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annotate src/os/unix/ngx_daemon.c @ 92:19cc647ecd91

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nginx-0.0.1-2003-05-20-19:37:55 import
author Igor Sysoev <igor@sysoev.ru>
date Tue, 20 May 2003 15:37:55 +0000
parents 3973260705cc
children 00bee6e7b485
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
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1
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2 #include <ngx_config.h>
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3 #include <ngx_core.h>
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4 #include <ngx_log.h>
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5
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6 /* daemon in Linux */
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7
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8 int ngx_daemon(ngx_log_t *log)
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9 {
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10 int fd;
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11
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12 switch (fork()) {
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13 case -1:
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19cc647ecd91 nginx-0.0.1-2003-05-20-19:37:55 import
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14 ngx_log_error(NGX_LOG_EMERG, log, errno, "fork() failed");
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15 return NGX_ERROR;
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16
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17 case 0:
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18 break;
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19
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20 default:
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21 exit(0);
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22 }
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23
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24 if (setsid() == -1) {
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25 ngx_log_error(NGX_LOG_EMERG, log, errno, "setsid() failed");
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26 return NGX_ERROR;
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27 }
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28
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29 #if (__SVR4 || linux)
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30
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31 /* need HUP IGN ? check in Solaris and Linux */
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32
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33 switch (fork()) {
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34 case -1:
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35 ngx_log_error(NGX_LOG_EMERG, log, errno, "fork() failed");
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36 return NGX_ERROR;
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37
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38 case 0:
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39 break;
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40
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41 default:
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42 exit(0);
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43 }
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44
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45 #endif
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46
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47 umask(0);
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48
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49 #if 0
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50 fd = open("/dev/null", O_RDWR);
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51 if (fd == -1) {
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52 ngx_log_error(NGX_LOG_EMERG, log, errno, "open(\"/dev/null\") failed");
86
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53 return NGX_ERROR;
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54 }
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55
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56 if (dup2(fd, STDIN_FILENO) == -1) {
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57 ngx_log_error(NGX_LOG_EMERG, log, errno, "dup2(STDIN) failed");
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58 return NGX_ERROR;
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59 }
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60
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61 if (dup2(fd, STDOUT_FILENO) == -1) {
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62 ngx_log_error(NGX_LOG_EMERG, log, errno, "dup2(STDOUT) failed");
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63 return NGX_ERROR;
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64 }
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65
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66 if (dup2(fd, STDERR_FILENO) == -1) {
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67 ngx_log_error(NGX_LOG_EMERG, log, errno, "dup2(STDERR) failed");
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68 return NGX_ERROR;
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69 }
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70
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71 if (fd > STDERR_FILENO) {
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72 if (close(fd) == -1) {
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73 ngx_log_error(NGX_LOG_EMERG, log, errno, "close() failed");
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74 return NGX_ERROR;
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75 }
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76 }
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77 #endif
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78
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79 return NGX_OK;
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80 }