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/*
* Copyright (C) 2009 Tobias Brunner
* 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.
*/
/**
* @defgroup thread_value thread_value
* @{ @ingroup threading
*/
#ifndef THREADING_THREAD_VALUE_H_
#define THREADING_THREAD_VALUE_H_
#include <threading/thread.h>
typedef struct thread_value_t thread_value_t;
/**
* Wrapper for thread-specific values.
*/
struct thread_value_t {
/**
* Set a thread-specific value.
*
* @param val thread specific value
*/
void (*set)(thread_value_t *this, void *val);
/**
* Get a thread-specific value.
*
* @return the value specific to the current thread
*/
void *(*get)(thread_value_t *this);
/**
* Destroys this thread specific value wrapper. There is no check for
* non-NULL values which are currently assigned to the calling thread, no
* destructor is called.
*/
void (*destroy)(thread_value_t *this);
};
/**
* Create a new thread-specific value wrapper.
*
* The optional destructor is called whenever a thread terminates, with the
* assigned value as argument. It is not called if that value is NULL.
*
* @param destructor destructor
* @return thread-specific value wrapper
*/
thread_value_t *thread_value_create(thread_cleanup_t destructor);
#endif /** THREADING_THREAD_VALUE_H_ @} */
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