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coordinator.go
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coordinator.go
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package executor
import (
"errors"
"fmt"
"log"
"strings"
"sync"
"github.com/smartystreets/goconvey/web/server/contract"
)
type concurrentCoordinator struct {
batchSize int
queue chan *contract.Package
folders []*contract.Package
shell contract.Shell
waiter sync.WaitGroup
}
func (self *concurrentCoordinator) ExecuteConcurrently() {
self.enlistWorkers()
self.scheduleTasks()
self.awaitCompletion()
}
func (self *concurrentCoordinator) enlistWorkers() {
for i := 0; i < self.batchSize; i++ {
self.waiter.Add(1)
go self.worker(i)
}
}
func (self *concurrentCoordinator) worker(id int) {
for folder := range self.queue {
packageName := strings.Replace(folder.Name, "\\", "/", -1)
if !folder.Active() {
log.Printf("Skipping concurrent execution: %s\n", packageName)
continue
}
if folder.HasImportCycle {
message := fmt.Sprintf("can't load package: import cycle not allowed\npackage %s\n\timports %s", packageName, packageName)
log.Println(message)
folder.Output, folder.Error = message, errors.New(message)
} else {
log.Printf("Executing concurrent tests: %s\n", packageName)
folder.Output, folder.Error = self.shell.GoTest(folder.Path, packageName, folder.BuildTags, folder.TestArguments)
}
}
self.waiter.Done()
}
func (self *concurrentCoordinator) scheduleTasks() {
for _, folder := range self.folders {
self.queue <- folder
}
}
func (self *concurrentCoordinator) awaitCompletion() {
close(self.queue)
self.waiter.Wait()
}
func newConcurrentCoordinator(folders []*contract.Package, batchSize int, shell contract.Shell) *concurrentCoordinator {
self := new(concurrentCoordinator)
self.queue = make(chan *contract.Package)
self.folders = folders
self.batchSize = batchSize
self.shell = shell
return self
}