Can someone skilled at C++ tell me what I did wrong here?
by Vince Gee · in Torque 3D Professional · 02/16/2012 (9:59 pm) · 3 replies
I'm getting a memory leak, and for the life of me I can't seem to fix it.
The only thing I know is that argc and argv do get destroyed, after the call. But for the life of me I cannot figure out how to make this work.
The only thing I know is that argc and argv do get destroyed, after the call. But for the life of me I cannot figure out how to make this work.
extern "C" __declspec(dllexport) void ParentCall(
char * sim_object,
char* function,
S32 argc,
const char** argv,
char* ret)
{
SimObject* object = Sim::findObject(sim_object);
if (!object)
return;
char* _function = (char *)malloc(256);
dSprintf(_function,256,"%s",function);
const char* ccfunction = StringTable->insert(_function);
char **mArgv;
S32 mArgc = argc;
U32 totalSize = 0;
S32 i;
for(i = 0; i < argc; i++)
totalSize += dStrlen(argv[i]) + 1;
totalSize += sizeof(char *) * argc;
mArgv = (char **) dMalloc(totalSize);
char *argBase = (char *) &mArgv[argc];
for(i = 0; i < argc; i++)
{
mArgv[i] = argBase;
dStrcpy(mArgv[i], argv[i]);
argBase += dStrlen(argv[i]) + 1;
}
Namespace* ns= object->getNamespace()->getParent();
if (!ns)
return;
ns->lookup(ccfunction)->execute( mArgc,(const char **)mArgv,&gEvalState);
//ns->lookup(ccFunction)->
//dSprintf(ret,1024,"%s", ns->lookup(ccfunction)->execute( argc,argv,&gEvalState));
}
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#2
Do you see anything wrong with
02/17/2012 (7:22 am)
@Kerry,Do you see anything wrong with
extern "C" __declspec(dllexport) void ParentCall(
char* sim_object,
char* function,
char* ret,
S32 argc,
char ** _argv
)
{
SimObject* object = Sim::findObject(sim_object);
if (!object)
return;
Namespace* ns= object->getNamespace()->getParent();
if (!ns)
return;
std::vector<const char*> arguments;
for (int i =0;i<argc;i++)
{
arguments.push_back(_argv[i]);
}
const char** argv = &arguments[0];
StringTableEntry callMethod = StringTable->insert( function );
const char* resultstring = ns->lookup(callMethod)->execute( argc,argv, &gEvalState);
if (dStrlen(resultstring)>0)
dSprintf(ret,1024,"%s",resultstring);
else
dSprintf(ret,1024,"%s","");
} 
#3
02/17/2012 (9:45 pm)
Not offhand. Are you still getting a memory leak with this function? 
Kerry Enfinger
Altered Reality Software
Check out:
en.wikipedia.org/wiki/C_dynamic_memory_allocation