blocxx
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00001 /******************************************************************************* 00002 * Copyright (C) 2005, Vintela, Inc. All rights reserved. 00003 * Copyright (C) 2006, 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 * * Redistributions in binary form must reproduce the above copyright 00011 * notice, this list of conditions and the following disclaimer in the 00012 * documentation and/or other materials provided with the distribution. 00013 * * Neither the name of 00014 * Vintela, Inc., 00015 * nor Novell, Inc., 00016 * nor the names of its contributors or employees may be used to 00017 * endorse or promote products derived from this software without 00018 * specific prior written permission. 00019 * 00020 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00021 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00022 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00023 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 00024 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00025 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00026 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00027 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00028 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00029 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00030 * POSSIBILITY OF SUCH DAMAGE. 00031 *******************************************************************************/ 00032 00033 00038 #ifndef BLOCXX_SIGNALSCOPE_HPP_INCLUDE_GUARD_ 00039 #define BLOCXX_SIGNALSCOPE_HPP_INCLUDE_GUARD_ 00040 #include "blocxx/BLOCXX_config.h" 00041 #include <signal.h> 00042 00043 #ifdef BLOCXX_NCR 00044 #undef SIG_IGN 00045 #define SIG_IGN (void (*)())1 00046 #endif 00047 00048 // The classes and functions defined in this file are not meant for general 00049 // use, they are internal implementation details. They may change at any time. 00050 00051 namespace BLOCXX_NAMESPACE 00052 { 00053 00054 const int BLOCXX_SIGSEGV = SIGSEGV; 00055 const int BLOCXX_SIGABRT = SIGABRT; 00056 #ifdef SIGBUS // NetWare doesn't have this signal 00057 const int BLOCXX_SIGBUS = SIGBUS; 00058 #endif 00059 const int BLOCXX_SIGFPE = SIGFPE; 00060 00061 extern "C" { 00062 #ifdef BLOCXX_NCR 00063 typedef void (*sighandler_t)(void); 00064 #else 00065 typedef void (*sighandler_t)(int); 00066 #endif 00067 } 00068 00069 class BLOCXX_COMMON_API SignalScope 00070 { 00071 public: 00072 SignalScope( int sig, sighandler_t handler ) 00073 : m_sig( sig ) 00074 { 00075 #ifndef BLOCXX_WIN32 00076 struct sigaction saNew; 00077 saNew.sa_handler = handler; 00078 sigemptyset(&saNew.sa_mask); 00079 saNew.sa_flags = 0; 00080 sigaction(m_sig, &saNew, &m_oldHandler); 00081 #endif 00082 } 00083 ~SignalScope() 00084 { 00085 #ifndef BLOCXX_WIN32 00086 sigaction(m_sig, &m_oldHandler, 0); 00087 #endif 00088 } 00089 private: 00090 SignalScope(const SignalScope&); 00091 const SignalScope& operator=(const SignalScope&); 00092 int m_sig; 00093 #ifndef BLOCXX_WIN32 00094 struct sigaction m_oldHandler; 00095 #endif 00096 }; 00097 00098 } // end namespace BLOCXX_NAMESPACE 00099 00100 #endif