PPC: Fix rldcl
[qemu/agraf.git] / util / oslib-win32.c
blobdcfa0c2918ab303abd594ba20befa6f0b5dcb345
1 /*
2 * os-win32.c
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 * Copyright (c) 2010 Red Hat, Inc.
7 * QEMU library functions for win32 which are shared between QEMU and
8 * the QEMU tools.
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
26 * THE SOFTWARE.
28 #include <windows.h>
29 #include "config-host.h"
30 #include "sysemu/sysemu.h"
31 #include "qemu/main-loop.h"
32 #include "trace.h"
33 #include "qemu/sockets.h"
35 void *qemu_oom_check(void *ptr)
37 if (ptr == NULL) {
38 fprintf(stderr, "Failed to allocate memory: %lu\n", GetLastError());
39 abort();
41 return ptr;
44 void *qemu_memalign(size_t alignment, size_t size)
46 void *ptr;
48 if (!size) {
49 abort();
51 ptr = qemu_oom_check(VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE));
52 trace_qemu_memalign(alignment, size, ptr);
53 return ptr;
56 void *qemu_vmalloc(size_t size)
58 void *ptr;
60 /* FIXME: this is not exactly optimal solution since VirtualAlloc
61 has 64Kb granularity, but at least it guarantees us that the
62 memory is page aligned. */
63 if (!size) {
64 abort();
66 ptr = qemu_oom_check(VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE));
67 trace_qemu_vmalloc(size, ptr);
68 return ptr;
71 void qemu_vfree(void *ptr)
73 trace_qemu_vfree(ptr);
74 if (ptr) {
75 VirtualFree(ptr, 0, MEM_RELEASE);
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));
84 if (p) {
85 *result = *p;
86 p = result;
88 return p;
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));
96 if (p) {
97 *result = *p;
98 p = result;
100 return p;
103 void qemu_set_block(int fd)
105 unsigned long opt = 0;
106 WSAEventSelect(fd, NULL, 0);
107 ioctlsocket(fd, FIONBIO, &opt);
110 void qemu_set_nonblock(int fd)
112 unsigned long opt = 1;
113 ioctlsocket(fd, FIONBIO, &opt);
114 qemu_fd_register(fd);
117 int inet_aton(const char *cp, struct in_addr *ia)
119 uint32_t addr = inet_addr(cp);
120 if (addr == 0xffffffff) {
121 return 0;
123 ia->s_addr = addr;
124 return 1;
127 void qemu_set_cloexec(int fd)
131 /* Offset between 1/1/1601 and 1/1/1970 in 100 nanosec units */
132 #define _W32_FT_OFFSET (116444736000000000ULL)
134 int qemu_gettimeofday(qemu_timeval *tp)
136 union {
137 unsigned long long ns100; /*time since 1 Jan 1601 in 100ns units */
138 FILETIME ft;
139 } _now;
141 if(tp) {
142 GetSystemTimeAsFileTime (&_now.ft);
143 tp->tv_usec=(long)((_now.ns100 / 10ULL) % 1000000ULL );
144 tp->tv_sec= (long)((_now.ns100 - _W32_FT_OFFSET) / 10000000ULL);
146 /* Always return 0 as per Open Group Base Specifications Issue 6.
147 Do not set errno on error. */
148 return 0;
151 int qemu_get_thread_id(void)
153 return GetCurrentThreadId();