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test/hotspot/jtreg/vmTestbase/nsk/share/gc/lock/jniref/JNIGlobalRefLocker.cpp

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rev 52828 : 8213501: Deploy ExceptionJniWrapper for a few tests
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  21  * questions.
  22  */
  23 
  24 #include <jni.h>
  25 #include <stdio.h>
  26 #include <time.h>
  27 #include "ExceptionCheckingJniEnv.hpp"
  28 #include "jni_tools.h"
  29 
  30 extern "C" {
  31 
  32 static jfieldID objFieldId = NULL;
  33 
  34 /*
  35  * Class:     nsk_share_gc_lock_jniref_JNIGlobalRefLocker
  36  * Method:    criticalNative
  37  * Signature: (JJ)V
  38  */
  39 JNIEXPORT void JNICALL Java_nsk_share_gc_lock_jniref_JNIGlobalRefLocker_criticalNative
  40   (JNIEnv *jni_env, jobject o, jlong enterTime, jlong sleepTime) {
  41         ExceptionCheckingJniEnvPtr env(jni_env);
  42 
  43         jobject obj;
  44         jobject gref;
  45         time_t start_time, current_time;
  46 
  47         if (objFieldId == NULL) {
  48                 jclass klass = env->GetObjectClass(o);
  49                 objFieldId = env->GetFieldID(klass, "obj", "Ljava/lang/Object;");
  50         }
  51         obj = env->GetObjectField(o, objFieldId);
  52         env->SetObjectField(o, objFieldId, NULL);
  53         start_time = time(NULL);
  54         enterTime /= 1000;
  55         current_time = 0;
  56         while (current_time - start_time < enterTime) {
  57                 gref = env->NewGlobalRef(obj);
  58                 mssleep((long) sleepTime);
  59                 env->DeleteGlobalRef(gref);
  60                 mssleep((long) sleepTime);
  61                 current_time = time(NULL);
  62         }
  63         env->SetObjectField(o, objFieldId, obj);
  64 }
  65 
  66 }


  21  * questions.
  22  */
  23 
  24 #include <jni.h>
  25 #include <stdio.h>
  26 #include <time.h>
  27 #include "ExceptionCheckingJniEnv.hpp"
  28 #include "jni_tools.h"
  29 
  30 extern "C" {
  31 
  32 static jfieldID objFieldId = NULL;
  33 
  34 /*
  35  * Class:     nsk_share_gc_lock_jniref_JNIGlobalRefLocker
  36  * Method:    criticalNative
  37  * Signature: (JJ)V
  38  */
  39 JNIEXPORT void JNICALL Java_nsk_share_gc_lock_jniref_JNIGlobalRefLocker_criticalNative
  40   (JNIEnv *jni_env, jobject o, jlong enterTime, jlong sleepTime) {
  41         ExceptionCheckingJniEnvPtr jni(jni_env);
  42 
  43         jobject obj;
  44         jobject gref;
  45         time_t start_time, current_time;
  46 
  47         if (objFieldId == NULL) {
  48                 jclass klass = jni->GetObjectClass(o, TRACE_JNI_CALL);
  49                 objFieldId = jni->GetFieldID(klass, "obj", "Ljava/lang/Object;", TRACE_JNI_CALL);
  50         }
  51         obj = jni->GetObjectField(o, objFieldId, TRACE_JNI_CALL);
  52         jni->SetObjectField(o, objFieldId, NULL, TRACE_JNI_CALL);
  53         start_time = time(NULL);
  54         enterTime /= 1000;
  55         current_time = 0;
  56         while (current_time - start_time < enterTime) {
  57                 gref = jni->NewGlobalRef(obj, TRACE_JNI_CALL);
  58                 mssleep((long) sleepTime);
  59                 jni->DeleteGlobalRef(gref, TRACE_JNI_CALL);
  60                 mssleep((long) sleepTime);
  61                 current_time = time(NULL);
  62         }
  63         jni->SetObjectField(o, objFieldId, obj, TRACE_JNI_CALL);
  64 }
  65 
  66 }
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