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annotate src/os/unix/ngx_process.c @ 191:71ce40b3c37b

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nginx-0.0.1-2003-11-19-19:26:41 import
author Igor Sysoev <igor@sysoev.ru>
date Wed, 19 Nov 2003 16:26:41 +0000
parents
children 8dee38ea9117
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rev   line source
191
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
Igor Sysoev <igor@sysoev.ru>
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2 #include <ngx_config.h>
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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3 #include <ngx_core.h>
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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4
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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5
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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6 void testone(ngx_log_t *log)
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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7 {
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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8 ngx_log_debug(log, "child process");
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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9 ngx_msleep(5000);
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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10 exit(0);
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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11 }
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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12
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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13
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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14 int ngx_spawn_process(ngx_log_t *log)
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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15 {
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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16 pid_t pid;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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17 sigset_t set, oset;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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18
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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19 sigemptyset(&set);
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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20 sigaddset(&set, SIGCHLD);
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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21 if (sigprocmask(SIG_BLOCK, &set, &oset) == -1) {
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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22 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, "sigprocmask() failed");
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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23 }
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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24
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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25 pid = fork();
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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26
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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27 if (pid == -1 || pid == 0) {
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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28 if (sigprocmask(SIG_SETMASK, &oset, &set) == -1) {
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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29 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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30 "sigprocmask() failed");
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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31 }
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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32 }
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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33
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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34 switch (pid) {
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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35 case -1:
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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36 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, "fork() failed");
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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37 return NGX_ERROR;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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38
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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39 case 0:
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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40 testone(log);
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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41 break;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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42
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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43 default:
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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44 }
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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45
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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46 ngx_log_debug(log, "parent process, child: " PID_FMT _ pid);
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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47
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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48 /* book keeping */
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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49
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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50 if (sigprocmask(SIG_SETMASK, &oset, &set) == -1) {
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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51 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, "sigprocmask() failed");
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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52 }
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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53
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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54 return NGX_OK;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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55 }
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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56
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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57
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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58 void ngx_sigchld_handler(int signo)
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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59 {
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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60 int status, one;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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61 pid_t pid;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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62 ngx_err_t err;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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63 struct timeval tv;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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64
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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65 ngx_gettimeofday(&tv);
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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66
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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67 if (ngx_cached_time != tv.tv_sec) {
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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68 ngx_cached_time = tv.tv_sec;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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69 ngx_time_update();
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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70 }
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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71
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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72 one = 0;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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73
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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74 for ( ;; ) {
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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75 pid = waitpid(-1, &status, WNOHANG);
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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76
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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77 if (pid == 0) {
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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78 return;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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79 }
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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80
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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81 if (pid == -1) {
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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82 err = ngx_errno;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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83
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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84 if (err == NGX_EINTR) {
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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85 continue;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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86 }
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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87
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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88 if (err == NGX_ECHILD && one) {
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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89 return;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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90 }
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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91
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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92 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>
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93 "waitpid() failed");
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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94 return;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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95 }
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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96
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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97 one = 1;
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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98
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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99 ngx_log_error(NGX_LOG_INFO, ngx_cycle->log, 0,
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
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100 "process " PID_FMT " exited with code %d", pid, status);
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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101
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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102 /* TODO: restart handler */
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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103
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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104 #if 0
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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105 ngx_msleep(2000);
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
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106 #endif
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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107
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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108 #if 0
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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109 ngx_spawn_process(ngx_cycle->log);
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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110 #endif
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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111 }
71ce40b3c37b nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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112 }