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/*
* Copyright (C) 2010-2011 Mamadou Diop.
*
* Contact: Mamadou Diop <diopmamadou(at)doubango[dot]org>
*
* This file is part of Open Source Doubango Framework.
*
* DOUBANGO is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* DOUBANGO is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with DOUBANGO.
*
*/
/**@file tsk_runnable.h
* @brief Base class for runnable object.
*
* @author Mamadou Diop <diopmamadou(at)doubango[dot]org>
*
*/
#ifndef _TINYSAK_RUNNABLE_H_
#define _TINYSAK_RUNNABLE_H_
#include "tinysak_config.h"
#include "tsk_object.h"
#include "tsk_semaphore.h"
#include "tsk_thread.h"
#include "tsk_list.h"
TSK_BEGIN_DECLS
/**@ingroup tsk_runnable_group
*/
typedef void* (TSK_STDCALL *tsk_runnable_func_run)(void* self);
/**@ingroup tsk_runnable_group
*/
#define TSK_RUNNABLE(self) ((tsk_runnable_t*)(self))
/**@ingroup tsk_runnable_group
* Runnable.
*/
typedef struct tsk_runnable_s
{
TSK_DECLARE_OBJECT;
const tsk_object_def_t *objdef;
tsk_thread_handle_t* h_thread[2/*0=default,1=delayed*/];
tsk_runnable_func_run run;
tsk_thread_id_t id_thread; // no way to get this value from "h_thread" on WINXP
tsk_semaphore_handle_t *semaphore;
tsk_bool_t running;
tsk_bool_t started;
tsk_bool_t initialized;
/** whether the enqueued data are important or not.
* if yes, the thread will not be joined until all data in the queue have been consumed.
* default value: tsk_false
*/
tsk_bool_t important;
int32_t priority;
tsk_list_t *objects;
}
tsk_runnable_t;
/**@ingroup tsk_runnable_group
*/
#define TSK_DECLARE_RUNNABLE tsk_runnable_t __runnable__
TINYSAK_API tsk_runnable_t* tsk_runnable_create();
TINYSAK_API tsk_runnable_t* tsk_runnable_create_2(int32_t priority);
TINYSAK_API int tsk_runnable_start(tsk_runnable_t *self, const tsk_object_def_t *objdef);
TINYSAK_API int tsk_runnable_set_important(tsk_runnable_t *self, tsk_bool_t important);
TINYSAK_API int tsk_runnable_set_priority(tsk_runnable_t *self, int32_t priority);
TINYSAK_API int tsk_runnable_enqueue(tsk_runnable_t *self, ...);
TINYSAK_API int tsk_runnable_stop(tsk_runnable_t *self);
TINYSAK_GEXTERN const tsk_object_def_t *tsk_runnable_def_t;
/**@ingroup tsk_runnable_group
* @def TSK_RUNNABLE_RUN_BEGIN
*/
/**@ingroup tsk_runnable_group
* @def TSK_RUNNABLE_RUN_END
*/
#define TSK_RUNNABLE_RUN_BEGIN(self) \
TSK_RUNNABLE(self)->running = tsk_true; \
TSK_RUNNABLE(self)->id_thread = tsk_thread_get_id(); \
for(;;) { \
tsk_semaphore_decrement(TSK_RUNNABLE(self)->semaphore); \
if(!TSK_RUNNABLE(self)->running && \
(!TSK_RUNNABLE(self)->important || (TSK_RUNNABLE(self)->important && TSK_LIST_IS_EMPTY(TSK_RUNNABLE(self)->objects)))) \
break;
#define TSK_RUNNABLE_RUN_END(self) \
} \
TSK_RUNNABLE(self)->running = tsk_false;
/**@ingroup tsk_runnable_group
* @def TSK_RUNNABLE_ENQUEUE
*/
/**@ingroup tsk_runnable_group
* @def TSK_RUNNABLE_ENQUEUE_OBJECT
*/
#define TSK_RUNNABLE_ENQUEUE(self, ...) \
{ \
if((self) && TSK_RUNNABLE(self)->initialized){ \
tsk_object_t *object = tsk_object_new(TSK_RUNNABLE(self)->objdef, ##__VA_ARGS__); \
tsk_list_push_back_data(TSK_RUNNABLE(self)->objects, (void**)&object); \
tsk_semaphore_increment(TSK_RUNNABLE(self)->semaphore); \
} \
else{ \
TSK_DEBUG_WARN("Invalid/uninitialized runnable object."); \
} \
}
#define TSK_RUNNABLE_ENQUEUE_OBJECT(self, object) \
{ \
if((self) && TSK_RUNNABLE(self)->initialized){ \
tsk_list_push_back_data(TSK_RUNNABLE(self)->objects, (void**)&object); \
tsk_semaphore_increment(TSK_RUNNABLE(self)->semaphore); \
} \
else{ \
TSK_DEBUG_WARN("Invalid/uninitialized runnable object."); \
TSK_OBJECT_SAFE_FREE(object); \
} \
}
#define TSK_RUNNABLE_ENQUEUE_OBJECT_SAFE(self, object) \
{ \
if((self) && TSK_RUNNABLE(self)->initialized){ \
tsk_list_lock(TSK_RUNNABLE(self)->objects); \
tsk_list_push_back_data(TSK_RUNNABLE(self)->objects, (void**)&object); \
tsk_list_unlock(TSK_RUNNABLE(self)->objects); \
tsk_semaphore_increment(TSK_RUNNABLE(self)->semaphore); \
} \
else{ \
TSK_DEBUG_WARN("Invalid/uninitialized runnable object."); \
TSK_OBJECT_SAFE_FREE(object); \
} \
}
/**@ingroup tsk_runnable_group
*/
#define TSK_RUNNABLE_POP_FIRST(self) \
tsk_list_pop_first_item(TSK_RUNNABLE(self)->objects)
static tsk_list_item_t* TSK_RUNNABLE_POP_FIRST_SAFE(tsk_runnable_t* self){
tsk_list_item_t* item;
tsk_list_lock(self->objects);
item= tsk_list_pop_first_item(self->objects);
tsk_list_unlock(self->objects);
return item;
}
TSK_END_DECLS
#endif /* _TINYSAK_RUNNABLE_H_ */
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