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authorVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>2019-12-05 20:46:17 +0300
committerMarkus Armbruster <armbru@redhat.com>2019-12-18 08:36:16 +0100
commit49fbc7236dd203f9c6afa87454f603a9236a0b3b (patch)
tree850cd538066053acd9954beac48ddbb1586673f4 /include/qapi
parent33c9642f657193bc478c96f08434ae746397b70e (diff)
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error: make Error **errp const where it is appropriate
Mostly, Error ** is for returning error from the function, so the callee sets it. However these three functions get already filled errp parameter. They don't change the pointer itself, only change the internal state of referenced Error object. So we can make it Error *const * errp, to stress the behavior. It will also help coccinelle script (in future) to distinguish such cases from common errp usage. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20191205174635.18758-4-vsementsov@virtuozzo.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> [Commit message typo fixed] Signed-off-by: Markus Armbruster <armbru@redhat.com>
Diffstat (limited to 'include/qapi')
-rw-r--r--include/qapi/error.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/qapi/error.h b/include/qapi/error.h
index 3f95141..ad5b6e8 100644
--- a/include/qapi/error.h
+++ b/include/qapi/error.h
@@ -233,13 +233,13 @@ void error_propagate_prepend(Error **dst_errp, Error *local_err,
* Prepend some text to @errp's human-readable error message.
* The text is made by formatting @fmt, @ap like vprintf().
*/
-void error_vprepend(Error **errp, const char *fmt, va_list ap);
+void error_vprepend(Error *const *errp, const char *fmt, va_list ap);
/*
* Prepend some text to @errp's human-readable error message.
* The text is made by formatting @fmt, ... like printf().
*/
-void error_prepend(Error **errp, const char *fmt, ...)
+void error_prepend(Error *const *errp, const char *fmt, ...)
GCC_FMT_ATTR(2, 3);
/*
@@ -256,7 +256,7 @@ void error_prepend(Error **errp, const char *fmt, ...)
* May be called multiple times. The resulting hint should end with a
* newline.
*/
-void error_append_hint(Error **errp, const char *fmt, ...)
+void error_append_hint(Error *const *errp, const char *fmt, ...)
GCC_FMT_ATTR(2, 3);
/*