Changes in directory llvm/include/llvm/System:
Alarm.h added (r1.1)
---
Log message:
Implement a generic polled Alarm function. This merely removes the system
dependent portion of the lib/Support/SlowOperationTimer code into the
lib/System implementation where it can be ported to different platforms.
---
Diffs of the changes: (+42 -0)
Alarm.h | 42 ++++++++++++++++++++++++++++++++++++++++++
1 files changed, 42 insertions(+)
Index: llvm/include/llvm/System/Alarm.h
diff -c /dev/null llvm/include/llvm/System/Alarm.h:1.1
*** /dev/null Wed Dec 21 21:23:56 2005
--- llvm/include/llvm/System/Alarm.h Wed Dec 21 21:23:46 2005
***************
*** 0 ****
--- 1,42 ----
+ //===- llvm/System/Alarm.h - Alarm Generation support ----------*- C++
-*-===//
+ //
+ // The LLVM Compiler Infrastructure
+ //
+ // This file was developed by Reid Spencer and 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 \p callback is called. You can
+ /// only call this once. Each time
+ /// @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();
+
+ } // End sys namespace
+ } // End llvm namespace
+
+ #endif
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