[v8] Live Update

[PATCH V8 15/39] qapi: QAPI_LIST_LENGTH

Steve Sistare posted 39 patches 3 years, 7 months ago

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Maintainers: Stefano Stabellini <sstabellini@kernel.org>, Anthony Perard <anthony.perard@citrix.com>, Paul Durrant <paul@xen.org>, David Hildenbrand <david@redhat.com>, Igor Mammedov <imammedo@redhat.com>, "Marc-André Lureau" <marcandre.lureau@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, "Alex Bennée" <alex.bennee@linaro.org>, "Philippe Mathieu-Daudé" <f4bug@amsat.org>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>, "Michael S. Tsirkin" <mst@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Alex Williamson <alex.williamson@redhat.com>, Steve Sistare <steven.sistare@oracle.com>, Mark Kanda <mark.kanda@oracle.com>, Peter Xu <peterx@redhat.com>, Juan Quintela <quintela@redhat.com>, Markus Armbruster <armbru@redhat.com>, Michael Roth <michael.roth@amd.com>, John Snow <jsnow@redhat.com>, Cleber Rosa <crosa@redhat.com>, Beraldo Leal <bleal@redhat.com>, Eric Blake <eblake@redhat.com>, Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>, Wainer dos Santos Moschetta <wainersm@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>, Stefan Weil <sw@weilnetz.de>

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[PATCH V8 15/39] qapi: QAPI_LIST_LENGTH

Posted by Steve Sistare 3 years, 7 months ago

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
---
 include/qapi/util.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/include/qapi/util.h b/include/qapi/util.h
index 7d88b09..75dddca 100644
--- a/include/qapi/util.h
+++ b/include/qapi/util.h
@@ -65,4 +65,17 @@ struct strList *strList_from_string(const char *in, char delim);
     (tail) = &(*(tail))->next; \
 } while (0)
 
+/*
+ * For any GenericList @list, return its length.
+ */
+#define QAPI_LIST_LENGTH(list) \
+    ({ \
+        int len = 0; \
+        typeof(list) elem; \
+        for (elem = list; elem != NULL; elem = elem->next) { \
+            len++; \
+        } \
+        len; \
+    })
+
 #endif
-- 
1.8.3.1

Re: [PATCH V8 15/39] qapi: QAPI_LIST_LENGTH

Posted by Marc-André Lureau 3 years, 7 months ago

Hi

On Wed, Jun 15, 2022 at 7:38 PM Steve Sistare <steven.sistare@oracle.com>
wrote:

> Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
>

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


> ---
>  include/qapi/util.h | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
>
> diff --git a/include/qapi/util.h b/include/qapi/util.h
> index 7d88b09..75dddca 100644
> --- a/include/qapi/util.h
> +++ b/include/qapi/util.h
> @@ -65,4 +65,17 @@ struct strList *strList_from_string(const char *in,
> char delim);
>      (tail) = &(*(tail))->next; \
>  } while (0)
>
> +/*
> + * For any GenericList @list, return its length.
> + */
> +#define QAPI_LIST_LENGTH(list) \
> +    ({ \
> +        int len = 0; \
> +        typeof(list) elem; \
> +        for (elem = list; elem != NULL; elem = elem->next) { \
> +            len++; \
> +        } \
> +        len; \
> +    })
> +
>  #endif
> --
> 1.8.3.1
>
>
>

-- 
Marc-André Lureau