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Commit | Line | Data |
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c1b0b93b JS |
1 | /* |
2 | * os-win32.c | |
3 | * | |
4 | * Copyright (c) 2003-2008 Fabrice Bellard | |
c6196440 | 5 | * Copyright (c) 2010-2016 Red Hat, Inc. |
c1b0b93b JS |
6 | * |
7 | * QEMU library functions for win32 which are shared between QEMU and | |
8 | * the QEMU tools. | |
9 | * | |
10 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
11 | * of this software and associated documentation files (the "Software"), to deal | |
12 | * in the Software without restriction, including without limitation the rights | |
13 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
14 | * copies of the Software, and to permit persons to whom the Software is | |
15 | * furnished to do so, subject to the following conditions: | |
16 | * | |
17 | * The above copyright notice and this permission notice shall be included in | |
18 | * all copies or substantial portions of the Software. | |
19 | * | |
20 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
21 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
22 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
23 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
24 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
25 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
26 | * THE SOFTWARE. | |
e637aa66 SW |
27 | * |
28 | * The implementation of g_poll (functions poll_rest, g_poll) at the end of | |
29 | * this file are based on code from GNOME glib-2 and use a different license, | |
30 | * see the license comment there. | |
c1b0b93b | 31 | */ |
a8d25326 | 32 | |
aafd7584 | 33 | #include "qemu/osdep.h" |
c1b0b93b | 34 | #include <windows.h> |
a8d25326 | 35 | #include "qemu-common.h" |
da34e65c | 36 | #include "qapi/error.h" |
1de7afc9 | 37 | #include "qemu/main-loop.h" |
c1b0b93b | 38 | #include "trace.h" |
1de7afc9 | 39 | #include "qemu/sockets.h" |
f348b6d1 | 40 | #include "qemu/cutils.h" |
8dbe22c6 | 41 | #include "qemu/error-report.h" |
dfbd0b87 | 42 | #include <malloc.h> |
c1b0b93b | 43 | |
e2ea3515 LE |
44 | /* this must come after including "trace.h" */ |
45 | #include <shlobj.h> | |
46 | ||
b152aa84 | 47 | void *qemu_oom_check(void *ptr) |
c1b0b93b JS |
48 | { |
49 | if (ptr == NULL) { | |
50 | fprintf(stderr, "Failed to allocate memory: %lu\n", GetLastError()); | |
51 | abort(); | |
52 | } | |
53 | return ptr; | |
54 | } | |
55 | ||
7d2a35cc | 56 | void *qemu_try_memalign(size_t alignment, size_t size) |
c1b0b93b JS |
57 | { |
58 | void *ptr; | |
59 | ||
dfbd0b87 | 60 | g_assert(size != 0); |
1c963866 SW |
61 | if (alignment < sizeof(void *)) { |
62 | alignment = sizeof(void *); | |
63 | } else { | |
64 | g_assert(is_power_of_2(alignment)); | |
65 | } | |
124bd3e0 | 66 | ptr = _aligned_malloc(size, alignment); |
c1b0b93b JS |
67 | trace_qemu_memalign(alignment, size, ptr); |
68 | return ptr; | |
69 | } | |
70 | ||
7d2a35cc KW |
71 | void *qemu_memalign(size_t alignment, size_t size) |
72 | { | |
73 | return qemu_oom_check(qemu_try_memalign(alignment, size)); | |
74 | } | |
75 | ||
714efd54 DH |
76 | static int get_allocation_granularity(void) |
77 | { | |
78 | SYSTEM_INFO system_info; | |
79 | ||
80 | GetSystemInfo(&system_info); | |
81 | return system_info.dwAllocationGranularity; | |
82 | } | |
83 | ||
8dbe22c6 DH |
84 | void *qemu_anon_ram_alloc(size_t size, uint64_t *align, bool shared, |
85 | bool noreserve) | |
c1b0b93b JS |
86 | { |
87 | void *ptr; | |
88 | ||
8dbe22c6 DH |
89 | if (noreserve) { |
90 | /* | |
91 | * We need a MEM_COMMIT before accessing any memory in a MEM_RESERVE | |
92 | * area; we cannot easily mimic POSIX MAP_NORESERVE semantics. | |
93 | */ | |
94 | error_report("Skipping reservation of swap space is not supported."); | |
95 | return NULL; | |
96 | } | |
97 | ||
39228250 | 98 | ptr = VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE); |
6eebf958 | 99 | trace_qemu_anon_ram_alloc(size, ptr); |
714efd54 DH |
100 | |
101 | if (ptr && align) { | |
102 | *align = MAX(get_allocation_granularity(), getpagesize()); | |
103 | } | |
c1b0b93b JS |
104 | return ptr; |
105 | } | |
106 | ||
107 | void qemu_vfree(void *ptr) | |
108 | { | |
109 | trace_qemu_vfree(ptr); | |
dfbd0b87 | 110 | _aligned_free(ptr); |
c1b0b93b | 111 | } |
9549e764 | 112 | |
e7a09b92 PB |
113 | void qemu_anon_ram_free(void *ptr, size_t size) |
114 | { | |
115 | trace_qemu_anon_ram_free(ptr, size); | |
116 | if (ptr) { | |
117 | VirtualFree(ptr, 0, MEM_RELEASE); | |
118 | } | |
119 | } | |
120 | ||
7c3afc85 | 121 | #ifndef _POSIX_THREAD_SAFE_FUNCTIONS |
d3e8f957 SW |
122 | /* FIXME: add proper locking */ |
123 | struct tm *gmtime_r(const time_t *timep, struct tm *result) | |
124 | { | |
125 | struct tm *p = gmtime(timep); | |
126 | memset(result, 0, sizeof(*result)); | |
127 | if (p) { | |
128 | *result = *p; | |
129 | p = result; | |
130 | } | |
131 | return p; | |
132 | } | |
133 | ||
134 | /* FIXME: add proper locking */ | |
135 | struct tm *localtime_r(const time_t *timep, struct tm *result) | |
136 | { | |
137 | struct tm *p = localtime(timep); | |
138 | memset(result, 0, sizeof(*result)); | |
139 | if (p) { | |
140 | *result = *p; | |
141 | p = result; | |
142 | } | |
143 | return p; | |
144 | } | |
7c3afc85 | 145 | #endif /* _POSIX_THREAD_SAFE_FUNCTIONS */ |
d3e8f957 | 146 | |
b16a44e1 | 147 | static int socket_error(void) |
c6196440 DB |
148 | { |
149 | switch (WSAGetLastError()) { | |
150 | case 0: | |
151 | return 0; | |
152 | case WSAEINTR: | |
153 | return EINTR; | |
154 | case WSAEINVAL: | |
155 | return EINVAL; | |
156 | case WSA_INVALID_HANDLE: | |
157 | return EBADF; | |
158 | case WSA_NOT_ENOUGH_MEMORY: | |
159 | return ENOMEM; | |
160 | case WSA_INVALID_PARAMETER: | |
161 | return EINVAL; | |
162 | case WSAENAMETOOLONG: | |
163 | return ENAMETOOLONG; | |
164 | case WSAENOTEMPTY: | |
165 | return ENOTEMPTY; | |
166 | case WSAEWOULDBLOCK: | |
167 | /* not using EWOULDBLOCK as we don't want code to have | |
168 | * to check both EWOULDBLOCK and EAGAIN */ | |
169 | return EAGAIN; | |
170 | case WSAEINPROGRESS: | |
171 | return EINPROGRESS; | |
172 | case WSAEALREADY: | |
173 | return EALREADY; | |
174 | case WSAENOTSOCK: | |
175 | return ENOTSOCK; | |
176 | case WSAEDESTADDRREQ: | |
177 | return EDESTADDRREQ; | |
178 | case WSAEMSGSIZE: | |
179 | return EMSGSIZE; | |
180 | case WSAEPROTOTYPE: | |
181 | return EPROTOTYPE; | |
182 | case WSAENOPROTOOPT: | |
183 | return ENOPROTOOPT; | |
184 | case WSAEPROTONOSUPPORT: | |
185 | return EPROTONOSUPPORT; | |
186 | case WSAEOPNOTSUPP: | |
187 | return EOPNOTSUPP; | |
188 | case WSAEAFNOSUPPORT: | |
189 | return EAFNOSUPPORT; | |
190 | case WSAEADDRINUSE: | |
191 | return EADDRINUSE; | |
192 | case WSAEADDRNOTAVAIL: | |
193 | return EADDRNOTAVAIL; | |
194 | case WSAENETDOWN: | |
195 | return ENETDOWN; | |
196 | case WSAENETUNREACH: | |
197 | return ENETUNREACH; | |
198 | case WSAENETRESET: | |
199 | return ENETRESET; | |
200 | case WSAECONNABORTED: | |
201 | return ECONNABORTED; | |
202 | case WSAECONNRESET: | |
203 | return ECONNRESET; | |
204 | case WSAENOBUFS: | |
205 | return ENOBUFS; | |
206 | case WSAEISCONN: | |
207 | return EISCONN; | |
208 | case WSAENOTCONN: | |
209 | return ENOTCONN; | |
210 | case WSAETIMEDOUT: | |
211 | return ETIMEDOUT; | |
212 | case WSAECONNREFUSED: | |
213 | return ECONNREFUSED; | |
214 | case WSAELOOP: | |
215 | return ELOOP; | |
216 | case WSAEHOSTUNREACH: | |
217 | return EHOSTUNREACH; | |
218 | default: | |
219 | return EIO; | |
220 | } | |
221 | } | |
222 | ||
894022e6 LV |
223 | void qemu_set_block(int fd) |
224 | { | |
225 | unsigned long opt = 0; | |
226 | WSAEventSelect(fd, NULL, 0); | |
227 | ioctlsocket(fd, FIONBIO, &opt); | |
228 | } | |
229 | ||
230 | int qemu_try_set_nonblock(int fd) | |
231 | { | |
232 | unsigned long opt = 1; | |
233 | if (ioctlsocket(fd, FIONBIO, &opt) != NO_ERROR) { | |
234 | return -socket_error(); | |
235 | } | |
894022e6 LV |
236 | return 0; |
237 | } | |
238 | ||
239 | void qemu_set_nonblock(int fd) | |
240 | { | |
241 | (void)qemu_try_set_nonblock(fd); | |
242 | } | |
243 | ||
244 | int socket_set_fast_reuse(int fd) | |
245 | { | |
246 | /* Enabling the reuse of an endpoint that was used by a socket still in | |
247 | * TIME_WAIT state is usually performed by setting SO_REUSEADDR. On Windows | |
248 | * fast reuse is the default and SO_REUSEADDR does strange things. So we | |
249 | * don't have to do anything here. More info can be found at: | |
250 | * http://msdn.microsoft.com/en-us/library/windows/desktop/ms740621.aspx */ | |
251 | return 0; | |
252 | } | |
253 | ||
9549e764 JS |
254 | int inet_aton(const char *cp, struct in_addr *ia) |
255 | { | |
256 | uint32_t addr = inet_addr(cp); | |
257 | if (addr == 0xffffffff) { | |
e637aa66 | 258 | return 0; |
9549e764 JS |
259 | } |
260 | ia->s_addr = addr; | |
261 | return 1; | |
262 | } | |
263 | ||
264 | void qemu_set_cloexec(int fd) | |
265 | { | |
266 | } | |
dc786bc9 | 267 | |
dc786bc9 JS |
268 | /* Offset between 1/1/1601 and 1/1/1970 in 100 nanosec units */ |
269 | #define _W32_FT_OFFSET (116444736000000000ULL) | |
270 | ||
271 | int qemu_gettimeofday(qemu_timeval *tp) | |
272 | { | |
273 | union { | |
274 | unsigned long long ns100; /*time since 1 Jan 1601 in 100ns units */ | |
275 | FILETIME ft; | |
276 | } _now; | |
277 | ||
278 | if(tp) { | |
279 | GetSystemTimeAsFileTime (&_now.ft); | |
280 | tp->tv_usec=(long)((_now.ns100 / 10ULL) % 1000000ULL ); | |
281 | tp->tv_sec= (long)((_now.ns100 - _W32_FT_OFFSET) / 10000000ULL); | |
282 | } | |
283 | /* Always return 0 as per Open Group Base Specifications Issue 6. | |
284 | Do not set errno on error. */ | |
285 | return 0; | |
286 | } | |
cbcfa041 PB |
287 | |
288 | int qemu_get_thread_id(void) | |
289 | { | |
290 | return GetCurrentThreadId(); | |
291 | } | |
e2ea3515 LE |
292 | |
293 | char * | |
294 | qemu_get_local_state_pathname(const char *relative_pathname) | |
295 | { | |
296 | HRESULT result; | |
297 | char base_path[MAX_PATH+1] = ""; | |
298 | ||
299 | result = SHGetFolderPath(NULL, CSIDL_COMMON_APPDATA, NULL, | |
300 | /* SHGFP_TYPE_CURRENT */ 0, base_path); | |
301 | if (result != S_OK) { | |
302 | /* misconfigured environment */ | |
303 | g_critical("CSIDL_COMMON_APPDATA unavailable: %ld", (long)result); | |
304 | abort(); | |
305 | } | |
306 | return g_strdup_printf("%s" G_DIR_SEPARATOR_S "%s", base_path, | |
307 | relative_pathname); | |
308 | } | |
13401ba0 SH |
309 | |
310 | void qemu_set_tty_echo(int fd, bool echo) | |
311 | { | |
312 | HANDLE handle = (HANDLE)_get_osfhandle(fd); | |
313 | DWORD dwMode = 0; | |
314 | ||
315 | if (handle == INVALID_HANDLE_VALUE) { | |
316 | return; | |
317 | } | |
318 | ||
319 | GetConsoleMode(handle, &dwMode); | |
320 | ||
321 | if (echo) { | |
322 | SetConsoleMode(handle, dwMode | ENABLE_ECHO_INPUT | ENABLE_LINE_INPUT); | |
323 | } else { | |
324 | SetConsoleMode(handle, | |
325 | dwMode & ~(ENABLE_ECHO_INPUT | ENABLE_LINE_INPUT)); | |
326 | } | |
327 | } | |
10f5bff6 | 328 | |
9386a4a7 | 329 | static const char *exec_dir; |
10f5bff6 FZ |
330 | |
331 | void qemu_init_exec_dir(const char *argv0) | |
332 | { | |
333 | ||
334 | char *p; | |
335 | char buf[MAX_PATH]; | |
336 | DWORD len; | |
337 | ||
a4c13869 PB |
338 | if (exec_dir) { |
339 | return; | |
340 | } | |
341 | ||
10f5bff6 FZ |
342 | len = GetModuleFileName(NULL, buf, sizeof(buf) - 1); |
343 | if (len == 0) { | |
344 | return; | |
345 | } | |
346 | ||
347 | buf[len] = 0; | |
348 | p = buf + len - 1; | |
349 | while (p != buf && *p != '\\') { | |
350 | p--; | |
351 | } | |
352 | *p = 0; | |
353 | if (access(buf, R_OK) == 0) { | |
a4c13869 | 354 | exec_dir = g_strdup(buf); |
9386a4a7 PB |
355 | } else { |
356 | exec_dir = CONFIG_BINDIR; | |
10f5bff6 FZ |
357 | } |
358 | } | |
359 | ||
a4c13869 | 360 | const char *qemu_get_exec_dir(void) |
10f5bff6 | 361 | { |
a4c13869 | 362 | return exec_dir; |
10f5bff6 | 363 | } |
5a007547 | 364 | |
a28c2f2d | 365 | int getpagesize(void) |
38183310 PB |
366 | { |
367 | SYSTEM_INFO system_info; | |
368 | ||
369 | GetSystemInfo(&system_info); | |
370 | return system_info.dwPageSize; | |
371 | } | |
372 | ||
1e356fc1 JK |
373 | void os_mem_prealloc(int fd, char *area, size_t memory, int smp_cpus, |
374 | Error **errp) | |
38183310 PB |
375 | { |
376 | int i; | |
038adc2f | 377 | size_t pagesize = qemu_real_host_page_size; |
38183310 PB |
378 | |
379 | memory = (memory + pagesize - 1) & -pagesize; | |
380 | for (i = 0; i < memory / pagesize; i++) { | |
381 | memset(area + pagesize * i, 0, 1); | |
382 | } | |
383 | } | |
d57e4e48 | 384 | |
7dc9ae43 MP |
385 | char *qemu_get_pid_name(pid_t pid) |
386 | { | |
387 | /* XXX Implement me */ | |
388 | abort(); | |
389 | } | |
390 | ||
391 | ||
57cb38b3 DB |
392 | pid_t qemu_fork(Error **errp) |
393 | { | |
394 | errno = ENOSYS; | |
395 | error_setg_errno(errp, errno, | |
396 | "cannot fork child process"); | |
397 | return -1; | |
398 | } | |
a2d96af4 DB |
399 | |
400 | ||
401 | #undef connect | |
402 | int qemu_connect_wrap(int sockfd, const struct sockaddr *addr, | |
403 | socklen_t addrlen) | |
404 | { | |
405 | int ret; | |
406 | ret = connect(sockfd, addr, addrlen); | |
407 | if (ret < 0) { | |
f1cd5d41 MAL |
408 | if (WSAGetLastError() == WSAEWOULDBLOCK) { |
409 | errno = EINPROGRESS; | |
410 | } else { | |
411 | errno = socket_error(); | |
412 | } | |
a2d96af4 DB |
413 | } |
414 | return ret; | |
415 | } | |
416 | ||
417 | ||
418 | #undef listen | |
419 | int qemu_listen_wrap(int sockfd, int backlog) | |
420 | { | |
421 | int ret; | |
422 | ret = listen(sockfd, backlog); | |
423 | if (ret < 0) { | |
424 | errno = socket_error(); | |
425 | } | |
426 | return ret; | |
427 | } | |
428 | ||
429 | ||
430 | #undef bind | |
431 | int qemu_bind_wrap(int sockfd, const struct sockaddr *addr, | |
432 | socklen_t addrlen) | |
433 | { | |
434 | int ret; | |
435 | ret = bind(sockfd, addr, addrlen); | |
436 | if (ret < 0) { | |
437 | errno = socket_error(); | |
438 | } | |
439 | return ret; | |
440 | } | |
441 | ||
442 | ||
443 | #undef socket | |
444 | int qemu_socket_wrap(int domain, int type, int protocol) | |
445 | { | |
446 | int ret; | |
447 | ret = socket(domain, type, protocol); | |
448 | if (ret < 0) { | |
449 | errno = socket_error(); | |
450 | } | |
451 | return ret; | |
452 | } | |
453 | ||
454 | ||
455 | #undef accept | |
456 | int qemu_accept_wrap(int sockfd, struct sockaddr *addr, | |
457 | socklen_t *addrlen) | |
458 | { | |
459 | int ret; | |
460 | ret = accept(sockfd, addr, addrlen); | |
461 | if (ret < 0) { | |
462 | errno = socket_error(); | |
463 | } | |
464 | return ret; | |
465 | } | |
466 | ||
467 | ||
468 | #undef shutdown | |
469 | int qemu_shutdown_wrap(int sockfd, int how) | |
470 | { | |
471 | int ret; | |
472 | ret = shutdown(sockfd, how); | |
473 | if (ret < 0) { | |
474 | errno = socket_error(); | |
475 | } | |
476 | return ret; | |
477 | } | |
478 | ||
479 | ||
480 | #undef ioctlsocket | |
481 | int qemu_ioctlsocket_wrap(int fd, int req, void *val) | |
482 | { | |
483 | int ret; | |
484 | ret = ioctlsocket(fd, req, val); | |
485 | if (ret < 0) { | |
486 | errno = socket_error(); | |
487 | } | |
488 | return ret; | |
489 | } | |
490 | ||
491 | ||
492 | #undef closesocket | |
493 | int qemu_closesocket_wrap(int fd) | |
494 | { | |
495 | int ret; | |
496 | ret = closesocket(fd); | |
497 | if (ret < 0) { | |
498 | errno = socket_error(); | |
499 | } | |
500 | return ret; | |
501 | } | |
502 | ||
503 | ||
504 | #undef getsockopt | |
505 | int qemu_getsockopt_wrap(int sockfd, int level, int optname, | |
506 | void *optval, socklen_t *optlen) | |
507 | { | |
508 | int ret; | |
509 | ret = getsockopt(sockfd, level, optname, optval, optlen); | |
510 | if (ret < 0) { | |
511 | errno = socket_error(); | |
512 | } | |
513 | return ret; | |
514 | } | |
515 | ||
516 | ||
517 | #undef setsockopt | |
518 | int qemu_setsockopt_wrap(int sockfd, int level, int optname, | |
519 | const void *optval, socklen_t optlen) | |
520 | { | |
521 | int ret; | |
522 | ret = setsockopt(sockfd, level, optname, optval, optlen); | |
523 | if (ret < 0) { | |
524 | errno = socket_error(); | |
525 | } | |
526 | return ret; | |
527 | } | |
528 | ||
529 | ||
530 | #undef getpeername | |
531 | int qemu_getpeername_wrap(int sockfd, struct sockaddr *addr, | |
532 | socklen_t *addrlen) | |
533 | { | |
534 | int ret; | |
535 | ret = getpeername(sockfd, addr, addrlen); | |
536 | if (ret < 0) { | |
537 | errno = socket_error(); | |
538 | } | |
539 | return ret; | |
540 | } | |
541 | ||
542 | ||
543 | #undef getsockname | |
544 | int qemu_getsockname_wrap(int sockfd, struct sockaddr *addr, | |
545 | socklen_t *addrlen) | |
546 | { | |
547 | int ret; | |
548 | ret = getsockname(sockfd, addr, addrlen); | |
549 | if (ret < 0) { | |
550 | errno = socket_error(); | |
551 | } | |
552 | return ret; | |
553 | } | |
554 | ||
555 | ||
556 | #undef send | |
557 | ssize_t qemu_send_wrap(int sockfd, const void *buf, size_t len, int flags) | |
558 | { | |
559 | int ret; | |
560 | ret = send(sockfd, buf, len, flags); | |
561 | if (ret < 0) { | |
562 | errno = socket_error(); | |
563 | } | |
564 | return ret; | |
565 | } | |
566 | ||
567 | ||
568 | #undef sendto | |
569 | ssize_t qemu_sendto_wrap(int sockfd, const void *buf, size_t len, int flags, | |
570 | const struct sockaddr *addr, socklen_t addrlen) | |
571 | { | |
572 | int ret; | |
573 | ret = sendto(sockfd, buf, len, flags, addr, addrlen); | |
574 | if (ret < 0) { | |
575 | errno = socket_error(); | |
576 | } | |
577 | return ret; | |
578 | } | |
579 | ||
580 | ||
581 | #undef recv | |
582 | ssize_t qemu_recv_wrap(int sockfd, void *buf, size_t len, int flags) | |
583 | { | |
584 | int ret; | |
585 | ret = recv(sockfd, buf, len, flags); | |
586 | if (ret < 0) { | |
587 | errno = socket_error(); | |
588 | } | |
589 | return ret; | |
590 | } | |
591 | ||
592 | ||
593 | #undef recvfrom | |
594 | ssize_t qemu_recvfrom_wrap(int sockfd, void *buf, size_t len, int flags, | |
595 | struct sockaddr *addr, socklen_t *addrlen) | |
596 | { | |
597 | int ret; | |
598 | ret = recvfrom(sockfd, buf, len, flags, addr, addrlen); | |
599 | if (ret < 0) { | |
600 | errno = socket_error(); | |
601 | } | |
602 | return ret; | |
603 | } | |
9e6bdef2 MAL |
604 | |
605 | bool qemu_write_pidfile(const char *filename, Error **errp) | |
606 | { | |
607 | char buffer[128]; | |
608 | int len; | |
609 | HANDLE file; | |
610 | OVERLAPPED overlap; | |
611 | BOOL ret; | |
612 | memset(&overlap, 0, sizeof(overlap)); | |
613 | ||
614 | file = CreateFile(filename, GENERIC_WRITE, FILE_SHARE_READ, NULL, | |
615 | OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); | |
616 | ||
617 | if (file == INVALID_HANDLE_VALUE) { | |
618 | error_setg(errp, "Failed to create PID file"); | |
619 | return false; | |
620 | } | |
621 | len = snprintf(buffer, sizeof(buffer), FMT_pid "\n", (pid_t)getpid()); | |
622 | ret = WriteFile(file, (LPCVOID)buffer, (DWORD)len, | |
623 | NULL, &overlap); | |
624 | CloseHandle(file); | |
625 | if (ret == 0) { | |
626 | error_setg(errp, "Failed to write PID file"); | |
627 | return false; | |
628 | } | |
629 | return true; | |
630 | } | |
e47f4765 MP |
631 | |
632 | char *qemu_get_host_name(Error **errp) | |
633 | { | |
634 | wchar_t tmp[MAX_COMPUTERNAME_LENGTH + 1]; | |
635 | DWORD size = G_N_ELEMENTS(tmp); | |
636 | ||
637 | if (GetComputerNameW(tmp, &size) == 0) { | |
638 | error_setg_win32(errp, GetLastError(), "failed close handle"); | |
639 | return NULL; | |
640 | } | |
641 | ||
642 | return g_utf16_to_utf8(tmp, size, NULL, NULL, NULL); | |
643 | } | |
ad06ef0e AB |
644 | |
645 | size_t qemu_get_host_physmem(void) | |
646 | { | |
986babaa AB |
647 | MEMORYSTATUSEX statex; |
648 | statex.dwLength = sizeof(statex); | |
649 | ||
650 | if (GlobalMemoryStatusEx(&statex)) { | |
651 | return statex.ullTotalPhys; | |
652 | } | |
ad06ef0e AB |
653 | return 0; |
654 | } |