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- /*
- * QEMU live migration
- *
- * Copyright IBM, Corp. 2008
- * Copyright Dell MessageOne 2008
- * Copyright Red Hat, Inc. 2015-2016
- *
- * Authors:
- * Anthony Liguori <aliguori@us.ibm.com>
- * Charles Duffy <charles_duffy@messageone.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 "qemu/error-report.h"
- #include "channel.h"
- #include "exec.h"
- #include "migration.h"
- #include "io/channel-command.h"
- #include "trace.h"
- #include "qemu/cutils.h"
- #ifdef WIN32
- const char *exec_get_cmd_path(void);
- const char *exec_get_cmd_path(void)
- {
- g_autofree char *detected_path = g_new(char, MAX_PATH);
- if (GetSystemDirectoryA(detected_path, MAX_PATH) == 0) {
- warn_report("Could not detect cmd.exe path, using default.");
- return "C:\\Windows\\System32\\cmd.exe";
- }
- pstrcat(detected_path, MAX_PATH, "\\cmd.exe");
- return g_steal_pointer(&detected_path);
- }
- #endif
- void exec_start_outgoing_migration(MigrationState *s, const char *command, Error **errp)
- {
- QIOChannel *ioc;
- #ifdef WIN32
- const char *argv[] = { exec_get_cmd_path(), "/c", command, NULL };
- #else
- const char *argv[] = { "/bin/sh", "-c", command, NULL };
- #endif
- trace_migration_exec_outgoing(command);
- ioc = QIO_CHANNEL(qio_channel_command_new_spawn(argv,
- O_RDWR,
- errp));
- if (!ioc) {
- return;
- }
- qio_channel_set_name(ioc, "migration-exec-outgoing");
- migration_channel_connect(s, ioc, NULL, NULL);
- object_unref(OBJECT(ioc));
- }
- static gboolean exec_accept_incoming_migration(QIOChannel *ioc,
- GIOCondition condition,
- gpointer opaque)
- {
- migration_channel_process_incoming(ioc);
- object_unref(OBJECT(ioc));
- return G_SOURCE_REMOVE;
- }
- void exec_start_incoming_migration(const char *command, Error **errp)
- {
- QIOChannel *ioc;
- #ifdef WIN32
- const char *argv[] = { exec_get_cmd_path(), "/c", command, NULL };
- #else
- const char *argv[] = { "/bin/sh", "-c", command, NULL };
- #endif
- trace_migration_exec_incoming(command);
- ioc = QIO_CHANNEL(qio_channel_command_new_spawn(argv,
- O_RDWR,
- errp));
- if (!ioc) {
- return;
- }
- qio_channel_set_name(ioc, "migration-exec-incoming");
- qio_channel_add_watch_full(ioc, G_IO_IN,
- exec_accept_incoming_migration,
- NULL, NULL,
- g_main_context_get_thread_default());
- }
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