Tejun Heo wrote:
> Quite some number of ODDs don't seem to like the way hald polls them. I
> don't think other apps will be affected by this. I dunno much about
> hald and don't have enough time to chase it down myself but feel free to
> cc me when reporting this to hald people. I'll try to help as much as I
> can.
>
> Thanks.
>
> --
> tejun
>
I've attached the test programs that I wrote about earlier. cdstatus.c causes
a timeout after a few hours but cdstatus_working.c doesn't seem to get a
timeout. The timeout always occurs during open.
--
Matthew Stapleton
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <stdio.h>
#include <unistd.h>
#include <linux/cdrom.h>
int main(void) {
int fd, capabilities, drive;
char *cddrive = "/dev/cdrom";
while (1) {
printf("Opening %s\n", cddrive);
fd = open (cddrive, O_RDONLY | O_NONBLOCK);
if (fd < 0) {
printf("Error\n");
return 1;
}
printf("Sleeping\n");
sleep(1);
printf("Closing %s\n", cddrive);
close(fd);
printf("Sleeping\n");
sleep(1);
}
return 0;
}
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <stdio.h>
#include <unistd.h>
#include <linux/cdrom.h>
int main(void) {
int fd, capabilities, drive;
char *cddrive = "/dev/cdrom";
printf("Opening %s\n", cddrive);
fd = open (cddrive, O_RDONLY | O_NONBLOCK);
if (fd < 0) {
printf("Error\n");
return 1;
}
while (1) {
ioctl (fd, CDROM_SET_OPTIONS, CDO_USE_FFLAGS);
capabilities = ioctl (fd, CDROM_GET_CAPABILITY, 0);
drive = ioctl (fd, CDROM_DRIVE_STATUS, CDSL_CURRENT);
printf("capabilities=0x%08X, drive=0x%08X\n", capabilities, drive);
sleep(1);
}
close(fd);
return 0;
}
