| |
| /* |
| * Copyright (C) Igor Sysoev |
| * Copyright (C) Nginx, Inc. |
| */ |
| |
| |
| #include <ngx_config.h> |
| #include <ngx_core.h> |
| #include <nginx.h> |
| |
| |
| ngx_int_t ngx_ncpu; |
| ngx_int_t ngx_max_sockets; |
| ngx_uint_t ngx_inherited_nonblocking; |
| ngx_uint_t ngx_tcp_nodelay_and_tcp_nopush; |
| |
| |
| struct rlimit rlmt; |
| |
| |
| ngx_os_io_t ngx_os_io = { |
| ngx_unix_recv, |
| ngx_readv_chain, |
| ngx_udp_unix_recv, |
| ngx_unix_send, |
| ngx_udp_unix_send, |
| ngx_udp_unix_sendmsg_chain, |
| ngx_writev_chain, |
| 0 |
| }; |
| |
| |
| ngx_int_t |
| ngx_os_init(ngx_log_t *log) |
| { |
| long value; |
| ngx_time_t *tp; |
| ngx_uint_t n; |
| #if (NGX_HAVE_LEVEL1_DCACHE_LINESIZE) |
| long size; |
| #endif |
| |
| #if (NGX_HAVE_OS_SPECIFIC_INIT) |
| if (ngx_os_specific_init(log) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| #endif |
| |
| if (ngx_init_setproctitle(log) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| |
| value = sysconf(_SC_PAGESIZE); |
| if (value == -1) { |
| ngx_log_error(NGX_LOG_ALERT, log, errno, |
| "sysconf(_SC_PAGESIZE) failed"); |
| return NGX_ERROR; |
| } |
| |
| ngx_pagesize = (ngx_uint_t) value; |
| ngx_cacheline_size = NGX_CPU_CACHE_LINE; |
| |
| for (n = ngx_pagesize; n >>= 1; ngx_pagesize_shift++) { /* void */ } |
| |
| #if (NGX_HAVE_SC_NPROCESSORS_ONLN) |
| if (ngx_ncpu == 0) { |
| ngx_ncpu = sysconf(_SC_NPROCESSORS_ONLN); |
| } |
| #endif |
| |
| if (ngx_ncpu < 1) { |
| ngx_ncpu = 1; |
| } |
| |
| #if (NGX_HAVE_LEVEL1_DCACHE_LINESIZE) |
| size = sysconf(_SC_LEVEL1_DCACHE_LINESIZE); |
| if (size > 0) { |
| ngx_cacheline_size = size; |
| } |
| #endif |
| |
| ngx_cpuinfo(); |
| |
| if (getrlimit(RLIMIT_NOFILE, &rlmt) == -1) { |
| ngx_log_error(NGX_LOG_ALERT, log, errno, |
| "getrlimit(RLIMIT_NOFILE) failed"); |
| return NGX_ERROR; |
| } |
| |
| ngx_max_sockets = (ngx_int_t) rlmt.rlim_cur; |
| |
| #if (NGX_HAVE_INHERITED_NONBLOCK || NGX_HAVE_ACCEPT4) |
| ngx_inherited_nonblocking = 1; |
| #else |
| ngx_inherited_nonblocking = 0; |
| #endif |
| |
| tp = ngx_timeofday(); |
| srandom(((unsigned) ngx_pid << 16) ^ tp->sec ^ tp->msec); |
| |
| return NGX_OK; |
| } |
| |
| |
| void |
| ngx_os_status(ngx_log_t *log) |
| { |
| ngx_log_error(NGX_LOG_NOTICE, log, 0, NGINX_VER_BUILD); |
| |
| #ifdef NGX_COMPILER |
| ngx_log_error(NGX_LOG_NOTICE, log, 0, "built by " NGX_COMPILER); |
| #endif |
| |
| #if (NGX_HAVE_OS_SPECIFIC_INIT) |
| ngx_os_specific_status(log); |
| #endif |
| |
| ngx_log_error(NGX_LOG_NOTICE, log, 0, |
| "getrlimit(RLIMIT_NOFILE): %r:%r", |
| rlmt.rlim_cur, rlmt.rlim_max); |
| } |
| |
| |
| #if 0 |
| |
| ngx_int_t |
| ngx_posix_post_conf_init(ngx_log_t *log) |
| { |
| ngx_fd_t pp[2]; |
| |
| if (pipe(pp) == -1) { |
| ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "pipe() failed"); |
| return NGX_ERROR; |
| } |
| |
| if (dup2(pp[1], STDERR_FILENO) == -1) { |
| ngx_log_error(NGX_LOG_EMERG, log, errno, "dup2(STDERR) failed"); |
| return NGX_ERROR; |
| } |
| |
| if (pp[1] > STDERR_FILENO) { |
| if (close(pp[1]) == -1) { |
| ngx_log_error(NGX_LOG_EMERG, log, errno, "close() failed"); |
| return NGX_ERROR; |
| } |
| } |
| |
| return NGX_OK; |
| } |
| |
| #endif |