lang/zig/tls.zig


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

const assert = std.debug.assert;
const std = @import("std");
const spawn = std.Thread.spawn;

threadlocal var x: i32 = 1234;

test "thread local storage" {
    const thread1 = try spawn({}, testTls);
    defer thread1.wait();

    const thread2 = try spawn({}, testTls);
    defer thread2.wait();

    // Main thread
    testTls({});
}

fn testTls(context: void) void {
    assert(x == 1234);
    x += 1;
    assert(x == 1235);
}