NewDelete.cxx File Reference

#include <stdlib.h>
#include <errno.h>
#include "MemCheck.h"
#include "TObjectTable.h"
#include "TError.h"
#include "TMapFile.h"
#include "TSystem.h"
#include "mmalloc.h"

Go to the source code of this file.

Classes
class	TReAllocInit
Defines
#define	MEM_DEBUG
#define	MEM_STAT
#define	MEM_CHECKOBJECTPOINTERS
#define	MEM_MAGIC   ((unsigned char)0xAB)
#define	storage_size(p)   ((size_t)(((int*)p)[-2]))
#define	RealStart(p)   ((char*)(p) - 2*sizeof(int))
#define	StoreSize(p, sz)   (*((int*)(p)) = (sz))
#define	ExtStart(p)   ((char*)(p) + 2*sizeof(int))
#define	RealSize(sz)   ((sz) + 2*sizeof(int) + sizeof(char))
#define	StoreMagic(p, sz)   *((unsigned char*)(p)+sz+2*sizeof(int)) = MEM_MAGIC
#define	MemClear(p, start, len)   if ((len) > 0) memset(&((char*)(p))[(start)], 0, (len))
#define	TestMagic(p, sz)   (*((unsigned char*)(p)+sz) != MEM_MAGIC)
#define	CheckMagic(p, s, where)
#define	CheckFreeSize(p, where)
#define	RemoveStatMagic(p, where)
#define	StoreSizeMagic(p, size, where)
#define	MemClearRe(p, start, len)   if ((len) > 0) memset(&((char*)(p))[(start)], 0, (len))
#define	CallFreeHook(p, size)   if (TStorage::GetFreeHook()) TStorage::GetFreeHook()(TStorage::GetFreeHookData(), (p), (size))
#define	CheckObjPtr(p, name)
#define	EnterStat(s, p)   TStorage::EnterStat(s, p)
#define	RemoveStat(p)   TStorage::RemoveStat(p)
#define	R__THROW_BAD
#define	R__THROW_NULL
Functions
void *	CustomReAlloc1 (void *ovp, size_t size)
void *	CustomReAlloc2 (void *ovp, size_t size, size_t oldsize)
void *	operator new (size_t size) R__THROW_BAD
void *	operator new (size_t size, void *vp) R__THROW_NULL
void	operator delete (void *ptr) R__THROW_NULL
Variables
static TReAllocInit	gReallocInit
static const char *	gSpaceErr = "storage exhausted (failed to allocate %ld bytes)"
static int	gNewInit = 0

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Define Documentation

#define CallFreeHook	(	p,
		size		)	if (TStorage::GetFreeHook()) TStorage::GetFreeHook()(TStorage::GetFreeHookData(), (p), (size))

Definition at line 143 of file NewDelete.cxx.

Referenced by operator delete().

#define CheckFreeSize	(	p,
		where		)

Value:

if (storage_size((p)) > TStorage::GetMaxBlockSize()) \
         Fatal(where, "unreasonable size (%ld)", (Long_t)storage_size(p));

Definition at line 115 of file NewDelete.cxx.

#define CheckMagic	(	p,
		s,
		where		)

Value:

if (TestMagic(p, s))    \
         Fatal(where, "%s", "storage area overwritten");

Definition at line 112 of file NewDelete.cxx.

#define CheckObjPtr	(	p,
		name		)

Definition at line 148 of file NewDelete.cxx.

Referenced by operator delete().

#define EnterStat	(	s,
		p		)	TStorage::EnterStat(s, p)

Definition at line 156 of file NewDelete.cxx.

#define ExtStart

(

p

)

((char*)(p) + 2*sizeof(int))

Definition at line 105 of file NewDelete.cxx.

Referenced by CustomReAlloc1(), CustomReAlloc2(), and operator new().

#define MEM_CHECKOBJECTPOINTERS

Definition at line 85 of file NewDelete.cxx.

#define MEM_DEBUG

Definition at line 83 of file NewDelete.cxx.

#define MEM_MAGIC   ((unsigned char)0xAB)

Definition at line 93 of file NewDelete.cxx.

#define MEM_STAT

Definition at line 84 of file NewDelete.cxx.

#define MemClear	(	p,
		start,
		len		)	if ((len) > 0) memset(&((char*)(p))[(start)], 0, (len))

Definition at line 109 of file NewDelete.cxx.

Referenced by operator delete().

#define MemClearRe	(	p,
		start,
		len		)	if ((len) > 0) memset(&((char*)(p))[(start)], 0, (len))

Definition at line 140 of file NewDelete.cxx.

Referenced by CustomReAlloc1(), and CustomReAlloc2().

#define R__THROW_BAD

Definition at line 185 of file NewDelete.cxx.

#define R__THROW_NULL

Definition at line 186 of file NewDelete.cxx.

#define RealSize

(

sz

)

((sz) + 2*sizeof(int) + sizeof(char))

Definition at line 106 of file NewDelete.cxx.

Referenced by CustomReAlloc1(), CustomReAlloc2(), operator delete(), and operator new().

#define RealStart

(

p

)

((char*)(p) - 2*sizeof(int))

Definition at line 103 of file NewDelete.cxx.

Referenced by CustomReAlloc1(), CustomReAlloc2(), and operator delete().

#define RemoveStat

(

p

)

TStorage::RemoveStat(p)

Definition at line 158 of file NewDelete.cxx.

#define RemoveStatMagic	(	p,
		where		)

Value:

CheckFreeSize(p, where); \
      RemoveStat(p); \
      CheckMagic(p, storage_size(p), where)

Definition at line 118 of file NewDelete.cxx.

Referenced by CustomReAlloc1(), CustomReAlloc2(), and operator delete().

#define storage_size

(

p

)

((size_t)(((int*)p)[-2]))

Definition at line 102 of file NewDelete.cxx.

#define StoreMagic	(	p,
		sz		)	*((unsigned char*)(p)+sz+2*sizeof(int)) = MEM_MAGIC

Definition at line 107 of file NewDelete.cxx.

#define StoreSize	(	p,
		sz		)	(*((int*)(p)) = (sz))

Definition at line 104 of file NewDelete.cxx.

#define StoreSizeMagic	(	p,
		size,
		where		)

Value:

StoreSize(p, size); \
      StoreMagic(p, size); \
      EnterStat(size, ExtStart(p)); \
      CheckObjPtr(ExtStart(p), where);

Definition at line 122 of file NewDelete.cxx.

Referenced by CustomReAlloc1(), CustomReAlloc2(), and operator new().

#define TestMagic	(	p,
		sz		)	(*((unsigned char*)(p)+sz) != MEM_MAGIC)

Definition at line 111 of file NewDelete.cxx.

---

Function Documentation

void * CustomReAlloc1	(	void *	ovp,
		size_t	size
	)

Definition at line 314 of file NewDelete.cxx.

References TMemHashTable::AddPointer(), ExtStart, Fatal(), gMmallocDesc, gNewInit, gSpaceErr, TROOT::MemCheck(), MemClearRe, mrealloc(), operator new(), realloc(), RealSize, RealStart, RemoveStatMagic, size_t, storage_size, StoreSizeMagic, and vp.

Referenced by TReAllocInit::TReAllocInit().

void * CustomReAlloc2	(	void *	ovp,
		size_t	size,
		size_t	oldsize
	)

Definition at line 349 of file NewDelete.cxx.

References TMemHashTable::AddPointer(), ExtStart, Fatal(), fprintf(), gMmallocDesc, gNewInit, gSpaceErr, TROOT::MemCheck(), MemClearRe, mrealloc(), operator new(), realloc(), RealSize, RealStart, RemoveStatMagic, storage_size, StoreSizeMagic, and vp.

Referenced by TReAllocInit::TReAllocInit().

void operator delete

(

void *

ptr

)

Definition at line 252 of file NewDelete.cxx.

References CallFreeHook, CheckObjPtr, Fatal(), free(), TMemHashTable::FreePointer(), TSystem::GetErrno(), TMapFile::GetMmallocDesc(), gNewInit, TMapFile::IsWritable(), TROOT::MemCheck(), MemClear, mfree(), ptr, RealSize, RealStart, RemoveStatMagic, TSystem::ResetErrno(), storage_size, SysError(), and TMapFile::WhichMapFile().

void* operator new	(	size_t	size,
		void *	vp
	)

Definition at line 221 of file NewDelete.cxx.

References TMemHashTable::AddPointer(), calloc(), ExtStart, Fatal(), gMmallocDesc, gNewInit, gSpaceErr, mcalloc(), TROOT::MemCheck(), RealSize, TStorage::SetCustomNewDelete(), size, StoreSizeMagic, and vp.

void* operator new

(

size_t

size

)

Definition at line 193 of file NewDelete.cxx.

References TMemHashTable::AddPointer(), calloc(), ExtStart, Fatal(), gMmallocDesc, gNewInit, gSpaceErr, mcalloc(), TROOT::MemCheck(), RealSize, TStorage::SetCustomNewDelete(), size, StoreSizeMagic, and vp.

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Variable Documentation

int gNewInit = 0 [static]

Definition at line 190 of file NewDelete.cxx.

Referenced by CustomReAlloc1(), CustomReAlloc2(), operator delete(), and operator new().

TReAllocInit gReallocInit [static]

Definition at line 77 of file NewDelete.cxx.

const char* gSpaceErr = "storage exhausted (failed to allocate %ld bytes)" [static]

Definition at line 189 of file NewDelete.cxx.

Referenced by TStorage::Alloc(), CustomReAlloc1(), CustomReAlloc2(), operator new(), TStorage::ReAlloc(), TStorage::ReAllocChar(), and TStorage::ReAllocInt().

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