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File: [Pegasus] / pegasus / src / Pegasus / Common / Signal.cpp
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Revision: 1.16, Wed Oct 22 13:26:04 2003 UTC (20 years, 8 months ago) by karl Branch: MAIN CVS Tags: local, RELEASE_2_3_1-root, RELEASE_2_3_1-branch, RELEASE_2_3_0-root, RELEASE_2_3_0-branch, POST_LICENSE_UPDATE_2003 Changes since 1.15: +5 -3 lines PEP 55 Update license on source files to current license text and date |
//%2003//////////////////////////////////////////////////////////////////////// // // Copyright (c) 2000, 2001, 2002 BMC Software, Hewlett-Packard Development // Company, L. P., IBM Corp., The Open Group, Tivoli Systems. // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L. P.; // IBM Corp.; EMC Corporation, The Open Group. // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to // deal in the Software without restriction, including without limitation the // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or // sell copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. // //============================================================================== // // Author: Markus Mueller (markus_mueller@de.ibm.com) // // Modified By: Roger Kumpf, Hewlett-Packard Company (roger_kumpf@hp.com) // //%///////////////////////////////////////////////////////////////////////////// #include <cstdio> #include <cstring> #ifdef PEGASUS_PLATFORM_SOLARIS_SPARC_CC #include <stdio.h> #endif #include <Pegasus/Common/Config.h> #include <Pegasus/Common/Signal.h> PEGASUS_USING_PEGASUS; void sig_act(int s_n, PEGASUS_SIGINFO_T * s_info, void * sig) { PEGASUS_THREAD_RETURN retval = 0; if (s_n == PEGASUS_SIGABRT) { printf("Received an abort signal\n"); #ifdef PEGASUS_HAS_SIGNALS printf(" in address %p\n", s_info->si_addr); #endif // In general it is dangerous to call pthread from within a // signal handler, because they are not signal safe exit_thread(retval); } } PEGASUS_NAMESPACE_BEGIN #ifdef PEGASUS_HAS_SIGNALS SignalHandler::SignalHandler() : reg_mutex() { for(Uint32 i=0;i < 32;i++) { reg_handler[i].active = 0; reg_handler[i].sh = NULL; memset(®_handler[i].oldsa,0,sizeof(struct sigaction)); } } SignalHandler::~SignalHandler() { deactivateAll(); } void SignalHandler::registerHandler(Uint32 signum, signal_handler _sighandler) { reg_mutex.lock(pegasus_thread_self()); deactivate_i(signum); reg_handler[signum].sh = _sighandler; reg_mutex.unlock(); } void SignalHandler::activate(Uint32 signum) { reg_mutex.lock(pegasus_thread_self()); if (reg_handler[signum].active) return; // throw exception struct sigaction * sig_acts = new struct sigaction; sig_acts->sa_sigaction = reg_handler[signum].sh; sigfillset(&(sig_acts->sa_mask)); #if defined(PEGASUS_PLATFORM_AIX_RS_IBMCXX) || defined(PEGASUS_PLATFORM_ZOS_ZSERIES_IBM) || defined(PEGASUS_PLATFORM_HPUX_ACC) || defined(PEGASUS_PLATFORM_OS400_ISERIES_IBM) || defined(PEGASUS_PLATFORM_SOLARIS_SPARC_CC) sig_acts->sa_flags = SA_SIGINFO | SA_RESETHAND; #else sig_acts->sa_flags = SA_SIGINFO | SA_ONESHOT; #if !defined(PEGASUS_PLATFORM_LINUX_GENERIC_GNU) sig_acts->sa_restorer = NULL; #endif #endif sigaction(signum, sig_acts, ®_handler[signum].oldsa); reg_handler[signum].active = -1; reg_mutex.unlock(); delete sig_acts; } void SignalHandler::deactivate(Uint32 signum) { reg_mutex.lock(pegasus_thread_self()); deactivate_i(signum); reg_mutex.unlock(); } void SignalHandler::deactivate_i(Uint32 signum) { if (reg_handler[signum].active) { reg_handler[signum].active = 0; sigaction(signum, ®_handler[signum].oldsa, NULL); } } void SignalHandler::deactivateAll() { reg_mutex.lock(pegasus_thread_self()); for (Uint32 i=0; i < 32; i++) if (reg_handler[i].active) deactivate_i(i); reg_mutex.unlock(); } void SignalHandler::ignore(Uint32 signum) { #if !defined(PEGASUS_PLATFORM_OS400_ISERIES_IBM) ::sigignore(signum); #else struct sigaction * sig_acts = new struct sigaction; sig_acts->sa_handler = SIG_IGN; sigfillset(&(sig_acts->sa_mask)); sig_acts->sa_flags = 0; sigaction(signum, sig_acts, NULL); delete sig_acts; #endif } #else // PEGASUS_HAS_SIGNALS SignalHandler::SignalHandler() { } SignalHandler::~SignalHandler() { } void SignalHandler::registerHandler(Uint32 signum, signal_handler _sighandler) { } void SignalHandler::activate(Uint32 signum) { } void SignalHandler::deactivate(Uint32 signum) { } void SignalHandler::deactivateAll() { } void SignalHandler::ignore(Uint32 signum) { } #endif // PEGASUS_HAS_SIGNALS // export the global signal handling object SignalHandler _globalSignalHandler; SignalHandler * _globalSignalHandlerPtr = &_globalSignalHandler; SignalHandler * getSigHandle() { return _globalSignalHandlerPtr; } PEGASUS_NAMESPACE_END
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