view base/Thread.cpp @ 1520:954d0cf29ca7 import-audio-data

Switch the normalisation option in WritableWaveFileModel from normalising on read to normalising on write, so that the saved file is already normalised and therefore can be read again without having to remember to normalise it

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006 Chris Cannam.
    
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
    published by the Free Software Foundation; either version 2 of the
    License, or (at your option) any later version.  See the file
    COPYING included with this distribution for more information.
*/

#include "Thread.h"

#ifndef _WIN32
#include <pthread.h>
#endif

//#define DEBUG_MUTEX_LOCKER 1

#include <iostream>

Thread::Thread(Type type, QObject *parent) :
    QThread(parent),
    m_type(type)
{
    setStackSize(512 * 1024);
}

void
Thread::start()
{
    QThread::start();

#ifndef _WIN32
    struct sched_param param;
    ::memset(&param, 0, sizeof(param));

    if (m_type == RTThread) {

        param.sched_priority = 5;

        if (::pthread_setschedparam(pthread_self(), SCHED_FIFO, &param)) {
            ::perror("INFO: pthread_setschedparam to SCHED_FIFO failed");
        }

    } else {

        if (::pthread_setschedparam(pthread_self(), SCHED_OTHER, &param)) {
            ::perror("WARNING: pthread_setschedparam to SCHED_OTHER failed");
        }
    }        

#endif
}

MutexLocker::MutexLocker(QMutex *mutex, const char *name) :
    m_profiler(name, false),
    m_printer(name),
    m_locker(mutex)
{
#ifdef DEBUG_MUTEX_LOCKER
    cerr << "... locked mutex " << mutex << endl;
#endif
    m_profiler.end();
}

MutexLocker::~MutexLocker()
{
}

MutexLocker::Printer::Printer(const char *name) :
    m_name(name)
{
#ifdef DEBUG_MUTEX_LOCKER
    cerr << "MutexLocker: Locking   \"" << m_name << "\" in "
              << (void *)QThread::currentThreadId() << endl;
#endif
}

MutexLocker::Printer::~Printer()
{
#ifdef DEBUG_MUTEX_LOCKER
    cerr << "MutexLocker: Unlocking \"" << m_name
              << "\" in " << (void *)QThread::currentThreadId() << endl;
#endif
}