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Code Issues Releases Activity

SERVER-2983: add v8string caching for v8 engine

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This commit is contained in:
agirbal 2011-04-24 12:34:21 -07:00
parent 1e6220e3af
commit b6913e3417
2 changed files with 47 additions and 25 deletions
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62
scripting/engine_v8.cpp
View File

@ -72,22 +72,22 @@ namespace mongo {
_global = Persistent< v8::Object >::New( _context->Global() );
_this = Persistent< v8::Object >::New( v8::Object::New() );
V8STR_CONN = Persistent<v8::String>::New(v8::String::New( "_conn" ));
V8STR_ID = Persistent<v8::String>::New(v8::String::New( "_id" ));
V8STR_LENGTH = Persistent<v8::String>::New(v8::String::New( "length" ));
V8STR_ISOBJECTID = Persistent<v8::String>::New(v8::String::New( "isObjectId" ));
V8STR_RETURN = Persistent<v8::String>::New(v8::String::New( "return" ));
V8STR_ARGS = Persistent<v8::String>::New(v8::String::New( "args" ));
V8STR_T = Persistent<v8::String>::New(v8::String::New( "t" ));
V8STR_I = Persistent<v8::String>::New(v8::String::New( "i" ));
V8STR_EMPTY = Persistent<v8::String>::New(v8::String::New( "" ));
V8STR_MINKEY = Persistent<v8::String>::New(v8::String::New( "$MinKey" ));
V8STR_MAXKEY = Persistent<v8::String>::New(v8::String::New( "$MaxKey" ));
V8STR_NUMBERLONG = Persistent<v8::String>::New(v8::String::New( "__NumberLong" ));
V8STR_DBPTR = Persistent<v8::String>::New(v8::String::New( "__DBPointer" ));
V8STR_BINDATA = Persistent<v8::String>::New(v8::String::New( "__BinData" ));
V8STR_NATIVE_FUNC = Persistent<v8::String>::New(v8::String::New( "_native_function" ));
V8STR_V8_FUNC = Persistent<v8::String>::New(v8::String::New( "_v8_function" ));
V8STR_CONN = getV8Str( "_conn" );
V8STR_ID = getV8Str( "_id" );
V8STR_LENGTH = getV8Str( "length" );
V8STR_ISOBJECTID = getV8Str( "isObjectId" );
V8STR_RETURN = getV8Str( "return" );
V8STR_ARGS = getV8Str( "args" );
V8STR_T = getV8Str( "t" );
V8STR_I = getV8Str( "i" );
V8STR_EMPTY = getV8Str( "" );
V8STR_MINKEY = getV8Str( "$MinKey" );
V8STR_MAXKEY = getV8Str( "$MaxKey" );
V8STR_NUMBERLONG = getV8Str( "__NumberLong" );
V8STR_DBPTR = getV8Str( "__DBPointer" );
V8STR_BINDATA = getV8Str( "__BinData" );
V8STR_NATIVE_FUNC = getV8Str( "_native_function" );
V8STR_V8_FUNC = getV8Str( "_v8_function" );
injectV8Function("print", Print);
injectV8Function("version", Version);
@ -110,6 +110,12 @@ namespace mongo {
_funcs.clear();
_global.Dispose();
_context.Dispose();
std::map <string, v8::Persistent <v8::String> >::iterator it = _strCache.begin();
std::map <string, v8::Persistent <v8::String> >::iterator end = _strCache.end();
while (it != end) {
it->second.Dispose();
++it;
}
}
/**
@ -513,26 +519,24 @@ namespace mongo {
obj->Set( v8::String::New( field ), ft->GetFunction() );
}
Handle<v8::Function> V8Scope::injectV8Function( const char *field, v8Function func ) {
return injectV8Function(field, func, _global);
void V8Scope::injectV8Function( const char *field, v8Function func ) {
injectV8Function(field, func, _global);
}
Handle<v8::Function> V8Scope::injectV8Function( const char *field, v8Function func, Handle<v8::Object>& obj ) {
void V8Scope::injectV8Function( const char *field, v8Function func, Handle<v8::Object>& obj ) {
V8_SIMPLE_HEADER
Handle< FunctionTemplate > ft = createV8Function(func);
Handle<v8::Function> f = ft->GetFunction();
obj->Set( v8::String::New( field ), f );
return f;
}
Handle<v8::Function> V8Scope::injectV8Function( const char *field, v8Function func, Handle<v8::Template>& t ) {
void V8Scope::injectV8Function( const char *field, v8Function func, Handle<v8::Template>& t ) {
V8_SIMPLE_HEADER
Handle< FunctionTemplate > ft = createV8Function(func);
Handle<v8::Function> f = ft->GetFunction();
t->Set( v8::String::New( field ), f );
return f;
}
Handle<FunctionTemplate> V8Scope::createV8Function( v8Function func ) {
@ -1161,4 +1165,18 @@ namespace mongo {
return v8::Undefined();
}
/**
* Gets a V8 strings from the scope's cache, creating one if needed
*/
v8::Persistent<v8::String> V8Scope::getV8Str(string str) {
Persistent<v8::String> ptr = _strCache[str];
if (ptr.IsEmpty()) {
ptr = Persistent<v8::String>::New(v8::String::New(str.c_str()));
_strCache[str] = ptr;
// cout << "Adding str " + str << endl;
}
// cout << "Returning str " + str << endl;
return ptr;
}
} // namespace mongo

10
scripting/engine_v8.h
View File

@ -97,9 +97,9 @@ namespace mongo {
virtual void injectNative( const char *field, NativeFunction func );
void injectNative( const char *field, NativeFunction func, Handle<v8::Object>& obj );
Handle<v8::Function> injectV8Function( const char *field, v8Function func );
Handle<v8::Function> injectV8Function( const char *field, v8Function func, Handle<v8::Object>& obj );
Handle<v8::Function> injectV8Function( const char *field, v8Function func, Handle<v8::Template>& t );
void injectV8Function( const char *field, v8Function func );
void injectV8Function( const char *field, v8Function func, Handle<v8::Object>& obj );
void injectV8Function( const char *field, v8Function func, Handle<v8::Template>& t );
Handle<v8::FunctionTemplate> createV8Function( v8Function func );
void gc();
@ -117,6 +117,8 @@ namespace mongo {
v8::Function * getObjectIdCons();
Local< v8::Value > newId( const OID &id );
v8::Persistent<v8::String> getV8Str(string str);
Persistent<v8::String> V8STR_CONN;
Persistent<v8::String> V8STR_ID;
Persistent<v8::String> V8STR_LENGTH;
@ -159,6 +161,8 @@ namespace mongo {
enum ConnectState { NOT , LOCAL , EXTERNAL };
ConnectState _connectState;
std::map <string, v8::Persistent <v8::String> > _strCache;
};
class V8ScriptEngine : public ScriptEngine {