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#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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