Zig 0.17.0-dev (Split by item)

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fallbackSeedPosix

Threaded.fallbackSeedPosix

fn fallbackSeedPosix(seed: *[Csprng.seed_len]u8) void

File

lib/std/Io/Threaded.zig:17174

Code

fn fallbackSeedPosix(seed: *[Csprng.seed_len]u8) void {
    std.mem.writeInt(posix.pid_t, seed[0..@sizeOf(posix.pid_t)], posix.system.getpid(), .native);
    const i_1 = @sizeOf(posix.pid_t);

    var ts: posix.timespec = undefined;
    const Sec = @TypeOf(ts.sec);
    const Nsec = @TypeOf(ts.nsec);
    const i_2 = i_1 + @sizeOf(Sec);
    switch (posix.errno(posix.system.clock_gettime(.REALTIME, &ts))) {
        .SUCCESS => {
            std.mem.writeInt(Sec, seed[i_1..][0..@sizeOf(Sec)], ts.sec, .native);
            std.mem.writeInt(Nsec, seed[i_2..][0..@sizeOf(Nsec)], ts.nsec, .native);
        },
        else => {},
    }
}