mirror of
https://github.com/matrix-org/dendrite.git
synced 2024-11-23 14:51:56 -06:00
57e3622b85
* Initial work on lazyloading * Partially implement lazy loading on /sync * Rename methods * Make missing tests pass * Preallocate slice, even if it will end up with fewer values * Let the cache handle the user mapping * Linter * Cap cache growth
87 lines
2.1 KiB
Go
87 lines
2.1 KiB
Go
package caching
|
|
|
|
import (
|
|
"fmt"
|
|
"time"
|
|
|
|
userapi "github.com/matrix-org/dendrite/userapi/api"
|
|
)
|
|
|
|
const (
|
|
LazyLoadCacheName = "lazy_load_members"
|
|
LazyLoadCacheMaxEntries = 128
|
|
LazyLoadCacheMaxUserEntries = 128
|
|
LazyLoadCacheMutable = true
|
|
LazyLoadCacheMaxAge = time.Minute * 30
|
|
)
|
|
|
|
type LazyLoadCache struct {
|
|
// InMemoryLRUCachePartition containing other InMemoryLRUCachePartitions
|
|
// with the actual cached members
|
|
userCaches *InMemoryLRUCachePartition
|
|
}
|
|
|
|
// NewLazyLoadCache creates a new LazyLoadCache.
|
|
func NewLazyLoadCache() (*LazyLoadCache, error) {
|
|
cache, err := NewInMemoryLRUCachePartition(
|
|
LazyLoadCacheName,
|
|
LazyLoadCacheMutable,
|
|
LazyLoadCacheMaxEntries,
|
|
LazyLoadCacheMaxAge,
|
|
true,
|
|
)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
go cacheCleaner(cache)
|
|
return &LazyLoadCache{
|
|
userCaches: cache,
|
|
}, nil
|
|
}
|
|
|
|
func (c *LazyLoadCache) lazyLoadCacheForUser(device *userapi.Device) (*InMemoryLRUCachePartition, error) {
|
|
cacheName := fmt.Sprintf("%s/%s", device.UserID, device.ID)
|
|
userCache, ok := c.userCaches.Get(cacheName)
|
|
if ok && userCache != nil {
|
|
if cache, ok := userCache.(*InMemoryLRUCachePartition); ok {
|
|
return cache, nil
|
|
}
|
|
}
|
|
cache, err := NewInMemoryLRUCachePartition(
|
|
LazyLoadCacheName,
|
|
LazyLoadCacheMutable,
|
|
LazyLoadCacheMaxUserEntries,
|
|
LazyLoadCacheMaxAge,
|
|
false,
|
|
)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
c.userCaches.Set(cacheName, cache)
|
|
go cacheCleaner(cache)
|
|
return cache, nil
|
|
}
|
|
|
|
func (c *LazyLoadCache) StoreLazyLoadedUser(device *userapi.Device, roomID, userID, eventID string) {
|
|
cache, err := c.lazyLoadCacheForUser(device)
|
|
if err != nil {
|
|
return
|
|
}
|
|
cacheKey := fmt.Sprintf("%s/%s/%s/%s", device.UserID, device.ID, roomID, userID)
|
|
cache.Set(cacheKey, eventID)
|
|
}
|
|
|
|
func (c *LazyLoadCache) IsLazyLoadedUserCached(device *userapi.Device, roomID, userID string) (string, bool) {
|
|
cache, err := c.lazyLoadCacheForUser(device)
|
|
if err != nil {
|
|
return "", false
|
|
}
|
|
|
|
cacheKey := fmt.Sprintf("%s/%s/%s/%s", device.UserID, device.ID, roomID, userID)
|
|
val, ok := cache.Get(cacheKey)
|
|
if !ok {
|
|
return "", ok
|
|
}
|
|
return val.(string), ok
|
|
}
|