TIOCGETPGRP, TIOCGPGRP
QNX SDP8.0Devctl and Ioctl CommandsDeveloper
Get the process group ID associated with a device
Synopsis:
#include <sys/ioctl.h>
#define TIOCGPGRP _IOR('t', 119, int)
#define TIOCGETPGRP _IOR('t', 131, int)
Arguments to ioctl():
Argument | Value |
---|---|
fd | A file descriptor that you obtained by opening the device |
request | TIOCGETPGRP or TIOCGPGRP |
Additional argument | A pointer to an int |
Description:
These commands get the process group ID associated with a device. They're also implemented as the DCMD_CHR_TCGETPGRP devctl() command.
Note:
These commands are for internal use, and you shouldn't use them directly.
Instead use the
tcgetpgrp()
cover function.
Input:
None.
Output:
The process group ID.
See also:
DCMD_CHR_TCGETPGRP, TIOCSETPGRP, TIOCSPGRP
ioctl() in the QNX OS C Library Reference
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