mirror of https://github.com/grafana/loki
Update vendored dskit (#8155)
**What this PR does / why we need it**:
The Changelog diff between the two commits is
3e308a4944...7242706251
```
* [CHANGE] Cache: Switch Memcached backend to use `github.com/grafana/gomemcache` repository instead of `github.com/bradfitz/gomemcache`. #248
* [ENHANCEMENT] Add cache, gate and stringsutil packages. #239
* [ENHANCEMENT] Cache: add Redis support. #245
* [ENHANCEMENT] Cache: Add the ability to use a custom memory allocator for cache results. #249
* [BUGFIX] Memberlist: fix crash when methods from `memberlist.Delegate` interface are called on `*memberlist.KV` before the service is fully started. #244
```
**Checklist**
- [x] Reviewed the [`CONTRIBUTING.md`](../CONTRIBUTING.md) guide
(**required**)
- N/A Documentation added
- N/A Tests updated
- N/A `CHANGELOG.md` updated
- N/A Changes that require user attention or interaction to upgrade are
documented in `docs/sources/upgrading/_index.md`
pull/8159/head
Dimitar Dimitrov
2 years ago
committed by
GitHub
parent
d317e659c7
commit
6ea5a8e497
@ -0,0 +1,11 @@ |
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package slices |
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func Contains[T comparable](haystack []T, needle T) bool { |
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for _, e := range haystack { |
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if e == needle { |
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return true |
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} |
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} |
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return false |
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} |
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@ -1,12 +0,0 @@ |
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package util |
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// StringsContain returns true if the search value is within the list of input values.
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func StringsContain(values []string, search string) bool { |
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for _, v := range values { |
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if search == v { |
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return true |
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} |
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} |
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return false |
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} |
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@ -0,0 +1,59 @@ |
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package memcache |
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var nopAllocator = &defaultAllocator{} |
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func newOptions(opts ...Option) *Options { |
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o := &Options{ |
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Alloc: nopAllocator, |
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} |
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for _, opt := range opts { |
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opt(o) |
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} |
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return o |
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} |
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// Options are used to modify the behavior of an individual Get or GetMulti
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// call made by the Client. They are constructed by applying Option callbacks
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// passed to a Client method to a default Options instance.
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type Options struct { |
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Alloc Allocator |
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} |
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// Option is a callback used to modify the Options that a particular Client
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// method uses.
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type Option func(opts *Options) |
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// WithAllocator creates a new Option that makes use of a specific memory Allocator
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// for result values (Item.Value) loaded from memcached.
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func WithAllocator(alloc Allocator) Option { |
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return func(opts *Options) { |
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opts.Alloc = alloc |
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} |
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} |
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// Allocator allows memory for memcached result values (Item.Value) to be managed by
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// callers of the Client instead of by the Client itself. For example, this can be
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// used by callers to implement arena-style memory management. The default implementation
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// used, when not otherwise overridden, uses `make` and relies on GC for cleanup.
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type Allocator interface { |
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// Get returns a byte slice with at least sz capacity. Length of the slice is
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// not guaranteed and so must be asserted by callers (the Client).
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Get(sz int) *[]byte |
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// Put returns the byte slice to the underlying allocator. The Client will
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// only call this method during error handling when allocated values are not
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// returned to the caller as cache results.
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Put(b *[]byte) |
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} |
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type defaultAllocator struct{} |
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func (d defaultAllocator) Get(sz int) *[]byte { |
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b := make([]byte, sz) |
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return &b |
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} |
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func (d defaultAllocator) Put(_ *[]byte) { |
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// no-op
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} |
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