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kernel32: Move AllocMappedBuffer/FreeMappedBuffer to thunk.c.

This commit is contained in:
Alexandre Julliard 2008-12-27 19:45:52 +01:00
parent 186ca36d38
commit 0ce0af5f16
2 changed files with 72 additions and 73 deletions
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73
dlls/kernel32/heap.c
View File

@ -1119,79 +1119,6 @@ BOOL WINAPI LocalUnlock(
}
/**********************************************************************
* AllocMappedBuffer (KERNEL32.38)
*
* This is an undocumented KERNEL32 function that
* SMapLS's a GlobalAlloc'ed buffer.
*
* RETURNS
* EDI register: pointer to buffer
*
* NOTES
* The buffer is preceded by 8 bytes:
* ...
* edi+0 buffer
* edi-4 SEGPTR to buffer
* edi-8 some magic Win95 needs for SUnMapLS
* (we use it for the memory handle)
*
* The SEGPTR is used by the caller!
*/
void WINAPI __regs_AllocMappedBuffer(
CONTEXT86 *context /* [in] EDI register: size of buffer to allocate */
) {
HGLOBAL handle = GlobalAlloc(0, context->Edi + 8);
DWORD *buffer = GlobalLock(handle);
DWORD ptr = 0;
if (buffer)
if (!(ptr = MapLS(buffer + 2)))
{
GlobalUnlock(handle);
GlobalFree(handle);
}
if (!ptr)
context->Eax = context->Edi = 0;
else
{
buffer[0] = (DWORD)handle;
buffer[1] = ptr;
context->Eax = ptr;
context->Edi = (DWORD)(buffer + 2);
}
}
#ifdef DEFINE_REGS_ENTRYPOINT
DEFINE_REGS_ENTRYPOINT( AllocMappedBuffer, 0, 0 )
#endif
/**********************************************************************
* FreeMappedBuffer (KERNEL32.39)
*
* Free a buffer allocated by AllocMappedBuffer
*
* RETURNS
* Nothing.
*/
void WINAPI __regs_FreeMappedBuffer(
CONTEXT86 *context /* [in] EDI register: pointer to buffer */
) {
if (context->Edi)
{
DWORD *buffer = (DWORD *)context->Edi - 2;
UnMapLS(buffer[1]);
GlobalUnlock((HGLOBAL)buffer[0]);
GlobalFree((HGLOBAL)buffer[0]);
}
}
#ifdef DEFINE_REGS_ENTRYPOINT
DEFINE_REGS_ENTRYPOINT( FreeMappedBuffer, 0, 0 )
#endif
/***********************************************************************
* GlobalMemoryStatusEx (KERNEL32.@)
* A version of GlobalMemoryStatus that can deal with memory over 4GB

72
dlls/kernel32/thunk.c
View File

@ -1185,6 +1185,78 @@ FreeSLCallback(
FIXME("(0x%08x): stub\n",x);
}
/**********************************************************************
* AllocMappedBuffer (KERNEL32.38)
*
* This is an undocumented KERNEL32 function that
* SMapLS's a GlobalAlloc'ed buffer.
*
* RETURNS
* EDI register: pointer to buffer
*
* NOTES
* The buffer is preceded by 8 bytes:
* ...
* edi+0 buffer
* edi-4 SEGPTR to buffer
* edi-8 some magic Win95 needs for SUnMapLS
* (we use it for the memory handle)
*
* The SEGPTR is used by the caller!
*/
void WINAPI __regs_AllocMappedBuffer(
CONTEXT86 *context /* [in] EDI register: size of buffer to allocate */
) {
HGLOBAL handle = GlobalAlloc(0, context->Edi + 8);
DWORD *buffer = GlobalLock(handle);
DWORD ptr = 0;
if (buffer)
if (!(ptr = MapLS(buffer + 2)))
{
GlobalUnlock(handle);
GlobalFree(handle);
}
if (!ptr)
context->Eax = context->Edi = 0;
else
{
buffer[0] = (DWORD)handle;
buffer[1] = ptr;
context->Eax = ptr;
context->Edi = (DWORD)(buffer + 2);
}
}
#ifdef DEFINE_REGS_ENTRYPOINT
DEFINE_REGS_ENTRYPOINT( AllocMappedBuffer, 0, 0 )
#endif
/**********************************************************************
* FreeMappedBuffer (KERNEL32.39)
*
* Free a buffer allocated by AllocMappedBuffer
*
* RETURNS
* Nothing.
*/
void WINAPI __regs_FreeMappedBuffer(
CONTEXT86 *context /* [in] EDI register: pointer to buffer */
) {
if (context->Edi)
{
DWORD *buffer = (DWORD *)context->Edi - 2;
UnMapLS(buffer[1]);
GlobalUnlock((HGLOBAL)buffer[0]);
GlobalFree((HGLOBAL)buffer[0]);
}
}
#ifdef DEFINE_REGS_ENTRYPOINT
DEFINE_REGS_ENTRYPOINT( FreeMappedBuffer, 0, 0 )
#endif
/**********************************************************************
* GetTEBSelectorFS (KERNEL.475)