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/*
* os-win32.c
*
* Copyright (c) 2003-2008 Fabrice Bellard
* Copyright (c) 2010 Red Hat, Inc.
*
* QEMU library functions for win32 which are shared between QEMU and
* the QEMU tools.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <windows.h>
#include <glib.h>
#include <stdlib.h>
#include "config-host.h"
#include "sysemu/sysemu.h"
#include "qemu/main-loop.h"
#include "trace.h"
#include "qemu/sockets.h"
/* this must come after including "trace.h" */
#include <shlobj.h>
void *qemu_oom_check(void *ptr)
{
if (ptr == NULL) {
fprintf(stderr, "Failed to allocate memory: %lu\n", GetLastError());
abort();
}
return ptr;
}
void *qemu_memalign(size_t alignment, size_t size)
{
void *ptr;
if (!size) {
abort();
}
ptr = qemu_oom_check(VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE));
trace_qemu_memalign(alignment, size, ptr);
return ptr;
}
void *qemu_anon_ram_alloc(size_t size)
{
void *ptr;
/* FIXME: this is not exactly optimal solution since VirtualAlloc
has 64Kb granularity, but at least it guarantees us that the
memory is page aligned. */
ptr = VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE);
trace_qemu_anon_ram_alloc(size, ptr);
return ptr;
}
void qemu_vfree(void *ptr)
{
trace_qemu_vfree(ptr);
if (ptr) {
VirtualFree(ptr, 0, MEM_RELEASE);
}
}
void qemu_anon_ram_free(void *ptr, size_t size)
{
trace_qemu_anon_ram_free(ptr, size);
if (ptr) {
VirtualFree(ptr, 0, MEM_RELEASE);
}
}
/* FIXME: add proper locking */
struct tm *gmtime_r(const time_t *timep, struct tm *result)
{
struct tm *p = gmtime(timep);
memset(result, 0, sizeof(*result));
if (p) {
*result = *p;
p = result;
}
return p;
}
/* FIXME: add proper locking */
struct tm *localtime_r(const time_t *timep, struct tm *result)
{
struct tm *p = localtime(timep);
memset(result, 0, sizeof(*result));
if (p) {
*result = *p;
p = result;
}
return p;
}
void qemu_set_block(int fd)
{
unsigned long opt = 0;
WSAEventSelect(fd, NULL, 0);
ioctlsocket(fd, FIONBIO, &opt);
}
void qemu_set_nonblock(int fd)
{
unsigned long opt = 1;
ioctlsocket(fd, FIONBIO, &opt);
qemu_fd_register(fd);
}
int socket_set_fast_reuse(int fd)
{
/* Enabling the reuse of an endpoint that was used by a socket still in
* TIME_WAIT state is usually performed by setting SO_REUSEADDR. On Windows
* fast reuse is the default and SO_REUSEADDR does strange things. So we
* don't have to do anything here. More info can be found at:
* http://msdn.microsoft.com/en-us/library/windows/desktop/ms740621.aspx */
return 0;
}
int inet_aton(const char *cp, struct in_addr *ia)
{
uint32_t addr = inet_addr(cp);
if (addr == 0xffffffff) {
return 0;
}
ia->s_addr = addr;
return 1;
}
void qemu_set_cloexec(int fd)
{
}
/* Offset between 1/1/1601 and 1/1/1970 in 100 nanosec units */
#define _W32_FT_OFFSET (116444736000000000ULL)
int qemu_gettimeofday(qemu_timeval *tp)
{
union {
unsigned long long ns100; /*time since 1 Jan 1601 in 100ns units */
FILETIME ft;
} _now;
if(tp) {
GetSystemTimeAsFileTime (&_now.ft);
tp->tv_usec=(long)((_now.ns100 / 10ULL) % 1000000ULL );
tp->tv_sec= (long)((_now.ns100 - _W32_FT_OFFSET) / 10000000ULL);
}
/* Always return 0 as per Open Group Base Specifications Issue 6.
Do not set errno on error. */
return 0;
}
int qemu_get_thread_id(void)
{
return GetCurrentThreadId();
}
char *
qemu_get_local_state_pathname(const char *relative_pathname)
{
HRESULT result;
char base_path[MAX_PATH+1] = "";
result = SHGetFolderPath(NULL, CSIDL_COMMON_APPDATA, NULL,
/* SHGFP_TYPE_CURRENT */ 0, base_path);
if (result != S_OK) {
/* misconfigured environment */
g_critical("CSIDL_COMMON_APPDATA unavailable: %ld", (long)result);
abort();
}
return g_strdup_printf("%s" G_DIR_SEPARATOR_S "%s", base_path,
relative_pathname);
}
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