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author | Daniel J Walsh <dwalsh@redhat.com> | 2018-03-30 05:49:37 -0400 |
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committer | Atomic Bot <atomic-devel@projectatomic.io> | 2018-04-03 14:48:52 +0000 |
commit | 838df4eec4496868e772d5708e00f38bad478718 (patch) | |
tree | 89e72bb0b9668ff4005156d590465602589ec4c3 /vendor/google.golang.org/grpc/backoff.go | |
parent | f41dc0b2580ae83129264edbe45b92231bd119a2 (diff) | |
download | podman-838df4eec4496868e772d5708e00f38bad478718.tar.gz podman-838df4eec4496868e772d5708e00f38bad478718.tar.bz2 podman-838df4eec4496868e772d5708e00f38bad478718.zip |
Vendor in latest containers/image
Some more features.
docker-archive generates docker legacy compatible images
Do not create $DiffID subdirectories for layers with no configs
Ensure the layer IDs in legacy docker/tarfile metadata are unique
docker-archive: repeated layers are symlinked in the tar file
sysregistries: remove all trailing slashes
Improve docker/* error messages
Fix failure to make auth directory
Create a new slice in Schema1.UpdateLayerInfos
Drop unused storageImageDestination.{image,systemContext}
Load a *storage.Image only once in storageImageSource
Support gzip for docker-archive files
Remove .tar extension from blob and config file names
ostree, src: support copy of compressed layers
ostree: re-pull layer if it misses uncompressed_digest|uncompressed_size
image: fix docker schema v1 -> OCI conversion
Add /etc/containers/certs.d as default certs directory
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Closes: #569
Approved by: mheon
Diffstat (limited to 'vendor/google.golang.org/grpc/backoff.go')
-rw-r--r-- | vendor/google.golang.org/grpc/backoff.go | 80 |
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) -} |