Program Listing for File evdevtest.cpp

↰ Return to documentation for file (include\tests\INPUT_TESTS\evdevtest.cpp)

#include "LINUX_INPUT.hpp"
#include <chrono>
#include <fcntl.h>
#include <iostream>
#include <linux/futex.h>
#include <sys/mman.h>
#include <sys/syscall.h>
#include <unistd.h>

int
main(int argc, char *argv[])
{
    std::string posRoot = "/dev/input/event";
    int         evdevEventFD;
    libevdev   *dev = nullptr;
    for (int i = 14; i > 0; --i) {
        std::string pos = posRoot + std::to_string(i);
        (evdevEventFD)  = open(pos.c_str(), O_RDONLY); // | O_NONBLOCK);
        std::cout << pos << std::endl;
        if (libevdev_new_from_fd((evdevEventFD), &dev) < 0) {
            std::cout << "init failed" << std::endl;
            close((evdevEventFD));
            continue;
        }
        if (libevdev_has_event_code(dev, EV_REL, REL_X) > 0) {
            break;
        } else {
            std::cout << "not a mouse" << std::endl;
            libevdev_free(dev);
            dev = nullptr;
            close(evdevEventFD);
        }
    }
    input_event ev;

    while (true) {
        int rc = libevdev_next_event(dev, LIBEVDEV_READ_FLAG_BLOCKING, &ev);
        if (rc == LIBEVDEV_READ_STATUS_SUCCESS) {
            auto code  = ev.code;
            auto time  = ev.time;
            auto type  = ev.type;
            auto value = ev.value;
            std::cout << "evdev IO Result: " << std::endl;
            std::cout << "code: " << code << std::endl;
            std::cout << "time: " << time.tv_usec << std::endl;
            std::cout << "type: " << type << std::endl;
            std::cout << "value: " << value << std::endl;
            std::cout << "WAKEUP CALL" << std::endl;
        } else {

            std::cout << "Failed" << rc << std::endl;
        }
    }
    libevdev_free(dev);

    close(evdevEventFD);
    return 0;
}