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/*
* BRLTTY - A background process providing access to the console screen (when in
* text mode) for a blind person using a refreshable braille display.
*
* Copyright (C) 1995-2024 by The BRLTTY Developers.
*
* BRLTTY comes with ABSOLUTELY NO WARRANTY.
*
* This is free software, placed under the terms of the
* GNU Lesser General Public License, as published by the Free Software
* Foundation; either version 2.1 of the License, or (at your option) any
* later version. Please see the file LICENSE-LGPL for details.
*
* Web Page: http://brltty.app/
*
* This software is maintained by Dave Mielke <dave@mielke.cc>.
*/
#ifndef BRLTTY_INCLUDED_ASYNC_INTERNAL
#define BRLTTY_INCLUDED_ASYNC_INTERNAL
#include "async_handle.h"
#include "queue.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
typedef struct AsyncWaitDataStruct AsyncWaitData;
extern void asyncDeallocateWaitData (AsyncWaitData *waitData);
typedef struct AsyncAlarmDataStruct AsyncAlarmData;
extern void asyncDeallocateAlarmData (AsyncAlarmData *alarmData);
extern int asyncExecuteAlarmCallback (AsyncAlarmData *ad, long int *timeout);
typedef struct AsyncTaskDataStruct AsyncTaskData;
extern void asyncDeallocateTaskData (AsyncTaskData *taskData);
extern int asyncExecuteTaskCallback (AsyncTaskData *td);
typedef struct AsyncIoDataStruct AsyncIoData;
extern void asyncDeallocateIoData (AsyncIoData *ioData);
extern int asyncExecuteIoCallback (AsyncIoData *iod, long int timeout);
typedef struct AsyncSignalDataStruct AsyncSignalData;
extern void asyncDeallocateSignalData (AsyncSignalData *sd);
typedef struct {
AsyncWaitData *waitData;
AsyncAlarmData *alarmData;
AsyncTaskData *taskData;
AsyncIoData *ioData;
AsyncSignalData *signalData;
} AsyncThreadSpecificData;
extern AsyncThreadSpecificData *asyncGetThreadSpecificData (void);
extern int asyncMakeHandle (
AsyncHandle *handle,
Element *(*newElement) (const void *parameters),
const void *parameters
);
extern int asyncMakeElementHandle (AsyncHandle *handle, Element *element);
#define ASYNC_ANY_QUEUE ((const Queue *)1)
extern Element *asyncGetHandleElement (AsyncHandle handle, const Queue *queue);
typedef struct {
void (*cancelRequest) (Element *element);
} AsyncQueueMethods;
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* BRLTTY_INCLUDED_ASYNC_INTERNAL */
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