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[MSPORTS]

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Implement ComDBResizeDatabase.

svn path=/trunk/; revision=53696
This commit is contained in:
Eric Kohl 2011-09-12 14:24:24 +00:00
parent d28eae967a
commit 3b374be2f7
1 changed files with 82 additions and 2 deletions
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84
reactos/dll/win32/msports/comdb.c
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@ -11,6 +11,8 @@
WINE_DEFAULT_DEBUG_CHANNEL(msports);
#define BITS_PER_BYTE 8
#define BITMAP_SIZE_INCREMENT 0x400
#define BITMAP_SIZE_INVALID_BITS 0x3FF
typedef struct _COMDB
{
@ -276,6 +278,9 @@ ComDBGetCurrentPortUsage(IN HCOMDB hComDB,
BYTE cMask;
LONG lError = ERROR_SUCCESS;
TRACE("ComDBGetCurrentPortUsage(%p %p %lu %lu %p)\n",
hComDB, Buffer, BufferSize, ReportType, MaxPortsReported);
if (hComDB == INVALID_HANDLE_VALUE ||
hComDB == NULL ||
(Buffer == NULL && MaxPortsReported == NULL) ||
@ -581,8 +586,83 @@ WINAPI
ComDBResizeDatabase(IN HCOMDB hComDB,
IN DWORD NewSize)
{
FIXME("ComDBResizeDatabase(%p %lu)\n", hComDB, NewSize);
return ERROR_CALL_NOT_IMPLEMENTED;
PCOMDB pComDB;
PBYTE pBitmap = NULL;
DWORD dwSize;
DWORD dwNewSize;
DWORD dwType;
LONG lError;
TRACE("ComDBResizeDatabase(%p %lu)\n", hComDB, NewSize);
if (hComDB == INVALID_HANDLE_VALUE ||
hComDB == NULL ||
(NewSize & BITMAP_SIZE_INVALID_BITS))
return ERROR_INVALID_PARAMETER;
pComDB = (PCOMDB)hComDB;
/* Wait for the mutex */
WaitForSingleObject(pComDB->hMutex, INFINITE);
/* Get the required bitmap size */
lError = RegQueryValueExW(pComDB->hKey,
L"ComDB",
NULL,
&dwType,
NULL,
&dwSize);
if (lError != ERROR_SUCCESS)
goto done;
/* Check the size limits */
if (NewSize > COMDB_MAX_PORTS_ARBITRATED ||
NewSize <= dwSize * BITS_PER_BYTE)
{
lError = ERROR_BAD_LENGTH;
goto done;
}
/* Calculate the new bitmap size */
dwNewSize = NewSize / BITS_PER_BYTE;
/* Allocate the new bitmap */
pBitmap = HeapAlloc(GetProcessHeap(),
HEAP_ZERO_MEMORY,
dwSize);
if (pBitmap == NULL)
{
ERR("Failed to allocate the bitmap!\n");
lError = ERROR_ACCESS_DENIED;
goto done;
}
/* Read the current bitmap */
lError = RegQueryValueExW(pComDB->hKey,
L"ComDB",
NULL,
&dwType,
pBitmap,
&dwSize);
if (lError != ERROR_SUCCESS)
goto done;
/* Write the new bitmap */
lError = RegSetValueExW(pComDB->hKey,
L"ComDB",
0,
REG_BINARY,
pBitmap,
dwNewSize);
done:;
/* Release the mutex */
ReleaseMutex(pComDB->hMutex);
if (pBitmap != NULL)
HeapFree(GetProcessHeap(), 0, pBitmap);
return lError;
}
/* EOF */