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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "tests.h"
#include "job.h"
#include "thread_test_base.hpp"
class Thread_JoinWait_Test : public ThreadTestBase
{
int Main () override;
void SingleThreadJoinWaitMultipleTest(int variant)
{
bool rc=false;
char testName[300];
snprintf(testName, sizeof(testName), "Single Thread Join Wait Multiple Test %d", variant);
TestHeader(testName);
FastOS_ThreadPool pool;
const int testThreads=5;
int lastThreadNum = testThreads-1;
int i;
Job jobs[testThreads];
std::mutex jobMutex;
// The mutex is used to pause the first threads until we have created
// the last one.
jobMutex.lock();
for(i=0; i<lastThreadNum; i++)
{
jobs[i].code = WAIT_FOR_THREAD_TO_FINISH;
jobs[i].mutex = &jobMutex;
jobs[i].ownThread = pool.NewThread(this, static_cast<void *>(&jobs[i]));
rc = (jobs[i].ownThread != nullptr);
Progress(rc, "Creating Thread %d", i+1);
if(!rc)
break;
}
if (rc)
{
jobs[lastThreadNum].code = (((variant & 2) != 0) ? NOP : PRINT_MESSAGE_AND_WAIT3MSEC);
jobs[lastThreadNum].message = strdup("This is the thread that others wait for.");
FastOS_ThreadInterface *lastThread;
lastThread = pool.NewThread(this,
static_cast<void *>
(&jobs[lastThreadNum]));
rc = (lastThread != nullptr);
Progress(rc, "Creating last thread");
if (rc)
{
for(i=0; i<lastThreadNum; i++) {
jobs[i].otherThread = lastThread;
}
}
}
jobMutex.unlock();
if ((variant & 1) != 0)
{
for (i=0; i<lastThreadNum; i++)
{
Progress(true, "Waiting for thread %d to finish using Join()", i+1);
jobs[i].ownThread->Join();
Progress(true, "Thread %d finished.", i+1);
}
}
Progress(true, "Closing pool.");
pool.Close();
Progress(true, "Pool closed.");
PrintSeparator();
}
};
int Thread_JoinWait_Test::Main ()
{
printf("grep for the string '%s' to detect failures.\n\n", failString);
time_t before = time(0);
SingleThreadJoinWaitMultipleTest(0);
{ time_t now = time(0); printf("[%ld seconds]\n", now-before); before = now; }
SingleThreadJoinWaitMultipleTest(1);
{ time_t now = time(0); printf("[%ld seconds]\n", now-before); before = now; }
SingleThreadJoinWaitMultipleTest(2);
{ time_t now = time(0); printf("[%ld seconds]\n", now-before); before = now; }
SingleThreadJoinWaitMultipleTest(3);
{ time_t now = time(0); printf("[%ld seconds]\n", now-before); before = now; }
SingleThreadJoinWaitMultipleTest(2);
{ time_t now = time(0); printf("[%ld seconds]\n", now-before); before = now; }
SingleThreadJoinWaitMultipleTest(1);
{ time_t now = time(0); printf("[%ld seconds]\n", now-before); before = now; }
SingleThreadJoinWaitMultipleTest(0);
{ time_t now = time(0); printf("[%ld seconds]\n", now-before); before = now; }
printf("END OF TEST (%s)\n", _argv[0]);
return allWasOk() ? 0 : 1;
}
int main (int argc, char **argv)
{
Thread_JoinWait_Test app;
setvbuf(stdout, nullptr, _IOLBF, 8192);
return app.Entry(argc, argv);
}
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