Jes Sorensen | 1911350 | 2010-06-10 11:42:17 +0200 | [diff] [blame] | 1 | /* |
| 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> |
| 26 | #include <unistd.h> |
| 27 | #include <fcntl.h> |
| 28 | #include <signal.h> |
| 29 | #include <time.h> |
| 30 | #include <errno.h> |
| 31 | #include <sys/time.h> |
| 32 | #include "config-host.h" |
| 33 | #include "sysemu.h" |
Jes Sorensen | 59a5264 | 2010-06-10 11:42:25 +0200 | [diff] [blame] | 34 | #include "qemu-options.h" |
Jes Sorensen | 1911350 | 2010-06-10 11:42:17 +0200 | [diff] [blame] | 35 | |
| 36 | /***********************************************************/ |
Stefan Weil | 0a1574b | 2010-07-01 00:47:49 +0000 | [diff] [blame] | 37 | /* Functions missing in mingw */ |
| 38 | |
| 39 | int setenv(const char *name, const char *value, int overwrite) |
| 40 | { |
| 41 | int result = 0; |
| 42 | if (overwrite || !getenv(name)) { |
| 43 | size_t length = strlen(name) + strlen(value) + 2; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 44 | char *string = g_malloc(length); |
Stefan Weil | 0a1574b | 2010-07-01 00:47:49 +0000 | [diff] [blame] | 45 | snprintf(string, length, "%s=%s", name, value); |
| 46 | result = putenv(string); |
Zhi Hui Li | 91a9ece | 2011-11-24 16:27:52 +0800 | [diff] [blame] | 47 | |
| 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. |
| 52 | */ |
| 53 | g_free(string); |
Stefan Weil | 0a1574b | 2010-07-01 00:47:49 +0000 | [diff] [blame] | 54 | } |
| 55 | return result; |
| 56 | } |
| 57 | |
Jes Sorensen | 69bd73b | 2010-06-10 11:42:20 +0200 | [diff] [blame] | 58 | static BOOL WINAPI qemu_ctrl_handler(DWORD type) |
| 59 | { |
| 60 | exit(STATUS_CONTROL_C_EXIT); |
| 61 | return TRUE; |
| 62 | } |
| 63 | |
Jes Sorensen | fe98ac1 | 2010-06-10 11:42:21 +0200 | [diff] [blame] | 64 | void os_setup_early_signal_handling(void) |
Jes Sorensen | 69bd73b | 2010-06-10 11:42:20 +0200 | [diff] [blame] | 65 | { |
| 66 | /* Note: cpu_interrupt() is currently not SMP safe, so we force |
| 67 | QEMU to run on a single CPU */ |
| 68 | HANDLE h; |
Stefan Weil | f45a110 | 2011-02-05 20:59:49 +0100 | [diff] [blame] | 69 | DWORD_PTR mask, smask; |
Jes Sorensen | 69bd73b | 2010-06-10 11:42:20 +0200 | [diff] [blame] | 70 | int i; |
| 71 | |
| 72 | SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE); |
| 73 | |
| 74 | h = GetCurrentProcess(); |
| 75 | if (GetProcessAffinityMask(h, &mask, &smask)) { |
| 76 | for(i = 0; i < 32; i++) { |
| 77 | if (mask & (1 << i)) |
| 78 | break; |
| 79 | } |
| 80 | if (i != 32) { |
| 81 | mask = 1 << i; |
| 82 | SetProcessAffinityMask(h, mask); |
| 83 | } |
| 84 | } |
| 85 | } |
Jes Sorensen | 6170540 | 2010-06-10 11:42:23 +0200 | [diff] [blame] | 86 | |
| 87 | /* Look for support files in the same directory as the executable. */ |
| 88 | char *os_find_datadir(const char *argv0) |
| 89 | { |
| 90 | char *p; |
| 91 | char buf[MAX_PATH]; |
| 92 | DWORD len; |
| 93 | |
| 94 | len = GetModuleFileName(NULL, buf, sizeof(buf) - 1); |
| 95 | if (len == 0) { |
| 96 | return NULL; |
| 97 | } |
| 98 | |
| 99 | buf[len] = 0; |
| 100 | p = buf + len - 1; |
| 101 | while (p != buf && *p != '\\') |
| 102 | p--; |
| 103 | *p = 0; |
| 104 | if (access(buf, R_OK) == 0) { |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 105 | return g_strdup(buf); |
Jes Sorensen | 6170540 | 2010-06-10 11:42:23 +0200 | [diff] [blame] | 106 | } |
| 107 | return NULL; |
| 108 | } |
Jes Sorensen | 59a5264 | 2010-06-10 11:42:25 +0200 | [diff] [blame] | 109 | |
Stefan Weil | 6650b71 | 2010-10-07 18:55:48 +0200 | [diff] [blame] | 110 | void os_set_line_buffering(void) |
| 111 | { |
| 112 | setbuf(stdout, NULL); |
| 113 | setbuf(stderr, NULL); |
| 114 | } |
| 115 | |
Jes Sorensen | 59a5264 | 2010-06-10 11:42:25 +0200 | [diff] [blame] | 116 | /* |
| 117 | * Parse OS specific command line options. |
| 118 | * return 0 if option handled, -1 otherwise |
| 119 | */ |
| 120 | void os_parse_cmd_args(int index, const char *optarg) |
| 121 | { |
| 122 | return; |
| 123 | } |
Jes Sorensen | eb505be | 2010-06-10 11:42:28 +0200 | [diff] [blame] | 124 | |
| 125 | void os_pidfile_error(void) |
| 126 | { |
| 127 | fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno)); |
| 128 | } |
Jes Sorensen | bc4a957 | 2010-10-26 10:39:25 +0200 | [diff] [blame] | 129 | |
| 130 | int qemu_create_pidfile(const char *filename) |
| 131 | { |
| 132 | char buffer[128]; |
| 133 | int len; |
| 134 | HANDLE file; |
| 135 | OVERLAPPED overlap; |
| 136 | BOOL ret; |
| 137 | memset(&overlap, 0, sizeof(overlap)); |
| 138 | |
| 139 | file = CreateFile(filename, GENERIC_WRITE, FILE_SHARE_READ, NULL, |
Fabien Chouteau | bfc763f | 2011-11-07 15:36:14 +0100 | [diff] [blame] | 140 | OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); |
Jes Sorensen | bc4a957 | 2010-10-26 10:39:25 +0200 | [diff] [blame] | 141 | |
| 142 | if (file == INVALID_HANDLE_VALUE) { |
| 143 | return -1; |
| 144 | } |
Stefan Weil | 59ad340 | 2011-07-15 21:38:14 +0200 | [diff] [blame] | 145 | len = snprintf(buffer, sizeof(buffer), "%d\n", getpid()); |
Fabien Chouteau | bfc763f | 2011-11-07 15:36:14 +0100 | [diff] [blame] | 146 | ret = WriteFile(file, (LPCVOID)buffer, (DWORD)len, |
| 147 | NULL, &overlap); |
| 148 | CloseHandle(file); |
Jes Sorensen | bc4a957 | 2010-10-26 10:39:25 +0200 | [diff] [blame] | 149 | if (ret == 0) { |
| 150 | return -1; |
| 151 | } |
| 152 | return 0; |
| 153 | } |