dlls/opcservices/opc_private.h

   1 /*
   2  * Copyright 2018 Nikolay Sivov for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include "msopc.h"
  20 #include "wine/heap.h"
  21
  22 static inline BOOL opc_array_reserve(void **elements, size_t *capacity, size_t count, size_t size)
  23 {
  24     size_t new_capacity, max_capacity;
  25     void *new_elements;
  26
  27     if (count <= *capacity)
  28         return TRUE;
  29
  30     max_capacity = ~(SIZE_T)0 / size;
  31     if (count > max_capacity)
  32         return FALSE;
  33
  34     new_capacity = max(4, *capacity);
  35     while (new_capacity < count && new_capacity <= max_capacity / 2)
  36         new_capacity *= 2;
  37     if (new_capacity < count)
  38         new_capacity = max_capacity;
  39
  40     if (!(new_elements = heap_realloc(*elements, new_capacity * size)))
  41         return FALSE;
  42
  43     *elements = new_elements;
  44     *capacity = new_capacity;
  45     return TRUE;
  46 }
  47
  48 struct opc_uri
  49 {
  50     IOpcPartUri IOpcPartUri_iface;
  51     LONG refcount;
  52     BOOL is_part_uri;
  53
  54     IUri *uri;
  55     IUri *rels_part_uri;
  56     struct opc_uri *source_uri;
  57 };
  58
  59 extern HRESULT opc_package_create(IOpcFactory *factory, IOpcPackage **package) DECLSPEC_HIDDEN;
  60 extern HRESULT opc_part_uri_create(IUri *uri, struct opc_uri *source_uri, IOpcPartUri **part_uri) DECLSPEC_HIDDEN;
  61 extern HRESULT opc_root_uri_create(IOpcUri **opc_uri) DECLSPEC_HIDDEN;
  62
  63 extern HRESULT opc_package_write(IOpcPackage *package, OPC_WRITE_FLAGS flags, IStream *stream) DECLSPEC_HIDDEN;
  64
  65 struct zip_archive;
  66 extern HRESULT compress_create_archive(IStream *output, struct zip_archive **archive) DECLSPEC_HIDDEN;
  67 extern HRESULT compress_add_file(struct zip_archive *archive, const WCHAR *path, IStream *content,
  68         OPC_COMPRESSION_OPTIONS options) DECLSPEC_HIDDEN;
  69 extern void compress_finalize_archive(struct zip_archive *archive) DECLSPEC_HIDDEN;