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527792fae6
Convert the exec socket migration protocol driver to use QIOChannel and QEMUFileChannel, instead of the stdio popen APIs. It can be unconditionally built because the QIOChannelCommand class can report suitable error messages on platforms which can't fork processes. Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <1461751518-12128-17-git-send-email-berrange@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
/*
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* QEMU live migration
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*
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* Copyright IBM, Corp. 2008
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* Copyright Dell MessageOne 2008
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* Copyright Red Hat, Inc. 2015-2016
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*
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* Authors:
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* Anthony Liguori <aliguori@us.ibm.com>
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* Charles Duffy <charles_duffy@messageone.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 "io/channel-command.h"
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#include "trace.h"
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void exec_start_outgoing_migration(MigrationState *s, const char *command, Error **errp)
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{
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QIOChannel *ioc;
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const char *argv[] = { "/bin/sh", "-c", command, NULL };
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trace_migration_exec_outgoing(command);
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ioc = QIO_CHANNEL(qio_channel_command_new_spawn(argv,
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O_WRONLY,
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errp));
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if (!ioc) {
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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 exec_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 exec_start_incoming_migration(const char *command, Error **errp)
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{
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QIOChannel *ioc;
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const char *argv[] = { "/bin/sh", "-c", command, NULL };
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trace_migration_exec_incoming(command);
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ioc = QIO_CHANNEL(qio_channel_command_new_spawn(argv,
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O_RDONLY,
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errp));
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if (!ioc) {
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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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exec_accept_incoming_migration,
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NULL,
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NULL);
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}
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