Ejemplos de swap_proc_slot en C++ (Cpp)

Ejemplo n.º 1

Archivo: rs.c Proyecto: 0xenvision/minix

/*===========================================================================*
 *				do_rs_update	     			     *
 *===========================================================================*/
int do_rs_update(message *m_ptr)
{
	endpoint_t src_e, dst_e, reply_e;
	int src_p, dst_p;
	struct vmproc *src_vmp, *dst_vmp;
	int r;

	src_e = m_ptr->VM_RS_SRC_ENDPT;
	dst_e = m_ptr->VM_RS_DST_ENDPT;

	/* Lookup slots for source and destination process. */
	if(vm_isokendpt(src_e, &src_p) != OK) {
		printf("do_rs_update: bad src endpoint %d\n", src_e);
		return EINVAL;
	}
	src_vmp = &vmproc[src_p];
	if(vm_isokendpt(dst_e, &dst_p) != OK) {
		printf("do_rs_update: bad dst endpoint %d\n", dst_e);
		return EINVAL;
	}
	dst_vmp = &vmproc[dst_p];

	/* Let the kernel do the update first. */
	r = sys_update(src_e, dst_e);
	if(r != OK) {
		return r;
	}

	/* Do the update in VM now. */
	r = swap_proc_slot(src_vmp, dst_vmp);
	if(r != OK) {
		return r;
	}
	r = swap_proc_dyn_data(src_vmp, dst_vmp);
	if(r != OK) {
		return r;
	}
	pt_bind(&src_vmp->vm_pt, src_vmp);
	pt_bind(&dst_vmp->vm_pt, dst_vmp);

	/* Reply, update-aware. */
	reply_e = m_ptr->m_source;
	if(reply_e == src_e) reply_e = dst_e;
	else if(reply_e == dst_e) reply_e = src_e;
	m_ptr->m_type = OK;
	r = send(reply_e, m_ptr);
	if(r != OK) {
		panic("send() error");
	}

	return SUSPEND;
}

Ejemplo n.º 2

Archivo: rs.c Proyecto: Stichting-MINIX-Research-Foundation/minix

/*===========================================================================*
 *				do_rs_update	     			     *
 *===========================================================================*/
int do_rs_update(message *m_ptr)
{
	endpoint_t src_e, dst_e, reply_e;
	int src_p, dst_p;
	struct vmproc *src_vmp, *dst_vmp;
	int r, sys_upd_flags;

	src_e = m_ptr->m_lsys_vm_update.src;
	dst_e = m_ptr->m_lsys_vm_update.dst;
        sys_upd_flags = m_ptr->m_lsys_vm_update.flags;
        reply_e = m_ptr->m_source;

	/* Lookup slots for source and destination process. */
	if(vm_isokendpt(src_e, &src_p) != OK) {
		printf("do_rs_update: bad src endpoint %d\n", src_e);
		return EINVAL;
	}
	src_vmp = &vmproc[src_p];
	if(vm_isokendpt(dst_e, &dst_p) != OK) {
		printf("do_rs_update: bad dst endpoint %d\n", dst_e);
		return EINVAL;
	}
	dst_vmp = &vmproc[dst_p];

	/* Check flags. */
	if((sys_upd_flags & (SF_VM_ROLLBACK|SF_VM_NOMMAP)) == 0) {
	        /* Can't preallocate when transfering mmapped regions. */
	        if(map_region_lookup_type(dst_vmp, VR_PREALLOC_MAP)) {
			return ENOSYS;
	        }
	}

	/* Let the kernel do the update first. */
	r = sys_update(src_e, dst_e,
	    sys_upd_flags & SF_VM_ROLLBACK ? SYS_UPD_ROLLBACK : 0);
	if(r != OK) {
		return r;
	}

	/* Do the update in VM now. */
	r = swap_proc_slot(src_vmp, dst_vmp);
	if(r != OK) {
		return r;
	}
	r = swap_proc_dyn_data(src_vmp, dst_vmp, sys_upd_flags);
	if(r != OK) {
		return r;
	}
	pt_bind(&src_vmp->vm_pt, src_vmp);
	pt_bind(&dst_vmp->vm_pt, dst_vmp);

	/* Reply in case of external request, update-aware. */
	if(reply_e != VM_PROC_NR) {
            if(reply_e == src_e) reply_e = dst_e;
            else if(reply_e == dst_e) reply_e = src_e;
            m_ptr->m_type = OK;
            r = ipc_send(reply_e, m_ptr);
            if(r != OK) {
                    panic("ipc_send() error");
            }
	}

	return SUSPEND;
}