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// Copyright 2009 The RE2 Authors. All Rights Reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#ifndef UTIL_BENCHMARK_H_
#define UTIL_BENCHMARK_H_
namespace testing {
struct Benchmark {
const char* name;
void (*fn)(int);
void (*fnr)(int, int);
int lo;
int hi;
int threadlo;
int threadhi;
void Register();
Benchmark(const char* name, void (*f)(int)) { Clear(name); fn = f; Register(); }
Benchmark(const char* name, void (*f)(int, int), int l, int h) { Clear(name); fnr = f; lo = l; hi = h; Register(); }
void Clear(const char* n) { name = n; fn = 0; fnr = 0; lo = 0; hi = 0; threadlo = 0; threadhi = 0; }
Benchmark* ThreadRange(int lo, int hi) { threadlo = lo; threadhi = hi; return this; }
};
} // namespace testing
void SetBenchmarkBytesProcessed(long long);
void StopBenchmarkTiming();
void StartBenchmarkTiming();
void BenchmarkMemoryUsage();
void SetBenchmarkItemsProcessed(int);
int NumCPUs();
#define BENCHMARK(f) \
::testing::Benchmark* _benchmark_##f = (new ::testing::Benchmark(#f, f))
#define BENCHMARK_RANGE(f, lo, hi) \
::testing::Benchmark* _benchmark_##f = \
(new ::testing::Benchmark(#f, f, lo, hi))
#endif // UTIL_BENCHMARK_H_
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