diff options
Diffstat (limited to 'qemu/util/oslib-win32.c')
| -rw-r--r-- | qemu/util/oslib-win32.c | 786 |
1 files changed, 0 insertions, 786 deletions
diff --git a/qemu/util/oslib-win32.c b/qemu/util/oslib-win32.c deleted file mode 100644 index c926db4a5..000000000 --- a/qemu/util/oslib-win32.c +++ /dev/null @@ -1,786 +0,0 @@ -/* - * os-win32.c - * - * Copyright (c) 2003-2008 Fabrice Bellard - * Copyright (c) 2010-2016 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. - * - * The implementation of g_poll (functions poll_rest, g_poll) at the end of - * this file are based on code from GNOME glib-2 and use a different license, - * see the license comment there. - */ -#include "qemu/osdep.h" -#include <windows.h> -#include <glib.h> -#include "qapi/error.h" -#include "sysemu/sysemu.h" -#include "qemu/main-loop.h" -#include "trace.h" -#include "qemu/sockets.h" -#include "qemu/cutils.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_try_memalign(size_t alignment, size_t size) -{ - void *ptr; - - if (!size) { - abort(); - } - ptr = VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE); - trace_qemu_memalign(alignment, size, ptr); - return ptr; -} - -void *qemu_memalign(size_t alignment, size_t size) -{ - return qemu_oom_check(qemu_try_memalign(alignment, size)); -} - -void *qemu_anon_ram_alloc(size_t size, uint64_t *align) -{ - 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); - } -} - -#ifndef CONFIG_LOCALTIME_R -/* 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; -} -#endif /* CONFIG_LOCALTIME_R */ - -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; -} - - -static int socket_error(void) -{ - switch (WSAGetLastError()) { - case 0: - return 0; - case WSAEINTR: - return EINTR; - case WSAEINVAL: - return EINVAL; - case WSA_INVALID_HANDLE: - return EBADF; - case WSA_NOT_ENOUGH_MEMORY: - return ENOMEM; - case WSA_INVALID_PARAMETER: - return EINVAL; - case WSAENAMETOOLONG: - return ENAMETOOLONG; - case WSAENOTEMPTY: - return ENOTEMPTY; - case WSAEWOULDBLOCK: - /* not using EWOULDBLOCK as we don't want code to have - * to check both EWOULDBLOCK and EAGAIN */ - return EAGAIN; - case WSAEINPROGRESS: - return EINPROGRESS; - case WSAEALREADY: - return EALREADY; - case WSAENOTSOCK: - return ENOTSOCK; - case WSAEDESTADDRREQ: - return EDESTADDRREQ; - case WSAEMSGSIZE: - return EMSGSIZE; - case WSAEPROTOTYPE: - return EPROTOTYPE; - case WSAENOPROTOOPT: - return ENOPROTOOPT; - case WSAEPROTONOSUPPORT: - return EPROTONOSUPPORT; - case WSAEOPNOTSUPP: - return EOPNOTSUPP; - case WSAEAFNOSUPPORT: - return EAFNOSUPPORT; - case WSAEADDRINUSE: - return EADDRINUSE; - case WSAEADDRNOTAVAIL: - return EADDRNOTAVAIL; - case WSAENETDOWN: - return ENETDOWN; - case WSAENETUNREACH: - return ENETUNREACH; - case WSAENETRESET: - return ENETRESET; - case WSAECONNABORTED: - return ECONNABORTED; - case WSAECONNRESET: - return ECONNRESET; - case WSAENOBUFS: - return ENOBUFS; - case WSAEISCONN: - return EISCONN; - case WSAENOTCONN: - return ENOTCONN; - case WSAETIMEDOUT: - return ETIMEDOUT; - case WSAECONNREFUSED: - return ECONNREFUSED; - case WSAELOOP: - return ELOOP; - case WSAEHOSTUNREACH: - return EHOSTUNREACH; - default: - return EIO; - } -} - -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); -} - -void qemu_set_tty_echo(int fd, bool echo) -{ - HANDLE handle = (HANDLE)_get_osfhandle(fd); - DWORD dwMode = 0; - - if (handle == INVALID_HANDLE_VALUE) { - return; - } - - GetConsoleMode(handle, &dwMode); - - if (echo) { - SetConsoleMode(handle, dwMode | ENABLE_ECHO_INPUT | ENABLE_LINE_INPUT); - } else { - SetConsoleMode(handle, - dwMode & ~(ENABLE_ECHO_INPUT | ENABLE_LINE_INPUT)); - } -} - -static char exec_dir[PATH_MAX]; - -void qemu_init_exec_dir(const char *argv0) -{ - - char *p; - char buf[MAX_PATH]; - DWORD len; - - len = GetModuleFileName(NULL, buf, sizeof(buf) - 1); - if (len == 0) { - return; - } - - buf[len] = 0; - p = buf + len - 1; - while (p != buf && *p != '\\') { - p--; - } - *p = 0; - if (access(buf, R_OK) == 0) { - pstrcpy(exec_dir, sizeof(exec_dir), buf); - } -} - -char *qemu_get_exec_dir(void) -{ - return g_strdup(exec_dir); -} - -/* - * The original implementation of g_poll from glib has a problem on Windows - * when using timeouts < 10 ms. - * - * Whenever g_poll is called with timeout < 10 ms, it does a quick poll instead - * of wait. This causes significant performance degradation of QEMU. - * - * The following code is a copy of the original code from glib/gpoll.c - * (glib commit 20f4d1820b8d4d0fc4447188e33efffd6d4a88d8 from 2014-02-19). - * Some debug code was removed and the code was reformatted. - * All other code modifications are marked with 'QEMU'. - */ - -/* - * gpoll.c: poll(2) abstraction - * Copyright 1998 Owen Taylor - * Copyright 2008 Red Hat, Inc. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, see <http://www.gnu.org/licenses/>. - */ - -static int poll_rest(gboolean poll_msgs, HANDLE *handles, gint nhandles, - GPollFD *fds, guint nfds, gint timeout) -{ - DWORD ready; - GPollFD *f; - int recursed_result; - - if (poll_msgs) { - /* Wait for either messages or handles - * -> Use MsgWaitForMultipleObjectsEx - */ - ready = MsgWaitForMultipleObjectsEx(nhandles, handles, timeout, - QS_ALLINPUT, MWMO_ALERTABLE); - - if (ready == WAIT_FAILED) { - gchar *emsg = g_win32_error_message(GetLastError()); - g_warning("MsgWaitForMultipleObjectsEx failed: %s", emsg); - g_free(emsg); - } - } else if (nhandles == 0) { - /* No handles to wait for, just the timeout */ - if (timeout == INFINITE) { - ready = WAIT_FAILED; - } else { - SleepEx(timeout, TRUE); - ready = WAIT_TIMEOUT; - } - } else { - /* Wait for just handles - * -> Use WaitForMultipleObjectsEx - */ - ready = - WaitForMultipleObjectsEx(nhandles, handles, FALSE, timeout, TRUE); - if (ready == WAIT_FAILED) { - gchar *emsg = g_win32_error_message(GetLastError()); - g_warning("WaitForMultipleObjectsEx failed: %s", emsg); - g_free(emsg); - } - } - - if (ready == WAIT_FAILED) { - return -1; - } else if (ready == WAIT_TIMEOUT || ready == WAIT_IO_COMPLETION) { - return 0; - } else if (poll_msgs && ready == WAIT_OBJECT_0 + nhandles) { - for (f = fds; f < &fds[nfds]; ++f) { - if (f->fd == G_WIN32_MSG_HANDLE && f->events & G_IO_IN) { - f->revents |= G_IO_IN; - } - } - - /* If we have a timeout, or no handles to poll, be satisfied - * with just noticing we have messages waiting. - */ - if (timeout != 0 || nhandles == 0) { - return 1; - } - - /* If no timeout and handles to poll, recurse to poll them, - * too. - */ - recursed_result = poll_rest(FALSE, handles, nhandles, fds, nfds, 0); - return (recursed_result == -1) ? -1 : 1 + recursed_result; - } else if (/* QEMU: removed the following unneeded statement which causes - * a compiler warning: ready >= WAIT_OBJECT_0 && */ - ready < WAIT_OBJECT_0 + nhandles) { - for (f = fds; f < &fds[nfds]; ++f) { - if ((HANDLE) f->fd == handles[ready - WAIT_OBJECT_0]) { - f->revents = f->events; - } - } - - /* If no timeout and polling several handles, recurse to poll - * the rest of them. - */ - if (timeout == 0 && nhandles > 1) { - /* Remove the handle that fired */ - int i; - if (ready < nhandles - 1) { - for (i = ready - WAIT_OBJECT_0 + 1; i < nhandles; i++) { - handles[i-1] = handles[i]; - } - } - nhandles--; - recursed_result = poll_rest(FALSE, handles, nhandles, fds, nfds, 0); - return (recursed_result == -1) ? -1 : 1 + recursed_result; - } - return 1; - } - - return 0; -} - -gint g_poll(GPollFD *fds, guint nfds, gint timeout) -{ - HANDLE handles[MAXIMUM_WAIT_OBJECTS]; - gboolean poll_msgs = FALSE; - GPollFD *f; - gint nhandles = 0; - int retval; - - for (f = fds; f < &fds[nfds]; ++f) { - if (f->fd == G_WIN32_MSG_HANDLE && (f->events & G_IO_IN)) { - poll_msgs = TRUE; - } else if (f->fd > 0) { - /* Don't add the same handle several times into the array, as - * docs say that is not allowed, even if it actually does seem - * to work. - */ - gint i; - - for (i = 0; i < nhandles; i++) { - if (handles[i] == (HANDLE) f->fd) { - break; - } - } - - if (i == nhandles) { - if (nhandles == MAXIMUM_WAIT_OBJECTS) { - g_warning("Too many handles to wait for!\n"); - break; - } else { - handles[nhandles++] = (HANDLE) f->fd; - } - } - } - } - - for (f = fds; f < &fds[nfds]; ++f) { - f->revents = 0; - } - - if (timeout == -1) { - timeout = INFINITE; - } - - /* Polling for several things? */ - if (nhandles > 1 || (nhandles > 0 && poll_msgs)) { - /* First check if one or several of them are immediately - * available - */ - retval = poll_rest(poll_msgs, handles, nhandles, fds, nfds, 0); - - /* If not, and we have a significant timeout, poll again with - * timeout then. Note that this will return indication for only - * one event, or only for messages. We ignore timeouts less than - * ten milliseconds as they are mostly pointless on Windows, the - * MsgWaitForMultipleObjectsEx() call will timeout right away - * anyway. - * - * Modification for QEMU: replaced timeout >= 10 by timeout > 0. - */ - if (retval == 0 && (timeout == INFINITE || timeout > 0)) { - retval = poll_rest(poll_msgs, handles, nhandles, - fds, nfds, timeout); - } - } else { - /* Just polling for one thing, so no need to check first if - * available immediately - */ - retval = poll_rest(poll_msgs, handles, nhandles, fds, nfds, timeout); - } - - if (retval == -1) { - for (f = fds; f < &fds[nfds]; ++f) { - f->revents = 0; - } - } - - return retval; -} - -int getpagesize(void) -{ - SYSTEM_INFO system_info; - - GetSystemInfo(&system_info); - return system_info.dwPageSize; -} - -void os_mem_prealloc(int fd, char *area, size_t memory) -{ - int i; - size_t pagesize = getpagesize(); - - memory = (memory + pagesize - 1) & -pagesize; - for (i = 0; i < memory / pagesize; i++) { - memset(area + pagesize * i, 0, 1); - } -} - - -/* XXX: put correct support for win32 */ -int qemu_read_password(char *buf, int buf_size) -{ - int c, i; - - printf("Password: "); - fflush(stdout); - i = 0; - for (;;) { - c = getchar(); - if (c < 0) { - buf[i] = '\0'; - return -1; - } else if (c == '\n') { - break; - } else if (i < (buf_size - 1)) { - buf[i++] = c; - } - } - buf[i] = '\0'; - return 0; -} - - -pid_t qemu_fork(Error **errp) -{ - errno = ENOSYS; - error_setg_errno(errp, errno, - "cannot fork child process"); - return -1; -} - - -#undef connect -int qemu_connect_wrap(int sockfd, const struct sockaddr *addr, - socklen_t addrlen) -{ - int ret; - ret = connect(sockfd, addr, addrlen); - if (ret < 0) { - errno = socket_error(); - } - return ret; -} - - -#undef listen -int qemu_listen_wrap(int sockfd, int backlog) -{ - int ret; - ret = listen(sockfd, backlog); - if (ret < 0) { - errno = socket_error(); - } - return ret; -} - - -#undef bind -int qemu_bind_wrap(int sockfd, const struct sockaddr *addr, - socklen_t addrlen) -{ - int ret; - ret = bind(sockfd, addr, addrlen); - if (ret < 0) { - errno = socket_error(); - } - return ret; -} - - -#undef socket -int qemu_socket_wrap(int domain, int type, int protocol) -{ - int ret; - ret = socket(domain, type, protocol); - if (ret < 0) { - errno = socket_error(); - } - return ret; -} - - -#undef accept -int qemu_accept_wrap(int sockfd, struct sockaddr *addr, - socklen_t *addrlen) -{ - int ret; - ret = accept(sockfd, addr, addrlen); - if (ret < 0) { - errno = socket_error(); - } - return ret; -} - - -#undef shutdown -int qemu_shutdown_wrap(int sockfd, int how) -{ - int ret; - ret = shutdown(sockfd, how); - if (ret < 0) { - errno = socket_error(); - } - return ret; -} - - -#undef ioctlsocket -int qemu_ioctlsocket_wrap(int fd, int req, void *val) -{ - int ret; - ret = ioctlsocket(fd, req, val); - if (ret < 0) { - errno = socket_error(); - } - return ret; -} - - -#undef closesocket -int qemu_closesocket_wrap(int fd) -{ - int ret; - ret = closesocket(fd); - if (ret < 0) { - errno = socket_error(); - } - return ret; -} - - -#undef getsockopt -int qemu_getsockopt_wrap(int sockfd, int level, int optname, - void *optval, socklen_t *optlen) -{ - int ret; - ret = getsockopt(sockfd, level, optname, optval, optlen); - if (ret < 0) { - errno = socket_error(); - } - return ret; -} - - -#undef setsockopt -int qemu_setsockopt_wrap(int sockfd, int level, int optname, - const void *optval, socklen_t optlen) -{ - int ret; - ret = setsockopt(sockfd, level, optname, optval, optlen); - if (ret < 0) { - errno = socket_error(); - } - return ret; -} - - -#undef getpeername -int qemu_getpeername_wrap(int sockfd, struct sockaddr *addr, - socklen_t *addrlen) -{ - int ret; - ret = getpeername(sockfd, addr, addrlen); - if (ret < 0) { - errno = socket_error(); - } - return ret; -} - - -#undef getsockname -int qemu_getsockname_wrap(int sockfd, struct sockaddr *addr, - socklen_t *addrlen) -{ - int ret; - ret = getsockname(sockfd, addr, addrlen); - if (ret < 0) { - errno = socket_error(); - } - return ret; -} - - -#undef send -ssize_t qemu_send_wrap(int sockfd, const void *buf, size_t len, int flags) -{ - int ret; - ret = send(sockfd, buf, len, flags); - if (ret < 0) { - errno = socket_error(); - } - return ret; -} - - -#undef sendto -ssize_t qemu_sendto_wrap(int sockfd, const void *buf, size_t len, int flags, - const struct sockaddr *addr, socklen_t addrlen) -{ - int ret; - ret = sendto(sockfd, buf, len, flags, addr, addrlen); - if (ret < 0) { - errno = socket_error(); - } - return ret; -} - - -#undef recv -ssize_t qemu_recv_wrap(int sockfd, void *buf, size_t len, int flags) -{ - int ret; - ret = recv(sockfd, buf, len, flags); - if (ret < 0) { - errno = socket_error(); - } - return ret; -} - - -#undef recvfrom -ssize_t qemu_recvfrom_wrap(int sockfd, void *buf, size_t len, int flags, - struct sockaddr *addr, socklen_t *addrlen) -{ - int ret; - ret = recvfrom(sockfd, buf, len, flags, addr, addrlen); - if (ret < 0) { - errno = socket_error(); - } - return ret; -} |