blacklight/aerc
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imap: send message info updates for bulk flag ops

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Send message info updates back to to ui instead of posting a fetch
header action to the worker when performing a bulk flag operation. This
prevents the worker channels from filling up which can result in a
deadlock.

Signed-off-by: Koni Marti <koni.marti@gmail.com>
Tested-by: Tim Culverhouse <tim@timculverhouse.com>
This commit is contained in:
Koni Marti 2022-09-27 23:01:08 +02:00 committed by Robin Jarry
parent 27978a859b
commit 75fc42e270
1 changed files with 59 additions and 41 deletions
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90
worker/imap/flags.go
View file

@ -1,11 +1,10 @@
package imap
import (
"fmt"
"github.com/emersion/go-imap"
"git.sr.ht/~rjarry/aerc/logging"
"git.sr.ht/~rjarry/aerc/models"
"git.sr.ht/~rjarry/aerc/worker/types"
)
@ -37,29 +36,16 @@ func (imapw *IMAPWorker) handleAnsweredMessages(msg *types.AnsweredMessages) {
item = imap.FormatFlagsOp(imap.RemoveFlags, true)
flags = []interface{}{imap.AnsweredFlag}
}
uids := toSeqSet(msg.Uids)
emitErr := func(err error) {
imapw.worker.PostMessage(&types.Error{
imapw.handleStoreOps(msg, msg.Uids, item, flags,
func(_msg *imap.Message) error {
imapw.worker.PostMessage(&types.MessageInfo{
Message: types.RespondTo(msg),
Error: err,
Info: &models.MessageInfo{
Flags: translateImapFlags(_msg.Flags),
Uid: _msg.Uid,
},
}, nil)
}
if err := imapw.client.UidStore(uids, item, flags, nil); err != nil {
emitErr(err)
return
}
// Post in a separate goroutine to prevent deadlocking
go imapw.worker.PostAction(&types.FetchMessageHeaders{
Uids: msg.Uids,
}, func(_msg types.WorkerMessage) {
switch m := _msg.(type) {
case *types.Error:
err := fmt.Errorf("handleAnsweredMessages: %w", m.Error)
logging.Errorf("could not fetch headers: %v", err)
emitErr(err)
case *types.Done:
imapw.worker.PostMessage(&types.Done{Message: types.RespondTo(msg)}, nil)
}
return nil
})
}
@ -69,28 +55,60 @@ func (imapw *IMAPWorker) handleFlagMessages(msg *types.FlagMessages) {
if !msg.Enable {
item = imap.FormatFlagsOp(imap.RemoveFlags, true)
}
uids := toSeqSet(msg.Uids)
imapw.handleStoreOps(msg, msg.Uids, item, flags,
func(_msg *imap.Message) error {
imapw.worker.PostMessage(&types.MessageInfo{
Message: types.RespondTo(msg),
Info: &models.MessageInfo{
Flags: translateImapFlags(_msg.Flags),
Uid: _msg.Uid,
},
}, nil)
return nil
})
}
func (imapw *IMAPWorker) handleStoreOps(
msg types.WorkerMessage, uids []uint32, item imap.StoreItem, flag interface{},
procFunc func(*imap.Message) error,
) {
messages := make(chan *imap.Message)
done := make(chan error)
go func() {
defer logging.PanicHandler()
var reterr error
for _msg := range messages {
err := procFunc(_msg)
if err != nil {
if reterr == nil {
reterr = err
}
// drain the channel upon error
for range messages {
}
}
}
done <- reterr
}()
emitErr := func(err error) {
imapw.worker.PostMessage(&types.Error{
Message: types.RespondTo(msg),
Error: err,
}, nil)
}
if err := imapw.client.UidStore(uids, item, flags, nil); err != nil {
set := toSeqSet(uids)
if err := imapw.client.UidStore(set, item, flag, messages); err != nil {
emitErr(err)
return
}
// Post in a separate goroutine to prevent deadlocking
go imapw.worker.PostAction(&types.FetchMessageHeaders{
Uids: msg.Uids,
}, func(_msg types.WorkerMessage) {
switch m := _msg.(type) {
case *types.Error:
err := fmt.Errorf("handleFlagMessages: %w", m.Error)
logging.Errorf("could not fetch headers: %v", err)
if err := <-done; err != nil {
emitErr(err)
case *types.Done:
imapw.worker.PostMessage(&types.Done{Message: types.RespondTo(msg)}, nil)
return
}
})
imapw.worker.PostMessage(
&types.Done{Message: types.RespondTo(msg)}, nil)
}