gotosocial/internal/workers/workers.go

122 lines
3.7 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 workers
import (
"log"
"runtime"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/messages"
"github.com/superseriousbusiness/gotosocial/internal/scheduler"
"github.com/superseriousbusiness/gotosocial/internal/transport/delivery"
)
type Workers struct {
// Main task scheduler instance.
Scheduler scheduler.Scheduler
// Delivery provides a worker pool that
// handles outgoing ActivityPub deliveries.
// It contains an embedded (but accessible)
// indexed queue of Delivery{} objects.
Delivery delivery.WorkerPool
// Client provides a worker pool that handles
// incoming processing jobs from the client API.
Client MsgWorkerPool[*messages.FromClientAPI]
// Federator provides a worker pool that handles
// incoming processing jobs from the fedi API.
Federator MsgWorkerPool[*messages.FromFediAPI]
// Dereference provides a worker pool
// for asynchronous dereferencer jobs.
Dereference FnWorkerPool
// Media provides a worker pool for
// asynchronous media processing jobs.
Media FnWorkerPool
// prevent pass-by-value.
_ nocopy
}
// StartScheduler starts the job scheduler.
func (w *Workers) StartScheduler() {
tryUntil("starting scheduler", 5, w.Scheduler.Start)
}
// Start will start contained worker pools.
func (w *Workers) Start() {
// Get currently set GOMAXPROCS.
maxprocs := runtime.GOMAXPROCS(0)
tryUntil("start delivery workerpool", 5, func() bool {
n := config.GetAdvancedSenderMultiplier()
if n < 1 {
// clamp min senders to 1.
return w.Delivery.Start(1)
}
return w.Delivery.Start(n * maxprocs)
})
tryUntil("starting client workerpool", 5, func() bool {
return w.Client.Start(4 * maxprocs)
})
tryUntil("starting federator workerpool", 5, func() bool {
return w.Federator.Start(4 * maxprocs)
})
tryUntil("starting dereference workerpool", 5, func() bool {
return w.Dereference.Start(4 * maxprocs)
})
tryUntil("starting media workerpool", 5, func() bool {
return w.Media.Start(8 * maxprocs)
})
}
// Stop will stop all of the contained worker pools (and global scheduler).
func (w *Workers) Stop() {
tryUntil("stopping scheduler", 5, w.Scheduler.Stop)
tryUntil("stopping delivery workerpool", 5, w.Delivery.Stop)
tryUntil("stopping client API workerpool", 5, w.Client.Stop)
tryUntil("stopping federator workerpool", 5, w.Federator.Stop)
tryUntil("stopping dereference workerpool", 5, w.Dereference.Stop)
tryUntil("stopping media workerpool", 5, w.Media.Stop)
}
// nocopy when embedded will signal linter to
// error on pass-by-value of parent struct.
type nocopy struct{}
func (*nocopy) Lock() {}
func (*nocopy) Unlock() {}
// tryUntil will attempt to call 'do' for 'count' attempts, before panicking with 'msg'.
func tryUntil(msg string, count int, do func() bool) {
for i := 0; i < count; i++ {
if do() {
return
}
}
log.Panicf("failed %s after %d tries", msg, count)
}