mirror of https://github.com/v2ray/v2ray-core
57 lines
1.0 KiB
Go
57 lines
1.0 KiB
Go
package signal
|
|
|
|
import (
|
|
"context"
|
|
)
|
|
|
|
func executeAndFulfill(f func() error, done chan<- error) {
|
|
err := f()
|
|
if err != nil {
|
|
done <- err
|
|
}
|
|
close(done)
|
|
}
|
|
|
|
// Execute runs a list of tasks sequentially, returns the first error encountered or nil if all tasks pass.
|
|
func Execute(tasks ...func() error) error {
|
|
for _, task := range tasks {
|
|
if err := task(); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// ExecuteAsync executes a function asynchronously and return its result.
|
|
func ExecuteAsync(f func() error) <-chan error {
|
|
done := make(chan error, 1)
|
|
go executeAndFulfill(f, done)
|
|
return done
|
|
}
|
|
|
|
func ErrorOrFinish1(ctx context.Context, c <-chan error) error {
|
|
select {
|
|
case <-ctx.Done():
|
|
return ctx.Err()
|
|
case err := <-c:
|
|
return err
|
|
}
|
|
}
|
|
|
|
func ErrorOrFinish2(ctx context.Context, c1, c2 <-chan error) error {
|
|
select {
|
|
case <-ctx.Done():
|
|
return ctx.Err()
|
|
case err := <-c1:
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return ErrorOrFinish1(ctx, c2)
|
|
case err := <-c2:
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return ErrorOrFinish1(ctx, c1)
|
|
}
|
|
}
|