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// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
// Copyright (c) 2007, Google Inc.
// All rights reserved.
//
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// modification, are permitted provided that the following conditions are
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//
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// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
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// in the documentation and/or other materials provided with the
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// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// ---
// Author: Craig Silverstein
//
// A few routines that are useful for multiple tests in this directory.
#include "config_for_unittests.h"
#include "tests/testutil.h"
#include <stdlib.h>
#include <functional>
#include <thread>
#include <vector>
struct FunctionAndId {
void (*ptr_to_function)(int);
int id;
};
#if defined(NO_THREADS)
extern "C" void RunThread(void (*fn)()) {
(*fn)();
}
extern "C" void RunManyThreads(void (*fn)(), int count) {
// I guess the best we can do is run fn sequentially, 'count' times
for (int i = 0; i < count; i++)
(*fn)();
}
extern "C" void RunManyThreadsWithId(void (*fn)(int), int count) {
for (int i = 0; i < count; i++)
(*fn)(i); // stacksize doesn't make sense in a non-threaded context
}
#else
extern "C" {
void RunThread(void (*fn)()) {
std::thread{fn}.join();
}
static void RunMany(const std::function<void(int)>& fn, int count) {
std::vector<std::thread> threads;
threads.reserve(count);
for (int i = 0; i < count; i++) {
threads.emplace_back(fn, i);
}
for (auto& t : threads) {
t.join();
}
}
void RunManyThreads(void (*fn)(), int count) {
RunMany([fn] (int dummy) {
fn();
}, count);
}
void RunManyThreadsWithId(void (*fn)(int), int count) {
RunMany(fn, count);
}
}
#endif