mirror of
https://github.com/superseriousbusiness/gotosocial.git
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120 lines
4.2 KiB
Go
120 lines
4.2 KiB
Go
// GoToSocial
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// Copyright (C) GoToSocial Authors admin@gotosocial.org
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// SPDX-License-Identifier: AGPL-3.0-or-later
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package cache
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import (
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"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
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)
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type Caches struct {
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// GTS provides access to the collection of gtsmodel object caches.
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// (used by the database).
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GTS GTSCaches
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// AP provides access to the collection of ActivityPub object caches.
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// (planned to be used by the typeconverter).
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AP APCaches
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// Visibility provides access to the item visibility cache.
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// (used by the visibility filter).
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Visibility VisibilityCache
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// prevent pass-by-value.
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_ nocopy
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}
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// Init will (re)initialize both the GTS and AP cache collections.
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// NOTE: the cache MUST NOT be in use anywhere, this is not thread-safe.
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func (c *Caches) Init() {
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c.GTS.Init()
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c.AP.Init()
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c.Visibility.Init()
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// Setup cache invalidate hooks.
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// !! READ THE METHOD COMMENT
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c.setuphooks()
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}
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// Start will start both the GTS and AP cache collections.
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func (c *Caches) Start() {
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c.GTS.Start()
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c.AP.Start()
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c.Visibility.Start()
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}
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// Stop will stop both the GTS and AP cache collections.
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func (c *Caches) Stop() {
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c.GTS.Stop()
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c.AP.Stop()
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c.Visibility.Stop()
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}
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// setuphooks sets necessary cache invalidation hooks between caches,
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// as an invalidation indicates a database UPDATE / DELETE. INSERT is
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// not handled by invalidation hooks and must be invalidated manually.
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func (c *Caches) setuphooks() {
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c.GTS.Account().SetInvalidateCallback(func(account *gtsmodel.Account) {
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// Invalidate account ID cached visibility.
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c.Visibility.Invalidate("ItemID", account.ID)
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c.Visibility.Invalidate("RequesterID", account.ID)
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})
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c.GTS.Block().SetInvalidateCallback(func(block *gtsmodel.Block) {
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// Invalidate block origin account ID cached visibility.
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c.Visibility.Invalidate("ItemID", block.AccountID)
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c.Visibility.Invalidate("RequesterID", block.AccountID)
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// Invalidate block target account ID cached visibility.
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c.Visibility.Invalidate("ItemID", block.TargetAccountID)
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c.Visibility.Invalidate("RequesterID", block.TargetAccountID)
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})
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c.GTS.Follow().SetInvalidateCallback(func(follow *gtsmodel.Follow) {
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// Invalidate follow origin account ID cached visibility.
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c.Visibility.Invalidate("ItemID", follow.AccountID)
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c.Visibility.Invalidate("RequesterID", follow.AccountID)
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// Invalidate follow target account ID cached visibility.
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c.Visibility.Invalidate("ItemID", follow.TargetAccountID)
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c.Visibility.Invalidate("RequesterID", follow.TargetAccountID)
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})
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c.GTS.FollowRequest().SetInvalidateCallback(func(followReq *gtsmodel.FollowRequest) {
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// Invalidate follow request origin account ID cached visibility.
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c.Visibility.Invalidate("ItemID", followReq.AccountID)
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c.Visibility.Invalidate("RequesterID", followReq.AccountID)
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// Invalidate follow request target account ID cached visibility.
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c.Visibility.Invalidate("ItemID", followReq.TargetAccountID)
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c.Visibility.Invalidate("RequesterID", followReq.TargetAccountID)
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// Invalidate any cached follow corresponding to this request.
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c.GTS.Follow().Invalidate("AccountID.TargetAccountID", followReq.AccountID, followReq.TargetAccountID)
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})
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c.GTS.Status().SetInvalidateCallback(func(status *gtsmodel.Status) {
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// Invalidate status ID cached visibility.
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c.Visibility.Invalidate("ItemID", status.ID)
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})
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c.GTS.User().SetInvalidateCallback(func(user *gtsmodel.User) {
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// Invalidate local account ID cached visibility.
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c.Visibility.Invalidate("ItemID", user.AccountID)
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c.Visibility.Invalidate("RequesterID", user.AccountID)
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})
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}
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