How to get drive size

Comments

13 Sep
2009

Article Review by User:FireSwarog (20090913)

This is a useful code snippet. It illustrates how to obtain information about size of a particular drive. This function could help you to make decision where to save important information. Also it could help you to realize necessary functionality in own file manager.

It works fine on my Nokia 5800.

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Article Metadata

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Article

Created: Den123 (26 Jun 2007)

Last edited: hamishwillee (30 May 2013)

Header:

#include <f32file.h>

Link against:

LIBRARY efsrv.lib

Capabilities:

CAPABILITY NONE

#include <e32base.h>
 
class ClassName
{
    public:
        static TInt GetDriveSizeInfoL(TChar aDriveChar, TInt64& aDriveTotalSize, TInt64& aDriveFreeSize);
};

#include <f32file.h>
 
TInt ClassName :: GetDriveSizeInfoL(TChar aDriveChar, TInt64& aDriveTotalSize, TInt64& aDriveFreeSize)
{
    TInt err = KErrNone;
 
    aDriveTotalSize = 0;
    aDriveFreeSize = 0;
 
    RFs fs;
    User::LeaveIfError( fs.Connect() );
 
    TInt driveIndex;
    err = RFs :: CharToDrive( aDriveChar, driveIndex );
    if(err == KErrNone)
    {
        TDriveInfo driveInfo;
        err = fs.Drive( driveInfo, driveIndex );
        if(err == KErrNone)
        {
            if(driveInfo.iMediaAtt & KMediaAttFormattable) // size defined only for formattable drives
            {
                TVolumeInfo volumeInfo;
                err = fs.Volume(volumeInfo, driveIndex);
                if(err == KErrNone)
                {
                    // now we can get drive size info
                    aDriveTotalSize = volumeInfo.iSize;
                    aDriveFreeSize = volumeInfo.iFree;
                }
            }
            else
                err = KErrArgument;
        }
        else
            err = KErrArgument;
    }
    fs.Close();
 
    return err;
}

How to use:

TInt64 size, freeSize;
if(ClassName::GetDriveSizeInfoL('C', size, freeSize)==KErrNone)
{
    ....
}