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/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 2011-2017. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* %CopyrightEnd%
*/
#ifndef ERL_ASYNC_H__
#define ERL_ASYNC_H__
#define ERTS_MAX_NO_OF_ASYNC_THREADS 1024
extern int erts_async_max_threads;
#define ERTS_ASYNC_THREAD_MIN_STACK_SIZE 16 /* Kilo words */
#define ERTS_ASYNC_THREAD_MAX_STACK_SIZE 8192 /* Kilo words */
extern int erts_async_thread_suggested_stack_size;
#ifdef ERTS_SMP
/*
* With smp support we can choose to have, or not to
* have an async ready queue.
*/
#define ERTS_USE_ASYNC_READY_Q 1
#endif
#ifndef ERTS_SMP
/* In non-smp case we *need* the async ready queue */
# undef ERTS_USE_ASYNC_READY_Q
# define ERTS_USE_ASYNC_READY_Q 1
#endif
#ifndef ERTS_USE_ASYNC_READY_Q
# define ERTS_USE_ASYNC_READY_Q 0
#endif
#ifndef USE_THREADS
# undef ERTS_USE_ASYNC_READY_Q
# define ERTS_USE_ASYNC_READY_Q 0
#endif /* !USE_THREADS */
#if ERTS_USE_ASYNC_READY_Q
int erts_check_async_ready(void *);
int erts_async_ready_clean(void *, void *);
void *erts_get_async_ready_queue(Uint sched_id);
#define ERTS_ASYNC_READY_CLEAN 0
#define ERTS_ASYNC_READY_DIRTY 1
#ifdef ERTS_SMP
#define ERTS_ASYNC_READY_NEED_THR_PRGR 2
#endif
#endif /* ERTS_USE_ASYNC_READY_Q */
void erts_init_async(void);
void erts_exit_flush_async(void);
#endif /* ERL_ASYNC_H__ */
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