Mercurial > hg > nginx
annotate src/os/unix/ngx_process.c @ 6932:e54c336d95aa
Added missing "static" specifier found by gcc -Wtraditional.
This has somehow escaped from fbdaad9b0e7b.
| author | Ruslan Ermilov <ru@nginx.com> |
|---|---|
| date | Thu, 16 Mar 2017 19:01:05 +0300 |
| parents | 3a50ccd94333 |
| children | 23ecffd5bcfe d409ab1e8e4d |
| 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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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
Igor Sysoev <igor@sysoev.ru>
parents:
366
diff
changeset
|
253 ngx_last_process++; |
|
537de4dca8ca
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254 } |
|
191
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255 |
|
225
2e9a8a14a0cf
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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 | |
|
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Added missing "static" specifier found by gcc -Wtraditional.
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parents:
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|
309 static 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 | |
|
3475
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
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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): | |
|
4019
5364d2e711cc
SIGWINCH/NOACCEPT signal is disabled now in non-daemon mode.
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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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SIGWINCH/NOACCEPT signal is disabled now in non-daemon mode.
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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: | |
|
3048
846d0e2fa483
twice termination delay only after SIGALRM, otherwise many separate SIGCHLD
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parents:
3045
diff
changeset
|
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: | |
|
3358
f94e8ff65aa2
add NGX_PROCESS_HELPER process status
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parents:
3048
diff
changeset
|
400 case NGX_PROCESS_HELPER: |
| 539 | 401 switch (signo) { |
| 402 | |
| 403 case ngx_signal_value(NGX_NOACCEPT_SIGNAL): | |
|
4019
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SIGWINCH/NOACCEPT signal is disabled now in non-daemon mode.
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parents:
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|
404 if (!ngx_daemonized) { |
|
5364d2e711cc
SIGWINCH/NOACCEPT signal is disabled now in non-daemon mode.
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parents:
3787
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|
405 break; |
|
5364d2e711cc
SIGWINCH/NOACCEPT signal is disabled now in non-daemon mode.
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parents:
3787
diff
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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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diff
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|
454 { |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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195
diff
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|
455 int status; |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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195
diff
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|
456 char *process; |
|
05592fd7a436
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195
diff
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|
457 ngx_pid_t pid; |
|
05592fd7a436
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195
diff
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|
458 ngx_err_t err; |
|
354
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
459 ngx_int_t i; |
|
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
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parents:
318
diff
changeset
|
460 ngx_uint_t one; |
| 477 | 461 |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
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parents:
diff
changeset
|
462 one = 0; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
463 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
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parents:
diff
changeset
|
464 for ( ;; ) { |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
465 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
|
466 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
467 if (pid == 0) { |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
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parents:
diff
changeset
|
468 return; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
469 } |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
470 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
471 if (pid == -1) { |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
472 err = ngx_errno; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
473 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
474 if (err == NGX_EINTR) { |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
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parents:
diff
changeset
|
475 continue; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
476 } |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
477 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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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parents:
diff
changeset
|
479 return; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
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parents:
diff
changeset
|
480 } |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
481 |
| 452 | 482 /* |
| 483 * Solaris always calls the signal handler for each exited process | |
|
943
cbe0292e53b3
lower the log level of the waitpid() ENOCHILD error on FreeBSD
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parents:
698
diff
changeset
|
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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parents:
698
diff
changeset
|
485 * |
|
cbe0292e53b3
lower the log level of the waitpid() ENOCHILD error on FreeBSD
Igor Sysoev <igor@sysoev.ru>
parents:
698
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
Igor Sysoev <igor@sysoev.ru>
parents:
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) { | |
|
3787
e294f37401c0
use copied strerror() messages and autoconfigured sys_nerr value
Igor Sysoev <igor@sysoev.ru>
parents:
3681
diff
changeset
|
492 ngx_log_error(NGX_LOG_INFO, ngx_cycle->log, err, |
|
e294f37401c0
use copied strerror() messages and autoconfigured sys_nerr value
Igor Sysoev <igor@sysoev.ru>
parents:
3681
diff
changeset
|
493 "waitpid() failed"); |
| 563 | 494 return; |
| 452 | 495 } |
| 496 | |
|
3787
e294f37401c0
use copied strerror() messages and autoconfigured sys_nerr value
Igor Sysoev <igor@sysoev.ru>
parents:
3681
diff
changeset
|
497 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, err, |
|
e294f37401c0
use copied strerror() messages and autoconfigured sys_nerr value
Igor Sysoev <igor@sysoev.ru>
parents:
3681
diff
changeset
|
498 "waitpid() failed"); |
|
191
71ce40b3c37b
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parents:
diff
changeset
|
499 return; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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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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:
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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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parents:
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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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
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|
533 if (WEXITSTATUS(status) == 2 && ngx_processes[i].respawn) { |
|
cd71b95716b4
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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:
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|
538 ngx_processes[i].respawn = 0; |
|
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parents:
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539 } |
|
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diff
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|
540 |
|
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|
541 ngx_unlock_mutexes(pid); |
|
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|
542 } |
|
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parents:
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diff
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|
543 } |
|
45272aab5eea
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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 |
|
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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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|
547 ngx_unlock_mutexes(ngx_pid_t pid) |
| 4522 | 548 { |
|
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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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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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|
556 * held it |
|
45272aab5eea
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|
557 */ |
|
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|
558 |
|
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|
559 if (ngx_accept_mutex_ptr) { |
|
4315
424a1ac6af43
Added (void) as we intentionally ignore returned values.
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parents:
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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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parents:
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|
563 /* |
|
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parents:
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|
564 * unlock shared memory mutexes if held by the abnormally exited |
|
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|
565 * process |
|
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parents:
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diff
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|
566 */ |
|
45272aab5eea
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
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|
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:
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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
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|
570 |
|
45272aab5eea
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parents:
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diff
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|
571 for (i = 0; /* void */ ; i++) { |
|
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parents:
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diff
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|
572 |
|
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
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|
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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|
575 break; |
|
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diff
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|
576 } |
|
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parents:
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diff
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|
577 part = part->next; |
|
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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
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|
579 i = 0; |
|
45272aab5eea
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diff
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|
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.
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parents:
4309
diff
changeset
|
582 sp = (ngx_slab_pool_t *) shm_zone[i].shm.addr; |
|
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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)) { |
|
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parents:
4309
diff
changeset
|
585 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, |
|
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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
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|
611 |
|
ae81441e23f4
implement "-s signal" option for Unix
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parents:
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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
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|
616 ngx_signal_t *sig; |
|
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parents:
2494
diff
changeset
|
617 |
|
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parents:
2494
diff
changeset
|
618 for (sig = signals; sig->signo != 0; sig++) { |
|
ae81441e23f4
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diff
changeset
|
619 if (ngx_strcmp(name, sig->name) == 0) { |
|
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parents:
2494
diff
changeset
|
620 if (kill(pid, sig->signo) != -1) { |
|
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diff
changeset
|
621 return 0; |
|
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diff
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|
622 } |
|
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parents:
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diff
changeset
|
623 |
|
ae81441e23f4
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Igor Sysoev <igor@sysoev.ru>
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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
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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
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diff
changeset
|
629 return 1; |
|
ae81441e23f4
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|
630 } |