add epoll and timerfd support on linux

1 files changed, 38 insertions, 0 deletions

diff --git a/std/os/linux_test.zig b/std/os/linux_test.zig
new file mode 100644
index 0000000000..265d0a17f9
--- /dev/null
+++ b/std/os/linux_test.zig
@@ -0,0 +1,38 @@
+const std = @import("std");
+const linux = std.os.linux;
+const assert = std.debug.assert;
+
+test "timer" {
+    const epoll_fd = linux.epoll_create();
+    var err = linux.getErrno(epoll_fd);
+    assert(err == 0);
+
+    const timer_fd = linux.timerfd_create(linux.CLOCK_MONOTONIC, 0);
+    assert(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(i32(timer_fd), 0, &new_time, null);
+    assert(err == 0);
+
+    var event = linux.epoll_event {
+        .events = linux.EPOLLIN | linux.EPOLLOUT | linux.EPOLLET,
+        .data = 0
+    };
+
+    err = linux.epoll_ctl(i32(epoll_fd), linux.EPOLL_CTL_ADD, i32(timer_fd), &event);
+    assert(err == 0);
+
+    const events_one: linux.epoll_event = undefined;
+    var events = []linux.epoll_event{events_one} ** 8;
+
+    err = linux.epoll_wait(i32(epoll_fd), &events[0], 8, -1);
+}