// SetPgrp sets the foreground process group ID associated with the
// terminal to pgid. See tcsetpgrp(3).
func SetPgrp(fd int, pgid int) error {
r, err := C.mytcsetpgrp(C.int(fd), C.pid_t(pgid))
if r < 0 {
return err
}
return nil
}
func Tcsetpgrp(fd int, pid int) error {
i := C.f(C.int(fd), C.pid_t(pid))
if i != 0 {
return syscall.Errno(C.e())
}
return nil
}
func Getpidcon(pid int) (string, error) {
var pcon C.security_context_t
var scon string
rc, err := C.getpidcon(C.pid_t(pid), &pcon)
if rc >= 0 {
scon = C.GoString(pcon)
C.freecon(pcon)
err = nil
}
return scon, err
}
func (s *PerProcessStat) CollectAttributes(pid C.int) {
// some cgo follows
var kp C.struct_kinfo_proc
C.get_process_info(&kp, C.pid_t(pid))
s.comm = C.GoString((*C.char)(unsafe.Pointer(&kp.kp_proc.p_comm)))
s.Uid = int(kp.kp_eproc.e_ucred.cr_uid)
u, err := user.LookupId(fmt.Sprintf("%v", s.Uid))
if err == nil {
s.user = u.Username
}
}
func (ct *Container) Load(p *ProcessDesc, pid int) error {
h := C.libct_container_load(ct.ct, C.pid_t(pid))
if C.libct_handle_is_err(unsafe.Pointer(h)) != 0 {
p.closeDescriptors(p.closeAfterStart)
p.closeDescriptors(p.closeAfterWait)
return LibctError{int(C.libct_handle_to_err(unsafe.Pointer(h)))}
}
p.handle = h
return nil
}
// sched_setattr(2)
func SetAttr(pid int, attr SchedAttr) error {
cAttr := C.struct_sched_attr{
C.__u32(C.SCHED_ATTR_SIZE),
C.__u32(attr.Policy),
C.__u64(attr.Flags),
C.__s32(attr.Nice),
C.__u32(attr.Priority),
C.__u64(attr.Runtime.Nanoseconds()),
C.__u64(attr.Deadline.Nanoseconds()),
C.__u64(attr.Period.Nanoseconds()),
}
_, err := C.sched_setattr(C.pid_t(pid), &cAttr, C.uint(0))
return err
}
// sched_getattr(2)
func GetAttr(pid int) (SchedAttr, error) {
attr := SchedAttr{}
cAttr := C.struct_sched_attr{}
_, err := C.sched_getattr(C.pid_t(pid), &cAttr, C.uint(C.SCHED_ATTR_SIZE), C.uint(0))
if err == nil {
attr.Policy = SchedPolicy(cAttr.sched_policy)
attr.Flags = SchedFlag(cAttr.sched_flags)
attr.Nice = int32(cAttr.sched_nice)
// not sure why we need this tail underscore: sched_priority_
attr.Priority = uint32(cAttr.sched_priority_)
attr.Runtime = time.Duration(cAttr.sched_runtime)
attr.Deadline = time.Duration(cAttr.sched_deadline)
attr.Period = time.Duration(cAttr.sched_period)
}
return attr, err
}