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
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
31 #include "config-host.h"
32 #include "sysemu/sysemu.h"
33 #include "qemu/main-loop.h"
35 #include "qemu/sockets.h"
37 /* this must come after including "trace.h" */
40 void *qemu_oom_check(void *ptr)
43 fprintf(stderr, "Failed to allocate memory: %lu\n", GetLastError());
49 void *qemu_memalign(size_t alignment, size_t size)
56 ptr = qemu_oom_check(VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE));
57 trace_qemu_memalign(alignment, size, ptr);
61 void *qemu_anon_ram_alloc(size_t size)
65 /* FIXME: this is not exactly optimal solution since VirtualAlloc
66 has 64Kb granularity, but at least it guarantees us that the
67 memory is page aligned. */
68 ptr = VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE);
69 trace_qemu_anon_ram_alloc(size, ptr);
73 void qemu_vfree(void *ptr)
75 trace_qemu_vfree(ptr);
77 VirtualFree(ptr, 0, MEM_RELEASE);
81 void qemu_anon_ram_free(void *ptr, size_t size)
83 trace_qemu_anon_ram_free(ptr, size);
85 VirtualFree(ptr, 0, MEM_RELEASE);
89 /* FIXME: add proper locking */
90 struct tm *gmtime_r(const time_t *timep, struct tm *result)
92 struct tm *p = gmtime(timep);
93 memset(result, 0, sizeof(*result));
101 /* FIXME: add proper locking */
102 struct tm *localtime_r(const time_t *timep, struct tm *result)
104 struct tm *p = localtime(timep);
105 memset(result, 0, sizeof(*result));
113 void qemu_set_block(int fd)
115 unsigned long opt = 0;
116 WSAEventSelect(fd, NULL, 0);
117 ioctlsocket(fd, FIONBIO, &opt);
120 void qemu_set_nonblock(int fd)
122 unsigned long opt = 1;
123 ioctlsocket(fd, FIONBIO, &opt);
124 qemu_fd_register(fd);
127 int inet_aton(const char *cp, struct in_addr *ia)
129 uint32_t addr = inet_addr(cp);
130 if (addr == 0xffffffff) {
137 void qemu_set_cloexec(int fd)
141 /* Offset between 1/1/1601 and 1/1/1970 in 100 nanosec units */
142 #define _W32_FT_OFFSET (116444736000000000ULL)
144 int qemu_gettimeofday(qemu_timeval *tp)
147 unsigned long long ns100; /*time since 1 Jan 1601 in 100ns units */
152 GetSystemTimeAsFileTime (&_now.ft);
153 tp->tv_usec=(long)((_now.ns100 / 10ULL) % 1000000ULL );
154 tp->tv_sec= (long)((_now.ns100 - _W32_FT_OFFSET) / 10000000ULL);
156 /* Always return 0 as per Open Group Base Specifications Issue 6.
157 Do not set errno on error. */
161 int qemu_get_thread_id(void)
163 return GetCurrentThreadId();
167 qemu_get_local_state_pathname(const char *relative_pathname)
170 char base_path[MAX_PATH+1] = "";
172 result = SHGetFolderPath(NULL, CSIDL_COMMON_APPDATA, NULL,
173 /* SHGFP_TYPE_CURRENT */ 0, base_path);
174 if (result != S_OK) {
175 /* misconfigured environment */
176 g_critical("CSIDL_COMMON_APPDATA unavailable: %ld", (long)result);
179 return g_strdup_printf("%s" G_DIR_SEPARATOR_S "%s", base_path,