Annotation of qemu/oslib-win32.c, revision 1.1.1.4

1.1       root        1: /*
                      2:  * os-win32.c
                      3:  *
                      4:  * Copyright (c) 2003-2008 Fabrice Bellard
                      5:  * Copyright (c) 2010 Red Hat, Inc.
                      6:  *
                      7:  * QEMU library functions for win32 which are shared between QEMU and
                      8:  * the QEMU tools.
                      9:  *
                     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:
                     16:  *
                     17:  * The above copyright notice and this permission notice shall be included in
                     18:  * all copies or substantial portions of the Software.
                     19:  *
                     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.
                     27:  */
                     28: #include <windows.h>
                     29: #include "config-host.h"
                     30: #include "sysemu.h"
1.1.1.4 ! root       31: #include "main-loop.h"
1.1       root       32: #include "trace.h"
                     33: #include "qemu_socket.h"
                     34: 
                     35: void *qemu_oom_check(void *ptr)
                     36: {
                     37:     if (ptr == NULL) {
                     38:         fprintf(stderr, "Failed to allocate memory: %lu\n", GetLastError());
                     39:         abort();
                     40:     }
                     41:     return ptr;
                     42: }
                     43: 
                     44: void *qemu_memalign(size_t alignment, size_t size)
                     45: {
                     46:     void *ptr;
                     47: 
                     48:     if (!size) {
                     49:         abort();
                     50:     }
                     51:     ptr = qemu_oom_check(VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE));
                     52:     trace_qemu_memalign(alignment, size, ptr);
                     53:     return ptr;
                     54: }
                     55: 
                     56: void *qemu_vmalloc(size_t size)
                     57: {
                     58:     void *ptr;
                     59: 
                     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();
                     65:     }
                     66:     ptr = qemu_oom_check(VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE));
                     67:     trace_qemu_vmalloc(size, ptr);
                     68:     return ptr;
                     69: }
                     70: 
                     71: void qemu_vfree(void *ptr)
                     72: {
                     73:     trace_qemu_vfree(ptr);
                     74:     VirtualFree(ptr, 0, MEM_RELEASE);
                     75: }
                     76: 
1.1.1.3   root       77: void socket_set_block(int fd)
                     78: {
                     79:     unsigned long opt = 0;
1.1.1.4 ! root       80:     WSAEventSelect(fd, NULL, 0);
1.1.1.3   root       81:     ioctlsocket(fd, FIONBIO, &opt);
                     82: }
                     83: 
1.1       root       84: void socket_set_nonblock(int fd)
                     85: {
                     86:     unsigned long opt = 1;
                     87:     ioctlsocket(fd, FIONBIO, &opt);
1.1.1.4 ! root       88:     qemu_fd_register(fd);
1.1       root       89: }
                     90: 
                     91: int inet_aton(const char *cp, struct in_addr *ia)
                     92: {
                     93:     uint32_t addr = inet_addr(cp);
                     94:     if (addr == 0xffffffff) {
                     95:        return 0;
                     96:     }
                     97:     ia->s_addr = addr;
                     98:     return 1;
                     99: }
                    100: 
                    101: void qemu_set_cloexec(int fd)
                    102: {
                    103: }
                    104: 
                    105: /* Offset between 1/1/1601 and 1/1/1970 in 100 nanosec units */
                    106: #define _W32_FT_OFFSET (116444736000000000ULL)
                    107: 
                    108: int qemu_gettimeofday(qemu_timeval *tp)
                    109: {
                    110:   union {
                    111:     unsigned long long ns100; /*time since 1 Jan 1601 in 100ns units */
                    112:     FILETIME ft;
                    113:   }  _now;
                    114: 
                    115:   if(tp) {
                    116:       GetSystemTimeAsFileTime (&_now.ft);
                    117:       tp->tv_usec=(long)((_now.ns100 / 10ULL) % 1000000ULL );
                    118:       tp->tv_sec= (long)((_now.ns100 - _W32_FT_OFFSET) / 10000000ULL);
                    119:   }
                    120:   /* Always return 0 as per Open Group Base Specifications Issue 6.
                    121:      Do not set errno on error.  */
                    122:   return 0;
                    123: }
1.1.1.4 ! root      124: 
        !           125: int qemu_get_thread_id(void)
        !           126: {
        !           127:     return GetCurrentThreadId();
        !           128: }

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