1 //===-- PThreadMutex.cpp ----------------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // Created by Greg Clayton on 12/9/08. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "PThreadMutex.h" 15 16 // C Includes 17 // C++ Includes 18 // Other libraries and framework includes 19 // Project includes 20 #include "DNBTimer.h" 21 22 #if defined (DEBUG_PTHREAD_MUTEX_DEADLOCKS) 23 24 PThreadMutex::Locker::Locker(PThreadMutex& m, const char *function, const char *file, const int line) : 25 m_pMutex(m.Mutex()), 26 m_function(function), 27 m_file(file), 28 m_line(line), 29 m_lock_time(0) 30 { 31 Lock(); 32 } 33 34 PThreadMutex::Locker::Locker(PThreadMutex* m, const char *function, const char *file, const int line) : 35 m_pMutex(m ? m->Mutex() : NULL), 36 m_function(function), 37 m_file(file), 38 m_line(line), 39 m_lock_time(0) 40 { 41 Lock(); 42 } 43 44 PThreadMutex::Locker::Locker(pthread_mutex_t *mutex, const char *function, const char *file, const int line) : 45 m_pMutex(mutex), 46 m_function(function), 47 m_file(file), 48 m_line(line), 49 m_lock_time(0) 50 { 51 Lock(); 52 } 53 54 55 PThreadMutex::Locker::~Locker() 56 { 57 Unlock(); 58 } 59 60 61 void 62 PThreadMutex::Locker::Lock() 63 { 64 if (m_pMutex) 65 { 66 m_lock_time = DNBTimer::GetTimeOfDay(); 67 if (::pthread_mutex_trylock (m_pMutex) != 0) 68 { 69 fprintf(stdout, "::pthread_mutex_trylock (%8.8p) mutex is locked (function %s in %s:%i), waiting...\n", m_pMutex, m_function, m_file, m_line); 70 ::pthread_mutex_lock (m_pMutex); 71 fprintf(stdout, "::pthread_mutex_lock (%8.8p) succeeded after %6llu usecs (function %s in %s:%i)\n", m_pMutex, DNBTimer::GetTimeOfDay() - m_lock_time, m_function, m_file, m_line); 72 } 73 } 74 } 75 76 77 void 78 PThreadMutex::Locker::Unlock() 79 { 80 fprintf(stdout, "::pthread_mutex_unlock (%8.8p) had lock for %6llu usecs in %s in %s:%i\n", m_pMutex, DNBTimer::GetTimeOfDay() - m_lock_time, m_function, m_file, m_line); 81 ::pthread_mutex_unlock (m_pMutex); 82 } 83 84 #endif 85
