gecko/xpcom/tests/gtest/TestThreads.cpp

165 lines
4.1 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsThreadUtils.h"
#include <stdio.h>
#include <stdlib.h>
#include "nspr.h"
#include "nsCOMPtr.h"
#include "nsIServiceManager.h"
#include "nsXPCOM.h"
#include "gtest/gtest.h"
class nsRunner final : public nsIRunnable {
~nsRunner() {}
public:
NS_DECL_THREADSAFE_ISUPPORTS
NS_IMETHOD Run() override {
nsCOMPtr<nsIThread> thread;
nsresult rv = NS_GetCurrentThread(getter_AddRefs(thread));
EXPECT_TRUE(NS_SUCCEEDED(rv));
printf("running %d on thread %p\n", mNum, (void *)thread.get());
// if we don't do something slow, we'll never see the other
// worker threads run
PR_Sleep(PR_MillisecondsToInterval(100));
return rv;
}
explicit nsRunner(int num) : mNum(num) {
}
protected:
int mNum;
};
NS_IMPL_ISUPPORTS(nsRunner, nsIRunnable)
TEST(Threads, Main)
{
nsresult rv;
nsCOMPtr<nsIRunnable> event = new nsRunner(0);
EXPECT_TRUE(event);
nsCOMPtr<nsIThread> runner;
rv = NS_NewThread(getter_AddRefs(runner), event);
EXPECT_TRUE(NS_SUCCEEDED(rv));
nsCOMPtr<nsIThread> thread;
rv = NS_GetCurrentThread(getter_AddRefs(thread));
EXPECT_TRUE(NS_SUCCEEDED(rv));
rv = runner->Shutdown(); // wait for the runner to die before quitting
EXPECT_TRUE(NS_SUCCEEDED(rv));
PR_Sleep(PR_MillisecondsToInterval(100)); // hopefully the runner will quit here
}
class nsStressRunner final : public nsIRunnable {
public:
NS_DECL_THREADSAFE_ISUPPORTS
NS_IMETHOD Run() override {
EXPECT_FALSE(mWasRun);
mWasRun = true;
PR_Sleep(1);
if (!PR_AtomicDecrement(&gNum)) {
printf(" last thread was %d\n", mNum);
}
return NS_OK;
}
explicit nsStressRunner(int num) : mNum(num), mWasRun(false) {
PR_AtomicIncrement(&gNum);
}
static int32_t GetGlobalCount() {return gNum;}
private:
~nsStressRunner() {
EXPECT_TRUE(mWasRun);
}
protected:
static int32_t gNum;
int32_t mNum;
bool mWasRun;
};
int32_t nsStressRunner::gNum = 0;
NS_IMPL_ISUPPORTS(nsStressRunner, nsIRunnable)
TEST(Threads, Stress)
{
const int loops = 1000;
const int threads = 50;
for (int i = 0; i < loops; i++) {
printf("Loop %d of %d\n", i+1, loops);
int k;
nsIThread** array = new nsIThread*[threads];
EXPECT_EQ(nsStressRunner::GetGlobalCount(), 0);
for (k = 0; k < threads; k++) {
nsCOMPtr<nsIThread> t;
nsresult rv = NS_NewThread(getter_AddRefs(t), new nsStressRunner(k));
EXPECT_TRUE(NS_SUCCEEDED(rv));
NS_ADDREF(array[k] = t);
}
for (k = threads-1; k >= 0; k--) {
array[k]->Shutdown();
NS_RELEASE(array[k]);
}
delete [] array;
}
}
static void threadProc(void *arg)
{
// printf(" running thread %d\n", (int) arg);
PR_Sleep(1);
EXPECT_EQ(PR_JOINABLE_THREAD, PR_GetThreadState(PR_GetCurrentThread()));
}
TEST(Threads, StressNSPR)
{
const int loops = 1000;
const int threads = 50;
for (int i = 0; i < loops; i++) {
printf("Loop %d of %d\n", i+1, loops);
intptr_t k;
PRThread** array = new PRThread*[threads];
for (k = 0; k < threads; k++) {
array[k] = PR_CreateThread(PR_USER_THREAD,
threadProc, (void*) k,
PR_PRIORITY_NORMAL,
PR_GLOBAL_THREAD,
PR_JOINABLE_THREAD,
0);
EXPECT_TRUE(array[k]);
}
for (k = 0; k < threads; k++) {
EXPECT_EQ(PR_JOINABLE_THREAD, PR_GetThreadState(array[k]));
}
for (k = threads-1; k >= 0; k--) {
PR_JoinThread(array[k]);
}
delete [] array;
}
}