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oleaut32: Add a function to grow the marshal state buffer to a specified size.

This commit is contained in:
Huw Davies 2006-05-10 11:55:37 +01:00 committed by Alexandre Julliard
parent a9c5fd2612
commit d0bdf685f5
1 changed files with 29 additions and 13 deletions
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42
dlls/oleaut32/tmarshal.c
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@ -68,19 +68,35 @@ static char *relaystr(WCHAR *in) {
}
static HRESULT
xbuf_add(marshal_state *buf, LPBYTE stuff, DWORD size) {
while (buf->size - buf->curoff < size) {
if (buf->base) {
buf->size += 100;
buf->base = HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,buf->base,buf->size);
if (!buf->base)
return E_OUTOFMEMORY;
} else {
buf->base = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,32);
buf->size = 32;
if (!buf->base)
return E_OUTOFMEMORY;
}
xbuf_resize(marshal_state *buf, DWORD newsize)
{
if(buf->size >= newsize)
return S_FALSE;
if(buf->base)
{
buf->base = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, buf->base, newsize);
if(!buf->base)
return E_OUTOFMEMORY;
}
else
{
buf->base = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, newsize);
if(!buf->base)
return E_OUTOFMEMORY;
}
return S_OK;
}
static HRESULT
xbuf_add(marshal_state *buf, LPBYTE stuff, DWORD size)
{
HRESULT hr;
if(buf->size - buf->curoff < size)
{
hr = xbuf_resize(buf, buf->size + size + 100);
if(FAILED(hr)) return hr;
}
memcpy(buf->base+buf->curoff,stuff,size);
buf->curoff += size;