93 lines
3.8 KiB
C++
93 lines
3.8 KiB
C++
/*
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* Copyright (c) 2005, 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#include <jni.h>
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#include <stdio.h>
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extern "C" {
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JNIEXPORT void JNICALL
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Java_gc_gctests_nativeGC05_nativeGC05_kickOffRefillers
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(JNIEnv *env, jobject obj, jobject matrix, jobject stack) {
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jclass matrixClass, stackClass, pairClass = nullptr;
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jmethodID stack_pop_mid, stack_empty_mid, matrix_repopulate_mid, pair_geti_mid = nullptr, pair_getj_mid = nullptr;
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jobject pair;
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jint i, j;
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jboolean b;
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/* Get class objects associated with the objects passed in */
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matrixClass = env->GetObjectClass(matrix);
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stackClass = env->GetObjectClass(stack);
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/* GetMethodID's for the pop() and Repopulate() methods */
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stack_pop_mid = env->GetMethodID(stackClass, "pop", "()Ljava/lang/Object;");
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if (stack_pop_mid == nullptr) {
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printf("could not get a methodID for Stack::pop()\n");
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return;
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}
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stack_empty_mid = env->GetMethodID(stackClass, "empty", "()Z");
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if (stack_empty_mid == nullptr) {
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printf("could not get a methodID for Stack::empty()\n");
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return;
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}
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matrix_repopulate_mid = env->GetMethodID(matrixClass, "repopulate", "(II)V");
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if (matrix_repopulate_mid == nullptr) {
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printf("could not get a methodID for Matrix::repopulate(int, int)\n");
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return;
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}
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/** b = stack.empty(); */
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b = env->CallBooleanMethod(stack, stack_empty_mid);
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while (b == JNI_FALSE) {
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/** pair = stack.pop() */
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pair = env->CallObjectMethod(stack, stack_pop_mid);
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if (pairClass == nullptr) {
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pairClass = env->GetObjectClass(pair);
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pair_geti_mid = env->GetMethodID(pairClass, "getI", "()I");
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if (pair_geti_mid == nullptr) {
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printf("could not get a methodID for IndexPair::getI()\n");
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return;
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}
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pair_getj_mid = env->GetMethodID(pairClass, "getJ", "()I");
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if (pair_getj_mid == nullptr) {
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printf("could not get a methodID for IndexPair::getJ()\n");
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return;
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}
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}
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/** i = pair.getI(); */
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i = env->CallIntMethod(pair, pair_geti_mid);
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/** j = pair.getJ(); */
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j = env->CallIntMethod(pair, pair_getj_mid);
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/* matrix.repopulate(i, j); */
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env->CallVoidMethod(matrix, matrix_repopulate_mid, i, j);
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/** b = stack.empty(); */
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b = env->CallBooleanMethod(stack, stack_empty_mid);
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}
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}
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}
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