propagation_bits.h 1.9 KB

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  1. /*
  2. *
  3. * Copyright 2016 gRPC authors.
  4. *
  5. * Licensed under the Apache License, Version 2.0 (the "License");
  6. * you may not use this file except in compliance with the License.
  7. * You may obtain a copy of the License at
  8. *
  9. * http://www.apache.org/licenses/LICENSE-2.0
  10. *
  11. * Unless required by applicable law or agreed to in writing, software
  12. * distributed under the License is distributed on an "AS IS" BASIS,
  13. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14. * See the License for the specific language governing permissions and
  15. * limitations under the License.
  16. *
  17. */
  18. #ifndef GRPC_IMPL_CODEGEN_PROPAGATION_BITS_H
  19. #define GRPC_IMPL_CODEGEN_PROPAGATION_BITS_H
  20. #include <grpc/impl/codegen/port_platform.h>
  21. #ifdef __cplusplus
  22. extern "C" {
  23. #endif
  24. /** Propagation bits: this can be bitwise or-ed to form propagation_mask for
  25. * grpc_call */
  26. /** Propagate deadline */
  27. #define GRPC_PROPAGATE_DEADLINE ((uint32_t)1)
  28. /** Propagate census context */
  29. #define GRPC_PROPAGATE_CENSUS_STATS_CONTEXT ((uint32_t)2)
  30. #define GRPC_PROPAGATE_CENSUS_TRACING_CONTEXT ((uint32_t)4)
  31. /** Propagate cancellation */
  32. #define GRPC_PROPAGATE_CANCELLATION ((uint32_t)8)
  33. /** Default propagation mask: clients of the core API are encouraged to encode
  34. deltas from this in their implementations... ie write:
  35. GRPC_PROPAGATE_DEFAULTS & ~GRPC_PROPAGATE_DEADLINE to disable deadline
  36. propagation. Doing so gives flexibility in the future to define new
  37. propagation types that are default inherited or not. */
  38. #define GRPC_PROPAGATE_DEFAULTS \
  39. ((uint32_t)(( \
  40. 0xffff | GRPC_PROPAGATE_DEADLINE | GRPC_PROPAGATE_CENSUS_STATS_CONTEXT | \
  41. GRPC_PROPAGATE_CENSUS_TRACING_CONTEXT | GRPC_PROPAGATE_CANCELLATION)))
  42. #ifdef __cplusplus
  43. }
  44. #endif
  45. #endif /* GRPC_IMPL_CODEGEN_PROPAGATION_BITS_H */