mirror of https://github.com/v2ray/v2ray-core
47 lines
808 B
Go
47 lines
808 B
Go
package signal
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import (
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"context"
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)
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func executeAndFulfill(f func() error, done chan<- error) {
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err := f()
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if err != nil {
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done <- err
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}
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close(done)
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}
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// ExecuteAsync executes a function asychrously and return its result.
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func ExecuteAsync(f func() error) <-chan error {
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done := make(chan error, 1)
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go executeAndFulfill(f, done)
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return done
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}
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func ErrorOrFinish1(ctx context.Context, c <-chan error) error {
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select {
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case <-ctx.Done():
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return ctx.Err()
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case err := <-c:
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return err
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}
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}
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func ErrorOrFinish2(ctx context.Context, c1, c2 <-chan error) error {
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select {
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case <-ctx.Done():
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return ctx.Err()
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case err := <-c1:
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if err != nil {
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return err
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}
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return ErrorOrFinish1(ctx, c2)
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case err := <-c2:
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if err != nil {
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return err
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}
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return ErrorOrFinish1(ctx, c1)
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}
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}
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