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 */ 25*d38ea87aSPeter Maydell #include "qemu/osdep.h" 2619113504SJes Sorensen #include <windows.h> 270727b867SPaolo Bonzini #include <mmsystem.h> 289c17d615SPaolo Bonzini #include "sysemu/sysemu.h" 2959a5264bSJes Sorensen #include "qemu-options.h" 3019113504SJes Sorensen 3119113504SJes Sorensen /***********************************************************/ 320a1574bbSStefan Weil /* Functions missing in mingw */ 330a1574bbSStefan Weil 340a1574bbSStefan Weil int setenv(const char *name, const char *value, int overwrite) 350a1574bbSStefan Weil { 360a1574bbSStefan Weil int result = 0; 370a1574bbSStefan Weil if (overwrite || !getenv(name)) { 380a1574bbSStefan Weil size_t length = strlen(name) + strlen(value) + 2; 397267c094SAnthony Liguori char *string = g_malloc(length); 400a1574bbSStefan Weil snprintf(string, length, "%s=%s", name, value); 410a1574bbSStefan Weil result = putenv(string); 4291a9ecefSZhi Hui Li 4391a9ecefSZhi Hui Li /* Windows takes a copy and does not continue to use our string. 4491a9ecefSZhi Hui Li * Therefore it can be safely freed on this platform. POSIX code 4591a9ecefSZhi Hui Li * typically has to leak the string because according to the spec it 4691a9ecefSZhi Hui Li * becomes part of the environment. 4791a9ecefSZhi Hui Li */ 4891a9ecefSZhi Hui Li g_free(string); 490a1574bbSStefan Weil } 500a1574bbSStefan Weil return result; 510a1574bbSStefan Weil } 520a1574bbSStefan Weil 5369bd73b1SJes Sorensen static BOOL WINAPI qemu_ctrl_handler(DWORD type) 5469bd73b1SJes Sorensen { 55b75a0282SPavel Dovgaluk qemu_system_shutdown_request(); 56b75a0282SPavel Dovgaluk /* Windows 7 kills application when the function returns. 57b75a0282SPavel Dovgaluk Sleep here to give QEMU a try for closing. 58b75a0282SPavel Dovgaluk Sleep period is 10000ms because Windows kills the program 59b75a0282SPavel Dovgaluk after 10 seconds anyway. */ 60b75a0282SPavel Dovgaluk Sleep(10000); 61b75a0282SPavel Dovgaluk 6269bd73b1SJes Sorensen return TRUE; 6369bd73b1SJes Sorensen } 6469bd73b1SJes Sorensen 650727b867SPaolo Bonzini static TIMECAPS mm_tc; 660727b867SPaolo Bonzini 670727b867SPaolo Bonzini static void os_undo_timer_resolution(void) 680727b867SPaolo Bonzini { 690727b867SPaolo Bonzini timeEndPeriod(mm_tc.wPeriodMin); 700727b867SPaolo Bonzini } 710727b867SPaolo Bonzini 72fe98ac14SJes Sorensen void os_setup_early_signal_handling(void) 7369bd73b1SJes Sorensen { 7469bd73b1SJes Sorensen SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE); 750727b867SPaolo Bonzini timeGetDevCaps(&mm_tc, sizeof(mm_tc)); 760727b867SPaolo Bonzini timeBeginPeriod(mm_tc.wPeriodMin); 770727b867SPaolo Bonzini atexit(os_undo_timer_resolution); 7869bd73b1SJes Sorensen } 796170540bSJes Sorensen 806170540bSJes Sorensen /* Look for support files in the same directory as the executable. */ 8110f5bff6SFam Zheng char *os_find_datadir(void) 826170540bSJes Sorensen { 8310f5bff6SFam Zheng return qemu_get_exec_dir(); 846170540bSJes Sorensen } 8559a5264bSJes Sorensen 866650b710SStefan Weil void os_set_line_buffering(void) 876650b710SStefan Weil { 886650b710SStefan Weil setbuf(stdout, NULL); 896650b710SStefan Weil setbuf(stderr, NULL); 906650b710SStefan Weil } 916650b710SStefan Weil 9259a5264bSJes Sorensen /* 9359a5264bSJes Sorensen * Parse OS specific command line options. 9459a5264bSJes Sorensen * return 0 if option handled, -1 otherwise 9559a5264bSJes Sorensen */ 9659a5264bSJes Sorensen void os_parse_cmd_args(int index, const char *optarg) 9759a5264bSJes Sorensen { 9859a5264bSJes Sorensen return; 9959a5264bSJes Sorensen } 100eb505be1SJes Sorensen 101bc4a957cSJes Sorensen int qemu_create_pidfile(const char *filename) 102bc4a957cSJes Sorensen { 103bc4a957cSJes Sorensen char buffer[128]; 104bc4a957cSJes Sorensen int len; 105bc4a957cSJes Sorensen HANDLE file; 106bc4a957cSJes Sorensen OVERLAPPED overlap; 107bc4a957cSJes Sorensen BOOL ret; 108bc4a957cSJes Sorensen memset(&overlap, 0, sizeof(overlap)); 109bc4a957cSJes Sorensen 110bc4a957cSJes Sorensen file = CreateFile(filename, GENERIC_WRITE, FILE_SHARE_READ, NULL, 111bc4a957cSJes Sorensen OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); 112bc4a957cSJes Sorensen 113bc4a957cSJes Sorensen if (file == INVALID_HANDLE_VALUE) { 114bc4a957cSJes Sorensen return -1; 115bc4a957cSJes Sorensen } 11659ad3403SStefan Weil len = snprintf(buffer, sizeof(buffer), "%d\n", getpid()); 117bfc763fcSFabien Chouteau ret = WriteFile(file, (LPCVOID)buffer, (DWORD)len, 118bfc763fcSFabien Chouteau NULL, &overlap); 119bfc763fcSFabien Chouteau CloseHandle(file); 120bc4a957cSJes Sorensen if (ret == 0) { 121bc4a957cSJes Sorensen return -1; 122bc4a957cSJes Sorensen } 123bc4a957cSJes Sorensen return 0; 124bc4a957cSJes Sorensen } 125