Ejemplo n.º 1
0
/*
 * If your compiler can inline your callback (i.e. it is visible to it at the place of the set call and
 * your compiler is good :), then the method will be fully inlined into the thunking function, making it
 * as fast as a direct C callback.
 *
 * revents was bitset
 *
 * if (revents & EV_READ ) fd->revents |= fd->events & POLLIN;
 * if (revents & EV_WRITE) fd->revents |= fd->events & POLLOUT;
 */
void CNetBackend::accept_cb(ev::io &w, int32 revents)
{
    if ( EV_ERROR & revents )  //error
    {
        GERROR() << "accept_cb error:" << strerror(errno) << "\n";

        w.stop();

        return;
    }

    struct sockaddr_in socket_address;
    int32 length = sizeof( socket_address );

    //w.fd is m_plistenning_socket->get_listen_socket_fd()
    int32 fd = accept( w.fd,(sockaddr *)&socket_address,(socklen_t *)&length );
    if ( fd < 0 )
    {
        if ( EWOULDBLOCK == errno || EAGAIN == errno )  //无连接libev怎么会调用accept_cb
        {
            GERROR() << "accept_cb EWOULDBLOCK or EAGAIN found\n";
            return;
        }

        GERROR() << "accept new connection fail:" << strerror( errno ) << "\n";

        return;
    }

    add_socket( fd,socket_address );
}
Ejemplo n.º 2
0
void DataSink::_DeleteAndCleanupWatcher(ev::io &watcher)
{
	watcher.stop(); // Make watcher inactive
	close(watcher.fd); // Close associated socket
	int numWatchersRemoved = _watcherMap.erase(&watcher);
	CHECK(numWatchersRemoved == 1);
	delete &watcher; // Release memory
}
Ejemplo n.º 3
0
 void readCallback(ev::io& w, int)
 {
     char buf[m_receiveBufferSize];
     
     auto res = m_bfSocket->read(buf, m_receiveBufferSize);
     m_receivedBytes += res;
     ASSERT_EQ(buf[0], 0x47);
     ASSERT_EQ(res, m_messageSize);
     
     if(m_doneSending)
         w.stop();
 }
Ejemplo n.º 4
0
void Connection::read(ev::io &w, int revents) {
    char buffer[BUFFER_SIZE];
    ssize_t r = recv(w.fd, buffer, BUFFER_SIZE, MSG_NOSIGNAL);
    if (r < 0) { // error
        char err_buf[100];
        log_file << "Error reading socket: " << strerror_r(errno, err_buf, 100) << std::endl;
        w.stop();
        delete this;
        return;
    } else if (r == 0) { // connection closed
        w.stop();
        delete this;
        return;
    } else {
        parse(buffer, r, w);
        if (closeConnection) {
          w.stop();
          shutdown(w.fd, SHUT_RDWR);
          close(w.fd);
          delete this;
        }
    }
}
Ejemplo n.º 5
0
Archivo: ev.cpp Proyecto: AmkG/snap
	void do_read(ev::io& w, int revents) {
		/*now attempt the read*/
		/*first use a select() to check: the event loop
		might falsely trigger
		*/
		if((revents & ev::READ) && check_select(ev::READ)) {
			/*now attempt a read*/
			ioa.data.reset(
				new std::vector<unsigned char>(READ_SIZE));
			ssize_t rv = read(fd, io.data->begin(), READ_SIZE);
			if(rv < 0) {
				/*potential errors*/
				switch(errno) {
				/*ignore these*/
				case EAGAIN:
				case EINTR:
					return;
					break;
				case EBADF:
					todo.err(ioa, "not valid, or not "
							"open for reading");
					break;
				case EFAULT:
					todo.err(ioa, "internal error, buffer "
							"misallocated");
					break;
				case EINVAL:
					todo.err(ioa, "unsuitable for "
							"reading");
					break;
				case EIO:
					todo.err(ioa, "low-level i/o error");
					break;
				default:
					todo.err(ioa, "unknown error type");
					break;
				}
			} else if(rv == 0) {
				todo.eof(ioa);
			} else {
				ioa.data->resize(rv);
				todo.respond(ioa);
			}
			w.stop();
		}
	}
Ejemplo n.º 6
0
void AppServer::read_cb(ev::io &watcher, int revents)
{
    if(EV_ERROR & revents)
    {
        perror("Error event in accept\n");
        return;
    }

    char buffer[BUFFER_SIZE];
    int readlen;

    readlen = recv(watcher.fd, buffer, BUFFER_SIZE, 0);
    if(readlen < 0)
    {
        perror("read error!\n");
        return;
    }
    if(readlen == 0)
    {
        TESTINFO("client disconnected.\n");
        XMessage msg;
        msg.user_id = watcher.fd;
        msg.msg_type = XMSG_DISCONN;
        MessageHandler.push(msg);
        watcher.stop();
        return;
    }
    else//
    {
        buffer[readlen] = '\0';
        TESTINFO("Received: %s", buffer);
        MessageHandler.parse_and_push(buffer, watcher.fd);

    }

    return;
}
Ejemplo n.º 7
0
    /* Socket dapat ditulis */
    void write_cb(ev::io &watcher) {
        if (write_queue.empty()) {
            io.set(ev::READ);
            return;
        }
 
        Buffer* buffer = write_queue.front();
 
        ssize_t written = write(watcher.fd, buffer->dpos(), buffer->nbytes());
        if (written < 0) {
            perror("read error");
            return;
        }
 
        buffer->pos += written;
        if (buffer->nbytes() == 0) {
            write_queue.pop_front();
            delete buffer;
        }

        /* Tutup dan bebaskan watcher saat selesai mengirim response (stateless) */
        io.stop();
        close(sfd);
    }
Ejemplo n.º 8
0
 /* Hancurkan dan tutup */
 virtual ~EchoInstance() {
     /* Tutup dan bebaskan watcher saat socket ditutup */
     io.stop();
     close(sfd);
 }