NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | ATTRIBUTES | SEE ALSO
#include <unistd.h>int tcsetpgrp(int fildes, pid_t pgid);
The tcsetpgrp() function sets the foreground process group ID of the terminal specified by fildes to pgid. The file associated with fildes must be the controlling terminal of the calling process and the controlling terminal must be currently associated with the session of the calling process. The value of pgid must match a process group ID of a process in the same session as the calling process.
Upon successful completion, tcsetpgrp() returns 0. Otherwise, -1 is returned and errno is set to indicate the error.
The tcsetpgrp() function will fail if:
The fildes argument is not a valid file descriptor.
The fildes argument is a terminal that does not support tcsetpgrp(), or pgid is not a valid process group ID.
The process is not ignoring or holding SIGTTOU
and is a member of an orphaned process group.
The calling process does not have a controlling terminal, or the file is not the controlling terminal, or the controlling terminal is no longer associated with the session of the calling process.
The value of pgid does not match the process group ID of an existing process in the same session as the calling process.
See attributes(5) for descriptions of the following attributes:
ATTRIBUTE TYPE | ATTRIBUTE VALUE |
---|---|
MT-Level | MT-Safe |
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | ATTRIBUTES | SEE ALSO