143 lines
3.0 KiB
C++
143 lines
3.0 KiB
C++
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/***
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*memory.cpp - RTC support
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*
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* Copyright (c) 1998-2001, Microsoft Corporation. All rights reserved.
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*
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*
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*Revision History:
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* 07-28-98 JWM Module incorporated into CRTs (from KFrei)
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* 12-01-98 KBF Added some debugging info for _RTC_DEBUG
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* 12-02-98 KBF Fixed MC 11240
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* 05-11-99 KBF Error if RTC support define not enabled
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* 05-26-99 KBF Wrapped in _RTC_ADVMEM, simplified due to loss of -RTClv
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*
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****/
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#ifndef _RTC
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#error RunTime Check support not enabled!
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#endif
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#include "rtcpriv.h"
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#ifdef _RTC_ADVMEM
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#ifdef _RTC_DEBUG
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#include <windows.h>
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#pragma intrinsic(strcpy)
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#pragma intrinsic(strcat)
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char *IntToString(int i)
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{
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static char buf[15];
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bool neg = i < 0;
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int pos = 14;
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buf[14] = 0;
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do {
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int val = i % 16;
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if (val < 10)
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val += '0';
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else
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val = val - 10 + 'A';
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buf[--pos] = val;
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i /= 16;
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} while (i);
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if (neg)
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buf[--pos] = '-';
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return &buf[pos];
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}
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#endif
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void __cdecl
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_RTC_Allocate(void *addr, size_t size, short level)
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{
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if (!addr)
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return;
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#ifdef _RTC_DEBUG
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char buf[88];
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strcpy(buf, IntToString((int)retaddr));
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strcat(buf, " Allocate Memory located @ ");
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strcat(buf, IntToString((int)addr));
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strcat(buf, " of size ");
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strcat(buf, IntToString((int)size));
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strcat(buf, "\n");
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OutputDebugString(buf);
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#endif
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_RTC_HeapBlock key(addr, level);
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_RTC_HeapBlock *hb = _RTC_heapblocks->find(&key);
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if (!hb)
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{
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hb = new _RTC_HeapBlock(addr, level, size);
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_RTC_heapblocks->add(hb);
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} else
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{
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hb->size(size);
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}
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if (level)
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{
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_RTC_Container *parent = _RTC_memhier->AddChild(hb);
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if (parent && parent->info())
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{
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hb->tag(_RTC_MSRenumberShadow((memptr)addr, size, parent->info()->tag()));
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return;
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}
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}
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hb->tag(_RTC_MSAllocShadow((memptr)addr, size, IDX_STATE_FULLY_KNOWN));
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}
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void __cdecl
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_RTC_Free(void *mem, short level)
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{
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if (!mem)
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return;
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#ifdef _RTC_DEBUG
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char buf[88];
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strcpy(buf, IntToString((int)retaddr));
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strcat(buf, " Freeing Memory located at ");
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strcat(buf, IntToString((int)mem));
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strcat(buf, "\n");
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OutputDebugString(buf);
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#endif
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bool fail = false;
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_RTC_HeapBlock key(mem, level);
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_RTC_HeapBlock *hb = _RTC_heapblocks->find(&key);
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if (hb)
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{
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if (level)
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{
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_RTC_Container *parent = _RTC_memhier->DelChild(hb);
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if (parent)
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{
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if (parent->info())
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_RTC_MSRestoreShadow((memptr)(hb->addr()), hb->size(), parent->info()->tag());
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else
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_RTC_MSFreeShadow((memptr)(hb->addr()), hb->size());
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}
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} else
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{
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_RTC_heapblocks->del(hb);
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_RTC_MSFreeShadow((memptr)(hb->addr()), hb->size());
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delete hb;
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}
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}
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}
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#endif // _RTC_ADVMEM
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