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Re: [Qemu-devel] [PATCH for-1.2 v3] qemu-ga: report success-response fie


From: Luiz Capitulino
Subject: Re: [Qemu-devel] [PATCH for-1.2 v3] qemu-ga: report success-response field in guest-info
Date: Tue, 21 Aug 2012 11:03:27 -0300

On Tue, 21 Aug 2012 14:39:35 +0200
Michal Privoznik <address@hidden> wrote:

> This is a useful hint for users (or libvirt) whether a command returns
> anything success and hence wait for reply or not.

Missing signed-off-by (I think you can add it as a reply to this patch).

Patch looks good, it's fixing an important omission from my no-success-response
support:

 Reviewed-by: Luiz Capitulino <address@hidden>
 Tested-by: Luiz Capitulino <address@hidden>

> ---
> diff to v2:
> -fixed typo and field description
> 
> diff to v1:
> -changed condition in qmp_command_reports_success per Paolo's advice
> 
>  qapi-schema-guest.json |    6 +++++-
>  qapi/qmp-core.h        |    1 +
>  qapi/qmp-registry.c    |   12 ++++++++++++
>  qga/commands.c         |    1 +
>  4 files changed, 19 insertions(+), 1 deletions(-)
> 
> diff --git a/qapi-schema-guest.json b/qapi-schema-guest.json
> index d955cf1..60872e5 100644
> --- a/qapi-schema-guest.json
> +++ b/qapi-schema-guest.json
> @@ -91,10 +91,14 @@
>  #
>  # @enabled: whether command is currently enabled by guest admin
>  #
> +# @success-response: true unless the command does not respond on success
> +#                    See 'guest-shutdown' command for more detailed info.
> +#
>  # Since 1.1.0
>  ##
>  { 'type': 'GuestAgentCommandInfo',
> -  'data': { 'name': 'str', 'enabled': 'bool' } }
> +  'data': { 'name': 'str', 'enabled': 'bool',
> +            'success-response': 'bool'} }
>  
>  ##
>  # @GuestAgentInfo
> diff --git a/qapi/qmp-core.h b/qapi/qmp-core.h
> index 00446cf..271c3f2 100644
> --- a/qapi/qmp-core.h
> +++ b/qapi/qmp-core.h
> @@ -48,6 +48,7 @@ QObject *qmp_dispatch(QObject *request);
>  void qmp_disable_command(const char *name);
>  void qmp_enable_command(const char *name);
>  bool qmp_command_is_enabled(const char *name);
> +bool qmp_command_reports_success(const char *name);
>  char **qmp_get_command_list(void);
>  QObject *qmp_build_error_object(Error *errp);
>  
> diff --git a/qapi/qmp-registry.c b/qapi/qmp-registry.c
> index 5414613..3f7303c 100644
> --- a/qapi/qmp-registry.c
> +++ b/qapi/qmp-registry.c
> @@ -77,6 +77,18 @@ bool qmp_command_is_enabled(const char *name)
>      return false;
>  }
>  
> +bool qmp_command_reports_success(const char *name) {
> +    QmpCommand *cmd;
> +
> +    QTAILQ_FOREACH(cmd, &qmp_commands, node) {
> +        if (strcmp(cmd->name, name) == 0) {
> +            return (cmd->options & QCO_NO_SUCCESS_RESP) == 0;
> +        }
> +    }
> +
> +    return true;
> +}
> +
>  char **qmp_get_command_list(void)
>  {
>      QmpCommand *cmd;
> diff --git a/qga/commands.c b/qga/commands.c
> index 46b0b08..9811221 100644
> --- a/qga/commands.c
> +++ b/qga/commands.c
> @@ -63,6 +63,7 @@ struct GuestAgentInfo *qmp_guest_info(Error **err)
>          cmd_info = g_malloc0(sizeof(GuestAgentCommandInfo));
>          cmd_info->name = strdup(*cmd_list);
>          cmd_info->enabled = qmp_command_is_enabled(cmd_info->name);
> +        cmd_info->success_response = 
> qmp_command_reports_success(cmd_info->name);
>  
>          cmd_info_list = g_malloc0(sizeof(GuestAgentCommandInfoList));
>          cmd_info_list->value = cmd_info;




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