diff mbox series

[RFC,v2,29/33] migration: return incoming task tag for exec

Message ID 1504081950-2528-30-git-send-email-peterx@redhat.com
State New
Headers show
Series Migration: postcopy failure recovery | expand

Commit Message

Peter Xu Aug. 30, 2017, 8:32 a.m. UTC
Return the async task tag for exec typed incoming migration in
exec_start_incoming_migration().

Signed-off-by: Peter Xu <peterx@redhat.com>
---
 migration/exec.c | 18 +++++++++++-------
 migration/exec.h |  2 +-
 2 files changed, 12 insertions(+), 8 deletions(-)

Comments

Dr. David Alan Gilbert Sept. 22, 2017, 8:15 p.m. UTC | #1
* Peter Xu (peterx@redhat.com) wrote:
> Return the async task tag for exec typed incoming migration in
> exec_start_incoming_migration().
> 
> Signed-off-by: Peter Xu <peterx@redhat.com>

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

> ---
>  migration/exec.c | 18 +++++++++++-------
>  migration/exec.h |  2 +-
>  2 files changed, 12 insertions(+), 8 deletions(-)
> 
> diff --git a/migration/exec.c b/migration/exec.c
> index 08b599e..ef1fb4c 100644
> --- a/migration/exec.c
> +++ b/migration/exec.c
> @@ -52,7 +52,11 @@ static gboolean exec_accept_incoming_migration(QIOChannel *ioc,
>      return FALSE; /* unregister */
>  }
>  
> -void exec_start_incoming_migration(const char *command, Error **errp)
> +/*
> + * Returns the tag ID of the watch that is attached to global main
> + * loop (>0), or zero if failure detected.
> + */
> +guint exec_start_incoming_migration(const char *command, Error **errp)
>  {
>      QIOChannel *ioc;
>      const char *argv[] = { "/bin/sh", "-c", command, NULL };
> @@ -62,13 +66,13 @@ void exec_start_incoming_migration(const char *command, Error **errp)
>                                                      O_RDWR,
>                                                      errp));
>      if (!ioc) {
> -        return;
> +        return 0;
>      }
>  
>      qio_channel_set_name(ioc, "migration-exec-incoming");
> -    qio_channel_add_watch(ioc,
> -                          G_IO_IN,
> -                          exec_accept_incoming_migration,
> -                          NULL,
> -                          NULL);
> +    return qio_channel_add_watch(ioc,
> +                                 G_IO_IN,
> +                                 exec_accept_incoming_migration,
> +                                 NULL,
> +                                 NULL);
>  }
> diff --git a/migration/exec.h b/migration/exec.h
> index b210ffd..0a7aada 100644
> --- a/migration/exec.h
> +++ b/migration/exec.h
> @@ -19,7 +19,7 @@
>  
>  #ifndef QEMU_MIGRATION_EXEC_H
>  #define QEMU_MIGRATION_EXEC_H
> -void exec_start_incoming_migration(const char *host_port, Error **errp);
> +guint exec_start_incoming_migration(const char *host_port, Error **errp);
>  
>  void exec_start_outgoing_migration(MigrationState *s, const char *host_port,
>                                     Error **errp);
> -- 
> 2.7.4
> 
> 
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
diff mbox series

Patch

diff --git a/migration/exec.c b/migration/exec.c
index 08b599e..ef1fb4c 100644
--- a/migration/exec.c
+++ b/migration/exec.c
@@ -52,7 +52,11 @@  static gboolean exec_accept_incoming_migration(QIOChannel *ioc,
     return FALSE; /* unregister */
 }
 
-void exec_start_incoming_migration(const char *command, Error **errp)
+/*
+ * Returns the tag ID of the watch that is attached to global main
+ * loop (>0), or zero if failure detected.
+ */
+guint exec_start_incoming_migration(const char *command, Error **errp)
 {
     QIOChannel *ioc;
     const char *argv[] = { "/bin/sh", "-c", command, NULL };
@@ -62,13 +66,13 @@  void exec_start_incoming_migration(const char *command, Error **errp)
                                                     O_RDWR,
                                                     errp));
     if (!ioc) {
-        return;
+        return 0;
     }
 
     qio_channel_set_name(ioc, "migration-exec-incoming");
-    qio_channel_add_watch(ioc,
-                          G_IO_IN,
-                          exec_accept_incoming_migration,
-                          NULL,
-                          NULL);
+    return qio_channel_add_watch(ioc,
+                                 G_IO_IN,
+                                 exec_accept_incoming_migration,
+                                 NULL,
+                                 NULL);
 }
diff --git a/migration/exec.h b/migration/exec.h
index b210ffd..0a7aada 100644
--- a/migration/exec.h
+++ b/migration/exec.h
@@ -19,7 +19,7 @@ 
 
 #ifndef QEMU_MIGRATION_EXEC_H
 #define QEMU_MIGRATION_EXEC_H
-void exec_start_incoming_migration(const char *host_port, Error **errp);
+guint exec_start_incoming_migration(const char *host_port, Error **errp);
 
 void exec_start_outgoing_migration(MigrationState *s, const char *host_port,
                                    Error **errp);