PPC: rename msync to msync_4xx
[qemu.git] / oslib-win32.c
1 /*
2 * os-win32.c
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 * Copyright (c) 2010 Red Hat, Inc.
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.
27 */
28 #include <windows.h>
29 #include "config-host.h"
30 #include "sysemu.h"
31 #include "trace.h"
32 #include "qemu_socket.h"
33
34 void *qemu_oom_check(void *ptr)
35 {
36 if (ptr == NULL) {
37 fprintf(stderr, "Failed to allocate memory: %lu\n", GetLastError());
38 abort();
39 }
40 return ptr;
41 }
42
43 void *qemu_memalign(size_t alignment, size_t size)
44 {
45 void *ptr;
46
47 if (!size) {
48 abort();
49 }
50 ptr = qemu_oom_check(VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE));
51 trace_qemu_memalign(alignment, size, ptr);
52 return ptr;
53 }
54
55 void *qemu_vmalloc(size_t size)
56 {
57 void *ptr;
58
59 /* FIXME: this is not exactly optimal solution since VirtualAlloc
60 has 64Kb granularity, but at least it guarantees us that the
61 memory is page aligned. */
62 if (!size) {
63 abort();
64 }
65 ptr = qemu_oom_check(VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE));
66 trace_qemu_vmalloc(size, ptr);
67 return ptr;
68 }
69
70 void qemu_vfree(void *ptr)
71 {
72 trace_qemu_vfree(ptr);
73 VirtualFree(ptr, 0, MEM_RELEASE);
74 }
75
76 void socket_set_block(int fd)
77 {
78 unsigned long opt = 0;
79 ioctlsocket(fd, FIONBIO, &opt);
80 }
81
82 void socket_set_nonblock(int fd)
83 {
84 unsigned long opt = 1;
85 ioctlsocket(fd, FIONBIO, &opt);
86 }
87
88 int inet_aton(const char *cp, struct in_addr *ia)
89 {
90 uint32_t addr = inet_addr(cp);
91 if (addr == 0xffffffff) {
92 return 0;
93 }
94 ia->s_addr = addr;
95 return 1;
96 }
97
98 void qemu_set_cloexec(int fd)
99 {
100 }
101
102 /* Offset between 1/1/1601 and 1/1/1970 in 100 nanosec units */
103 #define _W32_FT_OFFSET (116444736000000000ULL)
104
105 int qemu_gettimeofday(qemu_timeval *tp)
106 {
107 union {
108 unsigned long long ns100; /*time since 1 Jan 1601 in 100ns units */
109 FILETIME ft;
110 } _now;
111
112 if(tp) {
113 GetSystemTimeAsFileTime (&_now.ft);
114 tp->tv_usec=(long)((_now.ns100 / 10ULL) % 1000000ULL );
115 tp->tv_sec= (long)((_now.ns100 - _W32_FT_OFFSET) / 10000000ULL);
116 }
117 /* Always return 0 as per Open Group Base Specifications Issue 6.
118 Do not set errno on error. */
119 return 0;
120 }
121
122 int qemu_get_thread_id(void)
123 {
124 return GetCurrentThreadId();
125 }