1 // Copyright (C) 2007-2024 CEA, EDF, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License, or (at your option) any later version.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
23 // File : LocalTraceCollector.cxx
24 // Author : Paul RASCLE (EDF)
29 #include "LocalTraceCollector.hxx"
30 #include "libSALOMELog.hxx"
37 // ============================================================================
39 * This class is for use without CORBA, inside or outside SALOME.
40 * SALOME uses SALOMETraceCollector, to allow trace collection via CORBA.
41 * Type of trace (and corresponding class) is chosen in LocalTraceBufferPool.
43 * Guarantees a unique object instance of the class (singleton thread safe)
44 * a separate thread for loop to print traces is launched.
46 // ============================================================================
48 BaseTraceCollector* LocalTraceCollector::instance()
50 if (_singleton == 0) // no need of lock when singleton already exists
52 pthread_mutex_lock(&_singletonMutex); // acquire lock to be alone
53 if (_singleton == 0) // another thread may have got
54 { // the lock after the first test
55 BaseTraceCollector* myInstance = new LocalTraceCollector();
57 sem_init(&_sem,0,0); // to wait until run thread is initialized
58 pthread_t traceThread;
59 pthread_create(&traceThread, NULL,
60 LocalTraceCollector::run, NULL);
62 _singleton = myInstance; // _singleton known only when init done
64 pthread_mutex_unlock(&_singletonMutex); // release lock
69 // ============================================================================
71 * In a separate thread, loop to print traces.
72 * Mutex guarantees initialisation on instance method is done and only one run
73 * allowed (double check ...)
74 * Loop until there is no more buffer to print,
75 * and no ask for end from destructor.
76 * Get a buffer. If type = ABORT then exit application with message.
78 // ============================================================================
80 void* LocalTraceCollector::run(void* /*bid*/)
82 _threadId = new pthread_t;
83 *_threadId = pthread_self();
84 sem_post(&_sem); // unlock instance
86 LocalTraceBufferPool* myTraceBuffer = LocalTraceBufferPool::instance();
87 LocalTrace_TraceInfo myTrace;
89 // --- Loop until there is no more buffer to print,
90 // and no ask for end from destructor.
92 while ((!_threadToClose) || myTraceBuffer->toCollect() )
96 DEVTRACE("FileTraceCollector _threadToClose");
100 myTraceBuffer->retrieve(myTrace);
101 if (myTrace.traceType == ABORT_MESS)
103 if( SALOME::VerbosityActivated() )
105 std::cout << std::flush ;
107 std::cerr << "INTERRUPTION from thread " << myTrace.threadId
108 << " : " << myTrace.trace;
110 std::cerr << "INTERRUPTION from thread " << (void*)(&myTrace.threadId)
111 << " : " << myTrace.trace;
113 std::cerr << std::flush ;
117 else if (myTrace.traceType == NORMAL_MESS)
119 if( SALOME::VerbosityActivated() )
121 std::cout << std::flush ;
122 std::cerr << myTrace.trace;
123 std::cerr << std::flush ;
128 if( SALOME::VerbosityActivated() )
130 std::cout << std::flush ;
131 std::cerr << myTrace.trace;
132 std::cerr << std::flush ;
140 // ============================================================================
142 * Destructor: wait until printing thread ends (LocalTraceCollector::run)
144 // ============================================================================
146 LocalTraceCollector:: ~LocalTraceCollector()
148 pthread_mutex_lock(&_singletonMutex); // acquire lock to be alone
151 DEVTRACE("LocalTraceCollector:: ~LocalTraceCollector()");
152 LocalTraceBufferPool* myTraceBuffer = LocalTraceBufferPool::instance();
154 myTraceBuffer->insert(NORMAL_MESS,"end of trace\n"); // to wake up thread
157 int ret = pthread_join(*_threadId, NULL);
158 if (ret) { std::cerr << "error close LocalTraceCollector : "<< ret << std::endl; }
159 else { DEVTRACE("LocalTraceCollector destruction OK"); }
166 pthread_mutex_unlock(&_singletonMutex); // release lock
169 // ============================================================================
171 * Constructor: no need of LocalTraceBufferPool object initialization here,
172 * thread safe singleton used in LocalTraceBufferPool::instance()
174 // ============================================================================
176 LocalTraceCollector::LocalTraceCollector()