Bitcoin Core 31.99.0
P2P Digital Currency
obfuscation.cpp
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1// Copyright (c) The Bitcoin Core developers
2// Distributed under the MIT software license, see the accompanying
3// file COPYING or https://opensource.org/license/mit/.
4
5#include <bench/bench.h>
6#include <random.h>
7#include <util/obfuscation.h>
8
9#include <cstddef>
10#include <span>
11#include <vector>
12
14{
15 FastRandomContext frc{/*fDeterministic=*/true};
16 auto data{frc.randbytes<std::byte>(1024)};
17 const Obfuscation obfuscation{frc.randbytes<Obfuscation::KEY_SIZE>()};
18
19 size_t offset{0};
20 bench.batch(data.size()).unit("byte").run([&] {
21 obfuscation(data, offset++); // mutated differently each time
23 });
24}
25
Fast randomness source.
Definition: random.h:386
static constexpr size_t KEY_SIZE
Definition: obfuscation.h:24
Main entry point to nanobench's benchmarking facility.
Definition: nanobench.h:649
Bench & run(char const *benchmarkName, Op &&op)
Repeatedly calls op() based on the configuration, and performs measurements.
Definition: nanobench.h:1308
Bench & batch(T b) noexcept
Sets the batch size.
Definition: nanobench.h:1332
void doNotOptimizeAway(Arg &&arg)
Makes sure none of the given arguments are optimized away by the compiler.
Definition: nanobench.h:1353
BENCHMARK(ObfuscationBench)
static void ObfuscationBench(benchmark::Bench &bench)
Definition: obfuscation.cpp:13