pkg/promise/promise.go
Rafe Colton 32cc6ab501 Move Go() promise-like func from utils to pkg/promise
This is the first of two steps to break the archive package's dependence
on utils so that archive may be moved into pkg.  Also, the `Go()`
function is small, concise, and not specific to the docker internals, so
it is a good candidate for pkg.

Signed-off-by: Rafe Colton <rafael.colton@gmail.com>
2014-09-29 23:16:27 -07:00

11 lines
285 B
Go

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
}