DCMD_CHR_TCGETSID

QNX SDP8.0Devctl and Ioctl CommandsDeveloper

Get the process group ID of a controlling terminal's session leader

Synopsis:

#include <sys/dcmd_chr.h>

#define DCMD_CHR_TCGETSID   __DIOF(_DCMD_CHR, 7, pid_t)

Arguments to devctl():

Argument Value
filedes A file descriptor that you obtained by opening the device.
dcmd DCMD_CHR_TCGETSID
dev_data_ptr A pointer to a pid_t
n_bytes sizeof(pid_t)
dev_info_ptr NULL

Description:

This command gets the process group ID of the session leader for a controlling terminal.

Note:
This command is for internal use, and you shouldn't use it directly. Instead use the tcgetsid() cover function.

Input:

None.

Output:

The process group ID.

See also:

DCMD_CHR_TCSETSID

devctl(), tcgetsid() in the QNX OS C Library Reference

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