Mercurial > hg > nginx
annotate src/os/unix/ngx_process.c @ 7025:7206c3630310
HTTP/2: don't send SETTINGS ACK before already queued DATA frames.
Previously, SETTINGS ACK was sent immediately upon receipt of SETTINGS
frame, before already queued DATA frames created using old SETTINGS.
This incorrect behavior was source of interoperability issues, because
peers rely on the fact that new SETTINGS are in effect after receiving
SETTINGS ACK.
Reported by Feng Li.
Signed-off-by: Piotr Sikora <piotrsikora@google.com>
| author | Piotr Sikora <piotrsikora@google.com> |
|---|---|
| date | Fri, 02 Jun 2017 15:05:32 +0300 |
| parents | f38647c651a8 |
| children | 8b84d60ef13d |
| 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; | |
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18 void (*handler)(int signo, siginfo_t *siginfo, void *ucontext); |
| 539 | 19 } ngx_signal_t; |
| 20 | |
| 21 | |
| 22 | |
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23 static void ngx_execute_proc(ngx_cycle_t *cycle, void *data); |
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24 static void ngx_signal_handler(int signo, siginfo_t *siginfo, void *ucontext); |
| 539 | 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 |
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78 { SIGSYS, "SIGSYS, SIG_IGN", "", NULL }, |
| 3045 | 79 |
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80 { SIGPIPE, "SIGPIPE, SIG_IGN", "", NULL }, |
| 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) { |
|
fd24ba70e1b3
nginx-0.0.7-2004-06-23-09:54:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
360
diff
changeset
|
147 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
|
148 "ioctl(FIOASYNC) 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
|
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
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250 } |
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251 |
|
389
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252 if (s == ngx_last_process) { |
|
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253 ngx_last_process++; |
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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
b79f021a644a
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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)); | |
|
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291 |
|
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292 if (sig->handler) { |
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293 sa.sa_sigaction = sig->handler; |
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294 sa.sa_flags = SA_SIGINFO; |
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295 |
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296 } else { |
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297 sa.sa_handler = SIG_IGN; |
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298 } |
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299 |
| 539 | 300 sigemptyset(&sa.sa_mask); |
| 301 if (sigaction(sig->signo, &sa, NULL) == -1) { | |
|
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302 #if (NGX_VALGRIND) |
|
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303 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, |
|
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304 "sigaction(%s) failed, ignored", sig->signame); |
|
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305 #else |
| 539 | 306 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, |
| 307 "sigaction(%s) failed", sig->signame); | |
| 308 return NGX_ERROR; | |
|
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309 #endif |
| 539 | 310 } |
| 311 } | |
| 312 | |
| 313 return NGX_OK; | |
| 314 } | |
| 315 | |
| 316 | |
|
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Added missing "static" specifier found by gcc -Wtraditional.
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317 static void |
|
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318 ngx_signal_handler(int signo, siginfo_t *siginfo, void *ucontext) |
| 539 | 319 { |
| 320 char *action; | |
| 321 ngx_int_t ignore; | |
| 322 ngx_err_t err; | |
| 323 ngx_signal_t *sig; | |
| 324 | |
| 325 ignore = 0; | |
| 326 | |
| 327 err = ngx_errno; | |
| 328 | |
| 329 for (sig = signals; sig->signo != 0; sig++) { | |
| 330 if (sig->signo == signo) { | |
| 331 break; | |
| 332 } | |
| 333 } | |
| 334 | |
|
3475
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*) introduce ngx_time_sigsafe_update() to update the error log time only
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|
335 ngx_time_sigsafe_update(); |
| 539 | 336 |
| 337 action = ""; | |
| 338 | |
| 339 switch (ngx_process) { | |
| 340 | |
| 341 case NGX_PROCESS_MASTER: | |
| 342 case NGX_PROCESS_SINGLE: | |
| 343 switch (signo) { | |
| 344 | |
| 345 case ngx_signal_value(NGX_SHUTDOWN_SIGNAL): | |
| 346 ngx_quit = 1; | |
| 347 action = ", shutting down"; | |
| 348 break; | |
| 349 | |
| 350 case ngx_signal_value(NGX_TERMINATE_SIGNAL): | |
| 351 case SIGINT: | |
| 352 ngx_terminate = 1; | |
| 353 action = ", exiting"; | |
| 354 break; | |
| 355 | |
| 356 case ngx_signal_value(NGX_NOACCEPT_SIGNAL): | |
|
4019
5364d2e711cc
SIGWINCH/NOACCEPT signal is disabled now in non-daemon mode.
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
357 if (ngx_daemonized) { |
|
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|
358 ngx_noaccept = 1; |
|
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|
359 action = ", stop accepting connections"; |
|
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|
360 } |
| 539 | 361 break; |
| 362 | |
| 363 case ngx_signal_value(NGX_RECONFIGURE_SIGNAL): | |
| 364 ngx_reconfigure = 1; | |
| 365 action = ", reconfiguring"; | |
| 366 break; | |
| 367 | |
| 368 case ngx_signal_value(NGX_REOPEN_SIGNAL): | |
| 369 ngx_reopen = 1; | |
| 370 action = ", reopening logs"; | |
| 371 break; | |
| 372 | |
| 373 case ngx_signal_value(NGX_CHANGEBIN_SIGNAL): | |
| 374 if (getppid() > 1 || ngx_new_binary > 0) { | |
| 375 | |
| 376 /* | |
| 377 * Ignore the signal in the new binary if its parent is | |
| 378 * not the init process, i.e. the old binary's process | |
| 698 | 379 * is still running. Or ignore the signal in the old binary's |
| 539 | 380 * process if the new binary's process is already running. |
| 381 */ | |
| 382 | |
| 383 action = ", ignoring"; | |
| 384 ignore = 1; | |
| 385 break; | |
| 386 } | |
| 387 | |
| 388 ngx_change_binary = 1; | |
| 389 action = ", changing binary"; | |
| 390 break; | |
| 391 | |
| 392 case SIGALRM: | |
|
3048
846d0e2fa483
twice termination delay only after SIGALRM, otherwise many separate SIGCHLD
Igor Sysoev <igor@sysoev.ru>
parents:
3045
diff
changeset
|
393 ngx_sigalrm = 1; |
| 539 | 394 break; |
| 395 | |
| 396 case SIGIO: | |
| 397 ngx_sigio = 1; | |
| 398 break; | |
| 399 | |
| 400 case SIGCHLD: | |
| 401 ngx_reap = 1; | |
| 402 break; | |
| 403 } | |
| 404 | |
| 405 break; | |
| 406 | |
| 407 case NGX_PROCESS_WORKER: | |
|
3358
f94e8ff65aa2
add NGX_PROCESS_HELPER process status
Igor Sysoev <igor@sysoev.ru>
parents:
3048
diff
changeset
|
408 case NGX_PROCESS_HELPER: |
| 539 | 409 switch (signo) { |
| 410 | |
| 411 case ngx_signal_value(NGX_NOACCEPT_SIGNAL): | |
|
4019
5364d2e711cc
SIGWINCH/NOACCEPT signal is disabled now in non-daemon mode.
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parents:
3787
diff
changeset
|
412 if (!ngx_daemonized) { |
|
5364d2e711cc
SIGWINCH/NOACCEPT signal is disabled now in non-daemon mode.
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parents:
3787
diff
changeset
|
413 break; |
|
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SIGWINCH/NOACCEPT signal is disabled now in non-daemon mode.
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parents:
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diff
changeset
|
414 } |
| 539 | 415 ngx_debug_quit = 1; |
|
6994
f38647c651a8
Added missing "fall through" comments (ticket #1259).
Maxim Dounin <mdounin@mdounin.ru>
parents:
6985
diff
changeset
|
416 /* fall through */ |
| 539 | 417 case ngx_signal_value(NGX_SHUTDOWN_SIGNAL): |
| 418 ngx_quit = 1; | |
| 419 action = ", shutting down"; | |
| 420 break; | |
| 421 | |
| 422 case ngx_signal_value(NGX_TERMINATE_SIGNAL): | |
| 423 case SIGINT: | |
| 424 ngx_terminate = 1; | |
| 425 action = ", exiting"; | |
| 426 break; | |
| 427 | |
| 428 case ngx_signal_value(NGX_REOPEN_SIGNAL): | |
| 429 ngx_reopen = 1; | |
| 430 action = ", reopening logs"; | |
| 431 break; | |
| 432 | |
| 433 case ngx_signal_value(NGX_RECONFIGURE_SIGNAL): | |
| 434 case ngx_signal_value(NGX_CHANGEBIN_SIGNAL): | |
| 435 case SIGIO: | |
| 436 action = ", ignoring"; | |
| 437 break; | |
| 438 } | |
| 439 | |
| 440 break; | |
| 441 } | |
| 442 | |
|
6985
23ecffd5bcfe
Core: signal sender pid logging.
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diff
changeset
|
443 if (siginfo && siginfo->si_pid) { |
|
23ecffd5bcfe
Core: signal sender pid logging.
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parents:
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diff
changeset
|
444 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, |
|
23ecffd5bcfe
Core: signal sender pid logging.
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parents:
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diff
changeset
|
445 "signal %d (%s) received from %P%s", |
|
23ecffd5bcfe
Core: signal sender pid logging.
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parents:
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diff
changeset
|
446 signo, sig->signame, siginfo->si_pid, action); |
|
23ecffd5bcfe
Core: signal sender pid logging.
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parents:
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diff
changeset
|
447 |
|
23ecffd5bcfe
Core: signal sender pid logging.
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parents:
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diff
changeset
|
448 } else { |
|
23ecffd5bcfe
Core: signal sender pid logging.
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parents:
6932
diff
changeset
|
449 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, |
|
23ecffd5bcfe
Core: signal sender pid logging.
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parents:
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diff
changeset
|
450 "signal %d (%s) received%s", |
|
23ecffd5bcfe
Core: signal sender pid logging.
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parents:
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diff
changeset
|
451 signo, sig->signame, action); |
|
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Core: signal sender pid logging.
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diff
changeset
|
452 } |
| 539 | 453 |
| 454 if (ignore) { | |
| 455 ngx_log_error(NGX_LOG_CRIT, ngx_cycle->log, 0, | |
| 456 "the changing binary signal is ignored: " | |
| 457 "you should shutdown or terminate " | |
| 458 "before either old or new binary's process"); | |
| 459 } | |
| 460 | |
| 461 if (signo == SIGCHLD) { | |
| 462 ngx_process_get_status(); | |
| 463 } | |
| 464 | |
| 465 ngx_set_errno(err); | |
| 466 } | |
| 467 | |
| 468 | |
| 469 static void | |
| 515 | 470 ngx_process_get_status(void) |
|
218
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nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
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|
471 { |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
changeset
|
472 int status; |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
changeset
|
473 char *process; |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
changeset
|
474 ngx_pid_t pid; |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
changeset
|
475 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
|
476 ngx_int_t i; |
|
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
477 ngx_uint_t one; |
| 477 | 478 |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
479 one = 0; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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 for ( ;; ) { |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
482 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
|
483 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
484 if (pid == 0) { |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
485 return; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
486 } |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
487 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
488 if (pid == -1) { |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
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parents:
diff
changeset
|
489 err = ngx_errno; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
490 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
491 if (err == NGX_EINTR) { |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
492 continue; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
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parents:
diff
changeset
|
493 } |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
494 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
495 if (err == NGX_ECHILD && one) { |
|
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nginx-0.0.1-2003-11-19-19:26:41 import
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parents:
diff
changeset
|
496 return; |
|
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nginx-0.0.1-2003-11-19-19:26:41 import
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parents:
diff
changeset
|
497 } |
|
71ce40b3c37b
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
498 |
| 452 | 499 /* |
| 500 * Solaris always calls the signal handler for each exited process | |
|
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diff
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|
501 * despite waitpid() may be already called for this process. |
|
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diff
changeset
|
502 * |
|
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diff
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|
503 * When several processes exit at the same time FreeBSD may |
|
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parents:
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diff
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|
504 * erroneously call the signal handler for exited process |
| 1963 | 505 * despite waitpid() may be already called for this process. |
| 452 | 506 */ |
| 507 | |
| 508 if (err == NGX_ECHILD) { | |
|
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|
509 ngx_log_error(NGX_LOG_INFO, ngx_cycle->log, err, |
|
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|
510 "waitpid() failed"); |
| 563 | 511 return; |
| 452 | 512 } |
| 513 | |
|
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parents:
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|
514 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, err, |
|
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diff
changeset
|
515 "waitpid() failed"); |
|
191
71ce40b3c37b
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parents:
diff
changeset
|
516 return; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
517 } |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
518 |
|
306
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
279
diff
changeset
|
519 |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
520 one = 1; |
|
389
537de4dca8ca
nginx-0.0.7-2004-07-13-21:59:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
366
diff
changeset
|
521 process = "unknown process"; |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
522 |
|
218
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
changeset
|
523 for (i = 0; i < ngx_last_process; i++) { |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
changeset
|
524 if (ngx_processes[i].pid == pid) { |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
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|
525 ngx_processes[i].status = status; |
|
222
99df0edb63ed
nginx-0.0.1-2004-01-09-00:02:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
221
diff
changeset
|
526 ngx_processes[i].exited = 1; |
|
218
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
changeset
|
527 process = ngx_processes[i].name; |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
changeset
|
528 break; |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
changeset
|
529 } |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
530 } |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
531 |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
changeset
|
532 if (WTERMSIG(status)) { |
| 2494 | 533 #ifdef WCOREDUMP |
|
218
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
changeset
|
534 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, |
| 461 | 535 "%s %P exited on signal %d%s", |
|
218
05592fd7a436
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parents:
195
diff
changeset
|
536 process, pid, WTERMSIG(status), |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
changeset
|
537 WCOREDUMP(status) ? " (core dumped)" : ""); |
| 2494 | 538 #else |
| 539 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, | |
| 540 "%s %P exited on signal %d", | |
| 541 process, pid, WTERMSIG(status)); | |
| 542 #endif | |
|
218
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
changeset
|
543 |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
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parents:
195
diff
changeset
|
544 } else { |
| 477 | 545 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, |
| 461 | 546 "%s %P exited with code %d", |
|
218
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
547 process, pid, WEXITSTATUS(status)); |
|
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
548 } |
|
234
cd71b95716b4
nginx-0.0.1-2004-01-20-23:40:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
227
diff
changeset
|
549 |
|
cd71b95716b4
nginx-0.0.1-2004-01-20-23:40:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
227
diff
changeset
|
550 if (WEXITSTATUS(status) == 2 && ngx_processes[i].respawn) { |
|
cd71b95716b4
nginx-0.0.1-2004-01-20-23:40:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
227
diff
changeset
|
551 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, |
| 1963 | 552 "%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
|
553 "and cannot be respawned", |
| 1963 | 554 process, pid, WEXITSTATUS(status)); |
|
234
cd71b95716b4
nginx-0.0.1-2004-01-20-23:40:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
227
diff
changeset
|
555 ngx_processes[i].respawn = 0; |
|
cd71b95716b4
nginx-0.0.1-2004-01-20-23:40:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
227
diff
changeset
|
556 } |
|
4311
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Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
557 |
|
45272aab5eea
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parents:
4309
diff
changeset
|
558 ngx_unlock_mutexes(pid); |
|
45272aab5eea
Unlock of shared memory zones on process crash.
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parents:
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diff
changeset
|
559 } |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
560 } |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
561 |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
562 |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
563 static void |
|
45272aab5eea
Unlock of shared memory zones on process crash.
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parents:
4309
diff
changeset
|
564 ngx_unlock_mutexes(ngx_pid_t pid) |
| 4522 | 565 { |
|
4311
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Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
566 ngx_uint_t i; |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
567 ngx_shm_zone_t *shm_zone; |
|
45272aab5eea
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Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
568 ngx_list_part_t *part; |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
569 ngx_slab_pool_t *sp; |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
570 |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
571 /* |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
572 * unlock the accept mutex if the abnormally exited process |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
573 * held it |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
574 */ |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
575 |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
576 if (ngx_accept_mutex_ptr) { |
|
4315
424a1ac6af43
Added (void) as we intentionally ignore returned values.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4311
diff
changeset
|
577 (void) ngx_shmtx_force_unlock(&ngx_accept_mutex, pid); |
|
4311
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
578 } |
|
45272aab5eea
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Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
579 |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
580 /* |
|
45272aab5eea
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Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
581 * unlock shared memory mutexes if held by the abnormally exited |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
582 * process |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
583 */ |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
584 |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
585 part = (ngx_list_part_t *) &ngx_cycle->shared_memory.part; |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
586 shm_zone = part->elts; |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
587 |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
588 for (i = 0; /* void */ ; i++) { |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
589 |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
590 if (i >= part->nelts) { |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
591 if (part->next == NULL) { |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
592 break; |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
593 } |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
594 part = part->next; |
|
45272aab5eea
Unlock of shared memory zones on process crash.
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parents:
4309
diff
changeset
|
595 shm_zone = part->elts; |
|
45272aab5eea
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parents:
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diff
changeset
|
596 i = 0; |
|
45272aab5eea
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parents:
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diff
changeset
|
597 } |
|
45272aab5eea
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
598 |
|
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Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
599 sp = (ngx_slab_pool_t *) shm_zone[i].shm.addr; |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
600 |
|
45272aab5eea
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Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
601 if (ngx_shmtx_force_unlock(&sp->mutex, pid)) { |
|
45272aab5eea
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Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
602 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, |
|
45272aab5eea
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parents:
4309
diff
changeset
|
603 "shared memory zone \"%V\" was locked by %P", |
|
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Unlock of shared memory zones on process crash.
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parents:
4309
diff
changeset
|
604 &shm_zone[i].shm.name, pid); |
|
45272aab5eea
Unlock of shared memory zones on process crash.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4309
diff
changeset
|
605 } |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
606 } |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
607 } |
| 461 | 608 |
| 609 | |
| 515 | 610 void |
| 611 ngx_debug_point(void) | |
| 461 | 612 { |
| 613 ngx_core_conf_t *ccf; | |
| 614 | |
| 615 ccf = (ngx_core_conf_t *) ngx_get_conf(ngx_cycle->conf_ctx, | |
| 616 ngx_core_module); | |
| 617 | |
| 618 switch (ccf->debug_points) { | |
| 619 | |
| 620 case NGX_DEBUG_POINTS_STOP: | |
| 621 raise(SIGSTOP); | |
| 622 break; | |
| 623 | |
| 624 case NGX_DEBUG_POINTS_ABORT: | |
| 563 | 625 ngx_abort(); |
| 461 | 626 } |
| 627 } | |
|
2738
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>
parents:
2494
diff
changeset
|
629 |
|
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2494
diff
changeset
|
630 ngx_int_t |
|
6483
3a50ccd94333
Fixed ngx_os_signal_process() prototype.
Ruslan Ermilov <ru@nginx.com>
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631 ngx_os_signal_process(ngx_cycle_t *cycle, char *name, ngx_pid_t pid) |
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632 { |
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633 ngx_signal_t *sig; |
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634 |
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635 for (sig = signals; sig->signo != 0; sig++) { |
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636 if (ngx_strcmp(name, sig->name) == 0) { |
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637 if (kill(pid, sig->signo) != -1) { |
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638 return 0; |
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639 } |
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640 |
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641 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
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642 "kill(%P, %d) failed", pid, sig->signo); |
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643 } |
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644 } |
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645 |
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646 return 1; |
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647 } |