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const std = @import("../../std.zig");
const builtin = @import("builtin");
const linux = std.os.linux;
const mem = std.mem;
const elf = std.elf;
const expect = std.testing.expect;
test "getpid" {
expect(linux.getpid() != 0);
}
test "timer" {
const epoll_fd = linux.epoll_create();
var err: usize = linux.getErrno(epoll_fd);
expect(err == 0);
const timer_fd = linux.timerfd_create(linux.CLOCK_MONOTONIC, 0);
expect(linux.getErrno(timer_fd) == 0);
const time_interval = linux.timespec{
.tv_sec = 0,
.tv_nsec = 2000000,
};
const new_time = linux.itimerspec{
.it_interval = time_interval,
.it_value = time_interval,
};
err = linux.timerfd_settime(@intCast(i32, timer_fd), 0, &new_time, null);
expect(err == 0);
var event = linux.epoll_event{
.events = linux.EPOLLIN | linux.EPOLLOUT | linux.EPOLLET,
.data = linux.epoll_data{ .ptr = 0 },
};
err = linux.epoll_ctl(@intCast(i32, epoll_fd), linux.EPOLL_CTL_ADD, @intCast(i32, timer_fd), &event);
expect(err == 0);
const events_one: linux.epoll_event = undefined;
var events = [_]linux.epoll_event{events_one} ** 8;
// TODO implicit cast from *[N]T to [*]T
err = linux.epoll_wait(@intCast(i32, epoll_fd), @ptrCast([*]linux.epoll_event, &events), 8, -1);
}
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