int setup_child_process(job_t *j, process_t *p, const io_chain_t &io_chain)
{
bool ok=true;
if (p)
{
ok = (0 == set_child_group(j, p, 1));
}
if (ok)
{
ok = (0 == handle_child_io(io_chain));
if (p != 0 && ! ok)
{
exit_without_destructors(1);
}
}
/* Set the handling for job control signals back to the default. */
if (ok)
{
signal_reset_handlers();
}
/* Remove all signal blocks */
signal_unblock();
return ok ? 0 : -1;
}
/**
Initialize a new child process. This should be called right away
after forking in the child process. If job control is enabled for
this job, the process is put in the process group of the job, all
signal handlers are reset, signals are unblocked (this function may
only be called inside the exec function, which blocks all signals),
and all IO redirections and other file descriptor actions are
performed.
\param j the job to set up the IO for
\param p the child process to set up
\return 0 on sucess, -1 on failiure. When this function returns,
signals are always unblocked. On failiure, signal handlers, io
redirections and process group of the process is undefined.
*/
static int setup_child_process( job_t *j, process_t *p )
{
int res=0;
if( p )
{
res = set_child_group( j, p, 1 );
}
if( !res )
{
res = handle_child_io( j->io );
if( p != 0 && res )
{
exit( 1 );
}
}
/* Set the handling for job control signals back to the default. */
if( !res )
{
signal_reset_handlers();
}
/* Remove all signal blocks */
signal_unblock();
return res;
}
