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File: [Pegasus] / pegasus / src / Pegasus / Common / Signal.cpp
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Revision: 1.31, Fri Dec 1 22:40:23 2006 UTC (17 years, 7 months ago) by mike Branch: MAIN CVS Tags: TASK-PEP286_PRIVILEGE_SEPARATION-root, TASK-PEP286_PRIVILEGE_SEPARATION-branch, TASK-Bug2102_RCMPIWindows-root, TASK-Bug2102_RCMPIWindows-merged_out_to_branch, TASK-Bug2102_RCMPIWindows-merged_out_from_trunk, TASK-Bug2102_RCMPIWindows-merged_in_to_trunk, TASK-Bug2102_RCMPIWindows-merged_in_from_branch, TASK-Bug2102_RCMPIWindows-branch, TASK-Bug2102Final-root, TASK-Bug2102Final-merged_out_to_branch, TASK-Bug2102Final-merged_out_from_trunk, TASK-Bug2102Final-merged_in_to_trunk, TASK-Bug2102Final-merged_in_from_branch, TASK-Bug2102Final-branch, TASK-BUG7240-root, TASK-BUG7240-branch, RELEASE_2_6_3-RC2, RELEASE_2_6_3-RC1, RELEASE_2_6_3, RELEASE_2_6_2-RC1, RELEASE_2_6_2, RELEASE_2_6_1-RC1, RELEASE_2_6_1, RELEASE_2_6_0-RC1, RELEASE_2_6_0, RELEASE_2_6-root, RELEASE_2_6-branch-clean, RELEASE_2_6-branch, PEP286_PRIVILEGE_SEPARATION_ROOT, PEP286_PRIVILEGE_SEPARATION_CODE_FREEZE, PEP286_PRIVILEGE_SEPARATION_BRANCH, PEP286_PRIVILEGE_SEPARATION_1 Changes since 1.30: +1 -1 lines BUG#: 5907 TITLE: Port to DARWIN_IX86_GNU DESCRIPTION: Ported to DARWIN_IX86_GNU platform (modeled after DARWIN_PPC_GNU). |
//%2006//////////////////////////////////////////////////////////////////////// // // 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. // Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.; // IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group. // Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.; // EMC Corporation; VERITAS Software Corporation; The Open Group. // Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.; // EMC Corporation; Symantec 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. // //============================================================================== // //%///////////////////////////////////////////////////////////////////////////// #include <cstdio> #include <cstring> #ifdef PEGASUS_PLATFORM_SOLARIS_SPARC_CC #include <iostream.h> #endif #include <Pegasus/Common/Config.h> #include <Pegasus/Common/Signal.h> #include <Pegasus/Common/Exception.h> PEGASUS_USING_PEGASUS; void sig_act(int s_n, PEGASUS_SIGINFO_T * s_info, void * sig) { ThreadReturnType retval = 0; if (s_n == PEGASUS_SIGABRT) { printf("Received an abort signal\n"); #if defined(PEGASUS_HAS_SIGNALS) && !defined(PEGASUS_OS_OS400) 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 Threads::exit(retval); } } PEGASUS_NAMESPACE_BEGIN #ifdef PEGASUS_HAS_SIGNALS SignalHandler::SignalHandler() { for (unsigned i = 0; i <= PEGASUS_NSIG; i++) { register_handler &rh = reg_handler[i]; rh.signum = i; rh.active = 0; rh.sh = NULL; memset(&rh.oldsa,0,sizeof(struct sigaction)); } } SignalHandler::~SignalHandler() { deactivateAll(); } void SignalHandler::verifySignum(unsigned signum) { if ( signum > PEGASUS_NSIG ) { throw IndexOutOfBoundsException(); } } SignalHandler::register_handler& SignalHandler::getHandler(unsigned signum) { verifySignum(signum); return reg_handler[signum]; } void SignalHandler::registerHandler(unsigned signum, signal_handler _sighandler) { register_handler &rh = getHandler(signum); AutoMutex autoMut(reg_mutex); deactivate_i(rh); rh.sh = _sighandler; } void SignalHandler::activate(unsigned signum) { register_handler &rh = getHandler(signum); AutoMutex autoMut(reg_mutex); if (rh.active) { return; // throw exception } struct sigaction sig_acts; sig_acts.sa_sigaction = rh.sh; sigfillset(&(sig_acts.sa_mask)); sig_acts.sa_flags = SA_SIGINFO; sigaction(signum, &sig_acts, &rh.oldsa); rh.active = -1; } void SignalHandler::deactivate(unsigned signum) { register_handler &rh = getHandler(signum); AutoMutex autoMut(reg_mutex); deactivate_i(rh); } void SignalHandler::deactivate_i(register_handler &rh) { if (rh.active) { rh.active = 0; sigaction(rh.signum, &rh.oldsa, NULL); } } void SignalHandler::deactivateAll() { AutoMutex autoMut(reg_mutex); for (unsigned i=0; i <= PEGASUS_NSIG; i++) { register_handler &rh = reg_handler[i]; if (rh.active) { deactivate_i(rh); } } } void SignalHandler::ignore(unsigned signum) { verifySignum(signum); #if !defined(PEGASUS_PLATFORM_OS400_ISERIES_IBM) && \ !defined(PEGASUS_OS_DARWIN) sigignore(signum); #else struct sigaction sig_acts; sig_acts.sa_handler = SIG_IGN; sigfillset(&(sig_acts.sa_mask)); sig_acts.sa_flags = 0; sigaction(signum, &sig_acts, NULL); #endif } #else // PEGASUS_HAS_SIGNALS SignalHandler::SignalHandler() { } SignalHandler::~SignalHandler() { } void SignalHandler::registerHandler(unsigned signum, signal_handler _sighandler) { } void SignalHandler::activate(unsigned signum) { } void SignalHandler::deactivate(unsigned signum) { } void SignalHandler::deactivateAll() { } void SignalHandler::ignore(unsigned 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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