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);
51 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
53 exit(STATUS_CONTROL_C_EXIT);
57 void os_setup_early_signal_handling(void)
59 /* Note: cpu_interrupt() is currently not SMP safe, so we force
60 QEMU to run on a single CPU */
62 DWORD_PTR mask, smask;
65 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
67 h = GetCurrentProcess();
68 if (GetProcessAffinityMask(h, &mask, &smask)) {
69 for(i = 0; i < 32; i++) {
75 SetProcessAffinityMask(h, mask);
80 /* Look for support files in the same directory as the executable. */
81 char *os_find_datadir(const char *argv0)
87 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
94 while (p != buf && *p != '\\')
97 if (access(buf, R_OK) == 0) {
103 void os_set_line_buffering(void)
105 setbuf(stdout, NULL);
106 setbuf(stderr, NULL);
110 * Parse OS specific command line options.
111 * return 0 if option handled, -1 otherwise
113 void os_parse_cmd_args(int index, const char *optarg)
118 void os_pidfile_error(void)
120 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
123 int qemu_create_pidfile(const char *filename)
130 memset(&overlap, 0, sizeof(overlap));
132 file = CreateFile(g_win32_locale_filename_from_utf8(filename), GENERIC_WRITE, FILE_SHARE_READ, NULL,
133 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
135 if (file == INVALID_HANDLE_VALUE) {
138 len = snprintf(buffer, sizeof(buffer), "%d\n", getpid());
139 ret = WriteFile(file, (LPCVOID)buffer, (DWORD)len,
148 int qemu_get_thread_id(void)
150 return GetCurrentThreadId();