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// $Id$
// ============================================================================
//
// = LIBRARY
// tests
//
// = FILENAME
// Atomic_Op_Test.cpp
//
// = DESCRIPTION
// This is a simple test of the Atomic Operations Class in ACE.
// On platforms like Win32, ACE uses template specialization to
// use native implementations provided by the OS to accelarate
// these operations.
//
// = AUTHOR
// Irfan Pyarali <irfan@cs.wustl.edu>
//
// ============================================================================
#include "tests/test_config.h"
ACE_RCSID(tests, Atomic_Op_Test, "$Id$")
#include "ace/Atomic_Op.h"
#include "ace/Synch_Traits.h"
#include "ace/Time_Value.h"
#include "ace/OS_NS_sys_time.h"
enum { TEST_ITERATIONS = 1000000 };
template <typename TYPE>
void test (const ACE_TCHAR* type)
{
ACE_Atomic_Op <ACE_SYNCH_MUTEX, TYPE> foo (5);
ACE_ASSERT (foo == 5);
TYPE result = ++foo;
ACE_ASSERT (foo == 6);
ACE_ASSERT (result == 6);
result = --foo;
ACE_ASSERT (foo == 5);
ACE_ASSERT (result == 5);
result = foo++;
ACE_ASSERT (foo == 6);
ACE_ASSERT (result == 5);
result = foo--;
ACE_ASSERT (foo == 5);
ACE_ASSERT (result == 6);
result = foo += 10;
ACE_ASSERT (foo == 15);
ACE_ASSERT (result == 15);
result = foo -= 10;
ACE_ASSERT (foo == 5);
ACE_ASSERT (result == 5);
foo = 7;
ACE_ASSERT (foo == 7);
ACE_Atomic_Op <ACE_SYNCH_MUTEX, TYPE> foo2 (5);
foo2 = foo;
ACE_ASSERT (foo == 7);
ACE_ASSERT (foo2 == 7);
ACE_UINT64 usec;
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Starting <%s> assignment %D\n"), type));
ACE_Time_Value diff = ACE_OS::gettimeofday ();
int i;
for (i = 0; i < TEST_ITERATIONS; ++i)
{
foo = 1;
foo = 2;
foo = 3;
foo = 4;
}
diff = ACE_OS::gettimeofday () - diff;
diff.to_usec (usec);
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Ending <%s> assignment %D, took %Q\n"), type, usec));
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Starting <%s> increment %D\n"), type));
diff = ACE_OS::gettimeofday ();
for (i = 0; i < TEST_ITERATIONS; ++i)
{
++foo;
++foo;
++foo;
++foo;
}
diff = ACE_OS::gettimeofday () - diff;
diff.to_usec (usec);
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Ending <%s> increment %D, took %Q\n"), type, usec));
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Starting <%s> decrement %D\n"), type));
diff = ACE_OS::gettimeofday ();
for (i = 0; i < TEST_ITERATIONS; ++i)
{
--foo;
--foo;
--foo;
--foo;
}
diff = ACE_OS::gettimeofday () - diff;
diff.to_usec (usec);
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Ending <%s> decrement %D, took %Q\n"), type, usec));
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Starting <%s> addition %D\n"), type));
diff = ACE_OS::gettimeofday ();
for (i = 0; i < TEST_ITERATIONS; ++i)
{
foo += 5;
foo += 5;
foo += 5;
foo += 5;
}
diff = ACE_OS::gettimeofday () - diff;
diff.to_usec (usec);
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Ending <%s> addition %D, took %Q\n"), type, usec));
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Starting <%s> subtraction %D\n"), type));
diff = ACE_OS::gettimeofday ();
for (i = 0; i < TEST_ITERATIONS; ++i)
{
foo -= 5;
foo -= 5;
foo -= 5;
foo -= 5;
}
diff = ACE_OS::gettimeofday () - diff;
diff.to_usec (usec);
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Ending <%s> subtraction %D, took %Q\n"), type, usec));
}
int
run_main (int, ACE_TCHAR *[])
{
ACE_START_TEST (ACE_TEXT ("Atomic_Op_Test"));
test <int> (ACE_TEXT("int"));
test <long> (ACE_TEXT("long"));
test <unsigned int> (ACE_TEXT("unsigned int"));
test <unsigned long> (ACE_TEXT("unsigned long"));
#if !defined (ACE_LACKS_LONGLONG_T)
test <long long> (ACE_TEXT("long long"));
#endif
ACE_END_TEST;
return 0;
}
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