Add "empty()" method to sys::Path and remove unnecessary whitespace.

[oota-llvm.git] / include / llvm / System / Signals.h

diff --git a/include/llvm/System/Signals.h b/include/llvm/System/Signals.h
index 34e55b651f76b07ef848832b097b4210f45a5d2e..416a4c8f9da680c9253d57abc1f53494f0c267df 100644 (file)
--- a/include/llvm/System/Signals.h
+++ b/include/llvm/System/Signals.h
@@ -1,18 +1,55 @@
-//===- Support/Signals.h - Signal Handling support ---------------*- C++ -*--=//
+//===- llvm/System/Signals.h - Signal Handling 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 defines some helpful functions for dealing with the possibility of
 // unix signals occuring while your program is running.
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef SUPPORT_SIGNALS_H
-#define SUPPORT_SIGNALS_H
+#ifndef LLVM_SYSTEM_SIGNALS_H
+#define LLVM_SYSTEM_SIGNALS_H
 
-#include <string>
+#include "llvm/System/Path.h"
+#include "llvm/System/IncludeFile.h"
 
-// RemoveFileOnSignal - This function registers signal handlers to ensure that
-// if a signal gets delivered that the named file is removed.
-//
-void RemoveFileOnSignal(const std::string &Filename);
+namespace llvm {
+namespace sys {
+
+  /// This function registers signal handlers to ensure that if a signal gets
+  /// delivered that the named file is removed.
+  /// @brief Remove a file if a fatal signal occurs.
+  bool RemoveFileOnSignal(const Path &Filename, std::string* ErrMsg = 0);
+
+  /// This function registers a signal handler to ensure that if a fatal signal
+  /// gets delivered to the process that the named directory and all its
+  /// contents are removed.
+  /// @brief Remove a directory if a fatal signal occurs.
+  bool RemoveDirectoryOnSignal(const Path& path, std::string* ErrMsg = 0);
+
+  /// When an error signal (such as SIBABRT or SIGSEGV) is delivered to the
+  /// process, print a stack trace and then exit.
+  /// @brief Print a stack trace if a fatal signal occurs.
+  void PrintStackTraceOnErrorSignal();
+
+  /// This function registers a function to be called when the user "interrupts"
+  /// the program (typically by pressing ctrl-c).  When the user interrupts the
+  /// program, the specified interrupt function is called instead of the program
+  /// being killed, and the interrupt function automatically disabled.  Note
+  /// that interrupt functions are not allowed to call any non-reentrant
+  /// functions.  An null interrupt function pointer disables the current
+  /// installed function.  Note also that the handler may be executed on a
+  /// different thread on some platforms.
+  /// @brief Register a function to be called when ctrl-c is pressed.
+  void SetInterruptFunction(void (*IF)());
+} // End sys namespace
+} // End llvm namespace
+
+FORCE_DEFINING_FILE_TO_BE_LINKED(SystemSignals)
 
 #endif