# gsema

**Repository Path**: gomods/gsema

## Basic Information

- **Project Name**: gsema
- **Description**: 信号控制
- **Primary Language**: Go
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2023-03-30
- **Last Updated**: 2023-03-30

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# gsema
a simple goroutine limit pool.

## Installation

```
$ go get gitee.com/gomods/gsema
```

## Usage

```
package main
import (
	"fmt"
	"time"
	"gitee.com/gomods/gsema"
)
var sema = gsema.NewSemaphore(3)
func main() {
	userCount := 10
	for i := 0; i < userCount; i++ {
		go Read(i)
	}
	sema.Wait()
}
func Read(i int) {
	defer sema.Done()
	sema.Add(1)
	fmt.Printf("go func: %d, time: %d\n", i, time.Now().Unix())
	time.Sleep(time.Second)
}
```

## Output

```
...
go func: 0, time: 1547880322
go func: 2, time: 1547880322
go func: 1, time: 1547880322
go func: 3, time: 1547880323
go func: 4, time: 1547880323
go func: 5, time: 1547880323
go func: 7, time: 1547880324
go func: 8, time: 1547880324
go func: 6, time: 1547880324
go func: 9, time: 1547880325
```