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* cygheap.h (cwdstuff::override_win32_cwd): Declare.

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* ntdll.h (struct _PEB): Add members accessed by the fast cwd method
	starting with Vista.
	(struct _KUSER_SHARED_DATA): Define with only the DismountCount.
	(RtlAllocateHeap): Declare.
	(RtlEnterCriticalSection): Declare.
	(RtlFreeHeap): Declare.
	(RtlLeaveCriticalSection): Declare.
	* path.cc (get_user_proc_parms): Remove.
	(struct _FAST_CWD): New structure.
	(fast_cwd_ptr): Define.
	(SharedUserData): Define.
	(peek32): Define.
	(find_fast_cwd_pointers): New function to find the global pointer
	to the current FAST_CWD structure.
	(copy_cwd_str): New helper function.
	(cwdstuff::override_win32_cwd): New method to set the Win32 CWD.
	(cwdstuff::init): Just call override_win32_cwd from here when
	started from native Win32 parent.
	(cwdstuff::set): Access Win32 CWD via PEB reference instead of using
	get_user_proc_parms function.  Memorize old DismountCount before
	opening directory handle.  Call override_win32_cwd to set up Win32 CWD.
	Be more verbose in comments.
	* wincap.h (wincaps::has_fast_cwd): New element.
	* wincap.cc: Implement has_fast_cwd element throughout.
This commit is contained in:
Corinna Vinschen
2010-10-09 10:54:13 +00:00
parent d8c5f616ef
commit 9c154abedb
6 changed files with 354 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
winsup/cygwin/wincap.cc
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@@ -60,6 +60,7 @@ wincaps wincap_nt4sp4 __attribute__((section (".cygwin_dll_common"), shared)) =
has_localenames:false,
has_mwmo_inputavailable:false,
has_buggy_thread_startup:false,
has_fast_cwd:false,
};
wincaps wincap_2000 __attribute__((section (".cygwin_dll_common"), shared)) = {
@@ -99,6 +100,7 @@ wincaps wincap_2000 __attribute__((section (".cygwin_dll_common"), shared)) = {
has_localenames:false,
has_mwmo_inputavailable:true,
has_buggy_thread_startup:false,
has_fast_cwd:false,
};
wincaps wincap_2000sp4 __attribute__((section (".cygwin_dll_common"), shared)) = {
@@ -138,6 +140,7 @@ wincaps wincap_2000sp4 __attribute__((section (".cygwin_dll_common"), shared)) =
has_localenames:false,
has_mwmo_inputavailable:true,
has_buggy_thread_startup:false,
has_fast_cwd:false,
};
wincaps wincap_xp __attribute__((section (".cygwin_dll_common"), shared)) = {
@@ -177,6 +180,7 @@ wincaps wincap_xp __attribute__((section (".cygwin_dll_common"), shared)) = {
has_localenames:false,
has_mwmo_inputavailable:true,
has_buggy_thread_startup:false,
has_fast_cwd:false,
};
wincaps wincap_xpsp1 __attribute__((section (".cygwin_dll_common"), shared)) = {
@@ -216,6 +220,7 @@ wincaps wincap_xpsp1 __attribute__((section (".cygwin_dll_common"), shared)) = {
has_localenames:false,
has_mwmo_inputavailable:true,
has_buggy_thread_startup:false,
has_fast_cwd:false,
};
wincaps wincap_xpsp2 __attribute__((section (".cygwin_dll_common"), shared)) = {
@@ -255,6 +260,7 @@ wincaps wincap_xpsp2 __attribute__((section (".cygwin_dll_common"), shared)) = {
has_localenames:false,
has_mwmo_inputavailable:true,
has_buggy_thread_startup:false,
has_fast_cwd:false,
};
wincaps wincap_2003 __attribute__((section (".cygwin_dll_common"), shared)) = {
@@ -294,6 +300,7 @@ wincaps wincap_2003 __attribute__((section (".cygwin_dll_common"), shared)) = {
has_localenames:false,
has_mwmo_inputavailable:true,
has_buggy_thread_startup:false,
has_fast_cwd:false,
};
wincaps wincap_vista __attribute__((section (".cygwin_dll_common"), shared)) = {
@@ -333,6 +340,7 @@ wincaps wincap_vista __attribute__((section (".cygwin_dll_common"), shared)) = {
has_localenames:true,
has_mwmo_inputavailable:true,
has_buggy_thread_startup:true,
has_fast_cwd:true,
};
wincaps wincap_7 __attribute__((section (".cygwin_dll_common"), shared)) = {
@@ -372,6 +380,7 @@ wincaps wincap_7 __attribute__((section (".cygwin_dll_common"), shared)) = {
has_localenames:true,
has_mwmo_inputavailable:true,
has_buggy_thread_startup:false,
has_fast_cwd:true,
};
wincapc wincap __attribute__((section (".cygwin_dll_common"), shared));