Ruby - Pause Execution of Thread Using sleep

1. Introduction

In concurrent programming, there are occasions when we need to deliberately pause or delay the execution of a thread. In Ruby, this can be efficiently done using the sleep method. This blog post aims to illustrate the usage and importance of the sleep method in controlling thread execution in Ruby.

The sleep method in Ruby is used to pause the execution of the current thread for a specified number of seconds. This can be particularly useful in simulating real-world scenarios, like waiting for a resource to become available or slowing down execution to reduce CPU usage.

2. Program Steps

1. Start the main program.

2. Print an initial message indicating the start of a task.

3. Use the sleep method to pause the execution for a specified duration.

4. Print a message post-sleep, indicating the resumption of tasks.

3. Code Program

# Step 1: Starting the main program
# Step 2: Print an initial message
puts "Starting a time-consuming task..."
# Step 3: Pause execution for 5 seconds
sleep(5)
# Step 4: Print post-sleep message
puts "Task completed after waiting."

Output:

Starting a time-consuming task...
Task completed after waiting.

Explanation:

1. Starting a time-consuming task...: This message indicates the start of some operation or task in our program.

2. sleep(5): This is where we invoke the sleep method. The argument 5 indicates that we want to pause the execution of the current thread for 5 seconds. During this time, the program essentially does nothing and waits.

3. Task completed after waiting.: This message is printed after the sleep duration has passed, indicating that the program has resumed its operation.

4. The sleep method can be very beneficial, especially in multi-threaded applications where we might need to provide other threads a chance to execute or when we need to introduce a delay for synchronization or simulation purposes.

By leveraging the sleep method, Ruby developers can introduce controlled pauses in their applications, aiding in debugging, synchronization, and simulation of real-world scenarios.


Related Ruby Examples:

Ruby - Print Hello World Ruby - Get User Input Ruby - Display Current Date and Time Ruby - Print Environment Variables Ruby - Explain Variable Scopes Ruby - Calculate the Sum of Two Numbers Ruby - Find the Factorial of a Number Ruby - Check If a Number is Even or Odd Ruby - Generate a Random Number Ruby - Implement the Pythagorean Theorem Ruby - Calculate the Square Root of a Number Ruby - Check if a Number is Prime Ruby - Find the Greatest Common Divisor (GCD) Ruby - Check Leap Year Ruby - Print Power of a Number Ruby - Print Fibonacci Series Ruby - Count the Number of Digits in a Number Ruby - Unary operators Ruby - Arithmetic operators Ruby - Bitwise operators Ruby - Logical operators Ruby - Ternary operator Ruby - Assignment operators Ruby - Comparison operators Ruby - Convert a String to Uppercase and Lowercase Ruby - Reverse a String Ruby - Count Vowels in a String Ruby - Find the Length of a String Ruby - Replace Substrings Ruby - Split a String into Words Ruby - Join an Array into a String Ruby - Check if a String Starts with Another String Ruby - Check if a String is a Palindrome Ruby - Find the Length of an Array Ruby - Find the Maximum Element in an Array Ruby - Find the Minimum Element in an Array Ruby - Search for an Element in an Array Ruby - Sort an Array Ruby - Reverse an Array Ruby - Array Create, Add, and Remove Example Ruby - Merge Two Arrays Ruby - Create and Use a Hash Ruby - Find the Size of a Hash Ruby - Check if a Key Exists in a Hash Ruby - Merge Two Hashes Ruby - Iterate Over a Hash Ruby - If-Else Condition Ruby - Case Statement Ruby - While Loop Ruby - For Loop Ruby - OOPs Concepts Ruby - Define and Instantiate a Simple Class Ruby - Instance Variables Ruby - Class Methods and Variables Ruby - Inheritance Example Ruby - Polymorphism Example Ruby - Abstraction Example Ruby - Modules and Mixins Ruby - Encapsulation Example Ruby - Association Example Ruby - Composition Example Ruby - Aggregation Example Ruby - method_missing Example Ruby - define_method Example Ruby - Create Custom Exception Class Ruby - Create a New File and Write Content Ruby - Open and Read from a File Ruby - Append Data to an Existing File Ruby - Delete a File Ruby - Different File Modes Ruby - Read a File Line by Line Ruby - Create a New Directory Ruby - Rename a Directory Ruby - Delete a Directory Ruby - Check if a File Exists Ruby - Get a File Size Ruby - Check if a Path is a File or a Directory Ruby - Get File Modification Time Ruby - Count Number of Words in a File Ruby - Count Occurrences of a Specific Word in a File Ruby - Compress a File using Gzip Ruby - Extract a Gzip Compressed File Ruby - Create a Tar Archive Ruby - Handle Division by Zero Exception Ruby - Handle NoMethodError by Using begin-rescue-end Ruby - Handle Custom Exceptions using rescue Ruby - Handle Custom Exceptions using rescue Ruby - Handle Multiple Exceptions Using Multiple rescue Blocks Ruby - Print the Backtrace of an Exception Ruby - Define Global Exception Handling using at_exit

Ruby Tutorials

Ruby Hash Tutorial Ruby String Tutorial Ruby Array Tutorial Ruby - Match a Pattern in a String Ruby - map Function Example Ruby - reduce Function Example Ruby - select Function Example Ruby - Date and Time Example Ruby - Create and Execute a Basic Thread Ruby - Main Thread and Sub-threads Ruby - Pause Execution of Thread Using sleep Ruby - Terminate a Thread Using Thread.kill Ruby - Check Status of a Thread Using alive? Ruby - Thread Priority Example Ruby - Use Thread.pass for Thread Scheduling Ruby - Thread Local Variables Ruby Convert String to Hash Ruby Convert String to JSON Ruby Convert String to Integer Ruby Convert String to Array Ruby Convert String to Date Ruby Convert String to CamelCase Ruby Convert String to Boolean Ruby Convert String to Float Ruby Convert String to DateTime Ruby Convert Number to String Ruby Convert Number to Binary Ruby Convert Number to Boolean Ruby Convert List to Set Ruby Convert List to String Ruby Convert List to Hash Ruby Convert List to Map Ruby Convert Array to List Ruby Convert Array to Hash Ruby Convert Array to Hash With Index as Key Ruby Convert Array to Set Ruby Convert Array to String Comma Separated Ruby Convert Array of Strings to Integers Ruby Convert Array to JSON Ruby Convert Array of Hashes to JSON Ruby Convert Hash to JSON Ruby Convert Hash to String Ruby Convert Hash to Array Convert Hash Keys to Strings Ruby Convert Date to DateTime Ruby Convert Date to Epoch Ruby Convert Date to TimeStamp Ruby Convert Date to Milliseconds

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