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64802ee57f
Convert the fd socket migration protocol driver to use QIOChannel and QEMUFileChannel, instead of plain sockets APIs. It can be unconditionally built because the QIOChannel APIs it uses will take care to report suitable error messages if needed. Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <1461751518-12128-16-git-send-email-berrange@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
74 lines
1.8 KiB
C
74 lines
1.8 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 "qapi/error.h"
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#include "qemu-common.h"
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#include "migration/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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migration_set_outgoing_channel(s, ioc);
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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_set_incoming_channel(migrate_get_current(), ioc);
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object_unref(OBJECT(ioc));
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return FALSE; /* unregister */
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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_add_watch(ioc,
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G_IO_IN,
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fd_accept_incoming_migration,
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NULL,
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NULL);
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}
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