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-rw-r--r--vendor/google.golang.org/grpc/backoff.go80
1 files changed, 0 insertions, 80 deletions
diff --git a/vendor/google.golang.org/grpc/backoff.go b/vendor/google.golang.org/grpc/backoff.go
deleted file mode 100644
index c99024ee3..000000000
--- a/vendor/google.golang.org/grpc/backoff.go
+++ /dev/null
@@ -1,80 +0,0 @@
-package grpc
-
-import (
- "math/rand"
- "time"
-)
-
-// DefaultBackoffConfig uses values specified for backoff in
-// https://github.com/grpc/grpc/blob/master/doc/connection-backoff.md.
-var (
- DefaultBackoffConfig = BackoffConfig{
- MaxDelay: 120 * time.Second,
- baseDelay: 1.0 * time.Second,
- factor: 1.6,
- jitter: 0.2,
- }
-)
-
-// backoffStrategy defines the methodology for backing off after a grpc
-// connection failure.
-//
-// This is unexported until the gRPC project decides whether or not to allow
-// alternative backoff strategies. Once a decision is made, this type and its
-// method may be exported.
-type backoffStrategy interface {
- // backoff returns the amount of time to wait before the next retry given
- // the number of consecutive failures.
- backoff(retries int) time.Duration
-}
-
-// BackoffConfig defines the parameters for the default gRPC backoff strategy.
-type BackoffConfig struct {
- // MaxDelay is the upper bound of backoff delay.
- MaxDelay time.Duration
-
- // TODO(stevvooe): The following fields are not exported, as allowing
- // changes would violate the current gRPC specification for backoff. If
- // gRPC decides to allow more interesting backoff strategies, these fields
- // may be opened up in the future.
-
- // baseDelay is the amount of time to wait before retrying after the first
- // failure.
- baseDelay time.Duration
-
- // factor is applied to the backoff after each retry.
- factor float64
-
- // jitter provides a range to randomize backoff delays.
- jitter float64
-}
-
-func setDefaults(bc *BackoffConfig) {
- md := bc.MaxDelay
- *bc = DefaultBackoffConfig
-
- if md > 0 {
- bc.MaxDelay = md
- }
-}
-
-func (bc BackoffConfig) backoff(retries int) time.Duration {
- if retries == 0 {
- return bc.baseDelay
- }
- backoff, max := float64(bc.baseDelay), float64(bc.MaxDelay)
- for backoff < max && retries > 0 {
- backoff *= bc.factor
- retries--
- }
- if backoff > max {
- backoff = max
- }
- // Randomize backoff delays so that if a cluster of requests start at
- // the same time, they won't operate in lockstep.
- backoff *= 1 + bc.jitter*(rand.Float64()*2-1)
- if backoff < 0 {
- return 0
- }
- return time.Duration(backoff)
-}