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82 lines (72 loc) · 2.04 KB
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/*
* Copyright (c) 2004, 2005, 2006 TADA AB - Taby Sweden
* Distributed under the terms shown in the file COPYRIGHT
* found in the root folder of this project or at
* http://eng.tada.se/osprojects/COPYRIGHT.html
*
* @author Thomas Hallgren
*/
#include "org_postgresql_pljava_internal_JavaWrapper.h"
#include "pljava/type/Type_priv.h"
#include "pljava/type/JavaWrapper.h"
#include "pljava/Backend.h"
#include "pljava/Exception.h"
static jclass s_JavaWrapper_class;
static jfieldID s_JavaWrapper_m_pointer;
MemoryContext JavaMemoryContext;
static jlong _getPointer(jobject managed)
{
if(managed == 0)
{
Exception_throw(ERRCODE_INTERNAL_ERROR, "Null JavaWrapper object");
return 0;
}
return JNI_getLongField(managed, s_JavaWrapper_m_pointer);
}
static Datum _JavaWrapper_coerceObject(Type self, jobject nStruct)
{
Ptr2Long p2l;
p2l.longVal = _getPointer(nStruct);
return PointerGetDatum(p2l.ptrVal);
}
TypeClass JavaWrapperClass_alloc(const char* name)
{
TypeClass self = TypeClass_alloc(name);
self->coerceObject = _JavaWrapper_coerceObject;
return self;
}
extern void JavaWrapper_initialize(void);
void JavaWrapper_initialize(void)
{
JNINativeMethod methods[] =
{
{
"_free",
"(J)V",
Java_org_postgresql_pljava_internal_JavaWrapper__1free
},
{ 0, 0, 0 }
};
s_JavaWrapper_class = JNI_newGlobalRef(PgObject_getJavaClass("org/postgresql/pljava/internal/JavaWrapper"));
PgObject_registerNatives2(s_JavaWrapper_class, methods);
s_JavaWrapper_m_pointer = PgObject_getJavaField(s_JavaWrapper_class, "m_pointer", "J");
JavaMemoryContext = AllocSetContextCreate(TopMemoryContext,
"PL/Java",
ALLOCSET_DEFAULT_MINSIZE,
ALLOCSET_DEFAULT_INITSIZE,
ALLOCSET_DEFAULT_MAXSIZE);
}
/*
* Class: org_postgresql_pljava_internal_JavaWrapper
* Method: _free
* Signature: (J)V
*/
JNIEXPORT void JNICALL
Java_org_postgresql_pljava_internal_JavaWrapper__1free(JNIEnv* env, jobject _this, jlong pointer)
{
BEGIN_NATIVE_NO_ERRCHECK
Ptr2Long p2l;
p2l.longVal = pointer;
pfree(p2l.ptrVal);
END_NATIVE
}