imalloc.c 4.73 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
/*
 * MAPI Default IMalloc implementation
 *
 * Copyright 2004 Jon Griffiths
 *
 * 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
18
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
 */

#include <stdarg.h>

#define COBJMACROS
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "windef.h"
#include "winbase.h"
#include "winreg.h"
#include "winuser.h"
#include "winerror.h"
#include "winternl.h"
#include "objbase.h"
#include "shlwapi.h"
34
#include "mapiutil.h"
35
#include "util.h"
36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66
#include "wine/debug.h"

WINE_DEFAULT_DEBUG_CHANNEL(mapi);

static const IMallocVtbl MAPI_IMalloc_vt;

typedef struct
{
  const IMallocVtbl *lpVtbl;
  LONG lRef;
} MAPI_IMALLOC;

static MAPI_IMALLOC MAPI_IMalloc = { &MAPI_IMalloc_vt, 0u };

extern LONG MAPI_ObjectCount; /* In mapi32_main.c */

/*************************************************************************
 * MAPIGetDefaultMalloc@0 (MAPI32.59)
 *
 * Get the default MAPI IMalloc interface.
 *
 * PARAMS
 *  None.
 *
 * RETURNS
 *  A pointer to the MAPI default allocator.
 */
LPMALLOC WINAPI MAPIGetDefaultMalloc(void)
{
    TRACE("()\n");

67 68 69
    if (mapiFunctions.MAPIGetDefaultMalloc)
        return mapiFunctions.MAPIGetDefaultMalloc();

70 71 72 73 74 75 76 77 78 79 80 81 82 83 84
    IMalloc_AddRef((LPMALLOC)&MAPI_IMalloc);
    return (LPMALLOC)&MAPI_IMalloc;
}

/**************************************************************************
 * IMAPIMalloc_QueryInterface
 */
static HRESULT WINAPI IMAPIMalloc_fnQueryInterface(LPMALLOC iface, REFIID refiid,
                                                   LPVOID *ppvObj)
{
    TRACE("(%s,%p)\n", debugstr_guid(refiid), ppvObj);

    if (IsEqualIID(refiid, &IID_IUnknown) ||
        IsEqualIID(refiid, &IID_IMalloc))
    {
85
        *ppvObj = &MAPI_IMalloc;
86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117
        TRACE("Returning IMalloc (%p)\n", *ppvObj);
        return S_OK;
    }
    TRACE("Returning E_NOINTERFACE\n");
    return E_NOINTERFACE;
}

/**************************************************************************
 * IMAPIMalloc_AddRef
 */
static ULONG WINAPI IMAPIMalloc_fnAddRef(LPMALLOC iface)
{
    TRACE("(%p)\n", iface);
    InterlockedIncrement(&MAPI_ObjectCount);
    return 1u;
}

/**************************************************************************
 * IMAPIMalloc_Release
 */
static ULONG WINAPI IMAPIMalloc_fnRelease(LPMALLOC iface)
{
    TRACE("(%p)\n", iface);
    InterlockedDecrement(&MAPI_ObjectCount);
    return 1u;
}

/**************************************************************************
 * IMAPIMalloc_Alloc
 */
static LPVOID WINAPI IMAPIMalloc_fnAlloc(LPMALLOC iface, DWORD cb)
{
118
    TRACE("(%p)->(%d)\n", iface, cb);
119

120
    return LocalAlloc(LMEM_FIXED, cb);
121 122 123 124 125 126 127
}

/**************************************************************************
 * IMAPIMalloc_Realloc
 */
static LPVOID WINAPI IMAPIMalloc_fnRealloc(LPMALLOC iface, LPVOID pv, DWORD cb)
{
128
    TRACE("(%p)->(%p, %d)\n", iface, pv, cb);
129 130

    if (!pv)
131
        return LocalAlloc(LMEM_FIXED, cb);
132 133

    if (cb)
134
        return LocalReAlloc(pv, cb, LMEM_MOVEABLE);
135

136
    LocalFree(pv);
137 138 139 140 141 142 143 144 145
    return NULL;
}

/**************************************************************************
 * IMAPIMalloc_Free
 */
static void WINAPI IMAPIMalloc_fnFree(LPMALLOC iface, LPVOID pv)
{
    TRACE("(%p)->(%p)\n", iface, pv);
146
    LocalFree(pv);
147 148 149 150 151 152 153 154
}

/**************************************************************************
 * IMAPIMalloc_GetSize
 */
static DWORD WINAPI IMAPIMalloc_fnGetSize(LPMALLOC iface, LPVOID pv)
{
    TRACE("(%p)->(%p)\n", iface, pv);
155
    return LocalSize(pv);
156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186
}

/**************************************************************************
 * IMAPIMalloc_DidAlloc
 */
static INT WINAPI IMAPIMalloc_fnDidAlloc(LPMALLOC iface, LPVOID pv)
{
    TRACE("(%p)->(%p)\n", iface, pv);
    return -1;
}

/**************************************************************************
 * IMAPIMalloc_HeapMinimize
 */
static void WINAPI IMAPIMalloc_fnHeapMinimize(LPMALLOC iface)
{
    TRACE("(%p)\n", iface);
}

static const IMallocVtbl MAPI_IMalloc_vt =
{
    IMAPIMalloc_fnQueryInterface,
    IMAPIMalloc_fnAddRef,
    IMAPIMalloc_fnRelease,
    IMAPIMalloc_fnAlloc,
    IMAPIMalloc_fnRealloc,
    IMAPIMalloc_fnFree,
    IMAPIMalloc_fnGetSize,
    IMAPIMalloc_fnDidAlloc,
    IMAPIMalloc_fnHeapMinimize
};