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authorVladimír Čunát <vladimir.cunat@nic.cz>2017-04-25 14:56:48 +0200
committerVladimír Čunát <vladimir.cunat@nic.cz>2017-08-01 16:51:04 +0200
commitb7213a6f0e0b2f083d505e79bba8ac4beb96de64 (patch)
tree4c145c161615933645813d34b0c5cc8745082b9d /lib/README.rst
parentqflags: WIP refactor - regex replacements (diff)
downloadknot-resolver-b7213a6f0e0b2f083d505e79bba8ac4beb96de64.tar.xz
knot-resolver-b7213a6f0e0b2f083d505e79bba8ac4beb96de64.zip
qflags: WIP refactor - hand-replace complex cases
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@@ -33,7 +33,7 @@ This is the *driver*. The driver is not meant to know *"how"* the query resolves
On the other side are *layers*. They are responsible for dissecting the packets and informing the driver about the results. For example, a *produce* layer generates query, a *consume* layer validates answer.
-.. tip:: Layers are executed asynchronously by the driver. If you need some asset beforehand, you can signalize the driver using returning state or current query flags. For example, setting a flag ``QUERY_AWAIT_CUT`` forces driver to fetch zone cut information before the packet is consumed; setting a ``QUERY_RESOLVED`` flag makes it pop a query after the current set of layers is finished; returning ``FAIL`` state makes it fail current query.
+.. tip:: Layers are executed asynchronously by the driver. If you need some asset beforehand, you can signalize the driver using returning state or current query flags. For example, setting a flag ``AWAIT_CUT`` forces driver to fetch zone cut information before the packet is consumed; setting a ``RESOLVED`` flag makes it pop a query after the current set of layers is finished; returning ``FAIL`` state makes it fail current query.
Layers can also change course of resolution, for example by appending additional queries.