void
Ice::PluginManagerI::loadPlugin(const string& name, const string& pluginSpec, StringSeq& cmdArgs)
{
assert(_communicator);
string entryPoint;
StringSeq args;
if(!pluginSpec.empty())
{
//
// Split the entire property value into arguments. An entry point containing spaces
// must be enclosed in quotes.
//
try
{
args = IceUtilInternal::Options::split(pluginSpec);
}
catch(const IceUtilInternal::BadOptException& ex)
{
PluginInitializationException e(__FILE__, __LINE__);
e.reason = "invalid arguments for plug-in `" + name + "':\n" + ex.reason;
throw e;
}
assert(!args.empty());
//
// Shift the arguments.
//
entryPoint = args[0];
args.erase(args.begin());
//
// Convert command-line options into properties. First we
// convert the options from the plug-in configuration, then
// we convert the options from the application command-line.
//
PropertiesPtr properties = _communicator->getProperties();
args = properties->parseCommandLineOptions(name, args);
cmdArgs = properties->parseCommandLineOptions(name, cmdArgs);
}
PluginFactory factory = 0;
DynamicLibraryPtr library;
//
// Always check the static plugin factory table first, it takes
// precedence over the the entryPoint specified in the plugin
// property value.
//
if(factories)
{
map<string, PluginFactory>::const_iterator p = factories->find(name);
if(p != factories->end())
{
factory = p->second;
}
}
//
// If we didn't find the factory, get the factory using the entry
// point symbol.
//
if(!factory)
{
assert(!entryPoint.empty());
library = new DynamicLibrary();
DynamicLibrary::symbol_type sym = library->loadEntryPoint(entryPoint);
if(sym == 0)
{
ostringstream out;
string msg = library->getErrorMessage();
out << "unable to load entry point `" << entryPoint << "'";
if(!msg.empty())
{
out << ": " + msg;
}
PluginInitializationException ex(__FILE__, __LINE__);
ex.reason = out.str();
throw ex;
}
#ifdef __IBMCPP__
// xlC warns when casting a void* to function pointer
# pragma report(disable, "1540-0216")
#endif
factory = reinterpret_cast<PluginFactory>(sym);
}
//
// Invoke the factory function. No exceptions can be raised
// by the factory function because it's declared extern "C".
//
PluginPtr plugin(factory(_communicator, name, args));
if(!plugin)
{
PluginInitializationException e(__FILE__, __LINE__);
ostringstream out;
out << "failure in entry point `" << entryPoint << "'";
e.reason = out.str();
throw e;
}
PluginInfo info;
info.name = name;
info.plugin = plugin;
_plugins.push_back(info);
if(library)
{
_libraries->add(library);
}
}
Freeze::MapDb::MapDb(const ConnectionIPtr& connection,
const string& dbName,
const string& key,
const string& value,
const KeyCompareBasePtr& keyCompare,
const vector<MapIndexBasePtr>& indices,
bool createDb) :
Db(connection->dbEnv()->getEnv(), 0),
_communicator(connection->communicator()),
_dbName(dbName),
_trace(connection->trace()),
_keyCompare(keyCompare)
{
if(_trace >= 1)
{
Trace out(_communicator->getLogger(), "Freeze.Map");
out << "opening Db \"" << _dbName << "\"";
}
Catalog catalog(connection, _catalogName);
TransactionPtr tx = connection->currentTransaction();
bool ownTx = (tx == 0);
for(;;)
{
try
{
if(ownTx)
{
tx = 0;
tx = connection->beginTransaction();
}
Catalog::iterator ci = catalog.find(_dbName);
if(ci != catalog.end())
{
if(ci->second.evictor)
{
throw DatabaseException(__FILE__, __LINE__, _dbName + " is an evictor database");
}
_key = ci->second.key;
_value = ci->second.value;
checkTypes(key, value);
}
else
{
_key = key;
_value = value;
}
set_app_private(this);
if(_keyCompare->compareEnabled())
{
set_bt_compare(&customCompare);
}
PropertiesPtr properties = _communicator->getProperties();
string propPrefix = "Freeze.Map." + _dbName + ".";
int btreeMinKey = properties->getPropertyAsInt(propPrefix + "BtreeMinKey");
if(btreeMinKey > 2)
{
if(_trace >= 1)
{
Trace out(_communicator->getLogger(), "Freeze.Map");
out << "Setting \"" << _dbName << "\"'s btree minkey to " << btreeMinKey;
}
set_bt_minkey(btreeMinKey);
}
bool checksum = properties->getPropertyAsInt(propPrefix + "Checksum") > 0;
if(checksum)
{
if(_trace >= 1)
{
Trace out(_communicator->getLogger(), "Freeze.Map");
out << "Turning checksum on for \"" << _dbName << "\"";
}
set_flags(DB_CHKSUM);
}
int pageSize = properties->getPropertyAsInt(propPrefix + "PageSize");
if(pageSize > 0)
{
if(_trace >= 1)
{
Trace out(_communicator->getLogger(), "Freeze.Map");
out << "Setting \"" << _dbName << "\"'s pagesize to " << pageSize;
}
set_pagesize(pageSize);
}
DbTxn* txn = getTxn(tx);
u_int32_t flags = DB_THREAD;
if(createDb)
{
flags |= DB_CREATE;
}
open(txn, Ice::nativeToUTF8(_communicator, _dbName).c_str(), 0, DB_BTREE, flags, FREEZE_DB_MODE);
StringSeq oldIndices;
StringSeq newIndices;
size_t oldSize = 0;
CatalogIndexList catalogIndexList(connection, _catalogIndexListName);
if(createDb)
{
CatalogIndexList::iterator cil = catalogIndexList.find(_dbName);
if(cil != catalogIndexList.end())
{
oldIndices = cil->second;
oldSize = oldIndices.size();
}
}
for(vector<MapIndexBasePtr>::const_iterator p = indices.begin();
p != indices.end(); ++p)
{
const MapIndexBasePtr& indexBase = *p;
assert(indexBase->_impl == 0);
assert(indexBase->_communicator == 0);
indexBase->_communicator = connection->communicator();
auto_ptr<MapIndexI> indexI;
try
{
indexI.reset(new MapIndexI(connection, *this, txn, createDb, indexBase));
}
catch(const DbDeadlockException&)
{
throw;
}
catch(const DbException& dx)
{
string message = "Error while opening index \"" + _dbName +
"." + indexBase->name() + "\": " + dx.what();
throw DatabaseException(__FILE__, __LINE__, message);
}
#ifndef NDEBUG
bool inserted =
#endif
_indices.insert(IndexMap::value_type(indexBase->name(), indexI.get())).second;
assert(inserted);
indexBase->_impl = indexI.release();
if(createDb)
{
newIndices.push_back(indexBase->name());
oldIndices.erase(std::remove(oldIndices.begin(), oldIndices.end(), indexBase->name()), oldIndices.end());
}
}
if(ci == catalog.end())
{
CatalogData catalogData;
catalogData.evictor = false;
catalogData.key = key;
catalogData.value = value;
catalog.put(Catalog::value_type(_dbName, catalogData));
}
if(createDb)
{
//
// Remove old indices and write the new ones
//
bool indexRemoved = false;
for(StringSeq::const_iterator q = oldIndices.begin(); q != oldIndices.end(); ++q)
{
const string& index = *q;
if(_trace >= 1)
{
Trace out(_communicator->getLogger(), "Freeze.Map");
out << "removing old index \"" << index << "\" on Db \"" << _dbName << "\"";
}
try
{
connection->removeMapIndex(_dbName, *q);
indexRemoved = true;
}
catch(const IndexNotFoundException&)
{
// Ignored
if(_trace >= 1)
{
Trace out(_communicator->getLogger(), "Freeze.Map");
out << "index \"" << index << "\" on Db \"" << _dbName << "\" does not exist";
}
}
}
if(indexRemoved || oldSize != newIndices.size())
{
if(newIndices.size() == 0)
{
catalogIndexList.erase(_dbName);
if(_trace >= 1)
{
Trace out(_communicator->getLogger(), "Freeze.Map");
out << "Removed catalogIndexList entry for Db \"" << _dbName << "\"";
}
}
else
{
catalogIndexList.put(CatalogIndexList::value_type(_dbName, newIndices));
if(_trace >= 1)
{
Trace out(_communicator->getLogger(), "Freeze.Map");
out << "Updated catalogIndexList entry for Db \"" << _dbName << "\"";
}
}
}
}
if(ownTx)
{
tx->commit();
}
break; // for(;;)
}
catch(const DbDeadlockException& dx)
{
if(ownTx)
{
if(connection->deadlockWarning())
{
Warning out(connection->communicator()->getLogger());
out << "Deadlock in Freeze::MapDb::MapDb on Map \""
<< _dbName << "\"; retrying ...";
}
//
// Ignored, try again
//
}
else
{
throw DeadlockException(__FILE__, __LINE__, dx.what(), tx);
}
}
catch(const DbException& dx)
{
if(ownTx)
{
try
{
tx->rollback();
}
catch(...)
{
}
}
string message = "Error while opening Db \"" + _dbName +
"\": " + dx.what();
throw DatabaseException(__FILE__, __LINE__, message);
}
catch(...)
{
if(ownTx && tx != 0)
{
try
{
tx->rollback();
}
catch(...)
{
}
}
throw;
}
}
}