Function tcsetpgrp [src]

Sets the controlling process group ID for given TTY. handle must be valid fd_t to a TTY associated with calling process. pgrp must be a valid process group, and the calling process must be a member of that group.

Prototype

pub fn tcsetpgrp(handle: fd_t, pgrp: pid_t) TermioSetPgrpError!void

Parameters

handle: fd_tpgrp: pid_t

Possible Errors

NotAPgrpMember

NotATerminal TIOCError

Unexpected UnexpectedError

The Operating System returned an undocumented error code.

This error is in theory not possible, but it would be better to handle this error than to invoke undefined behavior.

When this error code is observed, it usually means the Zig Standard Library needs a small patch to add the error code to the error set for the respective function.

Source

  pub fn tcsetpgrp(handle: fd_t, pgrp: pid_t) TermioSetPgrpError!void {
    while (true) {
        switch (errno(system.tcsetpgrp(handle, &pgrp))) {
            .SUCCESS => return,
            .BADF => unreachable,
            .INVAL => unreachable,
            .INTR => continue,
            .NOTTY => return error.NotATerminal,
            .PERM => return TermioSetPgrpError.NotAPgrpMember,
            else => |err| return unexpectedErrno(err),
        }
    }
}  