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Re: [Qemu-devel] [PATCH v3 06/13] qobject: Add helper macros for common
From: |
Markus Armbruster |
Subject: |
Re: [Qemu-devel] [PATCH v3 06/13] qobject: Add helper macros for common scalar insertions |
Date: |
Tue, 11 Apr 2017 19:06:21 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux) |
Eric Blake <address@hidden> writes:
> Rather than making lots of callers wrap a scalar in a QInt, QString,
> or QBool, provide helper macros that do the wrapping automatically.
>
> Update the Coccinelle script to make mass conversions easy, although
> the conversion itself will be done as a separate patches to ease
> review and backport efforts.
>
> Signed-off-by: Eric Blake <address@hidden>
> ---
> include/qapi/qmp/qdict.h | 8 ++++++++
> include/qapi/qmp/qlist.h | 8 ++++++++
> scripts/coccinelle/qobject.cocci | 22 ++++++++++++++++++++++
> 3 files changed, 38 insertions(+)
>
> diff --git a/include/qapi/qmp/qdict.h b/include/qapi/qmp/qdict.h
> index fe9a4c5..9d9f9a3 100644
> --- a/include/qapi/qmp/qdict.h
> +++ b/include/qapi/qmp/qdict.h
> @@ -52,6 +52,14 @@ void qdict_destroy_obj(QObject *obj);
> #define qdict_put(qdict, key, obj) \
> qdict_put_obj(qdict, key, QOBJECT(obj))
>
> +/* Helpers for int, bool, and const char*. */
"char *." looks awkward. What about
/* Helpers for int, bool, and const char * */
or
/* Helpers for int, bool, string */
or no comment?
> +#define qdict_put_int(qdict, key, value) \
> + qdict_put(qdict, key, qint_from_int(value))
> +#define qdict_put_bool(qdict, key, value) \
> + qdict_put(qdict, key, qbool_from_bool(value))
> +#define qdict_put_str(qdict, key, value) \
> + qdict_put(qdict, key, qstring_from_str(value))
> +
> /* High level helpers */
> double qdict_get_double(const QDict *qdict, const char *key);
> int64_t qdict_get_int(const QDict *qdict, const char *key);
> diff --git a/include/qapi/qmp/qlist.h b/include/qapi/qmp/qlist.h
> index a84117e..659325a 100644
> --- a/include/qapi/qmp/qlist.h
> +++ b/include/qapi/qmp/qlist.h
> @@ -29,6 +29,14 @@ typedef struct QList {
> #define qlist_append(qlist, obj) \
> qlist_append_obj(qlist, QOBJECT(obj))
>
> +/* Helpers for int, bool, and const char*. */
Likewise.
> +#define qlist_append_int(qlist, value) \
> + qlist_append(qlist, qint_from_int(value))
> +#define qlist_append_bool(qlist, value) \
> + qlist_append(qlist, qbool_from_bool(value))
> +#define qlist_append_str(qlist, value) \
> + qlist_append(qlist, qstring_from_str(value))
> +
> #define QLIST_FOREACH_ENTRY(qlist, var) \
> for ((var) = ((qlist)->head.tqh_first); \
> (var); \
> diff --git a/scripts/coccinelle/qobject.cocci
> b/scripts/coccinelle/qobject.cocci
> index aa899e2..97703a4 100644
> --- a/scripts/coccinelle/qobject.cocci
> +++ b/scripts/coccinelle/qobject.cocci
> @@ -2,12 +2,34 @@
> @@
> expression Obj, Key, E;
> @@
> +(
> - qdict_put_obj(Obj, Key, QOBJECT(E));
> + qdict_put(Obj, Key, E);
> +|
> +- qdict_put(Obj, Key, qint_from_int(E));
> ++ qdict_put_int(Obj, Key, E);
> +|
> +- qdict_put(Obj, Key, qbool_from_bool(E));
> ++ qdict_put_bool(Obj, Key, E);
> +|
> +- qdict_put(Obj, Key, qstring_from_str(E));
> ++ qdict_put_str(Obj, Key, E);
> +)
>
> // Use QList macros where they make sense
> @@
> expression Obj, E;
> @@
> +(
> - qlist_append_obj(Obj, QOBJECT(E));
> + qlist_append(Obj, E);
> +|
> +- qlist_append(Obj, qint_from_int(E));
> ++ qlist_append_int(Obj, E);
> +|
> +- qlist_append(Obj, qbool_from_bool(E));
> ++ qlist_append_bool(Obj, E);
> +|
> +- qlist_append(Obj, qstring_from_str(E));
> ++ qlist_append_str(Obj, E);
> +)
- Re: [Qemu-devel] [PATCH v3 02/13] pci: Reduce scope of error injection, (continued)
- [Qemu-devel] [PATCH v3 04/13] coccinelle: Add script to remove useless QObject casts, Eric Blake, 2017/04/05
- [Qemu-devel] [PATCH v3 03/13] s390x: Drop useless casts, Eric Blake, 2017/04/05
- [Qemu-devel] [PATCH v3 06/13] qobject: Add helper macros for common scalar insertions, Eric Blake, 2017/04/05
- Re: [Qemu-devel] [PATCH v3 06/13] qobject: Add helper macros for common scalar insertions,
Markus Armbruster <=
- [Qemu-devel] [PATCH v3 05/13] qobject: Drop useless QObject casts, Eric Blake, 2017/04/05
- [Qemu-devel] [PATCH v3 08/13] tests: Use simpler QDict/QList scalar insertion macros, Eric Blake, 2017/04/05
- [Qemu-devel] [PATCH v3 11/13] QemuOpts: Simplify qemu_opts_to_qdict(), Eric Blake, 2017/04/05
- [Qemu-devel] [PATCH v3 10/13] block: Simplify bdrv_append_temp_snapshot() logic, Eric Blake, 2017/04/05