I noticed I had to fix all those FS_r_all and the array-stuff too, just
to support offset for all files. I'm almost done and will checkin the
other changes later tonight or tomorrow morning.
/Christian
On Wed, 2005-06-22 at 14:23 +0200, Christian Magnusson wrote:
> The problem is basically that offset wasn't supported in ow_read.c
> for all types.
>
> Two system calls where made when reading 10.061847000800/temperature.
> First read return 15 bytes, and the second call was reading from
> offset=15 and returned errno=-ENOTAVAIL according to the owfs source.
> I have added offset-support now and it just return 0 if
> offset==filesize since there are no more bytes to read.
>
> I noticed some other really nasty things with the char-buffer "c" in:
> FS_output_unsigned( unsigned int value, char * buf, const size_t size,
> const struct parsedname * pn ) {
> int suglen = FileLength(pn);
> char c[suglen+2];
> ....
> }
>
> After returning from the function, the variable "const size_t size"
> was corrupted! I have changed those buffers to mallocs instead just
> to get rid of the problem.
> Adding some debug-output in FS_parse_read() before and after the
> call to FS_output_unsigned() will show the problem.
>
>
> It's also possible to use fseek() now when reading from the files
> if somebody wants...
>
>
> if(!(fp = fopen("/var/1wire/statistics/read/bytes", "r")))
> exit(0);
> rc = fseek(fp, 8, SEEK_SET);
> if(rc) {
> printf("fseek returned %d\n", rc);
> exit(0);
> }
> pos = 0;
> do {
> if((sz = fread(&tmp[pos], 1, 1, fp)) <= 0) {
> tmp[pos] = 0;
> break;
> }
> pos++;
> } while(1);
> fclose(fp);
>
>
> /Christian
>
>
> On Wed, 2005-06-22 at 09:40 +0200, Christian Magnusson wrote:
> > I noticed some strange behavior with the direct_io flag in fuse. My
> > "cat" return an errno "Cannot assign requested address" after reading a
> > sensor, but "tail" works ok.. I haven't figured out why yet, but
> > it's something to fix.
> >
> > /Christian
> >
> >
> > > owfs --fuse_opt="direct_io" -P /var/run/owfs.pid -s
> > 192.168.1.10:3002 /var/1wire/
> >
> > > cat /var/1wire/10.061847000800/temperature
> > 25.1875cat: /var/1wire/10.061847000800/temperature: Cannot assign
> > requested address
> > >
> > > tail /var/1wire/uncached/10.061847000800/temperature
> > [EMAIL PROTECTED] ~]#
> > >
> > > cat /var/1wire/10.061847000800/temperature
> > 25.1875cat: /var/1wire/10.061847000800/temperature: Cannot assign
> > requested address
> >
> >
--
Christian Magnusson <[EMAIL PROTECTED]>
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