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/********************* */
/*! \file memory.h
** \verbatim
** Original author: Morgan Deters
** Major contributors: none
** Minor contributors (to current version): none
** This file is part of the CVC4 project.
** Copyright (c) 2009-2013 New York University and The University of Iowa
** See the file COPYING in the top-level source directory for licensing
** information.\endverbatim
**
** \brief Utility class to help testing out-of-memory conditions.
**
** Utility class to help testing out-of-memory conditions.
**
** Use it like this (for example):
**
** CVC4::test::WithLimitedMemory wlm(amount);
** TS_ASSERT_THROWS( foo(), bad_alloc );
**
** The WithLimitedMemory destructor will re-establish the previous limit.
**/
#include <cxxtest/TestSuite.h>
#ifndef __CVC4__TEST__MEMORY_H
#define __CVC4__TEST__MEMORY_H
#include <sys/time.h>
#include <sys/resource.h>
#include "util/cvc4_assert.h"
namespace CVC4 {
namespace test {
class WithLimitedMemory {
rlim_t d_prevAmount;
void remember() {
struct rlimit rlim;
TS_ASSERT_EQUALS(getrlimit(RLIMIT_AS, &rlim), 0);
d_prevAmount = rlim.rlim_cur;
}
public:
WithLimitedMemory() {
#ifdef __APPLE__
TS_FAIL("setrlimit() is broken on Mac, can't run memory tests.");
AlwaysAssert(false,
"setrlimit() is broken on Mac, can't run memory tests.");
#endif /* __APPLE__ */
remember();
}
WithLimitedMemory(rlim_t amount) {
#ifdef __APPLE__
TS_FAIL("setrlimit() is broken on Mac, can't run memory tests.");
AlwaysAssert(false,
"setrlimit() is broken on Mac, can't run memory tests.");
#endif /* __APPLE__ */
remember();
set(amount);
}
~WithLimitedMemory() {
set(d_prevAmount);
}
void set(rlim_t amount) {
struct rlimit rlim;
rlim.rlim_cur = amount;
rlim.rlim_max = RLIM_INFINITY;
TS_ASSERT_EQUALS(setrlimit(RLIMIT_AS, &rlim), 0);
}
};
}/* CVC4::test namespace */
}/* CVC4 namespace */
#endif /* __CVC4__TEST__MEMORY_H */
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