fee78fd6d2
In case of -daemonize, we write non-zero to the daemon pipe only if pidfile creation failed, so the parent will report error about pidfile problem. There's no need to make special case for this, since all other errors are reported by the child just fine. Let the parent report error and simplify logic in os_daemonize(). This way, we don't need os_pidfile_error() function, since it only prints error now, so put the error reporting printf into the only place where qemu_create_pidfile() is called, in vl.c. While at it, fix wrong indentation in os_daemonize(). Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
131 lines
3.7 KiB
C
131 lines
3.7 KiB
C
/*
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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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* 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 <mmsystem.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <signal.h>
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#include <time.h>
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#include <errno.h>
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#include <sys/time.h>
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#include "config-host.h"
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#include "sysemu/sysemu.h"
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#include "qemu-options.h"
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/***********************************************************/
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/* Functions missing in mingw */
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int setenv(const char *name, const char *value, int overwrite)
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{
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int result = 0;
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if (overwrite || !getenv(name)) {
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size_t length = strlen(name) + strlen(value) + 2;
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char *string = g_malloc(length);
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snprintf(string, length, "%s=%s", name, value);
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result = putenv(string);
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/* Windows takes a copy and does not continue to use our string.
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* Therefore it can be safely freed on this platform. POSIX code
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* typically has to leak the string because according to the spec it
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* becomes part of the environment.
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*/
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g_free(string);
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}
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return result;
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}
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static BOOL WINAPI qemu_ctrl_handler(DWORD type)
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{
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qemu_system_shutdown_request();
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/* Windows 7 kills application when the function returns.
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Sleep here to give QEMU a try for closing.
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Sleep period is 10000ms because Windows kills the program
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after 10 seconds anyway. */
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Sleep(10000);
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return TRUE;
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}
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static TIMECAPS mm_tc;
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static void os_undo_timer_resolution(void)
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{
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timeEndPeriod(mm_tc.wPeriodMin);
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}
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void os_setup_early_signal_handling(void)
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{
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SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
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timeGetDevCaps(&mm_tc, sizeof(mm_tc));
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timeBeginPeriod(mm_tc.wPeriodMin);
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atexit(os_undo_timer_resolution);
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}
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/* Look for support files in the same directory as the executable. */
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char *os_find_datadir(void)
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{
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return qemu_get_exec_dir();
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}
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void os_set_line_buffering(void)
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{
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setbuf(stdout, NULL);
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setbuf(stderr, NULL);
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}
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/*
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* Parse OS specific command line options.
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* return 0 if option handled, -1 otherwise
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*/
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void os_parse_cmd_args(int index, const char *optarg)
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{
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return;
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}
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int qemu_create_pidfile(const char *filename)
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{
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char buffer[128];
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int len;
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HANDLE file;
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OVERLAPPED overlap;
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BOOL ret;
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memset(&overlap, 0, sizeof(overlap));
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file = CreateFile(filename, GENERIC_WRITE, FILE_SHARE_READ, NULL,
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OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
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if (file == INVALID_HANDLE_VALUE) {
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return -1;
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}
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len = snprintf(buffer, sizeof(buffer), "%d\n", getpid());
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ret = WriteFile(file, (LPCVOID)buffer, (DWORD)len,
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NULL, &overlap);
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CloseHandle(file);
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if (ret == 0) {
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return -1;
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}
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return 0;
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}
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