Annotation of embedaddon/nginx/src/os/unix/ngx_posix_init.c, revision 1.1.1.1
1.1 misho 1:
2: /*
3: * Copyright (C) Igor Sysoev
4: * Copyright (C) Nginx, Inc.
5: */
6:
7:
8: #include <ngx_config.h>
9: #include <ngx_core.h>
10: #include <nginx.h>
11:
12:
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;
17:
18:
19: struct rlimit rlmt;
20:
21:
22: ngx_os_io_t ngx_os_io = {
23: ngx_unix_recv,
24: ngx_readv_chain,
25: ngx_udp_unix_recv,
26: ngx_unix_send,
27: ngx_writev_chain,
28: 0
29: };
30:
31:
32: ngx_int_t
33: ngx_os_init(ngx_log_t *log)
34: {
35: ngx_uint_t n;
36:
37: #if (NGX_HAVE_OS_SPECIFIC_INIT)
38: if (ngx_os_specific_init(log) != NGX_OK) {
39: return NGX_ERROR;
40: }
41: #endif
42:
43: ngx_init_setproctitle(log);
44:
45: ngx_pagesize = getpagesize();
46: ngx_cacheline_size = NGX_CPU_CACHE_LINE;
47:
48: for (n = ngx_pagesize; n >>= 1; ngx_pagesize_shift++) { /* void */ }
49:
50: #if (NGX_HAVE_SC_NPROCESSORS_ONLN)
51: if (ngx_ncpu == 0) {
52: ngx_ncpu = sysconf(_SC_NPROCESSORS_ONLN);
53: }
54: #endif
55:
56: if (ngx_ncpu < 1) {
57: ngx_ncpu = 1;
58: }
59:
60: ngx_cpuinfo();
61:
62: if (getrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
63: ngx_log_error(NGX_LOG_ALERT, log, errno,
64: "getrlimit(RLIMIT_NOFILE) failed)");
65: return NGX_ERROR;
66: }
67:
68: ngx_max_sockets = (ngx_int_t) rlmt.rlim_cur;
69:
70: #if (NGX_HAVE_INHERITED_NONBLOCK || NGX_HAVE_ACCEPT4)
71: ngx_inherited_nonblocking = 1;
72: #else
73: ngx_inherited_nonblocking = 0;
74: #endif
75:
76: srandom(ngx_time());
77:
78: return NGX_OK;
79: }
80:
81:
82: void
83: ngx_os_status(ngx_log_t *log)
84: {
85: ngx_log_error(NGX_LOG_NOTICE, log, 0, NGINX_VER);
86:
87: #ifdef NGX_COMPILER
88: ngx_log_error(NGX_LOG_NOTICE, log, 0, "built by " NGX_COMPILER);
89: #endif
90:
91: #if (NGX_HAVE_OS_SPECIFIC_INIT)
92: ngx_os_specific_status(log);
93: #endif
94:
95: ngx_log_error(NGX_LOG_NOTICE, log, 0,
96: "getrlimit(RLIMIT_NOFILE): %r:%r",
97: rlmt.rlim_cur, rlmt.rlim_max);
98: }
99:
100:
101: #if 0
102:
103: ngx_int_t
104: ngx_posix_post_conf_init(ngx_log_t *log)
105: {
106: ngx_fd_t pp[2];
107:
108: if (pipe(pp) == -1) {
109: ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "pipe() failed");
110: return NGX_ERROR;
111: }
112:
113: if (dup2(pp[1], STDERR_FILENO) == -1) {
114: ngx_log_error(NGX_LOG_EMERG, log, errno, "dup2(STDERR) failed");
115: return NGX_ERROR;
116: }
117:
118: if (pp[1] > STDERR_FILENO) {
119: if (close(pp[1]) == -1) {
120: ngx_log_error(NGX_LOG_EMERG, log, errno, "close() failed");
121: return NGX_ERROR;
122: }
123: }
124:
125: return NGX_OK;
126: }
127:
128: #endif
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