test/hotspot/jtreg/gc/g1/libTestPeriodicCollectionJNI.c

rev 53920 : imported patch 8218880-g1-crashes-periodic-gc-gclocker
rev 53921 : [mq]: 8218880-shade-review

*** 25,45 ****
   * Native support for TestPeriodicCollectionJNI test.
   */
  
  #include "jni.h"
  
  static volatile int release_critical = 0;
  
  JNIEXPORT jboolean JNICALL
  Java_gc_g1_TestPeriodicCollectionJNI_blockInNative(JNIEnv* env, jobject obj, jintArray dummy) {
      void* native_array = (*env)->GetPrimitiveArrayCritical(env, dummy, 0);
  
      if (native_array == NULL) {
          return JNI_FALSE;
      }
  
!     while (!release_critical) /* empty */;
  
      (*env)->ReleasePrimitiveArrayCritical(env, dummy, native_array, 0);
  
      return JNI_TRUE;
  }
--- 25,61 ----
   * Native support for TestPeriodicCollectionJNI test.
   */
  
  #include "jni.h"
  
+ #ifdef WINDOWS
+ #include <windows.h>
+ #else
+ #include <unistd.h>
+ #endif
+ 
+ #ifdef __cplusplus
+ extern "C" {
+ #endif
+ 
  static volatile int release_critical = 0;
  
  JNIEXPORT jboolean JNICALL
  Java_gc_g1_TestPeriodicCollectionJNI_blockInNative(JNIEnv* env, jobject obj, jintArray dummy) {
      void* native_array = (*env)->GetPrimitiveArrayCritical(env, dummy, 0);
  
      if (native_array == NULL) {
          return JNI_FALSE;
      }
  
!     while (!release_critical) {
! #ifdef WINDOWS
!         Sleep(1);
! #else
!         usleep(1000);
! #endif
!     }
  
      (*env)->ReleasePrimitiveArrayCritical(env, dummy, native_array, 0);
  
      return JNI_TRUE;
  }
*** 47,51 ****
--- 63,71 ----
  JNIEXPORT void JNICALL Java_gc_g1_TestPeriodicCollectionJNI_unblock(JNIEnv *env, jobject obj)
  {
      release_critical = 1;
  }
  
+ #ifdef __cplusplus
+ }
+ #endif
+