mirror of
https://github.com/1f349/dendrite.git
synced 2024-09-20 02:46:34 +01:00
57b7fa3db8
* More key tweaks * Start testing stuff * Move responsibility for generating local keys into server key API, don't register prom in caches unless needed, start tests * Don't store our own keys in the database * Don't store our own keys in the database * Don't run tests for now * Tweak caching behaviour, update tests * Update comments, add fixes from forward-merge * Debug logging * Debug logging * Perform final comparison against original set of requests * oops * Fetcher timeouts * Fetcher timeouts * missing func * Tweaks * Update gomatrixserverlib * Fix Federation API test * Break up FetchKeys * Add comments to caching * Add URL check in test * Partially revert "Move responsibility for generating local keys into server key API, don't register prom in caches unless needed, start tests" This reverts commit d7eb54c5b30b2f6a9d6514b643e32e6ad2b602f3. * Fix federation API test * Fix internal cache stuff again * Fix server key API test * Update comments * Update comments from review * Fix lint
85 lines
1.9 KiB
Go
85 lines
1.9 KiB
Go
package caching
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import (
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"fmt"
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lru "github.com/hashicorp/golang-lru"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/promauto"
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)
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func NewInMemoryLRUCache(enablePrometheus bool) (*Caches, error) {
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roomVersions, err := NewInMemoryLRUCachePartition(
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RoomVersionCacheName,
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RoomVersionCacheMutable,
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RoomVersionCacheMaxEntries,
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enablePrometheus,
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)
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if err != nil {
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return nil, err
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}
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serverKeys, err := NewInMemoryLRUCachePartition(
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ServerKeyCacheName,
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ServerKeyCacheMutable,
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ServerKeyCacheMaxEntries,
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enablePrometheus,
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)
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if err != nil {
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return nil, err
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}
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return &Caches{
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RoomVersions: roomVersions,
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ServerKeys: serverKeys,
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}, nil
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}
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type InMemoryLRUCachePartition struct {
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name string
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mutable bool
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maxEntries int
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lru *lru.Cache
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}
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func NewInMemoryLRUCachePartition(name string, mutable bool, maxEntries int, enablePrometheus bool) (*InMemoryLRUCachePartition, error) {
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var err error
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cache := InMemoryLRUCachePartition{
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name: name,
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mutable: mutable,
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maxEntries: maxEntries,
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}
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cache.lru, err = lru.New(maxEntries)
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if err != nil {
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return nil, err
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}
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if enablePrometheus {
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promauto.NewGaugeFunc(prometheus.GaugeOpts{
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Namespace: "dendrite",
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Subsystem: "caching_in_memory_lru",
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Name: name,
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}, func() float64 {
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return float64(cache.lru.Len())
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})
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}
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return &cache, nil
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}
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func (c *InMemoryLRUCachePartition) Set(key string, value interface{}) {
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if !c.mutable {
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if peek, ok := c.lru.Peek(key); ok && peek != value {
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panic(fmt.Sprintf("invalid use of immutable cache tries to mutate existing value of %q", key))
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}
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}
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c.lru.Add(key, value)
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}
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func (c *InMemoryLRUCachePartition) Unset(key string) {
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if !c.mutable {
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panic(fmt.Sprintf("invalid use of immutable cache tries to unset value of %q", key))
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}
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c.lru.Remove(key)
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}
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func (c *InMemoryLRUCachePartition) Get(key string) (value interface{}, ok bool) {
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return c.lru.Get(key)
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}
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