Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
[qemu.git] / os-win32.c
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 }