Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_process.c @ 205:4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Thu, 04 Dec 2003 14:53:00 +0000 |
parents | 8dee38ea9117 |
children | 05592fd7a436 |
rev | line source |
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191
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nginx-0.0.1-2003-11-19-19:26:41 import
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1 |
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nginx-0.0.1-2003-11-19-19:26:41 import
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2 #include <ngx_config.h> |
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nginx-0.0.1-2003-11-19-19:26:41 import
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3 #include <ngx_core.h> |
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4 |
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5 |
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nginx-0.0.1-2003-11-19-19:26:41 import
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6 void testone(ngx_log_t *log) |
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nginx-0.0.1-2003-11-19-19:26:41 import
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7 { |
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nginx-0.0.1-2003-11-19-19:26:41 import
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8 ngx_log_debug(log, "child process"); |
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nginx-0.0.1-2003-11-19-19:26:41 import
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9 ngx_msleep(5000); |
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nginx-0.0.1-2003-11-19-19:26:41 import
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10 exit(0); |
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nginx-0.0.1-2003-11-19-19:26:41 import
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11 } |
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12 |
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13 |
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nginx-0.0.1-2003-11-19-19:26:41 import
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14 int ngx_spawn_process(ngx_log_t *log) |
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nginx-0.0.1-2003-11-19-19:26:41 import
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15 { |
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nginx-0.0.1-2003-11-19-19:26:41 import
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16 pid_t pid; |
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nginx-0.0.1-2003-11-19-19:26:41 import
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17 sigset_t set, oset; |
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18 |
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19 sigemptyset(&set); |
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nginx-0.0.1-2003-11-19-19:26:41 import
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20 sigaddset(&set, SIGCHLD); |
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nginx-0.0.1-2003-11-19-19:26:41 import
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21 if (sigprocmask(SIG_BLOCK, &set, &oset) == -1) { |
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nginx-0.0.1-2003-11-19-19:26:41 import
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22 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, "sigprocmask() failed"); |
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23 } |
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24 |
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nginx-0.0.1-2003-11-19-19:26:41 import
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25 pid = fork(); |
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26 |
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nginx-0.0.1-2003-11-19-19:26:41 import
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27 if (pid == -1 || pid == 0) { |
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nginx-0.0.1-2003-11-19-19:26:41 import
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28 if (sigprocmask(SIG_SETMASK, &oset, &set) == -1) { |
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29 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, |
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30 "sigprocmask() failed"); |
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31 } |
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32 } |
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33 |
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nginx-0.0.1-2003-11-19-19:26:41 import
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34 switch (pid) { |
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nginx-0.0.1-2003-11-19-19:26:41 import
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35 case -1: |
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nginx-0.0.1-2003-11-19-19:26:41 import
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36 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, "fork() failed"); |
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37 return NGX_ERROR; |
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nginx-0.0.1-2003-11-19-19:26:41 import
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38 |
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39 case 0: |
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nginx-0.0.1-2003-11-19-19:26:41 import
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40 testone(log); |
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nginx-0.0.1-2003-11-19-19:26:41 import
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41 break; |
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nginx-0.0.1-2003-11-19-19:26:41 import
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42 |
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nginx-0.0.1-2003-11-19-19:26:41 import
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43 default: |
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nginx-0.0.1-2003-11-25-23:44:56 import
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191
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44 break; |
191
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45 } |
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46 |
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nginx-0.0.1-2003-11-25-23:44:56 import
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47 ngx_log_debug(log, "parent process, child: " PID_T_FMT _ pid); |
191
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48 |
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nginx-0.0.1-2003-11-19-19:26:41 import
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49 /* book keeping */ |
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50 |
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nginx-0.0.1-2003-11-19-19:26:41 import
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51 if (sigprocmask(SIG_SETMASK, &oset, &set) == -1) { |
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nginx-0.0.1-2003-11-19-19:26:41 import
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52 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, "sigprocmask() failed"); |
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53 } |
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54 |
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55 return NGX_OK; |
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nginx-0.0.1-2003-11-19-19:26:41 import
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56 } |
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57 |
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58 |
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59 void ngx_sigchld_handler(int signo) |
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60 { |
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nginx-0.0.1-2003-11-19-19:26:41 import
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61 int status, one; |
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62 pid_t pid; |
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63 ngx_err_t err; |
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64 struct timeval tv; |
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65 |
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66 ngx_gettimeofday(&tv); |
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67 |
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68 if (ngx_cached_time != tv.tv_sec) { |
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69 ngx_cached_time = tv.tv_sec; |
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70 ngx_time_update(); |
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71 } |
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72 |
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73 one = 0; |
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74 |
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75 for ( ;; ) { |
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76 pid = waitpid(-1, &status, WNOHANG); |
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77 |
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78 if (pid == 0) { |
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79 return; |
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80 } |
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81 |
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82 if (pid == -1) { |
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83 err = ngx_errno; |
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84 |
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85 if (err == NGX_EINTR) { |
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86 continue; |
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87 } |
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88 |
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89 if (err == NGX_ECHILD && one) { |
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90 return; |
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91 } |
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92 |
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93 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, errno, |
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94 "waitpid() failed"); |
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95 return; |
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96 } |
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97 |
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98 one = 1; |
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99 |
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100 ngx_log_error(NGX_LOG_INFO, ngx_cycle->log, 0, |
195
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191
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101 "process " PID_T_FMT " exited with code %d", pid, status); |
191
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102 |
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103 /* TODO: restart handler */ |
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104 |
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105 #if 0 |
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106 ngx_msleep(2000); |
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107 #endif |
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108 |
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nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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109 #if 0 |
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
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110 ngx_spawn_process(ngx_cycle->log); |
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
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111 #endif |
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
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112 } |
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
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113 } |