backoff.go 1.9 KB

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  1. /*
  2. *
  3. * Copyright 2017 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. // See internal/backoff package for the backoff implementation. This file is
  19. // kept for the exported types and API backward compatibility.
  20. package grpc
  21. import (
  22. "time"
  23. "google.golang.org/grpc/backoff"
  24. )
  25. // DefaultBackoffConfig uses values specified for backoff in
  26. // https://github.com/grpc/grpc/blob/master/doc/connection-backoff.md.
  27. //
  28. // Deprecated: use ConnectParams instead. Will be supported throughout 1.x.
  29. var DefaultBackoffConfig = BackoffConfig{
  30. MaxDelay: 120 * time.Second,
  31. }
  32. // BackoffConfig defines the parameters for the default gRPC backoff strategy.
  33. //
  34. // Deprecated: use ConnectParams instead. Will be supported throughout 1.x.
  35. type BackoffConfig struct {
  36. // MaxDelay is the upper bound of backoff delay.
  37. MaxDelay time.Duration
  38. }
  39. // ConnectParams defines the parameters for connecting and retrying. Users are
  40. // encouraged to use this instead of the BackoffConfig type defined above. See
  41. // here for more details:
  42. // https://github.com/grpc/grpc/blob/master/doc/connection-backoff.md.
  43. //
  44. // # Experimental
  45. //
  46. // Notice: This type is EXPERIMENTAL and may be changed or removed in a
  47. // later release.
  48. type ConnectParams struct {
  49. // Backoff specifies the configuration options for connection backoff.
  50. Backoff backoff.Config
  51. // MinConnectTimeout is the minimum amount of time we are willing to give a
  52. // connection to complete.
  53. MinConnectTimeout time.Duration
  54. }