| /* |
| * |
| * 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 <limits.h> |
| #include <stdbool.h> |
| #include <string.h> |
| |
| #include <grpc/support/alloc.h> |
| |
| #include "src/core/ext/client_config/client_channel.h" |
| #include "src/core/ext/client_config/lb_policy_registry.h" |
| #include "src/core/ext/client_config/resolver_registry.h" |
| #include "src/core/ext/client_config/subchannel_index.h" |
| #include "src/core/lib/surface/channel_init.h" |
| |
| static bool append_filter(grpc_channel_stack_builder *builder, void *arg) { |
| return grpc_channel_stack_builder_append_filter( |
| builder, (const grpc_channel_filter *)arg, NULL, NULL); |
| } |
| |
| static bool set_default_host_if_unset(grpc_channel_stack_builder *builder, |
| void *unused) { |
| const grpc_channel_args *args = |
| grpc_channel_stack_builder_get_channel_arguments(builder); |
| for (size_t i = 0; i < args->num_args; i++) { |
| if (0 == strcmp(args->args[i].key, GRPC_ARG_DEFAULT_AUTHORITY) || |
| 0 == strcmp(args->args[i].key, GRPC_SSL_TARGET_NAME_OVERRIDE_ARG)) { |
| return true; |
| } |
| } |
| char *default_authority = grpc_get_default_authority( |
| grpc_channel_stack_builder_get_target(builder)); |
| if (default_authority != NULL) { |
| grpc_arg arg; |
| arg.type = GRPC_ARG_STRING; |
| arg.key = GRPC_ARG_DEFAULT_AUTHORITY; |
| arg.value.string = default_authority; |
| grpc_channel_args *new_args = grpc_channel_args_copy_and_add(args, &arg, 1); |
| grpc_channel_stack_builder_set_channel_arguments(builder, new_args); |
| gpr_free(default_authority); |
| grpc_channel_args_destroy(new_args); |
| } |
| return true; |
| } |
| |
| void grpc_client_config_init(void) { |
| grpc_lb_policy_registry_init(); |
| grpc_resolver_registry_init(); |
| grpc_subchannel_index_init(); |
| grpc_channel_init_register_stage(GRPC_CLIENT_CHANNEL, INT_MIN, |
| set_default_host_if_unset, NULL); |
| grpc_channel_init_register_stage(GRPC_CLIENT_CHANNEL, INT_MAX, append_filter, |
| (void *)&grpc_client_channel_filter); |
| } |
| |
| void grpc_client_config_shutdown(void) { |
| grpc_subchannel_index_shutdown(); |
| grpc_channel_init_shutdown(); |
| grpc_resolver_registry_shutdown(); |
| grpc_lb_policy_registry_shutdown(); |
| } |