logmeow/logcat_thread.cpp

#include <unistd.h>
#include <sys/epoll.h>

#include "log.h"
#include "misc.h"
#include "logcat_thread.h"

#define EPOLL_MAX_EVENTS 10

LogcatThread::LogcatThread() {
    this->_epoll_fd = epoll_create1(EPOLL_CLOEXEC);
    if (this->_epoll_fd == -1) {
        throw make_system_error("epoll_create1()");
    }
    this->_thread = std::thread(&LogcatThread::_run, this);
}

LogcatThread::~LogcatThread() {
    if (this->_epoll_fd != -1 && close(this->_epoll_fd)) {
        log(std::string("Failed to close epoll file descriptor: ") + make_system_error("close()").what());
    }
}

void LogcatThread::join() {
    this->_thread.join();
}

void LogcatThread::_run() {
    struct epoll_event events[EPOLL_MAX_EVENTS];

    // TODO break when run_main_loop is false
    while (true) {
        printf("(boop)\n");
        int ready_fds = epoll_wait(this->_epoll_fd, events, EPOLL_MAX_EVENTS, 1000);
        if (ready_fds == -1) {
            printf("%s\n", format_log(make_system_error("epoll_wait()").what()).c_str());
            break;
        }

        for (int i=0; i < ready_fds; i++) {
            printf("ain't no way in hell do we get a ready fd (#%d) when we haven't set up anything\n", i);
        }
    }
}