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/*
*
* Copyright 2018 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.
*
*/
#include <grpc/support/port_platform.h>
#include "src/core/ext/filters/client_channel/server_address.h"
#include <string.h>
namespace grpc_core {
//
// ServerAddress
//
ServerAddress::ServerAddress(const grpc_resolved_address& address,
grpc_channel_args* args)
: address_(address), args_(args) {}
ServerAddress::ServerAddress(const void* address, size_t address_len,
grpc_channel_args* args)
: args_(args) {
memcpy(address_.addr, address, address_len);
address_.len = static_cast<socklen_t>(address_len);
}
int ServerAddress::Cmp(const ServerAddress& other) const {
if (address_.len > other.address_.len) return 1;
if (address_.len < other.address_.len) return -1;
int retval = memcmp(address_.addr, other.address_.addr, address_.len);
if (retval != 0) return retval;
return grpc_channel_args_compare(args_, other.args_);
}
bool ServerAddress::IsBalancer() const {
return grpc_channel_arg_get_bool(
grpc_channel_args_find(args_, GRPC_ARG_ADDRESS_IS_BALANCER), false);
}
//
// ServerAddressList
//
namespace {
void* ServerAddressListCopy(void* addresses) {
ServerAddressList* a = static_cast<ServerAddressList*>(addresses);
return New<ServerAddressList>(*a);
}
void ServerAddressListDestroy(void* addresses) {
ServerAddressList* a = static_cast<ServerAddressList*>(addresses);
Delete(a);
}
int ServerAddressListCompare(void* addresses1, void* addresses2) {
ServerAddressList* a1 = static_cast<ServerAddressList*>(addresses1);
ServerAddressList* a2 = static_cast<ServerAddressList*>(addresses2);
if (a1->size() > a2->size()) return 1;
if (a1->size() < a2->size()) return -1;
for (size_t i = 0; i < a1->size(); ++i) {
int retval = (*a1)[i].Cmp((*a2)[i]);
if (retval != 0) return retval;
}
return 0;
}
const grpc_arg_pointer_vtable server_addresses_arg_vtable = {
ServerAddressListCopy, ServerAddressListDestroy, ServerAddressListCompare};
} // namespace
grpc_arg CreateServerAddressListChannelArg(const ServerAddressList* addresses) {
return grpc_channel_arg_pointer_create(
const_cast<char*>(GRPC_ARG_SERVER_ADDRESS_LIST),
const_cast<ServerAddressList*>(addresses), &server_addresses_arg_vtable);
}
ServerAddressList* FindServerAddressListChannelArg(
const grpc_channel_args* channel_args) {
const grpc_arg* lb_addresses_arg =
grpc_channel_args_find(channel_args, GRPC_ARG_SERVER_ADDRESS_LIST);
if (lb_addresses_arg == nullptr || lb_addresses_arg->type != GRPC_ARG_POINTER)
return nullptr;
return static_cast<ServerAddressList*>(lb_addresses_arg->value.pointer.p);
}
} // namespace grpc_core
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