gotosocial/internal/cache/visibility.go
kim adf345f1ec
[chore] bump go structr cache version -> v0.6.0 (#2773)
* update go-structr library -> v0.6.0, add necessary wrapping types + code changes to support these changes

* update readme with go-structr package changes

* improved wrapping of the SliceCache type

* add code comments for the cache wrapper types

* remove test.out 😇

---------

Co-authored-by: tobi <31960611+tsmethurst@users.noreply.github.com>
2024-04-02 12:03:40 +02:00

84 lines
2.4 KiB
Go

// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cache
import (
"codeberg.org/gruf/go-structr"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/log"
)
type VisibilityCache struct {
StructCache[*CachedVisibility]
}
func (c *Caches) initVisibility() {
// Calculate maximum cache size.
cap := calculateResultCacheMax(
sizeofVisibility(), // model in-mem size.
config.GetCacheVisibilityMemRatio(),
)
log.Infof(nil, "Visibility cache size = %d", cap)
copyF := func(v1 *CachedVisibility) *CachedVisibility {
v2 := new(CachedVisibility)
*v2 = *v1
return v2
}
c.Visibility.Init(structr.CacheConfig[*CachedVisibility]{
Indices: []structr.IndexConfig{
{Fields: "ItemID", Multiple: true},
{Fields: "RequesterID", Multiple: true},
{Fields: "Type,RequesterID,ItemID"},
},
MaxSize: cap,
IgnoreErr: ignoreErrors,
Copy: copyF,
})
}
// VisibilityType represents a visibility lookup type.
// We use a byte type here to improve performance in the
// result cache when generating the key.
type VisibilityType byte
const (
// Possible cache visibility lookup types.
VisibilityTypeAccount = VisibilityType('a')
VisibilityTypeStatus = VisibilityType('s')
VisibilityTypeHome = VisibilityType('h')
VisibilityTypePublic = VisibilityType('p')
)
// CachedVisibility represents a cached visibility lookup value.
type CachedVisibility struct {
// ItemID is the ID of the item in question (status / account).
ItemID string
// RequesterID is the ID of the requesting account for this visibility lookup.
RequesterID string
// Type is the visibility lookup type.
Type VisibilityType
// Value is the actual visibility value.
Value bool
}