annotate base/Thread.cpp @ 109:61a2ac1241b3

* Make a single base Thread class for RT and non-RT threads * Pull ResizeableBitmap out from the MatrixFile's ColumnBitmap * Reorder SpectrogramLayer::paint somewhat so as to improve cache hit ratio in the FFT file cache
author Chris Cannam
date Mon, 08 May 2006 16:44:47 +0000
parents
children 85bf384db35f
rev   line source
Chris@109 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@109 2
Chris@109 3 /*
Chris@109 4 Sonic Visualiser
Chris@109 5 An audio file viewer and annotation editor.
Chris@109 6 Centre for Digital Music, Queen Mary, University of London.
Chris@109 7 This file copyright 2006 Chris Cannam.
Chris@109 8
Chris@109 9 This program is free software; you can redistribute it and/or
Chris@109 10 modify it under the terms of the GNU General Public License as
Chris@109 11 published by the Free Software Foundation; either version 2 of the
Chris@109 12 License, or (at your option) any later version. See the file
Chris@109 13 COPYING included with this distribution for more information.
Chris@109 14 */
Chris@109 15
Chris@109 16 #include "Thread.h"
Chris@109 17
Chris@109 18 #ifndef _WIN32
Chris@109 19 #include <pthread.h>
Chris@109 20 #endif
Chris@109 21
Chris@109 22 Thread::Thread(Type type, QObject *parent) :
Chris@109 23 QThread(parent),
Chris@109 24 m_type(type)
Chris@109 25 {
Chris@109 26 setStackSize(512 * 1024);
Chris@109 27 }
Chris@109 28
Chris@109 29 void
Chris@109 30 Thread::start()
Chris@109 31 {
Chris@109 32 QThread::start();
Chris@109 33
Chris@109 34 #ifndef _WIN32
Chris@109 35 struct sched_param param;
Chris@109 36 ::memset(&param, 0, sizeof(param));
Chris@109 37
Chris@109 38 if (m_type == RTThread) {
Chris@109 39
Chris@109 40 param.sched_priority = 5;
Chris@109 41
Chris@109 42 if (::pthread_setschedparam(pthread_self(), SCHED_FIFO, &param)) {
Chris@109 43 ::perror("INFO: pthread_setschedparam to SCHED_FIFO failed");
Chris@109 44 }
Chris@109 45
Chris@109 46 } else {
Chris@109 47
Chris@109 48 if (::pthread_setschedparam(pthread_self(), SCHED_OTHER, &param)) {
Chris@109 49 ::perror("WARNING: pthread_setschedparam to SCHED_OTHER failed");
Chris@109 50 }
Chris@109 51 }
Chris@109 52
Chris@109 53 #endif
Chris@109 54 }
Chris@109 55