cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
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channel-watch.h (2959B)

      1/*
      2 * QEMU I/O channels watch helper APIs
      3 *
      4 * Copyright (c) 2015 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#ifndef QIO_CHANNEL_WATCH_H
     22#define QIO_CHANNEL_WATCH_H
     23
     24#include "io/channel.h"
     25
     26/*
     27 * This module provides helper functions that will be needed by
     28 * the various QIOChannel implementations, for creating watches
     29 * on file descriptors / sockets
     30 */
     31
     32/**
     33 * qio_channel_create_fd_watch:
     34 * @ioc: the channel object
     35 * @fd: the file descriptor
     36 * @condition: the I/O condition
     37 *
     38 * Create a new main loop source that is able to
     39 * monitor the file descriptor @fd for the
     40 * I/O conditions in @condition. This is able
     41 * monitor block devices, character devices,
     42 * pipes but not plain files or, on Win32, sockets.
     43 *
     44 * Returns: the new main loop source
     45 */
     46GSource *qio_channel_create_fd_watch(QIOChannel *ioc,
     47                                     int fd,
     48                                     GIOCondition condition);
     49
     50/**
     51 * qio_channel_create_socket_watch:
     52 * @ioc: the channel object
     53 * @fd: the file descriptor
     54 * @condition: the I/O condition
     55 *
     56 * Create a new main loop source that is able to
     57 * monitor the file descriptor @fd for the
     58 * I/O conditions in @condition. This is equivalent
     59 * to qio_channel_create_fd_watch on POSIX systems
     60 * but not on Windows.
     61 *
     62 * Returns: the new main loop source
     63 */
     64GSource *qio_channel_create_socket_watch(QIOChannel *ioc,
     65                                         int fd,
     66                                         GIOCondition condition);
     67
     68/**
     69 * qio_channel_create_fd_pair_watch:
     70 * @ioc: the channel object
     71 * @fdread: the file descriptor for reading
     72 * @fdwrite: the file descriptor for writing
     73 * @condition: the I/O condition
     74 *
     75 * Create a new main loop source that is able to
     76 * monitor the pair of file descriptors @fdread
     77 * and @fdwrite for the I/O conditions in @condition.
     78 * This is intended for monitoring unidirectional
     79 * file descriptors such as pipes, where a pair
     80 * of descriptors is required for bidirectional
     81 * I/O
     82 *
     83 * Returns: the new main loop source
     84 */
     85GSource *qio_channel_create_fd_pair_watch(QIOChannel *ioc,
     86                                          int fdread,
     87                                          int fdwrite,
     88                                          GIOCondition condition);
     89
     90#endif /* QIO_CHANNEL_WATCH_H */