C++ Assert函数代码示例

void ctp2_TextBuffer::Scroll(sint32 numLines)
{

	sint32		errcode;
	char		*buffer;
	sint32		deltaY = numLines * m_charHeight;

	errcode = m_surface->Lock(NULL, (LPVOID *)&buffer, 0);
	Assert(errcode == AUI_ERRCODE_OK);
	if (errcode != AUI_ERRCODE_OK) return;

	sint32		x = m_rect.left;
	sint32		y = m_rect.top;

	sint32		h = m_rect.bottom - m_rect.top,
				w = m_rect.right - m_rect.left,
				copyHeight = h - abs(deltaY);

	sint32		pitch = m_surface->Pitch();

	uint32		*srcPtr, *destPtr;
	sint32		dy = abs(deltaY);
	sint32		i,j;

	sint32		slop;
	char		*scrollBuffer = buffer + (pitch * y + x * 2);

	if (deltaY) {
		if (deltaY < 0) {
			srcPtr =	(uint32 *)(scrollBuffer + (pitch * (h - dy - 1)));
			destPtr =	(uint32 *)(scrollBuffer + (pitch * (h - 1)));
			slop = (pitch / 4) + (w / 2);
			for (i=0; i<copyHeight; i++) {
				for (j=0; j<w>>1; j++) {
					*destPtr++ = *srcPtr++;
				}
				srcPtr -= slop;
				destPtr -= slop;
			}
			for (i=0; i<dy; i++) {
				for (j=0; j<w>>1; j++) {
					*destPtr++ = 0x00000000;
				}
				destPtr -= slop;
			}
		} else {
			srcPtr =	(uint32 *)(scrollBuffer + (pitch * dy));
			destPtr =	(uint32 *)(scrollBuffer);
			slop = (pitch / 4) - (w / 2);
			for (i=0; i<copyHeight; i++) {
				for (j=0; j<w>>1; j++) {
					*destPtr++ = *srcPtr++;
				}
				srcPtr += slop;
				destPtr += slop;
			}
			for (i=0; i<dy; i++) {
				for (j=0; j<w>>1; j++) {
					*destPtr++ = 0x00000000;
				}
				destPtr += slop;
			}
		}
	}

	errcode = m_surface->Unlock(buffer);
	Assert(errcode == AUI_ERRCODE_OK);
	if (errcode != AUI_ERRCODE_OK) return;
}

//.........这里部分代码省略.........
	int sceneEntryStart = stringPoolStart + stringPool.TellMaxPut();
	// then variable sized summaries
	int sceneSummaryStart = sceneEntryStart + g_SceneFiles.Count() * sizeof( SceneImageEntry_t );
	// then variable sized compiled binary scene data
	int sceneDataStart = 0;

	// construct header
	SceneImageHeader_t imageHeader = { 0 };
	imageHeader.nId = SCENE_IMAGE_ID;
	imageHeader.nVersion = SCENE_IMAGE_VERSION;
	imageHeader.nNumScenes = g_SceneFiles.Count();
	imageHeader.nNumStrings = stringOffsets.Count();
	imageHeader.nSceneEntryOffset = sceneEntryStart;
	if ( !bLittleEndian )
	{
		imageHeader.nId = BigLong( imageHeader.nId );
		imageHeader.nVersion = BigLong( imageHeader.nVersion );
		imageHeader.nNumScenes = BigLong( imageHeader.nNumScenes );
		imageHeader.nNumStrings = BigLong( imageHeader.nNumStrings );
		imageHeader.nSceneEntryOffset = BigLong( imageHeader.nSceneEntryOffset );
	}
	targetBuffer.Put( &imageHeader, sizeof( imageHeader ) );

	// header is immediately followed by string table and pool
	for ( int i = 0; i < stringOffsets.Count(); i++ )
	{
		unsigned int offset = stringPoolStart + stringOffsets[i];
		if ( !bLittleEndian )
		{
			offset = BigLong( offset );
		}
		targetBuffer.PutInt( offset );
	}
	Assert( stringPoolStart == targetBuffer.TellMaxPut() );
	targetBuffer.Put( stringPool.Base(), stringPool.TellMaxPut() );

	// construct directory
	CUtlSortVector< SceneImageEntry_t, CSceneImageEntryLessFunc > imageDirectory;
	imageDirectory.EnsureCapacity( g_SceneFiles.Count() );

	// build directory
	// directory is linear sorted by filename checksum for later binary search
	for ( int i = 0; i < g_SceneFiles.Count(); i++ )
	{
		SceneImageEntry_t imageEntry = { 0 };

		// name needs to be normalized for determinstic later CRC name calc
		// calc crc based on scenes\anydir\anyscene.vcd
		char szCleanName[MAX_PATH];
		V_strncpy( szCleanName, g_SceneFiles[i].fileName.String(), sizeof( szCleanName ) );
		V_strlower( szCleanName );
		V_FixSlashes( szCleanName );
		char *pName = V_stristr( szCleanName, "scenes\\" );
		if ( !pName )
		{
			// must have scenes\ in filename
			Error( "CreateSceneImageFile: Unexpected lack of scenes prefix on %s\n", g_SceneFiles[i].fileName.String() );
		}

		CRC32_t crcFilename = CRC32_ProcessSingleBuffer( pName, strlen( pName ) );
		imageEntry.crcFilename = crcFilename;

		// temp store an index to its file, fixup later, necessary to access post sort
		imageEntry.nDataOffset = i;
		if ( imageDirectory.Find( imageEntry ) != imageDirectory.InvalidIndex() )
		{

/**
**  Create a missile.
**
**  @param l  Lua state.
*/
static int CclMissile(lua_State *l)
{
	MissileType *type = NULL;
	PixelPos position(-1, -1);
	PixelPos destination(-1, -1);
	PixelPos source(-1, -1);
	Missile *missile = NULL;

	DebugPrint("FIXME: not finished\n");

	const int args = lua_gettop(l);
	for (int j = 0; j < args; ++j) {
		const char *value = LuaToString(l, j + 1);
		++j;

		if (!strcmp(value, "type")) {
			type = MissileTypeByIdent(LuaToString(l, j + 1));
		} else if (!strcmp(value, "pos")) {
			CclGetPos(l, &position.x, &position.y, j + 1);
		} else if (!strcmp(value, "origin-pos")) {
			CclGetPos(l, &source.x, &source.y, j + 1);
		} else if (!strcmp(value, "goal")) {
			CclGetPos(l, &destination.x, &destination.y, j + 1);
		} else if (!strcmp(value, "local")) {
			Assert(type);
			missile = MakeLocalMissile(*type, position, destination);
			missile->Local = 1;
			--j;
		} else if (!strcmp(value, "global")) {
			Assert(type);
			missile = MakeMissile(*type, position, destination);
			missile->position = position;
			missile->source = source;
			missile->destination = destination;
			missile->Local = 0;
			--j;
		} else if (!strcmp(value, "frame")) {
			Assert(missile);
			missile->SpriteFrame = LuaToNumber(l, j + 1);
		} else if (!strcmp(value, "state")) {
			Assert(missile);
			missile->State = LuaToNumber(l, j + 1);
		} else if (!strcmp(value, "anim-wait")) {
			Assert(missile);
			missile->AnimWait = LuaToNumber(l, j + 1);
		} else if (!strcmp(value, "wait")) {
			Assert(missile);
			missile->Wait = LuaToNumber(l, j + 1);
		} else if (!strcmp(value, "delay")) {
			Assert(missile);
			missile->Delay = LuaToNumber(l, j + 1);
		} else if (!strcmp(value, "source")) {
			Assert(missile);
			lua_pushvalue(l, j + 1);
			missile->SourceUnit = CclGetUnitFromRef(l);
			lua_pop(l, 1);
		} else if (!strcmp(value, "target")) {
			Assert(missile);
			lua_pushvalue(l, j + 1);
			missile->TargetUnit = CclGetUnitFromRef(l);
			lua_pop(l, 1);
		} else if (!strcmp(value, "damage")) {
			Assert(missile);
			missile->Damage = LuaToNumber(l, j + 1);
		} else if (!strcmp(value, "ttl")) {
			Assert(missile);
			missile->TTL = LuaToNumber(l, j + 1);
		} else if (!strcmp(value, "hidden")) {
			Assert(missile);
			missile->Hidden = 1;
			--j;
		} else if (!strcmp(value, "step")) {
			Assert(missile);
			if (!lua_istable(l, j + 1) || lua_rawlen(l, j + 1) != 2) {
				LuaError(l, "incorrect argument");
			}
			missile->CurrentStep = LuaToNumber(l, j + 1, 1);
			missile->TotalStep = LuaToNumber(l, j + 1, 2);
		} else {
			LuaError(l, "Unsupported tag: %s" _C_ value);
		}
	}

	// we need to reinitialize position parameters - that's because of
	// the way InitMissile() (called from MakeLocalMissile()) computes
	// them - it works for creating a missile during a game but breaks
	// loading the missile from a file.
	missile->position = position;
	missile->source = source;
	missile->destination = destination;
	return 0;
}

/*
 * Associate a BackgroundWorkerHandle with a shm_mq_handle just as if it had
 * been passed to shm_mq_attach.
 */
void
shm_mq_set_handle(shm_mq_handle *mqh, BackgroundWorkerHandle *handle)
{
	Assert(mqh->mqh_handle == NULL);
	mqh->mqh_handle = handle;
}

/*
 * Receive a message from a shared message queue.
 *
 * We set *nbytes to the message length and *data to point to the message
 * payload.  If the entire message exists in the queue as a single,
 * contiguous chunk, *data will point directly into shared memory; otherwise,
 * it will point to a temporary buffer.  This mostly avoids data copying in
 * the hoped-for case where messages are short compared to the buffer size,
 * while still allowing longer messages.  In either case, the return value
 * remains valid until the next receive operation is perfomed on the queue.
 *
 * When nowait = false, we'll wait on our process latch when the ring buffer
 * is empty and we have not yet received a full message.  The sender will
 * set our process latch after more data has been written, and we'll resume
 * processing.  Each call will therefore return a complete message
 * (unless the sender detaches the queue).
 *
 * When nowait = true, we do not manipulate the state of the process latch;
 * instead, whenever the buffer is empty and we need to read from it, we
 * return SHM_MQ_WOULD_BLOCK.  In this case, the caller should call this
 * function again after the process latch has been set.
 */
shm_mq_result
shm_mq_receive(shm_mq_handle *mqh, Size *nbytesp, void **datap, bool nowait)
{
	shm_mq	   *mq = mqh->mqh_queue;
	shm_mq_result res;
	Size		rb = 0;
	Size		nbytes;
	void	   *rawdata;

	Assert(mq->mq_receiver == MyProc);

	/* We can't receive data until the sender has attached. */
	if (!mqh->mqh_counterparty_attached)
	{
		if (nowait)
		{
			if (shm_mq_get_sender(mq) == NULL)
				return SHM_MQ_WOULD_BLOCK;
		}
		else if (!shm_mq_wait_internal(mq, &mq->mq_sender, mqh->mqh_handle)
				 && shm_mq_get_sender(mq) == NULL)
		{
			mq->mq_detached = true;
			return SHM_MQ_DETACHED;
		}
		mqh->mqh_counterparty_attached = true;
	}

	/* Consume any zero-copy data from previous receive operation. */
	if (mqh->mqh_consume_pending > 0)
	{
		shm_mq_inc_bytes_read(mq, mqh->mqh_consume_pending);
		mqh->mqh_consume_pending = 0;
	}

	/* Try to read, or finish reading, the length word from the buffer. */
	while (!mqh->mqh_length_word_complete)
	{
		/* Try to receive the message length word. */
		Assert(mqh->mqh_partial_bytes < sizeof(Size));
		res = shm_mq_receive_bytes(mq, sizeof(Size) - mqh->mqh_partial_bytes,
								   nowait, &rb, &rawdata);
		if (res != SHM_MQ_SUCCESS)
			return res;

		/*
		 * Hopefully, we'll receive the entire message length word at once.
		 * But if sizeof(Size) > MAXIMUM_ALIGNOF, then it might be split over
		 * multiple reads.
		 */
		if (mqh->mqh_partial_bytes == 0 && rb >= sizeof(Size))
		{
			Size		needed;

			nbytes = *(Size *) rawdata;

			/* If we've already got the whole message, we're done. */
			needed = MAXALIGN(sizeof(Size)) + MAXALIGN(nbytes);
			if (rb >= needed)
			{
				/*
				 * Technically, we could consume the message length
				 * information at this point, but the extra write to shared
				 * memory wouldn't be free and in most cases we would reap no
				 * benefit.
				 */
				mqh->mqh_consume_pending = needed;
				*nbytesp = nbytes;
				*datap = ((char *) rawdata) + MAXALIGN(sizeof(Size));
				return SHM_MQ_SUCCESS;
			}

			/*
			 * We don't have the whole message, but we at least have the whole
			 * length word.
			 */
			mqh->mqh_expected_bytes = nbytes;
			mqh->mqh_length_word_complete = true;
//.........这里部分代码省略.........

/*
 * Translate an object name and arguments (as passed by the parser) to an
 * ObjectAddress.
 *
 * The returned object will be locked using the specified lockmode.  If a
 * sub-object is looked up, the parent object will be locked instead.
 *
 * If the object is a relation or a child object of a relation (e.g. an
 * attribute or contraint), the relation is also opened and *relp receives
 * the open relcache entry pointer; otherwise, *relp is set to NULL.  This
 * is a bit grotty but it makes life simpler, since the caller will
 * typically need the relcache entry too.  Caller must close the relcache
 * entry when done with it.  The relation is locked with the specified lockmode
 * if the target object is the relation itself or an attribute, but for other
 * child objects, only AccessShareLock is acquired on the relation.
 *
 * We don't currently provide a function to release the locks acquired here;
 * typically, the lock must be held until commit to guard against a concurrent
 * drop operation.
 */
ObjectAddress
get_object_address(ObjectType objtype, List *objname, List *objargs,
				   Relation *relp, LOCKMODE lockmode)
{
	ObjectAddress address;
	Relation	relation = NULL;

	/* Some kind of lock must be taken. */
	Assert(lockmode != NoLock);

	switch (objtype)
	{
		case OBJECT_INDEX:
		case OBJECT_SEQUENCE:
		case OBJECT_TABLE:
		case OBJECT_VIEW:
			relation =
				get_relation_by_qualified_name(objtype, objname, lockmode);
			address.classId = RelationRelationId;
			address.objectId = RelationGetRelid(relation);
			address.objectSubId = 0;
			break;
		case OBJECT_COLUMN:
			address =
				get_object_address_attribute(objtype, objname, &relation,
											 lockmode);
			break;
		case OBJECT_RULE:
		case OBJECT_TRIGGER:
		case OBJECT_CONSTRAINT:
			address = get_object_address_relobject(objtype, objname, &relation);
			break;
		case OBJECT_DATABASE:
		case OBJECT_EXTENSION:
		case OBJECT_TABLESPACE:
		case OBJECT_ROLE:
		case OBJECT_SCHEMA:
		case OBJECT_LANGUAGE:
			address = get_object_address_unqualified(objtype, objname);
			break;
		case OBJECT_TYPE:
		case OBJECT_DOMAIN:
			address.classId = TypeRelationId;
			address.objectId =
				typenameTypeId(NULL, makeTypeNameFromNameList(objname), NULL);
			address.objectSubId = 0;
			break;
		case OBJECT_AGGREGATE:
			address.classId = ProcedureRelationId;
			address.objectId = LookupAggNameTypeNames(objname, objargs, false);
			address.objectSubId = 0;
			break;
		case OBJECT_FUNCTION:
			address.classId = ProcedureRelationId;
			address.objectId = LookupFuncNameTypeNames(objname, objargs, false);
			address.objectSubId = 0;
			break;
		case OBJECT_OPERATOR:
			Assert(list_length(objargs) == 2);
			address.classId = OperatorRelationId;
			address.objectId =
				LookupOperNameTypeNames(NULL, objname,
										(TypeName *) linitial(objargs),
										(TypeName *) lsecond(objargs),
										false, -1);
			address.objectSubId = 0;
			break;
		case OBJECT_OPCLASS:
		case OBJECT_OPFAMILY:
			address = get_object_address_opcf(objtype, objname, objargs);
			break;
		case OBJECT_CAST:
			{
				TypeName   *sourcetype = (TypeName *) linitial(objname);
				TypeName   *targettype = (TypeName *) linitial(objargs);
				Oid			sourcetypeid = typenameTypeId(NULL, sourcetype, NULL);
				Oid			targettypeid = typenameTypeId(NULL, targettype, NULL);

				address.classId = CastRelationId;
				address.objectId =
//.........这里部分代码省略.........

//////////////////////////////////////////////////////////////////////////////
// 슬레이어 오브젝트
//////////////////////////////////////////////////////////////////////////////
void DoubleShot::execute (Slayer* pSlayer, ObjectID_t TargetObjectID,  SkillSlot* pSkillSlot, CEffectID_t CEffectID)
	throw(Error)
{
	__BEGIN_TRY __BEGIN_DEBUG

	//cout << "TID[" << Thread::self() << "]" << getSkillHandlerName() << " Begin" << endl;

	Assert(pSlayer != NULL);
	Assert(pSkillSlot != NULL);

	try 
	{
		Player* pPlayer = pSlayer->getPlayer();
		Zone* pZone = pSlayer->getZone();
		Assert(pPlayer != NULL);
		Assert(pZone != NULL);

		Creature* pTargetCreature = pZone->getCreature(TargetObjectID);
		//Assert(pTargetCreature != NULL);

		// NoSuch제거. by sigi. 2002.5.2
		if (pTargetCreature==NULL
			|| !canAttack(pSlayer, pTargetCreature )
			|| pTargetCreature->isNPC()) 
		{
			executeSkillFailException(pSlayer, getSkillType());
			//cout << "TID[" << Thread::self() << "]" << getSkillHandlerName() << " End" << endl;
			return;
		}

		bool bIncreaseDomainExp = pSlayer->isRealWearingEx(Slayer::WEAR_RIGHTHAND);

		GCAttackArmsOK1 _GCAttackArmsOK1;
		GCAttackArmsOK2 _GCAttackArmsOK2;
		GCAttackArmsOK3 _GCAttackArmsOK3;
		GCAttackArmsOK4 _GCAttackArmsOK4;
		GCAttackArmsOK5 _GCAttackArmsOK5;

		// 들고 있는 무기가 없거나, 총 계열 무기가 아니라면 기술을 쓸 수 없다.
		// 총 계열 무기 중에서도 SG나 SR은 DoubleShot를 쓸 수가 없다.
		// SR, SG 도 이제 쓸수 있다.
		// 2003.1.14 by bezz
		Item* pWeapon = pSlayer->getWearItem(Slayer::WEAR_RIGHTHAND);
		if (pWeapon == NULL || isArmsWeapon(pWeapon) == false )
//			pWeapon->getItemClass() == Item::ITEM_CLASS_SG || 
//			pWeapon->getItemClass() == Item::ITEM_CLASS_SR)
		{
			executeSkillFailException(pSlayer, getSkillType());
			//cout << "TID[" << Thread::self() << "]" << getSkillHandlerName() << " End" << endl;
			return;
		}

		SkillType_t       SkillType  = pSkillSlot->getSkillType();
		SkillInfo*        pSkillInfo = g_pSkillInfoManager->getSkillInfo(SkillType);
		SkillDomainType_t DomainType = pSkillInfo->getDomainType();
		SkillLevel_t      SkillLevel = pSkillSlot->getExpLevel();

		SkillInput input(pSlayer, pSkillSlot);
		SkillOutput output;
		computeOutput(input, output);

		// 페널티 값을 계산한다.
		int ToHitPenalty = getPercentValue(pSlayer->getToHit(), output.ToHit); 

		int  RequiredMP  = (int)pSkillInfo->getConsumeMP();
		bool bManaCheck   = hasEnoughMana(pSlayer, RequiredMP);
		bool bTimeCheck   = verifyRunTime(pSkillSlot);
		bool bRangeCheck  = verifyDistance(pSlayer, pTargetCreature, pWeapon->getRange());
		bool bBulletCheck = (getRemainBullet(pWeapon) > 0) ? true : false;
		bool bHitRoll     = HitRoll::isSuccess(pSlayer, pTargetCreature, ToHitPenalty);
		bool bPK          = verifyPK(pSlayer, pTargetCreature);

		// 총알 숫자는 무조건 떨어뜨린다.
		Bullet_t RemainBullet = 0;
		if (bBulletCheck)
		{
			// 총알 숫자를 떨어뜨리고, 저장하고, 남은 총알 숫자를 받아온다.
			decreaseBullet(pWeapon);
			// 한발쓸때마다 저장할 필요 없다. by sigi. 2002.5.9
			//pWeapon->save(pSlayer->getName(), STORAGE_GEAR, 0, Slayer::WEAR_RIGHTHAND, 0);
			RemainBullet = getRemainBullet(pWeapon);
		}

		if (bManaCheck && bTimeCheck && bRangeCheck && bBulletCheck && bHitRoll && bPK)
		{
			decreaseMana(pSlayer, RequiredMP, _GCAttackArmsOK1);

			_GCAttackArmsOK5.setSkillSuccess(true);
			_GCAttackArmsOK1.setSkillSuccess(true);

			bool bCriticalHit = false;

			// 데미지를 계산하고, quickfire 페널티를 가한다.
			// output.Damage가 음수이기 때문에, %값을 구해 더하면 결국 빼는 것이 된다.
			int Damage = computeDamage(pSlayer, pTargetCreature, SkillLevel/5, bCriticalHit);
			Damage += getPercentValue(Damage, output.Damage);
			Damage = max(0, Damage);
//.........这里部分代码省略.........

/*
 * get_relation_info -
 *	  Retrieves catalog information for a given relation.
 *
 * Given the Oid of the relation, return the following info into fields
 * of the RelOptInfo struct:
 *
 *	min_attr	lowest valid AttrNumber
 *	max_attr	highest valid AttrNumber
 *	indexlist	list of IndexOptInfos for relation's indexes
 *	pages		number of pages
 *	tuples		number of tuples
 *
 * Also, initialize the attr_needed[] and attr_widths[] arrays.  In most
 * cases these are left as zeroes, but sometimes we need to compute attr
 * widths here, and we may as well cache the results for costsize.c.
 *
 * If inhparent is true, all we need to do is set up the attr arrays:
 * the RelOptInfo actually represents the appendrel formed by an inheritance
 * tree, and so the parent rel's physical size and index information isn't
 * important for it.
 */
void
get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
                  RelOptInfo *rel)
{
    Index		varno = rel->relid;
    Relation	relation;
    bool		hasindex;
    List	   *indexinfos = NIL;
    bool		needs_longlock;

    /*
     * We need not lock the relation since it was already locked, either by
     * the rewriter or when expand_inherited_rtentry() added it to the query's
     * rangetable.
     */
    relation = heap_open(relationObjectId, NoLock);
    needs_longlock = rel_needs_long_lock(relationObjectId);

    rel->min_attr = FirstLowInvalidHeapAttributeNumber + 1;
    rel->max_attr = RelationGetNumberOfAttributes(relation);

    Assert(rel->max_attr >= rel->min_attr);
    rel->attr_needed = (Relids *)
                       palloc0((rel->max_attr - rel->min_attr + 1) * sizeof(Relids));
    rel->attr_widths = (int32 *)
                       palloc0((rel->max_attr - rel->min_attr + 1) * sizeof(int32));

    /*
     * CDB: Get partitioning key info for distributed relation.
     */
    rel->cdbpolicy = RelationGetPartitioningKey(relation);

    /*
     * Estimate relation size --- unless it's an inheritance parent, in which
     * case the size will be computed later in set_append_rel_pathlist, and we
     * must leave it zero for now to avoid bollixing the total_table_pages
     * calculation.
     */
    if (!inhparent)
    {
        cdb_estimate_rel_size
        (
            rel,
            relation,
            relation,
            rel->attr_widths - rel->min_attr,
            &rel->pages,
            &rel->tuples,
            &rel->cdb_default_stats_used
        );
    }

    /*
     * Make list of indexes.  Ignore indexes on system catalogs if told to.
     * Don't bother with indexes for an inheritance parent, either.
     */
    if (inhparent ||
            (IgnoreSystemIndexes && IsSystemClass(relation->rd_rel)))
        hasindex = false;
    else
        hasindex = relation->rd_rel->relhasindex;

    if (hasindex)
    {
        List	   *indexoidlist;
        ListCell   *l;
        LOCKMODE	lmode;

        /* Warn if indexed table needs ANALYZE. */
        if (rel->cdb_default_stats_used)
            cdb_default_stats_warning_for_table(relation->rd_id);

        indexoidlist = RelationGetIndexList(relation);

        /*
         * For each index, we get the same type of lock that the executor will
         * need, and do not release it.  This saves a couple of trips to the
         * shared lock manager while not creating any real loss of
//.........这里部分代码省略.........

int 
JoystickState::AxisPosition( int axis ) const
{
    Assert( (axis >= 0) && (axis < static_cast<int>(m_axes.size())) );
    return  m_axes[ axis ];
}

//make a series of photographs
do_photos()
{
	FILE *vfile,*upvfile;
	int photo_num=0;
	char savename[13];
	grs_canvas *photo_canvas;
	vms_vector viewer_pos;
	vms_matrix viewer_orient;

	vfile=fopen("vectors.lst","rt");
	upvfile=fopen("upvecs.c","wt");

	Assert(vfile!=NULL && upvfile!=NULL);

	fprintf(upvfile,"\n\n#include \"vecmat.h\"\n\nvms_vector up_vecs[] = {\n");

	photo_canvas = gr_create_canvas(64,64);

	gr_set_current_canvas(photo_canvas);

	while (!feof(vfile)) {
		vms_vector v;
		vms_matrix m;
		float x,y,z;
		int nf;

		nf = fscanf(vfile,"%f %f %f",&x,&y,&z);

		if (nf!=3) break;

		vm_vec_make(&v,fl2f(x),fl2f(y),fl2f(z));

		vm_vector_2_matrix(&m,&v,NULL,NULL);

		fprintf(upvfile,"\t\t\t{%#x,%#x,%#x},\n",m.uvec.x,m.uvec.y,m.uvec.z);

		vm_vec_scale(&v,PHOTO_DIST);

		vm_vec_add(&viewer_pos,&cube_position,&v);

		viewer_orient = m;
		vm_vec_negate(&viewer_orient.fvec);
		vm_vec_negate(&viewer_orient.rvec);

		gr_clear_canvas(129);
		g3_start_frame();

		g3_set_view_matrix(&viewer_pos,&viewer_orient,0x9000);

		draw_cube();

		g3_end_frame();

gr_set_current_canvas(Canv_game);
gr_ubitmap(0,0,&photo_canvas->cv_bitmap);
gr_set_current_canvas(photo_canvas);

		sprintf(savename,"cube_%02d.bbm",photo_num);

		iff_write_bitmap(savename,&photo_canvas->cv_bitmap,gr_palette);

		photo_num++;

	}

	gr_free_canvas(photo_canvas);

	fprintf(upvfile,"\t\t};\n");

	fclose(vfile);
	fclose(upvfile);

}

//-----------------------------------------------------------------------------
// Purpose: 
// Input  : bool - 
//-----------------------------------------------------------------------------
void C_TEBaseBeam::PostDataUpdate( DataUpdateType_t updateType )
{
	Assert( 0 );
}

//.........这里部分代码省略.........

	nargs = list ? PySequence_Length(list) : 0;

	plan->nargs = nargs;
	plan->types = nargs ? palloc(sizeof(Oid) * nargs) : NULL;
	plan->values = nargs ? palloc(sizeof(Datum) * nargs) : NULL;
	plan->args = nargs ? palloc(sizeof(PLyTypeInfo) * nargs) : NULL;

	MemoryContextSwitchTo(oldcontext);

	oldcontext = CurrentMemoryContext;
	oldowner = CurrentResourceOwner;

	PLy_spi_subtransaction_begin(oldcontext, oldowner);

	PG_TRY();
	{
		int			i;
		PLyExecutionContext *exec_ctx = PLy_current_execution_context();

		/*
		 * the other loop might throw an exception, if PLyTypeInfo member
		 * isn't properly initialized the Py_DECREF(plan) will go boom
		 */
		for (i = 0; i < nargs; i++)
		{
			PLy_typeinfo_init(&plan->args[i], plan->mcxt);
			plan->values[i] = PointerGetDatum(NULL);
		}

		for (i = 0; i < nargs; i++)
		{
			char	   *sptr;
			HeapTuple	typeTup;
			Oid			typeId;
			int32		typmod;

			optr = PySequence_GetItem(list, i);
			if (PyString_Check(optr))
				sptr = PyString_AsString(optr);
			else if (PyUnicode_Check(optr))
				sptr = PLyUnicode_AsString(optr);
			else
			{
				ereport(ERROR,
						(errmsg("plpy.prepare: type name at ordinal position %d is not a string", i)));
				sptr = NULL;	/* keep compiler quiet */
			}

			/********************************************************
			 * Resolve argument type names and then look them up by
			 * oid in the system cache, and remember the required
			 *information for input conversion.
			 ********************************************************/

			parseTypeString(sptr, &typeId, &typmod, false);

			typeTup = SearchSysCache1(TYPEOID,
									  ObjectIdGetDatum(typeId));
			if (!HeapTupleIsValid(typeTup))
				elog(ERROR, "cache lookup failed for type %u", typeId);

			Py_DECREF(optr);

			/*
			 * set optr to NULL, so we won't try to unref it again in case of
			 * an error
			 */
			optr = NULL;

			plan->types[i] = typeId;
			PLy_output_datum_func(&plan->args[i], typeTup, exec_ctx->curr_proc->langid, exec_ctx->curr_proc->trftypes);
			ReleaseSysCache(typeTup);
		}

		pg_verifymbstr(query, strlen(query), false);
		plan->plan = SPI_prepare(query, plan->nargs, plan->types);
		if (plan->plan == NULL)
			elog(ERROR, "SPI_prepare failed: %s",
				 SPI_result_code_string(SPI_result));

		/* transfer plan from procCxt to topCxt */
		if (SPI_keepplan(plan->plan))
			elog(ERROR, "SPI_keepplan failed");

		PLy_spi_subtransaction_commit(oldcontext, oldowner);
	}
	PG_CATCH();
	{
		Py_DECREF(plan);
		Py_XDECREF(optr);

		PLy_spi_subtransaction_abort(oldcontext, oldowner);
		return NULL;
	}
	PG_END_TRY();

	Assert(plan->plan != NULL);
	return (PyObject *) plan;
}

/**
 * Destroys a PDM thread.
 *
 * This will wakeup the thread, tell it to terminate, and wait for it terminate.
 *
 * @returns VBox status code.
 *          This reflects the success off destroying the thread and not the exit code
 *          of the thread as this is stored in *pRcThread.
 * @param   pThread         The thread to destroy.
 * @param   pRcThread       Where to store the thread exit code. Optional.
 * @thread  The emulation thread (EMT).
 */
VMMR3DECL(int) PDMR3ThreadDestroy(PPDMTHREAD pThread, int *pRcThread)
{
    /*
     * Assert sanity.
     */
    AssertPtrReturn(pThread, VERR_INVALID_POINTER);
    AssertReturn(pThread->u32Version == PDMTHREAD_VERSION, VERR_INVALID_MAGIC);
    Assert(pThread->Thread != RTThreadSelf());
    AssertPtrNullReturn(pRcThread, VERR_INVALID_POINTER);
    PVM pVM = pThread->Internal.s.pVM;
    VM_ASSERT_EMT(pVM);
    PUVM pUVM = pVM->pUVM;

    /*
     * Advance the thread to the terminating state.
     */
    int rc = VINF_SUCCESS;
    if (pThread->enmState <= PDMTHREADSTATE_TERMINATING)
    {
        for (;;)
        {
            PDMTHREADSTATE enmState = pThread->enmState;
            switch (enmState)
            {
                case PDMTHREADSTATE_RUNNING:
                    if (!pdmR3AtomicCmpXchgState(pThread, PDMTHREADSTATE_TERMINATING, enmState))
                        continue;
                    rc = pdmR3ThreadWakeUp(pThread);
                    break;

                case PDMTHREADSTATE_SUSPENDED:
                case PDMTHREADSTATE_SUSPENDING:
                case PDMTHREADSTATE_RESUMING:
                case PDMTHREADSTATE_INITIALIZING:
                    if (!pdmR3AtomicCmpXchgState(pThread, PDMTHREADSTATE_TERMINATING, enmState))
                        continue;
                    break;

                case PDMTHREADSTATE_TERMINATING:
                case PDMTHREADSTATE_TERMINATED:
                    break;

                default:
                    AssertMsgFailed(("enmState=%d\n", enmState));
                    rc = VERR_PDM_THREAD_IPE_2;
                    break;
            }
            break;
        }
    }
    int rc2 = RTSemEventMultiSignal(pThread->Internal.s.BlockEvent);
    AssertRC(rc2);

    /*
     * Wait for it to terminate and the do cleanups.
     */
    rc2 = RTThreadWait(pThread->Thread, RT_SUCCESS(rc) ? 60*1000 : 150, pRcThread);
    if (RT_SUCCESS(rc2))
    {
        /* make it invalid. */
        pThread->u32Version = 0xffffffff;
        pThread->enmState = PDMTHREADSTATE_INVALID;
        pThread->Thread = NIL_RTTHREAD;

        /* unlink */
        RTCritSectEnter(&pUVM->pdm.s.ListCritSect);
        if (pUVM->pdm.s.pThreads == pThread)
        {
            pUVM->pdm.s.pThreads = pThread->Internal.s.pNext;
            if (!pThread->Internal.s.pNext)
                pUVM->pdm.s.pThreadsTail = NULL;
        }
        else
        {
            PPDMTHREAD pPrev = pUVM->pdm.s.pThreads;
            while (pPrev && pPrev->Internal.s.pNext != pThread)
                pPrev = pPrev->Internal.s.pNext;
            Assert(pPrev);
            if (pPrev)
                pPrev->Internal.s.pNext = pThread->Internal.s.pNext;
            if (!pThread->Internal.s.pNext)
                pUVM->pdm.s.pThreadsTail = pPrev;
        }
        pThread->Internal.s.pNext = NULL;
        RTCritSectLeave(&pUVM->pdm.s.ListCritSect);

        /* free the resources */
        RTSemEventMultiDestroy(pThread->Internal.s.BlockEvent);
//.........这里部分代码省略.........

//.........这里部分代码省略.........
    LPPLLOCALVARS lpplLocalVars;        // Ptr to re-entrant vars
    LPUBOOL       lpbCtrlBreak;         // Ptr to Ctrl-Break flag
    LPVARARRAY_HEADER lpMemHdrRht;      // Ptr to right arg header

    // Get the thread's ptr to local vars
    lpplLocalVars = TlsGetValue (dwTlsPlLocalVars);

    // Get the ptr to the Ctrl-Break flag
    lpbCtrlBreak = &lpplLocalVars->bCtrlBreak;

    //***************************************************************
    // This function is not sensitive to the axis operator,
    //   so signal a syntax error if present
    //***************************************************************

    if (lptkAxis NE NULL)
        goto AXIS_SYNTAX_EXIT;

    // Get the attributes (Type, NELM, and Rank) of the left & right args
    AttrsOfToken (lptkLftArg, &aplTypeLft, &aplNELMLft, &aplRankLft, NULL);
    AttrsOfToken (lptkRhtArg, &aplTypeRht, &aplNELMRht, &aplRankRht, NULL);

    // Get left and right arg's global ptrs
    GetGlbPtrs_LOCK (lptkLftArg, &hGlbLft, &lpMemLft);
    GetGlbPtrs_LOCK (lptkRhtArg, &hGlbRht, &lpMemRht);

    // Check for RANK ERROR
    if (IsMultiRank (aplRankLft))
        goto RANK_EXIT;

    // Check for LENGTH ERROR
    if (aplNELMLft NE aplRankRht)
        goto LENGTH_EXIT;

    // Treat the left arg as an axis
    if (!CheckAxis_EM (lptkLftArg,      // The "axis" token
                       aplRankRht,      // All values less than this
                       FALSE,           // TRUE iff scalar or one-element vector only
                       FALSE,           // TRUE iff want sorted axes
                       TRUE,            // TRUE iff axes must be contiguous
                       TRUE,            // TRUE iff duplicate axes are allowed
                       NULL,            // TRUE iff fractional values allowed
                      &aplRankRes,      // Return last axis value
                       NULL,            // Return # elements in axis vector
                      &hGlbAxis))       // Return HGLOBAL with APLUINT axis values
        goto DOMAIN_EXIT;

    // Map APA right arg to INT result
    if (IsSimpleAPA (aplTypeRht))
        aplTypeRes = ARRAY_INT;
    else
        aplTypeRes = aplTypeRht;

    // Strip out the simple scalar right argument case
    if (IsScalar (aplRankRht) && IsSimpleNH (aplTypeRes))
    {
        // Allocate a new YYRes
        lpYYRes = YYAlloc ();

        // Split cases based upon the right arg's token type
        switch (lptkRhtArg->tkFlags.TknType)
        {
            case TKT_VARNAMED:
                // tkData is an LPSYMENTRY
                Assert (GetPtrTypeDir (lptkRhtArg->tkData.tkVoid) EQ PTRTYPE_STCONST);

                // If it's not immediate, we must look inside the array
                if (!lptkRhtArg->tkData.tkSym->stFlags.Imm)
                {
                    // stData is a valid HGLOBAL variable array
                    Assert (IsGlbTypeVarDir_PTB (lptkRhtArg->tkData.tkSym->stData.stGlbData));
#ifdef DEBUG
                    // If we ever get here, we must have missed a type demotion
                    DbgStop ();             // #ifdef DEBUG
#endif
                } // End IF

                // Handle the immediate case

                // Fill in the result token
                lpYYRes->tkToken.tkFlags.TknType   = TKT_VARIMMED;
                lpYYRes->tkToken.tkFlags.ImmType   = lptkRhtArg->tkData.tkSym->stFlags.ImmType;
////////////////lpYYRes->tkToken.tkFlags.NoDisplay = FALSE; // Already zero from YYAlloc
                lpYYRes->tkToken.tkData.tkLongest  = lptkRhtArg->tkData.tkSym->stData.stLongest;
                lpYYRes->tkToken.tkCharIndex       = lptkFunc->tkCharIndex;

                break;

            case TKT_VARIMMED:
                // Fill in the result token
                lpYYRes->tkToken = *lptkRhtArg;

                break;

            defstop
                break;
        } // End SWITCH

        goto NORMAL_EXIT;
    } // End IF

/**
 * The PDM thread function.
 *
 * @returns return from pfnThread.
 *
 * @param   Thread  The thread handle.
 * @param   pvUser  Pointer to the PDMTHREAD structure.
 */
static DECLCALLBACK(int) pdmR3ThreadMain(RTTHREAD Thread, void *pvUser)
{
    PPDMTHREAD pThread = (PPDMTHREAD)pvUser;
    Log(("PDMThread: Initializing thread %RTthrd / %p / '%s'...\n", Thread, pThread, RTThreadGetName(Thread)));
    pThread->Thread = Thread;

    PUVM pUVM = pThread->Internal.s.pVM->pUVM;
    if (   pUVM->pVmm2UserMethods
        && pUVM->pVmm2UserMethods->pfnNotifyPdmtInit)
        pUVM->pVmm2UserMethods->pfnNotifyPdmtInit(pUVM->pVmm2UserMethods, pUVM);

    /*
     * The run loop.
     *
     * It handles simple thread functions which returns when they see a suspending
     * request and leaves the PDMR3ThreadIAmSuspending and PDMR3ThreadIAmRunning
     * parts to us.
     */
    int rc;
    for (;;)
    {
        switch (pThread->Internal.s.enmType)
        {
            case PDMTHREADTYPE_DEVICE:
                rc = pThread->u.Dev.pfnThread(pThread->u.Dev.pDevIns, pThread);
                break;

            case PDMTHREADTYPE_USB:
                rc = pThread->u.Usb.pfnThread(pThread->u.Usb.pUsbIns, pThread);
                break;

            case PDMTHREADTYPE_DRIVER:
                rc = pThread->u.Drv.pfnThread(pThread->u.Drv.pDrvIns, pThread);
                break;

            case PDMTHREADTYPE_INTERNAL:
                rc = pThread->u.Int.pfnThread(pThread->Internal.s.pVM, pThread);
                break;

            case PDMTHREADTYPE_EXTERNAL:
                rc = pThread->u.Ext.pfnThread(pThread);
                break;

            default:
                AssertMsgFailed(("%d\n", pThread->Internal.s.enmType));
                rc = VERR_PDM_THREAD_IPE_1;
                break;
        }
        if (RT_FAILURE(rc))
            break;

        /*
         * If this is a simple thread function, the state will be suspending
         * or initializing now. If it isn't we're supposed to terminate.
         */
        if (    pThread->enmState != PDMTHREADSTATE_SUSPENDING
            &&  pThread->enmState != PDMTHREADSTATE_INITIALIZING)
        {
            Assert(pThread->enmState == PDMTHREADSTATE_TERMINATING);
            break;
        }
        rc = PDMR3ThreadIAmSuspending(pThread);
        if (RT_FAILURE(rc))
            break;
        if (pThread->enmState != PDMTHREADSTATE_RESUMING)
        {
            Assert(pThread->enmState == PDMTHREADSTATE_TERMINATING);
            break;
        }

        rc = PDMR3ThreadIAmRunning(pThread);
        if (RT_FAILURE(rc))
            break;
    }

    if (RT_FAILURE(rc))
        LogRel(("PDMThread: Thread '%s' (%RTthrd) quit unexpectedly with rc=%Rrc.\n", RTThreadGetName(Thread), Thread, rc));

    /*
     * Advance the state to terminating and then on to terminated.
     */
    for (;;)
    {
        PDMTHREADSTATE enmState = pThread->enmState;
        if (    enmState == PDMTHREADSTATE_TERMINATING
            ||  pdmR3AtomicCmpXchgState(pThread, PDMTHREADSTATE_TERMINATING, enmState))
            break;
    }

    ASMAtomicXchgSize(&pThread->enmState, PDMTHREADSTATE_TERMINATED);
    int rc2 = RTThreadUserSignal(Thread); AssertRC(rc2);

//.........这里部分代码省略.........