Mercurial > hg > nginx
annotate src/os/unix/ngx_process.c @ 6929:3069dd358ba2
Cancelable timers are now preserved if there are other timers.
There is no need to cancel timers early if there are other timers blocking
shutdown anyway. Preserving such timers allows nginx to continue some
periodic work till the shutdown is actually possible.
With the new approach, timers with ev->cancelable are simply ignored when
checking if there are any timers left during shutdown.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Tue, 07 Mar 2017 18:51:15 +0300 |
| parents | 3a50ccd94333 |
| children | e54c336d95aa |
| rev | line source |
|---|---|
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
| 4412 | 4 * Copyright (C) Nginx, Inc. |
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5 */ |
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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 |
| 539 | 14 typedef struct { |
| 3681 | 15 int signo; |
| 16 char *signame; | |
| 17 char *name; | |
| 18 void (*handler)(int signo); | |
| 539 | 19 } ngx_signal_t; |
| 20 | |
| 21 | |
| 22 | |
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23 static void ngx_execute_proc(ngx_cycle_t *cycle, void *data); |
| 539 | 24 static void ngx_signal_handler(int signo); |
| 25 static void ngx_process_get_status(void); | |
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26 static void ngx_unlock_mutexes(ngx_pid_t pid); |
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27 |
| 452 | 28 |
| 29 int ngx_argc; | |
| 30 char **ngx_argv; | |
| 31 char **ngx_os_argv; | |
| 32 | |
| 33 ngx_int_t ngx_process_slot; | |
| 34 ngx_socket_t ngx_channel; | |
| 35 ngx_int_t ngx_last_process; | |
| 36 ngx_process_t ngx_processes[NGX_MAX_PROCESSES]; | |
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37 |
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38 |
| 539 | 39 ngx_signal_t signals[] = { |
| 40 { ngx_signal_value(NGX_RECONFIGURE_SIGNAL), | |
| 41 "SIG" ngx_value(NGX_RECONFIGURE_SIGNAL), | |
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42 "reload", |
| 539 | 43 ngx_signal_handler }, |
| 44 | |
| 45 { ngx_signal_value(NGX_REOPEN_SIGNAL), | |
| 46 "SIG" ngx_value(NGX_REOPEN_SIGNAL), | |
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47 "reopen", |
| 539 | 48 ngx_signal_handler }, |
| 49 | |
| 50 { ngx_signal_value(NGX_NOACCEPT_SIGNAL), | |
| 51 "SIG" ngx_value(NGX_NOACCEPT_SIGNAL), | |
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52 "", |
| 539 | 53 ngx_signal_handler }, |
| 54 | |
| 55 { ngx_signal_value(NGX_TERMINATE_SIGNAL), | |
| 56 "SIG" ngx_value(NGX_TERMINATE_SIGNAL), | |
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57 "stop", |
| 539 | 58 ngx_signal_handler }, |
| 59 | |
| 60 { ngx_signal_value(NGX_SHUTDOWN_SIGNAL), | |
| 61 "SIG" ngx_value(NGX_SHUTDOWN_SIGNAL), | |
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62 "quit", |
| 539 | 63 ngx_signal_handler }, |
| 64 | |
| 65 { ngx_signal_value(NGX_CHANGEBIN_SIGNAL), | |
| 66 "SIG" ngx_value(NGX_CHANGEBIN_SIGNAL), | |
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67 "", |
| 539 | 68 ngx_signal_handler }, |
| 69 | |
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70 { SIGALRM, "SIGALRM", "", ngx_signal_handler }, |
| 539 | 71 |
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72 { SIGINT, "SIGINT", "", ngx_signal_handler }, |
| 539 | 73 |
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74 { SIGIO, "SIGIO", "", ngx_signal_handler }, |
| 539 | 75 |
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76 { SIGCHLD, "SIGCHLD", "", ngx_signal_handler }, |
| 539 | 77 |
| 3045 | 78 { SIGSYS, "SIGSYS, SIG_IGN", "", SIG_IGN }, |
| 79 | |
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80 { SIGPIPE, "SIGPIPE, SIG_IGN", "", SIG_IGN }, |
| 539 | 81 |
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82 { 0, NULL, "", NULL } |
| 539 | 83 }; |
| 84 | |
| 85 | |
| 515 | 86 ngx_pid_t |
| 87 ngx_spawn_process(ngx_cycle_t *cycle, ngx_spawn_proc_pt proc, void *data, | |
| 88 char *name, ngx_int_t respawn) | |
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89 { |
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90 u_long on; |
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91 ngx_pid_t pid; |
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92 ngx_int_t s; |
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93 |
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94 if (respawn >= 0) { |
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95 s = respawn; |
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96 |
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97 } else { |
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98 for (s = 0; s < ngx_last_process; s++) { |
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99 if (ngx_processes[s].pid == -1) { |
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100 break; |
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101 } |
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102 } |
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103 |
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104 if (s == NGX_MAX_PROCESSES) { |
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105 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, |
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106 "no more than %d processes can be spawned", |
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107 NGX_MAX_PROCESSES); |
| 543 | 108 return NGX_INVALID_PID; |
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109 } |
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110 } |
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111 |
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112 |
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113 if (respawn != NGX_PROCESS_DETACHED) { |
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114 |
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115 /* Solaris 9 still has no AF_LOCAL */ |
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116 |
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117 if (socketpair(AF_UNIX, SOCK_STREAM, 0, ngx_processes[s].channel) == -1) |
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118 { |
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119 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
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120 "socketpair() failed while spawning \"%s\"", name); |
| 543 | 121 return NGX_INVALID_PID; |
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122 } |
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123 |
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124 ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0, |
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125 "channel %d:%d", |
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126 ngx_processes[s].channel[0], |
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127 ngx_processes[s].channel[1]); |
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128 |
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129 if (ngx_nonblocking(ngx_processes[s].channel[0]) == -1) { |
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130 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
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131 ngx_nonblocking_n " failed while spawning \"%s\"", |
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132 name); |
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133 ngx_close_channel(ngx_processes[s].channel, cycle->log); |
| 543 | 134 return NGX_INVALID_PID; |
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135 } |
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136 |
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137 if (ngx_nonblocking(ngx_processes[s].channel[1]) == -1) { |
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138 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
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139 ngx_nonblocking_n " failed while spawning \"%s\"", |
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140 name); |
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141 ngx_close_channel(ngx_processes[s].channel, cycle->log); |
| 543 | 142 return NGX_INVALID_PID; |
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143 } |
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144 |
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145 on = 1; |
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146 if (ioctl(ngx_processes[s].channel[0], FIOASYNC, &on) == -1) { |
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147 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
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148 "ioctl(FIOASYNC) failed while spawning \"%s\"", name); |
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|
149 ngx_close_channel(ngx_processes[s].channel, cycle->log); |
| 543 | 150 return NGX_INVALID_PID; |
|
365
fd24ba70e1b3
nginx-0.0.7-2004-06-23-09:54:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
360
diff
changeset
|
151 } |
|
fd24ba70e1b3
nginx-0.0.7-2004-06-23-09:54:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
360
diff
changeset
|
152 |
|
fd24ba70e1b3
nginx-0.0.7-2004-06-23-09:54:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
360
diff
changeset
|
153 if (fcntl(ngx_processes[s].channel[0], F_SETOWN, ngx_pid) == -1) { |
|
fd24ba70e1b3
nginx-0.0.7-2004-06-23-09:54:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
360
diff
changeset
|
154 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
|
fd24ba70e1b3
nginx-0.0.7-2004-06-23-09:54:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
360
diff
changeset
|
155 "fcntl(F_SETOWN) failed while spawning \"%s\"", name); |
|
fd24ba70e1b3
nginx-0.0.7-2004-06-23-09:54:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
360
diff
changeset
|
156 ngx_close_channel(ngx_processes[s].channel, cycle->log); |
| 543 | 157 return NGX_INVALID_PID; |
|
365
fd24ba70e1b3
nginx-0.0.7-2004-06-23-09:54:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
360
diff
changeset
|
158 } |
|
fd24ba70e1b3
nginx-0.0.7-2004-06-23-09:54:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
360
diff
changeset
|
159 |
|
366
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
160 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
|
161 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
|
162 "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
|
163 name); |
|
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
164 ngx_close_channel(ngx_processes[s].channel, cycle->log); |
| 543 | 165 return NGX_INVALID_PID; |
|
366
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
166 } |
|
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
167 |
|
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
168 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
|
169 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
|
170 "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
|
171 name); |
|
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
172 ngx_close_channel(ngx_processes[s].channel, cycle->log); |
| 543 | 173 return NGX_INVALID_PID; |
|
366
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
174 } |
|
e411b1482ee3
nginx-0.0.7-2004-06-23-19:18:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
365
diff
changeset
|
175 |
|
365
fd24ba70e1b3
nginx-0.0.7-2004-06-23-09:54:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
360
diff
changeset
|
176 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
|
177 |
|
fd24ba70e1b3
nginx-0.0.7-2004-06-23-09:54:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
360
diff
changeset
|
178 } else { |
|
fd24ba70e1b3
nginx-0.0.7-2004-06-23-09:54:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
360
diff
changeset
|
179 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
|
180 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
|
181 } |
|
239e37d44a34
nginx-0.0.7-2004-06-18-20:22:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
355
diff
changeset
|
182 |
|
239e37d44a34
nginx-0.0.7-2004-06-18-20:22:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
355
diff
changeset
|
183 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
|
184 |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
185 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
186 pid = fork(); |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
187 |
|
354
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
188 switch (pid) { |
|
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
189 |
|
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
190 case -1: |
|
218
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
191 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
|
192 "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
|
193 ngx_close_channel(ngx_processes[s].channel, cycle->log); |
| 543 | 194 return NGX_INVALID_PID; |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
195 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
196 case 0: |
|
249
2a0540287298
nginx-0.0.2-2004-02-03-19:43:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
248
diff
changeset
|
197 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
|
198 proc(cycle, data); |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
199 break; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
200 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
201 default: |
|
195
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
191
diff
changeset
|
202 break; |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
203 } |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
204 |
| 477 | 205 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
|
206 |
|
354
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
207 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
|
208 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
|
209 |
|
218
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
210 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
|
211 return pid; |
|
218
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
212 } |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
213 |
|
354
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
214 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
|
215 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
|
216 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
|
217 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
|
218 |
|
56496082668b
nginx-0.0.3-2004-04-16-09:14:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
219 switch (respawn) { |
|
56496082668b
nginx-0.0.3-2004-04-16-09:14:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
220 |
|
3016
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
Igor Sysoev <igor@sysoev.ru>
parents:
2738
diff
changeset
|
221 case NGX_PROCESS_NORESPAWN: |
|
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
Igor Sysoev <igor@sysoev.ru>
parents:
2738
diff
changeset
|
222 ngx_processes[s].respawn = 0; |
|
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
Igor Sysoev <igor@sysoev.ru>
parents:
2738
diff
changeset
|
223 ngx_processes[s].just_spawn = 0; |
|
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
Igor Sysoev <igor@sysoev.ru>
parents:
2738
diff
changeset
|
224 ngx_processes[s].detached = 0; |
|
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
Igor Sysoev <igor@sysoev.ru>
parents:
2738
diff
changeset
|
225 break; |
|
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
Igor Sysoev <igor@sysoev.ru>
parents:
2738
diff
changeset
|
226 |
|
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
Igor Sysoev <igor@sysoev.ru>
parents:
2738
diff
changeset
|
227 case NGX_PROCESS_JUST_SPAWN: |
|
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
Igor Sysoev <igor@sysoev.ru>
parents:
2738
diff
changeset
|
228 ngx_processes[s].respawn = 0; |
|
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
Igor Sysoev <igor@sysoev.ru>
parents:
2738
diff
changeset
|
229 ngx_processes[s].just_spawn = 1; |
|
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
Igor Sysoev <igor@sysoev.ru>
parents:
2738
diff
changeset
|
230 ngx_processes[s].detached = 0; |
|
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
Igor Sysoev <igor@sysoev.ru>
parents:
2738
diff
changeset
|
231 break; |
|
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
Igor Sysoev <igor@sysoev.ru>
parents:
2738
diff
changeset
|
232 |
|
318
56496082668b
nginx-0.0.3-2004-04-16-09:14:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
233 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
|
234 ngx_processes[s].respawn = 1; |
|
3016
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
Igor Sysoev <igor@sysoev.ru>
parents:
2738
diff
changeset
|
235 ngx_processes[s].just_spawn = 0; |
|
354
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
236 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
|
237 break; |
|
56496082668b
nginx-0.0.3-2004-04-16-09:14:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
238 |
|
56496082668b
nginx-0.0.3-2004-04-16-09:14:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
239 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
|
240 ngx_processes[s].respawn = 1; |
|
3016
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
Igor Sysoev <igor@sysoev.ru>
parents:
2738
diff
changeset
|
241 ngx_processes[s].just_spawn = 1; |
|
354
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
242 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
|
243 break; |
|
56496082668b
nginx-0.0.3-2004-04-16-09:14:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
244 |
|
56496082668b
nginx-0.0.3-2004-04-16-09:14:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
245 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
|
246 ngx_processes[s].respawn = 0; |
|
3016
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
Igor Sysoev <igor@sysoev.ru>
parents:
2738
diff
changeset
|
247 ngx_processes[s].just_spawn = 0; |
|
354
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
248 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
|
249 break; |
|
56496082668b
nginx-0.0.3-2004-04-16-09:14:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
250 } |
|
56496082668b
nginx-0.0.3-2004-04-16-09:14:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
251 |
|
389
537de4dca8ca
nginx-0.0.7-2004-07-13-21:59:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
366
diff
changeset
|
252 if (s == ngx_last_process) { |
|
537de4dca8ca
nginx-0.0.7-2004-07-13-21:59:12 import
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253 ngx_last_process++; |
|
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254 } |
|
191
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255 |
|
225
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256 return pid; |
|
218
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257 } |
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258 |
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259 |
| 515 | 260 ngx_pid_t |
| 261 ngx_execute(ngx_cycle_t *cycle, ngx_exec_ctx_t *ctx) | |
|
218
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262 { |
|
279
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263 return ngx_spawn_process(cycle, ngx_execute_proc, ctx, ctx->name, |
|
226
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264 NGX_PROCESS_DETACHED); |
|
191
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265 } |
|
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266 |
|
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267 |
| 515 | 268 static void |
| 269 ngx_execute_proc(ngx_cycle_t *cycle, void *data) | |
|
218
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270 { |
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271 ngx_exec_ctx_t *ctx = data; |
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272 |
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273 if (execve(ctx->path, ctx->argv, ctx->envp) == -1) { |
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274 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
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275 "execve() failed while executing %s \"%s\"", |
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276 ctx->name, ctx->path); |
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277 } |
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278 |
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279 exit(1); |
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280 } |
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281 |
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282 |
| 539 | 283 ngx_int_t |
| 284 ngx_init_signals(ngx_log_t *log) | |
| 285 { | |
| 286 ngx_signal_t *sig; | |
| 287 struct sigaction sa; | |
| 288 | |
| 289 for (sig = signals; sig->signo != 0; sig++) { | |
| 290 ngx_memzero(&sa, sizeof(struct sigaction)); | |
| 291 sa.sa_handler = sig->handler; | |
| 292 sigemptyset(&sa.sa_mask); | |
| 293 if (sigaction(sig->signo, &sa, NULL) == -1) { | |
|
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294 #if (NGX_VALGRIND) |
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295 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, |
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296 "sigaction(%s) failed, ignored", sig->signame); |
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297 #else |
| 539 | 298 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, |
| 299 "sigaction(%s) failed", sig->signame); | |
| 300 return NGX_ERROR; | |
|
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301 #endif |
| 539 | 302 } |
| 303 } | |
| 304 | |
| 305 return NGX_OK; | |
| 306 } | |
| 307 | |
| 308 | |
| 515 | 309 void |
| 539 | 310 ngx_signal_handler(int signo) |
| 311 { | |
| 312 char *action; | |
| 313 ngx_int_t ignore; | |
| 314 ngx_err_t err; | |
| 315 ngx_signal_t *sig; | |
| 316 | |
| 317 ignore = 0; | |
| 318 | |
| 319 err = ngx_errno; | |
| 320 | |
| 321 for (sig = signals; sig->signo != 0; sig++) { | |
| 322 if (sig->signo == signo) { | |
| 323 break; | |
| 324 } | |
| 325 } | |
| 326 | |
|
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327 ngx_time_sigsafe_update(); |
| 539 | 328 |
| 329 action = ""; | |
| 330 | |
| 331 switch (ngx_process) { | |
| 332 | |
| 333 case NGX_PROCESS_MASTER: | |
| 334 case NGX_PROCESS_SINGLE: | |
| 335 switch (signo) { | |
| 336 | |
| 337 case ngx_signal_value(NGX_SHUTDOWN_SIGNAL): | |
| 338 ngx_quit = 1; | |
| 339 action = ", shutting down"; | |
| 340 break; | |
| 341 | |
| 342 case ngx_signal_value(NGX_TERMINATE_SIGNAL): | |
| 343 case SIGINT: | |
| 344 ngx_terminate = 1; | |
| 345 action = ", exiting"; | |
| 346 break; | |
| 347 | |
| 348 case ngx_signal_value(NGX_NOACCEPT_SIGNAL): | |
|
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349 if (ngx_daemonized) { |
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350 ngx_noaccept = 1; |
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351 action = ", stop accepting connections"; |
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352 } |
| 539 | 353 break; |
| 354 | |
| 355 case ngx_signal_value(NGX_RECONFIGURE_SIGNAL): | |
| 356 ngx_reconfigure = 1; | |
| 357 action = ", reconfiguring"; | |
| 358 break; | |
| 359 | |
| 360 case ngx_signal_value(NGX_REOPEN_SIGNAL): | |
| 361 ngx_reopen = 1; | |
| 362 action = ", reopening logs"; | |
| 363 break; | |
| 364 | |
| 365 case ngx_signal_value(NGX_CHANGEBIN_SIGNAL): | |
| 366 if (getppid() > 1 || ngx_new_binary > 0) { | |
| 367 | |
| 368 /* | |
| 369 * Ignore the signal in the new binary if its parent is | |
| 370 * not the init process, i.e. the old binary's process | |
| 698 | 371 * is still running. Or ignore the signal in the old binary's |
| 539 | 372 * process if the new binary's process is already running. |
| 373 */ | |
| 374 | |
| 375 action = ", ignoring"; | |
| 376 ignore = 1; | |
| 377 break; | |
| 378 } | |
| 379 | |
| 380 ngx_change_binary = 1; | |
| 381 action = ", changing binary"; | |
| 382 break; | |
| 383 | |
| 384 case SIGALRM: | |
|
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385 ngx_sigalrm = 1; |
| 539 | 386 break; |
| 387 | |
| 388 case SIGIO: | |
| 389 ngx_sigio = 1; | |
| 390 break; | |
| 391 | |
| 392 case SIGCHLD: | |
| 393 ngx_reap = 1; | |
| 394 break; | |
| 395 } | |
| 396 | |
| 397 break; | |
| 398 | |
| 399 case NGX_PROCESS_WORKER: | |
|
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400 case NGX_PROCESS_HELPER: |
| 539 | 401 switch (signo) { |
| 402 | |
| 403 case ngx_signal_value(NGX_NOACCEPT_SIGNAL): | |
|
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404 if (!ngx_daemonized) { |
|
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405 break; |
|
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|
406 } |
| 539 | 407 ngx_debug_quit = 1; |
| 408 case ngx_signal_value(NGX_SHUTDOWN_SIGNAL): | |
| 409 ngx_quit = 1; | |
| 410 action = ", shutting down"; | |
| 411 break; | |
| 412 | |
| 413 case ngx_signal_value(NGX_TERMINATE_SIGNAL): | |
| 414 case SIGINT: | |
| 415 ngx_terminate = 1; | |
| 416 action = ", exiting"; | |
| 417 break; | |
| 418 | |
| 419 case ngx_signal_value(NGX_REOPEN_SIGNAL): | |
| 420 ngx_reopen = 1; | |
| 421 action = ", reopening logs"; | |
| 422 break; | |
| 423 | |
| 424 case ngx_signal_value(NGX_RECONFIGURE_SIGNAL): | |
| 425 case ngx_signal_value(NGX_CHANGEBIN_SIGNAL): | |
| 426 case SIGIO: | |
| 427 action = ", ignoring"; | |
| 428 break; | |
| 429 } | |
| 430 | |
| 431 break; | |
| 432 } | |
| 433 | |
| 434 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, | |
| 435 "signal %d (%s) received%s", signo, sig->signame, action); | |
| 436 | |
| 437 if (ignore) { | |
| 438 ngx_log_error(NGX_LOG_CRIT, ngx_cycle->log, 0, | |
| 439 "the changing binary signal is ignored: " | |
| 440 "you should shutdown or terminate " | |
| 441 "before either old or new binary's process"); | |
| 442 } | |
| 443 | |
| 444 if (signo == SIGCHLD) { | |
| 445 ngx_process_get_status(); | |
| 446 } | |
| 447 | |
| 448 ngx_set_errno(err); | |
| 449 } | |
| 450 | |
| 451 | |
| 452 static void | |
| 515 | 453 ngx_process_get_status(void) |
|
218
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454 { |
|
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455 int status; |
|
05592fd7a436
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456 char *process; |
|
05592fd7a436
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457 ngx_pid_t pid; |
|
05592fd7a436
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|
458 ngx_err_t err; |
|
354
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
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318
diff
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|
459 ngx_int_t i; |
|
eaf1f651cf86
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318
diff
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|
460 ngx_uint_t one; |
| 477 | 461 |
|
191
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diff
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|
462 one = 0; |
|
71ce40b3c37b
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diff
changeset
|
463 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
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diff
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|
464 for ( ;; ) { |
|
71ce40b3c37b
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diff
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|
465 pid = waitpid(-1, &status, WNOHANG); |
|
71ce40b3c37b
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parents:
diff
changeset
|
466 |
|
71ce40b3c37b
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parents:
diff
changeset
|
467 if (pid == 0) { |
|
71ce40b3c37b
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diff
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|
468 return; |
|
71ce40b3c37b
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parents:
diff
changeset
|
469 } |
|
71ce40b3c37b
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parents:
diff
changeset
|
470 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
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parents:
diff
changeset
|
471 if (pid == -1) { |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
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diff
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|
472 err = ngx_errno; |
|
71ce40b3c37b
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parents:
diff
changeset
|
473 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
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parents:
diff
changeset
|
474 if (err == NGX_EINTR) { |
|
71ce40b3c37b
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parents:
diff
changeset
|
475 continue; |
|
71ce40b3c37b
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parents:
diff
changeset
|
476 } |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
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parents:
diff
changeset
|
477 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
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parents:
diff
changeset
|
478 if (err == NGX_ECHILD && one) { |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
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diff
changeset
|
479 return; |
|
71ce40b3c37b
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diff
changeset
|
480 } |
|
71ce40b3c37b
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parents:
diff
changeset
|
481 |
| 452 | 482 /* |
| 483 * Solaris always calls the signal handler for each exited process | |
|
943
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diff
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|
484 * despite waitpid() may be already called for this process. |
|
cbe0292e53b3
lower the log level of the waitpid() ENOCHILD error on FreeBSD
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diff
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|
485 * |
|
cbe0292e53b3
lower the log level of the waitpid() ENOCHILD error on FreeBSD
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diff
changeset
|
486 * When several processes exit at the same time FreeBSD may |
|
cbe0292e53b3
lower the log level of the waitpid() ENOCHILD error on FreeBSD
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698
diff
changeset
|
487 * erroneously call the signal handler for exited process |
| 1963 | 488 * despite waitpid() may be already called for this process. |
| 452 | 489 */ |
| 490 | |
| 491 if (err == NGX_ECHILD) { | |
|
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use copied strerror() messages and autoconfigured sys_nerr value
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|
492 ngx_log_error(NGX_LOG_INFO, ngx_cycle->log, err, |
|
e294f37401c0
use copied strerror() messages and autoconfigured sys_nerr value
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diff
changeset
|
493 "waitpid() failed"); |
| 563 | 494 return; |
| 452 | 495 } |
| 496 | |
|
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use copied strerror() messages and autoconfigured sys_nerr value
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|
497 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, err, |
|
e294f37401c0
use copied strerror() messages and autoconfigured sys_nerr value
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diff
changeset
|
498 "waitpid() failed"); |
|
191
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diff
changeset
|
499 return; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
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parents:
diff
changeset
|
500 } |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
501 |
|
306
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
279
diff
changeset
|
502 |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
503 one = 1; |
|
389
537de4dca8ca
nginx-0.0.7-2004-07-13-21:59:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
366
diff
changeset
|
504 process = "unknown process"; |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
505 |
|
218
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
changeset
|
506 for (i = 0; i < ngx_last_process; i++) { |
|
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parents:
195
diff
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|
507 if (ngx_processes[i].pid == pid) { |
|
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parents:
195
diff
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|
508 ngx_processes[i].status = status; |
|
222
99df0edb63ed
nginx-0.0.1-2004-01-09-00:02:06 import
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parents:
221
diff
changeset
|
509 ngx_processes[i].exited = 1; |
|
218
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parents:
195
diff
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|
510 process = ngx_processes[i].name; |
|
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parents:
195
diff
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|
511 break; |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
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|
512 } |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
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|
513 } |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
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|
514 |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
changeset
|
515 if (WTERMSIG(status)) { |
| 2494 | 516 #ifdef WCOREDUMP |
|
218
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parents:
195
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|
517 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, |
| 461 | 518 "%s %P exited on signal %d%s", |
|
218
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195
diff
changeset
|
519 process, pid, WTERMSIG(status), |
|
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parents:
195
diff
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|
520 WCOREDUMP(status) ? " (core dumped)" : ""); |
| 2494 | 521 #else |
| 522 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, | |
| 523 "%s %P exited on signal %d", | |
| 524 process, pid, WTERMSIG(status)); | |
| 525 #endif | |
|
218
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195
diff
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|
526 |
|
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nginx-0.0.1-2004-01-05-23:55:48 import
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195
diff
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|
527 } else { |
| 477 | 528 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, |
| 461 | 529 "%s %P exited with code %d", |
|
218
05592fd7a436
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parents:
195
diff
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|
530 process, pid, WEXITSTATUS(status)); |
|
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195
diff
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|
531 } |
|
234
cd71b95716b4
nginx-0.0.1-2004-01-20-23:40:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
227
diff
changeset
|
532 |
|
cd71b95716b4
nginx-0.0.1-2004-01-20-23:40:08 import
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parents:
227
diff
changeset
|
533 if (WEXITSTATUS(status) == 2 && ngx_processes[i].respawn) { |
|
cd71b95716b4
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parents:
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|
534 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, |
| 1963 | 535 "%s %P exited with fatal code %d " |
|
4133
59b99f217c6d
Replaced "can not" with "cannot" and "could not" in a bunch of places.
Ruslan Ermilov <ru@nginx.com>
parents:
4019
diff
changeset
|
536 "and cannot be respawned", |
| 1963 | 537 process, pid, WEXITSTATUS(status)); |
|
234
cd71b95716b4
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parents:
227
diff
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|
538 ngx_processes[i].respawn = 0; |
|
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parents:
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|
539 } |
|
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parents:
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diff
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|
540 |
|
45272aab5eea
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parents:
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|
541 ngx_unlock_mutexes(pid); |
|
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diff
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|
542 } |
|
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Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
543 } |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
544 |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
545 |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
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diff
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|
546 static void |
|
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parents:
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|
547 ngx_unlock_mutexes(ngx_pid_t pid) |
| 4522 | 548 { |
|
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parents:
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|
549 ngx_uint_t i; |
|
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|
550 ngx_shm_zone_t *shm_zone; |
|
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|
551 ngx_list_part_t *part; |
|
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|
552 ngx_slab_pool_t *sp; |
|
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|
553 |
|
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Maxim Dounin <mdounin@mdounin.ru>
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diff
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|
554 /* |
|
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|
555 * unlock the accept mutex if the abnormally exited process |
|
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Unlock of shared memory zones on process crash.
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parents:
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|
556 * held it |
|
45272aab5eea
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|
557 */ |
|
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|
558 |
|
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changeset
|
559 if (ngx_accept_mutex_ptr) { |
|
4315
424a1ac6af43
Added (void) as we intentionally ignore returned values.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4311
diff
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|
560 (void) ngx_shmtx_force_unlock(&ngx_accept_mutex, pid); |
|
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|
561 } |
|
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diff
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|
562 |
|
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
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|
563 /* |
|
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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changeset
|
564 * unlock shared memory mutexes if held by the abnormally exited |
|
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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|
565 * process |
|
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Unlock of shared memory zones on process crash.
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parents:
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diff
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|
566 */ |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
567 |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
568 part = (ngx_list_part_t *) &ngx_cycle->shared_memory.part; |
|
45272aab5eea
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parents:
4309
diff
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|
569 shm_zone = part->elts; |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
570 |
|
45272aab5eea
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
571 for (i = 0; /* void */ ; i++) { |
|
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Unlock of shared memory zones on process crash.
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parents:
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diff
changeset
|
572 |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
573 if (i >= part->nelts) { |
|
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parents:
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diff
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|
574 if (part->next == NULL) { |
|
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parents:
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|
575 break; |
|
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diff
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|
576 } |
|
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parents:
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diff
changeset
|
577 part = part->next; |
|
45272aab5eea
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parents:
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diff
changeset
|
578 shm_zone = part->elts; |
|
45272aab5eea
Unlock of shared memory zones on process crash.
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parents:
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diff
changeset
|
579 i = 0; |
|
45272aab5eea
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diff
changeset
|
580 } |
|
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parents:
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diff
changeset
|
581 |
|
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Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
582 sp = (ngx_slab_pool_t *) shm_zone[i].shm.addr; |
|
45272aab5eea
Unlock of shared memory zones on process crash.
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parents:
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diff
changeset
|
583 |
|
45272aab5eea
Unlock of shared memory zones on process crash.
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parents:
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diff
changeset
|
584 if (ngx_shmtx_force_unlock(&sp->mutex, pid)) { |
|
45272aab5eea
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parents:
4309
diff
changeset
|
585 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, |
|
45272aab5eea
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
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|
586 "shared memory zone \"%V\" was locked by %P", |
|
45272aab5eea
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|
587 &shm_zone[i].shm.name, pid); |
|
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parents:
4309
diff
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|
588 } |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
589 } |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
590 } |
| 461 | 591 |
| 592 | |
| 515 | 593 void |
| 594 ngx_debug_point(void) | |
| 461 | 595 { |
| 596 ngx_core_conf_t *ccf; | |
| 597 | |
| 598 ccf = (ngx_core_conf_t *) ngx_get_conf(ngx_cycle->conf_ctx, | |
| 599 ngx_core_module); | |
| 600 | |
| 601 switch (ccf->debug_points) { | |
| 602 | |
| 603 case NGX_DEBUG_POINTS_STOP: | |
| 604 raise(SIGSTOP); | |
| 605 break; | |
| 606 | |
| 607 case NGX_DEBUG_POINTS_ABORT: | |
| 563 | 608 ngx_abort(); |
| 461 | 609 } |
| 610 } | |
|
2738
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implement "-s signal" option for Unix
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diff
changeset
|
611 |
|
ae81441e23f4
implement "-s signal" option for Unix
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parents:
2494
diff
changeset
|
612 |
|
ae81441e23f4
implement "-s signal" option for Unix
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parents:
2494
diff
changeset
|
613 ngx_int_t |
|
6483
3a50ccd94333
Fixed ngx_os_signal_process() prototype.
Ruslan Ermilov <ru@nginx.com>
parents:
6482
diff
changeset
|
614 ngx_os_signal_process(ngx_cycle_t *cycle, char *name, ngx_pid_t pid) |
|
2738
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parents:
2494
diff
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|
615 { |
|
ae81441e23f4
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diff
changeset
|
616 ngx_signal_t *sig; |
|
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parents:
2494
diff
changeset
|
617 |
|
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implement "-s signal" option for Unix
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parents:
2494
diff
changeset
|
618 for (sig = signals; sig->signo != 0; sig++) { |
|
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
619 if (ngx_strcmp(name, sig->name) == 0) { |
|
ae81441e23f4
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Igor Sysoev <igor@sysoev.ru>
parents:
2494
diff
changeset
|
620 if (kill(pid, sig->signo) != -1) { |
|
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diff
changeset
|
621 return 0; |
|
ae81441e23f4
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diff
changeset
|
622 } |
|
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parents:
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diff
changeset
|
623 |
|
ae81441e23f4
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Igor Sysoev <igor@sysoev.ru>
parents:
2494
diff
changeset
|
624 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
|
6483
3a50ccd94333
Fixed ngx_os_signal_process() prototype.
Ruslan Ermilov <ru@nginx.com>
parents:
6482
diff
changeset
|
625 "kill(%P, %d) failed", pid, sig->signo); |
|
2738
ae81441e23f4
implement "-s signal" option for Unix
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parents:
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diff
changeset
|
626 } |
|
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2494
diff
changeset
|
627 } |
|
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2494
diff
changeset
|
628 |
|
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
629 return 1; |
|
ae81441e23f4
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parents:
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|
630 } |