blob: c0daf8e189e469acf1f8a958aacf65a77f6fccfb [file] [log] [blame]
Jes Sorensen19113502010-06-10 11:42:17 +02001/*
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#include <windows.h>
Paolo Bonzini0727b862013-02-20 14:43:31 +010026#include <mmsystem.h>
Jes Sorensen19113502010-06-10 11:42:17 +020027#include <unistd.h>
28#include <fcntl.h>
29#include <signal.h>
30#include <time.h>
31#include <errno.h>
32#include <sys/time.h>
33#include "config-host.h"
Paolo Bonzini9c17d612012-12-17 18:20:04 +010034#include "sysemu/sysemu.h"
Jes Sorensen59a52642010-06-10 11:42:25 +020035#include "qemu-options.h"
Jes Sorensen19113502010-06-10 11:42:17 +020036
37/***********************************************************/
Stefan Weil0a1574b2010-07-01 00:47:49 +000038/* Functions missing in mingw */
39
40int setenv(const char *name, const char *value, int overwrite)
41{
42 int result = 0;
43 if (overwrite || !getenv(name)) {
44 size_t length = strlen(name) + strlen(value) + 2;
Anthony Liguori7267c092011-08-20 22:09:37 -050045 char *string = g_malloc(length);
Stefan Weil0a1574b2010-07-01 00:47:49 +000046 snprintf(string, length, "%s=%s", name, value);
47 result = putenv(string);
Zhi Hui Li91a9ece2011-11-24 16:27:52 +080048
49 /* Windows takes a copy and does not continue to use our string.
50 * Therefore it can be safely freed on this platform. POSIX code
51 * typically has to leak the string because according to the spec it
52 * becomes part of the environment.
53 */
54 g_free(string);
Stefan Weil0a1574b2010-07-01 00:47:49 +000055 }
56 return result;
57}
58
Jes Sorensen69bd73b2010-06-10 11:42:20 +020059static BOOL WINAPI qemu_ctrl_handler(DWORD type)
60{
Pavel Dovgalukb75a0282012-05-30 10:08:04 +040061 qemu_system_shutdown_request();
62 /* Windows 7 kills application when the function returns.
63 Sleep here to give QEMU a try for closing.
64 Sleep period is 10000ms because Windows kills the program
65 after 10 seconds anyway. */
66 Sleep(10000);
67
Jes Sorensen69bd73b2010-06-10 11:42:20 +020068 return TRUE;
69}
70
Paolo Bonzini0727b862013-02-20 14:43:31 +010071static TIMECAPS mm_tc;
72
73static void os_undo_timer_resolution(void)
74{
75 timeEndPeriod(mm_tc.wPeriodMin);
76}
77
Jes Sorensenfe98ac12010-06-10 11:42:21 +020078void os_setup_early_signal_handling(void)
Jes Sorensen69bd73b2010-06-10 11:42:20 +020079{
Jes Sorensen69bd73b2010-06-10 11:42:20 +020080 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
Paolo Bonzini0727b862013-02-20 14:43:31 +010081 timeGetDevCaps(&mm_tc, sizeof(mm_tc));
82 timeBeginPeriod(mm_tc.wPeriodMin);
83 atexit(os_undo_timer_resolution);
Jes Sorensen69bd73b2010-06-10 11:42:20 +020084}
Jes Sorensen61705402010-06-10 11:42:23 +020085
86/* Look for support files in the same directory as the executable. */
Fam Zheng10f5bff2014-02-10 14:48:51 +080087char *os_find_datadir(void)
Jes Sorensen61705402010-06-10 11:42:23 +020088{
Fam Zheng10f5bff2014-02-10 14:48:51 +080089 return qemu_get_exec_dir();
Jes Sorensen61705402010-06-10 11:42:23 +020090}
Jes Sorensen59a52642010-06-10 11:42:25 +020091
Stefan Weil6650b712010-10-07 18:55:48 +020092void os_set_line_buffering(void)
93{
94 setbuf(stdout, NULL);
95 setbuf(stderr, NULL);
96}
97
Jes Sorensen59a52642010-06-10 11:42:25 +020098/*
99 * Parse OS specific command line options.
100 * return 0 if option handled, -1 otherwise
101 */
102void os_parse_cmd_args(int index, const char *optarg)
103{
104 return;
105}
Jes Sorenseneb505be2010-06-10 11:42:28 +0200106
Jes Sorensenbc4a9572010-10-26 10:39:25 +0200107int qemu_create_pidfile(const char *filename)
108{
109 char buffer[128];
110 int len;
111 HANDLE file;
112 OVERLAPPED overlap;
113 BOOL ret;
114 memset(&overlap, 0, sizeof(overlap));
115
116 file = CreateFile(filename, GENERIC_WRITE, FILE_SHARE_READ, NULL,
Fabien Chouteaubfc763f2011-11-07 15:36:14 +0100117 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
Jes Sorensenbc4a9572010-10-26 10:39:25 +0200118
119 if (file == INVALID_HANDLE_VALUE) {
120 return -1;
121 }
Stefan Weil59ad3402011-07-15 21:38:14 +0200122 len = snprintf(buffer, sizeof(buffer), "%d\n", getpid());
Fabien Chouteaubfc763f2011-11-07 15:36:14 +0100123 ret = WriteFile(file, (LPCVOID)buffer, (DWORD)len,
124 NULL, &overlap);
125 CloseHandle(file);
Jes Sorensenbc4a9572010-10-26 10:39:25 +0200126 if (ret == 0) {
127 return -1;
128 }
129 return 0;
130}