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/*
* Copyright (C) 2013 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.
*/
#include <atomic>
#include "jvmti.h"
// Test infrastructure
#include "jvmti_helper.h"
#include "scoped_local_ref.h"
#include "test_env.h"
namespace art {
namespace Test1951MonitorEnterNoSuspend {
using RawMonitorEnterNoSuspend = jvmtiError(*)(jvmtiEnv* env, jrawMonitorID mon);
template <typename T>
static void Dealloc(T* t) {
jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(t));
}
template <typename T, typename ...Rest>
static void Dealloc(T* t, Rest... rs) {
Dealloc(t);
Dealloc(rs...);
}
static void DeallocParams(jvmtiParamInfo* params, jint n_params) {
for (jint i = 0; i < n_params; i++) {
Dealloc(params[i].name);
}
}
RawMonitorEnterNoSuspend GetNoSuspendFunction(JNIEnv* env) {
// Get the extensions.
jint n_ext = 0;
jvmtiExtensionFunctionInfo* infos = nullptr;
if (JvmtiErrorToException(env, jvmti_env, jvmti_env->GetExtensionFunctions(&n_ext, &infos))) {
return nullptr;
}
RawMonitorEnterNoSuspend result = nullptr;
for (jint i = 0; i < n_ext; i++) {
jvmtiExtensionFunctionInfo* cur_info = &infos[i];
if (strcmp("com.android.art.concurrent.raw_monitor_enter_no_suspend", cur_info->id) == 0) {
result = reinterpret_cast<RawMonitorEnterNoSuspend>(cur_info->func);
}
// Cleanup the cur_info
DeallocParams(cur_info->params, cur_info->param_count);
Dealloc(cur_info->id, cur_info->short_description, cur_info->params, cur_info->errors);
}
// Cleanup the array.
Dealloc(infos);
return result;
}
static std::atomic<bool> started(false);
static std::atomic<bool> resumed(false);
static std::atomic<bool> progress(false);
extern "C" JNIEXPORT void JNICALL Java_art_Test1951_otherThreadStart(JNIEnv* env, jclass) {
jrawMonitorID mon;
if (JvmtiErrorToException(env, jvmti_env, jvmti_env->CreateRawMonitor("test 1951", &mon))) {
return;
}
RawMonitorEnterNoSuspend enter_func = GetNoSuspendFunction(env);
if (enter_func == nullptr) {
return;
}
started = true;
while (!resumed) {}
jvmtiError err = enter_func(jvmti_env, mon);
CHECK_EQ(err, JVMTI_ERROR_NONE);
progress = true;
err = jvmti_env->RawMonitorExit(mon);
CHECK_EQ(err, JVMTI_ERROR_NONE);
}
extern "C" JNIEXPORT void JNICALL Java_art_Test1951_waitForStart(JNIEnv*, jclass) {
while (!started) {}
}
extern "C" JNIEXPORT void JNICALL Java_art_Test1951_otherThreadResume(JNIEnv*, jclass) {
resumed = true;
}
extern "C" JNIEXPORT jboolean JNICALL Java_art_Test1951_otherThreadProgressed(JNIEnv*, jclass) {
return progress;
}
} // namespace Test1951MonitorEnterNoSuspend
} // namespace art