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/* GSL Engine - Flow module operation engine
* Copyright (C) 2001 Tim Janik
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GSL_ENGINE_SCHEDULE_H__
#define __GSL_ENGINE_SCHEDULE_H__
#include <gsl/gslopnode.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
typedef struct
{
EngineNode *last; /* resolve node */
GslRing *nodes; /* of type EngineNode* */
guint seen_deferred_node : 1;
} EngineCycle;
typedef struct
{
guint leaf_level;
GslRing *cycles; /* of type Cycle* */
GslRing *cycle_nodes; /* of type EngineNode* */
} EngineQuery;
struct _EngineSchedule
{
guint n_items;
guint leaf_levels;
GslRing **nodes; /* EngineNode* */
GslRing **cycles; /* GslRing* */
guint secured : 1;
guint in_pqueue : 1;
guint cur_leaf_level;
GslRing *cur_node;
GslRing *cur_cycle;
};
#define GSL_SCHEDULE_NONPOPABLE(schedule) ((schedule)->cur_leaf_level >= (schedule)->leaf_levels)
/* --- MasterThread --- */
EngineSchedule* _engine_schedule_new (void);
void _engine_schedule_clear (EngineSchedule *schedule);
void _engine_schedule_destroy (EngineSchedule *schedule);
void _engine_schedule_consumer_node (EngineSchedule *schedule,
EngineNode *node);
void _engine_schedule_node (EngineSchedule *schedule,
EngineNode *node,
guint leaf_level);
void _engine_schedule_cycle (EngineSchedule *schedule,
GslRing *cycle_nodes,
guint leaf_level);
void _engine_schedule_secure (EngineSchedule *schedule);
EngineNode* _engine_schedule_pop_node (EngineSchedule *schedule);
GslRing* _engine_schedule_pop_cycle (EngineSchedule *schedule);
void _engine_schedule_restart (EngineSchedule *schedule);
void _engine_schedule_unsecure (EngineSchedule *schedule);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GSL_ENGINE_SCHEDULE_H__ */
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