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
  21 static inline BOOL opc_array_reserve(void **elements, size_t *capacity, size_t count, size_t size)
  22 {
  23     size_t new_capacity, max_capacity;
  24     void *new_elements;
  25
  26     if (count <= *capacity)
  27         return TRUE;
  28
  29     max_capacity = ~(SIZE_T)0 / size;
  30     if (count > max_capacity)
  31         return FALSE;
  32
  33     new_capacity = max(4, *capacity);
  34     while (new_capacity < count && new_capacity <= max_capacity / 2)
  35         new_capacity *= 2;
  36     if (new_capacity < count)
  37         new_capacity = max_capacity;
  38
  39     if (!(new_elements = realloc(*elements, new_capacity * size)))
  40         return FALSE;
  41
  42     *elements = new_elements;
  43     *capacity = new_capacity;
  44     return TRUE;
  45 }
  46
  47 struct opc_uri
  48 {
  49     IOpcPartUri IOpcPartUri_iface;
  50     LONG refcount;
  51     BOOL is_part_uri;
  52
  53     IUri *uri;
  54     IUri *rels_part_uri;
  55     struct opc_uri *source_uri;
  56 };
  57
  58 extern HRESULT opc_package_create(IOpcFactory *factory, IOpcPackage **package);
  59 extern HRESULT opc_part_uri_create(IUri *uri, struct opc_uri *source_uri, IOpcPartUri **part_uri);
  60 extern HRESULT opc_root_uri_create(IOpcUri **opc_uri);
  61
  62 extern HRESULT opc_package_write(IOpcPackage *package, OPC_WRITE_FLAGS flags, IStream *stream);
  63
  64 struct zip_archive;
  65 extern HRESULT compress_create_archive(IStream *output, struct zip_archive **archive);
  66 extern HRESULT compress_add_file(struct zip_archive *archive, const WCHAR *path, IStream *content,
  67         OPC_COMPRESSION_OPTIONS options);
  68 extern void compress_finalize_archive(struct zip_archive *archive);