/***************************************************************************** * osdep.c: platform-specific code ***************************************************************************** * Copyright (C) 2003-2019 x264 project * * Authors: Steven Walters * Laurent Aimar * Henrik Gramner * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA. * * This program is also available under a commercial proprietary license. * For more information, contact us at licensing@x264.com. *****************************************************************************/ #include "osdep.h" #ifdef _WIN32 #include #include #endif #if SYS_WINDOWS #include #include #else #include #endif #include #if PTW32_STATIC_LIB /* this is a global in pthread-win32 to indicate if it has been initialized or not */ extern int ptw32_processInitialized; #endif int64_t x264_mdate( void ) { #if SYS_WINDOWS struct timeb tb; ftime( &tb ); return ((int64_t)tb.time * 1000 + (int64_t)tb.millitm) * 1000; #elif HAVE_CLOCK_GETTIME struct timespec ts; clock_gettime( CLOCK_MONOTONIC, &ts ); return (int64_t)ts.tv_sec * 1000000 + (int64_t)ts.tv_nsec / 1000; #else struct timeval tv_date; gettimeofday( &tv_date, NULL ); return (int64_t)tv_date.tv_sec * 1000000 + (int64_t)tv_date.tv_usec; #endif } #if HAVE_WIN32THREAD || PTW32_STATIC_LIB /* state of the threading library being initialized */ static volatile LONG threading_is_init = 0; static void threading_destroy( void ) { #if PTW32_STATIC_LIB pthread_win32_thread_detach_np(); pthread_win32_process_detach_np(); #else x264_win32_threading_destroy(); #endif } static int threading_init( void ) { #if PTW32_STATIC_LIB /* if static pthread-win32 is already initialized, then do nothing */ if( ptw32_processInitialized ) return 0; if( !pthread_win32_process_attach_np() ) return -1; #else if( x264_win32_threading_init() ) return -1; #endif /* register cleanup to run at process termination */ atexit( threading_destroy ); return 0; } int x264_threading_init( void ) { LONG state; while( (state = InterlockedCompareExchange( &threading_is_init, -1, 0 )) != 0 ) { /* if already init, then do nothing */ if( state > 0 ) return 0; } if( threading_init() < 0 ) { InterlockedExchange( &threading_is_init, 0 ); return -1; } InterlockedExchange( &threading_is_init, 1 ); return 0; } #endif #ifdef _WIN32 /* Functions for dealing with Unicode on Windows. */ FILE *x264_fopen( const char *filename, const char *mode ) { wchar_t filename_utf16[MAX_PATH]; wchar_t mode_utf16[16]; if( utf8_to_utf16( filename, filename_utf16 ) && utf8_to_utf16( mode, mode_utf16 ) ) return _wfopen( filename_utf16, mode_utf16 ); return NULL; } int x264_rename( const char *oldname, const char *newname ) { wchar_t oldname_utf16[MAX_PATH]; wchar_t newname_utf16[MAX_PATH]; if( utf8_to_utf16( oldname, oldname_utf16 ) && utf8_to_utf16( newname, newname_utf16 ) ) { /* POSIX says that rename() removes the destination, but Win32 doesn't. */ _wunlink( newname_utf16 ); return _wrename( oldname_utf16, newname_utf16 ); } return -1; } int x264_stat( const char *path, x264_struct_stat *buf ) { wchar_t path_utf16[MAX_PATH]; if( utf8_to_utf16( path, path_utf16 ) ) return _wstati64( path_utf16, buf ); return -1; } #if !HAVE_WINRT int x264_vfprintf( FILE *stream, const char *format, va_list arg ) { HANDLE console = NULL; DWORD mode; if( stream == stdout ) console = GetStdHandle( STD_OUTPUT_HANDLE ); else if( stream == stderr ) console = GetStdHandle( STD_ERROR_HANDLE ); /* Only attempt to convert to UTF-16 when writing to a non-redirected console screen buffer. */ if( GetConsoleMode( console, &mode ) ) { char buf[4096]; wchar_t buf_utf16[4096]; va_list arg2; va_copy( arg2, arg ); int length = vsnprintf( buf, sizeof(buf), format, arg2 ); va_end( arg2 ); if( length > 0 && length < sizeof(buf) ) { /* WriteConsoleW is the most reliable way to output Unicode to a console. */ int length_utf16 = MultiByteToWideChar( CP_UTF8, 0, buf, length, buf_utf16, sizeof(buf_utf16)/sizeof(wchar_t) ); DWORD written; WriteConsoleW( console, buf_utf16, length_utf16, &written, NULL ); return length; } } return vfprintf( stream, format, arg ); } int x264_is_pipe( const char *path ) { wchar_t path_utf16[MAX_PATH]; if( utf8_to_utf16( path, path_utf16 ) ) return WaitNamedPipeW( path_utf16, 0 ); return 0; } #endif #if defined(_MSC_VER) && _MSC_VER < 1900 /* MSVC pre-VS2015 has broken snprintf/vsnprintf implementations which are incompatible with C99. */ int x264_snprintf( char *s, size_t n, const char *fmt, ... ) { va_list arg; va_start( arg, fmt ); int length = x264_vsnprintf( s, n, fmt, arg ); va_end( arg ); return length; } int x264_vsnprintf( char *s, size_t n, const char *fmt, va_list arg ) { int length = -1; if( n ) { va_list arg2; va_copy( arg2, arg ); length = _vsnprintf( s, n, fmt, arg2 ); va_end( arg2 ); /* _(v)snprintf adds a null-terminator only if the length is less than the buffer size. */ if( length < 0 || length >= n ) s[n-1] = '\0'; } /* _(v)snprintf returns a negative number if the length is greater than the buffer size. */ if( length < 0 ) return _vscprintf( fmt, arg ); return length; } #endif #endif