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/**************************************************************
*
* 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
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*************************************************************/
#ifndef _OSL_CONDITION_H_
#define _OSL_CONDITION_H_
#include <osl/time.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef void* oslCondition;
typedef enum {
osl_cond_result_ok, /* successful completion */
osl_cond_result_error, /* error occured, 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.
*/
oslCondition SAL_CALL osl_createCondition(void);
/** Free the memory used by the condition.
@param Condition the condition handle.
*/
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_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_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.
*/
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_Bool SAL_CALL osl_checkCondition(oslCondition Condition);
#ifdef __cplusplus
}
#endif
#endif /* _OSL_CONDITION_H_ */
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