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/*
* Copyright (c) 2014 Intel, Inc. All rights reserved.
* Copyright (c) 2015 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2020 Amazon.com, Inc. or its affiliates.
* All Rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#ifndef OPAL_PROGRESS_THREADS_H
#define OPAL_PROGRESS_THREADS_H
#include "opal_config.h"
#include "opal/util/event.h"
/**
* Initialize a progress thread name; if a progress thread is not
* already associated with that name, start a progress thread.
*
* If you have general events that need to run in *a* progress thread
* (but not necessarily a your own, dedicated progress thread), pass
* NULL the "name" argument to the opal_progress_thead_init() function
* to glom on to the general OPAL-wide progress thread.
*
* If a name is passed that was already used in a prior call to
* opal_progress_thread_init(), the event base associated with that
* already-running progress thread will be returned (i.e., no new
* progress thread will be started).
*/
OPAL_DECLSPEC opal_event_base_t *opal_progress_thread_init(const char *name);
/**
* Finalize a progress thread name (reference counted).
*
* Once this function is invoked as many times as
* opal_progress_thread_init() was invoked on this name (or NULL), the
* progress function is shut down and the event base associated with
* it is destroyed.
*
* Will return OPAL_ERR_NOT_FOUND if the progress thread name does not
* exist; OPAL_SUCCESS otherwise.
*/
OPAL_DECLSPEC int opal_progress_thread_finalize(const char *name);
/**
* Temporarily pause the progress thread associated with this name.
*
* This function does not destroy the event base associated with this
* progress thread name, but it does stop processing all events on
* that event base until opal_progress_thread_resume() is invoked on
* that name.
*
* Will return OPAL_ERR_NOT_FOUND if the progress thread name does not
* exist; OPAL_SUCCESS otherwise.
*/
OPAL_DECLSPEC int opal_progress_thread_pause(const char *name);
/**
* Restart a previously-paused progress thread associated with this
* name.
*
* Will return OPAL_ERR_NOT_FOUND if the progress thread name does not
* exist; OPAL_SUCCESS otherwise.
*/
OPAL_DECLSPEC int opal_progress_thread_resume(const char *name);
#endif
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