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/*
*
* Copyright 2015, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef GRPC_CORE_LIB_IOMGR_WORKQUEUE_POSIX_H
#define GRPC_CORE_LIB_IOMGR_WORKQUEUE_POSIX_H
#include "src/core/lib/iomgr/wakeup_fd_posix.h"
#include "src/core/lib/support/mpscq.h"
struct grpc_fd;
struct grpc_workqueue {
gpr_refcount refs;
gpr_mpscq queue;
// state is:
// lower bit - zero if orphaned
// other bits - number of items enqueued
gpr_atm state;
grpc_wakeup_fd wakeup_fd;
struct grpc_fd *wakeup_read_fd;
grpc_closure read_closure;
};
/** Create a work queue. Returns an error if creation fails. If creation
succeeds, sets *workqueue to point to it. */
grpc_error *grpc_workqueue_create(grpc_exec_ctx *exec_ctx,
grpc_workqueue **workqueue);
#endif /* GRPC_CORE_LIB_IOMGR_WORKQUEUE_POSIX_H */
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