Files
rippled/beast/threads/impl/Atomic.cpp
2013-10-04 14:34:01 -07:00

134 lines
4.0 KiB
C++

//------------------------------------------------------------------------------
/*
This file is part of Beast: https://github.com/vinniefalco/Beast
Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
Portions of this file are from JUCE.
Copyright (c) 2013 - Raw Material Software Ltd.
Please visit http://www.juce.com
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================
#include "../../../modules/beast_core/beast_core.h" // for UnitTest
namespace beast {
class AtomicTests : public UnitTest
{
public:
AtomicTests() : UnitTest ("Atomic", "beast") {}
template <typename Type>
void testFloat ()
{
Atomic<Type> a, b;
a = (Type) 21;
memoryBarrier();
/* These are some simple test cases to check the atomics - let me know
if any of these assertions fail on your system!
*/
expect (a.get() == (Type) 21);
expect (a.compareAndSetValue ((Type) 100, (Type) 50) == (Type) 21);
expect (a.get() == (Type) 21);
expect (a.compareAndSetValue ((Type) 101, a.get()) == (Type) 21);
expect (a.get() == (Type) 101);
expect (! a.compareAndSetBool ((Type) 300, (Type) 200));
expect (a.get() == (Type) 101);
expect (a.compareAndSetBool ((Type) 200, a.get()));
expect (a.get() == (Type) 200);
expect (a.exchange ((Type) 300) == (Type) 200);
expect (a.get() == (Type) 300);
b = a;
expect (b.get() == a.get());
}
template <typename Type>
void testInteger ()
{
Atomic<Type> a, b;
a.set ((Type) 10);
expect (a.value == (Type) 10);
expect (a.get() == (Type) 10);
a += (Type) 15;
expect (a.get() == (Type) 25);
memoryBarrier();
a -= (Type) 5;
expect (a.get() == (Type) 20);
expect (++a == (Type) 21);
++a;
expect (--a == (Type) 21);
expect (a.get() == (Type) 21);
memoryBarrier();
testFloat <Type> ();
}
void runTest()
{
beginTestCase ("Misc");
char a1[7];
expect (numElementsInArray(a1) == 7);
int a2[3];
expect (numElementsInArray(a2) == 3);
expect (ByteOrder::swap ((uint16) 0x1122) == 0x2211);
expect (ByteOrder::swap ((uint32) 0x11223344) == 0x44332211);
expect (ByteOrder::swap ((uint64) literal64bit (0x1122334455667788)) == literal64bit (0x8877665544332211));
beginTestCase ("int");
testInteger <int> ();
beginTestCase ("unsigned int");
testInteger <unsigned int> ();
beginTestCase ("int32");
testInteger <int32> ();
beginTestCase ("uint32");
testInteger <uint32> ();
beginTestCase ("long");
testInteger <long> ();
beginTestCase ("void*");
testInteger <void*> ();
beginTestCase ("int*");
testInteger <int*> ();
beginTestCase ("float");
testFloat <float> ();
#if ! BEAST_64BIT_ATOMICS_UNAVAILABLE // 64-bit intrinsics aren't available on some old platforms
beginTestCase ("int64");
testInteger <int64> ();
beginTestCase ("uint64");
testInteger <uint64> ();
beginTestCase ("double");
testFloat <double> ();
#endif
}
};
static AtomicTests atomicTests;
}