Kernel+LibC+UE: Implement sleep() via sys$clock_nanosleep()

This doesn't need to be its own syscall either. :^)

1 files changed, 0 insertions, 45 deletions

diff --git a/Kernel/Syscalls/sleep.cpp b/Kernel/Syscalls/sleep.cpp
deleted file mode 100644
index 10ddb05e05..0000000000
--- a/Kernel/Syscalls/sleep.cpp
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- *    list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <Kernel/Process.h>
-#include <Kernel/Time/TimeManagement.h>
-
-namespace Kernel {
-
-int Process::sys$sleep(unsigned seconds)
-{
-    REQUIRE_PROMISE(stdio);
-    if (!seconds)
-        return 0;
-    u64 wakeup_time = Thread::current()->sleep(seconds * TimeManagement::the().ticks_per_second());
-    if (wakeup_time > g_uptime) {
-        u32 ticks_left_until_original_wakeup_time = wakeup_time - g_uptime;
-        return ticks_left_until_original_wakeup_time / TimeManagement::the().ticks_per_second();
-    }
-    return 0;
-}
-
-}