Update version for v5.1.0-rc3 release
[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 "qemu-common.h"
30 #include "qemu-options.h"
31 #include "sysemu/runstate.h"
32
33 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
34 {
35 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_SIGNAL);
36 /* Windows 7 kills application when the function returns.
37 Sleep here to give QEMU a try for closing.
38 Sleep period is 10000ms because Windows kills the program
39 after 10 seconds anyway. */
40 Sleep(10000);
41
42 return TRUE;
43 }
44
45 static TIMECAPS mm_tc;
46
47 static void os_undo_timer_resolution(void)
48 {
49 timeEndPeriod(mm_tc.wPeriodMin);
50 }
51
52 void os_setup_early_signal_handling(void)
53 {
54 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
55 timeGetDevCaps(&mm_tc, sizeof(mm_tc));
56 timeBeginPeriod(mm_tc.wPeriodMin);
57 atexit(os_undo_timer_resolution);
58 }
59
60 /*
61 * Look for support files in the same directory as the executable.
62 *
63 * The caller must use g_free() to free the returned data when it is
64 * no longer required.
65 */
66 char *os_find_datadir(void)
67 {
68 return qemu_get_exec_dir();
69 }
70
71 void os_set_line_buffering(void)
72 {
73 setbuf(stdout, NULL);
74 setbuf(stderr, NULL);
75 }
76
77 /*
78 * Parse OS specific command line options.
79 * return 0 if option handled, -1 otherwise
80 */
81 int os_parse_cmd_args(int index, const char *optarg)
82 {
83 return -1;
84 }