Module: wine Branch: master Commit: 1ca67c8ba20886e1a71bb4a2aa94638beaba4534 URL: https://source.winehq.org/git/wine.git/?a=commit;h=1ca67c8ba20886e1a71bb4a2a...
Author: Luke Deller luke@deller.id.au Date: Wed Aug 4 21:29:34 2021 +1000
msvcrt: Translate file open access pattern hints.
Translate access pattern hints supplied to fopen / _open into the corresponding attributes for the lower level CreateFileW call.
Signed-off-by: Luke Deller luke@deller.id.au Signed-off-by: Piotr Caban piotr@codeweavers.com Signed-off-by: Alexandre Julliard julliard@winehq.org
---
dlls/msvcrt/file.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/dlls/msvcrt/file.c b/dlls/msvcrt/file.c index 6e955099090..b0eeaf2a351 100644 --- a/dlls/msvcrt/file.c +++ b/dlls/msvcrt/file.c @@ -22,8 +22,6 @@ * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA * - * TODO - * Use the file flag hints O_SEQUENTIAL, O_RANDOM, O_SHORT_LIVED */
#include <direct.h> @@ -1609,8 +1607,12 @@ static int msvcrt_get_flags(const wchar_t* mode, int *open_flags, int* stream_fl case 'w': break; case 'S': + if (!(*open_flags & _O_RANDOM)) + *open_flags |= _O_SEQUENTIAL; + break; case 'R': - FIXME("ignoring cache optimization flag: %c\n", mode[-1]); + if (!(*open_flags & _O_SEQUENTIAL)) + *open_flags |= _O_RANDOM; break; default: ERR("incorrect mode flag: %c\n", mode[-1]); @@ -2269,6 +2271,13 @@ int CDECL _wsopen_dispatch( const wchar_t* path, int oflags, int shflags, int pm sharing |= FILE_SHARE_DELETE; }
+ if (oflags & _O_RANDOM) + attrib |= FILE_FLAG_RANDOM_ACCESS; + if (oflags & _O_SEQUENTIAL) + attrib |= FILE_FLAG_SEQUENTIAL_SCAN; + if (oflags & _O_SHORT_LIVED) + attrib |= FILE_ATTRIBUTE_TEMPORARY; + sa.nLength = sizeof( SECURITY_ATTRIBUTES ); sa.lpSecurityDescriptor = NULL; sa.bInheritHandle = !(oflags & _O_NOINHERIT);