Mercurial > hg > nginx

annotate src/os/unix/ngx_process.c @ 218:05592fd7a436

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
nginx-0.0.1-2004-01-05-23:55:48 import
author Igor Sysoev <igor@sysoev.ru>
date Mon, 05 Jan 2004 20:55:48 +0000
parents 8dee38ea9117
children f57597ec5249
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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1
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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2 #include <ngx_config.h>
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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3 #include <ngx_core.h>
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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4
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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5
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05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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6 static void ngx_exec_proc(ngx_cycle_t *cycle, void *data);
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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7
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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8 ngx_uint_t ngx_last_process;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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9 ngx_process_t ngx_processes[NGX_MAX_PROCESSES];
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71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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10
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11
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05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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12 ngx_int_t ngx_spawn_process(ngx_cycle_t *cycle,
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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13 ngx_spawn_proc_pt proc, void *data,
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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14 char *name, ngx_int_t respawn)
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71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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15 {
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05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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16 sigset_t set, oset;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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17 ngx_pid_t pid;
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18
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05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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19 if (respawn < 0) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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20 sigemptyset(&set);
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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21 sigaddset(&set, SIGCHLD);
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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22 if (sigprocmask(SIG_BLOCK, &set, &oset) == -1) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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23 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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24 "sigprocmask() failed while spawning %s", name);
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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25 return NGX_ERROR;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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26 }
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27 }
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28
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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29 pid = fork();
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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30
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05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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31 if (pid == -1) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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32 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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33 "fork() failed while spawning \"%s\"", name);
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34 }
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35
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36 if (pid == -1 || pid == 0) {
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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37 if (sigprocmask(SIG_SETMASK, &oset, &set) == -1) {
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05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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38 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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39 "sigprocmask() failed while spawning %s", name);
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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40 return NGX_ERROR;
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71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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41 }
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42 }
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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43
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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44 switch (pid) {
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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45 case -1:
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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46 return NGX_ERROR;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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47
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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48 case 0:
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05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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49 proc(cycle, data);
191
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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50 break;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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51
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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52 default:
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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53 break;
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71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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54 }
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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55
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05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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56 ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0,
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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57 "spawn %s: " PID_T_FMT, name, pid);
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58
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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59 if (respawn >= 0) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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60 ngx_processes[respawn].pid = pid;
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61 ngx_processes[respawn].exited = 0;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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62 return NGX_OK;
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63 }
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64
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65 ngx_processes[ngx_last_process].pid = pid;
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66 ngx_processes[ngx_last_process].proc = proc;
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67 ngx_processes[ngx_last_process].data = data;
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68 ngx_processes[ngx_last_process].name = name;
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69 ngx_processes[ngx_last_process].respawn =
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70 (respawn == NGX_PROCESS_RESPAWN) ? 1 : 0;
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71 ngx_processes[ngx_last_process].detached =
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72 (respawn == NGX_PROCESS_DETACHED) ? 1 : 0;
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73 ngx_processes[ngx_last_process].exited = 0;
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74 ngx_processes[ngx_last_process].exiting = 0;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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75 ngx_last_process++;
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71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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76
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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77 if (sigprocmask(SIG_SETMASK, &oset, &set) == -1) {
218
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78 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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79 "sigprocmask() failed while spawning %s", name);
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80 return NGX_ERROR;
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81 }
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82
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83 return NGX_OK;
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84 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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85
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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86
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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87 ngx_int_t ngx_exec(ngx_cycle_t *cycle, ngx_exec_ctx_t *ctx)
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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88 {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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89 if (ngx_spawn_process(cycle, ngx_exec_proc, ctx, ctx->name,
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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90 NGX_PROCESS_DETACHED) == NGX_ERROR)
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91 {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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92 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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93 "can not spawn %s", ctx->name);
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94 return NGX_ERROR;
191
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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95 }
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96
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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97 return NGX_OK;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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98 }
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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99
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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100
218
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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101 static void ngx_exec_proc(ngx_cycle_t *cycle, void *data)
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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102 {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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103 ngx_exec_ctx_t *ctx = data;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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104
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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105 if (execve(ctx->path, ctx->argv, ctx->envp) == -1) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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106 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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107 "execve() failed while executing %s \"%s\"",
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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108 ctx->name, ctx->path);
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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109 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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110
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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111 exit(1);
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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112 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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113
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114
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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115 void ngx_signal_processes(ngx_cycle_t *cycle, ngx_int_t signal)
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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116 {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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diff changeset
117 sigset_t set, oset;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
118 ngx_uint_t i;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
119
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
120 sigemptyset(&set);
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
121 sigaddset(&set, SIGCHLD);
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
122 if (sigprocmask(SIG_BLOCK, &set, &oset) == -1) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
123 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
124 "sigprocmask() failed while signaling processes");
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
125 return;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
126 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
127
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
128 for (i = 0; i < ngx_last_process; i++) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
129
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
130 if (ngx_processes[i].detached) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
131 continue;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
132 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
133
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
134 if (ngx_processes[i].exited) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
135 if (i != --ngx_last_process) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
136 ngx_processes[i--] = ngx_processes[ngx_last_process];
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
137 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
138 continue;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
139 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
140
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
141 ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0,
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
142 "kill (" PID_T_FMT ", %d)" ,
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
143 ngx_processes[i].pid, signal);
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
144
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
145 if (kill(ngx_processes[i].pid, signal) == -1) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
146 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
147 "kill(%d, %d) failed", ngx_processes[i].pid, signal);
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
148 continue;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
149 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
150
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
151 if (signal != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
152 ngx_processes[i].exiting = 1;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
153 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
154 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
155
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
156 if (sigprocmask(SIG_SETMASK, &oset, &set) == -1) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
157 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
158 "sigprocmask() failed while signaling processes");
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
159 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
160 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
161
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
162
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
163 void ngx_respawn_processes(ngx_cycle_t *cycle)
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
164 {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
165 sigset_t set, oset;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
166 ngx_uint_t i;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
167
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
168 sigemptyset(&set);
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
169 sigaddset(&set, SIGCHLD);
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
170 if (sigprocmask(SIG_BLOCK, &set, &oset) == -1) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
171 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
172 "sigprocmask() failed while respawning processes");
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
173 return;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
174 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
175
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
176 /*
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
177 * to avoid a race condition we can check and set value of ngx_respawn
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
178 * only in signal handler or while SIGCHLD is blocked
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
179 */
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
180
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
181 if (ngx_respawn) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
182
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
183 for (i = 0; i < ngx_last_process; i++) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
184 if (!ngx_processes[i].exited) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
185 continue;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
186 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
187
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
188 if (!ngx_processes[i].respawn) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
189 if (i != --ngx_last_process) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
190 ngx_processes[i--] = ngx_processes[ngx_last_process];
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
191 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
192 continue;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
193 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
194
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
195 if (ngx_spawn_process(cycle,
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
196 ngx_processes[i].proc, ngx_processes[i].data,
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
197 ngx_processes[i].name, i) == NGX_ERROR)
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
198 {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
199 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
200 "can not respawn %s", ngx_processes[i].name);
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
201 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
202 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
203
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
204 ngx_respawn = 0;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
205 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
206
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
207 if (sigprocmask(SIG_SETMASK, &oset, &set) == -1) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
208 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
209 "sigprocmask() failed while respawning processes");
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
210 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
211 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
212
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
213
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
214 #if 0
191
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
215 void ngx_sigchld_handler(int signo)
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
216 {
218
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
217 int status;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
218 char *process;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
219 ngx_pid_t pid;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
220 ngx_err_t err;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
221 ngx_uint_t i, one;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
222 struct timeval tv;
191
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
223
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
224 ngx_gettimeofday(&tv);
218
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
225 ngx_time_update(tv.tv_sec);
191
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
226
218
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
227 ngx_log_error(NGX_LOG_INFO, ngx_cycle->log, 0,
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
228 "signal #%d (SIGCHLD) received", signo);
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
229 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
230 #endif
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
231
191
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
232
218
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
233 void ngx_process_get_status()
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
234 {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
235 int status;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
236 char *process;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
237 ngx_pid_t pid;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
238 ngx_err_t err;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
239 ngx_uint_t i, one;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
240 struct timeval tv;
191
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
241 one = 0;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
242
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
243 for ( ;; ) {
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
244 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
245
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
246 if (pid == 0) {
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
247 return;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
248 }
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
249
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
250 if (pid == -1) {
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
251 err = ngx_errno;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
252
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
253 if (err == NGX_EINTR) {
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
254 continue;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
255 }
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
256
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
257 if (err == NGX_ECHILD && one) {
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
258 return;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
259 }
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
260
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
261 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, errno,
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
262 "waitpid() failed");
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
263 return;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
264 }
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
265
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
266 one = 1;
218
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
267 process = "";
191
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
268
218
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
269 for (i = 0; i < ngx_last_process; i++) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
270 if (ngx_processes[i].pid == pid) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
271 ngx_processes[i].status = status;
191
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
272
218
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
273 if (!ngx_processes[i].exiting) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
274 ngx_processes[i].exited = 1;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
275
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
276 if (ngx_processes[i].respawn) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
277 ngx_respawn = 1;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
278 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
279 }
191
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
280
218
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
281 process = ngx_processes[i].name;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
282 break;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
283 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
284 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
285
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
286 if (i == ngx_last_process) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
287 process = "unknown process";
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
288 }
191
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
289
218
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
290 if (WTERMSIG(status)) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
291 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0,
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
292 "%s " PID_T_FMT " exited on signal %d%s",
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
293 process, pid, WTERMSIG(status),
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
294 WCOREDUMP(status) ? " (core dumped)" : "");
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
295
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
296 } else {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
297 ngx_log_error(NGX_LOG_INFO, ngx_cycle->log, 0,
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
298 "%s " PID_T_FMT " exited with code %d",
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
299 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
300 }
191
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
301 }
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
302 }