The ProcessMonitor class grants access to processes memory and CPU usage. More...

#include <ProcessMonitor.h>

Inheritance diagram for icl::utils::ProcessMonitor:

Classes
struct	Info
	Utility struct, that is used to pass available information at once. More...
Public Types
typedef Function< void, const Info & >	Callback
	callback function/functor type
Public Member Functions
	~ProcessMonitor ()
	Destructor.
virtual void	run ()
	implements the Thread::run method
Info	getInfo () const
	synchronized access to last queried data
int	registerCallback (Callback cb)
	registers a callback instance that is automatically called when new data is available
void	removeCallback (int id)
	removes a callback registered before
void	removeAllCallbacks ()
	removes all registered callbacks
Static Public Member Functions
static ProcessMonitor *	getInstance ()
	returns the singelton instance
Protected Member Functions
	ProcessMonitor ()
	Create a new instance.
Private Attributes
Data *	m_data
	internal data pointer

Detailed Description

The ProcessMonitor class grants access to processes memory and CPU usage.

Since querying process specific information is not standardized in C++, Only a Linux solution is provided yet.

Source of the Information

The pid is obtained via getpid() numThreads and memoryUsage is obtained by parsing /proc/self/stats memoryUsage is obtained by reading a piped 'ps' processes output since querying information an in particular waiting for 'ps' output takes some time, all the information is collected in a dedicated thread. numCPUs is queried once at construction time by parsing /proc/processor allCPU usage is also queried by parsing the piped 'ps' output

Callbacks

Since sometimes, an application wants to do something, when new information is available, a callback mechanism is provided as well. Simply register an icl::Function instance that is then called whenever a new set of data is available.

Member Typedef Documentation

typedef Function<void,const Info&> icl::utils::ProcessMonitor::Callback

callback function/functor type

Constructor & Destructor Documentation

icl::utils::ProcessMonitor::ProcessMonitor ( ) [protected]

Create a new instance.

icl::utils::ProcessMonitor::~ProcessMonitor ( )

Destructor.

Member Function Documentation

Info icl::utils::ProcessMonitor::getInfo ( ) const

synchronized access to last queried data

static ProcessMonitor* icl::utils::ProcessMonitor::getInstance ( ) [static]

returns the singelton instance

int icl::utils::ProcessMonitor::registerCallback ( Callback cb )

registers a callback instance that is automatically called when new data is available

returns a callback ID

void icl::utils::ProcessMonitor::removeAllCallbacks ( )

removes all registered callbacks

void icl::utils::ProcessMonitor::removeCallback ( int id )

removes a callback registered before

virtual void icl::utils::ProcessMonitor::run ( ) [virtual]

implements the Thread::run method

Implements icl::utils::Thread.

Member Data Documentation

Data* icl::utils::ProcessMonitor::m_data [private]

internal data pointer

The documentation for this class was generated from the following file:

/home/jenkins/workspace/icl-manual-trunk/icl-manual/ICLUtils/src/ICLUtils/ProcessMonitor.h

Classes

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions