Ocean::System::Process Class Reference

This class implements basic functions related with the application process. More...

Inheritance diagram for Ocean::System::Process:

Public Types
enum	ProcessPriority {   PRIORITY_IDLE , PRIORITY_BELOW_NORMAL , PRIORITY_NORMAL , PRIORITY_ABOVE_NORMAL ,   PRIORITY_HIGH , PRIORITY_REALTIME }
	Definition of different process priority values. More...

Public Member Functions
float	currentProcessorLoad () const
	Returns the processor load since the last call to this function. More...
float	averageProcessorLoad () const
	Returns the average processor load of this process since the creation. More...

Static Public Member Functions
static double	entireProcessorTime ()
	Returns the entire processor time of this process since the creation. More...
static double	entireProcessLiveTime ()
	Returns the live time of this process since the creation. More...
static long long	processStartTime ()
	Returns the start time of this process since 01.01.1970 00:00:00 in UTC time. More...
static ProcessPriority	priority ()
	Returns the priority of the process. More...
static bool	setPriority (const ProcessPriority priority)
	Sets the priority of the process. More...
static unsigned int	currentProcessId ()
	Returns the process id of the current (calling) process. More...
Static Public Member Functions inherited from Ocean::Singleton< Process >
static Process &	get ()
	Returns a reference to the unique object. More...

Private Member Functions
	Process ()
	Creates a new process object. More...

Private Attributes
int64_t	loadTimestamp_ = 0ll
	Time of most recent processor load request. More...
int64_t	loadTime_ = 0ll
	Processor user time of most recent processor load request. More...
const unsigned int	numberCores_ = 0u
	Number of real CPU cores available in this system. More...

Friends
class	Singleton< Process >

Additional Inherited Members
Protected Member Functions inherited from Ocean::Singleton< Process >
	Singleton ()=default
	Default constructor. More...

Detailed Description

This class implements basic functions related with the application process.

Member Enumeration Documentation

ProcessPriority

enum Ocean::System::Process::ProcessPriority

Definition of different process priority values.

Enumerator
PRIORITY_IDLE	The process runs if the system is idle.
PRIORITY_BELOW_NORMAL	The process has a priority below normal.
PRIORITY_NORMAL	The process has a normal priority.
PRIORITY_ABOVE_NORMAL	The process has a priority above normal.
PRIORITY_HIGH	The process has a high priority.
PRIORITY_REALTIME	The process has a realtime priority.

Constructor & Destructor Documentation

Process()

Ocean::System::Process::Process ( )

private

Creates a new process object.

As this class is a singleton get access to this object by the singleton.

Member Function Documentation

averageProcessorLoad()

float Ocean::System::Process::averageProcessorLoad

(

)

const

Returns the average processor load of this process since the creation.

Returns

Average processor load in percent, with range [0.0, 1.0]

currentProcessId()

static unsigned int Ocean::System::Process::currentProcessId ( )

static

Returns the process id of the current (calling) process.

Returns

The process id of the current process

currentProcessorLoad()

float Ocean::System::Process::currentProcessorLoad

(

)

const

Returns the processor load since the last call to this function.

Returns

Current processor load in percent, with range [0.0, 1.0]

entireProcessLiveTime()

static double Ocean::System::Process::entireProcessLiveTime ( )

static

Returns the live time of this process since the creation.

Returns

Live time in seconds

entireProcessorTime()

static double Ocean::System::Process::entireProcessorTime ( )

static

Returns the entire processor time of this process since the creation.

Returns

Entire processor time in seconds

priority()

static ProcessPriority Ocean::System::Process::priority ( )

static

Returns the priority of the process.

Returns

Process priority

Exceptions

NotSupportedException

Is thrown if this function is not supported

processStartTime()

static long long Ocean::System::Process::processStartTime ( )

static

Returns the start time of this process since 01.01.1970 00:00:00 in UTC time.

Returns

Start time in microseconds

setPriority()

static bool Ocean::System::Process::setPriority ( const ProcessPriority  priority )

static

Sets the priority of the process.

Parameters

priority

Process priority to set

Returns

True, if succeeded

Friends And Related Function Documentation

Singleton< Process >

friend class Singleton< Process >

friend

Field Documentation

loadTime_

int64_t Ocean::System::Process::loadTime_ = 0ll

mutableprivate

Processor user time of most recent processor load request.

loadTimestamp_

int64_t Ocean::System::Process::loadTimestamp_ = 0ll

mutableprivate

Time of most recent processor load request.

numberCores_

const unsigned int Ocean::System::Process::numberCores_ = 0u

private

Number of real CPU cores available in this system.

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

• Process.h