131 lines
3.4 KiB
C
131 lines
3.4 KiB
C
/**
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* @file receiver.c
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*
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* @brief Implementation of receiver_t.
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*
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*/
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/*
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* Copyright (C) 2005 Jan Hutter, Martin Willi
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include <stdlib.h>
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#include <pthread.h>
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#include "receiver.h"
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#include <daemon.h>
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#include <network/socket.h>
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#include <network/packet.h>
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#include <queues/job_queue.h>
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#include <queues/jobs/job.h>
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#include <queues/jobs/incoming_packet_job.h>
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#include <utils/allocator.h>
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#include <utils/logger_manager.h>
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typedef struct private_receiver_t private_receiver_t;
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/**
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* Private data of a receiver object
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*/
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struct private_receiver_t {
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/**
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* Public part of a receiver object
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*/
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receiver_t public;
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/**
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* @brief Thread function started at creation of the receiver object.
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*
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* @param this assigned receiver object
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*/
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void (*receive_packets) (private_receiver_t *this);
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/**
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* Assigned thread to the receiver_t object
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*/
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pthread_t assigned_thread;
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/**
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* logger for the receiver
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*/
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logger_t *logger;
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};
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/**
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* implements private_receiver_t.receive_packets
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*/
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static void receive_packets(private_receiver_t * this)
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{
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packet_t * current_packet;
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job_t *current_job;
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/* cancellation disabled by default */
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pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
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this->logger->log(this->logger, CONTROL, "receiver thread running, thread_id %u", (int)pthread_self());
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while (1)
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{
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while (charon->socket->receive(charon->socket,¤t_packet) == SUCCESS)
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{
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this->logger->log(this->logger, CONTROL, "creating job from packet");
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current_job = (job_t *) incoming_packet_job_create(current_packet);
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charon->job_queue->add(charon->job_queue,current_job);
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}
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/* bad bad, rebuild the socket ? */
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this->logger->log(this->logger, ERROR, "receiving from socket failed!");
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}
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}
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/**
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* Implementation of receiver_t's destroy function
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*/
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static void destroy(private_receiver_t *this)
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{
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this->logger->log(this->logger, CONTROL | MORE, "Going to terminate receiver thread");
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pthread_cancel(this->assigned_thread);
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pthread_join(this->assigned_thread, NULL);
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this->logger->log(this->logger, CONTROL | MORE, "Receiver thread terminated");
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charon->logger_manager->destroy_logger(charon->logger_manager, this->logger);
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allocator_free(this);
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}
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/*
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* see header
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*/
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receiver_t * receiver_create()
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{
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private_receiver_t *this = allocator_alloc_thing(private_receiver_t);
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this->public.destroy = (void(*)(receiver_t*)) destroy;
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this->receive_packets = receive_packets;
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this->logger = charon->logger_manager->create_logger(charon->logger_manager, RECEIVER, NULL);
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if (pthread_create(&(this->assigned_thread), NULL, (void*(*)(void*))this->receive_packets, this) != 0)
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{
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this->logger->log(this->logger, ERROR, "Receiver thread could not be started");
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charon->logger_manager->destroy_logger(charon->logger_manager, this->logger);
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allocator_free(this);
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return NULL;
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}
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return &(this->public);
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}
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