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/**
* @file dispatcher.h
*
* @brief Interface of dispatcher_t.
*
*/
/*
* Copyright (C) 2007 Martin Willi
* Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#ifndef DISPATCHER_H_
#define DISPATCHER_H_
#include "controller.h"
typedef struct dispatcher_t dispatcher_t;
/**
* @brief Dispatcher, accepts connections using multiple threads.
*
* The dispatcher creates a session for each client (using SID cookies). In
* each session, a session context is created using the context constructor.
* Each controller is instanciated in the session using the controller
* constructor added with add_controller.
*/
struct dispatcher_t {
/**
* @brief Register a controller to the dispatcher.
*
* The first controller added serves as default controller. Client's
* get redirected to it if no other controller matches.
*
* @param constructor constructor function to the conntroller
* @param param param to pass to constructor
*/
void (*add_controller)(dispatcher_t *this,
controller_constructor_t constructor, void *param);
/**
* @brief Start with dispatching.
*
* It may be necessary to call per-thread initialization functions.
* If init is not NULL, the handler is called right after thread
* creation (by the created thread) and the deinit function is called
* before the thread gets destroyed (again by the thread itself).
*
* @param thread number of dispatching threads
* @param init thread specific initialization function, or NULL
* @param init_param param to pass to init function
* @param deinit thread dpecific deinitialization function, or NULL
* @param deinit_param param to pass to deinit function
*/
void (*run)(dispatcher_t *this, int threads,
void(*init)(void *param), void *init_param,
void(*deinit)(void *param), void *deinit_param);
/**
* @brief Wait for a relevant signal action.
*/
void (*waitsignal)(dispatcher_t *this);
/**
* @brief Destroy the dispatcher_t.
*/
void (*destroy) (dispatcher_t *this);
};
/**
* @brief Create a dispatcher.
*
* The context constructor is invoked to create a session context for
* each session.
*
* @param socket FastCGI socket path, NULL for dynamic
* @param timeout session timeout
* @param constructor construction function for session context
* @param param parameter to supply to context constructor
*/
dispatcher_t *dispatcher_create(char *socket, int timeout,
context_constructor_t constructor, void *param);
#endif /* DISPATCHER_H_ */
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