77 lines
1.7 KiB
Markdown
77 lines
1.7 KiB
Markdown
# Golang Concurrency Manager [](https://travis-ci.com/zenthangplus/goccm)
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Golang Concurrency Manager package limits the number of goroutines that are allowed to run concurrently.
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### Installation
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Run the following command to install this package:
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```
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$ go get -u github.com/zenthangplus/goccm
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```
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### Example
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```go
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package main
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import (
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"fmt"
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"github.com/zenthangplus/goccm"
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"time"
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)
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func main() {
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// Limit 3 goroutines to run concurrently.
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c := goccm.New(3)
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for i := 1; i <= 10; i++ {
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// This function has to call before any goroutine
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c.Wait()
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go func(i int) {
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fmt.Printf("Job %d is running\n", i)
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time.Sleep(2 * time.Second)
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// This function has to when a goroutine has finished
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// Or you can use `defer c.Done()` at the top of goroutine.
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c.Done()
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}(i)
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}
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// This function has to call to ensure all goroutines have finished
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// after close the main program.
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c.WaitAllDone()
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}
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```
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### List of supported functions
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```go
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package main
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import "github.com/zenthangplus/goccm"
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func main() {
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// Create the concurrency manager
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// The first argument is the maximum number of goroutines to run concurrently.
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c := goccm.New(10)
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// Wait until a slot is available for the new goroutine.
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c.Wait()
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// Mark a goroutine as finished
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c.Done()
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// Wait for all goroutines are done
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c.WaitAllDone()
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// Close the manager manually
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c.Close()
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// Returns the number of goroutines which are running
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c.RunningCount()
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}
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```
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