root / os-win32.c @ a88790a1
History | View | Annotate | Download (6 kB)
1 | 19113504 | Jes Sorensen | /*
|
---|---|---|---|
2 | 19113504 | Jes Sorensen | * os-win32.c
|
3 | 19113504 | Jes Sorensen | *
|
4 | 19113504 | Jes Sorensen | * Copyright (c) 2003-2008 Fabrice Bellard
|
5 | 19113504 | Jes Sorensen | * Copyright (c) 2010 Red Hat, Inc.
|
6 | 19113504 | Jes Sorensen | *
|
7 | 19113504 | Jes Sorensen | * Permission is hereby granted, free of charge, to any person obtaining a copy
|
8 | 19113504 | Jes Sorensen | * of this software and associated documentation files (the "Software"), to deal
|
9 | 19113504 | Jes Sorensen | * in the Software without restriction, including without limitation the rights
|
10 | 19113504 | Jes Sorensen | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
11 | 19113504 | Jes Sorensen | * copies of the Software, and to permit persons to whom the Software is
|
12 | 19113504 | Jes Sorensen | * furnished to do so, subject to the following conditions:
|
13 | 19113504 | Jes Sorensen | *
|
14 | 19113504 | Jes Sorensen | * The above copyright notice and this permission notice shall be included in
|
15 | 19113504 | Jes Sorensen | * all copies or substantial portions of the Software.
|
16 | 19113504 | Jes Sorensen | *
|
17 | 19113504 | Jes Sorensen | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
18 | 19113504 | Jes Sorensen | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
19 | 19113504 | Jes Sorensen | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
20 | 19113504 | Jes Sorensen | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
21 | 19113504 | Jes Sorensen | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
22 | 19113504 | Jes Sorensen | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
23 | 19113504 | Jes Sorensen | * THE SOFTWARE.
|
24 | 19113504 | Jes Sorensen | */
|
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 | /***********************************************************/
|
37 | 19113504 | Jes Sorensen | /* Polling handling */
|
38 | 19113504 | Jes Sorensen | |
39 | 19113504 | Jes Sorensen | typedef struct PollingEntry { |
40 | 19113504 | Jes Sorensen | PollingFunc *func; |
41 | 19113504 | Jes Sorensen | void *opaque;
|
42 | 19113504 | Jes Sorensen | struct PollingEntry *next;
|
43 | 19113504 | Jes Sorensen | } PollingEntry; |
44 | 19113504 | Jes Sorensen | |
45 | 19113504 | Jes Sorensen | static PollingEntry *first_polling_entry;
|
46 | 19113504 | Jes Sorensen | |
47 | 19113504 | Jes Sorensen | int qemu_add_polling_cb(PollingFunc *func, void *opaque) |
48 | 19113504 | Jes Sorensen | { |
49 | 19113504 | Jes Sorensen | PollingEntry **ppe, *pe; |
50 | 19113504 | Jes Sorensen | pe = qemu_mallocz(sizeof(PollingEntry));
|
51 | 19113504 | Jes Sorensen | pe->func = func; |
52 | 19113504 | Jes Sorensen | pe->opaque = opaque; |
53 | 19113504 | Jes Sorensen | for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next); |
54 | 19113504 | Jes Sorensen | *ppe = pe; |
55 | 19113504 | Jes Sorensen | return 0; |
56 | 19113504 | Jes Sorensen | } |
57 | 19113504 | Jes Sorensen | |
58 | 19113504 | Jes Sorensen | void qemu_del_polling_cb(PollingFunc *func, void *opaque) |
59 | 19113504 | Jes Sorensen | { |
60 | 19113504 | Jes Sorensen | PollingEntry **ppe, *pe; |
61 | 19113504 | Jes Sorensen | for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) { |
62 | 19113504 | Jes Sorensen | pe = *ppe; |
63 | 19113504 | Jes Sorensen | if (pe->func == func && pe->opaque == opaque) {
|
64 | 19113504 | Jes Sorensen | *ppe = pe->next; |
65 | 19113504 | Jes Sorensen | qemu_free(pe); |
66 | 19113504 | Jes Sorensen | break;
|
67 | 19113504 | Jes Sorensen | } |
68 | 19113504 | Jes Sorensen | } |
69 | 19113504 | Jes Sorensen | } |
70 | 19113504 | Jes Sorensen | |
71 | 19113504 | Jes Sorensen | /***********************************************************/
|
72 | 19113504 | Jes Sorensen | /* Wait objects support */
|
73 | 19113504 | Jes Sorensen | typedef struct WaitObjects { |
74 | 19113504 | Jes Sorensen | int num;
|
75 | 19113504 | Jes Sorensen | HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
|
76 | 19113504 | Jes Sorensen | WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
|
77 | 19113504 | Jes Sorensen | void *opaque[MAXIMUM_WAIT_OBJECTS + 1]; |
78 | 19113504 | Jes Sorensen | } WaitObjects; |
79 | 19113504 | Jes Sorensen | |
80 | 19113504 | Jes Sorensen | static WaitObjects wait_objects = {0}; |
81 | 19113504 | Jes Sorensen | |
82 | 19113504 | Jes Sorensen | int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque) |
83 | 19113504 | Jes Sorensen | { |
84 | 19113504 | Jes Sorensen | WaitObjects *w = &wait_objects; |
85 | 19113504 | Jes Sorensen | |
86 | 19113504 | Jes Sorensen | if (w->num >= MAXIMUM_WAIT_OBJECTS)
|
87 | 19113504 | Jes Sorensen | return -1; |
88 | 19113504 | Jes Sorensen | w->events[w->num] = handle; |
89 | 19113504 | Jes Sorensen | w->func[w->num] = func; |
90 | 19113504 | Jes Sorensen | w->opaque[w->num] = opaque; |
91 | 19113504 | Jes Sorensen | w->num++; |
92 | 19113504 | Jes Sorensen | return 0; |
93 | 19113504 | Jes Sorensen | } |
94 | 19113504 | Jes Sorensen | |
95 | 19113504 | Jes Sorensen | void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque) |
96 | 19113504 | Jes Sorensen | { |
97 | 19113504 | Jes Sorensen | int i, found;
|
98 | 19113504 | Jes Sorensen | WaitObjects *w = &wait_objects; |
99 | 19113504 | Jes Sorensen | |
100 | 19113504 | Jes Sorensen | found = 0;
|
101 | 19113504 | Jes Sorensen | for (i = 0; i < w->num; i++) { |
102 | 19113504 | Jes Sorensen | if (w->events[i] == handle)
|
103 | 19113504 | Jes Sorensen | found = 1;
|
104 | 19113504 | Jes Sorensen | if (found) {
|
105 | 19113504 | Jes Sorensen | w->events[i] = w->events[i + 1];
|
106 | 19113504 | Jes Sorensen | w->func[i] = w->func[i + 1];
|
107 | 19113504 | Jes Sorensen | w->opaque[i] = w->opaque[i + 1];
|
108 | 19113504 | Jes Sorensen | } |
109 | 19113504 | Jes Sorensen | } |
110 | 19113504 | Jes Sorensen | if (found)
|
111 | 19113504 | Jes Sorensen | w->num--; |
112 | 19113504 | Jes Sorensen | } |
113 | 0d93ca7c | Jes Sorensen | |
114 | 0d93ca7c | Jes Sorensen | void os_host_main_loop_wait(int *timeout) |
115 | 0d93ca7c | Jes Sorensen | { |
116 | 0d93ca7c | Jes Sorensen | int ret, ret2, i;
|
117 | 0d93ca7c | Jes Sorensen | PollingEntry *pe; |
118 | 0d93ca7c | Jes Sorensen | |
119 | 0d93ca7c | Jes Sorensen | /* XXX: need to suppress polling by better using win32 events */
|
120 | 0d93ca7c | Jes Sorensen | ret = 0;
|
121 | 0d93ca7c | Jes Sorensen | for(pe = first_polling_entry; pe != NULL; pe = pe->next) { |
122 | 0d93ca7c | Jes Sorensen | ret |= pe->func(pe->opaque); |
123 | 0d93ca7c | Jes Sorensen | } |
124 | 0d93ca7c | Jes Sorensen | if (ret == 0) { |
125 | 0d93ca7c | Jes Sorensen | int err;
|
126 | 0d93ca7c | Jes Sorensen | WaitObjects *w = &wait_objects; |
127 | 0d93ca7c | Jes Sorensen | |
128 | 0d93ca7c | Jes Sorensen | ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout); |
129 | 0d93ca7c | Jes Sorensen | if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) { |
130 | 0d93ca7c | Jes Sorensen | if (w->func[ret - WAIT_OBJECT_0])
|
131 | 0d93ca7c | Jes Sorensen | w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]); |
132 | 0d93ca7c | Jes Sorensen | |
133 | 0d93ca7c | Jes Sorensen | /* Check for additional signaled events */
|
134 | 0d93ca7c | Jes Sorensen | for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) { |
135 | 0d93ca7c | Jes Sorensen | |
136 | 0d93ca7c | Jes Sorensen | /* Check if event is signaled */
|
137 | 0d93ca7c | Jes Sorensen | ret2 = WaitForSingleObject(w->events[i], 0);
|
138 | 0d93ca7c | Jes Sorensen | if(ret2 == WAIT_OBJECT_0) {
|
139 | 0d93ca7c | Jes Sorensen | if (w->func[i])
|
140 | 0d93ca7c | Jes Sorensen | w->func[i](w->opaque[i]); |
141 | 0d93ca7c | Jes Sorensen | } else if (ret2 == WAIT_TIMEOUT) { |
142 | 0d93ca7c | Jes Sorensen | } else {
|
143 | 0d93ca7c | Jes Sorensen | err = GetLastError(); |
144 | 0d93ca7c | Jes Sorensen | fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
|
145 | 0d93ca7c | Jes Sorensen | } |
146 | 0d93ca7c | Jes Sorensen | } |
147 | 0d93ca7c | Jes Sorensen | } else if (ret == WAIT_TIMEOUT) { |
148 | 0d93ca7c | Jes Sorensen | } else {
|
149 | 0d93ca7c | Jes Sorensen | err = GetLastError(); |
150 | 0d93ca7c | Jes Sorensen | fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
|
151 | 0d93ca7c | Jes Sorensen | } |
152 | 0d93ca7c | Jes Sorensen | } |
153 | 0d93ca7c | Jes Sorensen | |
154 | 0d93ca7c | Jes Sorensen | *timeout = 0;
|
155 | 0d93ca7c | Jes Sorensen | } |
156 | 69bd73b1 | Jes Sorensen | |
157 | 69bd73b1 | Jes Sorensen | static BOOL WINAPI qemu_ctrl_handler(DWORD type)
|
158 | 69bd73b1 | Jes Sorensen | { |
159 | 69bd73b1 | Jes Sorensen | exit(STATUS_CONTROL_C_EXIT); |
160 | 69bd73b1 | Jes Sorensen | return TRUE;
|
161 | 69bd73b1 | Jes Sorensen | } |
162 | 69bd73b1 | Jes Sorensen | |
163 | fe98ac14 | Jes Sorensen | void os_setup_early_signal_handling(void) |
164 | 69bd73b1 | Jes Sorensen | { |
165 | 69bd73b1 | Jes Sorensen | /* Note: cpu_interrupt() is currently not SMP safe, so we force
|
166 | 69bd73b1 | Jes Sorensen | QEMU to run on a single CPU */
|
167 | 69bd73b1 | Jes Sorensen | HANDLE h; |
168 | 69bd73b1 | Jes Sorensen | DWORD mask, smask; |
169 | 69bd73b1 | Jes Sorensen | int i;
|
170 | 69bd73b1 | Jes Sorensen | |
171 | 69bd73b1 | Jes Sorensen | SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE); |
172 | 69bd73b1 | Jes Sorensen | |
173 | 69bd73b1 | Jes Sorensen | h = GetCurrentProcess(); |
174 | 69bd73b1 | Jes Sorensen | if (GetProcessAffinityMask(h, &mask, &smask)) {
|
175 | 69bd73b1 | Jes Sorensen | for(i = 0; i < 32; i++) { |
176 | 69bd73b1 | Jes Sorensen | if (mask & (1 << i)) |
177 | 69bd73b1 | Jes Sorensen | break;
|
178 | 69bd73b1 | Jes Sorensen | } |
179 | 69bd73b1 | Jes Sorensen | if (i != 32) { |
180 | 69bd73b1 | Jes Sorensen | mask = 1 << i;
|
181 | 69bd73b1 | Jes Sorensen | SetProcessAffinityMask(h, mask); |
182 | 69bd73b1 | Jes Sorensen | } |
183 | 69bd73b1 | Jes Sorensen | } |
184 | 69bd73b1 | Jes Sorensen | } |
185 | 6170540b | Jes Sorensen | |
186 | 6170540b | Jes Sorensen | /* Look for support files in the same directory as the executable. */
|
187 | 6170540b | Jes Sorensen | char *os_find_datadir(const char *argv0) |
188 | 6170540b | Jes Sorensen | { |
189 | 6170540b | Jes Sorensen | char *p;
|
190 | 6170540b | Jes Sorensen | char buf[MAX_PATH];
|
191 | 6170540b | Jes Sorensen | DWORD len; |
192 | 6170540b | Jes Sorensen | |
193 | 6170540b | Jes Sorensen | len = GetModuleFileName(NULL, buf, sizeof(buf) - 1); |
194 | 6170540b | Jes Sorensen | if (len == 0) { |
195 | 6170540b | Jes Sorensen | return NULL; |
196 | 6170540b | Jes Sorensen | } |
197 | 6170540b | Jes Sorensen | |
198 | 6170540b | Jes Sorensen | buf[len] = 0;
|
199 | 6170540b | Jes Sorensen | p = buf + len - 1;
|
200 | 6170540b | Jes Sorensen | while (p != buf && *p != '\\') |
201 | 6170540b | Jes Sorensen | p--; |
202 | 6170540b | Jes Sorensen | *p = 0;
|
203 | 6170540b | Jes Sorensen | if (access(buf, R_OK) == 0) { |
204 | 6170540b | Jes Sorensen | return qemu_strdup(buf);
|
205 | 6170540b | Jes Sorensen | } |
206 | 6170540b | Jes Sorensen | return NULL; |
207 | 6170540b | Jes Sorensen | } |
208 | 59a5264b | Jes Sorensen | |
209 | 59a5264b | Jes Sorensen | /*
|
210 | 59a5264b | Jes Sorensen | * Parse OS specific command line options.
|
211 | 59a5264b | Jes Sorensen | * return 0 if option handled, -1 otherwise
|
212 | 59a5264b | Jes Sorensen | */
|
213 | 59a5264b | Jes Sorensen | void os_parse_cmd_args(int index, const char *optarg) |
214 | 59a5264b | Jes Sorensen | { |
215 | 59a5264b | Jes Sorensen | return;
|
216 | 59a5264b | Jes Sorensen | } |
217 | eb505be1 | Jes Sorensen | |
218 | eb505be1 | Jes Sorensen | void os_pidfile_error(void) |
219 | eb505be1 | Jes Sorensen | { |
220 | eb505be1 | Jes Sorensen | fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
|
221 | eb505be1 | Jes Sorensen | } |