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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_EXT_CLIENT_CHANNEL_CONNECTOR_H
#define GRPC_CORE_EXT_CLIENT_CHANNEL_CONNECTOR_H
#include "src/core/lib/channel/channel_stack.h"
#include "src/core/lib/iomgr/resolve_address.h"
#include "src/core/lib/transport/transport.h"
typedef struct grpc_connector grpc_connector;
typedef struct grpc_connector_vtable grpc_connector_vtable;
struct grpc_connector {
const grpc_connector_vtable *vtable;
};
typedef struct {
/** set of pollsets interested in this connection */
grpc_pollset_set *interested_parties;
/** address to connect to */
const grpc_resolved_address *addr;
size_t addr_len;
/** initial connect string to send */
grpc_slice initial_connect_string;
/** deadline for connection */
gpr_timespec deadline;
/** channel arguments (to be passed to transport) */
const grpc_channel_args *channel_args;
} grpc_connect_in_args;
typedef struct {
/** the connected transport */
grpc_transport *transport;
/** channel arguments (to be passed to the filters) */
grpc_channel_args *channel_args;
} grpc_connect_out_args;
struct grpc_connector_vtable {
void (*ref)(grpc_connector *connector);
void (*unref)(grpc_exec_ctx *exec_ctx, grpc_connector *connector);
/** Implementation of grpc_connector_shutdown */
void (*shutdown)(grpc_exec_ctx *exec_ctx, grpc_connector *connector);
/** Implementation of grpc_connector_connect */
void (*connect)(grpc_exec_ctx *exec_ctx, grpc_connector *connector,
const grpc_connect_in_args *in_args,
grpc_connect_out_args *out_args, grpc_closure *notify);
};
grpc_connector *grpc_connector_ref(grpc_connector *connector);
void grpc_connector_unref(grpc_exec_ctx *exec_ctx, grpc_connector *connector);
/** Connect using the connector: max one outstanding call at a time */
void grpc_connector_connect(grpc_exec_ctx *exec_ctx, grpc_connector *connector,
const grpc_connect_in_args *in_args,
grpc_connect_out_args *out_args,
grpc_closure *notify);
/** Cancel any pending connection */
void grpc_connector_shutdown(grpc_exec_ctx *exec_ctx,
grpc_connector *connector);
#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_CONNECTOR_H */
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