KMemoryInfo Class Reference

#include <kmemoryinfo.h>

Public Member Functions
	KMemoryInfo ()
	KMemoryInfo (const KMemoryInfo &other)
quint64	availablePhysical () const
quint64	buffers () const
quint64	cached () const
quint64	freePhysical () const
quint64	freeSwapFile () const
bool	isNull () const
bool	operator!= (const KMemoryInfo &other) const
KMemoryInfo &	operator= (const KMemoryInfo &other)
bool	operator== (const KMemoryInfo &other) const
quint64	totalPhysical () const
quint64	totalSwapFile () const

Detailed Description

The KMemoryInfo class provides an interface to get memory information (RAM/SWAP).

To use the class, simply create an instance.

KMemoryInfo memInfo;
if (!memInfo.isNull()) {
    ...
}

Since

5.95

Definition at line 30 of file kmemoryinfo.h.

Constructor & Destructor Documentation

KMemoryInfo() [1/2]

KMemoryInfo::KMemoryInfo

(

)

KMemoryInfo Constructs a class with a snapshot of the state of the memory.

If an error occurs, a null object is returned.

See also

isNull.

Definition at line 52 of file kmemoryinfo.cpp.

KMemoryInfo() [2/2]

KMemoryInfo::KMemoryInfo

(

const KMemoryInfo &

other

)

KMemoryInfo Constructs a copy of the other memoryinfo.

Definition at line 62 of file kmemoryinfo.cpp.

Member Function Documentation

availablePhysical()

quint64 KMemoryInfo::availablePhysical

(

)

const

availablePhysical

The available memory is the free RAM without considering caches and buffers allocated by the operating system.

Note

You should always use this value to check if there is enough RAM for your data.

Returns

The memory available to the processes in bytes.

See also

freePhysical.

Definition at line 109 of file kmemoryinfo.cpp.

buffers()

quint64 KMemoryInfo::buffers

(

)

const

buffers

Returns

The size of RAM used as buffers in bytes. This value can be zero.

Definition at line 119 of file kmemoryinfo.cpp.

cached()

quint64 KMemoryInfo::cached

(

)

const

cached

Returns

The size of RAM used as cache in bytes.

Definition at line 114 of file kmemoryinfo.cpp.

freePhysical()

quint64 KMemoryInfo::freePhysical

(

)

const

freePhysical

The free memory is the amount of free RAM as reported by the operating system. This value is often tainted with caches and buffers used by the operating system, resulting in a low value.

Note

Don't use this value to determine if you have enough RAM for your data.

Returns

The free RAM reported by OS in bytes.

See also

availablePhysical.

Definition at line 104 of file kmemoryinfo.cpp.

freeSwapFile()

quint64 KMemoryInfo::freeSwapFile

(

)

const

freeSwapFile

Returns

The free swap size in bytes.

Definition at line 129 of file kmemoryinfo.cpp.

isNull()

bool KMemoryInfo::isNull

(

)

const

isNull

Returns

true if the class is null, otherwise false.

Definition at line 94 of file kmemoryinfo.cpp.

operator!=()

bool KMemoryInfo::operator!=

(

const KMemoryInfo &

other

)

const

operator !=

Returns

true if this memoryinfo is different from the other memoryinfo, otherwise false.

Definition at line 89 of file kmemoryinfo.cpp.

operator=()

KMemoryInfo & KMemoryInfo::operator=

(

const KMemoryInfo &

other

)

operator = Makes a copy of the other memoryinfo and returns a reference to the copy.

Definition at line 67 of file kmemoryinfo.cpp.

operator==()

bool KMemoryInfo::operator==

(

const KMemoryInfo &

other

)

const

operator ==

Returns

true if this memoryinfo is equal to the other memoryinfo, otherwise false.

Definition at line 73 of file kmemoryinfo.cpp.

totalPhysical()

quint64 KMemoryInfo::totalPhysical

(

)

const

totalPhysical

Returns

The total system RAM in bytes.

Definition at line 99 of file kmemoryinfo.cpp.

totalSwapFile()

quint64 KMemoryInfo::totalSwapFile

(

)

const

totalSwapFile

Returns

The size of swap file in bytes.

Note

On an operating system where the paging file is dynamically allocated, this value can be zero when no memory pages are swapped.

Definition at line 124 of file kmemoryinfo.cpp.

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

• kmemoryinfo.h
• kmemoryinfo.cpp