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#include "stdafx.h"
#include "OS/Thread.h"
#include "OS/ThreadGroup.h"
#include "OS/Condition.h"
#include "Tracker.h"
using namespace os;
static int var = 0;
static THREAD int local = 0;
static Semaphore stopSema(0);
static void otherThread() {
var++;
local++;
Sleep(10);
var++;
local++;
assert(local == 2);
stopSema.up();
}
BEGIN_TEST(ThreadTest, OS) {
ThreadGroup g;
var = 0;
local = 1;
{
os::Thread t = os::Thread::spawn(util::simpleVoidFn(otherThread), g);
CHECK_NEQ(t, os::Thread::current());
}
Sleep(30);
stopSema.down();
CHECK_EQ(var, 2);
{
os::Thread t = os::Thread::spawn(util::simpleVoidFn(otherThread), g);
CHECK_NEQ(t, os::Thread::current());
}
stopSema.down();
CHECK_EQ(var, 4);
CHECK_EQ(local, 1);
} END_TEST
static void setVar() {
var = 1;
stopSema.up();
}
static void uthreadInterop() {
UThread::spawn(util::simpleVoidFn(&setVar));
// Note: we're not running leave here!
}
static void setVar2() {
// Keep a reference, to confuse the runtime a bit.
os::Thread t = os::Thread::current();
UThread::leave();
var = 2;
stopSema.up();
}
static void uthreadInterop2() {
UThread::spawn(util::simpleVoidFn(&setVar2));
UThread::leave();
}
struct TInterop {
os::Future<int> result;
void run() {
result.post(42);
}
};
BEGIN_TEST(UThreadInterop, OS) {
ThreadGroup g;
var = 0;
os::Thread::spawn(util::simpleVoidFn(uthreadInterop), g);
stopSema.down();
CHECK_EQ(var, 1);
var = 0;
os::Thread::spawn(util::simpleVoidFn(uthreadInterop2), g);
stopSema.down();
CHECK_EQ(var, 2);
var = 0;
os::Thread t = os::Thread::spawn(util::Fn<void, void>(), g);
Sleep(20); // Make sure 't' enters the condition waiting.
UThread::spawn(util::simpleVoidFn(setVar), &t);
stopSema.down();
CHECK_EQ(var, 1);
// Check so that futures work with regular semaphores as well.
{
TInterop i;
os::Thread::spawn(util::memberVoidFn(&i, &TInterop::run), g);
CHECK_EQ(i.result.result(), 42);
// Multiple times should also work.
CHECK_EQ(i.result.result(), 42);
}
} END_TEST
struct Cond {
// Condition variable to use for testing.
Condition c;
// Semaphore to start the other thread.
Semaphore start;
// Semaphore to indicate an iteration is done.
Semaphore done;
// Shared variable to use for results.
nat count;
Cond() : start(0), done(0), count(0) {}
// Run the other thread.
void run() {
for (nat i = 0; i < 10; i++) {
start.down();
c.wait();
count++;
done.up();
}
}
};
BEGIN_TEST(ConditionTest, OS) {
Cond z;
ThreadGroup g;
os::Thread::spawn(util::memberVoidFn(&z, &Cond::run), g);
z.start.up();
Sleep(10); // Let the other thread run into c.wait()
z.c.signal();
z.done.down();
CHECK_EQ(z.count, 1);
z.c.signal();
z.start.up();
z.done.down();
CHECK_EQ(z.count, 2);
z.c.signal();
z.c.signal();
z.start.up();
z.done.down();
Sleep(10); // If it runs multiple times, make sure it is complete.
CHECK_EQ(z.count, 3);
// Stress test the rest of the times...
for (nat i = 4; i <= 10; i++) {
z.start.up();
z.c.signal();
z.done.down();
CHECK_EQ(z.count, i);
}
// Now z.count is 10, and the other thread will terminate eventually.
} END_TEST;
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