pointer CGAlloc( size_t size )
/****************************/
{
pointer chunk;
_MemLow;
for( ;; ) {
#if _MEMORY_TRACKING & _FULL_TRACKING
chunk = _trmem_alloc( size, _trmem_guess_who(), Handle );
#else
chunk = _SysAlloc( size );
#endif
if( chunk != NULL ) {
#if _MEMORY_TRACKING & _CHUNK_TRACKING
++Chunks;
#endif
_AlignmentCheck( chunk, 8 );
return( chunk );
}
if( !_MemCheck( size ) ) {
break;
}
}
if( ( MemOut == MO_FATAL ) || ( InOptimizer != 0 ) ) {
FatalError( "Out of memory" );
} else if( MemOut == MO_SUICIDE ) {
Suicide();
}
return( NULL );
}
void *WRAPI WRMemAlloc( size_t size )
{
#ifdef TRMEM
return( _trmem_alloc( size, _trmem_guess_who(), TRMemHandle ) );
#else
return( malloc( size ) );
#endif
}
extern void * TRMemAlloc( size_t size )
/*************************************/
{
#ifdef TRMEM
return( _trmem_alloc( size, _trmem_guess_who(), TRMemHandle ) );
#else
return( malloc( size ) );
#endif
}
void *MemAllocGlobal( size_t size )
/*********************************/
{
void *ptr;
#ifdef TRMEM
ptr = _trmem_alloc( size, _trmem_guess_who(), TRMemHandle );
#else
ptr = malloc( size );
#endif
if( ptr == NULL && size != 0 )
FatalError( ERR_NO_MEMORY );
return( ptr );
}
void *AsmAlloc( size_t size )
{
void *ptr;
#ifdef TRMEM
ptr = _trmem_alloc( size, _trmem_guess_who(), memHandle );
#else
ptr = malloc( size );
#endif
if( ptr == NULL ) {
Fatal( MSG_OUT_OF_MEMORY );
}
return( ptr );
}
void *MAlloc( size_t size )
{
void *p;
#ifdef TRMEM
p = _trmem_alloc( size, _trmem_guess_who(), TRMemHandle );
#else
p = malloc( size );
#endif
if( p == NULL ) {
Fatal( "Out of memory!\n" );
}
return( p );
}
void *MemAlloc( size_t size )
{
void *p;
#ifdef TRMEM
p = _trmem_alloc( size, _trmem_guess_who(), TRMemHandle );
#else
p = malloc( size );
#endif
if( p != NULL ) {
memset( p, 0, size );
}
return( p );
}
void *operator new( size_t size )
/*******************************/
{
void *p;
#ifdef TRACKER
_trmem_who caller;
caller = _trmem_guess_who();
#endif
#ifdef TRACKER
p = _trmem_alloc( size, _trmem_guess_who(), TrHdl );
#else
p = malloc( size );
#endif
return p;
}
void *RcMemMalloc( size_t size )
/******************************/
{
void * ptr;
#ifdef RC_USE_TRMEM
ptr = _trmem_alloc( size, _trmem_guess_who(), RcMemHandle );
#else
ptr = RCMemLayer1Malloc( size );
#endif
if (ptr == NULL) {
RcFatalError( ERR_OUT_OF_MEMORY );
}
return( ptr );
}
void * WBRAlloc( size_t size )
/****************************/
// note: code directly cloned from above since we need to be able to trace
// calling functions when the memory tracker is in.
{
void *p;
#ifdef TRACKER
_trmem_who caller;
caller = _trmem_guess_who();
#endif
#ifdef TRACKER
p = _trmem_alloc( size, _trmem_guess_who(), TrHdl );
#else
p = malloc( size );
#endif
return p;
}
/*
* getMem - get and clear memory
*/
static void *getMem( size_t size, WHO_PTR who )
{
void *tmp;
#ifdef TRMEM
tmp = _trmem_alloc( size, who, trmemHandle );
#else
who = who;
tmp = malloc( size );
#endif
if( tmp != NULL ) {
#ifdef __WATCOMC__
size = MSIZE( tmp );
#endif
memset( tmp, 0, size );
}
return( tmp );
} /* getMem */
void *operator new( size_t size )
/*******************************/
{
void *p;
#ifdef TRACKER
_trmem_who caller;
caller = _trmem_guess_who();
#endif
// for(;;) {
#ifdef TRACKER
p = _trmem_alloc( size, _trmem_guess_who(), TrHdl );
#else
p = malloc( size );
#endif
// if( p != NULL || !DRSwap() ) break; //only for browser
// }
return p;
}
void *MemAlloc( size_t size )
/***************************/
{
MemPtr *ptr;
if( size == 0 ) {
return( NULL );
}
#ifdef TRMEM
ptr = _trmem_alloc( size + sizeof( MemPtr ), _trmem_guess_who(), TRMemHandle );
#else
ptr = malloc( size + sizeof( MemPtr ) );
#endif
if( ptr == NULL )
FatalError( ERR_NO_MEMORY );
ptr->next = memPtr;
ptr->prev = NULL;
if( memPtr ) {
memPtr->prev = ptr;
}
memPtr = ptr;
return( ptr + 1 );
}
void *LAlloc( size_t size )
#endif
{
void *p;
for( ;; ) {
#ifdef TRMEM
p = _trmem_alloc( size, ra, TrHdl );
#else
p = malloc( size );
#endif
if( p != NULL ) {
memset( p, 0, size );
break;
}
if( !FreeUpMemory() ) break;
}
#ifdef _INT_DEBUG
if( p != NULL ) ++Chunks;
#endif
return( p );
}
static void * TRMemAlloc( size_t size )
/*************************************/
{
return( _trmem_alloc( size, _trmem_guess_who(), TRMemHandle ) );
}
void *LAlloc( size_t size )
/*************************/
#endif
{
void *p;
for( ;; ) {
#ifdef TRMEM
p = _trmem_alloc( size, ra, TrHdl );
#elif defined( USE_OS2HMALLOC )
/* Use all but 64MB of available low memory address space
and then use available high memory.
Os2_private_mem_left is a good enough estimate of
address space remaining in the lower private arena.
The goal is to leave a large chunk of address space available
for the HLL_SECT_MISC section which is allocated at the end of pass1
after most of the other memory allocations have been done
*/
if( os2_private_mem_left > 64 * 1024 * 1024 &&
size + 16 < os2_private_mem_left ) {
p = malloc( size );
if( p )
os2_private_mem_left -= size + 16;
}
else {
p = _os2hmalloc( size );
}
#elif defined( OS2_MEM_HDR_MAGIC )
/*
* On OS/2 we will try use high memory when available. OS/2 has
* two arenas for private memory, the Open Watcom heap is currently
* only using the lower one. The lower arena is often smaller than
* 128MB because of fragmentation caused by big applications (like
* mozilla, openoffice, ..) in the shared arena above it. The high
* arena on the other hand, is usually not subject to this kind of
* fragmentation and will normally be able to provide more than
* 400MB of contiguous virtual memory. Big links needs lots of
* memory, so for medium/large allocations we try use the high memory.
*
* The allocations are identified by being at a fixed offset (16) into
* a page and the header values (the 3 magics and the page aligned size).
*/
static int fObjAny = -1; /* -1 = check, 0 = no upper, 1 = have upper */
static size_t minUpperAlloc = 0x2000; /* 8 KBytes */
if( fObjAny && size >= minUpperAlloc ) {
APIRET rc;
ULONG ul;
/*
* Check if can allocate more than 512MB on the first call.
* Will fail if upper arena does not exist.
*/
if( fObjAny == -1) {
rc = DosQuerySysInfo( QSV_VIRTUALADDRESSLIMIT,
QSV_VIRTUALADDRESSLIMIT,
&ul, sizeof( ul ) );
fObjAny = rc == NO_ERROR
&& ul > 512 /*MB*/;
if( !fObjAny )
continue; /* restart the loop */
}
/* Try allocate a block in the high arena. */
ul = size + sizeof( os2_mem_hdr ); /* Make room for header */
ul = ( ul + 0xfff ) & ~0xfffUL; /* Round up to 4K boundary */
rc = DosAllocMem( &p, ul, OBJ_ANY | PAG_READ | PAG_WRITE | PAG_COMMIT );
if( rc == NO_ERROR
&& (uintptr_t)p >= 0x20000000UL /* 512MB */) {
/* Mark allocation as coming from upper arena */
os2_mem_hdr *hdr = (os2_mem_hdr *)p;
hdr->magic = hdr->magic1 = hdr->magic2 = OS2_MEM_HDR_MAGIC;
hdr->size = ul;
p = hdr + 1;
break; /* return pointer to caller */
}
if( rc == ERROR_INVALID_PARAMETER )
fObjAny = FALSE; /* Upper arena not supported */
else if( rc == NO_ERROR )
DosFreeMem( p ); /* Came for lower area - give back */
}
p = malloc( size );
/* If lower arena allocation failed try upper arena unless time to die */
if( p == NULL && fObjAny == TRUE && minUpperAlloc > 0x2000 ) {
minUpperAlloc >>= 1; /* Halve if more than 8192 */
continue; /* Try again */
}
#else /* ! OS2_MEM_HDR_MAGIC */
p = malloc( size );
#endif
if( p != NULL ) {
memset( p, 0, size );
break;
}
/* Try to free up some memory and try malloc */
if( !FreeUpMemory() ) break;
} /* for */