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/*
============================================================================
Name : hev-task-cond.h
Author : Heiher <r@hev.cc>
Copyright : Copyright (c) 2019 everyone.
Description : Condition
============================================================================
*/
#ifndef __HEV_TASK_COND_H__
#define __HEV_TASK_COND_H__
#include "hev-task-mutex.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef struct _HevTaskCond HevTaskCond;
typedef struct _HevTaskCondNode HevTaskCondNode;
struct _HevTaskCond
{
HevTaskCondNode *waiters;
};
/**
* hev_task_cond_init:
* @self: a #HevTaskCond
*
* Initialize the task condition.
*
* Returns: When successful, returns zero. When an error occurs, returns -1.
*
* Since: 4.4
*/
int hev_task_cond_init (HevTaskCond *self);
/**
* hev_task_cond_wait:
* @self: a #HevTaskCond
* @mutex: a #HevTaskMutex
*
* Wait on the task condition.
*
* Returns: When successful, returns zero. When an error occurs, returns -1.
*
* Since: 4.4
*/
int hev_task_cond_wait (HevTaskCond *self, HevTaskMutex *mutex);
/**
* hev_task_cond_wait:
* @self: a #HevTaskCond
* @mutex: a #HevTaskMutex
* @milliseconds: wait time
*
* The timedwait function shall be equivalent to condition wait, except that an
* error is returned if the time specified by @milliseconds passes.
*
* Returns: When successful, returns zero. When an error occurs, returns -1.
*
* Since: 4.4
*/
int hev_task_cond_timedwait (HevTaskCond *self, HevTaskMutex *mutex,
unsigned int milliseconds);
/**
* hev_task_cond_signal:
* @self: a #HevTaskCond
*
* Wake one task that wait on condition.
*
* Returns: When successful, returns zero. When an error occurs, returns -1.
*
* Since: 4.4
*/
int hev_task_cond_signal (HevTaskCond *self);
/**
* hev_task_cond_broadcast:
* @self: a #HevTaskCond
*
* Wake all task that wait on condition.
*
* Returns: When successful, returns zero. When an error occurs, returns -1.
*
* Since: 4.4
*/
int hev_task_cond_broadcast (HevTaskCond *self);
#ifdef __cplusplus
}
#endif
#endif /* __HEV_TASK_MUTEX_H__ */