Mercurial > hg > nginx-quic
view src/core/ngx_connection.c @ 282:30310107dbc9
nginx-0.0.2-2004-03-09-22:47:07 import
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Tue, 09 Mar 2004 19:47:07 +0000 |
parents | 0ba4821f4460 |
children | f81d075ad172 |
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#include <ngx_config.h> #include <ngx_core.h> #include <ngx_event.h> ngx_os_io_t ngx_io; ngx_int_t ngx_set_inherited_sockets(ngx_cycle_t *cycle) { ngx_int_t i; ngx_listening_t *ls; struct sockaddr_in *addr_in; ls = cycle->listening.elts; for (i = 0; i < cycle->listening.nelts; i++) { /* AF_INET only */ ls[i].sockaddr = ngx_palloc(cycle->pool, sizeof(struct sockaddr_in)); if (ls[i].sockaddr == NULL) { return NGX_ERROR; } ls[i].socklen = sizeof(struct sockaddr_in); if (getsockname(ls[i].fd, ls[i].sockaddr, &ls[i].socklen) == -1) { ngx_log_error(NGX_LOG_CRIT, cycle->log, ngx_socket_errno, "getsockname() of the inherited " "socket #%d failed", ls[i].fd); ls[i].ignore = 1; continue; } addr_in = (struct sockaddr_in *) ls[i].sockaddr; if (addr_in->sin_family != AF_INET) { ngx_log_error(NGX_LOG_CRIT, cycle->log, ngx_socket_errno, "the inherited socket #%d has " "unsupported family", ls[i].fd); ls[i].ignore = 1; continue; } ls[i].addr_text_max_len = INET_ADDRSTRLEN; ls[i].addr_text.data = ngx_palloc(cycle->pool, ls[i].addr_text_max_len); if (ls[i].addr_text.data == NULL) { return NGX_ERROR; } ls[i].family = addr_in->sin_family; ls[i].addr_text.len = ngx_sock_ntop(ls[i].family, ls[i].sockaddr, ls[i].addr_text.data, ls[i].addr_text_max_len); if (ls[i].addr_text.len == 0) { return NGX_ERROR; } } return NGX_OK; } ngx_int_t ngx_open_listening_sockets(ngx_cycle_t *cycle) { ngx_int_t tries, failed, reuseaddr, i; ngx_err_t err; ngx_log_t *log; ngx_socket_t s; ngx_listening_t *ls; reuseaddr = 1; #if (NGX_SUPPRESS_WARN) failed = 0; #endif log = cycle->log; /* TODO: tries configurable */ for (tries = /* STUB */ 1; tries; tries--) { failed = 0; /* for each listening socket */ ls = cycle->listening.elts; for (i = 0; i < cycle->listening.nelts; i++) { if (ls[i].ignore) { continue; } if (ls[i].fd != -1) { continue; } if (ls[i].inherited) { /* TODO: close on exit */ /* TODO: nonblocking */ /* TODO: deferred accept */ continue; } s = ngx_socket(ls[i].family, ls[i].type, ls[i].protocol, ls[i].flags); if (s == -1) { ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno, ngx_socket_n " %s failed", ls[i].addr_text.data); return NGX_ERROR; } #if (WIN32) /* * Winsock assignes a socket number divisible by 4 * so to find a connection we divide a socket number by 4. */ if (s % 4) { ngx_log_error(NGX_LOG_EMERG, ls->log, 0, ngx_socket_n " created socket %d", s); return NGX_ERROR; } #endif if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (const void *) &reuseaddr, sizeof(int)) == -1) { ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno, "setsockopt(SO_REUSEADDR) %s failed", ls[i].addr_text.data); return NGX_ERROR; } /* TODO: close on exit */ if (!(ngx_event_flags & NGX_USE_AIO_EVENT)) { if (ngx_nonblocking(s) == -1) { ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno, ngx_nonblocking_n " %s failed", ls[i].addr_text.data); return NGX_ERROR; } } #if 0 if (ls[i].nonblocking) { if (ngx_nonblocking(s) == -1) { ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno, ngx_nonblocking_n " %s failed", ls[i].addr_text.data); return NGX_ERROR; } } #endif if (bind(s, ls[i].sockaddr, ls[i].socklen) == -1) { err = ngx_socket_errno; ngx_log_error(NGX_LOG_EMERG, log, err, "bind() to %s failed", ls[i].addr_text.data); if (err != NGX_EADDRINUSE) return NGX_ERROR; if (ngx_close_socket(s) == -1) ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno, ngx_close_socket_n " %s failed", ls[i].addr_text.data); failed = 1; continue; } if (listen(s, ls[i].backlog) == -1) { ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno, "listen() to %s failed", ls[i].addr_text.data); return NGX_ERROR; } /* TODO: deferred accept */ ls[i].fd = s; } if (!failed) break; /* TODO: delay configurable */ ngx_log_error(NGX_LOG_NOTICE, log, 0, "try again to bind() after 500ms"); ngx_msleep(500); } if (failed) { ngx_log_error(NGX_LOG_EMERG, log, 0, "still can not bind()"); return NGX_ERROR; } return NGX_OK; } void ngx_close_listening_sockets(ngx_cycle_t *cycle) { ngx_int_t i; ngx_socket_t fd; ngx_listening_t *ls; if (ngx_event_flags & NGX_USE_IOCP_EVENT) { return; } ls = cycle->listening.elts; for (i = 0; i < cycle->listening.nelts; i++) { fd = ls[i].fd; #if (WIN32) /* * Winsock assignes a socket number divisible by 4 * so to find a connection we divide a socket number by 4. */ fd /= 4; #endif ngx_del_event(&cycle->read_events[fd], NGX_READ_EVENT, NGX_CLOSE_EVENT); if (ngx_close_socket(ls[i].fd) == -1) { ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_socket_errno, ngx_close_socket_n " %s failed", ls[i].addr_text.data); } cycle->connections[fd].fd = -1; } } ngx_int_t ngx_connection_error(ngx_connection_t *c, ngx_err_t err, char *text) { ngx_uint_t level; if (err == NGX_ECONNRESET && c->log_error == NGX_ERROR_IGNORE_ECONNRESET) { return 0; } if (err == NGX_ECONNRESET #if !(WIN32) || err == NGX_EPIPE #endif || err == NGX_ENOTCONN) { switch (c->log_error) { case NGX_ERROR_IGNORE_ECONNRESET: case NGX_ERROR_INFO: level = NGX_LOG_INFO; break; case NGX_ERROR_ERR: level = NGX_LOG_ERR; break; default: level = NGX_LOG_CRIT; } } else { level = NGX_LOG_CRIT; } ngx_log_error(level, c->log, err, text); return NGX_ERROR; }