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Diffstat (limited to 'util/oslib-win32.c')
-rw-r--r-- | util/oslib-win32.c | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/util/oslib-win32.c b/util/oslib-win32.c new file mode 100644 index 0000000000..e7e283e875 --- /dev/null +++ b/util/oslib-win32.c @@ -0,0 +1,152 @@ +/* + * 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 "config-host.h" +#include "sysemu/sysemu.h" +#include "qemu/main-loop.h" +#include "trace.h" +#include "qemu/sockets.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_vmalloc(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. */ + if (!size) { + abort(); + } + ptr = qemu_oom_check(VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE)); + trace_qemu_vmalloc(size, ptr); + return ptr; +} + +void qemu_vfree(void *ptr) +{ + trace_qemu_vfree(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 socket_set_block(int fd) +{ + unsigned long opt = 0; + WSAEventSelect(fd, NULL, 0); + ioctlsocket(fd, FIONBIO, &opt); +} + +void socket_set_nonblock(int fd) +{ + unsigned long opt = 1; + ioctlsocket(fd, FIONBIO, &opt); + qemu_fd_register(fd); +} + +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(); +} |