00001 /******************************************************************************* 00002 * Copyright (C) 2004 Vintela, Inc. All rights reserved. 00003 * Copyright (C) 2005 Novell, Inc. All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions are met: 00007 * 00008 * - Redistributions of source code must retain the above copyright notice, 00009 * this list of conditions and the following disclaimer. 00010 * 00011 * - Redistributions in binary form must reproduce the above copyright notice, 00012 * this list of conditions and the following disclaimer in the documentation 00013 * and/or other materials provided with the distribution. 00014 * 00015 * - Neither the name of Vintela, Inc., Novell, Inc., nor the names of its 00016 * contributors may be used to endorse or promote products derived from this 00017 * software without specific prior written permission. 00018 * 00019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' 00020 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00021 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00022 * ARE DISCLAIMED. IN NO EVENT SHALL Vintela, Inc., Novell, Inc., OR THE 00023 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00024 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 00025 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 00026 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 00027 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 00028 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 00029 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00030 *******************************************************************************/ 00031 00032 00037 #ifndef BLOCXX_SIGNALSCOPE_HPP_INCLUDE_GUARD_ 00038 #define BLOCXX_SIGNALSCOPE_HPP_INCLUDE_GUARD_ 00039 #include "blocxx/BLOCXX_config.h" 00040 #include <signal.h> 00041 00042 // The classes and functions defined in this file are not meant for general 00043 // use, they are internal implementation details. They may change at any time. 00044 00045 namespace BLOCXX_NAMESPACE 00046 { 00047 00048 const int BLOCXX_SIGSEGV = SIGSEGV; 00049 const int BLOCXX_SIGABRT = SIGABRT; 00050 #ifdef SIGBUS // NetWare doesn't have this signal 00051 const int BLOCXX_SIGBUS = SIGBUS; 00052 #endif 00053 const int BLOCXX_SIGFPE = SIGFPE; 00054 00055 extern "C" { 00056 typedef void (*sighandler_t)(int); 00057 } 00058 00059 class BLOCXX_COMMON_API SignalScope 00060 { 00061 public: 00062 SignalScope( int sig, sighandler_t handler ) 00063 : m_sig( sig ) 00064 { 00065 #ifndef BLOCXX_WIN32 00066 struct sigaction saNew; 00067 saNew.sa_handler = handler; 00068 sigemptyset(&saNew.sa_mask); 00069 saNew.sa_flags = 0; 00070 sigaction(m_sig, &saNew, &m_oldHandler); 00071 #endif 00072 } 00073 ~SignalScope() 00074 { 00075 #ifndef BLOCXX_WIN32 00076 sigaction(m_sig, &m_oldHandler, 0); 00077 #endif 00078 } 00079 private: 00080 SignalScope(const SignalScope&); 00081 const SignalScope& operator=(const SignalScope&); 00082 int m_sig; 00083 #ifndef BLOCXX_WIN32 00084 struct sigaction m_oldHandler; 00085 #endif 00086 }; 00087 00088 } // end namespace BLOCXX_NAMESPACE 00089 00090 #endif