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[noob] sysfile_write() empty file
Jun 20 2013 | 10:52 pm
I am trying to understand the reading and writing portions of the SDK and am having trouble with the sysfile_write(). I got sysfile_writetextfile() to work but am stuck with this.
I followed the documentation but the resulting textfile, while 100 bytes large, is empty. Here is the code:
void buffTest_writefile(t_buffTest *x, char *filename, short path)
{
char *buf[100];
t_fourcc filetype = 'TEXT';
t_ptr_size count;
long err;
t_filehandle fh;
for (int i = 0; i < 100; i++) {
buf[i] = i + 1;
}
count = 100;
err = path_createsysfile(filename, path, filetype, &fh);
if (err)
return;
err = sysfile_write(fh, &count, buf);
sysfile_close(fh);
}
Any pointers would be appreciated ;)
Max 6.1.3
SDK. 6.1.1
OSX 10.8.4
- Jun 20 2013 | 10:56 pm... and while I am here. Why is there a short numtype = 1; in the example? It is never used as far as I can tell...
- Jun 20 2013 | 11:17 pmthe code is questionable. I am unsure what you are trying to do, but I see several concerns.char *buf[100] that creates an array of 100 slots where each slot is a pointer to a char I suspect, you intend to declare it instead to be: char buf[100];later in the code, you pass buf to sysfile_write. buf means the pointer to the first element of buf. So its a pointer to a pointer. And that's weird. Not what you probably want to give to sysfile_write.Also, the 2nd param to sysfile_write should be a pointer to a long. Therefore, I would declare it to be: long count; and then call it like this: err = sysfile_write(fh, &count, buf);
- Jun 20 2013 | 11:24 pmAh, I could be wrong. The SDK doc is wrong on this topic area so you might have to experiment. Also read this post https://cycling74.com/forums/problem-with-sysfile_writetextfile/
- Jun 20 2013 | 11:24 pmaccording to the .h file it's not a long but like this t_max_err sysfile_write(t_filehandle f, t_ptr_size *count, const void *bufptr);not sure about the buf thing... it's straight out of the SDK help... not sure what to do about that.
- Jun 20 2013 | 11:25 pmalready tried that, thanks.
- Jun 20 2013 | 11:32 pmnot sure this will help, but here is the resulting .txt file.
