[llvm-commits] [llvm] r121160 - in /llvm/trunk: include/llvm/Support/Alarm.h lib/Support/Alarm.cpp lib/Support/CMakeLists.txt lib/Support/Unix/Alarm.inc lib/Support/Windows/Alarm.inc
Michael J. Spencer
bigcheesegs at gmail.com
Tue Dec 7 10:42:00 PST 2010
Author: mspencer
Date: Tue Dec 7 12:41:59 2010
New Revision: 121160
URL: http://llvm.org/viewvc/llvm-project?rev=121160&view=rev
Log:
Support: Remove Alarm. It is unused (via local grep and google code search).
Removed:
llvm/trunk/include/llvm/Support/Alarm.h
llvm/trunk/lib/Support/Alarm.cpp
llvm/trunk/lib/Support/Unix/Alarm.inc
llvm/trunk/lib/Support/Windows/Alarm.inc
Modified:
llvm/trunk/lib/Support/CMakeLists.txt
Removed: llvm/trunk/include/llvm/Support/Alarm.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Support/Alarm.h?rev=121159&view=auto
==============================================================================
--- llvm/trunk/include/llvm/Support/Alarm.h (original)
+++ llvm/trunk/include/llvm/Support/Alarm.h (removed)
@@ -1,51 +0,0 @@
-//===- llvm/Support/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
Removed: llvm/trunk/lib/Support/Alarm.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/Alarm.cpp?rev=121159&view=auto
==============================================================================
--- llvm/trunk/lib/Support/Alarm.cpp (original)
+++ llvm/trunk/lib/Support/Alarm.cpp (removed)
@@ -1,33 +0,0 @@
-//===- Alarm.cpp - 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 implements the Alarm functionality
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Support/Alarm.h"
-#include "llvm/Config/config.h"
-
-namespace llvm {
-using namespace sys;
-
-//===----------------------------------------------------------------------===//
-//=== WARNING: Implementation here must contain only TRULY operating system
-//=== independent code.
-//===----------------------------------------------------------------------===//
-
-}
-
-// Include the platform-specific parts of this class.
-#ifdef LLVM_ON_UNIX
-#include "Unix/Alarm.inc"
-#endif
-#ifdef LLVM_ON_WIN32
-#include "Windows/Alarm.inc"
-#endif
Modified: llvm/trunk/lib/Support/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/CMakeLists.txt?rev=121160&r1=121159&r2=121160&view=diff
==============================================================================
--- llvm/trunk/lib/Support/CMakeLists.txt (original)
+++ llvm/trunk/lib/Support/CMakeLists.txt Tue Dec 7 12:41:59 2010
@@ -54,7 +54,6 @@
regstrlcpy.c
# System
- Alarm.cpp
Atomic.cpp
Disassembler.cpp
DynamicLibrary.cpp
@@ -75,7 +74,6 @@
Threading.cpp
TimeValue.cpp
Valgrind.cpp
- Unix/Alarm.inc
Unix/Host.inc
Unix/Memory.inc
Unix/Mutex.inc
@@ -88,7 +86,6 @@
Unix/system_error.inc
Unix/ThreadLocal.inc
Unix/TimeValue.inc
- Windows/Alarm.inc
Windows/DynamicLibrary.inc
Windows/Host.inc
Windows/Memory.inc
Removed: llvm/trunk/lib/Support/Unix/Alarm.inc
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/Unix/Alarm.inc?rev=121159&view=auto
==============================================================================
--- llvm/trunk/lib/Support/Unix/Alarm.inc (original)
+++ llvm/trunk/lib/Support/Unix/Alarm.inc (removed)
@@ -1,72 +0,0 @@
-//===-- Alarm.inc - Implement Unix Alarm 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 implements the UNIX Alarm support.
-//
-//===----------------------------------------------------------------------===//
-
-#include <signal.h>
-#include <unistd.h>
-#include <cassert>
-using namespace llvm;
-
-/// AlarmCancelled - This flag is set by the SIGINT signal handler if the
-/// user presses CTRL-C.
-static volatile bool AlarmCancelled = false;
-
-/// AlarmTriggered - This flag is set by the SIGALRM signal handler if the
-/// alarm was triggered.
-static volatile bool AlarmTriggered = false;
-
-/// NestedSOI - Sanity check. Alarms cannot be nested or run in parallel.
-/// This ensures that they never do.
-static bool NestedSOI = false;
-
-static RETSIGTYPE SigIntHandler(int Sig) {
- AlarmCancelled = true;
- signal(SIGINT, SigIntHandler);
-}
-
-static RETSIGTYPE SigAlarmHandler(int Sig) {
- AlarmTriggered = true;
-}
-
-static void (*OldSigIntHandler) (int);
-
-void sys::SetupAlarm(unsigned seconds) {
- assert(!NestedSOI && "sys::SetupAlarm calls cannot be nested!");
- NestedSOI = true;
- AlarmCancelled = false;
- AlarmTriggered = false;
- ::signal(SIGALRM, SigAlarmHandler);
- OldSigIntHandler = ::signal(SIGINT, SigIntHandler);
- ::alarm(seconds);
-}
-
-void sys::TerminateAlarm() {
- assert(NestedSOI && "sys::TerminateAlarm called without sys::SetupAlarm!");
- ::alarm(0);
- ::signal(SIGALRM, SIG_DFL);
- ::signal(SIGINT, OldSigIntHandler);
- AlarmCancelled = false;
- AlarmTriggered = false;
- NestedSOI = false;
-}
-
-int sys::AlarmStatus() {
- if (AlarmCancelled)
- return -1;
- if (AlarmTriggered)
- return 1;
- return 0;
-}
-
-void sys::Sleep(unsigned n) {
- ::sleep(n);
-}
Removed: llvm/trunk/lib/Support/Windows/Alarm.inc
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/Windows/Alarm.inc?rev=121159&view=auto
==============================================================================
--- llvm/trunk/lib/Support/Windows/Alarm.inc (original)
+++ llvm/trunk/lib/Support/Windows/Alarm.inc (removed)
@@ -1,43 +0,0 @@
-//===-- Alarm.inc - Implement Win32 Alarm 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 implements the Win32 Alarm support.
-//
-//===----------------------------------------------------------------------===//
-
-#include <cassert>
-using namespace llvm;
-
-/// NestedSOI - Sanity check. Alarms cannot be nested or run in parallel.
-/// This ensures that they never do.
-static bool NestedSOI = false;
-
-void sys::SetupAlarm(unsigned seconds) {
- assert(!NestedSOI && "sys::SetupAlarm calls cannot be nested!");
- NestedSOI = true;
- // FIXME: Implement for Win32
-}
-
-void sys::TerminateAlarm() {
- assert(NestedSOI && "sys::TerminateAlarm called without sys::SetupAlarm!");
- // FIXME: Implement for Win32
- NestedSOI = false;
-}
-
-int sys::AlarmStatus() {
- // FIXME: Implement for Win32
- return 0;
-}
-
-// Don't pull in all of the Windows headers.
-extern "C" void __stdcall Sleep(unsigned long);
-
-void sys::Sleep(unsigned n) {
- ::Sleep(n*1000);
-}
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