mirror of
https://github.com/facebook/sapling.git
synced 2024-10-07 23:38:50 +03:00
4a59f3b701
Summary: I sync'd a copy of this code into the eden repository. I had to adjust a couple of include paths to get the code to compile correctly in the hermetic build environment that is in use there. In addition, our linter suite over there found a couple of C++ nits to be fixed up. Test Plan: make local Reviewers: simpkins, ikostia, simonfar, durham Reviewed By: durham Subscribers: net-systems-diffs@fb.com, mjpieters Differential Revision: https://phabricator.intern.facebook.com/D4879285 Signature: t1:4879285:1492039044:8cb1e033e35ee568806de94dda3d2f6f8e78f5cb
57 lines
1.2 KiB
C++
57 lines
1.2 KiB
C++
// key.h - c++ declarations for a key to pack data
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//
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// Copyright 2017 Facebook, Inc.
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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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//
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// no-check-code
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#ifndef KEY_H
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#define KEY_H
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#include <cstring>
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#include <vector>
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#include <stdexcept>
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#include "../ctreemanifest/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 //KEY_H
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