Merge pull request #4849 from ReinUsesLisp/fix-fiber-test

tests: Fix data race in fibers test
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LC 2020-10-28 04:26:10 -04:00 committed by GitHub
commit 1fd22823bc
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@ -6,18 +6,40 @@
#include <cstdlib>
#include <functional>
#include <memory>
#include <mutex>
#include <stdexcept>
#include <thread>
#include <unordered_map>
#include <vector>
#include <catch2/catch.hpp>
#include <math.h>
#include "common/common_types.h"
#include "common/fiber.h"
#include "common/spin_lock.h"
namespace Common {
class ThreadIds {
public:
void Register(u32 id) {
const auto thread_id = std::this_thread::get_id();
std::scoped_lock lock{mutex};
if (ids.contains(thread_id)) {
throw std::logic_error{"Registering the same thread twice"};
}
ids.emplace(thread_id, id);
}
[[nodiscard]] u32 Get() const {
std::scoped_lock lock{mutex};
return ids.at(std::this_thread::get_id());
}
private:
mutable std::mutex mutex;
std::unordered_map<std::thread::id, u32> ids;
};
class TestControl1 {
public:
TestControl1() = default;
@ -26,7 +48,7 @@ public:
void ExecuteThread(u32 id);
std::unordered_map<std::thread::id, u32> ids;
ThreadIds thread_ids;
std::vector<std::shared_ptr<Common::Fiber>> thread_fibers;
std::vector<std::shared_ptr<Common::Fiber>> work_fibers;
std::vector<u32> items;
@ -39,8 +61,7 @@ static void WorkControl1(void* control) {
}
void TestControl1::DoWork() {
std::thread::id this_id = std::this_thread::get_id();
u32 id = ids[this_id];
const u32 id = thread_ids.Get();
u32 value = items[id];
for (u32 i = 0; i < id; i++) {
value++;
@ -50,8 +71,7 @@ void TestControl1::DoWork() {
}
void TestControl1::ExecuteThread(u32 id) {
std::thread::id this_id = std::this_thread::get_id();
ids[this_id] = id;
thread_ids.Register(id);
auto thread_fiber = Fiber::ThreadToFiber();
thread_fibers[id] = thread_fiber;
work_fibers[id] = std::make_shared<Fiber>(std::function<void(void*)>{WorkControl1}, this);
@ -98,8 +118,7 @@ public:
value1 += i;
}
Fiber::YieldTo(fiber1, fiber3);
std::thread::id this_id = std::this_thread::get_id();
u32 id = ids[this_id];
const u32 id = thread_ids.Get();
assert1 = id == 1;
value2 += 5000;
Fiber::YieldTo(fiber1, thread_fibers[id]);
@ -115,8 +134,7 @@ public:
}
void DoWork3() {
std::thread::id this_id = std::this_thread::get_id();
u32 id = ids[this_id];
const u32 id = thread_ids.Get();
assert2 = id == 0;
value1 += 1000;
Fiber::YieldTo(fiber3, thread_fibers[id]);
@ -125,14 +143,12 @@ public:
void ExecuteThread(u32 id);
void CallFiber1() {
std::thread::id this_id = std::this_thread::get_id();
u32 id = ids[this_id];
const u32 id = thread_ids.Get();
Fiber::YieldTo(thread_fibers[id], fiber1);
}
void CallFiber2() {
std::thread::id this_id = std::this_thread::get_id();
u32 id = ids[this_id];
const u32 id = thread_ids.Get();
Fiber::YieldTo(thread_fibers[id], fiber2);
}
@ -145,7 +161,7 @@ public:
u32 value2{};
std::atomic<bool> trap{true};
std::atomic<bool> trap2{true};
std::unordered_map<std::thread::id, u32> ids;
ThreadIds thread_ids;
std::vector<std::shared_ptr<Common::Fiber>> thread_fibers;
std::shared_ptr<Common::Fiber> fiber1;
std::shared_ptr<Common::Fiber> fiber2;
@ -168,15 +184,13 @@ static void WorkControl2_3(void* control) {
}
void TestControl2::ExecuteThread(u32 id) {
std::thread::id this_id = std::this_thread::get_id();
ids[this_id] = id;
thread_ids.Register(id);
auto thread_fiber = Fiber::ThreadToFiber();
thread_fibers[id] = thread_fiber;
}
void TestControl2::Exit() {
std::thread::id this_id = std::this_thread::get_id();
u32 id = ids[this_id];
const u32 id = thread_ids.Get();
thread_fibers[id]->Exit();
}
@ -228,24 +242,21 @@ public:
void DoWork1() {
value1 += 1;
Fiber::YieldTo(fiber1, fiber2);
std::thread::id this_id = std::this_thread::get_id();
u32 id = ids[this_id];
const u32 id = thread_ids.Get();
value3 += 1;
Fiber::YieldTo(fiber1, thread_fibers[id]);
}
void DoWork2() {
value2 += 1;
std::thread::id this_id = std::this_thread::get_id();
u32 id = ids[this_id];
const u32 id = thread_ids.Get();
Fiber::YieldTo(fiber2, thread_fibers[id]);
}
void ExecuteThread(u32 id);
void CallFiber1() {
std::thread::id this_id = std::this_thread::get_id();
u32 id = ids[this_id];
const u32 id = thread_ids.Get();
Fiber::YieldTo(thread_fibers[id], fiber1);
}
@ -254,7 +265,7 @@ public:
u32 value1{};
u32 value2{};
u32 value3{};
std::unordered_map<std::thread::id, u32> ids;
ThreadIds thread_ids;
std::vector<std::shared_ptr<Common::Fiber>> thread_fibers;
std::shared_ptr<Common::Fiber> fiber1;
std::shared_ptr<Common::Fiber> fiber2;
@ -271,15 +282,13 @@ static void WorkControl3_2(void* control) {
}
void TestControl3::ExecuteThread(u32 id) {
std::thread::id this_id = std::this_thread::get_id();
ids[this_id] = id;
thread_ids.Register(id);
auto thread_fiber = Fiber::ThreadToFiber();
thread_fibers[id] = thread_fiber;
}
void TestControl3::Exit() {
std::thread::id this_id = std::this_thread::get_id();
u32 id = ids[this_id];
const u32 id = thread_ids.Get();
thread_fibers[id]->Exit();
}