A Go program that reads a message from a file and prints each letter of the message in order, demonstrating the use of goroutines, channels, and mutex locks for concurrent programming in Go.
The program consists of three main functions:
-
main: Initializes the necessary variables and starts the producer and printer goroutines. -
producer: Reads each letter of the message from the file, along with its index, and sends it to the channel. -
printer: Receives the letters from the channel and prints them in order of their indices.
The program uses a buffered channel to hold the letters and their indices, a mutex lock to synchronize access to shared variables, and a condition variable to wait for the next letter to be printed.
- Clone the repository:
git clone https://github.com/rdancer/gohello.git- Navigate to the project directory:
cd gohello
- Build, test, and run the program
make build
make test
./hello