| /* |
| * QEMU live migration via generic fd |
| * |
| * Copyright Red Hat, Inc. 2009-2016 |
| * |
| * Authors: |
| * Chris Lalancette <clalance@redhat.com> |
| * Daniel P. Berrange <berrange@redhat.com> |
| * |
| * This work is licensed under the terms of the GNU GPL, version 2. See |
| * the COPYING file in the top-level directory. |
| * |
| * Contributions after 2012-01-13 are licensed under the terms of the |
| * GNU GPL, version 2 or (at your option) any later version. |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "channel.h" |
| #include "fd.h" |
| #include "migration.h" |
| #include "monitor/monitor.h" |
| #include "io/channel-util.h" |
| #include "trace.h" |
| |
| |
| void fd_start_outgoing_migration(MigrationState *s, const char *fdname, Error **errp) |
| { |
| QIOChannel *ioc; |
| int fd = monitor_get_fd(cur_mon, fdname, errp); |
| if (fd == -1) { |
| return; |
| } |
| |
| trace_migration_fd_outgoing(fd); |
| ioc = qio_channel_new_fd(fd, errp); |
| if (!ioc) { |
| close(fd); |
| return; |
| } |
| |
| qio_channel_set_name(QIO_CHANNEL(ioc), "migration-fd-outgoing"); |
| migration_channel_connect(s, ioc, NULL, NULL); |
| object_unref(OBJECT(ioc)); |
| } |
| |
| static gboolean fd_accept_incoming_migration(QIOChannel *ioc, |
| GIOCondition condition, |
| gpointer opaque) |
| { |
| migration_channel_process_incoming(ioc); |
| object_unref(OBJECT(ioc)); |
| return G_SOURCE_REMOVE; |
| } |
| |
| void fd_start_incoming_migration(const char *fdname, Error **errp) |
| { |
| QIOChannel *ioc; |
| int fd = monitor_fd_param(cur_mon, fdname, errp); |
| if (fd == -1) { |
| return; |
| } |
| |
| trace_migration_fd_incoming(fd); |
| |
| ioc = qio_channel_new_fd(fd, errp); |
| if (!ioc) { |
| close(fd); |
| return; |
| } |
| |
| qio_channel_set_name(QIO_CHANNEL(ioc), "migration-fd-incoming"); |
| qio_channel_add_watch_full(ioc, G_IO_IN, |
| fd_accept_incoming_migration, |
| NULL, NULL, |
| g_main_context_get_thread_default()); |
| } |