C++ owner函数代码示例

	// ----------------------------------------------------------------------
	autocast::AutoCastProcessor::LocalDataUnit *
		AutoCastProcessor::
		most_urgent_DataUnit()
		throw()
	{
		double now = owner().world().scheduler().current_time();

		std::vector<LocalDataUnit*> tmp_objects;

		for (DataUnitsMap::const_iterator it = complete_DataUnits_.begin(); it != complete_DataUnits_.end(); ++it){
			if (it->second->last_send_time() < now && it->second->unknown_count() > 0){
				for (int i = 0; i < it->second->unknown_count(); i++){
					tmp_objects.push_back(it->second);
				}
			}
		}
		if (tmp_objects.size() == 0) return NULL;
		int idx = static_cast<int>(uniform_random(0.0,tmp_objects.size(),true,false));
		return tmp_objects.at(idx);
	}

void CMissileProjectile::Collision()
{
	const float h = ground->GetHeightReal(pos.x, pos.z);

	if (weaponDef->waterweapon && h < pos.y) {
		// let waterweapons travel in water
		return;
	}

	if (h > pos.y && fabs(speed.y) > 0.001f) {
		pos -= speed * std::min(1.0f, (float)((h - pos.y) / fabs(speed.y)));
	}

	if (weaponDef->visuals.smokeTrail) {
		new CSmokeTrailProjectile(pos, oldSmoke, dir, oldDir, owner(), false, true, 7, SMOKE_TIME, 0.6f, drawTrail, 0, weaponDef->visuals.texture2);
	}

	CWeaponProjectile::Collision();
	oldSmoke = pos;
}

  RingHom PolyAlgebraHom(const PolyRing& Rx, const ring& Ry, const std::vector<RingElem>& IndetImages)
  {
    const char* const FnName = "PolyAlgebraHom(Rx,Ry,IndetImages)";
    // Check that IndetImages are sensible...
    if (NumIndets(Rx) != len(IndetImages))
      CoCoA_ERROR(ERR::BadPolyRingHomImages, FnName);
    for (long i=0; i < NumIndets(Rx); ++i)
      if (owner(IndetImages[i]) != Ry)
        CoCoA_ERROR(ERR::BadPolyRingHomImages, FnName);
//     // Special case: codomain is coeff ring.
//     if (Ry == CoeffRing(Rx))
//       return Rx->myHomCtor(Ry, IdentityHom(Ry), IndetImages);
//     // General case: codomain must be a poly ring with same coeffs
//     if (!IsPolyRing(Ry))
//       CoCoA_ERROR(ERR::BadCodomain, FnName);
//     if (CoeffRing(Rx) != CoeffRing(Ry))
//       CoCoA_ERROR(ERR::MixedCoeffRings, FnName);
//    return Rx->myHomCtor(Ry, CoeffEmbeddingHom(Ry), IndetImages);
    return Rx->myHomCtor(Ry, CanonicalHom(CoeffRing(Rx),Ry), IndetImages);
  }

void CWeaponProjectile::Collision()
{
	if (/* !weaponDef->noExplode || gs->frameNum & 1 */ true) {
		// don't do damage only on odd-numbered frames
		// for noExplode projectiles (it breaks coldet)
		float3 impactDir = speed;
		impactDir.Normalize();

		// Dynamic Damage
		DamageArray dynDamages;
		if (weaponDef->dynDamageExp > 0)
			dynDamages = weaponDefHandler->DynamicDamages(weaponDef->damages,
					startpos, pos, (weaponDef->dynDamageRange > 0)
							? weaponDef->dynDamageRange
							: weaponDef->range,
					weaponDef->dynDamageExp, weaponDef->dynDamageMin,
					weaponDef->dynDamageInverted);

		helper->Explosion(pos,
			(weaponDef->dynDamageExp > 0) ? dynDamages : weaponDef->damages,
			weaponDef->areaOfEffect, weaponDef->edgeEffectiveness,
			weaponDef->explosionSpeed, owner(), true,
			weaponDef->noExplode ? 0.3f : 1,
			weaponDef->noExplode || weaponDef->noSelfDamage, weaponDef->impactOnly,
			weaponDef->explosionGenerator, 0, impactDir, weaponDef->id);
	}

	if (weaponDef->soundhit.getID(0) > 0) {
		Channels::Battle.PlaySample(weaponDef->soundhit.getID(0), this,
			weaponDef->soundhit.getVolume(0));
	}

	if (!weaponDef->noExplode){
		CProjectile::Collision();
	} else {
		if (TraveledRange()) {
			CProjectile::Collision();
		}
	}

}

::CORBA::Boolean
TestValuetype::_tao_unmarshal (
    TAO_InputCDR &strm,
    TestValuetype *&new_object
)
{
    ::CORBA::ValueBase *base = 0;
    ::CORBA::Boolean is_indirected = false;
    ::CORBA::Boolean is_null_object = false;
    ::CORBA::Boolean const retval =
        ::CORBA::ValueBase::_tao_unmarshal_pre (
            strm,
            base,
            TestValuetype::_tao_obv_static_repository_id (),
            is_null_object,
            is_indirected
        );

    ::CORBA::ValueBase_var owner (base);

    if (!retval)
        return false;

    if (is_null_object)
        return true;

    if (!is_indirected && !base->_tao_unmarshal_v (strm))
        return false;

    // Now base must point to the unmarshaled object.
    // Align the pointer to the right subobject.
    new_object = TestValuetype::_downcast (base);
    if (0 == new_object)
        return false;

    if (is_indirected)
        new_object->_add_ref ();

    owner._retn ();
    return true;
}

	void permission_object_t::test<5>()
	{
		LLPermissions perm,perm1;
		LLUUID creator("abf0d56b-82e5-47a2-a8ad-74741bb2c29e");	
		LLUUID owner("68edcf47-ccd7-45b8-9f90-1649d7f12806"); 
		LLUUID lastOwner("5e47a0dc-97bf-44e0-8b40-de06718cee9d"); 
		LLUUID group("9c8eca51-53d5-42a7-bb58-cef070395db8");		
		perm1.init(creator,owner,lastOwner,group);

		U32 base = PERM_TRANSFER;
		U32 ownerp = PERM_TRANSFER;
		U32 groupp = PERM_TRANSFER;
		U32 everyone = PERM_TRANSFER;
		U32 next = PERM_NONE;

		perm1.initMasks(base, ownerp, everyone, groupp, next);

		base = PERM_ALL;
		ownerp = PERM_ITEM_UNRESTRICTED; //PERM_ITEM_UNRESTRICTED = PERM_MODIFY | PERM_COPY | PERM_TRANSFER;
		groupp = PERM_TRANSFER | PERM_COPY|PERM_MODIFY;
		everyone = PERM_TRANSFER;
		next = PERM_NONE;
		
		perm.init(creator,owner,lastOwner,group);
		perm.initMasks(base, ownerp, everyone, groupp, next); 

		// restrict permissions by accumulation
		perm.accumulate(perm1);

		U32 fixedbase = PERM_TRANSFER | PERM_MOVE;
		U32 fixedowner = PERM_TRANSFER;
		U32 fixedgroup = PERM_TRANSFER;
		U32 fixedeveryone = PERM_TRANSFER;
		U32 fixednext = PERM_NONE;

		ensure_equals("accumulate failed ", fixedbase, perm.getMaskBase());	
		ensure_equals("accumulate failed ", fixedowner, perm.getMaskOwner());	
		ensure_equals("accumulate failed ", fixedgroup, perm.getMaskGroup());	
		ensure_equals("accumulate failed ", fixedeveryone, perm.getMaskEveryone());	
		ensure_equals("accumulate failed ", fixednext, perm.getMaskNextOwner());	
	}

/*
 ****************************************************************
 *	Chamada ao sistema "utime"				*
 ****************************************************************
 */
int
utime (const char *path, const time_t *tp)
{
	register INODE	*ip;
	time_t		tv[3];

	if ((ip = owner (path)) == NOINODE)
		return (-1);

	if (ip->i_sb->sb_mntent.me_flags & SB_RONLY)
		{ u.u_error = EROFS; goto bad; }

	/*
	 *	Altera os tempos
	 */
	if (tp == (time_t *)NULL)	/* Tempos de acesso e modificação */
	{
		ip->i_atime = time;
		ip->i_mtime = time;
	}
	else				/* Os 3 tempos */
	{
		if (unimove (tv, tp, sizeof (tv), US))
		{
			u.u_error = EFAULT;
			goto bad;
		}

		ip->i_atime = tv[0];
		ip->i_mtime = tv[1];
		ip->i_ctime = tv[2];
	}

	inode_dirty_inc (ip);

    bad:
	iput (ip);

	return (UNDEF);

}	/* end utime */

   // ----------------------------------------------------------------------
   void
   LocalizationIterLaterationModule::
   work( void )
      throw()
   {
      if ( state_ == il_finished )
         return;

      // do initial stuff;
      //    if anchor, send 'init-message' and set state to 'finished';
      //    if unknown, check whether the node is sound or not. if sound,
      //       send messages, if not, clear estimated position.
      if ( state_ == il_init )
      {
         if ( owner().is_anchor() )
         {
            send( new LocalizationIterLaterationMessage( observer().confidence() ) );
            state_ = il_finished;
         }
         else
         {
            sound_ = neighborhood().is_sound();

            if ( sound_ && node().has_est_position() )
            {
               send( new LocalizationIterLaterationMessage( observer().confidence() ) );
               send( new LocalizationIterLaterationSoundMessage() );
            }
            else
            {
               set_confidence( 0 );
               node_w().clear_est_position();
            }

            state_ = il_work;
         }
      }

      if ( state_ == il_work )
         iter_lateration_step();
   }

void t01_basic(){ 
	INIT_LOCAL();
	
	Onion::Dict normal;
	normal.add("Hello", "World");
	
	onion_dict *d=onion_dict_new();
	onion_dict_add(d, "Hello", "2", 0);
	
	Onion::Dict non_owner(d);
	FAIL_IF_NOT_EQUAL_STRING(non_owner.get("Hello"), "2");
	
	Onion::Dict owner(d, true);
	FAIL_IF_NOT_EQUAL_STRING(owner.get("Hello"), "2");
	
	non_owner.add("non-owner", "true");
	FAIL_IF_NOT_EQUAL_STRING(owner.get("non-owner"), "true");
	FAIL_IF_NOT_EQUAL_STRING(onion_dict_get(d,"non-owner"), "true");
	
	END_LOCAL();
}

bool GScriptCoreService::loadLibrary(const char * namespaces, const GMetaVariadicParam * libraryNames)
{
	if(! this->libraryLoader) {
		GScopedInterface<IScriptLibraryLoader> loader(createBuiltinLibraries(this->scriptObject));
		this->libraryLoader.reset(loader.get());
	}

	if(namespaces == NULL) {
		namespaces = this->bindName.c_str();
	}

	GScopedInterface<IScriptObject> owner(scriptObjectToInterface(this->scriptObject, false));
	for(size_t i = 0; i < libraryNames->paramCount; ++i) {
		char * name = fromVariant<char *>(*(libraryNames->params[i]));
		if(! this->libraryLoader->loadScriptLibrary(owner.get(), namespaces, name)) {
			return false;
		}
	}
	
	return true;
}

/*--------------------------------------------------
 * Center the window concerning his owner window
 *--------------------------------------------------*/
PMWindow& PMWindow::center_at()
{
  HWND  o_handle = owner   ();
  HWND  p_handle = parent  ();
  SHAPE o_shape  = PMWindow( o_handle ? o_handle : p_handle ).shape();

  SHAPE shape = this->shape();

  if( o_handle )
  {
    shape.x = (o_shape.cx - shape.cx)/2 + o_shape.x;
    shape.y = (o_shape.cy - shape.cy)/2 + o_shape.y;
  }
  else
  {
    shape.x = (o_shape.cx - shape.cx)/2;
    shape.y = (o_shape.cy - shape.cy)/2;
  }

  return reshape( shape );
}

void cpc_symbiface2_device::device_start()
{
	device_t* cpu = machine().device("maincpu");
	address_space& space = cpu->memory().space(AS_IO);

	m_slot = dynamic_cast<cpc_expansion_slot_device *>(owner());

	space.install_readwrite_handler(0xfd00,0xfd07,read8_delegate(FUNC(cpc_symbiface2_device::ide_cs1_r),this),write8_delegate(FUNC(cpc_symbiface2_device::ide_cs1_w),this));
	space.install_readwrite_handler(0xfd08,0xfd0f,read8_delegate(FUNC(cpc_symbiface2_device::ide_cs0_r),this),write8_delegate(FUNC(cpc_symbiface2_device::ide_cs0_w),this));
	space.install_read_handler(0xfd10,0xfd10,read8_delegate(FUNC(cpc_symbiface2_device::mouse_r),this));
	space.install_readwrite_handler(0xfd14,0xfd15,read8_delegate(FUNC(cpc_symbiface2_device::rtc_r),this),write8_delegate(FUNC(cpc_symbiface2_device::rtc_w),this));
	space.install_readwrite_handler(0xfd17,0xfd17,read8_delegate(FUNC(cpc_symbiface2_device::rom_rewrite_r),this),write8_delegate(FUNC(cpc_symbiface2_device::rom_rewrite_w),this));

	// set up ROM space (these can be writable, when mapped to &4000, or completely disabled, allowing the built-in ROMs to be visible)
	// 32 banks of 16kB (512kB)
	m_rom_space.resize(32*16384);

	m_nvram->set_base(&m_rom_space[0],m_rom_space.size());
	save_item(NAME(m_rom_space));

}

/// Closes the LocalConnection object.
//
/// This removes the advanceCallback (so we can be removed by the GC) and
/// removes this object as a listener from the shared memory listeners
/// section.
void
LocalConnection_as::close()
{
    // We may be waiting either to send or to receive, so in both cases
    // make sure update() isn't called again.
    movie_root& mr = getRoot(owner());
    mr.removeAdvanceCallback(this);
    
    if (!_connected) return;
    _connected = false;
    
    SharedMem::Lock lock(_shm);
    if (!lock.locked()) {
        log_error("Failed to get lock on shared memory! Will not remove "
                "listener");
        return;
    }

    removeListener(_domain + ":" + _name, _shm);
    
}

void msx_slot_bunsetsu_device::device_start()
{
	msx_slot_rom_device::device_start();

	if (m_bunsetsu_region_tag == nullptr)
	{
		fatalerror("msx_slot_bunsetsu_device: no bunsetsu region tag specified\n");
	}

	m_bunsetsu_region = owner()->memregion(m_bunsetsu_region_tag);

	if (m_bunsetsu_region == nullptr)
	{
		fatalerror("msx_slot_bunsetsu_device: Unable to find region with tag '%s'\n", m_bunsetsu_region_tag);
	}

	if (m_bunsetsu_region->bytes() != 0x20000)
	{
		fatalerror("msx_slot_bunsetsu_device: Bunsetsu region must be 0x20000 bytes.\n");
	}
}

cell factor_vm::code_block_owner(code_block *compiled)
{
	tagged<object> owner(compiled->owner);

	/* Cold generic word call sites point to quotations that call the
	inline-cache-miss and inline-cache-miss-tail primitives. */
	if(owner.type_p(QUOTATION_TYPE))
	{
		tagged<quotation> quot(owner.as<quotation>());
		tagged<array> elements(quot->array);
#ifdef FACTOR_DEBUG
		assert(array_capacity(elements.untagged()) == 5);
		assert(array_nth(elements.untagged(),4) == special_objects[PIC_MISS_WORD]
			|| array_nth(elements.untagged(),4) == special_objects[PIC_MISS_TAIL_WORD]);
#endif
		tagged<wrapper> word_wrapper(array_nth(elements.untagged(),0));
		return word_wrapper->object;
	}
	else
		return compiled->owner;
}