mirror of https://gitee.com/openkylin/qemu.git
75 lines
1.9 KiB
C
75 lines
1.9 KiB
C
/*
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* QEMU live migration via generic fd
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*
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* Copyright Red Hat, Inc. 2009-2016
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*
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* Authors:
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* Chris Lalancette <clalance@redhat.com>
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* Daniel P. Berrange <berrange@redhat.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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* Contributions after 2012-01-13 are licensed under the terms of the
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* GNU GPL, version 2 or (at your option) any later version.
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*/
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#include "qemu/osdep.h"
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#include "channel.h"
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#include "fd.h"
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#include "migration.h"
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#include "monitor/monitor.h"
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#include "io/channel-util.h"
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#include "trace.h"
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void fd_start_outgoing_migration(MigrationState *s, const char *fdname, Error **errp)
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{
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QIOChannel *ioc;
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int fd = monitor_get_fd(cur_mon, fdname, errp);
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if (fd == -1) {
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return;
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}
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trace_migration_fd_outgoing(fd);
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ioc = qio_channel_new_fd(fd, errp);
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if (!ioc) {
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close(fd);
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return;
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}
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qio_channel_set_name(QIO_CHANNEL(ioc), "migration-fd-outgoing");
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migration_channel_connect(s, ioc, NULL, NULL);
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object_unref(OBJECT(ioc));
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}
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static gboolean fd_accept_incoming_migration(QIOChannel *ioc,
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GIOCondition condition,
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gpointer opaque)
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{
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migration_channel_process_incoming(ioc);
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object_unref(OBJECT(ioc));
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return G_SOURCE_REMOVE;
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}
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void fd_start_incoming_migration(const char *infd, Error **errp)
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{
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QIOChannel *ioc;
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int fd;
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fd = strtol(infd, NULL, 0);
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trace_migration_fd_incoming(fd);
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ioc = qio_channel_new_fd(fd, errp);
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if (!ioc) {
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close(fd);
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return;
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}
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qio_channel_set_name(QIO_CHANNEL(ioc), "migration-fd-incoming");
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qio_channel_add_watch_full(ioc, G_IO_IN,
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fd_accept_incoming_migration,
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NULL, NULL,
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g_main_context_get_thread_default());
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}
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