2015-09-25 19:38:45 +02:00
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/*
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* nghttp2 - HTTP/2 C Library
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*
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* Copyright (c) 2015 Tatsuhiro Tsujikawa
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef SHRPX_ROUTER_H
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#define SHRPX_ROUTER_H
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#include "shrpx.h"
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#include <vector>
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#include <memory>
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namespace shrpx {
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struct RNode {
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RNode();
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RNode(const char *s, size_t len, size_t index);
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RNode(RNode &&) = default;
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RNode(const RNode &) = delete;
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RNode &operator=(RNode &&) = default;
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RNode &operator=(const RNode &) = delete;
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// Next RNode, sorted by s[0].
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std::vector<std::unique_ptr<RNode>> next;
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// Stores pointer to the string this node represents. Not
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// NULL-terminated.
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const char *s;
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// Length of |s|
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size_t len;
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// Index of pattern if match ends in this node. Note that we don't
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// store duplicated pattern.
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ssize_t index;
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};
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class Router {
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public:
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Router();
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2016-02-14 10:55:53 +01:00
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// Adds route |pattern| with its |index|.
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bool add_route(const StringRef &pattern, size_t index);
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2015-09-25 19:38:45 +02:00
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// Returns the matched index of pattern. -1 if there is no match.
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2016-02-14 12:48:06 +01:00
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ssize_t match(const StringRef &host, const StringRef &path) const;
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2015-09-25 19:38:45 +02:00
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void add_node(RNode *node, const char *pattern, size_t patlen, size_t index);
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void dump() const;
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private:
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// The root node of Patricia tree. This is special node and its s
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// field is nulptr, and len field is 0.
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RNode root_;
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};
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} // namespace shrpx
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#endif // SHRPX_ROUTER_H
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