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1 | 19113504 | Jes Sorensen | /*
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2 | 19113504 | Jes Sorensen | * os-win32.c
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3 | 19113504 | Jes Sorensen | *
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4 | 19113504 | Jes Sorensen | * Copyright (c) 2003-2008 Fabrice Bellard
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5 | 19113504 | Jes Sorensen | * Copyright (c) 2010 Red Hat, Inc.
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6 | 19113504 | Jes Sorensen | *
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7 | 19113504 | Jes Sorensen | * Permission is hereby granted, free of charge, to any person obtaining a copy
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8 | 19113504 | Jes Sorensen | * of this software and associated documentation files (the "Software"), to deal
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9 | 19113504 | Jes Sorensen | * in the Software without restriction, including without limitation the rights
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10 | 19113504 | Jes Sorensen | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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11 | 19113504 | Jes Sorensen | * copies of the Software, and to permit persons to whom the Software is
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12 | 19113504 | Jes Sorensen | * furnished to do so, subject to the following conditions:
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13 | 19113504 | Jes Sorensen | *
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14 | 19113504 | Jes Sorensen | * The above copyright notice and this permission notice shall be included in
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15 | 19113504 | Jes Sorensen | * all copies or substantial portions of the Software.
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16 | 19113504 | Jes Sorensen | *
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17 | 19113504 | Jes Sorensen | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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18 | 19113504 | Jes Sorensen | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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19 | 19113504 | Jes Sorensen | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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20 | 19113504 | Jes Sorensen | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 | 19113504 | Jes Sorensen | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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22 | 19113504 | Jes Sorensen | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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23 | 19113504 | Jes Sorensen | * THE SOFTWARE.
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24 | 19113504 | Jes Sorensen | */
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25 | 19113504 | Jes Sorensen | #include <windows.h> |
26 | 19113504 | Jes Sorensen | #include <unistd.h> |
27 | 19113504 | Jes Sorensen | #include <fcntl.h> |
28 | 19113504 | Jes Sorensen | #include <signal.h> |
29 | 19113504 | Jes Sorensen | #include <time.h> |
30 | 19113504 | Jes Sorensen | #include <errno.h> |
31 | 19113504 | Jes Sorensen | #include <sys/time.h> |
32 | 19113504 | Jes Sorensen | #include "config-host.h" |
33 | 19113504 | Jes Sorensen | #include "sysemu.h" |
34 | 59a5264b | Jes Sorensen | #include "qemu-options.h" |
35 | 19113504 | Jes Sorensen | |
36 | 19113504 | Jes Sorensen | /***********************************************************/
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37 | 0a1574bb | Stefan Weil | /* Functions missing in mingw */
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38 | 0a1574bb | Stefan Weil | |
39 | 0a1574bb | Stefan Weil | int setenv(const char *name, const char *value, int overwrite) |
40 | 0a1574bb | Stefan Weil | { |
41 | 0a1574bb | Stefan Weil | int result = 0; |
42 | 0a1574bb | Stefan Weil | if (overwrite || !getenv(name)) {
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43 | 0a1574bb | Stefan Weil | size_t length = strlen(name) + strlen(value) + 2;
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44 | 0a1574bb | Stefan Weil | char *string = qemu_malloc(length);
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45 | 0a1574bb | Stefan Weil | snprintf(string, length, "%s=%s", name, value);
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46 | 0a1574bb | Stefan Weil | result = putenv(string); |
47 | 0a1574bb | Stefan Weil | } |
48 | 0a1574bb | Stefan Weil | return result;
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49 | 0a1574bb | Stefan Weil | } |
50 | 0a1574bb | Stefan Weil | |
51 | 0a1574bb | Stefan Weil | /***********************************************************/
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52 | 19113504 | Jes Sorensen | /* Polling handling */
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53 | 19113504 | Jes Sorensen | |
54 | 19113504 | Jes Sorensen | typedef struct PollingEntry { |
55 | 19113504 | Jes Sorensen | PollingFunc *func; |
56 | 19113504 | Jes Sorensen | void *opaque;
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57 | 19113504 | Jes Sorensen | struct PollingEntry *next;
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58 | 19113504 | Jes Sorensen | } PollingEntry; |
59 | 19113504 | Jes Sorensen | |
60 | 19113504 | Jes Sorensen | static PollingEntry *first_polling_entry;
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61 | 19113504 | Jes Sorensen | |
62 | 19113504 | Jes Sorensen | int qemu_add_polling_cb(PollingFunc *func, void *opaque) |
63 | 19113504 | Jes Sorensen | { |
64 | 19113504 | Jes Sorensen | PollingEntry **ppe, *pe; |
65 | 19113504 | Jes Sorensen | pe = qemu_mallocz(sizeof(PollingEntry));
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66 | 19113504 | Jes Sorensen | pe->func = func; |
67 | 19113504 | Jes Sorensen | pe->opaque = opaque; |
68 | 19113504 | Jes Sorensen | for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next); |
69 | 19113504 | Jes Sorensen | *ppe = pe; |
70 | 19113504 | Jes Sorensen | return 0; |
71 | 19113504 | Jes Sorensen | } |
72 | 19113504 | Jes Sorensen | |
73 | 19113504 | Jes Sorensen | void qemu_del_polling_cb(PollingFunc *func, void *opaque) |
74 | 19113504 | Jes Sorensen | { |
75 | 19113504 | Jes Sorensen | PollingEntry **ppe, *pe; |
76 | 19113504 | Jes Sorensen | for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) { |
77 | 19113504 | Jes Sorensen | pe = *ppe; |
78 | 19113504 | Jes Sorensen | if (pe->func == func && pe->opaque == opaque) {
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79 | 19113504 | Jes Sorensen | *ppe = pe->next; |
80 | 19113504 | Jes Sorensen | qemu_free(pe); |
81 | 19113504 | Jes Sorensen | break;
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82 | 19113504 | Jes Sorensen | } |
83 | 19113504 | Jes Sorensen | } |
84 | 19113504 | Jes Sorensen | } |
85 | 19113504 | Jes Sorensen | |
86 | 19113504 | Jes Sorensen | /***********************************************************/
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87 | 19113504 | Jes Sorensen | /* Wait objects support */
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88 | 19113504 | Jes Sorensen | typedef struct WaitObjects { |
89 | 19113504 | Jes Sorensen | int num;
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90 | 19113504 | Jes Sorensen | HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
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91 | 19113504 | Jes Sorensen | WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
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92 | 19113504 | Jes Sorensen | void *opaque[MAXIMUM_WAIT_OBJECTS + 1]; |
93 | 19113504 | Jes Sorensen | } WaitObjects; |
94 | 19113504 | Jes Sorensen | |
95 | 19113504 | Jes Sorensen | static WaitObjects wait_objects = {0}; |
96 | 19113504 | Jes Sorensen | |
97 | 19113504 | Jes Sorensen | int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque) |
98 | 19113504 | Jes Sorensen | { |
99 | 19113504 | Jes Sorensen | WaitObjects *w = &wait_objects; |
100 | 19113504 | Jes Sorensen | |
101 | 19113504 | Jes Sorensen | if (w->num >= MAXIMUM_WAIT_OBJECTS)
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102 | 19113504 | Jes Sorensen | return -1; |
103 | 19113504 | Jes Sorensen | w->events[w->num] = handle; |
104 | 19113504 | Jes Sorensen | w->func[w->num] = func; |
105 | 19113504 | Jes Sorensen | w->opaque[w->num] = opaque; |
106 | 19113504 | Jes Sorensen | w->num++; |
107 | 19113504 | Jes Sorensen | return 0; |
108 | 19113504 | Jes Sorensen | } |
109 | 19113504 | Jes Sorensen | |
110 | 19113504 | Jes Sorensen | void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque) |
111 | 19113504 | Jes Sorensen | { |
112 | 19113504 | Jes Sorensen | int i, found;
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113 | 19113504 | Jes Sorensen | WaitObjects *w = &wait_objects; |
114 | 19113504 | Jes Sorensen | |
115 | 19113504 | Jes Sorensen | found = 0;
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116 | 19113504 | Jes Sorensen | for (i = 0; i < w->num; i++) { |
117 | 19113504 | Jes Sorensen | if (w->events[i] == handle)
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118 | 19113504 | Jes Sorensen | found = 1;
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119 | 19113504 | Jes Sorensen | if (found) {
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120 | 19113504 | Jes Sorensen | w->events[i] = w->events[i + 1];
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121 | 19113504 | Jes Sorensen | w->func[i] = w->func[i + 1];
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122 | 19113504 | Jes Sorensen | w->opaque[i] = w->opaque[i + 1];
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123 | 19113504 | Jes Sorensen | } |
124 | 19113504 | Jes Sorensen | } |
125 | 19113504 | Jes Sorensen | if (found)
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126 | 19113504 | Jes Sorensen | w->num--; |
127 | 19113504 | Jes Sorensen | } |
128 | 0d93ca7c | Jes Sorensen | |
129 | 0d93ca7c | Jes Sorensen | void os_host_main_loop_wait(int *timeout) |
130 | 0d93ca7c | Jes Sorensen | { |
131 | 0d93ca7c | Jes Sorensen | int ret, ret2, i;
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132 | 0d93ca7c | Jes Sorensen | PollingEntry *pe; |
133 | 0d93ca7c | Jes Sorensen | |
134 | 0d93ca7c | Jes Sorensen | /* XXX: need to suppress polling by better using win32 events */
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135 | 0d93ca7c | Jes Sorensen | ret = 0;
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136 | 0d93ca7c | Jes Sorensen | for(pe = first_polling_entry; pe != NULL; pe = pe->next) { |
137 | 0d93ca7c | Jes Sorensen | ret |= pe->func(pe->opaque); |
138 | 0d93ca7c | Jes Sorensen | } |
139 | 0d93ca7c | Jes Sorensen | if (ret == 0) { |
140 | 0d93ca7c | Jes Sorensen | int err;
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141 | 0d93ca7c | Jes Sorensen | WaitObjects *w = &wait_objects; |
142 | 0d93ca7c | Jes Sorensen | |
143 | 0d93ca7c | Jes Sorensen | ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout); |
144 | 0d93ca7c | Jes Sorensen | if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) { |
145 | 0d93ca7c | Jes Sorensen | if (w->func[ret - WAIT_OBJECT_0])
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146 | 0d93ca7c | Jes Sorensen | w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]); |
147 | 0d93ca7c | Jes Sorensen | |
148 | 0d93ca7c | Jes Sorensen | /* Check for additional signaled events */
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149 | 0d93ca7c | Jes Sorensen | for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) { |
150 | 0d93ca7c | Jes Sorensen | |
151 | 0d93ca7c | Jes Sorensen | /* Check if event is signaled */
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152 | 0d93ca7c | Jes Sorensen | ret2 = WaitForSingleObject(w->events[i], 0);
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153 | 0d93ca7c | Jes Sorensen | if(ret2 == WAIT_OBJECT_0) {
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154 | 0d93ca7c | Jes Sorensen | if (w->func[i])
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155 | 0d93ca7c | Jes Sorensen | w->func[i](w->opaque[i]); |
156 | 0d93ca7c | Jes Sorensen | } else if (ret2 == WAIT_TIMEOUT) { |
157 | 0d93ca7c | Jes Sorensen | } else {
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158 | 0d93ca7c | Jes Sorensen | err = GetLastError(); |
159 | 0d93ca7c | Jes Sorensen | fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
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160 | 0d93ca7c | Jes Sorensen | } |
161 | 0d93ca7c | Jes Sorensen | } |
162 | 0d93ca7c | Jes Sorensen | } else if (ret == WAIT_TIMEOUT) { |
163 | 0d93ca7c | Jes Sorensen | } else {
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164 | 0d93ca7c | Jes Sorensen | err = GetLastError(); |
165 | 0d93ca7c | Jes Sorensen | fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
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166 | 0d93ca7c | Jes Sorensen | } |
167 | 0d93ca7c | Jes Sorensen | } |
168 | 0d93ca7c | Jes Sorensen | |
169 | 0d93ca7c | Jes Sorensen | *timeout = 0;
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170 | 0d93ca7c | Jes Sorensen | } |
171 | 69bd73b1 | Jes Sorensen | |
172 | 69bd73b1 | Jes Sorensen | static BOOL WINAPI qemu_ctrl_handler(DWORD type)
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173 | 69bd73b1 | Jes Sorensen | { |
174 | 69bd73b1 | Jes Sorensen | exit(STATUS_CONTROL_C_EXIT); |
175 | 69bd73b1 | Jes Sorensen | return TRUE;
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176 | 69bd73b1 | Jes Sorensen | } |
177 | 69bd73b1 | Jes Sorensen | |
178 | fe98ac14 | Jes Sorensen | void os_setup_early_signal_handling(void) |
179 | 69bd73b1 | Jes Sorensen | { |
180 | 69bd73b1 | Jes Sorensen | /* Note: cpu_interrupt() is currently not SMP safe, so we force
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181 | 69bd73b1 | Jes Sorensen | QEMU to run on a single CPU */
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182 | 69bd73b1 | Jes Sorensen | HANDLE h; |
183 | 69bd73b1 | Jes Sorensen | DWORD mask, smask; |
184 | 69bd73b1 | Jes Sorensen | int i;
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185 | 69bd73b1 | Jes Sorensen | |
186 | 69bd73b1 | Jes Sorensen | SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE); |
187 | 69bd73b1 | Jes Sorensen | |
188 | 69bd73b1 | Jes Sorensen | h = GetCurrentProcess(); |
189 | 69bd73b1 | Jes Sorensen | if (GetProcessAffinityMask(h, &mask, &smask)) {
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190 | 69bd73b1 | Jes Sorensen | for(i = 0; i < 32; i++) { |
191 | 69bd73b1 | Jes Sorensen | if (mask & (1 << i)) |
192 | 69bd73b1 | Jes Sorensen | break;
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193 | 69bd73b1 | Jes Sorensen | } |
194 | 69bd73b1 | Jes Sorensen | if (i != 32) { |
195 | 69bd73b1 | Jes Sorensen | mask = 1 << i;
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196 | 69bd73b1 | Jes Sorensen | SetProcessAffinityMask(h, mask); |
197 | 69bd73b1 | Jes Sorensen | } |
198 | 69bd73b1 | Jes Sorensen | } |
199 | 69bd73b1 | Jes Sorensen | } |
200 | 6170540b | Jes Sorensen | |
201 | 6170540b | Jes Sorensen | /* Look for support files in the same directory as the executable. */
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202 | 6170540b | Jes Sorensen | char *os_find_datadir(const char *argv0) |
203 | 6170540b | Jes Sorensen | { |
204 | 6170540b | Jes Sorensen | char *p;
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205 | 6170540b | Jes Sorensen | char buf[MAX_PATH];
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206 | 6170540b | Jes Sorensen | DWORD len; |
207 | 6170540b | Jes Sorensen | |
208 | 6170540b | Jes Sorensen | len = GetModuleFileName(NULL, buf, sizeof(buf) - 1); |
209 | 6170540b | Jes Sorensen | if (len == 0) { |
210 | 6170540b | Jes Sorensen | return NULL; |
211 | 6170540b | Jes Sorensen | } |
212 | 6170540b | Jes Sorensen | |
213 | 6170540b | Jes Sorensen | buf[len] = 0;
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214 | 6170540b | Jes Sorensen | p = buf + len - 1;
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215 | 6170540b | Jes Sorensen | while (p != buf && *p != '\\') |
216 | 6170540b | Jes Sorensen | p--; |
217 | 6170540b | Jes Sorensen | *p = 0;
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218 | 6170540b | Jes Sorensen | if (access(buf, R_OK) == 0) { |
219 | 6170540b | Jes Sorensen | return qemu_strdup(buf);
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220 | 6170540b | Jes Sorensen | } |
221 | 6170540b | Jes Sorensen | return NULL; |
222 | 6170540b | Jes Sorensen | } |
223 | 59a5264b | Jes Sorensen | |
224 | 6650b710 | Stefan Weil | void os_set_line_buffering(void) |
225 | 6650b710 | Stefan Weil | { |
226 | 6650b710 | Stefan Weil | setbuf(stdout, NULL);
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227 | 6650b710 | Stefan Weil | setbuf(stderr, NULL);
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228 | 6650b710 | Stefan Weil | } |
229 | 6650b710 | Stefan Weil | |
230 | 59a5264b | Jes Sorensen | /*
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231 | 59a5264b | Jes Sorensen | * Parse OS specific command line options.
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232 | 59a5264b | Jes Sorensen | * return 0 if option handled, -1 otherwise
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233 | 59a5264b | Jes Sorensen | */
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234 | 59a5264b | Jes Sorensen | void os_parse_cmd_args(int index, const char *optarg) |
235 | 59a5264b | Jes Sorensen | { |
236 | 59a5264b | Jes Sorensen | return;
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237 | 59a5264b | Jes Sorensen | } |
238 | eb505be1 | Jes Sorensen | |
239 | eb505be1 | Jes Sorensen | void os_pidfile_error(void) |
240 | eb505be1 | Jes Sorensen | { |
241 | eb505be1 | Jes Sorensen | fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
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242 | eb505be1 | Jes Sorensen | } |
243 | bc4a957c | Jes Sorensen | |
244 | bc4a957c | Jes Sorensen | int qemu_create_pidfile(const char *filename) |
245 | bc4a957c | Jes Sorensen | { |
246 | bc4a957c | Jes Sorensen | char buffer[128]; |
247 | bc4a957c | Jes Sorensen | int len;
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248 | bc4a957c | Jes Sorensen | HANDLE file; |
249 | bc4a957c | Jes Sorensen | OVERLAPPED overlap; |
250 | bc4a957c | Jes Sorensen | BOOL ret; |
251 | bc4a957c | Jes Sorensen | memset(&overlap, 0, sizeof(overlap)); |
252 | bc4a957c | Jes Sorensen | |
253 | bc4a957c | Jes Sorensen | file = CreateFile(filename, GENERIC_WRITE, FILE_SHARE_READ, NULL,
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254 | bc4a957c | Jes Sorensen | OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
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255 | bc4a957c | Jes Sorensen | |
256 | bc4a957c | Jes Sorensen | if (file == INVALID_HANDLE_VALUE) {
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257 | bc4a957c | Jes Sorensen | return -1; |
258 | bc4a957c | Jes Sorensen | } |
259 | bc4a957c | Jes Sorensen | len = snprintf(buffer, sizeof(buffer), "%ld\n", (long)getpid()); |
260 | bc4a957c | Jes Sorensen | ret = WriteFileEx(file, (LPCVOID)buffer, (DWORD)len, |
261 | bc4a957c | Jes Sorensen | &overlap, NULL);
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262 | bc4a957c | Jes Sorensen | if (ret == 0) { |
263 | bc4a957c | Jes Sorensen | return -1; |
264 | bc4a957c | Jes Sorensen | } |
265 | bc4a957c | Jes Sorensen | return 0; |
266 | bc4a957c | Jes Sorensen | } |