std::thread - スレッド管理

pthreadベースのスレッド生成・管理モジュール。

対応バックエンド: Native (LLVM) のみ

最終更新: 2026-02-08

基本的な使い方

import std::thread::spawn;
import std::thread::join;
import std::thread::sleep_ms;
import std::io::println;

void* worker(void* arg) {
    println("Worker started");
    sleep_ms(100);
    println("Worker done");
    return 0 as void*;
}

int main() {
    ulong handle = spawn(worker as void*);
    join(handle);
    println("All done");
    return 0;
}

引数付きスレッド

import std::thread::spawn_with_arg;
import std::thread::join;
import std::io::println;

void* compute(void* arg) {
    int n = arg as int;
    println("Computing: {n}");
    return (n * 2) as void*;
}

int main() {
    ulong t = spawn_with_arg(compute as void*, 21 as void*);
    int result = join(t);
    println("Result: {result}");  // 42
    return 0;
}

複数スレッドの一括待機

import std::thread::spawn;
import std::thread::join_all;

int main() {
    ulong handles[4];
    for (int i = 0; i < 4; i++) {
        handles[i] = spawn(worker as void*);
    }
    join_all(handles as ulong*, 4);
    return 0;
}

API一覧

関連: Mutex · Channel · Atomic