I tested it (code to copy a file below, file was > 4
GB) and it works.
I'm using Gentoo 2006.0, Linux 2.6.15.1, ReiserFS 3
and wine 0.9.15.
Can you find out whether the broken code is using
KERNEL32, NTDLL, MSVCRT streams or MSVCRT POSIX-style
open()/read() etc.?
#include
#include
int main(int argc, char **argv)
{
HANDLE inputFile = INVALID_HANDLE_VALUE, outputFile =
INVALID_HANDLE_VALUE;
const int bufferSize = 8*1024;
char buffer[bufferSize];
DWORD bytesRead;
BOOL ok;
if (argc < 3)
{
fprintf(stderr, "Usage: %s source destination\n",
argv[0]);
return 1;
}
inputFile = CreateFile(argv[1], GENERIC_READ,
FILE_SHARE_READ, NULL,
OPEN_EXISTING, 0, NULL);
if (inputFile == INVALID_HANDLE_VALUE)
{
fprintf(stderr, "Error opening %s\n", argv[1]);
goto done;
}
outputFile = CreateFile(argv[2], GENERIC_WRITE, 0,
NULL,
CREATE_ALWAYS, 0, NULL);
if (outputFile == INVALID_HANDLE_VALUE)
{
fprintf(stderr, "Error opening %s\n", argv[2]);
goto done;
}
ok = ReadFile(inputFile, buffer, bufferSize,
&bytesRead, NULL);
if (!ok)
{
fprintf(stderr, "Error reading file\n");
goto done;
}
while (bytesRead > 0)
{
DWORD bytesWritten = 0, bytesWrittenNow;
do
{
ok = WriteFile(outputFile, buffer, bytesRead,
&bytesWrittenNow,
NULL);
if (!ok)
{
fprintf(stderr, "Error writing file\n");
goto done;
}
bytesWritten += bytesWrittenNow;
} while (bytesWritten < bytesRead);
ok = ReadFile(inputFile, buffer, bufferSize,
&bytesRead, NULL);
if (!ok)
{
fprintf(stderr, "Error reading file\n");
goto done;
}
};
done:
if (inputFile != INVALID_HANDLE_VALUE)
CloseHandle(inputFile);
if (outputFile != INVALID_HANDLE_VALUE)
CloseHandle(outputFile);
return 0;
}
--- John Willis <[EMAIL PROTECTED]> wrote:
> Damjan,
>
> Linux kernel: 2.4.21-20.ELsmp
> Filesystem:ext3
>
> Thanks for looking into this for me,
>
> John
>
> - Original Message -
> From: "Damjan Jovanovic" <[EMAIL PROTECTED]>
> To: "John Willis" <[EMAIL PROTECTED]>;
>
> Sent: Sunday, June 25, 2006 11:31 PM
> Subject: Re: Very large files
>
>
> >
> >
> > --- John Willis <[EMAIL PROTECTED]> wrote:
> >
> >> Howdy,
> >>
> >> I have a large VS 6.0 C++ program and I'm running
> it
> >> under WINE under Redhat Linux.
> >> Everything works fine, but it doesn't handle file
> >> sizes greater than 4gb like it can running
> >> directly under Windows XP.
> >> I've tweaked everything that I can find that
> seems
> >> to deal with file sizes.
> >
> > How do you access the file? With stdio streams
> > (fopen(), fread(), ...), MSVCRT's open()/read(),
> or
> > with KERNEL32's CreateFile(), ReadFile(), ... ?
> >
> >> Is there a problem with WINE itself handling very
> >> large file sizes?
> >
> > Which version of the Linux kernel and which
> filesystem
> > are you using?
> >
> > I'll run some tests at home and see whether it
> works
> > for me.
> >
> >> Thanks in advance,
> >> John>
> >>
> >
> >
> > __
> > Do You Yahoo!?
> > Tired of spam? Yahoo! Mail has the best spam
> protection around
> > http://mail.yahoo.com
>
__
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