contrib/fuzz/fuzzutil.h
author Pierre-Yves David <pierre-yves.david@octobus.net>
Thu, 07 Mar 2024 04:15:23 +0100
changeset 51536 718f28ea3af4
parent 43615 6f5c352f41b6
permissions -rw-r--r--
branchcache: add a "pure topological head" fast path In a narrow but actually quick common case, all topological heads are all on the same branch and all open. In this case, computing the branch map is very simple. We can quickly detect situation where this situation will not change. So we update the V3 format to be able to express this situation and upgrade the update code to detect we remains in that mode. The branch cache is populated with the actual value when the branch map is accessed, but the update_disk method can do the update without needing to populate it.
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#ifndef CONTRIB_FUZZ_FUZZUTIL_H
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#define CONTRIB_FUZZ_FUZZUTIL_H
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#include <iostream>
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#include <memory>
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#include <stdint.h>
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/* Try and use std::optional, but failing that assume we'll have a
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 * workable https://abseil.io/ install on the include path to get
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 * their backport of std::optional. */
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#ifdef __has_include
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#if __has_include(<optional>) && __cplusplus >= 201703L
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#include <optional>
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#define CONTRIB_FUZZ_HAVE_STD_OPTIONAL
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#endif
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#endif
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#ifdef CONTRIB_FUZZ_HAVE_STD_OPTIONAL
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namespace contrib
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{
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using std::nullopt;
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using std::optional;
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} /* namespace contrib */
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#else
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#include "third_party/absl/types/optional.h"
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namespace contrib
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{
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using absl::nullopt;
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using absl::optional;
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} /* namespace contrib */
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#endif
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/* set DEBUG to 1 for a few debugging prints, or 2 for a lot */
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#define DEBUG 0
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#define LOG(level)                                                             \
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	if (level <= DEBUG)                                                    \
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	std::cout
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#endif /* CONTRIB_FUZZ_FUZZUTIL_H */