Hi
Some fast code: compiled, but not tested...
#define memNewChunkFlagNonMovable 0x0200
#define memNewChunkFlagAllowLarge 0x1000 // this is not in the sdk
SysAppInfoPtr
SysGetAppInfo(SysAppInfoPtr *uiAppPP, SysAppInfoPtr *actionCodeAppPP)
SYS_TRAP(sysTrapSysGetAppInfo);
// You can use another alloc method instead
void *MemPtrNew_large( Int32 size)
{
if( size > 65500 ) // the max MemPtrNew will give
{
SysAppInfoPtr appInfoP;
UInt16 ownerID = ((SysAppInfoPtr) SysGetAppInfo(&appInfoP,
&appInfoP))->memOwnerID;
return MemChunkNew(0, size, ownerID | memNewChunkFlagNonMovable |
memNewChunkFlagAllowLarge);
}
else
return MemPtrNew(size);
}
char *ReadSomeFile( UInt16 volNum, const Char *fullPath, int *error, UInt32
*fSize )
{
FileRef hFile ;
char *buffer = NULL ;
// Open source file
*error = VFSFileOpen( volNum, fullPath, vfsModeRead, &hFile ) ;
if( *error != 0 )
return NULL ;
// Get file length
*error = VFSFileSize( hFile, fSize ) ;
if( *error == 0 && *fSize == 0 )
*error = -1 ; // empty file, define some error code here
if( *error == 0 )
{
UInt32 nRead=0 ;
UInt32 toRead=*fSize ;
buffer = MemPtrNew_large( *fSize ) ;
if( buffer == NULL )
*error = memErrNotEnoughSpace ;
while( *error==0 && toRead>0 )
{
UInt32 nBytesRead ;
*error = VFSFileRead( hFile, toRead, buffer+nRead, &nBytesRead) ;
nRead += nBytesRead ;
toRead -= nBytesRead ;
}
}
VFSFileClose( hFile ) ;
if( *error != 0 && buffer != NULL )
MemPtrFree( buffer ) ;
return buffer ;
}
Regards,
Jan Slodicka
----- Original Message -----
From: "Anders Rahm-Nilzon" <[EMAIL PROTECTED]>
Newsgroups: palm-dev-forum
To: "Palm Developer Forum" <[EMAIL PROTECTED]>
Sent: Monday, January 05, 2004 11:09 PM
Subject: Re: VFSFileRead
> Hi Jan,
>
> I think that I have tested that but I get NULL as the return value from
> VFSFileRead ?
> Can you show me how you should do that loop ???
> Please help me!
> So many thanks !!!
> \Anders R-N
>
>
>
> --
> For information on using the Palm Developer Forums, or to unsubscribe,
please see http://www.palmos.com/dev/support/forums/
--
For information on using the Palm Developer Forums, or to unsubscribe, please see
http://www.palmos.com/dev/support/forums/
