1 /* 2 * QEMU live migration 3 * 4 * Copyright IBM, Corp. 2008 5 * Copyright Dell MessageOne 2008 6 * Copyright Red Hat, Inc. 2015-2016 7 * 8 * Authors: 9 * Anthony Liguori <aliguori@us.ibm.com> 10 * Charles Duffy <charles_duffy@messageone.com> 11 * Daniel P. Berrange <berrange@redhat.com> 12 * 13 * This work is licensed under the terms of the GNU GPL, version 2. See 14 * the COPYING file in the top-level directory. 15 * 16 * Contributions after 2012-01-13 are licensed under the terms of the 17 * GNU GPL, version 2 or (at your option) any later version. 18 */ 19 20 #include "qemu/osdep.h" 21 #include "channel.h" 22 #include "exec.h" 23 #include "io/channel-command.h" 24 #include "trace.h" 25 26 27 void exec_start_outgoing_migration(MigrationState *s, const char *command, Error **errp) 28 { 29 QIOChannel *ioc; 30 const char *argv[] = { "/bin/sh", "-c", command, NULL }; 31 32 trace_migration_exec_outgoing(command); 33 ioc = QIO_CHANNEL(qio_channel_command_new_spawn(argv, 34 O_RDWR, 35 errp)); 36 if (!ioc) { 37 return; 38 } 39 40 qio_channel_set_name(ioc, "migration-exec-outgoing"); 41 migration_channel_connect(s, ioc, NULL, NULL); 42 object_unref(OBJECT(ioc)); 43 } 44 45 static gboolean exec_accept_incoming_migration(QIOChannel *ioc, 46 GIOCondition condition, 47 gpointer opaque) 48 { 49 migration_channel_process_incoming(ioc); 50 object_unref(OBJECT(ioc)); 51 return G_SOURCE_REMOVE; 52 } 53 54 void exec_start_incoming_migration(const char *command, Error **errp) 55 { 56 QIOChannel *ioc; 57 const char *argv[] = { "/bin/sh", "-c", command, NULL }; 58 59 trace_migration_exec_incoming(command); 60 ioc = QIO_CHANNEL(qio_channel_command_new_spawn(argv, 61 O_RDWR, 62 errp)); 63 if (!ioc) { 64 return; 65 } 66 67 qio_channel_set_name(ioc, "migration-exec-incoming"); 68 qio_channel_add_watch(ioc, 69 G_IO_IN, 70 exec_accept_incoming_migration, 71 NULL, 72 NULL); 73 } 74