error: Improve documentation of error_append_hint()

Suggested-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1502359588-29451-1-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Halil Pasic <pasic@linux.vnet.ibm.com>
This commit is contained in:
Markus Armbruster 2017-08-10 12:06:28 +02:00
parent 20e0d439a6
commit 508de4780c
1 changed files with 8 additions and 0 deletions

View File

@ -230,6 +230,12 @@ void error_prepend(Error **errp, const char *fmt, ...)
/*
* Append a printf-style human-readable explanation to an existing error.
* If the error is later reported to a human user with
* error_report_err() or warn_report_err(), the hints will be shown,
* too. If it's reported via QMP, the hints will be ignored.
* Intended use is adding helpful hints on the human user interface,
* e.g. a list of valid values. It's not for clarifying a confusing
* error message.
* @errp may be NULL, but not &error_fatal or &error_abort.
* Trivially the case if you call it only after error_setg() or
* error_propagate().
@ -267,11 +273,13 @@ void error_free_or_abort(Error **errp);
/*
* Convenience function to warn_report() and free @err.
* The report includes hints added with error_append_hint().
*/
void warn_report_err(Error *err);
/*
* Convenience function to error_report() and free @err.
* The report includes hints added with error_append_hint().
*/
void error_report_err(Error *err);