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revert previous not-ready-for-primetime checkin.

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This commit is contained in:
Christopher Faylor 2004-05-15 16:10:41 +00:00
parent 71af2ed39e
commit aafd8a545f
6 changed files with 54 additions and 92 deletions
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1
winsup/cygwin/cygthread.h
View File

@ -41,7 +41,6 @@ class cygthread
(void) CloseHandle (h);
h = NULL;
}
DWORD tid () const {return id;}
};
#define cygself NULL

7
winsup/cygwin/fhandler_socket.cc
View File

@ -32,7 +32,6 @@
#include "sigproc.h"
#include "cygthread.h"
#include "select.h"
#include "wininfo.h"
#include <unistd.h>
extern bool fdsock (cygheap_fdmanip& fd, const device *, SOCKET soc);
@ -1375,7 +1374,7 @@ fhandler_socket::ioctl (unsigned int cmd, void *p)
break;
}
case FIOASYNC:
res = WSAAsyncSelect (get_socket (), winmsg, WM_ASYNCIO,
res = WSAAsyncSelect (get_socket (), gethwnd (), WM_ASYNCIO,
*(int *) p ? ASYNC_MASK : 0);
syscall_printf ("Async I/O on socket %s",
*(int *) p ? "started" : "cancelled");
@ -1391,7 +1390,7 @@ fhandler_socket::ioctl (unsigned int cmd, void *p)
* blocking mode
*/
if (cmd == FIONBIO && *(int *) p == 0)
WSAAsyncSelect (get_socket (), winmsg, 0, 0);
WSAAsyncSelect (get_socket (), gethwnd (), 0, 0);
res = ioctlsocket (get_socket (), cmd, (unsigned long *) p);
if (res == SOCKET_ERROR)
set_winsock_errno ();
@ -1401,7 +1400,7 @@ fhandler_socket::ioctl (unsigned int cmd, void *p)
*(int *) p ? "non" : "");
/* Start AsyncSelect if async socket unblocked */
if (*(int *) p && async_io ())
WSAAsyncSelect (get_socket (), winmsg, WM_ASYNCIO, ASYNC_MASK);
WSAAsyncSelect (get_socket (), gethwnd (), WM_ASYNCIO, ASYNC_MASK);
set_nonblocking (*(int *) p);
}

10
winsup/cygwin/sync.cc
View File

@ -125,16 +125,6 @@ muto::release ()
threads waiting for the lock, so trigger bruteforce. */
if (InterlockedDecrement (&waiters) >= 0)
(void) SetEvent (bruteforce); /* Wake up one of the waiting threads */
else if (*name == '!')
{
CloseHandle (bruteforce); /* If *name == '!' and there are no
other waiters, then this is the
last time this muto will ever be
used, so close the handle. */
#ifdef DEBUGGING
bruteforce = NULL;
#endif
}
}
return 1; /* success. */

8
winsup/cygwin/sync.h
View File

@ -38,6 +38,7 @@ public:
/* Return true if caller thread owns the lock. */
int ismine () {return tid == GetCurrentThreadId ();}
DWORD owner () {return tid;}
int unstable () {return !tid && (sync || waiters >= 0);}
void reset () __attribute__ ((regparm (1)));
bool acquired ();
static void set_exiting_thread () {exiting_thread = GetCurrentThreadId ();}
@ -58,11 +59,4 @@ extern muto muto_start;
static muto __storage __attribute__((nocommon)) __attribute__((section(".data_cygwin_nocopy1"))); \
__name = __storage.init (#__name); \
})
/* Use a statically allocated buffer as the storage for a muto */
#define new_muto_name(__var, __name) \
({ \
static muto __var##_storage __attribute__((nocommon)) __attribute__((section(".data_cygwin_nocopy1"))); \
__var = __var##_storage.init (__name); \
})
#endif /*_SYNC_H*/

118
winsup/cygwin/window.cc
View File

@ -24,21 +24,14 @@ details. */
#include "perprocess.h"
#include "security.h"
#include "cygthread.h"
#include "sync.h"
static DWORD WINAPI winthread (VOID *);
#include "wininfo.h"
wininfo NO_COPY winmsg;
static NO_COPY UINT timer_active = 0;
static NO_COPY struct itimerval itv;
static NO_COPY DWORD start_time;
static NO_COPY HWND ourhwnd = NULL;
muto NO_COPY *wininfo::lock;
wininfo::wininfo ()
{
new_muto_name (lock, "!winlock");
}
int __stdcall
wininfo::process (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
static LRESULT CALLBACK
WndProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
#ifndef NOSTRACE
strace.wm (uMsg, wParam, lParam);
@ -57,7 +50,9 @@ wininfo::process (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
itv.it_interval.tv_usec / 1000;
KillTimer (hwnd, timer_active);
if (!elapse)
timer_active = 0;
{
timer_active = 0;
}
else
{
timer_active = SetTimer (hwnd, 1, elapse, NULL);
@ -78,15 +73,10 @@ wininfo::process (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
}
}
static LRESULT CALLBACK
process_window_events (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
return winmsg.process (hwnd, uMsg, wParam, lParam);
}
static HANDLE window_started;
/* Handle windows events. Inherits ownership of the wininfo lock */
static DWORD WINAPI
winthread (VOID *arg)
Winmain (VOID *)
{
MSG msg;
WNDCLASS wc;
@ -95,7 +85,7 @@ winthread (VOID *arg)
/* Register the window class for the main window. */
wc.style = 0;
wc.lpfnWndProc = (WNDPROC) process_window_events;
wc.lpfnWndProc = (WNDPROC) WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = user_data->hmodule;
@ -106,64 +96,60 @@ winthread (VOID *arg)
wc.lpszClassName = classname;
if (!RegisterClass (&wc))
api_fatal ("cannot register window class, %E");
{
system_printf ("Cannot register window class, %E");
return FALSE;
}
wininfo *wi = (wininfo *) arg;
/* Create hidden window. */
wi->hwnd = CreateWindow (classname, classname, WS_POPUP, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
(HWND) NULL, (HMENU) NULL, user_data->hmodule,
(LPVOID) NULL);
if (!wi->hwnd)
api_fatal ("couldn't create window, %E");
wi->lock->release ();
ourhwnd = CreateWindow (classname, classname, WS_POPUP, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
(HWND) NULL, (HMENU) NULL, user_data->hmodule,
(LPVOID) NULL);
while (GetMessage (&msg, (HWND) arg, 0, 0) == TRUE)
SetEvent (window_started);
if (!ourhwnd)
{
system_printf ("Cannot create window");
return FALSE;
}
/* Start the message loop. */
while (GetMessage (&msg, ourhwnd, 0, 0) == TRUE)
DispatchMessage (&msg);
return 0;
}
wininfo::operator
HWND ()
HWND __stdcall
gethwnd ()
{
if (hwnd)
return hwnd;
if (ourhwnd != NULL)
return ourhwnd;
console_printf ("hwnd is NULL\n");
lock->acquire ();
if (hwnd)
{
console_printf ("hwnd acquired %p\n", hwnd);
lock->release ();
return hwnd;
}
cygthread *h;
console_printf ("creating window\n");
cygthread *h = new cygthread (winthread, this, "win");
window_started = CreateEvent (&sec_none_nih, TRUE, FALSE, NULL);
h = new cygthread (Winmain, NULL, "win");
h->SetThreadPriority (THREAD_PRIORITY_HIGHEST);
WaitForSingleObject (window_started, INFINITE);
CloseHandle (window_started);
h->zap_h ();
while (!hwnd)
low_priority_sleep (0);
return hwnd;
return ourhwnd;
}
extern "C" int
setitimer (int which, const struct itimerval *value, struct itimerval *oldvalue)
{
UINT elapse;
if (which != ITIMER_REAL)
{
set_errno (ENOSYS);
return -1;
}
return winmsg.setitimer (value, oldvalue);
}
/* FIXME: Very racy */
int __stdcall
wininfo::setitimer (const struct itimerval *value, struct itimerval *oldvalue)
{
/* Check if we will wrap */
if (itv.it_value.tv_sec >= (long) (UINT_MAX / 1000))
{
@ -172,7 +158,7 @@ wininfo::setitimer (const struct itimerval *value, struct itimerval *oldvalue)
}
if (timer_active)
{
KillTimer (winmsg, timer_active);
KillTimer (gethwnd (), timer_active);
timer_active = 0;
}
if (oldvalue)
@ -183,13 +169,13 @@ wininfo::setitimer (const struct itimerval *value, struct itimerval *oldvalue)
return -1;
}
itv = *value;
UINT elapse = itv.it_value.tv_sec * 1000 + itv.it_value.tv_usec / 1000;
elapse = itv.it_value.tv_sec * 1000 + itv.it_value.tv_usec / 1000;
if (elapse == 0)
if (itv.it_value.tv_usec)
elapse = 1;
else
return 0;
if (!(timer_active = SetTimer (winmsg, 1, elapse, NULL)))
if (!(timer_active = SetTimer (gethwnd (), 1, elapse, NULL)))
{
__seterrno ();
return -1;
@ -201,6 +187,8 @@ wininfo::setitimer (const struct itimerval *value, struct itimerval *oldvalue)
extern "C" int
getitimer (int which, struct itimerval *value)
{
UINT elapse, val;
if (which != ITIMER_REAL)
{
set_errno (EINVAL);
@ -211,13 +199,6 @@ getitimer (int which, struct itimerval *value)
set_errno (EFAULT);
return -1;
}
return winmsg.getitimer (value);
}
/* FIXME: racy */
int __stdcall
wininfo::getitimer (struct itimerval *value)
{
*value = itv;
if (!timer_active)
{
@ -225,9 +206,6 @@ wininfo::getitimer (struct itimerval *value)
value->it_value.tv_usec = 0;
return 0;
}
UINT elapse, val;
elapse = GetTickCount () - start_time;
val = itv.it_value.tv_sec * 1000 + itv.it_value.tv_usec / 1000;
val -= elapse;

2
winsup/cygwin/winsup.h
View File

@ -217,6 +217,8 @@ void events_terminate (void);
void __stdcall close_all_files ();
/* Invisible window initialization/termination. */
HWND __stdcall gethwnd (void);
/* Check if running in a visible window station. */
extern bool has_visible_window_station (void);