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/* alloc.c -- Default memory allocation routines.
(c) 1998-2006 (W3C) MIT, ERCIM, Keio University
See tidy.h for the copyright notice.
*/
#include "tidy.h"
#include "forward.h"
static TidyMalloc g_malloc = NULL;
static TidyRealloc g_realloc = NULL;
static TidyFree g_free = NULL;
static TidyPanic g_panic = NULL;
Bool TIDY_CALL tidySetMallocCall( TidyMalloc fmalloc )
{
g_malloc = fmalloc;
return yes;
}
Bool TIDY_CALL tidySetReallocCall( TidyRealloc frealloc )
{
g_realloc = frealloc;
return yes;
}
Bool TIDY_CALL tidySetFreeCall( TidyFree ffree )
{
g_free = ffree;
return yes;
}
Bool TIDY_CALL tidySetPanicCall( TidyPanic fpanic )
{
g_panic = fpanic;
return yes;
}
static void TIDY_CALL defaultPanic( TidyAllocator* ARG_UNUSED(allocator), ctmbstr msg )
{
if ( g_panic )
g_panic( msg );
else
{
/* 2 signifies a serious error */
fprintf( stderr, "Fatal error: %s\n", msg );
#ifdef _DEBUG
assert(0);
#endif
exit(2);
}
}
static void* TIDY_CALL defaultAlloc( TidyAllocator* allocator, size_t size )
{
void *p = ( g_malloc ? g_malloc(size) : malloc(size) );
if ( !p )
defaultPanic( allocator,"Out of memory!");
return p;
}
static void* TIDY_CALL defaultRealloc( TidyAllocator* allocator, void* mem, size_t newsize )
{
void *p;
if ( mem == NULL )
return defaultAlloc( allocator, newsize );
p = ( g_realloc ? g_realloc(mem, newsize) : realloc(mem, newsize) );
if (!p)
defaultPanic( allocator, "Out of memory!");
return p;
}
static void TIDY_CALL defaultFree( TidyAllocator* ARG_UNUSED(allocator), void* mem )
{
if ( mem )
{
if ( g_free )
g_free( mem );
else
free( mem );
}
}
static const TidyAllocatorVtbl defaultVtbl = {
defaultAlloc,
defaultRealloc,
defaultFree,
defaultPanic
};
TidyAllocator TY_(g_default_allocator) = {
&defaultVtbl
};
/*
* local variables:
* mode: c
* indent-tabs-mode: nil
* c-basic-offset: 4
* eval: (c-set-offset 'substatement-open 0)
* end:
*/
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