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//
// Copyright 2017 Garrett D'Amore <garrett@damore.org>
// Copyright 2017 Capitar IT Group BV <info@capitar.com>
//
// This software is supplied under the terms of the MIT License, a
// copy of which should be located in the distribution where this
// file was obtained (LICENSE.txt). A copy of the license may also be
// found online at https://opensource.org/licenses/MIT.
//
#ifndef CORE_TASKQ_H
#define CORE_TASKQ_H
#include "core/defs.h"
#include "core/list.h"
typedef struct nni_taskq nni_taskq;
typedef struct nni_task nni_task;
// nni_task is a structure representing a task. Its intended to inlined
// into structures so that taskq_dispatch can be a guaranteed operation.
struct nni_task {
nni_list_node task_node;
void * task_arg;
nni_cb task_cb;
nni_taskq * task_tq;
};
extern int nni_taskq_init(nni_taskq **, int);
extern void nni_taskq_fini(nni_taskq *);
// nni_task_dispatch sends the task to the queue. It is guaranteed to
// succeed. (If the queue is shutdown, then the behavior is undefined.)
extern void nni_task_dispatch(nni_task *);
// nni_task_cancel cancels the task. It will wait for the task to complete
// if it is already running.
extern int nni_task_cancel(nni_task *);
extern void nni_task_wait(nni_task *);
extern void nni_task_init(nni_taskq *, nni_task *, nni_cb, void *);
extern int nni_taskq_sys_init(void);
extern void nni_taskq_sys_fini(void);
#endif // CORE_TASKQ_H
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