Sweden-Number/dlls/webservices/heap.c

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/*
* Copyright 2015, 2016 Hans Leidekker for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "webservices.h"
#include "wine/debug.h"
#include "wine/list.h"
#include "webservices_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(webservices);
static const struct prop_desc heap_props[] =
{
{ sizeof(SIZE_T), FALSE }, /* WS_HEAP_PROPERTY_MAX_SIZE */
{ sizeof(SIZE_T), FALSE }, /* WS_HEAP_PROPERTY_TRIM_SIZE */
{ sizeof(SIZE_T), TRUE }, /* WS_HEAP_PROPERTY_REQUESTED_SIZE */
{ sizeof(SIZE_T), TRUE } /* WS_HEAP_PROPERTY_ACTUAL_SIZE */
};
struct heap
{
ULONG magic;
CRITICAL_SECTION cs;
HANDLE handle;
SIZE_T max_size;
SIZE_T allocated;
ULONG prop_count;
struct prop prop[sizeof(heap_props)/sizeof(heap_props[0])];
};
#define HEAP_MAGIC (('H' << 24) | ('E' << 16) | ('A' << 8) | 'P')
static BOOL ensure_heap( struct heap *heap )
{
SIZE_T size;
if (heap->handle) return TRUE;
prop_get( heap->prop, heap->prop_count, WS_HEAP_PROPERTY_MAX_SIZE, &size, sizeof(size) );
if (!(heap->handle = HeapCreate( 0, 0, 0 ))) return FALSE;
heap->max_size = size;
heap->allocated = 0;
return TRUE;
}
void *ws_alloc( WS_HEAP *handle, SIZE_T size )
{
struct heap *heap = (struct heap *)handle;
void *ret = NULL;
EnterCriticalSection( &heap->cs );
if (heap->magic != HEAP_MAGIC) goto done;
if (!ensure_heap( heap ) || size > heap->max_size - heap->allocated) goto done;
if ((ret = HeapAlloc( heap->handle, 0, size ))) heap->allocated += size;
done:
LeaveCriticalSection( &heap->cs );
return ret;
}
void *ws_alloc_zero( WS_HEAP *handle, SIZE_T size )
{
struct heap *heap = (struct heap *)handle;
void *ret = NULL;
EnterCriticalSection( &heap->cs );
if (heap->magic != HEAP_MAGIC) goto done;
if (!ensure_heap( heap ) || size > heap->max_size - heap->allocated) goto done;
if ((ret = HeapAlloc( heap->handle, HEAP_ZERO_MEMORY, size ))) heap->allocated += size;
done:
LeaveCriticalSection( &heap->cs );
return ret;
}
void *ws_realloc( WS_HEAP *handle, void *ptr, SIZE_T old_size, SIZE_T new_size )
{
struct heap *heap = (struct heap *)handle;
void *ret = NULL;
EnterCriticalSection( &heap->cs );
if (heap->magic != HEAP_MAGIC || !ensure_heap( heap )) goto done;
if (new_size >= old_size)
{
SIZE_T size = new_size - old_size;
if (size > heap->max_size - heap->allocated) goto done;
if ((ret = HeapReAlloc( heap->handle, 0, ptr, new_size ))) heap->allocated += size;
}
else
{
SIZE_T size = old_size - new_size;
if ((ret = HeapReAlloc( heap->handle, 0, ptr, new_size ))) heap->allocated -= size;
}
done:
LeaveCriticalSection( &heap->cs );
return ret;
}
void *ws_realloc_zero( WS_HEAP *handle, void *ptr, SIZE_T old_size, SIZE_T new_size )
{
struct heap *heap = (struct heap *)handle;
void *ret = NULL;
EnterCriticalSection( &heap->cs );
if (heap->magic != HEAP_MAGIC || !ensure_heap( heap )) goto done;
if (new_size >= old_size)
{
SIZE_T size = new_size - old_size;
if (size > heap->max_size - heap->allocated) goto done;
if ((ret = HeapReAlloc( heap->handle, HEAP_ZERO_MEMORY, ptr, new_size ))) heap->allocated += size;
}
else
{
SIZE_T size = old_size - new_size;
if ((ret = HeapReAlloc( heap->handle, HEAP_ZERO_MEMORY, ptr, new_size ))) heap->allocated -= size;
}
done:
LeaveCriticalSection( &heap->cs );
return ret;
}
void ws_free( WS_HEAP *handle, void *ptr, SIZE_T size )
{
struct heap *heap = (struct heap *)handle;
EnterCriticalSection( &heap->cs );
if (heap->magic == HEAP_MAGIC)
{
HeapFree( heap->handle, 0, ptr );
heap->allocated -= size;
}
LeaveCriticalSection( &heap->cs );
}
/**************************************************************************
* WsAlloc [webservices.@]
*/
HRESULT WINAPI WsAlloc( WS_HEAP *handle, SIZE_T size, void **ptr, WS_ERROR *error )
{
void *mem;
TRACE( "%p %u %p %p\n", handle, (ULONG)size, ptr, error );
if (error) FIXME( "ignoring error parameter\n" );
if (!handle || !ptr) return E_INVALIDARG;
if (!(mem = ws_alloc( handle, size ))) return WS_E_QUOTA_EXCEEDED;
*ptr = mem;
return S_OK;
}
static struct heap *alloc_heap(void)
{
static const ULONG count = sizeof(heap_props)/sizeof(heap_props[0]);
struct heap *ret;
ULONG size = sizeof(*ret) + prop_size( heap_props, count );
if (!(ret = heap_alloc_zero( size ))) return NULL;
ret->magic = HEAP_MAGIC;
InitializeCriticalSection( &ret->cs );
ret->cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": heap.cs");
prop_init( heap_props, count, ret->prop, &ret[1] );
ret->prop_count = count;
return ret;
}
/**************************************************************************
* WsCreateHeap [webservices.@]
*/
HRESULT WINAPI WsCreateHeap( SIZE_T max_size, SIZE_T trim_size, const WS_HEAP_PROPERTY *properties,
ULONG count, WS_HEAP **handle, WS_ERROR *error )
{
struct heap *heap;
TRACE( "%u %u %p %u %p %p\n", (ULONG)max_size, (ULONG)trim_size, properties, count, handle, error );
if (error) FIXME( "ignoring error parameter\n" );
if (!handle || count) return E_INVALIDARG;
if (!(heap = alloc_heap())) return E_OUTOFMEMORY;
prop_set( heap->prop, heap->prop_count, WS_HEAP_PROPERTY_MAX_SIZE, &max_size, sizeof(max_size) );
prop_set( heap->prop, heap->prop_count, WS_HEAP_PROPERTY_TRIM_SIZE, &trim_size, sizeof(trim_size) );
*handle = (WS_HEAP *)heap;
return S_OK;
}
static void reset_heap( struct heap *heap )
{
HeapDestroy( heap->handle );
heap->handle = NULL;
heap->max_size = heap->allocated = 0;
}
/**************************************************************************
* WsFreeHeap [webservices.@]
*/
void WINAPI WsFreeHeap( WS_HEAP *handle )
{
struct heap *heap = (struct heap *)handle;
TRACE( "%p\n", handle );
if (!heap) return;
EnterCriticalSection( &heap->cs );
if (heap->magic != HEAP_MAGIC)
{
LeaveCriticalSection( &heap->cs );
return;
}
reset_heap( heap );
heap->magic = 0;
LeaveCriticalSection( &heap->cs );
heap->cs.DebugInfo->Spare[0] = 0;
DeleteCriticalSection( &heap->cs );
heap_free( heap );
}
/**************************************************************************
* WsResetHeap [webservices.@]
*/
HRESULT WINAPI WsResetHeap( WS_HEAP *handle, WS_ERROR *error )
{
struct heap *heap = (struct heap *)handle;
TRACE( "%p %p\n", handle, error );
if (error) FIXME( "ignoring error parameter\n" );
if (!heap) return E_INVALIDARG;
EnterCriticalSection( &heap->cs );
if (heap->magic != HEAP_MAGIC)
{
LeaveCriticalSection( &heap->cs );
return E_INVALIDARG;
}
reset_heap( heap );
LeaveCriticalSection( &heap->cs );
return S_OK;
}
/**************************************************************************
* WsGetHeapProperty [webservices.@]
*/
HRESULT WINAPI WsGetHeapProperty( WS_HEAP *handle, WS_HEAP_PROPERTY_ID id, void *buf,
ULONG size, WS_ERROR *error )
{
struct heap *heap = (struct heap *)handle;
HRESULT hr = S_OK;
TRACE( "%p %u %p %u %p\n", handle, id, buf, size, error );
if (error) FIXME( "ignoring error parameter\n" );
if (!heap) return E_INVALIDARG;
EnterCriticalSection( &heap->cs );
if (heap->magic != HEAP_MAGIC)
{
LeaveCriticalSection( &heap->cs );
return E_INVALIDARG;
}
switch (id)
{
case WS_HEAP_PROPERTY_REQUESTED_SIZE:
case WS_HEAP_PROPERTY_ACTUAL_SIZE:
{
SIZE_T *heap_size = buf;
if (!buf || size != sizeof(heap_size)) hr = E_INVALIDARG;
else *heap_size = heap->allocated;
break;
}
default:
hr = prop_get( heap->prop, heap->prop_count, id, buf, size );
}
LeaveCriticalSection( &heap->cs );
return hr;
}
#define XML_BUFFER_INITIAL_ALLOCATED_SIZE 256
struct xmlbuf *alloc_xmlbuf( WS_HEAP *heap )
{
struct xmlbuf *ret;
if (!(ret = ws_alloc( heap, sizeof(*ret) ))) return NULL;
if (!(ret->bytes.bytes = ws_alloc( heap, XML_BUFFER_INITIAL_ALLOCATED_SIZE )))
{
ws_free( heap, ret, sizeof(*ret) );
return NULL;
}
ret->heap = heap;
ret->size = XML_BUFFER_INITIAL_ALLOCATED_SIZE;
ret->bytes.length = 0;
return ret;
}
void free_xmlbuf( struct xmlbuf *xmlbuf )
{
if (!xmlbuf) return;
ws_free( xmlbuf->heap, xmlbuf->bytes.bytes, xmlbuf->size );
ws_free( xmlbuf->heap, xmlbuf, sizeof(*xmlbuf) );
}
/**************************************************************************
* WsCreateXmlBuffer [webservices.@]
*/
HRESULT WINAPI WsCreateXmlBuffer( WS_HEAP *heap, const WS_XML_BUFFER_PROPERTY *properties,
ULONG count, WS_XML_BUFFER **handle, WS_ERROR *error )
{
struct xmlbuf *xmlbuf;
if (!heap || !handle) return E_INVALIDARG;
if (count) FIXME( "properties not implemented\n" );
if (!(xmlbuf = alloc_xmlbuf( heap ))) return WS_E_QUOTA_EXCEEDED;
*handle = (WS_XML_BUFFER *)xmlbuf;
return S_OK;
}