1 // Copyright (C) 2004 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
2 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
4 // This library is free software; you can redistribute it and/or
5 // modify it under the terms of the GNU Lesser General Public
6 // License as published by the Free Software Foundation; either
7 // version 2.1 of the License.
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 // Lesser General Public License for more details.
14 // You should have received a copy of the GNU Lesser General Public
15 // License along with this library; if not, write to the Free Software
16 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
20 // Author : Paul RASCLE (EDF)
24 #ifndef _LOCALTRACEBUFFERPOOL_HXX_
25 #define _LOCALTRACEBUFFERPOOL_HXX_
27 #include "SALOME_LocalTrace.hxx"
29 #define TRACE_BUFFER_SIZE 256 // number of entries in circular buffer
31 #define MAX_TRACE_LENGTH 256 // messages are truncated at this size
34 #include <semaphore.h>
35 #include "BaseTraceCollector.hxx"
36 #include "BasicsGenericDestructor.hxx"
38 #define ABORT_MESS 1 // for traceType field in struct LocalTrace_TraceInfo
41 struct SALOMELOCALTRACE_EXPORT LocalTrace_TraceInfo
43 char trace[MAX_TRACE_LENGTH];
45 int traceType; // normal or abort
46 int position; // to check sequence
49 class SALOMELOCALTRACE_EXPORT LocalTraceBufferPool : public PROTECTED_DELETE
52 static LocalTraceBufferPool* instance();
53 int insert(int traceType, const char* msg);
54 int retrieve(LocalTrace_TraceInfo& aTrace);
55 unsigned long toCollect();
58 LocalTraceBufferPool();
59 virtual ~LocalTraceBufferPool();
60 unsigned long lockedIncrement(unsigned long& pos);
63 static LocalTraceBufferPool* _singleton;
64 static pthread_mutex_t _singletonMutex;
65 static BaseTraceCollector *_myThreadTrace;
67 LocalTrace_TraceInfo _myBuffer[TRACE_BUFFER_SIZE];
68 sem_t _freeBufferSemaphore; // to wait until there is a free buffer
69 sem_t _fullBufferSemaphore; // to wait until there is a buffer to print
70 pthread_mutex_t _incrementMutex; // to lock position variables for increment
71 unsigned long _position;
72 unsigned long _insertPos;
73 unsigned long _retrievePos;