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-rw-r--r--include/llvm/System/Alarm.h51
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diff --git a/include/llvm/System/Alarm.h b/include/llvm/System/Alarm.h
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--- a/include/llvm/System/Alarm.h
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-//===- llvm/System/Alarm.h - Alarm Generation support ----------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file provides an operating system independent interface to alarm(2)
-// type functionality. The Alarm class allows a one-shot alarm to be set up
-// at some number of seconds in the future. When the alarm triggers, a method
-// is called to process the event
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_SYSTEM_ALARM_H
-#define LLVM_SYSTEM_ALARM_H
-
-namespace llvm {
-namespace sys {
-
- /// This function registers an alarm to trigger some number of \p seconds in
- /// the future. When that time arrives, the AlarmStatus function will begin
- /// to return 1 instead of 0. The user must poll the status of the alarm by
- /// making occasional calls to AlarmStatus. If the user sends an interrupt
- /// signal, AlarmStatus will begin returning -1, even if the alarm event
- /// occurred.
- /// @returns nothing
- void SetupAlarm(
- unsigned seconds ///< Number of seconds in future when alarm arrives
- );
-
- /// This function terminates the alarm previously set up
- /// @returns nothing
- void TerminateAlarm();
-
- /// This function acquires the status of the alarm.
- /// @returns -1=cancelled, 0=untriggered, 1=triggered
- int AlarmStatus();
-
- /// Sleep for n seconds. Warning: mixing calls to Sleep() and other *Alarm
- /// calls may be a bad idea on some platforms (source: Linux man page).
- /// @returns nothing.
- void Sleep(unsigned n);
-
-
-} // End sys namespace
-} // End llvm namespace
-
-#endif