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clang-p2996/libcxx/test/std/thread/thread.mutex/thread.lock.algorithm/lock.pass.cpp
Louis Dionne d486c5b117 [libc++] Clarify the name of Lit features related to standard library selection 
Before this patch, we had features named 'libc++', 'libstdc++' and
'msvc' to describe the three implementations that use our test suite.
This patch renames them to 'stdlib=libc++', 'stdlib=libstdc++', etc
to avoid confusion between MSVC's STL and the MSVC compiler (or Clang
in MSVC mode).

Furthermore, this prepares the terrain for adding support for additional
"implementations" to the test suite. Basically, I'd like to be able to
treat Apple's libc++ differently from LLVM's libc++ for the purpose of
testing, because those effectively behave in different ways in some aspects.
2021-09-28 16:15:25 -04:00

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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// UNSUPPORTED: libcpp-has-no-threads
// This test hangs forever when built against libstdc++ and MSVC. In order to allow
// validation of the test suite against other STLs we have to mark it
// unsupported.
// UNSUPPORTED: stdlib=libstdc++, stdlib=msvc
// <mutex>
// template <class L1, class L2, class... L3>
// void lock(L1&, L2&, L3&...);
#include <mutex>
#include <cassert>
#include "test_macros.h"
class L0
{
bool locked_;
public:
L0() : locked_(false) {}
void lock()
{
locked_ = true;
}
bool try_lock()
{
locked_ = true;
return locked_;
}
void unlock() {locked_ = false;}
bool locked() const {return locked_;}
};
class L1
{
bool locked_;
public:
L1() : locked_(false) {}
void lock()
{
locked_ = true;
}
bool try_lock()
{
locked_ = false;
return locked_;
}
void unlock() {locked_ = false;}
bool locked() const {return locked_;}
};
class L2
{
bool locked_;
public:
L2() : locked_(false) {}
void lock()
{
TEST_THROW(1);
}
bool try_lock()
{
TEST_THROW(1);
return locked_;
}
void unlock() {locked_ = false;}
bool locked() const {return locked_;}
};
int main(int, char**)
{
{
L0 l0;
L0 l1;
std::lock(l0, l1);
assert(l0.locked());
assert(l1.locked());
}
{
L0 l0;
L1 l1;
std::lock(l0, l1);
assert(l0.locked());
assert(l1.locked());
}
{
L1 l0;
L0 l1;
std::lock(l0, l1);
assert(l0.locked());
assert(l1.locked());
}
#ifndef TEST_HAS_NO_EXCEPTIONS
{
L0 l0;
L2 l1;
try
{
std::lock(l0, l1);
assert(false);
}
catch (int)
{
assert(!l0.locked());
assert(!l1.locked());
}
}
{
L2 l0;
L0 l1;
try
{
std::lock(l0, l1);
assert(false);
}
catch (int)
{
assert(!l0.locked());
assert(!l1.locked());
}
}
{
L1 l0;
L2 l1;
try
{
std::lock(l0, l1);
assert(false);
}
catch (int)
{
assert(!l0.locked());
assert(!l1.locked());
}
}
{
L2 l0;
L1 l1;
try
{
std::lock(l0, l1);
assert(false);
}
catch (int)
{
assert(!l0.locked());
assert(!l1.locked());
}
}
{
L2 l0;
L2 l1;
try
{
std::lock(l0, l1);
assert(false);
}
catch (int)
{
assert(!l0.locked());
assert(!l1.locked());
}
}
#endif
#if TEST_STD_VER >= 11
{
L0 l0;
L0 l1;
L0 l2;
std::lock(l0, l1, l2);
assert(l0.locked());
assert(l1.locked());
assert(l2.locked());
}
#ifndef TEST_HAS_NO_EXCEPTIONS
{
L2 l0;
L2 l1;
L2 l2;
try
{
std::lock(l0, l1, l2);
assert(false);
}
catch (int)
{
assert(!l0.locked());
assert(!l1.locked());
assert(!l2.locked());
}
}
#endif
{
L0 l0;
L0 l1;
L1 l2;
std::lock(l0, l1, l2);
assert(l0.locked());
assert(l1.locked());
assert(l2.locked());
}
{
L0 l0;
L1 l1;
L0 l2;
std::lock(l0, l1, l2);
assert(l0.locked());
assert(l1.locked());
assert(l2.locked());
}
{
L1 l0;
L0 l1;
L0 l2;
std::lock(l0, l1, l2);
assert(l0.locked());
assert(l1.locked());
assert(l2.locked());
}
#ifndef TEST_HAS_NO_EXCEPTIONS
{
L0 l0;
L0 l1;
L2 l2;
try
{
std::lock(l0, l1, l2);
assert(false);
}
catch (int)
{
assert(!l0.locked());
assert(!l1.locked());
assert(!l2.locked());
}
}
{
L0 l0;
L2 l1;
L0 l2;
try
{
std::lock(l0, l1, l2);
assert(false);
}
catch (int)
{
assert(!l0.locked());
assert(!l1.locked());
assert(!l2.locked());
}
}
{
L2 l0;
L0 l1;
L0 l2;
try
{
std::lock(l0, l1, l2);
assert(false);
}
catch (int)
{
assert(!l0.locked());
assert(!l1.locked());
assert(!l2.locked());
}
}
{
L2 l0;
L2 l1;
L0 l2;
try
{
std::lock(l0, l1, l2);
assert(false);
}
catch (int)
{
assert(!l0.locked());
assert(!l1.locked());
assert(!l2.locked());
}
}
{
L2 l0;
L0 l1;
L2 l2;
try
{
std::lock(l0, l1, l2);
assert(false);
}
catch (int)
{
assert(!l0.locked());
assert(!l1.locked());
assert(!l2.locked());
}
}
{
L0 l0;
L2 l1;
L2 l2;
try
{
std::lock(l0, l1, l2);
assert(false);
}
catch (int)
{
assert(!l0.locked());
assert(!l1.locked());
assert(!l2.locked());
}
}
{
L2 l0;
L2 l1;
L1 l2;
try
{
std::lock(l0, l1, l2);
assert(false);
}
catch (int)
{
assert(!l0.locked());
assert(!l1.locked());
assert(!l2.locked());
}
}
{
L2 l0;
L1 l1;
L2 l2;
try
{
std::lock(l0, l1, l2);
assert(false);
}
catch (int)
{
assert(!l0.locked());
assert(!l1.locked());
assert(!l2.locked());
}
}
{
L1 l0;
L2 l1;
L2 l2;
try
{
std::lock(l0, l1, l2);
assert(false);
}
catch (int)
{
assert(!l0.locked());
assert(!l1.locked());
assert(!l2.locked());
}
}
#endif // TEST_HAS_NO_EXCEPTIONS
{
L0 l0;
L0 l1;
L0 l2;
L0 l3;
std::lock(l0, l1, l2, l3);
assert(l0.locked());
assert(l1.locked());
assert(l2.locked());
assert(l3.locked());
}
{
L0 l0;
L0 l1;
L0 l2;
L1 l3;
std::lock(l0, l1, l2, l3);
assert(l0.locked());
assert(l1.locked());
assert(l2.locked());
assert(l3.locked());
}
{
L0 l0;
L0 l1;
L1 l2;
L0 l3;
std::lock(l0, l1, l2, l3);
assert(l0.locked());
assert(l1.locked());
assert(l2.locked());
assert(l3.locked());
}
{
L0 l0;
L1 l1;
L0 l2;
L0 l3;
std::lock(l0, l1, l2, l3);
assert(l0.locked());
assert(l1.locked());
assert(l2.locked());
assert(l3.locked());
}
{
L1 l0;
L0 l1;
L0 l2;
L0 l3;
std::lock(l0, l1, l2, l3);
assert(l0.locked());
assert(l1.locked());
assert(l2.locked());
assert(l3.locked());
}
#ifndef TEST_HAS_NO_EXCEPTIONS
{
L0 l0;
L0 l1;
L0 l2;
L2 l3;
try
{
std::lock(l0, l1, l2, l3);
assert(false);
}
catch (int)
{
assert(!l0.locked());
assert(!l1.locked());
assert(!l2.locked());
assert(!l3.locked());
}
}
{
L0 l0;
L0 l1;
L2 l2;
L0 l3;
try
{
std::lock(l0, l1, l2, l3);
assert(false);
}
catch (int)
{
assert(!l0.locked());
assert(!l1.locked());
assert(!l2.locked());
assert(!l3.locked());
}
}
{
L0 l0;
L2 l1;
L0 l2;
L0 l3;
try
{
std::lock(l0, l1, l2, l3);
assert(false);
}
catch (int)
{
assert(!l0.locked());
assert(!l1.locked());
assert(!l2.locked());
assert(!l3.locked());
}
}
{
L2 l0;
L0 l1;
L0 l2;
L0 l3;
try
{
std::lock(l0, l1, l2, l3);
assert(false);
}
catch (int)
{
assert(!l0.locked());
assert(!l1.locked());
assert(!l2.locked());
assert(!l3.locked());
}
}
#endif // TEST_HAS_NO_EXCEPTIONS
#endif // TEST_STD_VER >= 11
return 0;
}
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