Worker Pools in GDScript
Our example demonstrates how to implement a worker pool using threads and queues in GDScript.
In this example, we’re using GDScript’s Thread
class to create a pool of worker threads. Here’s how it works:
We define the number of jobs and workers in the
num_jobs
andnum_workers
variables.In the
_ready()
function, which is called when the script is initialized:- We create the jobs and add them to the
jobs
array. - We start the worker threads using a
for
loop. - We wait for all jobs to complete by checking the size of the
results
array.
- We create the jobs and add them to the
The
worker
function is where each thread performs its work:- It continuously checks for jobs in the
jobs
array. - When it finds a job, it simulates work by waiting for a second using
OS.delay_msec(1000)
. - After completing a job, it adds the result to the
results
array.
- It continuously checks for jobs in the
This implementation mimics the behavior of the original example, with some adaptations for GDScript:
- Instead of channels, we use arrays (
jobs
andresults
) with thread-safe operations. - We use
Thread.new()
to create new threads, similar to goroutines. OS.delay_msec()
is used to simulate work, equivalent totime.Sleep()
.
When you run this script, you should see output similar to this:
Note that the exact order of execution may vary due to the nature of concurrent programming.
This example demonstrates how to implement a simple worker pool pattern in GDScript, allowing for concurrent execution of tasks.