diff options
Diffstat (limited to 'rubbos/app/httpd-2.0.64/server/connection.c')
| -rw-r--r-- | rubbos/app/httpd-2.0.64/server/connection.c | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/rubbos/app/httpd-2.0.64/server/connection.c b/rubbos/app/httpd-2.0.64/server/connection.c deleted file mode 100644 index 52b8908f..00000000 --- a/rubbos/app/httpd-2.0.64/server/connection.c +++ /dev/null @@ -1,179 +0,0 @@ -/* Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You under the Apache License, Version 2.0 - * (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include "apr.h" -#include "apr_strings.h" - -#define CORE_PRIVATE -#include "ap_config.h" -#include "httpd.h" -#include "http_connection.h" -#include "http_request.h" -#include "http_protocol.h" -#include "ap_mpm.h" -#include "mpm_default.h" -#include "http_config.h" -#include "http_core.h" -#include "http_vhost.h" -#include "scoreboard.h" -#include "http_log.h" -#include "util_filter.h" - -APR_HOOK_STRUCT( - APR_HOOK_LINK(create_connection) - APR_HOOK_LINK(process_connection) - APR_HOOK_LINK(pre_connection) -) -AP_IMPLEMENT_HOOK_RUN_FIRST(conn_rec *,create_connection, - (apr_pool_t *p, server_rec *server, apr_socket_t *csd, long conn_id, void *sbh, apr_bucket_alloc_t *alloc), - (p, server, csd, conn_id, sbh, alloc), NULL) -AP_IMPLEMENT_HOOK_RUN_FIRST(int,process_connection,(conn_rec *c),(c),DECLINED) -AP_IMPLEMENT_HOOK_RUN_ALL(int,pre_connection,(conn_rec *c, void *csd),(c, csd),OK,DECLINED) -/* - * More machine-dependent networking gooo... on some systems, - * you've got to be *really* sure that all the packets are acknowledged - * before closing the connection, since the client will not be able - * to see the last response if their TCP buffer is flushed by a RST - * packet from us, which is what the server's TCP stack will send - * if it receives any request data after closing the connection. - * - * In an ideal world, this function would be accomplished by simply - * setting the socket option SO_LINGER and handling it within the - * server's TCP stack while the process continues on to the next request. - * Unfortunately, it seems that most (if not all) operating systems - * block the server process on close() when SO_LINGER is used. - * For those that don't, see USE_SO_LINGER below. For the rest, - * we have created a home-brew lingering_close. - * - * Many operating systems tend to block, puke, or otherwise mishandle - * calls to shutdown only half of the connection. You should define - * NO_LINGCLOSE in ap_config.h if such is the case for your system. - */ -#ifndef MAX_SECS_TO_LINGER -#define MAX_SECS_TO_LINGER 30 -#endif - -AP_CORE_DECLARE(void) ap_flush_conn(conn_rec *c) -{ - apr_bucket_brigade *bb; - apr_bucket *b; - - bb = apr_brigade_create(c->pool, c->bucket_alloc); - - /* FLUSH bucket */ - b = apr_bucket_flush_create(c->bucket_alloc); - APR_BRIGADE_INSERT_TAIL(bb, b); - - /* End Of Connection bucket */ - b = ap_bucket_eoc_create(c->bucket_alloc); - APR_BRIGADE_INSERT_TAIL(bb, b); - - ap_pass_brigade(c->output_filters, bb); -} - -/* we now proceed to read from the client until we get EOF, or until - * MAX_SECS_TO_LINGER has passed. the reasons for doing this are - * documented in a draft: - * - * http://www.ics.uci.edu/pub/ietf/http/draft-ietf-http-connection-00.txt - * - * in a nutshell -- if we don't make this effort we risk causing - * TCP RST packets to be sent which can tear down a connection before - * all the response data has been sent to the client. - */ -#define SECONDS_TO_LINGER 2 -AP_DECLARE(void) ap_lingering_close(conn_rec *c) -{ - char dummybuf[512]; - apr_size_t nbytes = sizeof(dummybuf); - apr_status_t rc; - apr_int32_t timeout; - apr_int32_t total_linger_time = 0; - apr_socket_t *csd = ap_get_module_config(c->conn_config, &core_module); - - if (!csd) { - return; - } - - ap_update_child_status(c->sbh, SERVER_CLOSING, NULL); - -#ifdef NO_LINGCLOSE - ap_flush_conn(c); /* just close it */ - apr_socket_close(csd); - return; -#endif - - /* Close the connection, being careful to send out whatever is still - * in our buffers. If possible, try to avoid a hard close until the - * client has ACKed our FIN and/or has stopped sending us data. - */ - - /* Send any leftover data to the client, but never try to again */ - ap_flush_conn(c); - - if (c->aborted) { - apr_socket_close(csd); - return; - } - - /* Shut down the socket for write, which will send a FIN - * to the peer. - */ - if (apr_shutdown(csd, APR_SHUTDOWN_WRITE) != APR_SUCCESS - || c->aborted) { - apr_socket_close(csd); - return; - } - - /* Read all data from the peer until we reach "end-of-file" (FIN - * from peer) or we've exceeded our overall timeout. If the client does - * not send us bytes within 2 seconds (a value pulled from Apache 1.3 - * which seems to work well), close the connection. - */ - timeout = apr_time_from_sec(SECONDS_TO_LINGER); - apr_socket_timeout_set(csd, timeout); - apr_socket_opt_set(csd, APR_INCOMPLETE_READ, 1); - while (1) { - nbytes = sizeof(dummybuf); - rc = apr_recv(csd, dummybuf, &nbytes); - if (rc != APR_SUCCESS || nbytes == 0) - break; - - total_linger_time += SECONDS_TO_LINGER; - if (total_linger_time >= MAX_SECS_TO_LINGER) { - break; - } - } - - apr_socket_close(csd); - return; -} - -AP_CORE_DECLARE(void) ap_process_connection(conn_rec *c, void *csd) -{ - int rc; - ap_update_vhost_given_ip(c); - - rc = ap_run_pre_connection(c, csd); - if (rc != OK && rc != DONE) { - c->aborted = 1; - } - - if (!c->aborted) { - ap_run_process_connection(c); - } -} - |