diff options
Diffstat (limited to 'src/core/ext/client_channel/lb_policy_factory.c')
-rw-r--r-- | src/core/ext/client_channel/lb_policy_factory.c | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/src/core/ext/client_channel/lb_policy_factory.c b/src/core/ext/client_channel/lb_policy_factory.c new file mode 100644 index 0000000000..45753e6942 --- /dev/null +++ b/src/core/ext/client_channel/lb_policy_factory.c @@ -0,0 +1,107 @@ +/* + * + * 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); +} |