blob: 3911d1e38b685b18e57eec362f0e94c286679777 [file] [log] [blame]
// Copyright 2019 The Bazel Authors. All rights reserved.
//
// 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.
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#include <assert.h>
#include <atomic>
#include "src/main/native/jni.h"
// Keep track of our pushes and pops of sleep state.
static std::atomic_int g_sleep_stack{0};
/*
* Class: com_google_devtools_build_lib_platform_SleepPreventionModule_SleepPrevention
* Method: pushDisableSleep
* Signature: ()I
*/
extern "C" JNIEXPORT jint JNICALL
Java_com_google_devtools_build_lib_platform_SleepPreventionModule_00024SleepPrevention_pushDisableSleep(
JNIEnv *, jclass) {
if (g_sleep_stack++ == 0) {
SetThreadExecutionState(
ES_CONTINUOUS | ES_SYSTEM_REQUIRED | ES_AWAYMODE_REQUIRED);
}
return 0;
}
/*
* Class: com.google.devtools.build.lib.platform.SleepPreventionModule.SleepPrevention
* Method: popDisableSleep
* Signature: ()I
*/
extern "C" JNIEXPORT jint JNICALL
Java_com_google_devtools_build_lib_platform_SleepPreventionModule_00024SleepPrevention_popDisableSleep(
JNIEnv *, jclass) {
int stack_value = --g_sleep_stack;
assert(stack_value >= 0);
if (stack_value == 0) {
SetThreadExecutionState(ES_CONTINUOUS);
}
return 0;
}