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package maildir
import (
"context"
"runtime"
"sync"
"git.sr.ht/~rjarry/aerc/log"
"git.sr.ht/~rjarry/aerc/worker/lib"
"git.sr.ht/~rjarry/aerc/worker/types"
)
func (w *Worker) search(ctx context.Context, criteria *types.SearchCriteria) ([]uint32, error) {
requiredParts := lib.GetRequiredParts(criteria)
w.worker.Debugf("Required parts bitmask for search: %b", requiredParts)
keys, err := w.c.UIDs(*w.selected)
if err != nil {
return nil, err
}
matchedUids := []uint32{}
mu := sync.Mutex{}
wg := sync.WaitGroup{}
// Hard limit at 2x CPU cores
max := runtime.NumCPU() * 2
limit := make(chan struct{}, max)
for _, key := range keys {
select {
case <-ctx.Done():
return nil, context.Canceled
default:
limit <- struct{}{}
wg.Add(1)
go func(key uint32) {
defer log.PanicHandler()
defer wg.Done()
success, err := w.searchKey(key, criteria, requiredParts)
if err != nil {
// don't return early so that we can still get some results
w.worker.Errorf("Failed to search key %d: %v", key, err)
} else if success {
mu.Lock()
matchedUids = append(matchedUids, key)
mu.Unlock()
}
<-limit
}(key)
}
}
wg.Wait()
return matchedUids, nil
}
// Execute the search criteria for the given key, returns true if search succeeded
func (w *Worker) searchKey(key uint32, criteria *types.SearchCriteria,
parts lib.MsgParts,
) (bool, error) {
message, err := w.c.Message(*w.selected, key)
if err != nil {
return false, err
}
return lib.SearchMessage(message, criteria, parts)
}
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