005_timer_with_select

Go Sample Example - Timer with select

This repository demonstrates how to use timers in Go with the select statement to handle multiple concurrent events. It showcases how to manage timers alongside other asynchronous events, providing a useful mechanism to handle concurrent operations and timeouts.

📖 Information

• This example covers how to use timers within a select statement to wait for multiple events simultaneously in Go.
• It includes a demonstration of handling multiple timers, firing based on time, and managing timeouts using time.After.

💻 Code Example

package main

import (
	"fmt"
	"time"
)

func main() {

	// Timer with Select ( Use select to handle timers alongside other concurrent events )
	// You can use timers within a select statement to wait for multiple events simultaneously,
	// including the timer firing.

	timer1 := time.NewTimer(2 * time.Second) // create timer in 2 seconds
	timer2 := time.NewTimer(4 * time.Second) // create timer in 4 seconds

	select {
	case <-timer1.C:
		fmt.Println("Timer 1 fired")
	case <-timer2.C:
		fmt.Println("Timer 2 fired")
	case <-time.After(3 * time.Second):
		fmt.Println("Timeout! No timer fired in 3 seconds.")
	}
}

🏃 How to Run

1. Make sure you have Go installed. If not, you can download it from here.

2. Clone this repository:

   git clone https://github.com/Rapter1990/go_sample_examples.git

3. Navigate to the 005_timer_with_select directory:

   cd go_sample_examples/020_timers/005_timer_with_select

4. Run the Go program:

   go run 005_timer_with_select.go

📦 Output

When you run the program, you should see one of the following outputs based on the timing of events:

Timer 1 fired