Merge "Add support for converting java hint sessions to native hint sessions" into main

Author: AndroidMatt1

include/android/performance_hint.h

@@ -49,6 +49,7 @@
 #define ANDROID_NATIVE_PERFORMANCE_HINT_H
 
 #include <sys/cdefs.h>
+#include <jni.h>
 
 /******************************************************************
  *
@@ -202,6 +203,9 @@ int APerformanceHint_reportActualWorkDuration(
  * Release the performance hint manager pointer acquired via
  * {@link APerformanceHint_createSession}.
  *
+ * This cannot be used to close a Java PerformanceHintManager.Session, as its
+ * lifecycle is tied to the object in the SDK.
+ *
  * @param session The performance hint session instance to release.
  */
 void APerformanceHint_closeSession(
@@ -370,6 +374,21 @@ void AWorkDuration_setActualCpuDurationNanos(AWorkDuration* _Nonnull aWorkDurati
 void AWorkDuration_setActualGpuDurationNanos(AWorkDuration* _Nonnull aWorkDuration,
         int64_t actualGpuDurationNanos) __INTRODUCED_IN(__ANDROID_API_V__);
 
+/**
+ * Return the APerformanceHintSession wrapped by a Java PerformanceHintManager.Session object.
+ *
+ * The Java session maintains ownership over the wrapped native session, so it cannot be
+ * closed using {@link APerformanceHint_closeSession}.
+ *
+ * @param env The Java environment where the PerformanceHintManager.Session lives.
+ * @param sessionObj The Java Session to unwrap.
+ *
+ * @return A pointer to the APerformanceHintManager that backs the Java Session.
+ */
+APerformanceHintSession* _Nonnull APerformanceHint_borrowSessionFromJava(
+        JNIEnv* _Nonnull env, jobject _Nonnull sessionObj) __INTRODUCED_IN(36);
+
+
 __END_DECLS
 
 #endif // ANDROID_NATIVE_PERFORMANCE_HINT_H

include/private/performance_hint_private.h

@@ -109,6 +109,18 @@ APerformanceHintSession* APerformanceHint_createSessionInternal(APerformanceHint
                                         const int32_t* threadIds, size_t size,
                                         int64_t initialTargetWorkDurationNanos, SessionTag tag);
 
+/**
+ * Creates a session from the Java SDK implementation
+ */
+APerformanceHintSession* APerformanceHint_createSessionFromJava(APerformanceHintManager* manager,
+                                        const int32_t* threadIds, size_t size,
+                                        int64_t initialTargetWorkDurationNanos);
+
+/**
+ * Special method for Java SDK implementation to kill sessions
+ */
+void APerformanceHint_closeSessionFromJava(APerformanceHintSession* session);
+
 /**
  * Forces FMQ to be enabled or disabled, for testing only.
  */