119113504SJes Sorensen /* 219113504SJes Sorensen * os-win32.c 319113504SJes Sorensen * 419113504SJes Sorensen * Copyright (c) 2003-2008 Fabrice Bellard 519113504SJes Sorensen * Copyright (c) 2010 Red Hat, Inc. 619113504SJes Sorensen * 719113504SJes Sorensen * Permission is hereby granted, free of charge, to any person obtaining a copy 819113504SJes Sorensen * of this software and associated documentation files (the "Software"), to deal 919113504SJes Sorensen * in the Software without restriction, including without limitation the rights 1019113504SJes Sorensen * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 1119113504SJes Sorensen * copies of the Software, and to permit persons to whom the Software is 1219113504SJes Sorensen * furnished to do so, subject to the following conditions: 1319113504SJes Sorensen * 1419113504SJes Sorensen * The above copyright notice and this permission notice shall be included in 1519113504SJes Sorensen * all copies or substantial portions of the Software. 1619113504SJes Sorensen * 1719113504SJes Sorensen * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 1819113504SJes Sorensen * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 1919113504SJes Sorensen * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 2019113504SJes Sorensen * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 2119113504SJes Sorensen * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 2219113504SJes Sorensen * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 2319113504SJes Sorensen * THE SOFTWARE. 2419113504SJes Sorensen */ 2519113504SJes Sorensen #include <windows.h> 26*0727b867SPaolo Bonzini #include <mmsystem.h> 2719113504SJes Sorensen #include <unistd.h> 2819113504SJes Sorensen #include <fcntl.h> 2919113504SJes Sorensen #include <signal.h> 3019113504SJes Sorensen #include <time.h> 3119113504SJes Sorensen #include <errno.h> 3219113504SJes Sorensen #include <sys/time.h> 3319113504SJes Sorensen #include "config-host.h" 349c17d615SPaolo Bonzini #include "sysemu/sysemu.h" 3559a5264bSJes Sorensen #include "qemu-options.h" 3619113504SJes Sorensen 3719113504SJes Sorensen /***********************************************************/ 380a1574bbSStefan Weil /* Functions missing in mingw */ 390a1574bbSStefan Weil 400a1574bbSStefan Weil int setenv(const char *name, const char *value, int overwrite) 410a1574bbSStefan Weil { 420a1574bbSStefan Weil int result = 0; 430a1574bbSStefan Weil if (overwrite || !getenv(name)) { 440a1574bbSStefan Weil size_t length = strlen(name) + strlen(value) + 2; 457267c094SAnthony Liguori char *string = g_malloc(length); 460a1574bbSStefan Weil snprintf(string, length, "%s=%s", name, value); 470a1574bbSStefan Weil result = putenv(string); 4891a9ecefSZhi Hui Li 4991a9ecefSZhi Hui Li /* Windows takes a copy and does not continue to use our string. 5091a9ecefSZhi Hui Li * Therefore it can be safely freed on this platform. POSIX code 5191a9ecefSZhi Hui Li * typically has to leak the string because according to the spec it 5291a9ecefSZhi Hui Li * becomes part of the environment. 5391a9ecefSZhi Hui Li */ 5491a9ecefSZhi Hui Li g_free(string); 550a1574bbSStefan Weil } 560a1574bbSStefan Weil return result; 570a1574bbSStefan Weil } 580a1574bbSStefan Weil 5969bd73b1SJes Sorensen static BOOL WINAPI qemu_ctrl_handler(DWORD type) 6069bd73b1SJes Sorensen { 61b75a0282SPavel Dovgaluk qemu_system_shutdown_request(); 62b75a0282SPavel Dovgaluk /* Windows 7 kills application when the function returns. 63b75a0282SPavel Dovgaluk Sleep here to give QEMU a try for closing. 64b75a0282SPavel Dovgaluk Sleep period is 10000ms because Windows kills the program 65b75a0282SPavel Dovgaluk after 10 seconds anyway. */ 66b75a0282SPavel Dovgaluk Sleep(10000); 67b75a0282SPavel Dovgaluk 6869bd73b1SJes Sorensen return TRUE; 6969bd73b1SJes Sorensen } 7069bd73b1SJes Sorensen 71*0727b867SPaolo Bonzini static TIMECAPS mm_tc; 72*0727b867SPaolo Bonzini 73*0727b867SPaolo Bonzini static void os_undo_timer_resolution(void) 74*0727b867SPaolo Bonzini { 75*0727b867SPaolo Bonzini timeEndPeriod(mm_tc.wPeriodMin); 76*0727b867SPaolo Bonzini } 77*0727b867SPaolo Bonzini 78fe98ac14SJes Sorensen void os_setup_early_signal_handling(void) 7969bd73b1SJes Sorensen { 8069bd73b1SJes Sorensen SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE); 81*0727b867SPaolo Bonzini timeGetDevCaps(&mm_tc, sizeof(mm_tc)); 82*0727b867SPaolo Bonzini timeBeginPeriod(mm_tc.wPeriodMin); 83*0727b867SPaolo Bonzini atexit(os_undo_timer_resolution); 8469bd73b1SJes Sorensen } 856170540bSJes Sorensen 866170540bSJes Sorensen /* Look for support files in the same directory as the executable. */ 876170540bSJes Sorensen char *os_find_datadir(const char *argv0) 886170540bSJes Sorensen { 896170540bSJes Sorensen char *p; 906170540bSJes Sorensen char buf[MAX_PATH]; 916170540bSJes Sorensen DWORD len; 926170540bSJes Sorensen 936170540bSJes Sorensen len = GetModuleFileName(NULL, buf, sizeof(buf) - 1); 946170540bSJes Sorensen if (len == 0) { 956170540bSJes Sorensen return NULL; 966170540bSJes Sorensen } 976170540bSJes Sorensen 986170540bSJes Sorensen buf[len] = 0; 996170540bSJes Sorensen p = buf + len - 1; 1006170540bSJes Sorensen while (p != buf && *p != '\\') 1016170540bSJes Sorensen p--; 1026170540bSJes Sorensen *p = 0; 1036170540bSJes Sorensen if (access(buf, R_OK) == 0) { 1047267c094SAnthony Liguori return g_strdup(buf); 1056170540bSJes Sorensen } 1066170540bSJes Sorensen return NULL; 1076170540bSJes Sorensen } 10859a5264bSJes Sorensen 1096650b710SStefan Weil void os_set_line_buffering(void) 1106650b710SStefan Weil { 1116650b710SStefan Weil setbuf(stdout, NULL); 1126650b710SStefan Weil setbuf(stderr, NULL); 1136650b710SStefan Weil } 1146650b710SStefan Weil 11559a5264bSJes Sorensen /* 11659a5264bSJes Sorensen * Parse OS specific command line options. 11759a5264bSJes Sorensen * return 0 if option handled, -1 otherwise 11859a5264bSJes Sorensen */ 11959a5264bSJes Sorensen void os_parse_cmd_args(int index, const char *optarg) 12059a5264bSJes Sorensen { 12159a5264bSJes Sorensen return; 12259a5264bSJes Sorensen } 123eb505be1SJes Sorensen 124eb505be1SJes Sorensen void os_pidfile_error(void) 125eb505be1SJes Sorensen { 126eb505be1SJes Sorensen fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno)); 127eb505be1SJes Sorensen } 128bc4a957cSJes Sorensen 129bc4a957cSJes Sorensen int qemu_create_pidfile(const char *filename) 130bc4a957cSJes Sorensen { 131bc4a957cSJes Sorensen char buffer[128]; 132bc4a957cSJes Sorensen int len; 133bc4a957cSJes Sorensen HANDLE file; 134bc4a957cSJes Sorensen OVERLAPPED overlap; 135bc4a957cSJes Sorensen BOOL ret; 136bc4a957cSJes Sorensen memset(&overlap, 0, sizeof(overlap)); 137bc4a957cSJes Sorensen 138bc4a957cSJes Sorensen file = CreateFile(filename, GENERIC_WRITE, FILE_SHARE_READ, NULL, 139bc4a957cSJes Sorensen OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); 140bc4a957cSJes Sorensen 141bc4a957cSJes Sorensen if (file == INVALID_HANDLE_VALUE) { 142bc4a957cSJes Sorensen return -1; 143bc4a957cSJes Sorensen } 14459ad3403SStefan Weil len = snprintf(buffer, sizeof(buffer), "%d\n", getpid()); 145bfc763fcSFabien Chouteau ret = WriteFile(file, (LPCVOID)buffer, (DWORD)len, 146bfc763fcSFabien Chouteau NULL, &overlap); 147bfc763fcSFabien Chouteau CloseHandle(file); 148bc4a957cSJes Sorensen if (ret == 0) { 149bc4a957cSJes Sorensen return -1; 150bc4a957cSJes Sorensen } 151bc4a957cSJes Sorensen return 0; 152bc4a957cSJes Sorensen } 153