Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_posix_init.c @ 5707:31dd63dcb9ea
Events: use eventfd() instead of syscall(SYS_eventfd) if possible.
This fixes --with-file-aio support on systems that lack eventfd()
syscall, notably aarch64 Linux.
The syscall(SYS_eventfd) may still be necessary on systems that
have eventfd() syscall in the kernel but lack it in glibc, e.g.
as seen in the current CentOS 5 release.
author | Ruslan Ermilov <ru@nginx.com> |
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date | Fri, 23 May 2014 16:37:05 +0400 |
parents | 1209b8a7b077 |
children | 16013b71feed |
rev | line source |
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441
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1 |
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2 /* |
444
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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6 |
93
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
539 | 10 #include <nginx.h> |
93
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11 |
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12 |
473 | 13 ngx_int_t ngx_ncpu; |
14 ngx_int_t ngx_max_sockets; | |
15 ngx_uint_t ngx_inherited_nonblocking; | |
16 ngx_uint_t ngx_tcp_nodelay_and_tcp_nopush; | |
449
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17 |
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18 |
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19 struct rlimit rlmt; |
93
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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, |
1689 | 25 ngx_udp_unix_recv, |
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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 |
539 | 32 ngx_int_t |
33 ngx_os_init(ngx_log_t *log) | |
455 | 34 { |
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35 ngx_uint_t n; |
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36 |
539 | 37 #if (NGX_HAVE_OS_SPECIFIC_INIT) |
38 if (ngx_os_specific_init(log) != NGX_OK) { | |
39 return NGX_ERROR; | |
40 } | |
41 #endif | |
93
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42 |
509 | 43 ngx_init_setproctitle(log); |
44 | |
346
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45 ngx_pagesize = getpagesize(); |
589 | 46 ngx_cacheline_size = NGX_CPU_CACHE_LINE; |
346
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47 |
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48 for (n = ngx_pagesize; n >>= 1; ngx_pagesize_shift++) { /* void */ } |
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49 |
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50 #if (NGX_HAVE_SC_NPROCESSORS_ONLN) |
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51 if (ngx_ncpu == 0) { |
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52 ngx_ncpu = sysconf(_SC_NPROCESSORS_ONLN); |
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53 } |
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54 #endif |
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55 |
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56 if (ngx_ncpu < 1) { |
373
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57 ngx_ncpu = 1; |
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58 } |
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59 |
611 | 60 ngx_cpuinfo(); |
61 | |
93
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62 if (getrlimit(RLIMIT_NOFILE, &rlmt) == -1) { |
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63 ngx_log_error(NGX_LOG_ALERT, log, errno, |
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64 "getrlimit(RLIMIT_NOFILE) failed)"); |
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65 return NGX_ERROR; |
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66 } |
577 | 67 |
563 | 68 ngx_max_sockets = (ngx_int_t) rlmt.rlim_cur; |
93
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69 |
3786 | 70 #if (NGX_HAVE_INHERITED_NONBLOCK || NGX_HAVE_ACCEPT4) |
93
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71 ngx_inherited_nonblocking = 1; |
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72 #else |
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73 ngx_inherited_nonblocking = 0; |
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74 #endif |
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75 |
800 | 76 srandom(ngx_time()); |
77 | |
93
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78 return NGX_OK; |
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79 } |
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80 |
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81 |
539 | 82 void |
83 ngx_os_status(ngx_log_t *log) | |
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84 { |
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85 ngx_log_error(NGX_LOG_NOTICE, log, 0, NGINX_VER_BUILD); |
541 | 86 |
557 | 87 #ifdef NGX_COMPILER |
88 ngx_log_error(NGX_LOG_NOTICE, log, 0, "built by " NGX_COMPILER); | |
89 #endif | |
90 | |
539 | 91 #if (NGX_HAVE_OS_SPECIFIC_INIT) |
92 ngx_os_specific_status(log); | |
93 #endif | |
94 | |
531 | 95 ngx_log_error(NGX_LOG_NOTICE, log, 0, |
461 | 96 "getrlimit(RLIMIT_NOFILE): %r:%r", |
449
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97 rlmt.rlim_cur, rlmt.rlim_max); |
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98 } |
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99 |
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100 |
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101 #if 0 |
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102 |
539 | 103 ngx_int_t |
104 ngx_posix_post_conf_init(ngx_log_t *log) | |
93
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105 { |
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106 ngx_fd_t pp[2]; |
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107 |
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108 if (pipe(pp) == -1) { |
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109 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "pipe() failed"); |
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110 return NGX_ERROR; |
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111 } |
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112 |
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113 if (dup2(pp[1], STDERR_FILENO) == -1) { |
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114 ngx_log_error(NGX_LOG_EMERG, log, errno, "dup2(STDERR) failed"); |
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115 return NGX_ERROR; |
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116 } |
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117 |
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118 if (pp[1] > STDERR_FILENO) { |
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119 if (close(pp[1]) == -1) { |
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120 ngx_log_error(NGX_LOG_EMERG, log, errno, "close() failed"); |
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121 return NGX_ERROR; |
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122 } |
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123 } |
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124 |
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125 return NGX_OK; |
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126 } |
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127 |
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128 #endif |