root / util / oslib-win32.c @ 13401ba0
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/*
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* os-win32.c
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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* Copyright (c) 2010 Red Hat, Inc.
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*
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* QEMU library functions for win32 which are shared between QEMU and
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* the QEMU tools.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <windows.h> |
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#include <glib.h> |
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#include <stdlib.h> |
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#include "config-host.h" |
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#include "sysemu/sysemu.h" |
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#include "qemu/main-loop.h" |
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#include "trace.h" |
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#include "qemu/sockets.h" |
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/* this must come after including "trace.h" */
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#include <shlobj.h> |
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void *qemu_oom_check(void *ptr) |
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{ |
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if (ptr == NULL) { |
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fprintf(stderr, "Failed to allocate memory: %lu\n", GetLastError());
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abort(); |
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} |
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return ptr;
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} |
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void *qemu_memalign(size_t alignment, size_t size)
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{ |
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void *ptr;
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if (!size) {
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abort(); |
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} |
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ptr = qemu_oom_check(VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE));
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trace_qemu_memalign(alignment, size, ptr); |
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return ptr;
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} |
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void *qemu_anon_ram_alloc(size_t size)
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{ |
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void *ptr;
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/* FIXME: this is not exactly optimal solution since VirtualAlloc
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has 64Kb granularity, but at least it guarantees us that the
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memory is page aligned. */
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ptr = VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE);
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trace_qemu_anon_ram_alloc(size, ptr); |
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return ptr;
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} |
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void qemu_vfree(void *ptr) |
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{ |
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trace_qemu_vfree(ptr); |
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if (ptr) {
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VirtualFree(ptr, 0, MEM_RELEASE);
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} |
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} |
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void qemu_anon_ram_free(void *ptr, size_t size) |
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{ |
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trace_qemu_anon_ram_free(ptr, size); |
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if (ptr) {
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VirtualFree(ptr, 0, MEM_RELEASE);
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} |
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} |
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/* FIXME: add proper locking */
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struct tm *gmtime_r(const time_t *timep, struct tm *result) |
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{ |
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struct tm *p = gmtime(timep);
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memset(result, 0, sizeof(*result)); |
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if (p) {
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*result = *p; |
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p = result; |
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} |
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return p;
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} |
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/* FIXME: add proper locking */
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struct tm *localtime_r(const time_t *timep, struct tm *result) |
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{ |
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struct tm *p = localtime(timep);
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memset(result, 0, sizeof(*result)); |
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if (p) {
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*result = *p; |
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p = result; |
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} |
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return p;
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} |
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void qemu_set_block(int fd) |
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{ |
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unsigned long opt = 0; |
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WSAEventSelect(fd, NULL, 0); |
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ioctlsocket(fd, FIONBIO, &opt); |
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} |
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void qemu_set_nonblock(int fd) |
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{ |
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unsigned long opt = 1; |
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ioctlsocket(fd, FIONBIO, &opt); |
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qemu_fd_register(fd); |
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} |
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int socket_set_fast_reuse(int fd) |
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{ |
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/* Enabling the reuse of an endpoint that was used by a socket still in
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* TIME_WAIT state is usually performed by setting SO_REUSEADDR. On Windows
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* fast reuse is the default and SO_REUSEADDR does strange things. So we
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* don't have to do anything here. More info can be found at:
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* http://msdn.microsoft.com/en-us/library/windows/desktop/ms740621.aspx */
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return 0; |
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} |
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int inet_aton(const char *cp, struct in_addr *ia) |
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{ |
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uint32_t addr = inet_addr(cp); |
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if (addr == 0xffffffff) { |
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return 0; |
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} |
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ia->s_addr = addr; |
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return 1; |
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} |
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void qemu_set_cloexec(int fd) |
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{ |
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} |
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/* Offset between 1/1/1601 and 1/1/1970 in 100 nanosec units */
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#define _W32_FT_OFFSET (116444736000000000ULL) |
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int qemu_gettimeofday(qemu_timeval *tp)
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{ |
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union {
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unsigned long long ns100; /*time since 1 Jan 1601 in 100ns units */ |
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FILETIME ft; |
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} _now; |
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if(tp) {
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GetSystemTimeAsFileTime (&_now.ft); |
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tp->tv_usec=(long)((_now.ns100 / 10ULL) % 1000000ULL ); |
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tp->tv_sec= (long)((_now.ns100 - _W32_FT_OFFSET) / 10000000ULL); |
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} |
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/* Always return 0 as per Open Group Base Specifications Issue 6.
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Do not set errno on error. */
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return 0; |
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} |
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int qemu_get_thread_id(void) |
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{ |
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return GetCurrentThreadId();
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} |
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char *
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qemu_get_local_state_pathname(const char *relative_pathname) |
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{ |
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HRESULT result; |
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char base_path[MAX_PATH+1] = ""; |
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result = SHGetFolderPath(NULL, CSIDL_COMMON_APPDATA, NULL, |
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/* SHGFP_TYPE_CURRENT */ 0, base_path); |
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if (result != S_OK) {
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/* misconfigured environment */
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g_critical("CSIDL_COMMON_APPDATA unavailable: %ld", (long)result); |
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abort(); |
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} |
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return g_strdup_printf("%s" G_DIR_SEPARATOR_S "%s", base_path, |
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relative_pathname); |
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} |
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void qemu_set_tty_echo(int fd, bool echo) |
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{ |
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HANDLE handle = (HANDLE)_get_osfhandle(fd); |
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DWORD dwMode = 0;
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if (handle == INVALID_HANDLE_VALUE) {
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return;
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} |
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GetConsoleMode(handle, &dwMode); |
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if (echo) {
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SetConsoleMode(handle, dwMode | ENABLE_ECHO_INPUT | ENABLE_LINE_INPUT); |
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} else {
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SetConsoleMode(handle, |
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dwMode & ~(ENABLE_ECHO_INPUT | ENABLE_LINE_INPUT)); |
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} |
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} |