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SF 3435567

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Possibility to pass a NULL Dispatch pointer
Fix a memory leak (detected with Glowcode) in Variant.cpp/zeroVariant function
Variant.toString improvement to handle NULL cases
Adds the error code to the message when "an unknown COM error has occurred"
Added debug info to EventProxy advise registration failure message.
This commit is contained in:
clay_shooter
2011-12-11 16:57:28 +00:00
parent e5652e3b75
commit 1e69bb9acb
6 changed files with 61 additions and 5 deletions
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12
jni/Variant.cpp
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@@ -95,6 +95,12 @@ JNIEXPORT void JNICALL Java_com_jacob_com_Variant_init
*/
void zeroVariant(JNIEnv *env, jobject _this)
{
// sf 3435567 Fix a memory leak (detected with Glowcode) in Variant.cpp/zeroVariant function
// does this code conflict with the function/method documentation now?
// note that a related fix was proposed in SF 1689061 in EventProxy.cpp but never accepted
VARIANT *v = extractVariant(env, _this);
delete v;
jclass clazz = env->GetObjectClass(_this);
jfieldID jf = env->GetFieldID(clazz, VARIANT_FLD, "I");
env->SetIntField(_this, jf, (unsigned int)0);
@@ -632,12 +638,14 @@ JNIEXPORT void JNICALL Java_com_jacob_com_Variant_putVariantDispatch
{
VARIANT *v = extractVariant(env, _this);
IDispatch *disp = extractDispatch(env, _that);
if (disp && v) {
if (v) {
VariantClear(v); // whatever was there before
V_VT(v) = VT_DISPATCH;
V_DISPATCH(v) = disp;
// I am handing the pointer to COM
disp->AddRef();
// SF 3435567 support null dispatch pointer
if( disp )
disp->AddRef();
} else ThrowComFail(env, "putObject failed", -1);
}