87 lines
3.1 KiB
C++
Executable File
87 lines
3.1 KiB
C++
Executable File
/**********
|
|
This library is free software; you can redistribute it and/or modify it under
|
|
the terms of the GNU Lesser General Public License as published by the
|
|
Free Software Foundation; either version 2.1 of the License, or (at your
|
|
option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)
|
|
|
|
This library is distributed in the hope that it will be useful, but WITHOUT
|
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
|
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
|
|
more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with this library; if not, write to the Free Software Foundation, Inc.,
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
**********/
|
|
// Copyright (c) 1996-2015 Live Networks, Inc. All rights reserved.
|
|
// Basic Usage Environment: for a simple, non-scripted, console application
|
|
// C++ header
|
|
|
|
#ifndef _BASIC_USAGE_ENVIRONMENT_HH
|
|
#define _BASIC_USAGE_ENVIRONMENT_HH
|
|
|
|
#ifndef _BASIC_USAGE_ENVIRONMENT0_HH
|
|
#include "BasicUsageEnvironment0.hh"
|
|
#endif
|
|
|
|
class BasicUsageEnvironment: public BasicUsageEnvironment0 {
|
|
public:
|
|
static BasicUsageEnvironment* createNew(TaskScheduler& taskScheduler);
|
|
|
|
// redefined virtual functions:
|
|
virtual int getErrno() const;
|
|
|
|
virtual UsageEnvironment& operator<<(char const* str);
|
|
virtual UsageEnvironment& operator<<(int i);
|
|
virtual UsageEnvironment& operator<<(unsigned u);
|
|
virtual UsageEnvironment& operator<<(double d);
|
|
virtual UsageEnvironment& operator<<(void* p);
|
|
|
|
protected:
|
|
BasicUsageEnvironment(TaskScheduler& taskScheduler);
|
|
// called only by "createNew()" (or subclass constructors)
|
|
virtual ~BasicUsageEnvironment();
|
|
};
|
|
|
|
|
|
class BasicTaskScheduler: public BasicTaskScheduler0 {
|
|
public:
|
|
static BasicTaskScheduler* createNew(unsigned maxSchedulerGranularity = 10000/*microseconds*/);
|
|
// "maxSchedulerGranularity" (default value: 10 ms) specifies the maximum time that we wait (in "select()") before
|
|
// returning to the event loop to handle non-socket or non-timer-based events, such as 'triggered events'.
|
|
// You can change this is you wish (but only if you know what you're doing!), or set it to 0, to specify no such maximum time.
|
|
// (You should set it to 0 only if you know that you will not be using 'event triggers'.)
|
|
virtual ~BasicTaskScheduler();
|
|
|
|
protected:
|
|
BasicTaskScheduler(unsigned maxSchedulerGranularity);
|
|
// called only by "createNew()"
|
|
|
|
static void schedulerTickTask(void* clientData);
|
|
void schedulerTickTask();
|
|
|
|
protected:
|
|
// Redefined virtual functions:
|
|
virtual void SingleStep(unsigned maxDelayTime);
|
|
|
|
virtual void setBackgroundHandling(int socketNum, int conditionSet, BackgroundHandlerProc* handlerProc, void* clientData);
|
|
virtual void moveSocketHandling(int oldSocketNum, int newSocketNum);
|
|
|
|
protected:
|
|
unsigned fMaxSchedulerGranularity;
|
|
|
|
// To implement background operations:
|
|
int fMaxNumSockets;
|
|
fd_set fReadSet;
|
|
fd_set fWriteSet;
|
|
fd_set fExceptionSet;
|
|
|
|
private:
|
|
#if defined(__WIN32__) || defined(_WIN32)
|
|
// Hack to work around a bug in Windows' "select()" implementation:
|
|
int fDummySocketNum;
|
|
#endif
|
|
};
|
|
|
|
#endif
|