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Make more use of LocalRefGuard in Java

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This commit is contained in:
William S Fulton 2014-09-27 13:56:11 +01:00
commit 2f5bf397ae
1 changed files with 17 additions and 13 deletions
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30
Lib/java/director.swg
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@ -100,6 +100,22 @@ namespace Swig {
bool weak_global_;
};
/* Local JNI reference deleter */
class LocalRefGuard {
JNIEnv *jenv_;
jobject jobj_;
// non-copyable
LocalRefGuard(const LocalRefGuard &);
LocalRefGuard &operator=(const LocalRefGuard &);
public:
LocalRefGuard(JNIEnv *jenv, jobject jobj): jenv_(jenv), jobj_(jobj) {}
~LocalRefGuard() {
if (jobj_)
jenv_->DeleteLocalRef(jobj_);
}
};
/* director base class */
class Director {
/* pointer to Java virtual machine */
@ -152,6 +168,7 @@ namespace Swig {
JNIEnvWrapper jnienv(this) ;
JNIEnv *jenv = jnienv.getJNIEnv() ;
jobject jobj = swig_self_.get(jenv);
LocalRefGuard ref_deleter(jenv, jobj);
#if defined(DEBUG_DIRECTOR_OWNED)
std::cout << "Swig::Director::disconnect_director_self(" << jobj << ")" << std::endl;
#endif
@ -164,7 +181,6 @@ namespace Swig {
jenv->CallVoidMethod(jobj, disconn_meth);
}
}
jenv->DeleteLocalRef(jobj);
}
public:
@ -379,17 +395,5 @@ namespace Swig {
}
return matches;
}
class LocalRefGuard {
JNIEnv* jenv_;
jobject jobj_;
// non-copyable
LocalRefGuard(const LocalRefGuard &);
LocalRefGuard &operator=(const LocalRefGuard &);
public:
LocalRefGuard(JNIEnv* jenv, jobject jobj): jenv_(jenv), jobj_(jobj) {}
~LocalRefGuard() { if (jobj_) jenv_->DeleteLocalRef(jobj_); }
};
}