The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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70 lines
2.8 KiB
70 lines
2.8 KiB
/* |
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* |
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* Copyright 2015-2016, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following disclaimer |
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* in the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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#include "src/core/census/grpc_plugin.h" |
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#include <limits.h> |
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#include <grpc/census.h> |
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#include "src/core/census/grpc_filter.h" |
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#include "src/core/surface/channel_init.h" |
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#include "src/core/channel/channel_stack_builder.h" |
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static bool maybe_add_census_filter(grpc_channel_stack_builder *builder, |
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void *arg_must_be_null) { |
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const grpc_channel_args *args = |
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grpc_channel_stack_builder_get_channel_arguments(builder); |
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if (grpc_channel_args_is_census_enabled(args)) { |
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return grpc_channel_stack_builder_prepend_filter( |
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builder, &grpc_client_census_filter, NULL, NULL); |
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} |
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return true; |
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} |
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void census_grpc_plugin_init(void) { |
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/* Only initialize census if no one else has and some features are |
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* available. */ |
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if (census_enabled() == CENSUS_FEATURE_NONE && |
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census_supported() != CENSUS_FEATURE_NONE) { |
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if (census_initialize(census_supported())) { /* enable all features. */ |
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gpr_log(GPR_ERROR, "Could not initialize census."); |
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} |
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} |
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grpc_channel_init_register_stage(GRPC_CLIENT_CHANNEL, INT_MAX, |
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maybe_add_census_filter, NULL); |
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grpc_channel_init_register_stage(GRPC_SERVER_CHANNEL, INT_MAX, |
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maybe_add_census_filter, NULL); |
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} |
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void census_grpc_plugin_destroy(void) { census_shutdown(); }
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