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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) 1995-2016 by The BRLTTY Developers.
*
* BRLTTY comes with ABSOLUTELY NO WARRANTY.
*
* This is free software, placed under the terms of the
* GNU General Public License, as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any
* later version. Please see the file LICENSE-GPL for details.
*
* Web Page: http://brltty.com/
*
* This software is maintained by Dave Mielke <dave@mielke.cc>.
*/
#ifndef BRLTTY_INCLUDED_ACTIVITY
#define BRLTTY_INCLUDED_ACTIVITY
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
typedef int ActivityPrepareMethod (void *data);
typedef int ActivityStartMethod (void *data);
typedef void ActivityStopMethod (void *data);
typedef struct {
const char *activityName;
int retryInterval;
int startTimeout;
int stopTimeout;
ActivityPrepareMethod *prepare;
ActivityStartMethod *start;
ActivityStopMethod *stop;
} ActivityMethods;
typedef struct ActivityObjectStruct ActivityObject;
extern ActivityObject *newActivity (const ActivityMethods *methods, void *data);
extern void destroyActivity (ActivityObject *activity);
extern void startActivity (ActivityObject *activity);
extern void stopActivity (ActivityObject *activity);
extern int isActivityStarted (const ActivityObject *activity);
extern int isActivityStopped (const ActivityObject *activity);
extern int awaitActivityStarted (ActivityObject *activity);
extern int awaitActivityStopped (ActivityObject *activity);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* BRLTTY_INCLUDED_ACTIVITY */
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