const std = @import("std");

const SIGUSR1: c_int = 10;

const O_RDWR: c_int = 2;
const O_CREAT: c_int = 64;

pub const PROT_WRITE: c_int = 2;
pub const MAP_SHARED: c_int = 0x0001;

// IMPORTANT: shared memory object names must begin with / and contain no other slashes!
var SHARED_BUFFER: []u8 = undefined;

pub fn setSharedBuffer(ptr: [*]u8, length: usize) callconv(.C) usize {
    SHARED_BUFFER = ptr[0..length];

    // the rust side expects that a pointer is returned
    return 0;
}

pub fn expectFailedStart() callconv(.C) [*]u8 {
    return SHARED_BUFFER.ptr;
}