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newlib-cygwin
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* cygthread.cc (cygthread::async_create): Define new function. 

* cygthread.h (cygthread::create): Use correct regparm.
(cygthread::standalone): Delete from class and from all constructors.
(cygthread::cygthread): Use three only arguments for detached threads, and
start the thread via QueueUserAPC/async_create.
* dcrt0.cc (dll_crt0_0): Remove handling for wincap.has_buggy_thread_startup.
(dll_crt0_1): Ditto.
* wincap.cc: Ditto throughout.
* wincap.h: Ditto.
This commit is contained in:
Christopher Faylor 2011-07-30 20:50:23 +00:00
parent f7e198a665
commit 53ad6f1394
6 changed files with 37 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,16 @@
2011-07-30 Christopher Faylor <me.cygwin2011@cgf.cx>
* cygthread.cc (cygthread::async_create): Define new function.
* cygthread.h (cygthread::create): Use correct regparm.
(cygthread::standalone): Delete from class and from all constructors.
(cygthread::cygthread): Use three only arguments for detached threads,
and start the thread via QueueUserAPC/async_create.
* dcrt0.cc (dll_crt0_0): Remove handling for
wincap.has_buggy_thread_startup.
(dll_crt0_1): Ditto.
* wincap.cc: Ditto throughout.
* wincap.h: Ditto.
2011-07-30 Christopher Faylor <me.cygwin2011@cgf.cx>
* fhandler.h (fhandler_base_overlapped::size): Declare/define size()

11
winsup/cygwin/cygthread.cc
View File

@ -186,6 +186,17 @@ out:
return info;
}
/* This function is called via QueueUserAPC. Apparently creating threads
asynchronously is a huge performance win on Win64. */
void CALLBACK
cygthread::async_create (ULONG_PTR arg)
{
cygthread *that = (cygthread *) arg;
that->create ();
::SetThreadPriority (that->h, THREAD_PRIORITY_HIGHEST);
that->zap_h ();
}
void
cygthread::create ()
{

26
winsup/cygwin/cygthread.h
View File

@ -31,8 +31,8 @@ class cygthread
bool is_freerange;
static bool exiting;
HANDLE notify_detached;
bool standalone;
void create () __attribute__ ((regparm(2)));
void create () __attribute__ ((regparm (1)));
static void CALLBACK async_create (ULONG_PTR);
public:
bool terminate_thread ();
static DWORD WINAPI stub (VOID *);
@ -44,33 +44,27 @@ class cygthread
void release (bool);
cygthread (LPTHREAD_START_ROUTINE start, unsigned n, LPVOID param, const char *name, HANDLE notify = NULL)
: __name (name), func (start), arglen (n), arg (param),
notify_detached (notify), standalone (false)
notify_detached (notify)
{
create ();
}
cygthread (LPVOID_THREAD_START_ROUTINE start, LPVOID param, const char *name, HANDLE notify = NULL)
cygthread (LPVOID_THREAD_START_ROUTINE start, LPVOID param, const char *name)
: __name (name), func ((LPTHREAD_START_ROUTINE) start), arglen (0),
arg (param), notify_detached (notify), standalone (true)
arg (param), notify_detached (NULL)
{
create ();
/* This is a neverending/high-priority thread */
::SetThreadPriority (h, THREAD_PRIORITY_HIGHEST);
zap_h ();
QueueUserAPC (async_create, GetCurrentThread (), (ULONG_PTR) this);
}
cygthread (LPTHREAD_START_ROUTINE start, LPVOID param, const char *name, HANDLE notify = NULL)
: __name (name), func (start), arglen (0), arg (param),
notify_detached (notify), standalone (false)
notify_detached (notify)
{
create ();
}
cygthread (LPVOID_THREAD_START_ROUTINE start, unsigned n, LPVOID param, const char *name, HANDLE notify = NULL)
cygthread (LPVOID_THREAD_START_ROUTINE start, unsigned n, LPVOID param, const char *name)
: __name (name), func ((LPTHREAD_START_ROUTINE) start), arglen (n),
arg (param), notify_detached (notify), standalone (true)
arg (param), notify_detached (NULL)
{
create ();
/* This is a neverending/high-priority thread */
::SetThreadPriority (h, THREAD_PRIORITY_HIGHEST);
zap_h ();
QueueUserAPC (async_create, GetCurrentThread (), (ULONG_PTR) this);
}
cygthread () {};
static void init ();

5
winsup/cygwin/dcrt0.cc
View File

@ -709,7 +709,7 @@ dll_crt0_0 ()
/* Initialize signal processing here, early, in the hopes that the creation
of a thread early in the process will cause more predictability in memory
layout for the main thread. */
if (!wincap.has_buggy_thread_startup () && !dynamically_loaded)
if (!dynamically_loaded)
sigproc_init ();
debug_printf ("finished dll_crt0_0 initialization");
@ -724,8 +724,9 @@ dll_crt0_1 (void *)
{
extern void initial_setlocale ();
if (wincap.has_buggy_thread_startup () || dynamically_loaded)
if (dynamically_loaded)
sigproc_init ();
check_sanity_and_sync (user_data);
/* Initialize malloc and then call user_shared_initialize since it relies

10
winsup/cygwin/wincap.cc
View File

@ -47,7 +47,6 @@ wincaps wincap_2000 __attribute__((section (".cygwin_dll_common"), shared)) = {
has_broken_alloc_console:false,
has_always_all_codepages:false,
has_localenames:false,
has_buggy_thread_startup:false,
has_fast_cwd:false,
has_restricted_raw_disk_access:false,
use_dont_resolve_hack:false,
@ -78,7 +77,6 @@ wincaps wincap_2000sp4 __attribute__((section (".cygwin_dll_common"), shared)) =
has_broken_alloc_console:false,
has_always_all_codepages:false,
has_localenames:false,
has_buggy_thread_startup:false,
has_fast_cwd:false,
has_restricted_raw_disk_access:false,
use_dont_resolve_hack:false,
@ -109,7 +107,6 @@ wincaps wincap_xp __attribute__((section (".cygwin_dll_common"), shared)) = {
has_broken_alloc_console:false,
has_always_all_codepages:false,
has_localenames:false,
has_buggy_thread_startup:false,
has_fast_cwd:false,
has_restricted_raw_disk_access:false,
use_dont_resolve_hack:true,
@ -140,7 +137,6 @@ wincaps wincap_xpsp1 __attribute__((section (".cygwin_dll_common"), shared)) = {
has_broken_alloc_console:false,
has_always_all_codepages:false,
has_localenames:false,
has_buggy_thread_startup:false,
has_fast_cwd:false,
has_restricted_raw_disk_access:false,
use_dont_resolve_hack:true,
@ -171,7 +167,6 @@ wincaps wincap_xpsp2 __attribute__((section (".cygwin_dll_common"), shared)) = {
has_broken_alloc_console:false,
has_always_all_codepages:false,
has_localenames:false,
has_buggy_thread_startup:false,
has_fast_cwd:false,
has_restricted_raw_disk_access:false,
use_dont_resolve_hack:true,
@ -202,7 +197,6 @@ wincaps wincap_2003 __attribute__((section (".cygwin_dll_common"), shared)) = {
has_broken_alloc_console:false,
has_always_all_codepages:false,
has_localenames:false,
has_buggy_thread_startup:false,
has_fast_cwd:false,
has_restricted_raw_disk_access:false,
use_dont_resolve_hack:true,
@ -233,7 +227,6 @@ wincaps wincap_vista __attribute__((section (".cygwin_dll_common"), shared)) = {
has_broken_alloc_console:false,
has_always_all_codepages:true,
has_localenames:true,
has_buggy_thread_startup:true,
has_fast_cwd:true,
has_restricted_raw_disk_access:true,
use_dont_resolve_hack:false,
@ -264,7 +257,6 @@ wincaps wincap_7 __attribute__((section (".cygwin_dll_common"), shared)) = {
has_broken_alloc_console:true,
has_always_all_codepages:true,
has_localenames:true,
has_buggy_thread_startup:false,
has_fast_cwd:true,
has_restricted_raw_disk_access:true,
use_dont_resolve_hack:false,
@ -358,8 +350,6 @@ wincapc::init ()
((wincaps *)caps)->has_restricted_stack_args = false;
}
if (!wow64)
((wincaps *) caps)->has_buggy_thread_startup = false;
__small_sprintf (osnam, "NT-%d.%d", version.dwMajorVersion,
version.dwMinorVersion);
}

2
winsup/cygwin/wincap.h
View File

@ -37,7 +37,6 @@ struct wincaps
unsigned has_broken_alloc_console : 1;
unsigned has_always_all_codepages : 1;
unsigned has_localenames : 1;
unsigned has_buggy_thread_startup : 1;
unsigned has_fast_cwd : 1;
unsigned has_restricted_raw_disk_access : 1;
unsigned use_dont_resolve_hack : 1;
@ -87,7 +86,6 @@ public:
bool IMPLEMENT (has_broken_alloc_console)
bool IMPLEMENT (has_always_all_codepages)
bool IMPLEMENT (has_localenames)
bool IMPLEMENT (has_buggy_thread_startup)
bool IMPLEMENT (has_fast_cwd)
bool IMPLEMENT (has_restricted_raw_disk_access)
bool IMPLEMENT (use_dont_resolve_hack)