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/**
* @file sender.c
*
* @brief Implementation of sender_t.
*
*/
/*
* 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 <unistd.h>
#include "sender.h"
#include <daemon.h>
#include <network/socket.h>
#include <network/packet.h>
#include <queues/send_queue.h>
#include <utils/allocator.h>
#include <utils/logger_manager.h>
typedef struct private_sender_t private_sender_t;
/**
* Private data of a sender object
*/
struct private_sender_t {
/**
* Public part of a sender object
*/
sender_t public;
/**
* Assigned thread to the sender_t object
*/
pthread_t assigned_thread;
/**
* @brief The threads function, sends out packets.
*
* @param this assigned sender object
*/
void (*send_packets) (private_sender_t * this);
/**
* logger for this sender
*/
logger_t *logger;
};
/**
* implements private_sender_t.send_packets
*/
static void send_packets(private_sender_t * this)
{
packet_t * current_packet;
status_t status;
/* cancellation disabled by default */
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
this->logger->log(this->logger, CONTROL, "sender thread running, pid %d", getpid());
while (1)
{
current_packet = charon->send_queue->get(charon->send_queue);
this->logger->log(this->logger, CONTROL|MORE, "got a packet, sending it");
status = charon->socket->send(charon->socket,current_packet);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "sending failed, socket returned %s",
mapping_find(status_m, status));
}
current_packet->destroy(current_packet);
}
}
/**
* implements sender_t.destroy
*/
static void destroy(private_sender_t *this)
{
this->logger->log(this->logger, CONTROL | MORE, "Going to terminate sender thread");
pthread_cancel(this->assigned_thread);
pthread_join(this->assigned_thread, NULL);
this->logger->log(this->logger, CONTROL | MORE, "Sender thread terminated");
charon->logger_manager->destroy_logger(charon->logger_manager, this->logger);
allocator_free(this);
}
/*
* see header
*/
sender_t * sender_create()
{
private_sender_t *this = allocator_alloc_thing(private_sender_t);
this->send_packets = send_packets;
this->public.destroy = (void(*)(sender_t*)) destroy;
this->logger = charon->logger_manager->create_logger(charon->logger_manager, SENDER, NULL);
if (pthread_create(&(this->assigned_thread), NULL, (void*(*)(void*))this->send_packets, this) != 0)
{
this->logger->log(this->logger, ERROR, "Sender thread could not be created");
allocator_free(this);
return NULL;
}
return &(this->public);
}
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