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dacsds.cpp
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/*##############################################################################
HPCC SYSTEMS software Copyright (C) 2012 HPCC Systems.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
############################################################################## */
#define da_decl __declspec(dllexport)
#include "platform.h"
#include <typeinfo>
#include "jlib.hpp"
#include "jfile.hpp"
#include "javahash.hpp"
#include "javahash.tpp"
#include "jptree.ipp"
#include "mpbuff.hpp"
#include "mpcomm.hpp"
#include "mputil.hpp"
#include "dacoven.hpp"
#include "daserver.hpp"
#include "dasess.hpp"
#include "daclient.hpp"
#include "dadfs.hpp"
#include "dasds.ipp" // common header for client/server sds
#include "dacsds.ipp"
static unsigned clientThrottleLimit;
static unsigned clientThrottleDelay;
#define MIN_GETXPATHS_CONNECT_SVER "3.2"
#define MIN_APPEND_OPT_SVER "3.3"
#define MIN_GETIDS_SVER "3.5"
static ISDSManager *SDSManager=NULL;
static CriticalSection SDScrit;
#define CHECK_ORPHANED(XSTR) \
if (orphaned) \
{ \
LOG(MCerror, unknownJob, XSTR": Orphaned connection (xpath=%s, sessionId=%"I64F"d)", xpath.get(), sessionId); \
return; \
}
////////////////////
class MonitoredChildMap : public ChildMap
{
CClientRemoteTree &owner;
public:
MonitoredChildMap(CClientRemoteTree &_owner) : ChildMap(), owner(_owner) { }
virtual bool replace(const char *name, IPropertyTree *tree)
{
// suppress notification of old node - old node has been preserved.
bool changes = owner.queryConnection().queryStateChanges();
owner.queryConnection().setStateChanges(false);
bool res = ChildMap::replace(name, tree);
owner.queryConnection().setStateChanges(changes);
return res;
}
virtual void onRemove(void *e)
{
if (owner.queryConnection().queryStateChanges())
{
CClientRemoteTree *child = (CClientRemoteTree *)((IPropertyTree *)e);
assertex(child);
__int64 sId = child->queryServerId();
if (sId)
owner.registerDeleted(child->queryName(), 0, sId);
else
{
IPTArrayValue *value = child->queryValue();
if (value)
{
if (value->isArray())
{
unsigned i = value->elements();
while (i--)
{
CClientRemoteTree &child = *(CClientRemoteTree *)value->queryElement(i);
sId = child.queryServerId();
if (sId)
owner.registerDeleted(child.queryName(), i, sId);
}
}
}
}
}
ChildMap::onRemove(e);
}
};
bool collectChildless(CClientRemoteTree *parent, const char *xpath, CRTArray *childLessList, StringArray *headArr, StringArray *tailArr)
{
bool res = false;
StringBuffer head;
const char *tail;
if (xpath && '/' == *xpath && '/' == *(xpath+1))
{
head.append("*");
tail = xpath;
}
else
{
tail = xpath?queryHead(xpath, head):NULL;
if (!tail && xpath)
head.append(xpath);
}
if (parent->queryChildren())
{
if (head.length())
{
Owned<IPropertyTreeIterator> iter = parent->getElements(head.str());
ForEach (*iter)
{
res |= collectChildless((CClientRemoteTree *)&iter->query(), tail, childLessList, headArr, tailArr);
if (NULL == childLessList && res)
break;
}
}
else
{
Owned<IPropertyTreeIterator> iter = parent->getElements("*");
ForEach (*iter)
{
res |= collectChildless((CClientRemoteTree *)&iter->query(), NULL, childLessList, headArr, tailArr);
if (NULL == childLessList && res)
break;
}
}
}
else if (parent->hasChildren()) // i.e. no local children, but server flagged as having
{
if (childLessList)
{
childLessList->append(*parent);
if (headArr)
headArr->append(head.length()?head.str():"");
if (tailArr)
tailArr->append(tail?tail:"");
}
res = true;
}
return res;
}
////////////////////
CRemoteConnection::CRemoteConnection(ISDSConnectionManager &manager, ConnectionId connectionId, const char *xpath, SessionId sessionId, unsigned mode, unsigned timeout)
: CConnectionBase(manager, connectionId, xpath, sessionId, mode, timeout)
{
INIT_NAMEDCOUNT;
lazyFetch = true;
stateChanges = true;
connected = true;
orphaned = false;
serverIterAvailable = querySDS().queryProperties().getPropBool("Client/@serverIterAvailable");
serverIter = querySDS().queryProperties().getPropBool("Client/@serverIter");
useAppendOpt = querySDS().queryProperties().getPropBool("Client/@useAppendOpt");
serverGetIdsAvailable = querySDS().queryProperties().getPropBool("Client/@serverGetIdsAvailable");
lockCount = 0;
}
void CRemoteConnection::clearCommitChanges()
{
CClientRemoteTree *tree = (CClientRemoteTree *) queryRoot();
bool lazyFetch = setLazyFetch(false);
tree->clearCommitChanges();
setLazyFetch(lazyFetch);
}
void CRemoteConnection::getDetails(MemoryBuffer &mb)
{
mb.append(connectionId);
mb.append(sessionId);
mb.append(mode);
mb.append(timeout);
}
// IRemoteConnection impl.
void CRemoteConnection::changeMode(unsigned mode, unsigned timeout, bool suppressReloads)
{
if (orphaned)
{
LOG(MCerror, unknownJob, "changeMode: Orphaned connection (xpath=%s, sessionId=%"I64F"d)", xpath.get(), sessionId);
throw MakeSDSException(SDSExcpt_OrphanedNode, "%s", queryXPath());
}
assertex(connected);
manager.changeMode(*this, mode, timeout, suppressReloads);
}
void CRemoteConnection::rollback()
{
CConnectionLock b(*this);
CHECK_ORPHANED("rollback");
assertex(connected);
CDisableFetchChangeBlock block(*this);
if (root->queryState())
reload(); // all
else
{
class Cop : implements IIteratorOperator
{
public:
virtual bool applyTop(IPropertyTree &_tree) { return true; }
virtual bool applyChild(IPropertyTree &parent, IPropertyTree &_child, bool &levelBreak)
{
CRemoteTreeBase &child = (CRemoteTreeBase &)_child;
if (child.queryState())
{
((CRemoteTreeBase &)parent).clearChildren(); // wipe children - SDS will lazy fetch them again as needed.
levelBreak = true;
return false;
}
return true;
}
} op;
CIterationOperation iop(op);
iop.iterate(*root);
}
}
void CRemoteConnection::_rollbackChildren(IPropertyTree *_parent, bool force)
{
if (force)
{
CRemoteTreeBase *parent = QUERYINTERFACE(_parent, CRemoteTreeBase);
if (parent)
parent->clearChildren();
}
else
{
class CRollback
{
public:
void apply(IPropertyTree &_parent)
{
CRemoteTreeBase *parent = QUERYINTERFACE(&_parent, CRemoteTreeBase);
if (!parent)
return;
if (parent->queryState())
parent->clearChildren();
else
{
Owned<IPropertyTreeIterator> iter = parent->getElements("*");
doit(*iter);
}
}
void doit(IPropertyTreeIterator &iter)
{
ForEach (iter)
apply(iter.query());
}
} op;
op.apply(*_parent);
}
}
void CRemoteConnection::rollbackChildren(IPropertyTree *parent, bool force)
{
CConnectionLock b(*this);
CHECK_ORPHANED("rollbackChildren");
assertex(connected);
CDisableFetchChangeBlock block(*this);
_rollbackChildren(parent, force);
}
void CRemoteConnection::rollbackChildren(const char *_xpath, bool force)
{
CConnectionLock b(*this);
CHECK_ORPHANED("rollbackChildren");
assertex(connected);
CDisableFetchChangeBlock block(*this);
Owned<IPropertyTreeIterator> iter = root->getElements(_xpath);
ForEach (*iter)
_rollbackChildren(&iter->query(), force);
}
void CRemoteConnection::reload(const char *_xpath)
{
CConnectionLock b(*this);
CHECK_ORPHANED("close");
assertex(connected);
CDisableFetchChangeBlock block(*this);
// NB: any linked client trees will still be active.
if (_xpath == NULL || '\0' == *_xpath)
{
clearChanges(*root);
__int64 serverId = root->queryServerId();
CRemoteTreeBase *newTree = manager.get(*this, serverId);
if (NULL == newTree) throw MakeSDSException(SDSExcpt_Reload);
root.setown(newTree);
}
else
{
ICopyArrayOf<CClientRemoteTree> parents;
IArrayOf<CClientRemoteTree> children;
if ('/' == *_xpath) ++_xpath;
StringBuffer head;
const char *tail = splitXPath(_xpath, head);
Owned<IPropertyTreeIterator> iter = root->getElements(head.str());
ForEach (*iter)
{
CClientRemoteTree &parent = (CClientRemoteTree &)iter->query();
Owned<IPropertyTreeIterator> childIter = parent.getElements(tail);
ForEach (*childIter)
{
parents.append(parent);
children.append(*LINK((CClientRemoteTree *)&childIter->query()));
}
ForEachItemIn(c, children)
{
CClientRemoteTree &child = children.item(c);
clearChanges(child);
parent.removeTree(&child);
}
}
ForEachItemIn(e, children)
{
CClientRemoteTree &child = (CClientRemoteTree &)children.item(e);
CClientRemoteTree &parent = (CClientRemoteTree &)parents.item(e);
if (child.queryServerId())
{
IPropertyTree *newChild = manager.get(*this, child.queryServerId());
if (newChild)
parent.addPropTree(child.queryName(), newChild);
}
}
}
}
void CRemoteConnection::commit()
{
CConnectionLock b(*this);
CHECK_ORPHANED("commit");
assertex(connected);
manager.commit(*this, NULL);
}
void CRemoteConnection::close(bool deleteRoot)
{
CConnectionLock b(*this);
CHECK_ORPHANED("close");
if (connected)
manager.commit(*this, &deleteRoot);
connected=false;
}
SubscriptionId CRemoteConnection::subscribe(ISDSConnectionSubscription ¬ify)
{
CSDSConnectionSubscriberProxy *subscriber = new CSDSConnectionSubscriberProxy(notify, connectionId);
querySubscriptionManager(SDSCONN_PUBLISHER)->add(subscriber, subscriber->getId());
return subscriber->getId();
}
void CRemoteConnection::unsubscribe(SubscriptionId id)
{
querySubscriptionManager(SDSCONN_PUBLISHER)->remove(id);
}
class CClientXPathIterator : public CXPathIterator
{
CRemoteConnection &connection;
public:
CClientXPathIterator(CRemoteConnection &_connection, IPropertyTree *root, IPropertyTree *matchTree, IPTIteratorCodes flags) : CXPathIterator(root, matchTree, flags), connection(_connection)
{
connection.Link();
}
~CClientXPathIterator()
{
connection.Release();
}
virtual IPropertyTree *queryChild(IPropertyTree *parent, const char *path)
{
// NB: this is going to fetch into local cache what is necessary to satisfy prop[X]
CSetServerIterBlock b(connection, false);
return parent->queryPropTree(path);
}
};
void mergeXPathPTree(IPropertyTree *target, IPropertyTree *toMerge)
{
Owned<IPropertyTreeIterator> iter = toMerge->getElements("*");
ForEach (*iter)
{
IPropertyTree &e = iter->query();
StringBuffer path(e.queryName());
IPropertyTree *existing = target->queryPropTree(path.append("[@pos=\"").append(e.queryProp("@pos")).append("\"]").str());
if (existing)
mergeXPathPTree(existing, &e);
else
target->addPropTree(e.queryName(), LINK(&e));
}
}
bool removeLocals(CRemoteConnection &connection, CRemoteTreeBase *tree, IPropertyTree *match)
{
if (0 == tree->queryServerId())
return false;
Owned<IPropertyTreeIterator> iter = match->getElements("*");
bool res = false;
StringArray toDelete;
ForEach (*iter)
{
IPropertyTree &child = iter->query();
StringBuffer childPath(child.queryName());
CRemoteTreeBase *storeChild;
{
CSetServerIterBlock b(connection, false);
CDisableLazyFetchBlock b2(connection);
storeChild = (CRemoteTreeBase *)tree->queryPropTree(childPath.append('[').append(child.queryProp("@pos")).append(']').str());
}
if (storeChild)
{
if (0 != storeChild->queryServerId())
{
bool childRes = removeLocals(connection, storeChild, &child);
if (childRes)
{
unsigned c = 0;
Owned<IPropertyTreeIterator> iter = child.getElements("*");
ForEach (*iter) c++;
if (0 == c)
{
toDelete.append(childPath.str());
res = true;
}
}
}
else
{
toDelete.append(childPath.str());
res = true;
}
}
}
ForEachItemIn(d, toDelete)
match->removeProp(toDelete.item(d));
return res;
}
void extractServerIds(IPropertyTree &tree, MemoryBuffer &mb, bool completeTailBranch)
{
__int64 serverId = tree.getPropInt64("@serverId");
assertex(serverId);
mb.append(serverId);
Owned<IPropertyTreeIterator> iter = tree.getElements("*");
if (iter->first())
{
mb.append((unsigned) 1);
do
{
extractServerIds(iter->query(), mb, completeTailBranch);
}
while (iter->next());
}
else
mb.append(completeTailBranch ? (unsigned)0 : (unsigned)1);
}
static void walkAndFill(IPropertyTree &tree, CClientRemoteTree &parent, MemoryBuffer &mb, bool childrenCanBeMissing)
{
parent.createChildMap();
bool r;
if (childrenCanBeMissing)
mb.read(r);
else
r = true;
if (r)
parent.deserializeChildrenRT(mb);
Owned<IPropertyTreeIterator> iter = tree.getElements("*");
ForEach (*iter)
{
IPropertyTree &elem = iter->query();
StringBuffer path(elem.queryName());
path.append("[").append(elem.queryProp("@pos")).append("]");
CClientRemoteTree *child = (CClientRemoteTree *)parent.queryPropTree(path.str());
assertex(child);
walkAndFill(elem, *child, mb, childrenCanBeMissing);
}
}
IPropertyTreeIterator *CRemoteConnection::doGetElements(CClientRemoteTree *tree, const char *xpath, IPTIteratorCodes flags)
{
CConnectionLock b(*this);
CSetServerIterBlock b2(*this, false);
Owned<IPropertyTree> matchTree, serverMatchTree;
StringAttr path;
if (xpath)
{
unsigned l = strlen(xpath);
if ('/' == *(xpath+l-1))
path.set(xpath, l-1);
else
path.set(xpath);
}
bool remoteGet = queryServerGetIdsAvailable() && iptiter_remoteget == (flags & iptiter_remoteget);
{
CDisableLazyFetchBlock b(*this);
if (collectChildless(tree, path.get(), NULL, NULL, NULL))
{
serverMatchTree.setown(queryManager().getXPaths(tree->queryServerId(), xpath, remoteGet));
if (serverMatchTree && removeLocals(*this, tree, serverMatchTree))
serverMatchTree.clear();
}
// if all nodes had server-side children, then there'd be no point in this
matchTree.setown(getXPathMatchTree(*tree, xpath));
}
if (matchTree && serverMatchTree)
mergeXPathPTree(matchTree, serverMatchTree);
else if (serverMatchTree)
matchTree.setown(LINK(serverMatchTree));
else if (!matchTree)
return createNullPTreeIterator();
if (remoteGet && serverMatchTree)
queryManager().ensureLocal(*this, *tree, serverMatchTree, flags);
return new CClientXPathIterator(*this, tree, matchTree, flags & ~iptiter_remote);
}
IPropertyTreeIterator *CRemoteConnection::getElements(const char *xpath, IPTIteratorCodes flags)
{
if (!serverIterAvailable)
throw MakeSDSException(SDSExcpt_VersionMismatch, "Server-side getElements not supported by server versions prior to "MIN_GETXPATHS_CONNECT_SVER);
flags |= iptiter_remote;
return root->getElements(xpath, flags);
}
/////////////////
CClientRemoteTree::CClientRemoteTree(CRemoteConnection &conn, CPState _state)
: CRemoteTreeBase(NULL, NULL, NULL, _state), connection(conn), serverTreeInfo(0)
{
INIT_NAMEDCOUNT;
assertex(!isnocase());
}
CClientRemoteTree::CClientRemoteTree(const char *name, IPTArrayValue *value, ChildMap *children, CRemoteConnection &conn, CPState state)
: CRemoteTreeBase(name, value, children, state), connection(conn), serverTreeInfo(0)
{
INIT_NAMEDCOUNT;
assertex(!isnocase());
}
void CClientRemoteTree::beforeDispose()
{
if (queryStateChanges())
connection.clearChanges(*this);
}
void CClientRemoteTree::Link() const
{
connection.Link(); // inc ref count on connection
CRemoteTreeBase::Link();
}
bool CClientRemoteTree::Release() const
{
//Note: getLinkCount() is not thread safe.
if (1 < getLinkCount()) //NH -> JCS - you sure this is best way to do this?
{
bool res = CRemoteTreeBase::Release();
connection.Release(); // if this tree is not being destroyed then decrement usage count on connection
return res;
}
else
return CRemoteTreeBase::Release();
}
void CClientRemoteTree::deserializeSelfRT(MemoryBuffer &mb)
{
CRemoteTreeBase::deserializeSelfRT(mb);
mb.read(serverTreeInfo);
}
void CClientRemoteTree::deserializeChildrenRT(MemoryBuffer &src)
{
// if and only if there are children, must create monitored map here otherwise a non-monitored map could be create in base
if (!children)
{
StringAttr eName;
size32_t pos = src.getPos();
src.read(eName);
if (eName.length())
createChildMap();
src.reset(pos);
}
CRemoteTreeBase::deserializeChildrenRT(src);
}
bool CClientRemoteTree::renameTree(IPropertyTree *child, const char *newName)
{
class DisableStateChanges // supress reset that would result from ownPTree via addPropTree below
{
bool changes;
CRemoteConnection &c;
public:
DisableStateChanges(CRemoteConnection &_c) : c(_c) { changes = c.queryStateChanges(); c.setStateChanges(false); }
~DisableStateChanges() { reset(); }
void reset() { c.setStateChanges(changes); }
} dc(connection);
Linked<IPropertyTree> tmp = child;
StringAttr oldName = child->queryName();
if (removeTree(child))
{
addPropTree(newName, child);
tmp.getClear(); // addPropTree has taken ownership.
dc.reset();
__int64 id = ((CClientRemoteTree *)child)->queryServerId();
if (id)
{
unsigned pos = findChild(child);
registerRenamed(((CClientRemoteTree *)child)->queryName(), oldName, pos+1, id); // flag new element as changed.
}
return true;
}
return false;
}
IPropertyTree *CClientRemoteTree::queryBranch(const char *xpath) const
{
return const_cast<CClientRemoteTree *>(this)->_queryBranch(xpath);
}
IPropertyTree *CClientRemoteTree::_queryBranch(const char *xpath)
{
if (queryLazyFetch())
{
CRTArray childLessList;
StringArray headArr, tailArr;
StringAttr path;
if (xpath)
{
unsigned l = strlen(xpath);
if ('/' == *(xpath+l-1))
path.set(xpath, l-1);
else
path.set(xpath);
}
CConnectionLock b(connection);
bool r;
{ CDisableLazyFetchBlock b2(connection);
r = collectChildless(this, xpath, &childLessList, &headArr, &tailArr);
}
if (r)
{
bool getAll = true;
ForEachItemIn(c, childLessList)
{
IPropertyTree &child = childLessList.item(c);
const char *tail = tailArr.item(c);
if (!*tail) tail = NULL;
const char *head = headArr.item(c);
if (!*head) head = NULL;
if (head || tail)
{
getAll = false;
break;
}
}
if (getAll)
queryManager().getChildrenFor(childLessList, connection, 0);
else
{
bool useServerIter = connection.queryServerGetIdsAvailable();
// bug in matching tree creation caused failure if path pointed to self
if (useServerIter && queryDaliServerVersion().compare("3.7") < 0)
{
CDisableLazyFetchBlock b2(connection);
const IPropertyTree *me = queryPropTree(xpath);
if (me && me==this)
useServerIter = false;
}
if (useServerIter)
{
CDisableLazyFetchBlock b2(connection);
Owned<IPropertyTree> serverMatchTree = queryManager().getXPaths(queryServerId(), xpath, true);
if (serverMatchTree && !removeLocals(connection, this, serverMatchTree))
queryManager().ensureLocal(connection, *this, serverMatchTree);
return queryPropTree(xpath); // intentionally inside disabled lazy fetching block, as now all local
}
else
{
queryManager().getChildrenFor(childLessList, connection, 1); // get 1 level of all parents without children that matched xpath
ForEachItemIn(c, childLessList)
{
IPropertyTree &child = childLessList.item(c);
const char *tail = tailArr.item(c);
const char *head = headArr.item(c);
if (!tail) // no children _below_ the tail or no match for tail portion of xpath
{
// get all nodes below
CRTArray list;
Owned<IPropertyTreeIterator> iter = child.getElements(head);
ForEach (*iter)
{
IPropertyTree &c = iter->query();
list.append((CRemoteTreeBase &)iter->query());
}
queryManager().getChildrenFor(list, connection, 0);
}
else
{
// couldn't fully match match against partial cache, request more missing children
Owned<IPropertyTreeIterator> iter = child.getElements(head);
ForEach (*iter)
{
IPropertyTree &e = iter->query();
e.queryBranch(tail);
}
}
}
}
}
}
}
return queryPropTree(xpath);
}
ChildMap *CClientRemoteTree::checkChildren() const
{
return const_cast<CClientRemoteTree *>(this)->_checkChildren();
}
ChildMap *CClientRemoteTree::_checkChildren()
{
CConnectionLock b(connection);
if (!children && STI_HaveChildren & serverTreeInfo)
{
if (queryLazyFetch())
{
serverTreeInfo &= ~STI_HaveChildren;
createChildMap();
if (serverId)
queryManager().getChildren(*this, connection);
}
}
return children;
}
IPropertyTree *CClientRemoteTree::ownPTree(IPropertyTree *tree)
{
// if taking ownership of an orphaned clientremote tree need to reset it's attributes.
if ((connection.queryStateChanges()) && isEquivalent(tree) && (!QUERYINTERFACE(tree, CClientRemoteTree)->IsShared()))
{
((CClientRemoteTree *)tree)->reset(CPS_Changed, true);
return tree;
}
else
return PTree::ownPTree(tree);
}
IPropertyTree *CClientRemoteTree::create(const char *name, IPTArrayValue *value, ChildMap *children, bool existing)
{
CClientRemoteTree *newTree = new CClientRemoteTree(name, value, children, connection);
if (existing)
{
newTree->setServerId(queryServerId());
setServerId(0);
}
else
newTree->mergeState(CPS_Changed); // flag new element as changed.
return newTree;
}
IPropertyTree *CClientRemoteTree::create(MemoryBuffer &mb)
{
unsigned pos = mb.getPos();
StringAttr name;
mb.read(name);
mb.reset(pos);
CClientRemoteTree *tree = new CClientRemoteTree(connection);
tree->deserializeSelfRT(mb);
return tree;
}
void CClientRemoteTree::createChildMap()
{
children = new MonitoredChildMap(*this);
}
inline bool CClientRemoteTree::queryStateChanges() const
{
return connection.queryStateChanges();
}
ChangeInfo *CClientRemoteTree::queryChanges()
{
return connection.queryChangeInfo(*this);
}
void CClientRemoteTree::setLocal(size32_t size, const void *data, bool _binary)
{
clearState(CPS_PropAppend);
mergeState(CPS_Changed);
PTree::setLocal(size, data, _binary);
}
void CClientRemoteTree::appendLocal(size32_t size, const void *data, bool binary)
{
if (0 == size) return;
if (0 != serverId)
{
if (0 != (CPS_PropAppend & state))
{
PTree::appendLocal(size, data, binary);
return;
}
else if (0 == (CPS_Changed & state))
{
if (value)
{
size32_t sz = value->queryValueSize();
if (!binary && sz) --sz;
if (sz)
{
mergeState(CPS_PropAppend);
registerPropAppend(sz);
PTree::appendLocal(size, data, binary);
return;
}
}
else
{
if (STI_External & serverTreeInfo) // if it has, change will only be fetched on a get call
{
mergeState(CPS_PropAppend);
registerPropAppend(0); // whole value on commit to be sent for external append.
PTree::appendLocal(size, data, binary);
return;
}
}
}
}
mergeState(CPS_Changed);
PTree::appendLocal(size, data, binary);
}
void CClientRemoteTree::addingNewElement(IPropertyTree &child, int pos)
{
((CRemoteTreeBase &)child).setState(CPS_New);
#ifdef ENABLE_INSPOS
if (pos >= 0)
((CRemoteTreeBase &)child).mergeState(CPS_InsPos);
#endif
PTree::addingNewElement(child, pos);
}
void CClientRemoteTree::removingElement(IPropertyTree *tree, unsigned pos)
{
CRemoteTreeBase *child = QUERYINTERFACE(tree, CRemoteTreeBase); assertex(child);
registerDeleted(child->queryName(), pos, child->queryServerId());
PTree::removingElement(tree, pos);
}
void CClientRemoteTree::setAttr(const char *attr, const char *val)
{
PTree::setAttr(attr, val);
mergeState(CPS_AttrChanges);
registerAttrChange(attr);
}
bool CClientRemoteTree::removeAttr(const char *attr)
{
if (PTree::removeAttr(attr))
{
registerDeletedAttr(attr);
return true;
}
else
return false;
}
void CClientRemoteTree::registerRenamed(const char *newName, const char *oldName, unsigned pos, __int64 id)
{
mergeState(CPS_Renames);
if (queryStateChanges())
connection.registerRenamed(*this, newName, oldName, pos, id);
}
void CClientRemoteTree::registerDeleted(const char *name, unsigned position, __int64 id)
{
if (id)
{
mergeState(CPS_Deletions);
if (queryStateChanges())
connection.registerDeleted(*this, name, position, id);
}
}
void CClientRemoteTree::registerAttrChange(const char *attr)
{
mergeState(CPS_AttrChanges);
if (queryStateChanges())
connection.registerAttrChange(*this, attr);
}
void CClientRemoteTree::registerDeletedAttr(const char *attr)
{
mergeState(CPS_AttrDeletions);
if (queryStateChanges())
connection.registerDeletedAttr(*this, attr);
}
void CClientRemoteTree::registerPropAppend(size32_t l)
{
mergeState(CPS_PropAppend);
if (queryStateChanges())
connection.registerPropAppend(*this, l);
}
void CClientRemoteTree::clearChanges()
{
if (0 != (STI_External & serverTreeInfo) && 0 != (CPS_PropAppend & state))
setProp(NULL, (char *)NULL);
connection.clearChanges(*this);
}
// block these ops on other threads during a commit, otherwise can lead to internal sds inconsistency.
void CClientRemoteTree::addProp(const char *xpath, const char *val)
{
CConnectionLock b(connection);
CRemoteTreeBase::addProp(xpath, val);
}
void CClientRemoteTree::setProp(const char *xpath, const char *val)
{
CConnectionLock b(connection);
CRemoteTreeBase::setProp(xpath, val);
}
void CClientRemoteTree::addPropInt64(const char *xpath, __int64 val)
{
CConnectionLock b(connection);
CRemoteTreeBase::addPropInt64(xpath, val);
}
void CClientRemoteTree::setPropInt64(const char *xpath, __int64 val)
{
CConnectionLock b(connection);
CRemoteTreeBase::setPropInt64(xpath, val);
}
void CClientRemoteTree::setPropBin(const char *xpath, size32_t size, const void *data)
{
CConnectionLock b(connection);
CRemoteTreeBase::setPropBin(xpath, size, data);
}
IPropertyTree *CClientRemoteTree::setPropTree(const char *xpath, IPropertyTree *val)
{
CConnectionLock b(connection);
return CRemoteTreeBase::setPropTree(xpath, val);
}
IPropertyTree *CClientRemoteTree::addPropTree(const char *xpath, IPropertyTree *val)
{
CConnectionLock b(connection);
return CRemoteTreeBase::addPropTree(xpath, val);
}
bool CClientRemoteTree::removeProp(const char *xpath)
{
CConnectionLock b(connection);
return CRemoteTreeBase::removeProp(xpath);
}
bool CClientRemoteTree::removeTree(IPropertyTree *child)
{
CConnectionLock b(connection);
return CRemoteTreeBase::removeTree(child);
}
void CClientRemoteTree::checkExt() const
{