Mercurial > hg > nginx-vendor-current
view src/os/unix/ngx_posix_init.c @ 34:aab2ea7c0458 NGINX_0_1_17
nginx 0.1.17
*) Change: the ngx_http_rewrite_module was rewritten from the scratch.
Now it is possible to redirect, to return the error codes, to check
the variables and referrers. The directives can be used inside
locations. The redirect directive was canceled.
*) Feature: the ngx_http_geo_module.
*) Feature: the proxy_set_x_var and fastcgi_set_var directives.
*) Bugfix: the location configuration with "=" modifier may be used in
another location.
*) Bugfix: the correct content type was set only for requests that use
small caps letters in extension.
*) Bugfix: if the proxy_pass or fastcgi_pass directives were set in the
location, and access was denied, and the error was redirected to a
static page, then the segmentation fault occurred.
*) Bugfix: if in a proxied "Location" header was a relative URL, then a
host name and a slash were added to them; bug appeared in 0.1.14.
*) Bugfix: the system error message was not logged on Linux.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Thu, 03 Feb 2005 00:00:00 +0300 |
parents | 45fe5b98a9de |
children | 6cfc63e68377 |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.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; #if (NGX_POSIX_IO) ngx_os_io_t ngx_os_io = { ngx_unix_recv, ngx_readv_chain, NULL, ngx_writev_chain, 0 }; int ngx_os_init(ngx_log_t *log) { return ngx_posix_init(log); } void ngx_os_status(ngx_log_t *log) { ngx_posix_status(log); } #endif void ngx_signal_handler(int signo); typedef struct { int signo; char *signame; void (*handler)(int signo); } ngx_signal_t; ngx_signal_t signals[] = { { ngx_signal_value(NGX_RECONFIGURE_SIGNAL), "SIG" ngx_value(NGX_RECONFIGURE_SIGNAL), ngx_signal_handler }, { ngx_signal_value(NGX_REOPEN_SIGNAL), "SIG" ngx_value(NGX_REOPEN_SIGNAL), ngx_signal_handler }, { ngx_signal_value(NGX_NOACCEPT_SIGNAL), "SIG" ngx_value(NGX_NOACCEPT_SIGNAL), ngx_signal_handler }, { ngx_signal_value(NGX_TERMINATE_SIGNAL), "SIG" ngx_value(NGX_TERMINATE_SIGNAL), ngx_signal_handler }, { ngx_signal_value(NGX_SHUTDOWN_SIGNAL), "SIG" ngx_value(NGX_SHUTDOWN_SIGNAL), ngx_signal_handler }, { ngx_signal_value(NGX_CHANGEBIN_SIGNAL), "SIG" ngx_value(NGX_CHANGEBIN_SIGNAL), ngx_signal_handler }, { SIGALRM, "SIGALRM", ngx_signal_handler }, { SIGINT, "SIGINT", ngx_signal_handler }, { SIGIO, "SIGIO", ngx_signal_handler }, { SIGCHLD, "SIGCHLD", ngx_signal_handler }, { SIGPIPE, "SIGPIPE, SIG_IGN", SIG_IGN }, { 0, NULL, NULL } }; ngx_int_t ngx_posix_init(ngx_log_t *log) { ngx_signal_t *sig; struct sigaction sa; ngx_pagesize = getpagesize(); if (ngx_ncpu == 0) { ngx_ncpu = 1; } for (sig = signals; sig->signo != 0; sig++) { ngx_memzero(&sa, sizeof(struct sigaction)); sa.sa_handler = sig->handler; sigemptyset(&sa.sa_mask); if (sigaction(sig->signo, &sa, NULL) == -1) { ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "sigaction(%s) failed", sig->signame); return NGX_ERROR; } } if (getrlimit(RLIMIT_NOFILE, &rlmt) == -1) { ngx_log_error(NGX_LOG_ALERT, log, errno, "getrlimit(RLIMIT_NOFILE) failed)"); return NGX_ERROR; } ngx_max_sockets = rlmt.rlim_cur; #if (NGX_HAVE_INHERITED_NONBLOCK) ngx_inherited_nonblocking = 1; #else ngx_inherited_nonblocking = 0; #endif return NGX_OK; } void ngx_posix_status(ngx_log_t *log) { ngx_log_error(NGX_LOG_INFO, log, 0, "getrlimit(RLIMIT_NOFILE): %r:%r", rlmt.rlim_cur, rlmt.rlim_max); } void ngx_signal_handler(int signo) { char *action; struct timeval tv; ngx_int_t ignore; ngx_err_t err; ngx_signal_t *sig; ignore = 0; err = ngx_errno; for (sig = signals; sig->signo != 0; sig++) { if (sig->signo == signo) { break; } } ngx_gettimeofday(&tv); ngx_time_update(tv.tv_sec); action = ""; switch (ngx_process) { case NGX_PROCESS_MASTER: case NGX_PROCESS_SINGLE: switch (signo) { case ngx_signal_value(NGX_SHUTDOWN_SIGNAL): ngx_quit = 1; action = ", shutting down"; break; case ngx_signal_value(NGX_TERMINATE_SIGNAL): case SIGINT: ngx_terminate = 1; action = ", exiting"; break; case ngx_signal_value(NGX_NOACCEPT_SIGNAL): ngx_noaccept = 1; action = ", stop the accepting connections"; break; case ngx_signal_value(NGX_RECONFIGURE_SIGNAL): ngx_reconfigure = 1; action = ", reconfiguring"; break; case ngx_signal_value(NGX_REOPEN_SIGNAL): ngx_reopen = 1; action = ", reopening logs"; break; case ngx_signal_value(NGX_CHANGEBIN_SIGNAL): if (getppid() > 1 || ngx_new_binary > 0) { /* * Ignore the signal in the new binary if its parent is * not the init process, i.e. the old binary's process * is still running. Or ingore the signal in the old binary's * process if the new binary's process is already running. */ action = ", ignoring"; ignore = 1; break; } ngx_change_binary = 1; action = ", changing binary"; break; case SIGALRM: if (!ngx_terminate) { ngx_timer = 1; action = ", shutting down old worker processes"; } break; case SIGIO: ngx_sigio = 1; break; case SIGCHLD: ngx_reap = 1; break; } break; case NGX_PROCESS_WORKER: switch (signo) { case ngx_signal_value(NGX_NOACCEPT_SIGNAL): ngx_debug_quit = 1; case ngx_signal_value(NGX_SHUTDOWN_SIGNAL): ngx_quit = 1; action = ", shutting down"; break; case ngx_signal_value(NGX_TERMINATE_SIGNAL): case SIGINT: ngx_terminate = 1; action = ", exiting"; break; case ngx_signal_value(NGX_REOPEN_SIGNAL): ngx_reopen = 1; action = ", reopening logs"; break; case ngx_signal_value(NGX_RECONFIGURE_SIGNAL): case ngx_signal_value(NGX_CHANGEBIN_SIGNAL): case SIGIO: action = ", ignoring"; break; } break; } ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, "signal %d (%s) received%s", signo, sig->signame, action); if (ignore) { ngx_log_error(NGX_LOG_CRIT, ngx_cycle->log, 0, "the changing binary signal is ignored: " "you should shutdown or terminate " "before either old or new binary's process"); } if (signo == SIGCHLD) { ngx_process_get_status(); } ngx_set_errno(err); } int 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; }