1 /* 2 * os-win32.c 3 * 4 * Copyright (c) 2003-2008 Fabrice Bellard 5 * Copyright (c) 2010 Red Hat, Inc. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a copy 8 * of this software and associated documentation files (the "Software"), to deal 9 * in the Software without restriction, including without limitation the rights 10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 11 * copies of the Software, and to permit persons to whom the Software is 12 * furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 23 * THE SOFTWARE. 24 */ 25 26 #include "qemu/osdep.h" 27 #include <windows.h> 28 #include <mmsystem.h> 29 #include "sysemu/runstate.h" 30 31 static BOOL WINAPI qemu_ctrl_handler(DWORD type) 32 { 33 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_SIGNAL); 34 /* Windows 7 kills application when the function returns. 35 Sleep here to give QEMU a try for closing. 36 Sleep period is 10000ms because Windows kills the program 37 after 10 seconds anyway. */ 38 Sleep(10000); 39 40 return TRUE; 41 } 42 43 static TIMECAPS mm_tc; 44 45 static void os_undo_timer_resolution(void) 46 { 47 timeEndPeriod(mm_tc.wPeriodMin); 48 } 49 50 void os_setup_early_signal_handling(void) 51 { 52 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE); 53 timeGetDevCaps(&mm_tc, sizeof(mm_tc)); 54 timeBeginPeriod(mm_tc.wPeriodMin); 55 atexit(os_undo_timer_resolution); 56 } 57 58 void os_set_line_buffering(void) 59 { 60 setbuf(stdout, NULL); 61 setbuf(stderr, NULL); 62 } 63