aerc/worker/worker.go
Simon Ser 9ef2a57b51 worker/types: fix Worker.Callbacks race condition
Worker.Process* functions were called in different goroutines than
Worker.Post*. Protect the map with a mutex. Also make the map unexported to
prevent external unprotected accesses.

Worker.Process* functions used to delete items from the map. However they
didn't delete the element they retrieved: callbacks[msg.InResponseTo()] was
read while callbacks[msg] was deleted. I'm not sure I understand why. I tried
to delete the element that was accessed - but this broke everything (UI froze
at "Connecting..."). I don't believe any elements were actually removed from
the map, so the new code just doesn't remove anything.
2019-04-27 14:28:26 -04:00

28 lines
586 B
Go

package worker
import (
"git.sr.ht/~sircmpwn/aerc2/worker/imap"
"git.sr.ht/~sircmpwn/aerc2/worker/types"
"fmt"
"log"
"net/url"
)
// Guesses the appropriate worker type based on the given source string
func NewWorker(source string, logger *log.Logger) (*types.Worker, error) {
u, err := url.Parse(source)
if err != nil {
return nil, err
}
worker := types.NewWorker(logger)
switch u.Scheme {
case "imap":
fallthrough
case "imaps":
worker.Backend = imap.NewIMAPWorker(worker)
default:
return nil, fmt.Errorf("Unknown backend %s", u.Scheme)
}
return worker, nil
}