Bitcoin Core  27.99.0
P2P Digital Currency
xor.cpp
Go to the documentation of this file.
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 
7 #include <random.h>
8 #include <streams.h>
9 
10 #include <cstddef>
11 #include <vector>
12 
13 static void Xor(benchmark::Bench& bench)
14 {
15  FastRandomContext frc{/*fDeterministic=*/true};
16  auto data{frc.randbytes<std::byte>(1024)};
17  auto key{frc.randbytes<std::byte>(31)};
18 
19  bench.batch(data.size()).unit("byte").run([&] {
20  util::Xor(data, key);
21  });
22 }
23 
Fast randomness source.
Definition: random.h:145
std::vector< B > randbytes(size_t len)
Generate random bytes.
Definition: random.cpp:671
Main entry point to nanobench's benchmarking facility.
Definition: nanobench.h:627
Bench & run(char const *benchmarkName, Op &&op)
Repeatedly calls op() based on the configuration, and performs measurements.
Definition: nanobench.h:1234
Bench & batch(T b) noexcept
Sets the batch size.
Definition: nanobench.h:1258
@ HIGH
Definition: bench.h:47
void Xor(Span< std::byte > write, Span< const std::byte > key, size_t key_offset=0)
Definition: streams.h:28
BENCHMARK(Xor, benchmark::PriorityLevel::HIGH)
static void Xor(benchmark::Bench &bench)
Definition: xor.cpp:13