[hbelusca] 65891: [WIN32K] - Add global user heap (un)map helper functions that will be used in other portions of code. - For consistency purpose also add the note about the mapping in desktop.c (s...
29 Dec
2014
29 Dec
'14
1:56 p.m.
Author: hbelusca
Date: Mon Dec 29 13:56:28 2014
New Revision: 65891
URL: http://svn.reactos.org/svn/reactos?rev=65891&view=rev
Log:
[WIN32K]
- Add global user heap (un)map helper functions that will be used in other portions of
code.
- For consistency purpose also add the note about the mapping in desktop.c (see r65863 for
what I mean).
- Temporarily add many trace messages.
Modified:
trunk/reactos/win32ss/user/ntuser/desktop.c
trunk/reactos/win32ss/user/ntuser/main.c
trunk/reactos/win32ss/user/ntuser/ntuser.c
trunk/reactos/win32ss/user/ntuser/userfuncs.h
trunk/reactos/win32ss/user/ntuser/usrheap.c
trunk/reactos/win32ss/user/ntuser/usrheap.h
trunk/reactos/win32ss/user/user32/misc/dllmain.c
Modified: trunk/reactos/win32ss/user/ntuser/desktop.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/win32ss/user/ntuser/deskto…
==============================================================================
--- trunk/reactos/win32ss/user/ntuser/desktop.c [iso-8859-1] (original)
+++ trunk/reactos/win32ss/user/ntuser/desktop.c [iso-8859-1] Mon Dec 29 13:56:28 2014
@@ -1849,9 +1849,13 @@
TRACE("IntUnmapDesktopView called for desktop object %p\n", pdesk);
ppi = PsGetCurrentProcessWin32Process();
+
+ /*
+ * Unmap if we're the last thread using the desktop.
+ * Start the search at the next mapping: skip the first entry
+ * as it must be the global user heap mapping.
+ */
PrevLink = &ppi->HeapMappings.Next;
-
- /* Unmap if we're the last thread using the desktop */
HeapMapping = *PrevLink;
while (HeapMapping != NULL)
{
Modified: trunk/reactos/win32ss/user/ntuser/main.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/win32ss/user/ntuser/main.c…
==============================================================================
--- trunk/reactos/win32ss/user/ntuser/main.c [iso-8859-1] (original)
+++ trunk/reactos/win32ss/user/ntuser/main.c [iso-8859-1] Mon Dec 29 13:56:28 2014
@@ -15,8 +15,8 @@
HANDLE hModuleWin;
-NTSTATUS DestroyProcessCallback(PEPROCESS Process);
-NTSTATUS NTAPI DestroyThreadCallback(PETHREAD Thread);
+NTSTATUS ExitProcessCallback(PEPROCESS Process);
+NTSTATUS NTAPI ExitThreadCallback(PETHREAD Thread);
// TODO: Should be moved to some GDI header
NTSTATUS GdiProcessCreate(PEPROCESS Process);
@@ -163,7 +163,7 @@
ppiCurrent->peProcess = Process;
/* Setup process flags */
- ppiCurrent->W32PF_flags = W32PF_PROCESSCONNECTED;
+ ppiCurrent->W32PF_flags |= W32PF_PROCESSCONNECTED;
if ( Process->Peb->ProcessParameters &&
Process->Peb->ProcessParameters->WindowFlags & STARTF_SCRNSAVER )
{
@@ -172,7 +172,7 @@
}
// FIXME: check if this process is allowed.
- ppiCurrent->W32PF_flags |= W32PF_ALLOWFOREGROUNDACTIVATE; // Starting application
it will get toggled off.
+ ppiCurrent->W32PF_flags |= W32PF_ALLOWFOREGROUNDACTIVATE; // Starting application
will get it toggled off.
return STATUS_SUCCESS;
}
@@ -228,13 +228,11 @@
}
NTSTATUS
-CreateProcessCallback(PEPROCESS Process)
-{
+InitProcessCallback(PEPROCESS Process)
+{
+ NTSTATUS Status;
PPROCESSINFO ppiCurrent;
- NTSTATUS Status;
- SIZE_T ViewSize = 0;
- LARGE_INTEGER Offset;
- PVOID UserBase = NULL;
+ PVOID KernelMapping = NULL, UserMapping = NULL;
/* We might be called with an already allocated win32 process */
ppiCurrent = PsGetProcessWin32Process(Process);
@@ -243,6 +241,8 @@
/* There is no more to do for us (this is a success code!) */
return STATUS_ALREADY_WIN32;
}
+ // if (ppiCurrent->W32PF_flags & W32PF_PROCESSCONNECTED)
+ // return STATUS_ALREADY_WIN32;
/* Allocate a new Win32 process info */
Status = AllocW32Process(Process, &ppiCurrent);
@@ -260,27 +260,16 @@
#endif
#endif
- /* Map the global heap into the process */
- Offset.QuadPart = 0;
- Status = MmMapViewOfSection(GlobalUserHeapSection,
- PsGetCurrentProcess(),
- &UserBase,
- 0,
- 0,
- &Offset,
- &ViewSize,
- ViewUnmap,
- SEC_NO_CHANGE,
- PAGE_EXECUTE_READ); /* would prefer PAGE_READONLY, but
thanks to RTL heaps... */
+ /* Map the global user heap into the process */
+ Status = MapGlobalUserHeap(Process, &KernelMapping, &UserMapping);
if (!NT_SUCCESS(Status))
{
TRACE_CH(UserProcess, "Failed to map the global heap! 0x%x\n",
Status);
goto error;
}
- ppiCurrent->HeapMappings.Next = NULL;
- ppiCurrent->HeapMappings.KernelMapping = (PVOID)GlobalUserHeap;
- ppiCurrent->HeapMappings.UserMapping = UserBase;
- ppiCurrent->HeapMappings.Count = 1;
+
+ TRACE_CH(UserProcess, "InitProcessCallback -- We have KernelMapping 0x%p and
UserMapping 0x%p with delta = 0x%x\n",
+ KernelMapping, UserMapping, (ULONG_PTR)KernelMapping -
(ULONG_PTR)UserMapping);
/* Initialize USER process info */
Status = UserProcessCreate(Process);
@@ -305,14 +294,14 @@
return STATUS_SUCCESS;
error:
- ERR_CH(UserProcess, "CreateProcessCallback failed! Freeing ppi 0x%p for
PID:0x%lx\n",
+ ERR_CH(UserProcess, "InitProcessCallback failed! Freeing ppi 0x%p for
PID:0x%lx\n",
ppiCurrent, HandleToUlong(Process->UniqueProcessId));
- DestroyProcessCallback(Process);
+ ExitProcessCallback(Process);
return Status;
}
NTSTATUS
-DestroyProcessCallback(PEPROCESS Process)
+ExitProcessCallback(PEPROCESS Process)
{
PPROCESSINFO ppiCurrent, *pppi;
@@ -352,7 +341,7 @@
NTSTATUS
APIENTRY
Win32kProcessCallback(PEPROCESS Process,
- BOOLEAN Create)
+ BOOLEAN Initialize)
{
NTSTATUS Status;
@@ -362,13 +351,13 @@
UserEnterExclusive();
- if (Create)
- {
- Status = CreateProcessCallback(Process);
+ if (Initialize)
+ {
+ Status = InitProcessCallback(Process);
}
else
{
- Status = DestroyProcessCallback(Process);
+ Status = ExitProcessCallback(Process);
}
UserLeave();
@@ -462,7 +451,7 @@
}
NTSTATUS NTAPI
-CreateThreadCallback(PETHREAD Thread)
+InitThreadCallback(PETHREAD Thread)
{
PEPROCESS Process;
PCLIENTINFO pci;
@@ -669,15 +658,15 @@
return STATUS_SUCCESS;
error:
- ERR_CH(UserThread, "CreateThreadCallback failed! Freeing pti 0x%p for
TID:0x%lx\n",
+ ERR_CH(UserThread, "InitThreadCallback failed! Freeing pti 0x%p for
TID:0x%lx\n",
ptiCurrent, HandleToUlong(Thread->Cid.UniqueThread));
- DestroyThreadCallback(Thread);
+ ExitThreadCallback(Thread);
return Status;
}
NTSTATUS
NTAPI
-DestroyThreadCallback(PETHREAD Thread)
+ExitThreadCallback(PETHREAD Thread)
{
PTHREADINFO *ppti;
PSINGLE_LIST_ENTRY psle;
@@ -843,12 +832,12 @@
if (Type == PsW32ThreadCalloutInitialize)
{
ASSERT(PsGetThreadWin32Thread(Thread) == NULL);
- Status = CreateThreadCallback(Thread);
- }
- else
+ Status = InitThreadCallback(Thread);
+ }
+ else // if (Type == PsW32ThreadCalloutExit)
{
ASSERT(PsGetThreadWin32Thread(Thread) != NULL);
- Status = DestroyThreadCallback(Thread);
+ Status = ExitThreadCallback(Thread);
}
UserLeave();
Modified: trunk/reactos/win32ss/user/ntuser/ntuser.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/win32ss/user/ntuser/ntuser…
==============================================================================
--- trunk/reactos/win32ss/user/ntuser/ntuser.c [iso-8859-1] (original)
+++ trunk/reactos/win32ss/user/ntuser/ntuser.c [iso-8859-1] Mon Dec 29 13:56:28 2014
@@ -123,7 +123,7 @@
// {
/* Initialize the current thread */
- Status = CreateThreadCallback(PsGetCurrentThread());
+ Status = InitThreadCallback(PsGetCurrentThread());
if (!NT_SUCCESS(Status)) return Status;
// }
Modified: trunk/reactos/win32ss/user/ntuser/userfuncs.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/win32ss/user/ntuser/userfu…
==============================================================================
--- trunk/reactos/win32ss/user/ntuser/userfuncs.h [iso-8859-1] (original)
+++ trunk/reactos/win32ss/user/ntuser/userfuncs.h [iso-8859-1] Mon Dec 29 13:56:28 2014
@@ -42,7 +42,7 @@
/*************** MAIN.C ***************/
-NTSTATUS NTAPI CreateThreadCallback(PETHREAD Thread);
+NTSTATUS NTAPI InitThreadCallback(PETHREAD Thread);
/*************** WINSTA.C ***************/
Modified: trunk/reactos/win32ss/user/ntuser/usrheap.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/win32ss/user/ntuser/usrhea…
==============================================================================
--- trunk/reactos/win32ss/user/ntuser/usrheap.c [iso-8859-1] (original)
+++ trunk/reactos/win32ss/user/ntuser/usrheap.c [iso-8859-1] Mon Dec 29 13:56:28 2014
@@ -227,3 +227,111 @@
return pHeap;
}
+
+NTSTATUS
+UnmapGlobalUserHeap(IN PEPROCESS Process)
+{
+ NTSTATUS Status = STATUS_SUCCESS;
+ PPROCESSINFO W32Process;
+ PW32HEAP_USER_MAPPING HeapMapping;
+
+ TRACE_CH(UserProcess, "IntUnmapDesktopView called for process 0x%p\n",
Process);
+
+ W32Process = PsGetProcessWin32Process(Process);
+ if (W32Process == NULL)
+ {
+ ERR_CH(UserProcess, "UnmapGlobalUserHeap - We don't have a Win32
process!\n");
+ ASSERT(FALSE);
+ }
+
+ /* The first mapping entry must be the global user heap */
+ HeapMapping = &W32Process->HeapMappings;
+ ASSERT(HeapMapping->KernelMapping == (PVOID)GlobalUserHeap);
+
+ /* Unmap if we're the last thread using the global user heap */
+ if (--HeapMapping->Count == 0)
+ {
+ TRACE_CH(UserProcess, "UnmapGlobalUserHeap - Unmapping\n");
+ Status = MmUnmapViewOfSection(Process, HeapMapping->UserMapping);
+ }
+
+ return Status;
+}
+
+NTSTATUS
+MapGlobalUserHeap(IN PEPROCESS Process,
+ OUT PVOID* KernelMapping,
+ OUT PVOID* UserMapping)
+{
+ NTSTATUS Status;
+ PPROCESSINFO W32Process;
+ PW32HEAP_USER_MAPPING HeapMapping;
+ PVOID UserBase = NULL;
+
+ SIZE_T ViewSize = 0;
+ LARGE_INTEGER Offset;
+
+ TRACE_CH(UserProcess, "MapGlobalUserHeap called for process 0x%p\n",
Process);
+
+ W32Process = PsGetProcessWin32Process(Process);
+ if (W32Process == NULL)
+ {
+ ERR_CH(UserProcess, "MapGlobalUserHeap - We don't have a Win32
process!\n");
+ ASSERT(FALSE);
+ }
+
+ TRACE_CH(UserProcess, "MapGlobalUserHeap - We got a Win32 process, find for
existing global user heap mapping...\n");
+
+ /* The first mapping entry must be the global user heap */
+ HeapMapping = &W32Process->HeapMappings;
+
+ /* Find out if another thread already mapped the global user heap */
+ if (HeapMapping->KernelMapping == (PVOID)GlobalUserHeap)
+ {
+ HeapMapping->Count++;
+
+ TRACE_CH(UserProcess, "MapGlobalUserHeap - A mapping was found, return
it.\n");
+
+ *KernelMapping = HeapMapping->KernelMapping;
+ *UserMapping = HeapMapping->UserMapping;
+
+ return STATUS_SUCCESS;
+ }
+
+ TRACE_CH(UserProcess, "MapGlobalUserHeap - No mapping was found, let's
map...\n");
+
+ /* We're the first, map the global heap into the process */
+ Offset.QuadPart = 0;
+ Status = MmMapViewOfSection(GlobalUserHeapSection,
+ Process,
+ &UserBase,
+ 0,
+ 0,
+ &Offset,
+ &ViewSize,
+ ViewUnmap,
+ SEC_NO_CHANGE,
+ PAGE_EXECUTE_READ); /* Would prefer PAGE_READONLY, but
thanks to RTL heaps... */
+ if (!NT_SUCCESS(Status))
+ {
+ ERR_CH(UserProcess, "MapGlobalUserHeap - Failed to map the global heap!
0x%x\n", Status);
+ return Status;
+ }
+
+ TRACE_CH(UserProcess, "MapGlobalUserHeap -- Mapped kernel global heap 0x%p to
user space at 0x%p\n",
+ GlobalUserHeap, UserBase);
+
+ /* Add the mapping */
+ HeapMapping->Next = NULL;
+ HeapMapping->KernelMapping = (PVOID)GlobalUserHeap;
+ HeapMapping->UserMapping = UserBase;
+ HeapMapping->Limit = ViewSize;
+ HeapMapping->Count = 1;
+
+ *KernelMapping = HeapMapping->KernelMapping;
+ *UserMapping = HeapMapping->UserMapping;
+
+ return STATUS_SUCCESS;
+}
+
+/* EOF */
Modified: trunk/reactos/win32ss/user/ntuser/usrheap.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/win32ss/user/ntuser/usrhea…
==============================================================================
--- trunk/reactos/win32ss/user/ntuser/usrheap.h [iso-8859-1] (original)
+++ trunk/reactos/win32ss/user/ntuser/usrheap.h [iso-8859-1] Mon Dec 29 13:56:28 2014
@@ -21,6 +21,14 @@
UserCreateHeap(OUT PVOID *SectionObject,
IN OUT PVOID *SystemBase,
IN SIZE_T HeapSize);
+
+NTSTATUS
+UnmapGlobalUserHeap(IN PEPROCESS Process);
+
+NTSTATUS
+MapGlobalUserHeap(IN PEPROCESS Process,
+ OUT PVOID* KernelMapping,
+ OUT PVOID* UserMapping);
static __inline PVOID
UserHeapAlloc(SIZE_T Bytes)
Modified: trunk/reactos/win32ss/user/user32/misc/dllmain.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/win32ss/user/user32/misc/d…
==============================================================================
--- trunk/reactos/win32ss/user/user32/misc/dllmain.c [iso-8859-1] (original)
+++ trunk/reactos/win32ss/user/user32/misc/dllmain.c [iso-8859-1] Mon Dec 29 13:56:28
2014
@@ -216,7 +216,7 @@
{
/*
* Normally we are called by win32k so the win32 thread pointers
- * should be valid as they are set in win32k::CreateThreadCallback.
+ * should be valid as they are set in win32k::InitThreadCallback.
*/
PCLIENTINFO ClientInfo = GetWin32ClientInfo();
BOOLEAN IsFirstThread = _InterlockedExchange8((PCHAR)&gfFirstThread, FALSE);
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