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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef _OSL_CONDITION_H_
#define _OSL_CONDITION_H_
#include "sal/config.h"
#include "osl/time.h"
#include "sal/saldllapi.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef void* oslCondition;
typedef enum {
osl_cond_result_ok, /* successful completion */
osl_cond_result_error, /* error occurred, check osl_getLastSocketError() for details */
osl_cond_result_timeout, /* blocking operation timed out */
osl_cond_result_FORCE_EQUAL_SIZE = SAL_MAX_ENUM
} oslConditionResult;
/** Creates a condition.
The condition is in the reset-state.
@returns 0 if condition could not be created.
*/
SAL_DLLPUBLIC oslCondition SAL_CALL osl_createCondition(void);
/** Free the memory used by the condition.
@param Condition the condition handle.
*/
SAL_DLLPUBLIC void SAL_CALL osl_destroyCondition(oslCondition Condition);
/** Sets condition to True => wait() will not block, check() returns True.
NOTE: ALL threads waiting on this condition are unblocked!
@param Condition handle to a created condition.
@return False if system-call failed.
*/
SAL_DLLPUBLIC sal_Bool SAL_CALL osl_setCondition(oslCondition Condition);
/** Sets condition to False => wait() will block, check() returns False
@param Condition handle to a created condition.
@return False if system-call failed.
*/
SAL_DLLPUBLIC sal_Bool SAL_CALL osl_resetCondition(oslCondition Condition);
/** Blocks if condition is not set<BR>
If condition has been destroyed prematurely, wait() will
return with False.
@param Condition handle to a created condition.
@param pTimeout Tiemout value or NULL for infinite waiting
@return False if system-call failed.
*/
SAL_DLLPUBLIC oslConditionResult SAL_CALL osl_waitCondition(oslCondition Condition, const TimeValue* pTimeout);
/** Queries the state of the condition without blocking.
@param Condition handle to a created condition.
@return True: condition is set. <BR>
False: condition is not set. <BR>
*/
SAL_DLLPUBLIC sal_Bool SAL_CALL osl_checkCondition(oslCondition Condition);
#ifdef __cplusplus
}
#endif
#endif /* _OSL_CONDITION_H_ */
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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