Re: [Qemu-devel] [PATCH v2 25/29] docs/devel/writing-qmp-commands: Update for modular QAPI

[Marc-Andre Lureau <mlureau@redhat.com>]

On Sun, Feb 11, 2018 at 10:36 AM, Markus Armbruster <armbru@redhat.com> wrote:
> With modular code generation, putting stuff right into
> qapi-schema.json is a bad idea.  Update writing-qmp-commands.txt
> accordingly.
>
> Signed-off-by: Markus Armbruster <armbru@redhat.com>

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>


> ---
>  docs/devel/writing-qmp-commands.txt | 14 +++++++-------
>  1 file changed, 7 insertions(+), 7 deletions(-)
>
> diff --git a/docs/devel/writing-qmp-commands.txt b/docs/devel/writing-qmp-commands.txt
> index 4f5b24c0c4..776b3b41ca 100644
> --- a/docs/devel/writing-qmp-commands.txt
> +++ b/docs/devel/writing-qmp-commands.txt
> @@ -15,8 +15,8 @@ start with docs/interop/qmp-intro.txt.
>  Generally speaking, the following steps should be taken in order to write a
>  new QMP command.
>
> -1. Write the command's and type(s) specification in the QAPI schema file
> -   (qapi-schema.json in the root source directory)
> +1. Define the command and any types it needs in the appropriate QAPI
> +   schema module.
>
>  2. Write the QMP command itself, which is a regular C function. Preferably,
>     the command should be exported by some QEMU subsystem. But it can also be
> @@ -88,8 +88,9 @@ command carries some meaningful action in QEMU but here it will just print
>  Our command will be called "hello-world". It takes no arguments, nor does it
>  return any data.
>
> -The first step is to add the following line to the bottom of the
> -qapi-schema.json file:
> +The first step is defining the command in the appropriate QAPI schema
> +module.  We pick module qapi/misc.json, and add the following line at
> +the bottom:
>
>  { 'command': 'hello-world' }
>
> @@ -245,7 +246,7 @@ This is very important. No QMP command will be accepted in QEMU without proper
>  documentation.
>
>  There are many examples of such documentation in the schema file already, but
> -here goes "hello-world"'s new entry for the qapi-schema.json file:
> +here goes "hello-world"'s new entry for qapi/misc.json:
>
>  ##
>  # @hello-world
> @@ -425,8 +426,7 @@ There are a number of things to be noticed:
>     allocated by the implementation. This is so because the QAPI also generates
>     a function to free its types and it cannot distinguish between dynamically
>     or statically allocated strings
> -6. You have to include the "qmp-commands.h" header file in qemu-timer.c,
> -   otherwise qemu won't build
> +6. You have to include "qapi/qmp-commands-misc.h" in qemu-timer.c
>
>  Time to test the new command. Build qemu, run it as described in the "Testing"
>  section and try this:
> --
> 2.13.6
>