mirror of
https://github.com/fairwaves/OpenBTS-UMTS.git
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121 lines
3.6 KiB
C++
121 lines
3.6 KiB
C++
/*
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* OpenBTS provides an open source alternative to legacy telco protocols and
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* traditionally complex, proprietary hardware systems.
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*
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* Copyright 2011-2014 Range Networks, Inc.
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*
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* This software is distributed under the terms of the GNU Affero General
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* Public License version 3. See the COPYING and NOTICE files in the main
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* directory for licensing information.
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*
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* This use of this software may be subject to additional restrictions.
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* See the LEGAL file in the main directory for details.
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*/
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#ifndef _MEMORYLEAK_
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#define _MEMORYLEAK_ 1
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#include <map>
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#include "ScalarTypes.h"
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#include "Logger.h"
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// pat 12-27-2012: Turning this off for UMTS because we are not currently looking for memory leaks,
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// and there appear to be some memory corruptions somewhere, which I want to crash instead
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// of just modifying this header.
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#define RN_DISABLE_MEMORY_LEAK_TEST 0
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namespace Utils {
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struct MemStats {
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// Enumerates the classes that are checked.
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// Redundancies are ok, for example, we check BitVector and also
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// several descendants of BitVector.
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enum MemoryNames {
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mZeroIsUnused,
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mVector,
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mVectorData,
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mBitVector,
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mByteVector,
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mByteVectorData,
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mRLCRawBlock,
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mRLCUplinkDataBlock,
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mRLCMessage,
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mRLCMsgPacketDownlinkDummyControlBlock, // Redundant with RLCMessage
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mTBF,
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mLlcEngine,
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mSgsnDownlinkMsg,
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mRachInfo,
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mPdpPdu,
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mFECDispatchInfo,
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mRACHProcessorInfo,
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mDCHProcessorInfo,
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mL3Frame,
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msignalVector,
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mSoftVector,
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mScramblingCode,
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mURlcDownSdu,
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mURlcPdu,
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// Must be last:
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mMax,
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};
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int mMemTotal[mMax]; // In elements, not bytes.
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int mMemNow[mMax];
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const char *mMemName[mMax];
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MemStats();
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void memChkNew(MemoryNames memIndex, const char *id);
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void memChkDel(MemoryNames memIndex, const char *id);
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void text(std::ostream &os);
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// We would prefer to use an unordered_map, but that requires special compile switches.
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// What a super great language.
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typedef std::map<std::string,Int_z> MemMapType;
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MemMapType mMemMap;
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};
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extern struct MemStats gMemStats;
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// This is a memory leak detector.
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// Use by putting RN_MEMCHKNEW and RN_MEMCHKDEL in class constructors/destructors,
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// or use the DEFINE_MEMORY_LEAK_DETECTOR class and add the defined class
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// as an ancestor to the class to be memory leak checked.
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struct MemLabel {
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std::string mccKey;
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virtual ~MemLabel() {
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// During startup there are constructor races where static instances of other classes (BitVector)
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// are inited before MemoryLeak. Such instances have an mccKey of "". I have only seen that happen
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// during an exit() call, which doesnt matter much, but lets be neat and prevent a crash.
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if (mccKey == "") return;
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Int_z &tmp = Utils::gMemStats.mMemMap[mccKey]; tmp = tmp - 1;
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}
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};
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#if RN_DISABLE_MEMORY_LEAK_TEST
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#define RN_MEMCHKNEW(type)
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#define RN_MEMCHKDEL(type)
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#define RN_MEMLOG(type,ptr)
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#define DEFINE_MEMORY_LEAK_DETECTOR_CLASS(subClass,checkerClass) \
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struct checkerClass {};
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#else
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#define RN_MEMCHKNEW(type) { Utils::gMemStats.memChkNew(Utils::MemStats::m##type,#type); }
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#define RN_MEMCHKDEL(type) { Utils::gMemStats.memChkDel(Utils::MemStats::m##type,#type); }
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#define RN_MEMLOG(type,ptr) { \
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static std::string key = format("%s_%s:%d",#type,__FILE__,__LINE__); \
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(ptr)->/* MemCheck##type:: */ mccKey = key; \
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Utils::gMemStats.mMemMap[key]++; \
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}
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// TODO: The above assumes that checkclass is MemCheck ## subClass
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#define DEFINE_MEMORY_LEAK_DETECTOR_CLASS(subClass,checkerClass) \
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struct checkerClass : public virtual Utils::MemLabel { \
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checkerClass() { RN_MEMCHKNEW(subClass); } \
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virtual ~checkerClass() { \
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RN_MEMCHKDEL(subClass); \
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} \
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};
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#endif
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} // namespace Utils
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#endif
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