.3-2004-04-16-09:14:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
221 |
|
56496082668b
nginx-0.0.3-2004-04-16-09:14:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
222 case NGX_PROCESS_DETACHED: |
|
354
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
223 ngx_processes[s].respawn = 0; |
|
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
224 ngx_processes[s].just_respawn = 0; |
|
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
225 ngx_processes[s].detached = 1; |
|
318
56496082668b
nginx-0.0.3-2004-04-16-09:14:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
226 break; |
|
56496082668b
nginx-0.0.3-2004-04-16-09:14:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
227 } |
|
56496082668b
nginx-0.0.3-2004-04-16-09:14:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
228 |
|
389
537de4dca8ca
nginx-0.0.7-2004-07-13-21:59:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
366
diff
changeset
|
229 if (s == ngx_last_process) { |
|
537de4dca8ca
nginx-0.0.7-2004-07-13-21:59:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
366
diff
changeset
|
230 ngx_last_process++; |
|
537de4dca8ca
nginx-0.0.7-2004-07-13-21:59:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
366
diff
changeset
|
231 } |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
232 |
|
225
2e9a8a14a0cf
nginx-0.0.1-2004-01-13-19:43:23 import
Igor Sysoev <igor@sysoev.ru>
parents:
224
diff
changeset
|
233 return pid; |
|
218
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
234 } |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
235 |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
236 |
| 515 | 237 ngx_pid_t |
| 238 ngx_execute(ngx_cycle_t *cycle, ngx_exec_ctx_t *ctx) | |
|
218
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
239 { |
|
279
b79f021a644a
nginx-0.0.2-2004-03-04-19:34:23 import
Igor Sysoev <igor@sysoev.ru>
parents:
272
diff
changeset
|
240 return ngx_spawn_process(cycle, ngx_execute_proc, ctx, ctx->name, |
|
226
b0c1e21e68db
nginx-0.0.1-2004-01-14-00:33:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
225
diff
changeset
|
241 NGX_PROCESS_DETACHED); |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
242 } |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
243 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
244 |
| 515 | 245 static void |
| 246 ngx_execute_proc(ngx_cycle_t *cycle, void *data) | |
|
218
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
247 { |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
248 ngx_exec_ctx_t *ctx = data; |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
249 |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
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250 if (execve(ctx->path, ctx->argv, ctx->envp) == -1) { |
|
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251 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
|
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252 "execve() failed while executing %s \"%s\"", |
|
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253 ctx->name, ctx->path); |
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254 } |
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255 |
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256 exit(1); |
|
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257 } |
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258 |
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259 |
| 539 | 260 ngx_int_t |
| 261 ngx_init_signals(ngx_log_t *log) | |
| 262 { | |
| 263 ngx_signal_t *sig; | |
| 264 struct sigaction sa; | |
| 265 | |
| 266 for (sig = signals; sig->signo != 0; sig++) { | |
| 267 ngx_memzero(&sa, sizeof(struct sigaction)); | |
| 268 sa.sa_handler = sig->handler; | |
| 269 sigemptyset(&sa.sa_mask); | |
| 270 if (sigaction(sig->signo, &sa, NULL) == -1) { | |
| 271 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, | |
| 272 "sigaction(%s) failed", sig->signame); | |
| 273 return NGX_ERROR; | |
| 274 } | |
| 275 } | |
| 276 | |
| 277 return NGX_OK; | |
| 278 } | |
| 279 | |
| 280 | |
| 515 | 281 void |
| 539 | 282 ngx_signal_handler(int signo) |
| 283 { | |
| 284 char *action; | |
| 285 struct timeval tv; | |
| 286 ngx_int_t ignore; | |
| 287 ngx_err_t err; | |
| 288 ngx_signal_t *sig; | |
| 289 | |
| 290 ignore = 0; | |
| 291 | |
| 292 err = ngx_errno; | |
| 293 | |
| 294 for (sig = signals; sig->signo != 0; sig++) { | |
| 295 if (sig->signo == signo) { | |
| 296 break; | |
| 297 } | |
| 298 } | |
| 299 | |
| 300 ngx_gettimeofday(&tv); | |
| 301 ngx_time_update(tv.tv_sec); | |
| 302 | |
| 303 action = ""; | |
| 304 | |
| 305 switch (ngx_process) { | |
| 306 | |
| 307 case NGX_PROCESS_MASTER: | |
| 308 case NGX_PROCESS_SINGLE: | |
| 309 switch (signo) { | |
| 310 | |
| 311 case ngx_signal_value(NGX_SHUTDOWN_SIGNAL): | |
| 312 ngx_quit = 1; | |
| 313 action = ", shutting down"; | |
| 314 break; | |
| 315 | |
| 316 case ngx_signal_value(NGX_TERMINATE_SIGNAL): | |
| 317 case SIGINT: | |
| 318 ngx_terminate = 1; | |
| 319 action = ", exiting"; | |
| 320 break; | |
| 321 | |
| 322 case ngx_signal_value(NGX_NOACCEPT_SIGNAL): | |
| 323 ngx_noaccept = 1; | |
| 324 action = ", stop accepting connections"; | |
| 325 break; | |
| 326 | |
| 327 case ngx_signal_value(NGX_RECONFIGURE_SIGNAL): | |
| 328 ngx_reconfigure = 1; | |
| 329 action = ", reconfiguring"; | |
| 330 break; | |
| 331 | |
| 332 case ngx_signal_value(NGX_REOPEN_SIGNAL): | |
| 333 ngx_reopen = 1; | |
| 334 action = ", reopening logs"; | |
| 335 break; | |
| 336 | |
| 337 case ngx_signal_value(NGX_CHANGEBIN_SIGNAL): | |
| 338 if (getppid() > 1 || ngx_new_binary > 0) { | |
| 339 | |
| 340 /* | |
| 341 * Ignore the signal in the new binary if its parent is | |
| 342 * not the init process, i.e. the old binary's process | |
| 343 * is still running. Or ingore the signal in the old binary's | |
| 344 * process if the new binary's process is already running. | |
| 345 */ | |
| 346 | |
| 347 action = ", ignoring"; | |
| 348 ignore = 1; | |
| 349 break; | |
| 350 } | |
| 351 | |
| 352 ngx_change_binary = 1; | |
| 353 action = ", changing binary"; | |
| 354 break; | |
| 355 | |
| 356 case SIGALRM: | |
| 357 if (!ngx_terminate) { | |
| 358 ngx_timer = 1; | |
| 359 action = ", shutting down old worker processes"; | |
| 360 } | |
| 361 | |
| 362 break; | |
| 363 | |
| 364 case SIGIO: | |
| 365 ngx_sigio = 1; | |
| 366 break; | |
| 367 | |
| 368 case SIGCHLD: | |
| 369 ngx_reap = 1; | |
| 370 break; | |
| 371 } | |
| 372 | |
| 373 break; | |
| 374 | |
| 375 case NGX_PROCESS_WORKER: | |
| 376 switch (signo) { | |
| 377 | |
| 378 case ngx_signal_value(NGX_NOACCEPT_SIGNAL): | |
| 379 ngx_debug_quit = 1; | |
| 380 case ngx_signal_value(NGX_SHUTDOWN_SIGNAL): | |
| 381 ngx_quit = 1; | |
| 382 action = ", shutting down"; | |
| 383 break; | |
| 384 | |
| 385 case ngx_signal_value(NGX_TERMINATE_SIGNAL): | |
| 386 case SIGINT: | |
| 387 ngx_terminate = 1; | |
| 388 action = ", exiting"; | |
| 389 break; | |
| 390 | |
| 391 case ngx_signal_value(NGX_REOPEN_SIGNAL): | |
| 392 ngx_reopen = 1; | |
| 393 action = ", reopening logs"; | |
| 394 break; | |
| 395 | |
| 396 case ngx_signal_value(NGX_RECONFIGURE_SIGNAL): | |
| 397 case ngx_signal_value(NGX_CHANGEBIN_SIGNAL): | |
| 398 case SIGIO: | |
| 399 action = ", ignoring"; | |
| 400 break; | |
| 401 } | |
| 402 | |
| 403 break; | |
| 404 } | |
| 405 | |
| 406 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, | |
| 407 "signal %d (%s) received%s", signo, sig->signame, action); | |
| 408 | |
| 409 if (ignore) { | |
| 410 ngx_log_error(NGX_LOG_CRIT, ngx_cycle->log, 0, | |
| 411 "the changing binary signal is ignored: " | |
| 412 "you should shutdown or terminate " | |
| 413 "before either old or new binary's process"); | |
| 414 } | |
| 415 | |
| 416 if (signo == SIGCHLD) { | |
| 417 ngx_process_get_status(); | |
| 418 } | |
| 419 | |
| 420 ngx_set_errno(err); | |
| 421 } | |
| 422 | |
| 423 | |
| 424 static void | |
| 515 | 425 ngx_process_get_status(void) |
|
218
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426 { |
|
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|
427 int status; |
|
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parents:
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|
428 char *process; |
|
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parents:
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diff
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|
429 ngx_pid_t pid; |
|
05592fd7a436
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parents:
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diff
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|
430 ngx_err_t err; |
|
354
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
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parents:
318
diff
changeset
|
431 ngx_int_t i; |
|
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
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parents:
318
diff
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|
432 ngx_uint_t one; |
| 477 | 433 |
|
191
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nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
434 one = 0; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
435 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
436 for ( ;; ) { |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
437 pid = waitpid(-1, &status, WNOHANG); |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
438 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
439 if (pid == 0) { |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
440 return; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
441 } |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
442 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
443 if (pid == -1) { |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
444 err = ngx_errno; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
445 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
446 if (err == NGX_EINTR) { |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
447 continue; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
448 } |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
449 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
450 if (err == NGX_ECHILD && one) { |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
451 return; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
452 } |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
453 |
| 455 | 454 #if (NGX_SOLARIS) |
| 452 | 455 |
| 456 /* | |
| 457 * Solaris always calls the signal handler for each exited process | |
| 458 * despite waitpid() may be already called for this process | |
| 459 */ | |
| 460 | |
| 461 if (err == NGX_ECHILD) { | |
| 462 ngx_log_error(NGX_LOG_INFO, ngx_cycle->log, errno, | |
| 463 "waitpid() failed"); | |
| 464 } | |
| 465 | |
| 466 #endif | |
| 467 | |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
468 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, errno, |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
469 "waitpid() failed"); |
| 452 | 470 |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
471 return; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
472 } |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
473 |
|
306
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
279
diff
changeset
|
474 |
|
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
279
diff
changeset
|
475 if (ngx_accept_mutex_ptr) { |
|
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
279
diff
changeset
|
476 |
|
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
279
diff
changeset
|
477 /* |
|
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
279
diff
changeset
|
478 * unlock the accept mutex if the abnormally exited process |
|
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
279
diff
changeset
|
479 * held it |
|
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
279
diff
changeset
|
480 */ |
|
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
279
diff
changeset
|
481 |
|
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
279
diff
changeset
|
482 ngx_atomic_cmp_set(ngx_accept_mutex_ptr, pid, 0); |
|
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
279
diff
changeset
|
483 } |
|
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
279
diff
changeset
|
484 |
|
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
279
diff
changeset
|
485 |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
486 one = 1; |
|
389
537de4dca8ca
nginx-0.0.7-2004-07-13-21:59:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
366
diff
changeset
|
487 process = "unknown process"; |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
488 |
|
218
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
489 for (i = 0; i < ngx_last_process; i++) { |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
490 if (ngx_processes[i].pid == pid) { |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
changeset
|
491 ngx_processes[i].status = status; |
|
222
99df0edb63ed
nginx-0.0.1-2004-01-09-00:02:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
221
diff
changeset
|
492 ngx_processes[i].exited = 1; |
|
218
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
changeset
|
493 process = ngx_processes[i].name; |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
changeset
|
494 break; |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
495 } |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
496 } |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
497 |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
498 if (WTERMSIG(status)) { |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
499 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, |
| 461 | 500 "%s %P exited on signal %d%s", |
|
218
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
501 process, pid, WTERMSIG(status), |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
502 WCOREDUMP(status) ? " (core dumped)" : ""); |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
503 |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
504 } else { |
| 477 | 505 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, |
| 461 | 506 "%s %P exited with code %d", |
|
218
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
507 process, pid, WEXITSTATUS(status)); |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
508 } |
|
234
cd71b95716b4
nginx-0.0.1-2004-01-20-23:40:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
227
diff
changeset
|
509 |
|
cd71b95716b4
nginx-0.0.1-2004-01-20-23:40:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
227
diff
changeset
|
510 if (WEXITSTATUS(status) == 2 && ngx_processes[i].respawn) { |
|
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nginx-0.0.1-2004-01-20-23:40:08 import
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511 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, |
| 461 | 512 "%s %P exited with fatal code %d and could not respawn", |
| 513 process, pid, WEXITSTATUS(status)); | |
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234
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514 ngx_processes[i].respawn = 0; |
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nginx-0.0.1-2004-01-20-23:40:08 import
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515 } |
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191
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nginx-0.0.1-2003-11-19-19:26:41 import
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516 } |
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nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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517 } |
| 461 | 518 |
| 519 | |
| 515 | 520 void |
| 521 ngx_debug_point(void) | |
| 461 | 522 { |
| 523 ngx_core_conf_t *ccf; | |
| 524 | |
| 525 ccf = (ngx_core_conf_t *) ngx_get_conf(ngx_cycle->conf_ctx, | |
| 526 ngx_core_module); | |
| 527 | |
| 528 switch (ccf->debug_points) { | |
| 529 | |
| 530 case NGX_DEBUG_POINTS_STOP: | |
| 531 raise(SIGSTOP); | |
| 532 break; | |
| 533 | |
| 534 case NGX_DEBUG_POINTS_ABORT: | |
| 535 abort(); | |
| 536 } | |
| 537 } |