// Copyright (c) 1998-1999 Matra Datavision
-// Copyright (c) 1999-2012 OPEN CASCADE SAS
+// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
-// The content of this file is subject to the Open CASCADE Technology Public
-// License Version 6.5 (the "License"). You may not use the content of this file
-// except in compliance with the License. Please obtain a copy of the License
-// at http://www.opencascade.org and read it completely before using this file.
+// This file is part of Open CASCADE Technology software library.
//
-// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
-// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
+// This library is free software; you can redistribute it and/or modify it under
+// the terms of the GNU Lesser General Public License version 2.1 as published
+// by the Free Software Foundation, with special exception defined in the file
+// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
+// distribution for complete text of the license and disclaimer of any warranty.
//
-// The Original Code and all software distributed under the License is
-// distributed on an "AS IS" basis, without warranty of any kind, and the
-// Initial Developer hereby disclaims all such warranties, including without
-// limitation, any warranties of merchantability, fitness for a particular
-// purpose or non-infringement. Please see the License for the specific terms
-// and conditions governing the rights and limitations under the License.
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement.
//============================================================================
//==== Titre: Standard_ErrorHandler.cxx
//============================================================================
#include <Standard_ErrorHandler.hxx>
#include <Standard_Failure.hxx>
-#include <Standard_ErrorHandlerCallback.hxx>
#include <Standard_Mutex.hxx>
#include <Standard.hxx>
-#ifndef WNT
+#ifndef _WIN32
#include <pthread.h>
#else
#include <windows.h>
//==== The top of the Errors Stack ===========================================
static Standard_ErrorHandler* Top = 0;
-// A mutex to protect from concurrent access to Top
-// Note that we should NOT use Sentry while in this class, as Sentry
-// would register mutex as callback in the current exception handler
-static Standard_Mutex theMutex;
+//! A mutex to protect from concurrent access to Top.
+//! Mutex is defined as function to avoid issues caused by
+//! an undefined static variables initialization order across compilation units (@sa #0031681 bug).
+//! Note that we should NOT use Sentry while in this class, as Sentry
+//! would register mutex as callback in the current exception handler.
+static Standard_Mutex& GetMutex()
+{
+ static Standard_Mutex theMutex;
+ return theMutex;
+}
static inline Standard_ThreadId GetThreadID()
{
-#ifndef WNT
- return pthread_self();
+#ifndef _WIN32
+ return (Standard_ThreadId)pthread_self();
#else
return GetCurrentThreadId();
#endif
myStatus(Standard_HandlerVoid), myCallbackPtr(0)
{
myThread = GetThreadID();
+ memset (&myLabel, 0, sizeof(myLabel));
- theMutex.Lock();
+ GetMutex().Lock();
myPrevious = Top;
Top = this;
- theMutex.Unlock();
+ GetMutex().Unlock();
}
void Standard_ErrorHandler::Unlink()
{
// put a lock on the stack
- theMutex.Lock();
+ GetMutex().Lock();
Standard_ErrorHandler* aPrevious = 0;
Standard_ErrorHandler* aCurrent = Top;
}
if(aCurrent==0) {
- theMutex.Unlock();
+ GetMutex().Unlock();
return;
}
aPrevious->myPrevious=aCurrent->myPrevious;
}
myPrevious = 0;
- theMutex.Unlock();
+ GetMutex().Unlock();
// unlink and destroy all registered callbacks
Standard_Address aPtr = aCurrent->myCallbackPtr;
myCallbackPtr = 0;
while ( aPtr ) {
- Standard_ErrorHandlerCallback* aCallback = (Standard_ErrorHandlerCallback*)aPtr;
+ Standard_ErrorHandler::Callback* aCallback = (Standard_ErrorHandler::Callback*)aPtr;
aPtr = aCallback->myNext;
// Call destructor explicitly, as we know that it will not be called automatically
aCallback->DestroyCallback();
Standard_Boolean Standard_ErrorHandler::IsInTryBlock()
{
Standard_ErrorHandler* anActive = FindHandler(Standard_HandlerVoid, Standard_False);
- return anActive != NULL && anActive->myLabel != NULL;
+ return anActive != NULL;
}
Standard_ErrorHandler* anActive = FindHandler(Standard_HandlerVoid, Standard_True);
//==== Check if can do the "longjmp" =======================================
- if(anActive == NULL || anActive->myLabel == NULL) {
- cerr << "*** Abort *** an exception was raised, but no catch was found." << endl;
+ if(anActive == NULL) {
+ std::cerr << "*** Abort *** an exception was raised, but no catch was found." << std::endl;
if (!theError.IsNull())
- cerr << "\t... The exception is:" << theError->GetMessageString() << endl;
+ std::cerr << "\t... The exception is:" << theError->GetMessageString() << std::endl;
exit(1);
}
const Standard_Boolean theUnlink)
{
// lock the stack
- theMutex.Lock();
+ GetMutex().Lock();
// Find the current ErrorHandler Accordin tread
Standard_ErrorHandler* aPrevious = 0;
aStop = Standard_True;
}
}
- theMutex.Unlock();
+ GetMutex().Unlock();
return anActive;
}
+
+#if defined(OCC_CONVERT_SIGNALS)
+
+Standard_ErrorHandler::Callback::Callback ()
+ : myHandler(0), myPrev(0), myNext(0)
+{
+}
+
+Standard_ErrorHandler::Callback::~Callback ()
+{
+ UnregisterCallback();
+}
+
+void Standard_ErrorHandler::Callback::RegisterCallback ()
+{
+ if ( myHandler ) return; // already registered
+
+ // find current active exception handler
+ Standard_ErrorHandler *aHandler =
+ Standard_ErrorHandler::FindHandler(Standard_HandlerVoid, Standard_False);
+
+ // if found, add this callback object first to the list
+ if ( aHandler ) {
+ myHandler = aHandler;
+ myNext = aHandler->myCallbackPtr;
+ if ( myNext ) ((Standard_ErrorHandler::Callback*)myNext)->myPrev = this;
+ aHandler->myCallbackPtr = this;
+ }
+}
+
+void Standard_ErrorHandler::Callback::UnregisterCallback ()
+{
+ if ( ! myHandler ) return;
+ if ( myNext )
+ ((Standard_ErrorHandler::Callback*)myNext)->myPrev = myPrev;
+ if ( myPrev )
+ ((Standard_ErrorHandler::Callback*)myPrev)->myNext = myNext;
+ else if ( ((Standard_ErrorHandler*)myHandler)->myCallbackPtr == this)
+ ((Standard_ErrorHandler*)myHandler)->myCallbackPtr = (Standard_ErrorHandler::Callback*)myNext;
+ myHandler = myNext = myPrev = 0;
+}
+#endif
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