/usr/share/gocode/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/promise/promise.go is in golang-github-fsouza-go-dockerclient-dev 0.0+git20150905-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 | package promise
// Go is a basic promise implementation: it wraps calls a function in a goroutine,
// and returns a channel which will later return the function's return value.
func Go(f func() error) chan error {
ch := make(chan error, 1)
go func() {
ch <- f()
}()
return ch
}
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