/*

 * Copyright (C) Internet Systems Consortium, Inc. ("ISC")

 *

 * SPDX-License-Identifier: MPL-2.0

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, you can obtain one at https://mozilla.org/MPL/2.0/.

 *

 * See the COPYRIGHT file distributed with this work for additional

 * information regarding copyright ownership.

 */

#include <stdlib.h>

#include <sys/types.h>

#include <unistd.h>

#include <isc/atomic.h>

#include <isc/barrier.h>

#include <isc/helper.h>

#include <isc/job.h>

#include <isc/loop.h>

#include <isc/magic.h>

#include <isc/mem.h>

#include <isc/mutex.h>

#include <isc/refcount.h>

#include <isc/result.h>

#include <isc/signal.h>

#include <isc/strerr.h>

#include <isc/thread.h>

#include <isc/util.h>

#include <isc/uv.h>

#include <isc/work.h>

#include "async_p.h"

#include "job_p.h"

#include "loop_p.h"

void

isc_helper_run(isc_loop_t *loop, isc_job_cb cb, void *cbarg) {

  REQUIRE(VALID_LOOP(loop));

  REQUIRE(cb != NULL);

  isc_loop_t *helper = isc_loop_helper(loop);

  isc_job_t *job = isc_mem_get(helper->mctx, sizeof(*job));

  *job = (isc_job_t){

    .cb = cb,

    .cbarg = cbarg,

  };

  cds_wfcq_node_init(&job->wfcq_node);

  /*

   * cds_wfcq_enqueue() is non-blocking and enqueues the job to async

   * queue.

   *

   * The function returns 'false' in case the queue was empty - in such

   * case we need to trigger the async callback.

   */

  if (!cds_wfcq_enqueue(&helper->async_jobs.head,

            &helper->async_jobs.tail, &job->wfcq_node))

  {

    int r = uv_async_send(&helper->async_trigger);

    UV_RUNTIME_CHECK(uv_async_send, r);

  }

}