4 * Copyright (c) 2003-2008 Fabrice Bellard
5 * Copyright (c) 2010 Red Hat, Inc.
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:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
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
32 #include "config-host.h"
34 #include "qemu-options.h"
36 /***********************************************************/
37 /* Functions missing in mingw */
39 int setenv(const char *name, const char *value, int overwrite)
42 if (overwrite || !getenv(name)) {
43 size_t length = strlen(name) + strlen(value) + 2;
44 char *string = g_malloc(length);
45 snprintf(string, length, "%s=%s", name, value);
46 result = putenv(string);
48 /* Windows takes a copy and does not continue to use our string.
49 * Therefore it can be safely freed on this platform. POSIX code
50 * typically has to leak the string because according to the spec it
51 * becomes part of the environment.
58 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
60 qemu_system_shutdown_request();
61 /* Windows 7 kills application when the function returns.
62 Sleep here to give QEMU a try for closing.
63 Sleep period is 10000ms because Windows kills the program
64 after 10 seconds anyway. */
71 void os_setup_early_signal_handling(void)
73 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
76 void os_setup_early_signal_handling(void)
78 /* Note: cpu_interrupt() is currently not SMP safe, so we force
79 QEMU to run on a single CPU */
81 DWORD_PTR mask, smask;
84 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
86 h = GetCurrentProcess();
87 if (GetProcessAffinityMask(h, &mask, &smask)) {
88 for(i = 0; i < 32; i++) {
94 SetProcessAffinityMask(h, mask);
98 #endif /* CONFIG_MARU */
100 /* Look for support files in the same directory as the executable. */
101 char *os_find_datadir(const char *argv0)
107 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
114 while (p != buf && *p != '\\')
117 if (access(buf, R_OK) == 0) {
118 return g_strdup(buf);
123 void os_set_line_buffering(void)
125 setbuf(stdout, NULL);
126 setbuf(stderr, NULL);
130 * Parse OS specific command line options.
131 * return 0 if option handled, -1 otherwise
133 void os_parse_cmd_args(int index, const char *optarg)
138 void os_pidfile_error(void)
140 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
143 int qemu_create_pidfile(const char *filename)
150 memset(&overlap, 0, sizeof(overlap));
152 file = CreateFile(filename, GENERIC_WRITE, FILE_SHARE_READ, NULL,
153 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
155 file = CreateFile(g_win32_locale_filename_from_utf8(filename), GENERIC_WRITE, FILE_SHARE_READ, NULL,
156 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
158 if (file == INVALID_HANDLE_VALUE) {
161 len = snprintf(buffer, sizeof(buffer), "%d\n", getpid());
162 ret = WriteFile(file, (LPCVOID)buffer, (DWORD)len,