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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>
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@ -22,8 +22,6 @@
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*
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* TODO
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* Use the file flag hints O_SEQUENTIAL, O_RANDOM, O_SHORT_LIVED
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*/
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#include <direct.h>
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@ -1609,8 +1607,12 @@ static int msvcrt_get_flags(const wchar_t* mode, int *open_flags, int* stream_fl
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case 'w':
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break;
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case 'S':
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if (!(*open_flags & _O_RANDOM))
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*open_flags |= _O_SEQUENTIAL;
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break;
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case 'R':
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FIXME("ignoring cache optimization flag: %c\n", mode[-1]);
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if (!(*open_flags & _O_SEQUENTIAL))
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*open_flags |= _O_RANDOM;
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break;
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default:
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ERR("incorrect mode flag: %c\n", mode[-1]);
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@ -2269,6 +2271,13 @@ int CDECL _wsopen_dispatch( const wchar_t* path, int oflags, int shflags, int pm
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sharing |= FILE_SHARE_DELETE;
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}
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if (oflags & _O_RANDOM)
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attrib |= FILE_FLAG_RANDOM_ACCESS;
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if (oflags & _O_SEQUENTIAL)
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attrib |= FILE_FLAG_SEQUENTIAL_SCAN;
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if (oflags & _O_SHORT_LIVED)
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attrib |= FILE_ATTRIBUTE_TEMPORARY;
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sa.nLength = sizeof( SECURITY_ATTRIBUTES );
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sa.lpSecurityDescriptor = NULL;
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sa.bInheritHandle = !(oflags & _O_NOINHERIT);
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