Add some comments explaining what MVT and EVT are, and how they differ.

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

diff --git a/include/llvm/System/Signals.h b/include/llvm/System/Signals.h
index 9f4c00a488d093bcf99adcf72b6e271c737ecce2..7f1c87c3d55a3659a734c5b98e26e2f6516dfdfa 100644 (file)
--- a/include/llvm/System/Signals.h
+++ b/include/llvm/System/Signals.h
@@ -1,10 +1,10 @@
 //===- llvm/System/Signals.h - Signal Handling support ----------*- C++ -*-===//
-// 
+//
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-// 
+// 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
@@ -18,23 +18,42 @@
 #include "llvm/System/Path.h"
 
 namespace llvm {
+namespace sys {
+
+  /// This function runs all the registered interrupt handlers, including the
+  /// removal of files registered by RemoveFileOnSignal.
+  void RunInterruptHandlers();
 
-  /// This function registers signal handlers to ensure that if a signal gets 
+  /// 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.
-  void RemoveFileOnSignal(const std::string &Filename);
+  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.
-  void RemoveDirectoryOnSignal(const llvm::sys::Path& path);
+  /// This function removes a file from the list of files to be removed on
+  /// signal delivery.
+  void DontRemoveFileOnSignal(const Path &Filename);
 
-  /// When an error signal (such as SIBABRT or SIGSEGV) is delivered to the 
+  /// 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();
 
+  /// AddSignalHandler - Add a function to be called when an abort/kill signal
+  /// is delivered to the process.  The handler can have a cookie passed to it
+  /// to identify what instance of the handler it is.
+  void AddSignalHandler(void (*FnPtr)(void *), void *Cookie);
+
+  /// 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
 
 #endif