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/* Copyright 1999-2005 The Apache Software Foundation or its licensors, as * applicable. * * Licensed 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. */ /** * @file ap_listen.h * @brief Apache Listeners Library * * @defgroup APACHE_CORE_LISTEN Apache Listeners Library * @ingroup APACHE_CORE * @{ */ #ifndef AP_LISTEN_H #define AP_LISTEN_H #include "apr_network_io.h" #include "httpd.h" #include "http_config.h" typedef struct ap_listen_rec ap_listen_rec; typedef apr_status_t (*accept_function)(void **csd, ap_listen_rec *lr, apr_pool_t *ptrans); /** * @brief Apache's listeners record. * * These are used in the Multi-Processing Modules * to setup all of the sockets for the MPM to listen to and accept on. */ struct ap_listen_rec { /** * The next listener in the list */ ap_listen_rec *next; /** * The actual socket */ apr_socket_t *sd; /** * The sockaddr the socket should bind to */ apr_sockaddr_t *bind_addr; /** * The accept function for this socket */ accept_function accept_func; /** * Is this socket currently active */ int active; /** * The default protocol for this listening socket. */ const char* protocol; }; /** * The global list of ap_listen_rec structures */ AP_DECLARE_DATA extern ap_listen_rec *ap_listeners; /** * Setup all of the defaults for the listener list */ AP_DECLARE(void) ap_listen_pre_config(void); /** * Loop through the global ap_listen_rec list and create all of the required * sockets. This executes the listen and bind on the sockets. * @param s The global server_rec * @return The number of open sockets. */ AP_DECLARE(int) ap_setup_listeners(server_rec *s); /** * Loop through the global ap_listen_rec list and close each of the sockets. */ AP_DECLARE_NONSTD(void) ap_close_listeners(void); /* Although these functions are exported from libmain, they are not really * public functions. These functions are actually called while parsing the * config file, when one of the LISTEN_COMMANDS directives is read. These * should not ever be called by external modules. ALL MPMs should include * LISTEN_COMMANDS in their command_rec table so that these functions are * called. */ AP_DECLARE_NONSTD(const char *) ap_set_listenbacklog(cmd_parms *cmd, void *dummy, const char *arg); AP_DECLARE_NONSTD(const char *) ap_set_listener(cmd_parms *cmd, void *dummy, int argc, char *const argv[]); AP_DECLARE_NONSTD(const char *) ap_set_send_buffer_size(cmd_parms *cmd, void *dummy, const char *arg); AP_DECLARE_NONSTD(const char *) ap_set_receive_buffer_size(cmd_parms *cmd, void *dummy, const char *arg); #define LISTEN_COMMANDS \ AP_INIT_TAKE1("ListenBacklog", ap_set_listenbacklog, NULL, RSRC_CONF, \ "Maximum length of the queue of pending connections, as used by listen(2)"), \ AP_INIT_TAKE_ARGV("Listen", ap_set_listener, NULL, RSRC_CONF, \ "A port number or a numeric IP address and a port number, and an optional protocol"), \ AP_INIT_TAKE1("SendBufferSize", ap_set_send_buffer_size, NULL, RSRC_CONF, \ "Send buffer size in bytes"), \ AP_INIT_TAKE1("ReceiveBufferSize", ap_set_receive_buffer_size, NULL, \ RSRC_CONF, "Receive buffer size in bytes") #endif /** @} */