10b149f18f
This CL implements a simple force_suspend(). This function takes a timeoutMs argument that is currently ignored. It also uses a two-stage init process that spawns the suspend_thread when autosuspend is in use. Follow-up CLs will: - Implement file locking to prevent multiple libsuspend instances from starting multiple suspend threads in the system. - Fully implement timout for force_suspend. - Integrate force_suspend with suspend_thred. Bug: 70669809 Test: autosuspend still works Change-Id: I6b2c72d0c61d1bec6db0f0b28481ffe0e20ec615
115 lines
2.3 KiB
C
115 lines
2.3 KiB
C
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "libsuspend"
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#include <stdbool.h>
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#include <log/log.h>
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#include <suspend/autosuspend.h>
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#include "autosuspend_ops.h"
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static struct autosuspend_ops* autosuspend_ops = NULL;
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static bool autosuspend_enabled;
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static int autosuspend_init(void) {
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if (autosuspend_ops != NULL) {
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return 0;
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}
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autosuspend_ops = autosuspend_wakeup_count_init();
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if (autosuspend_ops == NULL) {
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ALOGE("failed to initialize autosuspend");
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return -1;
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}
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ALOGV("autosuspend initialized");
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return 0;
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}
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int autosuspend_enable(void) {
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int ret;
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ret = autosuspend_init();
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if (ret) {
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return ret;
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}
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ALOGV("autosuspend_enable");
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if (autosuspend_enabled) {
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return 0;
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}
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ret = autosuspend_ops->enable();
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if (ret) {
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return ret;
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}
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autosuspend_enabled = true;
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return 0;
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}
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int autosuspend_disable(void) {
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int ret;
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ret = autosuspend_init();
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if (ret) {
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return ret;
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}
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ALOGV("autosuspend_disable");
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if (!autosuspend_enabled) {
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return 0;
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}
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ret = autosuspend_ops->disable();
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if (ret) {
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return ret;
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}
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autosuspend_enabled = false;
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return 0;
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}
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int autosuspend_force_suspend(int timeout_ms) {
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int ret;
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ret = autosuspend_init();
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if (ret) {
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return ret;
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}
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ALOGV("autosuspend_force_suspend");
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return autosuspend_ops->force_suspend(timeout_ms);
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}
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void autosuspend_set_wakeup_callback(void (*func)(bool success)) {
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int ret;
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ret = autosuspend_init();
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if (ret) {
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return;
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}
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ALOGV("set_wakeup_callback");
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autosuspend_ops->set_wakeup_callback(func);
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}
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