62 lines
1.4 KiB
Standard ML
Executable file
62 lines
1.4 KiB
Standard ML
Executable file
#!/usr/bin/env fun
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/*
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* This file is part of the Fun programming language.
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* https://fun-lang.xyz/
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*
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* Copyright 2025 Johannes Findeisen <you@hanez.org>
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* Licensed under the terms of the Apache-2.0 license.
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* https://opensource.org/license/apache-2-0
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*
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* Added: 2025-09-30
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*/
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// Threading demo for Fun
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// Run without installing:
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// FUN_LIB_DIR="$(pwd)/lib" ./build/fun examples/threads_demo.fun
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// (Windows PowerShell) $env:FUN_LIB_DIR="$PWD\lib"; .\build\fun.exe examples\threads_demo.fun
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print("=== Threads demo ===")
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// A worker function that does some work and returns a value
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fun square(n)
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// simulate work
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sleep(100)
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return n * n
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// Spawn several workers
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ids = []
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for x in [1, 2, 3, 4, 5]
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id = thread_spawn(square, x) // pass a single argument
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push(ids, id)
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print("spawned thread id=" + to_string(id) + " for x=" + to_string(x))
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print("Joining threads...")
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results = []
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for id in ids
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r = thread_join(id)
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push(results, r)
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print("Squares: " + to_string(results))
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// Example: pass multiple args via array
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fun add3(a, b, c)
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return a + b + c
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tid = thread_spawn(add3, [10, 20, 30])
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print("join add3 -> " + to_string(thread_join(tid)))
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print("=== Threads demo done ===")
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/* Expected output:
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=== Threads demo ===
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spawned thread id=1 for x=1
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spawned thread id=2 for x=2
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spawned thread id=3 for x=3
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spawned thread id=4 for x=4
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spawned thread id=5 for x=5
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Joining threads...
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Squares: [array n=5]
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join add3 -> 60
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=== Threads demo done ===
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*/
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