1 files changed, 87 insertions, 0 deletions
diff --git a/src/charon/threads/thread_pool.h b/src/charon/threads/thread_pool.h
new file mode 100644
index 000000000..8e1989bda
--- /dev/null
+++ b/src/charon/threads/thread_pool.h
@@ -0,0 +1,87 @@
+/**
+ * @file thread_pool.h
+ * 
+ * @brief Interface of thread_pool_t.
+ * 
+ */
+
+/*
+ * Copyright (C) 2005-2006 Martin Willi
+ * Copyright (C) 2005 Jan Hutter
+ * 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 THREAD_POOL_H_
+#define THREAD_POOL_H_
+
+typedef struct thread_pool_t thread_pool_t;
+
+#include <stdlib.h>
+
+#include <library.h>
+
+/**
+ * @brief A thread_pool consists of a pool of threads processing jobs from the job queue.
+ *
+ * Current implementation uses as many threads as specified in constructor.
+ * A more improved version would dynamically increase thread count if necessary.
+ *
+ * @b Constructors:
+ *  - thread_pool_create()
+ *
+ * @todo Add support for dynamic thread handling
+ * 
+ * @ingroup threads
+ */
+struct thread_pool_t {
+	
+	/**
+	 * @brief Return currently instanciated thread count.
+	 *
+	 * @param thread_pool	calling object		
+	 * @return				size of thread pool
+	 */
+	u_int (*get_pool_size) (thread_pool_t *thread_pool);
+	
+	/**
+	 * @brief Get the number of threads currently waiting for work.
+	 *
+	 * @param thread_pool	calling object		
+	 * @return				number of idle threads
+	 */
+	u_int (*get_idle_threads) (thread_pool_t *thread_pool);
+	
+	/**
+	 * @brief Destroy a thread_pool_t object.
+	 * 
+	 * Sends cancellation request to all threads and AWAITS their termination.
+	 * 
+	 * @param thread_pool	calling object
+	 */
+	void (*destroy) (thread_pool_t *thread_pool);
+};
+
+/**
+ * @brief Create the thread pool using using pool_size of threads.
+ * 
+ * @param pool_size			desired pool size
+ * @return
+ *							- thread_pool_t object if one ore more threads could be started, or
+ *							- NULL if no threads could be created
+ *
+ * @ingroup threads
+ */
+thread_pool_t *thread_pool_create(size_t pool_size);
+
+
+#endif /*THREAD_POOL_H_*/