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add queen mary DSP library
git-svn-id: svn://localhost/ardour2/branches/3.0@9029 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Paul Davis
parent
fa41cfef58
commit
3deba1921b
85 changed files with 69852 additions and 0 deletions
643
libs/qm-dsp/thread/Thread.cpp
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643
libs/qm-dsp/thread/Thread.cpp
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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/*
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QM DSP Library
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Centre for Digital Music, Queen Mary, University of London.
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This file copyright Chris Cannam, used with permission.
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*/
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#include "Thread.h"
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#include <iostream>
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#include <cstdlib>
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#ifdef USE_PTHREADS
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#include <sys/time.h>
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#include <time.h>
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#endif
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using std::cerr;
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using std::endl;
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using std::string;
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#ifdef _WIN32
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Thread::Thread() :
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m_id(0),
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m_extant(false)
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{
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#ifdef DEBUG_THREAD
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cerr << "THREAD DEBUG: Created thread object " << this << endl;
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#endif
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}
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Thread::~Thread()
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{
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#ifdef DEBUG_THREAD
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cerr << "THREAD DEBUG: Destroying thread object " << this << ", id " << m_id << endl;
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#endif
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if (m_extant) {
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WaitForSingleObject(m_id, INFINITE);
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}
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#ifdef DEBUG_THREAD
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cerr << "THREAD DEBUG: Destroyed thread object " << this << endl;
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#endif
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}
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void
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Thread::start()
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{
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m_id = CreateThread(NULL, 0, staticRun, this, 0, 0);
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if (!m_id) {
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cerr << "ERROR: thread creation failed" << endl;
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exit(1);
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} else {
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#ifdef DEBUG_THREAD
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cerr << "THREAD DEBUG: Created thread " << m_id << " for thread object " << this << endl;
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#endif
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m_extant = true;
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}
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}
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void
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Thread::wait()
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{
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if (m_extant) {
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#ifdef DEBUG_THREAD
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cerr << "THREAD DEBUG: Waiting on thread " << m_id << " for thread object " << this << endl;
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#endif
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WaitForSingleObject(m_id, INFINITE);
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#ifdef DEBUG_THREAD
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cerr << "THREAD DEBUG: Waited on thread " << m_id << " for thread object " << this << endl;
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#endif
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m_extant = false;
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}
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}
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Thread::Id
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Thread::id()
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{
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return m_id;
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}
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bool
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Thread::threadingAvailable()
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{
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return true;
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}
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DWORD
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Thread::staticRun(LPVOID arg)
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{
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Thread *thread = static_cast<Thread *>(arg);
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#ifdef DEBUG_THREAD
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cerr << "THREAD DEBUG: " << (void *)GetCurrentThreadId() << ": Running thread " << thread->m_id << " for thread object " << thread << endl;
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#endif
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thread->run();
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return 0;
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}
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Mutex::Mutex()
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#ifndef NO_THREAD_CHECKS
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:
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m_lockedBy(-1)
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#endif
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{
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m_mutex = CreateMutex(NULL, FALSE, NULL);
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#ifdef DEBUG_MUTEX
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cerr << "MUTEX DEBUG: " << (void *)GetCurrentThreadId() << ": Initialised mutex " << &m_mutex << endl;
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#endif
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}
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Mutex::~Mutex()
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{
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#ifdef DEBUG_MUTEX
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cerr << "MUTEX DEBUG: " << (void *)GetCurrentThreadId() << ": Destroying mutex " << &m_mutex << endl;
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#endif
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CloseHandle(m_mutex);
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}
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void
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Mutex::lock()
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{
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#ifndef NO_THREAD_CHECKS
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DWORD tid = GetCurrentThreadId();
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if (m_lockedBy == tid) {
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cerr << "ERROR: Deadlock on mutex " << &m_mutex << endl;
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}
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#endif
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#ifdef DEBUG_MUTEX
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cerr << "MUTEX DEBUG: " << (void *)tid << ": Want to lock mutex " << &m_mutex << endl;
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#endif
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WaitForSingleObject(m_mutex, INFINITE);
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#ifndef NO_THREAD_CHECKS
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m_lockedBy = tid;
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#endif
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#ifdef DEBUG_MUTEX
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cerr << "MUTEX DEBUG: " << (void *)tid << ": Locked mutex " << &m_mutex << endl;
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#endif
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}
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void
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Mutex::unlock()
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{
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#ifndef NO_THREAD_CHECKS
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DWORD tid = GetCurrentThreadId();
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if (m_lockedBy != tid) {
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cerr << "ERROR: Mutex " << &m_mutex << " not owned by unlocking thread" << endl;
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return;
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}
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#endif
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#ifdef DEBUG_MUTEX
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cerr << "MUTEX DEBUG: " << (void *)tid << ": Unlocking mutex " << &m_mutex << endl;
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#endif
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#ifndef NO_THREAD_CHECKS
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m_lockedBy = -1;
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#endif
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ReleaseMutex(m_mutex);
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}
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bool
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Mutex::trylock()
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{
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#ifndef NO_THREAD_CHECKS
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DWORD tid = GetCurrentThreadId();
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#endif
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DWORD result = WaitForSingleObject(m_mutex, 0);
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if (result == WAIT_TIMEOUT || result == WAIT_FAILED) {
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#ifdef DEBUG_MUTEX
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cerr << "MUTEX DEBUG: " << (void *)tid << ": Mutex " << &m_mutex << " unavailable" << endl;
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#endif
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return false;
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} else {
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#ifndef NO_THREAD_CHECKS
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m_lockedBy = tid;
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#endif
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#ifdef DEBUG_MUTEX
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cerr << "MUTEX DEBUG: " << (void *)tid << ": Locked mutex " << &m_mutex << " (from trylock)" << endl;
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#endif
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return true;
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}
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}
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Condition::Condition(string name) :
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m_locked(false)
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#ifdef DEBUG_CONDITION
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, m_name(name)
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#endif
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{
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m_mutex = CreateMutex(NULL, FALSE, NULL);
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m_condition = CreateEvent(NULL, FALSE, FALSE, NULL);
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#ifdef DEBUG_CONDITION
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cerr << "CONDITION DEBUG: " << (void *)GetCurrentThreadId() << ": Initialised condition " << &m_condition << " \"" << m_name << "\"" << endl;
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#endif
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}
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Condition::~Condition()
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{
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#ifdef DEBUG_CONDITION
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cerr << "CONDITION DEBUG: " << (void *)GetCurrentThreadId() << ": Destroying condition " << &m_condition << " \"" << m_name << "\"" << endl;
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#endif
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if (m_locked) ReleaseMutex(m_mutex);
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CloseHandle(m_condition);
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CloseHandle(m_mutex);
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}
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void
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Condition::lock()
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{
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#ifdef DEBUG_CONDITION
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cerr << "CONDITION DEBUG: " << (void *)GetCurrentThreadId() << ": Want to lock " << &m_condition << " \"" << m_name << "\"" << endl;
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#endif
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WaitForSingleObject(m_mutex, INFINITE);
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m_locked = true;
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#ifdef DEBUG_CONDITION
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cerr << "CONDITION DEBUG: " << (void *)GetCurrentThreadId() << ": Locked " << &m_condition << " \"" << m_name << "\"" << endl;
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#endif
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}
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void
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Condition::unlock()
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{
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if (!m_locked) {
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#ifdef DEBUG_CONDITION
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cerr << "CONDITION DEBUG: " << (void *)GetCurrentThreadId() << ": Not locked " << &m_condition << " \"" << m_name << "\"" << endl;
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#endif
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return;
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}
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#ifdef DEBUG_CONDITION
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cerr << "CONDITION DEBUG: " << (void *)GetCurrentThreadId() << ": Unlocking " << &m_condition << " \"" << m_name << "\"" << endl;
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#endif
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m_locked = false;
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ReleaseMutex(m_mutex);
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}
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void
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Condition::wait(int us)
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{
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if (us == 0) {
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#ifdef DEBUG_CONDITION
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cerr << "CONDITION DEBUG: " << (void *)GetCurrentThreadId() << ": Waiting on " << &m_condition << " \"" << m_name << "\"" << endl;
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#endif
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SignalObjectAndWait(m_mutex, m_condition, INFINITE, FALSE);
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WaitForSingleObject(m_mutex, INFINITE);
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} else {
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DWORD ms = us / 1000;
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if (us > 0 && ms == 0) ms = 1;
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#ifdef DEBUG_CONDITION
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cerr << "CONDITION DEBUG: " << (void *)GetCurrentThreadId() << ": Timed waiting on " << &m_condition << " \"" << m_name << "\"" << endl;
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#endif
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SignalObjectAndWait(m_mutex, m_condition, ms, FALSE);
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WaitForSingleObject(m_mutex, INFINITE);
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}
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#ifdef DEBUG_CONDITION
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cerr << "CONDITION DEBUG: " << (void *)GetCurrentThreadId() << ": Wait done on " << &m_condition << " \"" << m_name << "\"" << endl;
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#endif
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m_locked = true;
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}
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void
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Condition::signal()
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{
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#ifdef DEBUG_CONDITION
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cerr << "CONDITION DEBUG: " << (void *)GetCurrentThreadId() << ": Signalling " << &m_condition << " \"" << m_name << "\"" << endl;
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#endif
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SetEvent(m_condition);
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}
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#else /* !_WIN32 */
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#ifdef USE_PTHREADS
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Thread::Thread() :
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m_id(0),
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m_extant(false)
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{
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#ifdef DEBUG_THREAD
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cerr << "THREAD DEBUG: Created thread object " << this << endl;
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#endif
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}
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Thread::~Thread()
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{
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#ifdef DEBUG_THREAD
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cerr << "THREAD DEBUG: Destroying thread object " << this << ", id " << m_id << endl;
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#endif
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if (m_extant) {
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pthread_join(m_id, 0);
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}
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#ifdef DEBUG_THREAD
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cerr << "THREAD DEBUG: Destroyed thread object " << this << endl;
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#endif
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}
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void
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Thread::start()
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{
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if (pthread_create(&m_id, 0, staticRun, this)) {
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cerr << "ERROR: thread creation failed" << endl;
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exit(1);
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} else {
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#ifdef DEBUG_THREAD
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cerr << "THREAD DEBUG: Created thread " << m_id << " for thread object " << this << endl;
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#endif
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m_extant = true;
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}
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}
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void
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Thread::wait()
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{
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if (m_extant) {
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#ifdef DEBUG_THREAD
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cerr << "THREAD DEBUG: Waiting on thread " << m_id << " for thread object " << this << endl;
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#endif
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pthread_join(m_id, 0);
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#ifdef DEBUG_THREAD
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cerr << "THREAD DEBUG: Waited on thread " << m_id << " for thread object " << this << endl;
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#endif
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m_extant = false;
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}
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}
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Thread::Id
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Thread::id()
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{
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return m_id;
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}
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bool
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Thread::threadingAvailable()
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{
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return true;
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}
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void *
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Thread::staticRun(void *arg)
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{
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Thread *thread = static_cast<Thread *>(arg);
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#ifdef DEBUG_THREAD
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cerr << "THREAD DEBUG: " << (void *)pthread_self() << ": Running thread " << thread->m_id << " for thread object " << thread << endl;
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#endif
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thread->run();
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return 0;
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}
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Mutex::Mutex()
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#ifndef NO_THREAD_CHECKS
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:
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m_lockedBy(0),
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m_locked(false)
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#endif
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{
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pthread_mutex_init(&m_mutex, 0);
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#ifdef DEBUG_MUTEX
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cerr << "MUTEX DEBUG: " << (void *)pthread_self() << ": Initialised mutex " << &m_mutex << endl;
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#endif
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}
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Mutex::~Mutex()
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{
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#ifdef DEBUG_MUTEX
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cerr << "MUTEX DEBUG: " << (void *)pthread_self() << ": Destroying mutex " << &m_mutex << endl;
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#endif
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pthread_mutex_destroy(&m_mutex);
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}
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void
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Mutex::lock()
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{
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#ifndef NO_THREAD_CHECKS
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pthread_t tid = pthread_self();
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if (m_locked && m_lockedBy == tid) {
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cerr << "ERROR: Deadlock on mutex " << &m_mutex << endl;
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}
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#endif
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#ifdef DEBUG_MUTEX
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cerr << "MUTEX DEBUG: " << (void *)tid << ": Want to lock mutex " << &m_mutex << endl;
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#endif
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pthread_mutex_lock(&m_mutex);
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#ifndef NO_THREAD_CHECKS
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m_lockedBy = tid;
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m_locked = true;
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#endif
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#ifdef DEBUG_MUTEX
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cerr << "MUTEX DEBUG: " << (void *)tid << ": Locked mutex " << &m_mutex << endl;
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#endif
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}
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void
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Mutex::unlock()
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{
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#ifndef NO_THREAD_CHECKS
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pthread_t tid = pthread_self();
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if (!m_locked) {
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cerr << "ERROR: Mutex " << &m_mutex << " not locked in unlock" << endl;
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return;
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} else if (m_lockedBy != tid) {
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cerr << "ERROR: Mutex " << &m_mutex << " not owned by unlocking thread" << endl;
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return;
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}
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#endif
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#ifdef DEBUG_MUTEX
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cerr << "MUTEX DEBUG: " << (void *)tid << ": Unlocking mutex " << &m_mutex << endl;
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#endif
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#ifndef NO_THREAD_CHECKS
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m_locked = false;
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#endif
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pthread_mutex_unlock(&m_mutex);
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}
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bool
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Mutex::trylock()
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{
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#ifndef NO_THREAD_CHECKS
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pthread_t tid = pthread_self();
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#endif
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if (pthread_mutex_trylock(&m_mutex)) {
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#ifdef DEBUG_MUTEX
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cerr << "MUTEX DEBUG: " << (void *)tid << ": Mutex " << &m_mutex << " unavailable" << endl;
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#endif
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return false;
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} else {
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#ifndef NO_THREAD_CHECKS
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m_lockedBy = tid;
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m_locked = true;
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#endif
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#ifdef DEBUG_MUTEX
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cerr << "MUTEX DEBUG: " << (void *)tid << ": Locked mutex " << &m_mutex << " (from trylock)" << endl;
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#endif
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return true;
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}
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}
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|
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Condition::Condition(string name) :
|
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m_locked(false)
|
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#ifdef DEBUG_CONDITION
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, m_name(name)
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#endif
|
||||
{
|
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pthread_mutex_init(&m_mutex, 0);
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pthread_cond_init(&m_condition, 0);
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#ifdef DEBUG_CONDITION
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cerr << "CONDITION DEBUG: " << (void *)pthread_self() << ": Initialised condition " << &m_condition << " \"" << m_name << "\"" << endl;
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#endif
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}
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Condition::~Condition()
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{
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#ifdef DEBUG_CONDITION
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cerr << "CONDITION DEBUG: " << (void *)pthread_self() << ": Destroying condition " << &m_condition << " \"" << m_name << "\"" << endl;
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#endif
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if (m_locked) pthread_mutex_unlock(&m_mutex);
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pthread_cond_destroy(&m_condition);
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pthread_mutex_destroy(&m_mutex);
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}
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void
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Condition::lock()
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||||
{
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#ifdef DEBUG_CONDITION
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cerr << "CONDITION DEBUG: " << (void *)pthread_self() << ": Want to lock " << &m_condition << " \"" << m_name << "\"" << endl;
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#endif
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pthread_mutex_lock(&m_mutex);
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m_locked = true;
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#ifdef DEBUG_CONDITION
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cerr << "CONDITION DEBUG: " << (void *)pthread_self() << ": Locked " << &m_condition << " \"" << m_name << "\"" << endl;
|
||||
#endif
|
||||
}
|
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|
||||
void
|
||||
Condition::unlock()
|
||||
{
|
||||
if (!m_locked) {
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||||
#ifdef DEBUG_CONDITION
|
||||
cerr << "CONDITION DEBUG: " << (void *)pthread_self() << ": Not locked " << &m_condition << " \"" << m_name << "\"" << endl;
|
||||
#endif
|
||||
return;
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||||
}
|
||||
#ifdef DEBUG_CONDITION
|
||||
cerr << "CONDITION DEBUG: " << (void *)pthread_self() << ": Unlocking " << &m_condition << " \"" << m_name << "\"" << endl;
|
||||
#endif
|
||||
m_locked = false;
|
||||
pthread_mutex_unlock(&m_mutex);
|
||||
}
|
||||
|
||||
void
|
||||
Condition::wait(int us)
|
||||
{
|
||||
if (us == 0) {
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||||
|
||||
#ifdef DEBUG_CONDITION
|
||||
cerr << "CONDITION DEBUG: " << (void *)pthread_self() << ": Waiting on " << &m_condition << " \"" << m_name << "\"" << endl;
|
||||
#endif
|
||||
pthread_cond_wait(&m_condition, &m_mutex);
|
||||
|
||||
} else {
|
||||
|
||||
struct timeval now;
|
||||
gettimeofday(&now, 0);
|
||||
|
||||
now.tv_usec += us;
|
||||
while (now.tv_usec > 1000000) {
|
||||
now.tv_usec -= 1000000;
|
||||
++now.tv_sec;
|
||||
}
|
||||
|
||||
struct timespec timeout;
|
||||
timeout.tv_sec = now.tv_sec;
|
||||
timeout.tv_nsec = now.tv_usec * 1000;
|
||||
|
||||
#ifdef DEBUG_CONDITION
|
||||
cerr << "CONDITION DEBUG: " << (void *)pthread_self() << ": Timed waiting on " << &m_condition << " \"" << m_name << "\"" << endl;
|
||||
#endif
|
||||
pthread_cond_timedwait(&m_condition, &m_mutex, &timeout);
|
||||
}
|
||||
|
||||
#ifdef DEBUG_CONDITION
|
||||
cerr << "CONDITION DEBUG: " << (void *)pthread_self() << ": Wait done on " << &m_condition << " \"" << m_name << "\"" << endl;
|
||||
#endif
|
||||
|
||||
m_locked = true;
|
||||
}
|
||||
|
||||
void
|
||||
Condition::signal()
|
||||
{
|
||||
#ifdef DEBUG_CONDITION
|
||||
cerr << "CONDITION DEBUG: " << (void *)pthread_self() << ": Signalling " << &m_condition << " \"" << m_name << "\"" << endl;
|
||||
#endif
|
||||
pthread_cond_signal(&m_condition);
|
||||
}
|
||||
|
||||
#else /* !USE_PTHREADS */
|
||||
|
||||
Thread::Thread()
|
||||
{
|
||||
}
|
||||
|
||||
Thread::~Thread()
|
||||
{
|
||||
}
|
||||
|
||||
void
|
||||
Thread::start()
|
||||
{
|
||||
abort();
|
||||
}
|
||||
|
||||
void
|
||||
Thread::wait()
|
||||
{
|
||||
abort();
|
||||
}
|
||||
|
||||
Thread::Id
|
||||
Thread::id()
|
||||
{
|
||||
abort();
|
||||
}
|
||||
|
||||
bool
|
||||
Thread::threadingAvailable()
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
Mutex::Mutex()
|
||||
{
|
||||
}
|
||||
|
||||
Mutex::~Mutex()
|
||||
{
|
||||
}
|
||||
|
||||
void
|
||||
Mutex::lock()
|
||||
{
|
||||
abort();
|
||||
}
|
||||
|
||||
void
|
||||
Mutex::unlock()
|
||||
{
|
||||
abort();
|
||||
}
|
||||
|
||||
bool
|
||||
Mutex::trylock()
|
||||
{
|
||||
abort();
|
||||
}
|
||||
|
||||
Condition::Condition(const char *)
|
||||
{
|
||||
}
|
||||
|
||||
Condition::~Condition()
|
||||
{
|
||||
}
|
||||
|
||||
void
|
||||
Condition::lock()
|
||||
{
|
||||
abort();
|
||||
}
|
||||
|
||||
void
|
||||
Condition::wait(int us)
|
||||
{
|
||||
abort();
|
||||
}
|
||||
|
||||
void
|
||||
Condition::signal()
|
||||
{
|
||||
abort();
|
||||
}
|
||||
|
||||
#endif /* !USE_PTHREADS */
|
||||
#endif /* !_WIN32 */
|
||||
|
||||
MutexLocker::MutexLocker(Mutex *mutex) :
|
||||
m_mutex(mutex)
|
||||
{
|
||||
if (m_mutex) {
|
||||
m_mutex->lock();
|
||||
}
|
||||
}
|
||||
|
||||
MutexLocker::~MutexLocker()
|
||||
{
|
||||
if (m_mutex) {
|
||||
m_mutex->unlock();
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue