Documentation
¶
Overview ¶
Package run implements the "plz run" command.
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func Parallel ¶
func Parallel(state *core.BuildState, labels []core.BuildLabel, args []string, numTasks int, quiet, env bool) int
Parallel runs a series of targets in parallel. Returns true if all were successful.
func Run ¶
func Run(state *core.BuildState, label core.BuildLabel, args []string, env bool)
Run implements the running part of 'plz run'.
func Sequential ¶
func Sequential(state *core.BuildState, labels []core.BuildLabel, args []string, quiet, env bool) int
Sequential runs a series of targets sequentially. Returns true if all were successful.
Types ¶
type GoroutinePool ¶
type GoroutinePool struct {
// contains filtered or unexported fields
}
A GoroutinePool manages a set of worker goroutines, analogous to a traditional threadpool. Obviously in classic Go you do not need one, but this can be useful when you have external resources being driven by it that can't scale like goroutines (for example processes)
func NewGoroutinePool ¶
func NewGoroutinePool(capacity int) *GoroutinePool
NewGoroutinePool allocates a new goroutine pool with the given maximum capacity (i.e. number of goroutines).
func (*GoroutinePool) Submit ¶
func (pool *GoroutinePool) Submit(f func())
Submit submits a new work unit to the pool. It will be handled once a worker is free. Note that we only accept a niladic function, and do not provide an indication of when it completes, so you would typically wrap the call you want in an anonymous function, i.e.
var wg sync.WaitGroup
wg.Add(1)
pool.Submit(func() {
callMyRealFunction(someParam)
wg.Done()
})
wg.Wait()
Hint: ensure you are careful about closing over loop variables, Go closes over them by
reference not value so you may need to wrap them again (or use SubmitParam instead).
No particular guarantee is made about whether this function will block or not.
func (*GoroutinePool) SubmitParam ¶
func (pool *GoroutinePool) SubmitParam(f func(interface{}), p interface{})
SubmitParam is similar to Submit but allows submitting a single parameter with the function. This is often convenient to close over loop variables etc.
Source Files