1 /* 2 * QEMU I/O channels utility APIs 3 * 4 * Copyright (c) 2016 Red Hat, Inc. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 18 * 19 */ 20 21 #include "qemu/osdep.h" 22 #include "io/channel-util.h" 23 #include "io/channel-file.h" 24 #include "io/channel-socket.h" 25 26 27 QIOChannel *qio_channel_new_fd(int fd, 28 Error **errp) 29 { 30 QIOChannel *ioc; 31 32 if (fd_is_socket(fd)) { 33 ioc = QIO_CHANNEL(qio_channel_socket_new_fd(fd, errp)); 34 } else { 35 ioc = QIO_CHANNEL(qio_channel_file_new_fd(fd)); 36 } 37 return ioc; 38 } 39 40 41 void qio_channel_util_set_aio_fd_handler(int read_fd, 42 AioContext *read_ctx, 43 IOHandler *io_read, 44 int write_fd, 45 AioContext *write_ctx, 46 IOHandler *io_write, 47 void *opaque) 48 { 49 if (read_fd == write_fd && read_ctx == write_ctx) { 50 aio_set_fd_handler(read_ctx, read_fd, io_read, io_write, 51 NULL, NULL, opaque); 52 } else { 53 if (read_ctx) { 54 aio_set_fd_handler(read_ctx, read_fd, io_read, NULL, 55 NULL, NULL, opaque); 56 } 57 if (write_ctx) { 58 aio_set_fd_handler(write_ctx, write_fd, NULL, io_write, 59 NULL, NULL, opaque); 60 } 61 } 62 } 63