gotosocial/internal/concurrency/workers.go
tobi dfdc473cef
[chore] Webfinger rework (#627)
* move finger to dereferencer

* totally break GetRemoteAccount

* start reworking finger func a bit

* start reworking getRemoteAccount a bit

* move mention parts to namestring

* rework webfingerget

* use util function to extract webfinger parts

* use accountDomain

* rework finger again, final form

* just a real nasty commit, the worst

* remove refresh from account

* use new ASRepToAccount signature

* fix incorrect debug call

* fix for new getRemoteAccount

* rework GetRemoteAccount

* start updating tests to remove repetition

* break a lot of tests
Move shared test logic into the testrig,
rather than having it scattered all over
the place. This allows us to just mock
the transport controller once, and have
all tests use it (unless they need not to
for some other reason).

* fix up tests to use main mock httpclient

* webfinger only if necessary

* cheeky linting with the lads

* update mentionName regex
recognize instance accounts

* don't finger instance accounts

* test webfinger part extraction

* increase default worker count to 4 per cpu

* don't repeat regex parsing

* final search for discovered accountDomain

* be more permissive in namestring lookup

* add more extraction tests

* simplify GetParseMentionFunc

* skip long search if local account

* fix broken test
2022-06-11 11:01:34 +02:00

122 lines
3.4 KiB
Go

/*
GoToSocial
Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
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 concurrency
import (
"context"
"errors"
"fmt"
"path"
"reflect"
"runtime"
"codeberg.org/gruf/go-runners"
"github.com/sirupsen/logrus"
)
// WorkerPool represents a proccessor for MsgType objects, using a worker pool to allocate resources.
type WorkerPool[MsgType any] struct {
workers runners.WorkerPool
process func(context.Context, MsgType) error
prefix string // contains type prefix for logging
}
// New returns a new WorkerPool[MsgType] with given number of workers and queue ratio,
// where the queue ratio is multiplied by no. workers to get queue size. If args < 1
// then suitable defaults are determined from the runtime's GOMAXPROCS variable.
func NewWorkerPool[MsgType any](workers int, queueRatio int) *WorkerPool[MsgType] {
var zero MsgType
if workers < 1 {
// ensure sensible workers
workers = runtime.GOMAXPROCS(0) * 4
}
if queueRatio < 1 {
// ensure sensible ratio
queueRatio = 100
}
// Calculate the short type string for the msg type
msgType := reflect.TypeOf(zero).String()
_, msgType = path.Split(msgType)
w := &WorkerPool[MsgType]{
workers: runners.NewWorkerPool(workers, workers*queueRatio),
process: nil,
prefix: fmt.Sprintf("worker.Worker[%s]", msgType),
}
// Log new worker creation with type prefix
logrus.Infof("%s created with workers=%d queue=%d",
w.prefix,
workers,
workers*queueRatio,
)
return w
}
// Start will attempt to start the underlying worker pool, or return error.
func (w *WorkerPool[MsgType]) Start() error {
logrus.Infof("%s starting", w.prefix)
// Check processor was set
if w.process == nil {
return errors.New("nil Worker.process function")
}
// Attempt to start pool
if !w.workers.Start() {
return errors.New("failed to start Worker pool")
}
return nil
}
// Stop will attempt to stop the underlying worker pool, or return error.
func (w *WorkerPool[MsgType]) Stop() error {
logrus.Infof("%s stopping", w.prefix)
// Attempt to stop pool
if !w.workers.Stop() {
return errors.New("failed to stop Worker pool")
}
return nil
}
// SetProcessor will set the Worker's processor function, which is called for each queued message.
func (w *WorkerPool[MsgType]) SetProcessor(fn func(context.Context, MsgType) error) {
if w.process != nil {
logrus.Panicf("%s Worker.process is already set", w.prefix)
}
w.process = fn
}
// Queue will queue provided message to be processed with there's a free worker.
func (w *WorkerPool[MsgType]) Queue(msg MsgType) {
logrus.Tracef("%s queueing message (workers=%d queue=%d): %+v",
w.prefix, w.workers.Workers(), w.workers.Queue(), msg,
)
w.workers.Enqueue(func(ctx context.Context) {
if err := w.process(ctx, msg); err != nil {
logrus.Errorf("%s %v", w.prefix, err)
}
})
}