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https://github.com/facebook/sapling.git
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228e6a901e
Summary: Moves cstore to hgext/extlib/ and makes it build. Test Plan: make local && run-tests.py Reviewers: #mercurial Differential Revision: https://phabricator.intern.facebook.com/D6678852
57 lines
1.3 KiB
C++
57 lines
1.3 KiB
C++
// Copyright (c) 2004-present, Facebook, Inc.
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// All Rights Reserved.
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//
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// This software may be used and distributed according to the terms of the
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// GNU General Public License version 2 or any later version.
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// key.h - c++ declarations for a key to pack data
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// no-check-code
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#ifndef FBHGEXT_CSTORE_KEY_H
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#define FBHGEXT_CSTORE_KEY_H
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#include <cstring>
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#include <stdexcept>
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#include <vector>
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#include "lib/clib/convert.h"
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/* Represents a key into the Mercurial store. Each key is a (name, node) pair,
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* though store implementations can choose to ignore the name in some cases. */
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struct Key {
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/* The filename portion of the key. */
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std::string name;
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/* The byte node portion of the key. */
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char node[BIN_NODE_SIZE];
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Key() :
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node() {}
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Key(const char *name, size_t namelen, const char *node, size_t nodelen) :
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name(name, namelen) {
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if (nodelen != BIN_NODE_SIZE) {
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throw std::logic_error("invalid node length");
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}
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memcpy(this->node, node, BIN_NODE_SIZE);
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}
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};
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class MissingKeyError : public std::runtime_error {
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public:
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MissingKeyError(const char *what_arg) :
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std::runtime_error(what_arg) {
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}
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};
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class KeyIterator {
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protected:
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KeyIterator() {}
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public:
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virtual ~KeyIterator() = default;
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virtual Key *next() = 0;
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};
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#endif // FBHGEXT_CSTORE_KEY_H
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