| /* |
| * hdhomerun_os_windows.c |
| * |
| * Copyright © 2006-2010 Silicondust USA Inc. <www.silicondust.com>. |
| * |
| * 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 3 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/>. |
| * |
| * As a special exception to the GNU Lesser General Public License, |
| * you may link, statically or dynamically, an application with a |
| * publicly distributed version of the Library to produce an |
| * executable file containing portions of the Library, and |
| * distribute that executable file under terms of your choice, |
| * without any of the additional requirements listed in clause 4 of |
| * the GNU Lesser General Public License. |
| * |
| * By "a publicly distributed version of the Library", we mean |
| * either the unmodified Library as distributed by Silicondust, or a |
| * modified version of the Library that is distributed under the |
| * conditions defined in the GNU Lesser General Public License. |
| */ |
| |
| #include "hdhomerun_os.h" |
| |
| uint32_t random_get32(void) |
| { |
| HCRYPTPROV hProv; |
| if (!CryptAcquireContext(&hProv, 0, 0, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT)) { |
| return (uint32_t)rand(); |
| } |
| |
| uint32_t Result; |
| CryptGenRandom(hProv, sizeof(Result), (BYTE*)&Result); |
| |
| CryptReleaseContext(hProv, 0); |
| return Result; |
| } |
| |
| uint64_t getcurrenttime(void) |
| { |
| static pthread_mutex_t lock = INVALID_HANDLE_VALUE; |
| static uint64_t result = 0; |
| static uint32_t previous_time = 0; |
| |
| /* Initialization is not thread safe. */ |
| if (lock == INVALID_HANDLE_VALUE) { |
| pthread_mutex_init(&lock, NULL); |
| } |
| |
| pthread_mutex_lock(&lock); |
| |
| uint32_t current_time = GetTickCount(); |
| |
| if (current_time > previous_time) { |
| result += current_time - previous_time; |
| } |
| |
| previous_time = current_time; |
| |
| pthread_mutex_unlock(&lock); |
| return result; |
| } |
| |
| void msleep_approx(uint64_t ms) |
| { |
| Sleep((DWORD)ms); |
| } |
| |
| void msleep_minimum(uint64_t ms) |
| { |
| uint64_t stop_time = getcurrenttime() + ms; |
| |
| while (1) { |
| uint64_t current_time = getcurrenttime(); |
| if (current_time >= stop_time) { |
| return; |
| } |
| |
| msleep_approx(stop_time - current_time); |
| } |
| } |
| |
| int pthread_create(pthread_t *tid, void *attr, LPTHREAD_START_ROUTINE start, void *arg) |
| { |
| *tid = CreateThread(NULL, 0, start, arg, 0, NULL); |
| if (!*tid) { |
| return (int)GetLastError(); |
| } |
| return 0; |
| } |
| |
| int pthread_join(pthread_t tid, void **value_ptr) |
| { |
| while (1) { |
| DWORD ExitCode = 0; |
| if (!GetExitCodeThread(tid, &ExitCode)) { |
| return (int)GetLastError(); |
| } |
| if (ExitCode != STILL_ACTIVE) { |
| return 0; |
| } |
| } |
| } |
| |
| void pthread_mutex_init(pthread_mutex_t *mutex, void *attr) |
| { |
| *mutex = CreateMutex(NULL, FALSE, NULL); |
| } |
| |
| void pthread_mutex_lock(pthread_mutex_t *mutex) |
| { |
| WaitForSingleObject(*mutex, INFINITE); |
| } |
| |
| void pthread_mutex_unlock(pthread_mutex_t *mutex) |
| { |
| ReleaseMutex(*mutex); |
| } |
| |
| /* |
| * The console output format should be set to UTF-8, however in XP and Vista this breaks batch file processing. |
| * Attempting to restore on exit fails to restore if the program is terminated by the user. |
| * Solution - set the output format each printf. |
| */ |
| void console_vprintf(const char *fmt, va_list ap) |
| { |
| UINT cp = GetConsoleOutputCP(); |
| SetConsoleOutputCP(CP_UTF8); |
| vprintf(fmt, ap); |
| SetConsoleOutputCP(cp); |
| } |
| |
| void console_printf(const char *fmt, ...) |
| { |
| va_list ap; |
| va_start(ap, fmt); |
| console_vprintf(fmt, ap); |
| va_end(ap); |
| } |