void test_mutex_timed_lock(P &sm)
{
{
shared_val = 0;
data<P> m1(1, sm, 3);
data<P> m2(2, sm, 3);
// Locker one launches, holds the lock for 3*BaseSeconds seconds.
boost::thread tm1(thread_adapter<P>(&timed_wait_and_sleep, &m1, sm));
//Wait 1*BaseSeconds
boost::thread::sleep(xsecs(1*BaseSeconds));
// Locker two launches, holds the lock for 3*BaseSeconds seconds.
boost::thread tm2(thread_adapter<P>(&timed_wait_and_sleep, &m2, sm));
//Wait completion
tm1.join();
tm2.join();
//Both should succeed locking
assert(m1.m_value == 1);
assert(m2.m_value == 2);
}
{
shared_val = 0;
data<P> m1(1, sm, 3);
data<P> m2(2, sm, 3);
// Locker one launches, holds the lock for 3*BaseSeconds seconds.
boost::thread tm1(thread_adapter<P>(&timed_wait_and_sleep, &m1, sm));
//Wait 1*BaseSeconds
boost::thread::sleep(xsecs(1*BaseSeconds));
// Locker two launches, holds the lock for 3*BaseSeconds seconds.
boost::thread tm2(thread_adapter<P>(&timed_wait_and_sleep, &m2, sm));
//Wait completion
tm1.join();
tm2.join();
//Both should succeed locking
assert(m1.m_value == 1);
assert(m2.m_value == 2);
}
}
void test_try_sharable_mutex()
{
SM mtx;
data<SM> s1(1);
data<SM> e1(2);
data<SM> e2(3);
// We start with some specialized tests for "try" behavior
shared_val = 0;
// Writer one launches, holds the lock for 3*BaseSeconds seconds.
boost::thread tw1(thread_adapter<SM>(try_exclusive,&e1,mtx));
// Reader one launches, "clearly" after writer #1 holds the lock
// and before it releases the lock.
boost::thread::sleep(xsecs(1*BaseSeconds));
boost::thread thr1(thread_adapter<SM>(try_shared,&s1,mtx));
// Writer two launches in the same timeframe.
boost::thread tw2(thread_adapter<SM>(try_exclusive,&e2,mtx));
tw2.join();
thr1.join();
tw1.join();
BOOST_INTERPROCES_CHECK(e1.m_value == 10);
BOOST_INTERPROCES_CHECK(s1.m_value == -1); // Try would return w/o waiting
BOOST_INTERPROCES_CHECK(e2.m_value == -1); // Try would return w/o waiting
}
void wait_and_sleep(void *arg, P &sm)
{
data<P> *pdata = static_cast<data<P>*>(arg);
boost::interprocess::scoped_lock<P> l(sm);
boost::thread::sleep(xsecs(3*BaseSeconds));
++shared_val;
pdata->m_value = shared_val;
}
void plain_exclusive(void *arg, SM &sm)
{
data<SM> *pdata = static_cast<data<SM>*>(arg);
boost::interprocess::scoped_lock<SM> l(sm);
boost::thread::sleep(xsecs(3*BaseSeconds));
shared_val += 10;
pdata->m_value = shared_val;
}
void plain_shared(void *arg, SM &sm)
{
data<SM> *pdata = static_cast<data<SM>*>(arg);
boost::interprocess::sharable_lock<SM> l(sm);
if(pdata->m_secs){
boost::thread::sleep(xsecs(pdata->m_secs*BaseSeconds));
}
pdata->m_value = shared_val;
}
void try_exclusive(void *arg, SM &sm)
{
data<SM> *pdata = static_cast<data<SM>*>(arg);
boost::interprocess::scoped_lock<SM> l(sm, boost::interprocess::defer_lock);
if (l.try_lock()){
boost::thread::sleep(xsecs(3*BaseSeconds));
shared_val += 10;
pdata->m_value = shared_val;
}
}
void timed_wait_and_sleep(void *arg, P &sm)
{
data<P> *pdata = static_cast<data<P>*>(arg);
boost::posix_time::ptime pt(delay(pdata->m_secs));
boost::interprocess::scoped_lock<P>
l (sm, boost::interprocess::defer_lock);
if (l.timed_lock(pt)){
boost::thread::sleep(xsecs(3*BaseSeconds));
++shared_val;
pdata->m_value = shared_val;
}
}
void timed_shared(void *arg, SM &sm)
{
data<SM> *pdata = static_cast<data<SM>*>(arg);
boost::posix_time::ptime pt(delay(pdata->m_secs));
boost::interprocess::sharable_lock<SM>
l(sm, boost::interprocess::defer_lock);
if (l.timed_lock(pt)){
if(pdata->m_secs){
boost::thread::sleep(xsecs(pdata->m_secs*BaseSeconds));
}
pdata->m_value = shared_val;
}
}
void test_timed_sharable_mutex()
{
SM m1, m2, m3, m4;
SM *pm1, *pm2, *pm3, *pm4;
if(SameObject){
pm1 = pm2 = pm3 = pm4 = &m1;
}
else{
pm1 = &m1;
pm2 = &m2;
pm3 = &m3;
pm4 = &m4;
}
data<SM> s1(1,1*BaseSeconds);
data<SM> s2(2,3*BaseSeconds);
data<SM> e1(3,3*BaseSeconds);
data<SM> e2(4,1*BaseSeconds);
// We begin with some specialized tests for "timed" behavior
shared_val = 0;
// Writer one will hold the lock for 3*BaseSeconds seconds.
boost::thread tw1(thread_adapter<SM>(timed_exclusive,&e1,*pm1));
boost::thread::sleep(xsecs(1*BaseSeconds));
// Writer two will "clearly" try for the lock after the readers
// have tried for it. Writer will wait up 1*BaseSeconds seconds for the lock.
// This write will fail.
boost::thread tw2(thread_adapter<SM>(timed_exclusive,&e2,*pm2));
// Readers one and two will "clearly" try for the lock after writer
// one already holds it. 1st reader will wait 1*BaseSeconds seconds, and will fail
// to get the lock. 2nd reader will wait 3*BaseSeconds seconds, and will get
// the lock.
boost::thread thr1(thread_adapter<SM>(timed_shared,&s1,*pm3));
boost::thread thr2(thread_adapter<SM>(timed_shared,&s2,*pm4));
tw1.join();
thr1.join();
thr2.join();
tw2.join();
assert(e1.m_value == 10);
assert(s1.m_value == -1);
assert(s2.m_value == 10);
assert(e2.m_value == -1);
}
void test_try_sharable_mutex()
{
SM m1, m2, m3;
SM *pm1, *pm2, *pm3;
if(SameObject){
pm1 = pm2 = pm3 = &m1;
}
else{
pm1 = &m1;
pm2 = &m2;
pm3 = &m3;
}
data<SM> s1(1);
data<SM> e1(2);
data<SM> e2(3);
// We start with some specialized tests for "try" behavior
shared_val = 0;
// Writer one launches, holds the lock for 3*BaseSeconds seconds.
boost::thread tw1(thread_adapter<SM>(try_exclusive,&e1,*pm1));
// Reader one launches, "clearly" after writer #1 holds the lock
// and before it releases the lock.
boost::thread::sleep(xsecs(1*BaseSeconds));
boost::thread thr1(thread_adapter<SM>(try_shared,&s1,*pm2));
// Writer two launches in the same timeframe.
boost::thread tw2(thread_adapter<SM>(try_exclusive,&e2,*pm3));
tw2.join();
thr1.join();
tw1.join();
assert(e1.m_value == 10);
assert(s1.m_value == -1); // Try would return w/o waiting
assert(e2.m_value == -1); // Try would return w/o waiting
}
void test_timed_sharable_mutex()
{
SM mtx;
data<SM> s1(1,1*BaseSeconds);
data<SM> s2(2,3*BaseSeconds);
data<SM> e1(3,3*BaseSeconds);
data<SM> e2(4,1*BaseSeconds);
// We begin with some specialized tests for "timed" behavior
shared_val = 0;
// Writer one will hold the lock for 3*BaseSeconds seconds.
boost::thread tw1(thread_adapter<SM>(timed_exclusive,&e1,mtx));
boost::thread::sleep(xsecs(1*BaseSeconds));
// Writer two will "clearly" try for the lock after the readers
// have tried for it. Writer will wait up 1*BaseSeconds seconds for the lock.
// This write will fail.
boost::thread tw2(thread_adapter<SM>(timed_exclusive,&e2,mtx));
// Readers one and two will "clearly" try for the lock after writer
// one already holds it. 1st reader will wait 1*BaseSeconds seconds, and will fail
// to get the lock. 2nd reader will wait 3*BaseSeconds seconds, and will get
// the lock.
boost::thread thr1(thread_adapter<SM>(timed_shared,&s1,mtx));
boost::thread thr2(thread_adapter<SM>(timed_shared,&s2,mtx));
tw1.join();
thr1.join();
thr2.join();
tw2.join();
BOOST_INTERPROCES_CHECK(e1.m_value == 10);
BOOST_INTERPROCES_CHECK(s1.m_value == -1);
BOOST_INTERPROCES_CHECK(s2.m_value == 10);
BOOST_INTERPROCES_CHECK(e2.m_value == -1);
}
void test_plain_sharable_mutex()
{
{
shared_val = 0;
SM mtx;
data<SM> s1(1);
data<SM> s2(2);
data<SM> e1(1);
data<SM> e2(2);
// Writer one launches, holds the lock for 3*BaseSeconds seconds.
boost::thread tw1(thread_adapter<SM>(plain_exclusive, &e1, mtx));
// Writer two launches, tries to grab the lock, "clearly"
// after Writer one will already be holding it.
boost::thread::sleep(xsecs(1*BaseSeconds));
boost::thread tw2(thread_adapter<SM>(plain_exclusive, &e2, mtx));
// Reader one launches, "clearly" after writer two, and "clearly"
// while writer 1 still holds the lock
boost::thread::sleep(xsecs(1*BaseSeconds));
boost::thread thr1(thread_adapter<SM>(plain_shared,&s1, mtx));
boost::thread thr2(thread_adapter<SM>(plain_shared,&s2, mtx));
thr2.join();
thr1.join();
tw2.join();
tw1.join();
//We can only assure that the writer will be first
BOOST_INTERPROCES_CHECK(e1.m_value == 10);
//A that we will execute all
BOOST_INTERPROCES_CHECK(s1.m_value == 20 || s2.m_value == 20 || e2.m_value == 20);
}
{
shared_val = 0;
SM mtx;
data<SM> s1(1, 3);
data<SM> s2(2, 3);
data<SM> e1(1);
data<SM> e2(2);
//We launch 2 readers, that will block for 3*BaseTime seconds
boost::thread thr1(thread_adapter<SM>(plain_shared,&s1, mtx));
boost::thread thr2(thread_adapter<SM>(plain_shared,&s2, mtx));
//Make sure they try to hold the sharable lock
boost::thread::sleep(xsecs(1*BaseSeconds));
// We launch two writers, that should block until the readers end
boost::thread tw1(thread_adapter<SM>(plain_exclusive,&e1, mtx));
boost::thread tw2(thread_adapter<SM>(plain_exclusive,&e2, mtx));
thr2.join();
thr1.join();
tw2.join();
tw1.join();
//We can only assure that the shared will finish first...
BOOST_INTERPROCES_CHECK(s1.m_value == 0 || s2.m_value == 0);
//...and writers will be mutually excluded after readers
BOOST_INTERPROCES_CHECK((e1.m_value == 10 && e2.m_value == 20) ||
(e1.m_value == 20 && e2.m_value == 10) );
}
}
void test_plain_sharable_mutex()
{
{
shared_val = 0;
SM m1, m2, m3, m4;
SM *pm1, *pm2, *pm3, *pm4;
if(SameObject){
pm1 = pm2 = pm3 = pm4 = &m1;
}
else{
pm1 = &m1;
pm2 = &m2;
pm3 = &m3;
pm4 = &m4;
}
data<SM> s1(1);
data<SM> s2(2);
data<SM> e1(1);
data<SM> e2(2);
// Writer one launches, holds the lock for 3*BaseSeconds seconds.
boost::thread tw1(thread_adapter<SM>(plain_exclusive, &e1, *pm1));
// Writer two launches, tries to grab the lock, "clearly"
// after Writer one will already be holding it.
boost::thread::sleep(xsecs(1*BaseSeconds));
boost::thread tw2(thread_adapter<SM>(plain_exclusive, &e2, *pm2));
// Reader one launches, "clearly" after writer two, and "clearly"
// while writer 1 still holds the lock
boost::thread::sleep(xsecs(1*BaseSeconds));
boost::thread thr1(thread_adapter<SM>(plain_shared,&s1, *pm3));
boost::thread thr2(thread_adapter<SM>(plain_shared,&s2, *pm4));
thr2.join();
thr1.join();
tw2.join();
tw1.join();
//We can only assure that the writer will be first
assert(e1.m_value == 10);
//A that we will execute all
assert(s1.m_value == 20 || s2.m_value == 20 || e2.m_value == 20);
}
{
shared_val = 0;
SM m1, m2, m3, m4;
SM *pm1, *pm2, *pm3, *pm4;
if(SameObject){
pm1 = pm2 = pm3 = pm4 = &m1;
}
else{
pm1 = &m1;
pm2 = &m2;
pm3 = &m3;
pm4 = &m4;
}
data<SM> s1(1, 3);
data<SM> s2(2, 3);
data<SM> e1(1);
data<SM> e2(2);
//We launch 2 readers, that will block for 3*BaseTime seconds
boost::thread thr1(thread_adapter<SM>(plain_shared,&s1,*pm1));
boost::thread thr2(thread_adapter<SM>(plain_shared,&s2,*pm2));
//Make sure they try to hold the sharable lock
boost::thread::sleep(xsecs(1*BaseSeconds));
// We launch two writers, that should block until the readers end
boost::thread tw1(thread_adapter<SM>(plain_exclusive,&e1,*pm3));
boost::thread tw2(thread_adapter<SM>(plain_exclusive,&e2,*pm4));
thr2.join();
thr1.join();
tw2.join();
tw1.join();
//We can only assure that the shared will finish first...
assert(s1.m_value == 0 || s2.m_value == 0);
//...and writers will be mutually excluded after readers
assert((e1.m_value == 10 && e2.m_value == 20) ||
(e1.m_value == 20 && e2.m_value == 10) );
}
}
