Mercurial > hg > nginx-quic
view src/event/ngx_event_connect.c @ 86:3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 12 May 2003 15:52:24 +0000 |
parents | |
children | cd54bcbaf3b5 |
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#include <ngx_event_connect.h> int ngx_event_connect_peer(ngx_connect_peer_t *cp) { if (cp->peers->number > 1) { /* it's a first try - get current peer */ if (cp->tries == cp->peers->number) { /* Here is the race condition when the peers are shared between the threads or the processes but it should not be serious */ cp->cur_peer = cp->peers->current++; if (cp->peers->current >= cp->peers->number) { cp->peers->current = 0; } /* */ #if (NGX_MULTITHREADED || NGX_MULTIPROCESSED) /* eliminate the sequences of the race condition */ if (cp->cur_peer >= cp->peers->number) { cp->cur_peer = 0; } #endif } if (cp->peers->max_fails > 0) { for ( ;; ) { peer = &cp->peers->peers[cp->cur_peer]; /* Here is the race condition when the peers are shared between the threads or the processes but it should not be serious */ if (peer->fails <= cp->peers->max_fails || (now - peer->accessed > cp->peers->fail_timeout)) { break; } /* */ cp->cur_peer++; if (cp->cur_peer >= cp->peers->number) { cp->cur_peer = 0; } cp->tries--; if (cp->tries == 0) { return NGX_ERROR; } } } } s = ngx_socket(AF_INET, SOCK_STREAM, IPPROTO_IP, 0); if (s == -1) { ngx_log_error(NGX_LOG_ALERT, cn->log, ngx_socket_errno, ngx_socket_n " failed"); return NGX_HTTP_INTERNAL_SERVER_ERROR; } if (cn->rcvbuf) { if (setsockopt(s, SOL_SOCKET, SO_RCVBUF, (const void *) &cn->rcvbuf, sizeof(int)) == -1) { ngx_log_error(NGX_LOG_ALERT, cn->log, ngx_socket_errno, "setsockopt(SO_RCVBUF) failed"); if (ngx_close_socket(s) == -1) { ngx_log_error(NGX_LOG_ALERT, cn->log, ngx_socket_errno, ngx_close_socket_n " failed"); } return NGX_HTTP_INTERNAL_SERVER_ERROR; } } if (ngx_nonblocking(s) == -1) { ngx_log_error(NGX_LOG_ALERT, cn->log, ngx_socket_errno, ngx_nonblocking_n " failed"); if (ngx_close_socket(s) == -1) { ngx_log_error(NGX_LOG_ALERT, cn->log, ngx_socket_errno, ngx_close_socket_n " failed"); } return NGX_HTTP_INTERNAL_SERVER_ERROR; } c = &ngx_connections[s]; rev = &ngx_read_events[s]; wev = &ngx_write_events[s]; instance = rev->instance; ngx_memzero(c, sizeof(ngx_connection_t)); ngx_memzero(rev, sizeof(ngx_event_t)); ngx_memzero(wev, sizeof(ngx_event_t)); rev->index = wev->index = NGX_INVALID_INDEX; rev->data = wev->data = c; c->read = rev; c->write = wev; rev->instance = wev->instance = !instance; rev->log = wev->log = c->log = cn->log; c->fd = s; wev->close_handler = rev->close_handler = ngx_event_close_connection;