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/*
*
* Copyright 2015 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#ifndef GRPC_CORE_LIB_SURFACE_CHANNEL_H
#define GRPC_CORE_LIB_SURFACE_CHANNEL_H
#include "src/core/lib/channel/channel_stack.h"
#include "src/core/lib/channel/channel_stack_builder.h"
#include "src/core/lib/surface/channel_stack_type.h"
#ifdef __cplusplus
extern "C" {
#endif
grpc_channel* grpc_channel_create(grpc_exec_ctx* exec_ctx, const char* target,
const grpc_channel_args* args,
grpc_channel_stack_type channel_stack_type,
grpc_transport* optional_transport);
grpc_channel* grpc_channel_create_with_builder(
grpc_exec_ctx* exec_ctx, grpc_channel_stack_builder* builder,
grpc_channel_stack_type channel_stack_type);
/** Create a call given a grpc_channel, in order to call \a method.
Progress is tied to activity on \a pollset_set. The returned call object is
meant to be used with \a grpc_call_start_batch_and_execute, which relies on
callbacks to signal completions. \a method and \a host need
only live through the invocation of this function. If \a parent_call is
non-NULL, it must be a server-side call. It will be used to propagate
properties from the server call to this new client call, depending on the
value of \a propagation_mask (see propagation_bits.h for possible values) */
grpc_call* grpc_channel_create_pollset_set_call(
grpc_exec_ctx* exec_ctx, grpc_channel* channel, grpc_call* parent_call,
uint32_t propagation_mask, grpc_pollset_set* pollset_set, grpc_slice method,
const grpc_slice* host, grpc_millis deadline, void* reserved);
/** Get a (borrowed) pointer to this channels underlying channel stack */
grpc_channel_stack* grpc_channel_get_channel_stack(grpc_channel* channel);
/** Get a grpc_mdelem of grpc-status: X where X is the numeric value of
status_code.
The returned elem is owned by the caller. */
grpc_mdelem grpc_channel_get_reffed_status_elem(grpc_exec_ctx* exec_ctx,
grpc_channel* channel,
int status_code);
size_t grpc_channel_get_call_size_estimate(grpc_channel* channel);
void grpc_channel_update_call_size_estimate(grpc_channel* channel, size_t size);
#ifndef NDEBUG
void grpc_channel_internal_ref(grpc_channel* channel, const char* reason);
void grpc_channel_internal_unref(grpc_exec_ctx* exec_ctx, grpc_channel* channel,
const char* reason);
#define GRPC_CHANNEL_INTERNAL_REF(channel, reason) \
grpc_channel_internal_ref(channel, reason)
#define GRPC_CHANNEL_INTERNAL_UNREF(exec_ctx, channel, reason) \
grpc_channel_internal_unref(exec_ctx, channel, reason)
#else
void grpc_channel_internal_ref(grpc_channel* channel);
void grpc_channel_internal_unref(grpc_exec_ctx* exec_ctx,
grpc_channel* channel);
#define GRPC_CHANNEL_INTERNAL_REF(channel, reason) \
grpc_channel_internal_ref(channel)
#define GRPC_CHANNEL_INTERNAL_UNREF(exec_ctx, channel, reason) \
grpc_channel_internal_unref(exec_ctx, channel)
#endif
/** Return the channel's compression options. */
grpc_compression_options grpc_channel_compression_options(
const grpc_channel* channel);
#ifdef __cplusplus
}
#endif
#endif /* GRPC_CORE_LIB_SURFACE_CHANNEL_H */
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