third_party/grpc/src/core/census/grpc_context.c

/*
 *
 * 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.
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 * 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
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 */

#include <grpc/census.h>
#include <grpc/grpc.h>
#include "src/core/surface/api_trace.h"
#include "src/core/surface/call.h"

void grpc_census_call_set_context(grpc_call *call, census_context *context) {
  GRPC_API_TRACE("grpc_census_call_set_context(call=%p, census_context=%p)", 2,
                 (call, context));
  if (census_enabled() == CENSUS_FEATURE_NONE) {
    return;
  }
  if (context != NULL) {
    grpc_call_context_set(call, GRPC_CONTEXT_TRACING, context, NULL);
  }
}

census_context *grpc_census_call_get_context(grpc_call *call) {
  GRPC_API_TRACE("grpc_census_call_get_context(call=%p)", 1, (call));
  return (census_context *)grpc_call_context_get(call, GRPC_CONTEXT_TRACING);
}