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/**
* @file sender.c
*
* @brief Implements the Sender Thread encapsulated in the sender_t-object
*
*/
/*
* Copyright (C) 2005 Jan Hutter, 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.
*/
#include <stdlib.h>
#include <pthread.h>
#include <freeswan.h>
#include <pluto/constants.h>
#include <pluto/defs.h>
#include "allocator.h"
#include "sender.h"
#include "socket.h"
#include "packet.h"
#include "send_queue.h"
#include "globals.h"
/**
* Private data of a sender object
*/
typedef struct private_sender_s private_sender_t;
struct private_sender_s {
/**
* Public part of a sender object
*/
sender_t public;
/**
* Assigned thread to the sender_t-object
*/
pthread_t assigned_thread;
};
/**
* Thread function started at creation of the sender object
*
* @param this assigned sender object
* @return SUCCESS if thread_function ended successfully, FAILED otherwise
*/
static void sender_thread_function(private_sender_t * this)
{
/* cancellation disabled by default */
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
packet_t * current_packet;
while (1)
{
while (global_send_queue->get(global_send_queue,¤t_packet) == SUCCESS)
{
if ( global_socket->send(global_socket,current_packet) == SUCCESS)
{
current_packet->destroy(current_packet);
}
else
{
/* Packet could not be sent */
/* TODO LOG it */
}
}
/* NOT GOOD !!!!!! */
/* TODO LOG it */
}
}
/**
* Implementation of sender_t's destroy function
*/
static status_t destroy(private_sender_t *this)
{
pthread_cancel(this->assigned_thread);
pthread_join(this->assigned_thread, NULL);
allocator_free(this);
return SUCCESS;
}
sender_t * sender_create()
{
private_sender_t *this = allocator_alloc_thing(private_sender_t);
this->public.destroy = (status_t(*)(sender_t*)) destroy;
if (pthread_create(&(this->assigned_thread), NULL, (void*(*)(void*))sender_thread_function, this) != 0)
{
/* thread could not be created */
allocator_free(this);
return NULL;
}
return &(this->public);
}
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