diff options
Diffstat (limited to 'winsup/cygwin/window.cc')
| -rw-r--r-- | winsup/cygwin/window.cc | 292 |
1 files changed, 0 insertions, 292 deletions
diff --git a/winsup/cygwin/window.cc b/winsup/cygwin/window.cc deleted file mode 100644 index a04f7c51d..000000000 --- a/winsup/cygwin/window.cc +++ /dev/null @@ -1,292 +0,0 @@ -/* window.cc: hidden windows for signals/itimer support - - Copyright 1997, 1998, 2000, 2001, 2002, 2003, 2004 Red Hat, Inc. - - Written by Sergey Okhapkin <sos@prospect.com.ru> - -This file is part of Cygwin. - -This software is a copyrighted work licensed under the terms of the -Cygwin license. Please consult the file "CYGWIN_LICENSE" for -details. */ - -#include "winsup.h" -#include <sys/time.h> -#include <stdlib.h> -#include <signal.h> -#include <limits.h> -#include <wingdi.h> -#include <winuser.h> -#define USE_SYS_TYPES_FD_SET -#include <winsock2.h> -#include <unistd.h> -#include "cygerrno.h" -#include "perprocess.h" -#include "security.h" -#include "cygthread.h" -#include "thread.h" -#include "cygtls.h" -#include "sync.h" -#include "wininfo.h" - -wininfo NO_COPY winmsg; - -muto NO_COPY *wininfo::lock; - -wininfo::wininfo () -{ - new_muto_name (lock, "!winlock"); -} - -int __stdcall -wininfo::process (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) -{ -#ifndef NOSTRACE - strace.wm (uMsg, wParam, lParam); -#endif - switch (uMsg) - { - case WM_PAINT: - return 0; - case WM_DESTROY: - PostQuitMessage (0); - return 0; - case WM_TIMER: - if (wParam == timer_active) - { - UINT elapse = itv.it_interval.tv_sec * 1000 + - itv.it_interval.tv_usec / 1000; - KillTimer (hwnd, timer_active); - if (!elapse) - timer_active = 0; - else - { - timer_active = SetTimer (hwnd, 1, elapse, NULL); - start_time = GetTickCount (); - itv.it_value = itv.it_interval; - } - raise (SIGALRM); - } - return 0; - case WM_ASYNCIO: - if (WSAGETSELECTEVENT (lParam) == FD_OOB) - raise (SIGURG); - else - raise (SIGIO); - return 0; - default: - return DefWindowProc (hwnd, uMsg, wParam, lParam); - } -} - -static LRESULT CALLBACK -process_window_events (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) -{ - return winmsg.process (hwnd, uMsg, wParam, lParam); -} - -/* Handle windows events. Inherits ownership of the wininfo lock */ -DWORD WINAPI -wininfo::winthread () -{ - MSG msg; - WNDCLASS wc; - static NO_COPY char classname[] = "CygwinWndClass"; - - lock->grab (); - /* Register the window class for the main window. */ - - wc.style = 0; - wc.lpfnWndProc = (WNDPROC) process_window_events; - wc.cbClsExtra = 0; - wc.cbWndExtra = 0; - wc.hInstance = user_data->hmodule; - wc.hIcon = NULL; - wc.hCursor = NULL; - wc.hbrBackground = NULL; - wc.lpszMenuName = NULL; - wc.lpszClassName = classname; - - if (!RegisterClass (&wc)) - api_fatal ("cannot register window class, %E"); - - /* Create hidden window. */ - hwnd = CreateWindow (classname, classname, WS_POPUP, CW_USEDEFAULT, - CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, - (HWND) NULL, (HMENU) NULL, user_data->hmodule, - (LPVOID) NULL); - if (!hwnd) - api_fatal ("couldn't create window, %E"); - lock->release (); - - while (GetMessage (&msg, hwnd, 0, 0) == TRUE) - DispatchMessage (&msg); - - return 0; -} - -static DWORD WINAPI -winthread (VOID *arg) -{ - return ((wininfo *) arg)->winthread (); -} - -wininfo::operator -HWND () -{ - if (hwnd) - return hwnd; - - lock->acquire (); - if (!hwnd) - { - lock->upforgrabs (); - cygthread *h = new cygthread (::winthread, this, "win"); - h->SetThreadPriority (THREAD_PRIORITY_HIGHEST); - h->zap_h (); - lock->acquire (); - } - lock->release (); - return hwnd; -} - -extern "C" int -setitimer (int which, const struct itimerval *value, struct itimerval *oldvalue) -{ - 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)) - { - set_errno (EINVAL); - return -1; - } - if (timer_active) - { - KillTimer (winmsg, timer_active); - timer_active = 0; - } - if (oldvalue) - *oldvalue = itv; - if (value == NULL) - { - set_errno (EFAULT); - return -1; - } - itv = *value; - UINT 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))) - { - __seterrno (); - return -1; - } - start_time = GetTickCount (); - return 0; -} - -extern "C" int -getitimer (int which, struct itimerval *value) -{ - if (which != ITIMER_REAL) - { - set_errno (EINVAL); - return -1; - } - if (value == NULL) - { - set_errno (EFAULT); - return -1; - } - return winmsg.getitimer (value); -} - -/* FIXME: racy */ -int __stdcall -wininfo::getitimer (struct itimerval *value) -{ - *value = itv; - if (!timer_active) - { - value->it_value.tv_sec = 0; - 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; - value->it_value.tv_sec = val / 1000; - value->it_value.tv_usec = val % 1000; - return 0; -} - -extern "C" unsigned int -alarm (unsigned int seconds) -{ - int ret; - struct itimerval newt, oldt; - - newt.it_value.tv_sec = seconds; - newt.it_value.tv_usec = 0; - newt.it_interval.tv_sec = 0; - newt.it_interval.tv_usec = 0; - setitimer (ITIMER_REAL, &newt, &oldt); - ret = oldt.it_value.tv_sec; - if (ret == 0 && oldt.it_value.tv_usec) - ret = 1; - return ret; -} - -extern "C" useconds_t -ualarm (useconds_t value, useconds_t interval) -{ - struct itimerval timer, otimer; - - timer.it_value.tv_sec = 0; - timer.it_value.tv_usec = value; - timer.it_interval.tv_sec = 0; - timer.it_interval.tv_usec = interval; - - if (setitimer (ITIMER_REAL, &timer, &otimer) < 0) - return (u_int)-1; - - return (otimer.it_value.tv_sec * 1000000) + otimer.it_value.tv_usec; -} - -bool -has_visible_window_station (void) -{ - HWINSTA station_hdl; - USEROBJECTFLAGS uof; - DWORD len; - - /* Check if the process is associated with a visible window station. - These are processes running on the local desktop as well as processes - running in terminal server sessions. - Processes running in a service session not explicitely associated - with the desktop (using the "Allow service to interact with desktop" - property) are running in an invisible window station. */ - if ((station_hdl = GetProcessWindowStation ()) - && GetUserObjectInformationA (station_hdl, UOI_FLAGS, &uof, - sizeof uof, &len) - && (uof.dwFlags & WSF_VISIBLE)) - return true; - return false; -} |