]>
git.proxmox.com Git - mirror_qemu.git/blob - util/oslib-win32.c
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 * Copyright (c) 2010-2016 Red Hat, Inc.
7 * QEMU library functions for win32 which are shared between QEMU and
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:
17 * The above copyright notice and this permission notice shall be included in
18 * all copies or substantial portions of the Software.
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
29 #include "qemu/osdep.h"
31 #include "qapi/error.h"
32 #include "qemu/main-loop.h"
34 #include "qemu/sockets.h"
35 #include "qemu/cutils.h"
36 #include "qemu/error-report.h"
39 static int get_allocation_granularity(void)
41 SYSTEM_INFO system_info
;
43 GetSystemInfo(&system_info
);
44 return system_info
.dwAllocationGranularity
;
47 void *qemu_anon_ram_alloc(size_t size
, uint64_t *align
, bool shared
,
54 * We need a MEM_COMMIT before accessing any memory in a MEM_RESERVE
55 * area; we cannot easily mimic POSIX MAP_NORESERVE semantics.
57 error_report("Skipping reservation of swap space is not supported.");
61 ptr
= VirtualAlloc(NULL
, size
, MEM_COMMIT
, PAGE_READWRITE
);
62 trace_qemu_anon_ram_alloc(size
, ptr
);
65 *align
= MAX(get_allocation_granularity(), getpagesize());
70 void qemu_anon_ram_free(void *ptr
, size_t size
)
72 trace_qemu_anon_ram_free(ptr
, size
);
74 VirtualFree(ptr
, 0, MEM_RELEASE
);
78 #ifndef _POSIX_THREAD_SAFE_FUNCTIONS
79 /* FIXME: add proper locking */
80 struct tm
*gmtime_r(const time_t *timep
, struct tm
*result
)
82 struct tm
*p
= gmtime(timep
);
83 memset(result
, 0, sizeof(*result
));
91 /* FIXME: add proper locking */
92 struct tm
*localtime_r(const time_t *timep
, struct tm
*result
)
94 struct tm
*p
= localtime(timep
);
95 memset(result
, 0, sizeof(*result
));
102 #endif /* _POSIX_THREAD_SAFE_FUNCTIONS */
104 static int socket_error(void)
106 switch (WSAGetLastError()) {
113 case WSA_INVALID_HANDLE
:
115 case WSA_NOT_ENOUGH_MEMORY
:
117 case WSA_INVALID_PARAMETER
:
119 case WSAENAMETOOLONG
:
124 /* not using EWOULDBLOCK as we don't want code to have
125 * to check both EWOULDBLOCK and EAGAIN */
133 case WSAEDESTADDRREQ
:
141 case WSAEPROTONOSUPPORT
:
142 return EPROTONOSUPPORT
;
145 case WSAEAFNOSUPPORT
:
149 case WSAEADDRNOTAVAIL
:
150 return EADDRNOTAVAIL
;
157 case WSAECONNABORTED
:
169 case WSAECONNREFUSED
:
173 case WSAEHOSTUNREACH
:
180 void qemu_socket_set_block(int fd
)
182 unsigned long opt
= 0;
183 qemu_socket_select(fd
, NULL
, 0, NULL
);
184 ioctlsocket(fd
, FIONBIO
, &opt
);
187 int qemu_socket_try_set_nonblock(int fd
)
189 unsigned long opt
= 1;
190 if (ioctlsocket(fd
, FIONBIO
, &opt
) != NO_ERROR
) {
191 return -socket_error();
196 void qemu_socket_set_nonblock(int fd
)
198 (void)qemu_socket_try_set_nonblock(fd
);
201 int socket_set_fast_reuse(int fd
)
203 /* Enabling the reuse of an endpoint that was used by a socket still in
204 * TIME_WAIT state is usually performed by setting SO_REUSEADDR. On Windows
205 * fast reuse is the default and SO_REUSEADDR does strange things. So we
206 * don't have to do anything here. More info can be found at:
207 * http://msdn.microsoft.com/en-us/library/windows/desktop/ms740621.aspx */
211 int inet_aton(const char *cp
, struct in_addr
*ia
)
213 uint32_t addr
= inet_addr(cp
);
214 if (addr
== 0xffffffff) {
221 void qemu_set_cloexec(int fd
)
225 int qemu_get_thread_id(void)
227 return GetCurrentThreadId();
231 qemu_get_local_state_dir(void)
233 const char * const *data_dirs
= g_get_system_data_dirs();
235 g_assert(data_dirs
&& data_dirs
[0]);
237 return g_strdup(data_dirs
[0]);
240 void qemu_set_tty_echo(int fd
, bool echo
)
242 HANDLE handle
= (HANDLE
)_get_osfhandle(fd
);
245 if (handle
== INVALID_HANDLE_VALUE
) {
249 GetConsoleMode(handle
, &dwMode
);
252 SetConsoleMode(handle
, dwMode
| ENABLE_ECHO_INPUT
| ENABLE_LINE_INPUT
);
254 SetConsoleMode(handle
,
255 dwMode
& ~(ENABLE_ECHO_INPUT
| ENABLE_LINE_INPUT
));
259 int getpagesize(void)
261 SYSTEM_INFO system_info
;
263 GetSystemInfo(&system_info
);
264 return system_info
.dwPageSize
;
267 void qemu_prealloc_mem(int fd
, char *area
, size_t sz
, int max_threads
,
268 ThreadContext
*tc
, Error
**errp
)
271 size_t pagesize
= qemu_real_host_page_size();
273 sz
= (sz
+ pagesize
- 1) & -pagesize
;
274 for (i
= 0; i
< sz
/ pagesize
; i
++) {
275 memset(area
+ pagesize
* i
, 0, 1);
279 char *qemu_get_pid_name(pid_t pid
)
281 /* XXX Implement me */
286 bool qemu_socket_select(SOCKET s
, WSAEVENT hEventObject
,
287 long lNetworkEvents
, Error
**errp
)
293 if (WSAEventSelect(s
, hEventObject
, lNetworkEvents
) != 0) {
294 error_setg_win32(errp
, WSAGetLastError(), "failed to WSAEventSelect()");
302 int qemu_connect_wrap(int sockfd
, const struct sockaddr
*addr
,
306 ret
= connect(sockfd
, addr
, addrlen
);
308 if (WSAGetLastError() == WSAEWOULDBLOCK
) {
311 errno
= socket_error();
319 int qemu_listen_wrap(int sockfd
, int backlog
)
322 ret
= listen(sockfd
, backlog
);
324 errno
= socket_error();
331 int qemu_bind_wrap(int sockfd
, const struct sockaddr
*addr
,
335 ret
= bind(sockfd
, addr
, addrlen
);
337 errno
= socket_error();
344 int qemu_socket_wrap(int domain
, int type
, int protocol
)
347 ret
= socket(domain
, type
, protocol
);
349 errno
= socket_error();
356 int qemu_accept_wrap(int sockfd
, struct sockaddr
*addr
,
360 ret
= accept(sockfd
, addr
, addrlen
);
362 errno
= socket_error();
369 int qemu_shutdown_wrap(int sockfd
, int how
)
372 ret
= shutdown(sockfd
, how
);
374 errno
= socket_error();
381 int qemu_ioctlsocket_wrap(int fd
, int req
, void *val
)
384 ret
= ioctlsocket(fd
, req
, val
);
386 errno
= socket_error();
393 int qemu_closesocket_wrap(int fd
)
396 ret
= closesocket(fd
);
398 errno
= socket_error();
405 int qemu_getsockopt_wrap(int sockfd
, int level
, int optname
,
406 void *optval
, socklen_t
*optlen
)
409 ret
= getsockopt(sockfd
, level
, optname
, optval
, optlen
);
411 errno
= socket_error();
418 int qemu_setsockopt_wrap(int sockfd
, int level
, int optname
,
419 const void *optval
, socklen_t optlen
)
422 ret
= setsockopt(sockfd
, level
, optname
, optval
, optlen
);
424 errno
= socket_error();
431 int qemu_getpeername_wrap(int sockfd
, struct sockaddr
*addr
,
435 ret
= getpeername(sockfd
, addr
, addrlen
);
437 errno
= socket_error();
444 int qemu_getsockname_wrap(int sockfd
, struct sockaddr
*addr
,
448 ret
= getsockname(sockfd
, addr
, addrlen
);
450 errno
= socket_error();
457 ssize_t
qemu_send_wrap(int sockfd
, const void *buf
, size_t len
, int flags
)
460 ret
= send(sockfd
, buf
, len
, flags
);
462 errno
= socket_error();
469 ssize_t
qemu_sendto_wrap(int sockfd
, const void *buf
, size_t len
, int flags
,
470 const struct sockaddr
*addr
, socklen_t addrlen
)
473 ret
= sendto(sockfd
, buf
, len
, flags
, addr
, addrlen
);
475 errno
= socket_error();
482 ssize_t
qemu_recv_wrap(int sockfd
, void *buf
, size_t len
, int flags
)
485 ret
= recv(sockfd
, buf
, len
, flags
);
487 errno
= socket_error();
494 ssize_t
qemu_recvfrom_wrap(int sockfd
, void *buf
, size_t len
, int flags
,
495 struct sockaddr
*addr
, socklen_t
*addrlen
)
498 ret
= recvfrom(sockfd
, buf
, len
, flags
, addr
, addrlen
);
500 errno
= socket_error();
505 bool qemu_write_pidfile(const char *filename
, Error
**errp
)
512 memset(&overlap
, 0, sizeof(overlap
));
514 file
= CreateFile(filename
, GENERIC_WRITE
, FILE_SHARE_READ
, NULL
,
515 OPEN_ALWAYS
, FILE_ATTRIBUTE_NORMAL
, NULL
);
517 if (file
== INVALID_HANDLE_VALUE
) {
518 error_setg(errp
, "Failed to create PID file");
521 len
= snprintf(buffer
, sizeof(buffer
), FMT_pid
"\n", (pid_t
)getpid());
522 ret
= WriteFile(file
, (LPCVOID
)buffer
, (DWORD
)len
,
526 error_setg(errp
, "Failed to write PID file");
532 size_t qemu_get_host_physmem(void)
534 MEMORYSTATUSEX statex
;
535 statex
.dwLength
= sizeof(statex
);
537 if (GlobalMemoryStatusEx(&statex
)) {
538 return statex
.ullTotalPhys
;
543 int qemu_msync(void *addr
, size_t length
, int fd
)
546 * Perform the sync based on the file descriptor
547 * The sync range will most probably be wider than the one
548 * requested - but it will still get the job done
550 return qemu_fdatasync(fd
);