mirror of
https://github.com/chararomandroid/android_device_samsung_a20
synced 2026-08-22 12:05:32 -04:00
833959f896Reason: unsupported Inital inputmonitor * Tool to record input keycodes (numbers) Signed-off-by: roynatech2544 <whiteshell2544@naver.com> universal7885: inputmonitor: fix build errors
132 lines
3.8 KiB
C++
Executable file
132 lines
3.8 KiB
C++
Executable file
/*
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* Copyright (C) 2021 Soo-Hean Na "Royna"
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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 <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <linux/input.h>
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#include <string.h>
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#include <stdio.h>
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#include <thread>
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#include <glob.h>
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#include <vector>
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#include <chrono>
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#include <thread>
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#define LOG_TAG "InputMonitor"
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#include <utils/Log.h>
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#include <algorithm>
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static const char *const evval[3] = {
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"RELEASED",
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"PRESSED ",
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"REPEATED"
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};
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using std::vector;
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using std::string;
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using namespace std::this_thread; // sleep_for, sleep_until
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using namespace std::chrono; // nanoseconds, system_clock, seconds
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vector<string> globVector(const string& pattern){
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glob_t glob_result;
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glob(pattern.c_str(), GLOB_TILDE, NULL, &glob_result);
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vector<string> files;
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for(unsigned int i = 0;i < glob_result.gl_pathc; ++i){
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files.push_back(string(glob_result.gl_pathv[i]));
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}
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globfree(&glob_result);
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return files;
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}
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int detect_totalevents(){
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vector<string> inputs = globVector("/sys/devices/virtual/input/");
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int count = 0;
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for (int i = 0; i < inputs.size(); i++){
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if (inputs[i].rfind("input", 0) == 0) {
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count++;
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}
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}
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return count;
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}
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char get_eventname(const char& sysfs_input){
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int fd;
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char name;
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ssize_t n;
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fd = open(&sysfs_input, O_RDONLY);
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if (fd == -1) {
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ALOGE("Cannot open %c: errno %s.", sysfs_input, strerror(errno));
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return EXIT_FAILURE;
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}
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n = read(fd, &name, sizeof name);
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if (n == (ssize_t) -1) {
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ALOGE("Cannot read from %c.", sysfs_input);
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}
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return name;
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}
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void monitor_input(const char& dev_node, const char& sysfs_input)
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{
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struct input_event ev;
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ssize_t n;
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int fd;
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bool fail;
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fd = open(&dev_node, O_RDONLY);
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if (fd == -1) {
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ALOGE("Cannot open %c: errno %s.", dev_node, strerror(errno));
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}
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fail = false;
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while (fd != -1) {
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n = read(fd, &ev, sizeof ev);
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if (n == (ssize_t)-1) {
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if (errno == EINTR)
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continue;
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else
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fail = true;
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break;
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} else if (n != sizeof ev) {
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errno = EIO;
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break;
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}
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if (ev.type == EV_KEY && ev.value >= 0 && ev.value <= 2){
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ALOGI("%c (dev: %c) got keyevent %s (Keycode %d)", get_eventname(sysfs_input), dev_node, evval[ev.value], (int) ev.code);
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}
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sleep_until(system_clock::now() + milliseconds(100));
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}
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if (fail){
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ALOGE("Monitoring %c failed, errno = %s", dev_node, strerror(errno));
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}
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}
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int main(){
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int totalevents = detect_totalevents();
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vector<string> eventlist = globVector("/sys/devices/virtual/input/");
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std::vector<string>::iterator position = std::find(eventlist.begin(), eventlist.end(), "mice");
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if (position != eventlist.end()) // == eventlist.end() means the element was not found
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eventlist.erase(position);
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vector<std::thread> threads;
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for (int k = 0; k < totalevents; k++){
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string number = eventlist[k].substr(5, 6);
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auto dev_node = "/dev/input/event" + number;
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auto sysfs_node = "/sys/devices/virtual/input/input" + number + "/name";
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threads.push_back(std::thread(monitor_input, *dev_node.c_str(), *sysfs_node.c_str()));
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}
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for (int k = 0; k < totalevents; k++){
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threads[k].join();
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}
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}
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