The Nebula Device 3: OSX::OSXThread Class Reference

The Nebula Device 3

OSX::OSXThread Class Reference

#include <osxthread.h>

Inheritance diagram for OSX::OSXThread:

Core::RefCounted

Detailed Description

OSX implementation of Threading::Thread. Uses the pthread API.

(C) 2010 Radon Labs GmbH

Public Types

enum  Priority
 thread priorities

Public Member Functions

 OSXThread ()
 constructor
virtual ~OSXThread ()
 destructor
void SetPriority (Priority p)
 set the thread priority
Priority GetPriority () const
 get the thread priority
void SetCoreId (System::Cpu::CoreId coreId)
 set cpu core on which the thread should be running
System::Cpu::CoreId GetCoreId () const
 get the cpu core on which the thread should be running
void SetStackSize (SizeT s)
 set stack size in bytes (default is 4 KByte)
SizeT GetStackSize () const
 get stack size
void SetName (const Util::String &n)
 set thread name
const Util::StringGetName () const
 get thread name
void Start ()
 start executing the thread code, returns when thread has actually started
void Stop ()
 request threading code to stop, returns when thread has actually finished
bool IsRunning () const
 return true if thread has been started
int GetRefCount () const
 get the current refcount
void AddRef ()
 increment refcount by one
void Release ()
 decrement refcount and destroy object if refcount is zero
bool IsInstanceOf (const Rtti &rtti) const
 return true if this object is instance of given class
bool IsInstanceOf (const Util::String &className) const
 return true if this object is instance of given class by string
bool IsInstanceOf (const Util::FourCC &classFourCC) const
 return true if this object is instance of given class by fourcc
bool IsA (const Rtti &rtti) const
 return true if this object is instance of given class, or a derived class
bool IsA (const Util::String &rttiName) const
 return true if this object is instance of given class, or a derived class, by string
bool IsA (const Util::FourCC &rttiFourCC) const
 return true if this object is instance of given class, or a derived class, by fourcc
const Util::StringGetClassName () const
 get the class name
Util::FourCC GetClassFourCC () const
 get the class FourCC code

Static Public Member Functions

static void YieldThread ()
 yield the thread (gives up current time slice)
static Threading::ThreadId GetMyThreadId ()
 get the thread ID of this thread
static void DumpRefCountingLeaks ()
 dump refcounting leaks, call at end of application (NEBULA3_DEBUG builds only!)

Protected Member Functions

virtual void EmitWakeupSignal ()
 override this method if your thread loop needs a wakeup call before stopping
virtual void DoWork ()
 this method runs in the thread context
bool ThreadStopRequested () const
 check if stop is requested, call from DoWork() to see if the thread proc should quit

Member Function Documentation

void OSX::OSXThread::SetName ( const Util::String n  )  [inline]

set thread name

Set the thread's name.

const Util::String & OSX::OSXThread::GetName (  )  const [inline]

get thread name

Get the thread's name. This is the vanilla method which returns the name member.

void OSX::OSXThread::Stop (  ) 

request threading code to stop, returns when thread has actually finished

This stops the thread by signalling the stopRequestEvent and waits for the thread to actually quit. If the thread code runs in a loop it should use the IsStopRequested() method to see if the thread object wants it to shutdown. If so DoWork() should simply return.

bool OSX::OSXThread::IsRunning (  )  const

return true if thread has been started

Returns true if the thread is currently running.

void OSX::OSXThread::YieldThread (  )  [static]

yield the thread (gives up current time slice)

Give up time slice.

Threading::ThreadId OSX::OSXThread::GetMyThreadId (  )  [static]

get the thread ID of this thread

Static method which returns the ThreadId of this thread.

void OSX::OSXThread::EmitWakeupSignal (  )  [protected, virtual]

override this method if your thread loop needs a wakeup call before stopping

This method is called by Thread::Stop() after setting the stopRequest event and before waiting for the thread to stop. If your thread runs a loop and waits for jobs it may need an extra wakeup signal to stop waiting and check for the ThreadStopRequested() event. In this case, override this method and signal your event object.

void OSX::OSXThread::DoWork (  )  [protected, virtual]

this method runs in the thread context

This method should be derived in a Thread subclass and contains the actual code which is run in the thread. The method must not call C-Lib functions under Win32. To terminate the thread, just return from this function. If DoWork() runs in an infinite loop, call ThreadStopRequested() to check whether the Thread object wants the thread code to quit.

bool OSX::OSXThread::ThreadStopRequested (  )  const [inline, protected]

check if stop is requested, call from DoWork() to see if the thread proc should quit

If the derived DoWork() method is running in a loop it must regularly check if the process wants the thread to terminate by calling ThreadStopRequested() and simply return if the result is true. This will cause the thread to shut down.

int Core::RefCounted::GetRefCount (  )  const [inline, inherited]

get the current refcount

Return the current refcount of the object.

void Core::RefCounted::AddRef (  )  [inline, inherited]

increment refcount by one

Increment the refcount of the object.

void Core::RefCounted::Release (  )  [inline, inherited]

decrement refcount and destroy object if refcount is zero

Decrement the refcount and destroy object if refcount is zero.

const Util::String & Core::RefCounted::GetClassName (  )  const [inline, inherited]

get the class name

Get the class name of the object.

Util::FourCC Core::RefCounted::GetClassFourCC (  )  const [inline, inherited]

get the class FourCC code

Get the class FourCC of the object.

void Core::RefCounted::DumpRefCountingLeaks (  )  [static, inherited]

dump refcounting leaks, call at end of application (NEBULA3_DEBUG builds only!)

This method should be called as the very last before an application exits.