Context in Scilab
Here’s the translation of the Go code to Scilab, along with explanations in Markdown format suitable for Hugo:
In this example, we’ll explore how to handle HTTP requests and use a concept similar to context in Scilab. While Scilab doesn’t have built-in HTTP server capabilities or a direct equivalent to Go’s context, we can simulate similar behavior using Scilab’s features.
// Import necessary modules
exec('httpd.sci', -1); // Assuming we have a custom HTTP server implementation
// Define the hello function to handle requests
function hello(request)
disp("server: hello handler started");
// Simulate work being done
tic();
while (toc() < 10)
// Check if the request has been cancelled
if (request.cancelled)
disp("server: request cancelled");
return %f;
end
sleep(100);
end
disp("server: hello handler ended");
return "hello\n";
endfunction
// Main function to set up and start the server
function main()
// Register our handler for the "/hello" route
httpd_register("/hello", hello);
// Start the server
httpd_serve(8090);
endfunction
// Run the main function
main();
In this Scilab version:
We assume the existence of a custom HTTP server implementation (
httpd.sci
) that provides basic functionality similar to Go’shttp
package.The
hello
function simulates handling a request. It waits for 10 seconds before responding, checking periodically if the request has been cancelled.Instead of using a context, we use a simple
cancelled
flag in the request object to simulate cancellation.The
main
function sets up the server by registering the handler and starting it on port 8090.
To run this server:
$ scilab -nw -f context.sce
To simulate a client request and cancellation:
$ curl localhost:8090/hello &
$ kill %1
You should see output similar to:
server: hello handler started
server: request cancelled
server: hello handler ended
This example demonstrates how to handle long-running requests and cancellation in Scilab, even though it doesn’t have built-in HTTP server capabilities or a direct equivalent to Go’s context. The concepts of handling requests, simulating work, and responding to cancellation are preserved, adapted to Scilab’s capabilities.