Zig 0.17.0-dev (Split by item)

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random

Dispatch.random

fn random(userdata: ?*anyopaque, buffer: []u8) void

File

lib/std/Io/Dispatch.zig:4774

Code

fn random(userdata: ?*anyopaque, buffer: []u8) void {
    const ev: *Evented = @ptrCast(@alignCast(userdata));
    if (buffer.len == 0) return;
    const thread: *Thread = .current();
    var rand: Random = .{ .evented = ev, .thread = thread, .buffer = buffer };
    thread.seed_csprng.once(&rand, &Random.seed);
    if (rand.buffer.len > 0) thread.csprng.rng.fill(buffer);
}