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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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660
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4 * Copyright (C) Nginx, Inc.
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0
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5 */
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6
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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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88
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10 #include <nginx.h>
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0
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11
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12
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22
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13 ngx_int_t ngx_ncpu;
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14 ngx_int_t ngx_max_sockets;
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15 ngx_uint_t ngx_inherited_nonblocking;
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16 ngx_uint_t ngx_tcp_nodelay_and_tcp_nopush;
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0
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17
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18
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19 struct rlimit rlmt;
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20
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21
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22 ngx_os_io_t ngx_os_io = {
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23 ngx_unix_recv,
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24 ngx_readv_chain,
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354
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25 ngx_udp_unix_recv,
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438
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26 ngx_unix_send,
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27 ngx_writev_chain,
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28 0
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29 };
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30
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31
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88
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32 ngx_int_t
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33 ngx_os_init(ngx_log_t *log)
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4
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34 {
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258
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35 ngx_uint_t n;
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36
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88
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37 #if (NGX_HAVE_OS_SPECIFIC_INIT)
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38 if (ngx_os_specific_init(log) != NGX_OK) {
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39 return NGX_ERROR;
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40 }
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41 #endif
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0
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42
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58
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43 ngx_init_setproctitle(log);
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44
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45 ngx_pagesize = getpagesize();
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138
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46 ngx_cacheline_size = NGX_CPU_CACHE_LINE;
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0
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47
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258
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48 for (n = ngx_pagesize; n >>= 1; ngx_pagesize_shift++) { /* void */ }
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49
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0
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50 if (ngx_ncpu == 0) {
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51 ngx_ncpu = 1;
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52 }
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53
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160
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54 ngx_cpuinfo();
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55
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0
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56 if (getrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
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57 ngx_log_error(NGX_LOG_ALERT, log, errno,
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58 "getrlimit(RLIMIT_NOFILE) failed)");
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59 return NGX_ERROR;
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60 }
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126
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61
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112
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62 ngx_max_sockets = (ngx_int_t) rlmt.rlim_cur;
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0
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63
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604
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64 #if (NGX_HAVE_INHERITED_NONBLOCK || NGX_HAVE_ACCEPT4)
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65 ngx_inherited_nonblocking = 1;
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66 #else
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67 ngx_inherited_nonblocking = 0;
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68 #endif
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69
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250
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70 srandom(ngx_time());
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71
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72 return NGX_OK;
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73 }
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74
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75
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88
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76 void
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77 ngx_os_status(ngx_log_t *log)
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0
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78 {
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90
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79 ngx_log_error(NGX_LOG_NOTICE, log, 0, NGINX_VER);
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80
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106
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81 #ifdef NGX_COMPILER
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82 ngx_log_error(NGX_LOG_NOTICE, log, 0, "built by " NGX_COMPILER);
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83 #endif
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84
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88
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85 #if (NGX_HAVE_OS_SPECIFIC_INIT)
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86 ngx_os_specific_status(log);
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87 #endif
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88
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80
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89 ngx_log_error(NGX_LOG_NOTICE, log, 0,
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10
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90 "getrlimit(RLIMIT_NOFILE): %r:%r",
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0
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91 rlmt.rlim_cur, rlmt.rlim_max);
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92 }
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93
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94
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88
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95 ngx_int_t
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96 ngx_posix_post_conf_init(ngx_log_t *log)
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0
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97 {
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98 ngx_fd_t pp[2];
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99
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100 if (pipe(pp) == -1) {
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101 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "pipe() failed");
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102 return NGX_ERROR;
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103 }
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104
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105 if (dup2(pp[1], STDERR_FILENO) == -1) {
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106 ngx_log_error(NGX_LOG_EMERG, log, errno, "dup2(STDERR) failed");
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107 return NGX_ERROR;
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108 }
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109
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110 if (pp[1] > STDERR_FILENO) {
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111 if (close(pp[1]) == -1) {
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112 ngx_log_error(NGX_LOG_EMERG, log, errno, "close() failed");
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113 return NGX_ERROR;
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114 }
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115 }
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116
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117 return NGX_OK;
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118 }
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