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.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org
20 // Author : Paul RASCLE (EDF)
24 #ifndef _LOCALTRACEBUFFERPOOL_HXX_
25 #define _LOCALTRACEBUFFERPOOL_HXX_
27 #define TRACE_BUFFER_SIZE 256 // number of entries in circular buffer
29 #define MAX_TRACE_LENGTH 256 // messages are truncated at this size
32 #include <semaphore.h>
34 #define ABORT_MESS 1 // for traceType field in struct LocalTrace_TraceInfo
37 struct LocalTrace_TraceInfo
39 char trace[MAX_TRACE_LENGTH];
41 int traceType; // normal or abort
42 int position; // to check sequence
45 class LocalTraceBufferPool
48 static LocalTraceBufferPool* instance();
49 int insert(int traceType, const char* msg);
50 int retrieve(LocalTrace_TraceInfo& aTrace);
51 unsigned long toCollect();
52 ~LocalTraceBufferPool();
55 LocalTraceBufferPool();
56 unsigned long lockedIncrement(unsigned long& pos);
59 static LocalTraceBufferPool* _singleton;
60 static pthread_mutex_t _singletonMutex;
61 LocalTrace_TraceInfo _myBuffer[TRACE_BUFFER_SIZE];
62 sem_t _freeBufferSemaphore; // to wait until there is a free buffer
63 sem_t _fullBufferSemaphore; // to wait until there is a buffer to print
64 pthread_mutex_t _incrementMutex; // to lock position variables for increment
65 unsigned long _position;
66 unsigned long _insertPos;
67 unsigned long _retrievePos;