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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.
*
*/
#include <string.h>
#include <grpc/support/alloc.h>
#include <grpc/support/string_util.h>
#include "src/core/ext/client_channel/lb_policy_factory.h"
grpc_lb_addresses* grpc_lb_addresses_create(size_t num_addresses) {
grpc_lb_addresses* addresses = gpr_malloc(sizeof(grpc_lb_addresses));
addresses->num_addresses = num_addresses;
const size_t addresses_size = sizeof(grpc_lb_address) * num_addresses;
addresses->addresses = gpr_malloc(addresses_size);
memset(addresses->addresses, 0, addresses_size);
return addresses;
}
grpc_lb_addresses* grpc_lb_addresses_copy(grpc_lb_addresses* addresses,
void* (*user_data_copy)(void*)) {
grpc_lb_addresses* new_addresses =
grpc_lb_addresses_create(addresses->num_addresses);
memcpy(new_addresses->addresses, addresses->addresses,
sizeof(grpc_lb_address) * addresses->num_addresses);
for (size_t i = 0; i < addresses->num_addresses; ++i) {
if (new_addresses->addresses[i].balancer_name != NULL) {
new_addresses->addresses[i].balancer_name =
gpr_strdup(new_addresses->addresses[i].balancer_name);
}
if (user_data_copy != NULL) {
new_addresses->addresses[i].user_data =
user_data_copy(new_addresses->addresses[i].user_data);
}
}
return new_addresses;
}
void grpc_lb_addresses_set_address(grpc_lb_addresses* addresses, size_t index,
void* address, size_t address_len,
bool is_balancer, char* balancer_name,
void* user_data) {
GPR_ASSERT(index < addresses->num_addresses);
grpc_lb_address* target = &addresses->addresses[index];
memcpy(target->address.addr, address, address_len);
target->address.len = address_len;
target->is_balancer = is_balancer;
target->balancer_name = balancer_name;
target->user_data = user_data;
}
void grpc_lb_addresses_destroy(grpc_lb_addresses* addresses,
void (*user_data_destroy)(void*)) {
for (size_t i = 0; i < addresses->num_addresses; ++i) {
gpr_free(addresses->addresses[i].balancer_name);
if (user_data_destroy != NULL) {
user_data_destroy(addresses->addresses[i].user_data);
}
}
gpr_free(addresses->addresses);
gpr_free(addresses);
}
void grpc_lb_policy_factory_ref(grpc_lb_policy_factory* factory) {
factory->vtable->ref(factory);
}
void grpc_lb_policy_factory_unref(grpc_lb_policy_factory* factory) {
factory->vtable->unref(factory);
}
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) {
if (factory == NULL) return NULL;
return factory->vtable->create_lb_policy(exec_ctx, factory, args);
}
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