- created package threads

Source/charon/threads/sender.c

@@ -0,0 +1,127 @@
+/**
+ * @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 "sender.h"
+
+#include <globals.h>
+#include <network/socket.h>
+#include <network/packet.h>
+#include <queues/send_queue.h>
+#include <utils/allocator.h>
+#include <utils/logger_manager.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;
+	 
+	 /**
+	  * logger for this sender
+	  */
+	 logger_t *logger;
+
+};
+
+/**
+ * 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)
+{
+	packet_t * current_packet;
+	status_t status;
+	
+	/* cancellation disabled by default */
+	pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
+
+	while (1)
+	{
+		while (global_send_queue->get(global_send_queue,&current_packet) == SUCCESS)
+		{
+			this->logger->log(this->logger, CONTROL|MORE, "got a packet, sending it");
+			status = global_socket->send(global_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);
+		}
+	}
+}
+
+/**
+ * Implementation of sender_t's destroy function
+ */
+static status_t 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");	
+	
+	global_logger_manager->destroy_logger(global_logger_manager, this->logger);
+
+	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;
+	
+	this->logger = global_logger_manager->create_logger(global_logger_manager, SENDER, NULL);
+	if (this->logger == NULL)
+	{
+		allocator_free(this);
+		return NULL;	
+	}
+	
+	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);
+}