Source code of Windows XP (NT5)
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//
// GCCHELP.CPP
// GCC helper functions
//
// Copyright Microsoft 1998-
//
// PRECOMP
#include "precomp.h"
#include "gcchelp.h"
void T126_GCCAllocateHandleConfirm(ULONG drawingHandle, ULONG handle_range)
{
g_WaitingForGCCHandles = FALSE;
TRACE_MSG(("T126_GCCAllocateHandleConfirm drawing handle = %d, range = %d", drawingHandle, handle_range));
TRACE_MSG(("GCC Tank 0 has %d GCC handles ", g_GCCPreallocHandles[0].GccHandleCount));
TRACE_MSG(("GCC Tank 1 has %d GCC handles ", g_GCCPreallocHandles[1].GccHandleCount));
ULONG gccHandle;
if(g_GCCPreallocHandles[g_iGCCHandleIndex].GccHandleCount == 0)
{
TRACE_MSG(("Using GCC Tank %d ", g_iGCCHandleIndex));
g_GCCPreallocHandles[g_iGCCHandleIndex].InitialGCCHandle = drawingHandle;
g_GCCPreallocHandles[g_iGCCHandleIndex].GccHandleCount = handle_range;
}
else
{
UINT index = g_iGCCHandleIndex ? 0 : 1;
TRACE_MSG(("T126_GCCAllocateHandleConfirm: Using GCC Tank %d that contains %d handles",
index, g_GCCPreallocHandles[index].GccHandleCount ));
TRACE_MSG(("Filling up GCC Tank %d ", index));
g_GCCPreallocHandles[index].InitialGCCHandle = drawingHandle;
g_GCCPreallocHandles[index].GccHandleCount = handle_range;
}
if(handle_range <= 2)
{
gccHandle = g_GCCPreallocHandles[g_iGCCHandleIndex].InitialGCCHandle + g_GCCPreallocHandles[g_iGCCHandleIndex].GccHandleCount - handle_range;
g_GCCPreallocHandles[g_iGCCHandleIndex].GccHandleCount = g_GCCPreallocHandles[g_iGCCHandleIndex].GccHandleCount - handle_range;
//
// Remove the drawing object from the list of objects to send
//
T126Obj * pT126Obj = (T126Obj*)g_pListOfObjectsThatRequestedHandles->RemoveTail();
if(!pT126Obj)
{
return;
}
pT126Obj->GotGCCHandle(gccHandle);
}
else
{
if(handle_range != PREALLOC_GCC_HANDLES)
{
//
// Resend all objects
//
WBPOSITION pos;
WBPOSITION posObj;
WorkspaceObj* pWorkspace;
ULONG workspaceHandle;
T126Obj* pObj;
pos = g_pListOfWorkspaces->GetHeadPosition();
while(pos)
{
gccHandle = g_GCCPreallocHandles[g_iGCCHandleIndex].InitialGCCHandle + g_GCCPreallocHandles[g_iGCCHandleIndex].GccHandleCount - 2;
if(g_GCCPreallocHandles[g_iGCCHandleIndex].GccHandleCount == 0)
{
//
// Time to switch to the other tank
//
g_iGCCHandleIndex = g_iGCCHandleIndex ? 0 : 1;
}
ASSERT(g_GCCPreallocHandles[g_iGCCHandleIndex].GccHandleCount);
g_GCCPreallocHandles[g_iGCCHandleIndex].GccHandleCount -=2;
workspaceHandle = gccHandle;
pWorkspace = (WorkspaceObj*)g_pListOfWorkspaces->GetNext(pos);
pWorkspace->SetThisObjectHandle(workspaceHandle);
pWorkspace->SetWorkspaceHandle(workspaceHandle);
pWorkspace->SetOwnerID(g_MyMemberID);
pWorkspace->SetViewHandle(workspaceHandle + 1);
posObj = pWorkspace->GetHeadPosition();
while(posObj)
{
pObj = pWorkspace->GetNextObject(posObj);
if(pObj)
{
gccHandle = g_GCCPreallocHandles[g_iGCCHandleIndex].InitialGCCHandle + g_GCCPreallocHandles[g_iGCCHandleIndex].GccHandleCount - 1;
ASSERT(g_GCCPreallocHandles[g_iGCCHandleIndex].GccHandleCount);
g_GCCPreallocHandles[g_iGCCHandleIndex].GccHandleCount--;
pObj->SetThisObjectHandle(gccHandle);
pObj->SetWorkspaceHandle(workspaceHandle);
pObj->SetOwnerID(g_MyMemberID);
}
}
}
}
}
//
// Check if we have enough handles or shoul switch
//
TimeToGetGCCHandles(PREALLOC_GCC_HANDLES);
SetFakeGCCHandle(drawingHandle + 1);
}