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/*
* Copyright (C) 2022 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "SyncFence"
#include <nativehelper/JNIHelp.h>
#include <ui/Fence.h>
#include "core_jni_helpers.h"
#include "jni.h"
using namespace android;
template <typename T>
jlong toJlong(T* ptr) {
return static_cast<jlong>(reinterpret_cast<uintptr_t>(ptr));
}
template <typename T>
T* fromJlong(jlong jPtr) {
return reinterpret_cast<T*>(static_cast<uintptr_t>(jPtr));
}
static void destroyFence(Fence* fence) {
fence->decStrong(0);
}
static jlong SyncFence_getDestructor(JNIEnv*, jobject) {
return toJlong(&destroyFence);
}
static jlong SyncFence_create(JNIEnv*, jobject, int fd) {
Fence* fence = new Fence(fd);
fence->incStrong(0);
return toJlong(fence);
}
static jboolean SyncFence_isValid(JNIEnv*, jobject, jlong jPtr) {
return fromJlong<Fence>(jPtr)->isValid();
}
static jint SyncFence_getFd(JNIEnv*, jobject, jlong jPtr) {
return fromJlong<Fence>(jPtr)->get();
}
static jboolean SyncFence_wait(JNIEnv* env, jobject, jlong jPtr, jlong timeoutNanos) {
Fence* fence = fromJlong<Fence>(jPtr);
int err = fence->wait(timeoutNanos);
return err == OK;
}
static jlong SyncFence_getSignalTime(JNIEnv* env, jobject, jlong jPtr) {
return fromJlong<Fence>(jPtr)->getSignalTime();
}
// ----------------------------------------------------------------------------
// JNI Glue
// ----------------------------------------------------------------------------
const char* const kClassPathName = "android/hardware/SyncFence";
// clang-format off
static const JNINativeMethod gMethods[] = {
{ "nGetDestructor", "()J", (void*) SyncFence_getDestructor },
{ "nCreate", "(I)J", (void*) SyncFence_create },
{ "nIsValid", "(J)Z", (void*) SyncFence_isValid },
{ "nGetFd", "(J)I", (void*) SyncFence_getFd },
{ "nWait", "(JJ)Z", (void*) SyncFence_wait },
{ "nGetSignalTime", "(J)J", (void*) SyncFence_getSignalTime },
};
// clang-format on
int register_android_hardware_SyncFence(JNIEnv* env) {
int err = RegisterMethodsOrDie(env, kClassPathName, gMethods, NELEM(gMethods));
return err;
}
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