lib/Support/Signals.cpp

   1 //===- Signals.cpp - Signal Handling support --------------------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file defines some helpful functions for dealing with the possibility of
  11 // Unix signals occurring while your program is running.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #include "llvm/Config/config.h"
  16 #include "llvm/Support/ManagedStatic.h"
  17 #include "llvm/Support/Signals.h"
  18
  19 #include <vector>
  20
  21 namespace llvm {
  22 using namespace sys;
  23
  24 //===----------------------------------------------------------------------===//
  25 //=== WARNING: Implementation here must contain only TRULY operating system
  26 //===          independent code.
  27 //===----------------------------------------------------------------------===//
  28
  29 static ManagedStatic<std::vector<std::pair<void (*)(void *), void *>>>
  30     CallBacksToRun;
  31 void sys::RunSignalHandlers() {
  32   if (!CallBacksToRun.isConstructed())
  33     return;
  34   for (auto &I : *CallBacksToRun)
  35     I.first(I.second);
  36   CallBacksToRun->clear();
  37 }
  38 }
  39
  40 // Include the platform-specific parts of this class.
  41 #ifdef LLVM_ON_UNIX
  42 #include "Unix/Signals.inc"
  43 #endif
  44 #ifdef LLVM_ON_WIN32
  45 #include "Windows/Signals.inc"
  46 #endif