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/*
*
* Copyright 2015-2016, 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_CLIENT_CONFIG_LB_POLICY_FACTORY_H
#define GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_FACTORY_H
#include "src/core/lib/client_config/lb_policy.h"
#include "src/core/lib/client_config/subchannel_factory.h"
#include "src/core/lib/iomgr/resolve_address.h"
#include "src/core/lib/iomgr/exec_ctx.h"
typedef struct grpc_lb_policy_factory grpc_lb_policy_factory;
typedef struct grpc_lb_policy_factory_vtable grpc_lb_policy_factory_vtable;
/** grpc_lb_policy provides grpc_client_config objects to grpc_channel
objects */
struct grpc_lb_policy_factory {
const grpc_lb_policy_factory_vtable *vtable;
};
typedef struct grpc_lb_policy_args {
grpc_resolved_addresses *addresses;
grpc_subchannel_factory *subchannel_factory;
} grpc_lb_policy_args;
struct grpc_lb_policy_factory_vtable {
void (*ref)(grpc_lb_policy_factory *factory);
void (*unref)(grpc_lb_policy_factory *factory);
/** Implementation of grpc_lb_policy_factory_create_lb_policy */
grpc_lb_policy *(*create_lb_policy)(grpc_exec_ctx *exec_ctx,
grpc_lb_policy_factory *factory,
grpc_lb_policy_args *args);
/** Name for the LB policy this factory implements */
const char *name;
};
void grpc_lb_policy_factory_ref(grpc_lb_policy_factory *factory);
void grpc_lb_policy_factory_unref(grpc_lb_policy_factory *factory);
/** Create a lb_policy instance. */
grpc_lb_policy *grpc_lb_policy_factory_create_lb_policy(
grpc_exec_ctx *exec_ctx, grpc_lb_policy_factory *factory,
grpc_lb_policy_args *args);
#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_FACTORY_H */
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