/*
 *
 * 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
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 */

#ifndef GRPC_INTERNAL_CORE_SURFACE_COMPLETION_QUEUE_H
#define GRPC_INTERNAL_CORE_SURFACE_COMPLETION_QUEUE_H

/* Internal API for completion channels */

#include "src/core/iomgr/pollset.h"
#include <grpc/grpc.h>

#ifdef GRPC_CQ_REF_COUNT_DEBUG
void grpc_cq_internal_ref(grpc_completion_queue *cc, const char *reason);
void grpc_cq_internal_unref(grpc_completion_queue *cc, const char *reason);
#define GRPC_CQ_INTERNAL_REF(cc, reason) grpc_cq_internal_ref(cc, reason)
#define GRPC_CQ_INTERNAL_UNREF(cc, reason) grpc_cq_internal_unref(cc, reason)
#else
void grpc_cq_internal_ref(grpc_completion_queue *cc);
void grpc_cq_internal_unref(grpc_completion_queue *cc);
#define GRPC_CQ_INTERNAL_REF(cc, reason) grpc_cq_internal_ref(cc)
#define GRPC_CQ_INTERNAL_UNREF(cc, reason) grpc_cq_internal_unref(cc)
#endif

/* Flag that an operation is beginning: the completion channel will not finish
   shutdown until a corrensponding grpc_cq_end_* call is made */
void grpc_cq_begin_op(grpc_completion_queue *cc, grpc_call *call);

/* Queue a GRPC_OP_COMPLETED operation */
void grpc_cq_end_op(grpc_completion_queue *cc, void *tag, grpc_call *call,
                    int success);

grpc_pollset *grpc_cq_pollset(grpc_completion_queue *cc);

void grpc_cq_hack_spin_pollset(grpc_completion_queue *cc);

void grpc_cq_mark_server_cq(grpc_completion_queue *cc);
int grpc_cq_is_server_cq(grpc_completion_queue *cc);

#endif /* GRPC_INTERNAL_CORE_SURFACE_COMPLETION_QUEUE_H */