1f9e4847ce
This library will need to mirror AOSP for any changes to installing packages. The library has been separated out in order to make importing updates from AOSP into the TWRP project. twinstall.cpp has been removed from the recovery binary and added to this library. It has been refactored for libziparchive. Sideload has been reworked to use the newer methods from AOSP on flashing packages through adb sideload. We are also removing old libraries for adb and verifier. Lastly before flashing a zip or image, we want to unlock block devices for writing so that when an OTA is flashed to the inactive slot, the flash will succeed. Change-Id: I6d8702fc9031ffaf9f666b4ba375dc7d9362e473
69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
/*
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* Copyright (C) 2015 The Team Win Recovery 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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#include <pthread.h>
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#include <stdio.h>
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#include "tw_atomic.hpp"
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/*
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* According to this documentation:
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* https://developer.android.com/training/articles/smp.html
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* it is recommended to use mutexes instead of atomics. This class
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* provides us with a wrapper to make "atomic" variables easy to use.
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*/
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TWAtomicInt::TWAtomicInt(int initial_value /* = 0 */) {
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if (pthread_mutex_init(&mutex_lock, NULL) != 0) {
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// This should hopefully never happen. If it does, the
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// operations will not be atomic, but we will allow things to
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// continue anyway after logging the issue and just hope for
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// the best.
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printf("TWAtomic error initializing mutex.\n");
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use_mutex = false;
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} else {
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use_mutex = true;
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}
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value = initial_value;
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}
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TWAtomicInt::~TWAtomicInt() {
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if (use_mutex)
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pthread_mutex_destroy(&mutex_lock);
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}
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void TWAtomicInt::set_value(int new_value) {
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if (use_mutex) {
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pthread_mutex_lock(&mutex_lock);
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value = new_value;
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pthread_mutex_unlock(&mutex_lock);
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} else {
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value = new_value;
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}
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}
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int TWAtomicInt::get_value(void) {
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int ret_val;
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if (use_mutex) {
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pthread_mutex_lock(&mutex_lock);
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ret_val = value;
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pthread_mutex_unlock(&mutex_lock);
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} else {
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ret_val = value;
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}
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return ret_val;
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}
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