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with SetFileTime() this time
This commit is contained in:
John Cupitt 2017-09-07 16:37:35 +01:00
parent 0911b4a282
commit 0a9593b3bf
1 changed files with 15 additions and 19 deletions
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34
libvips/iofuncs/util.c
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@ -544,25 +544,21 @@ vips__write( int fd, const void *buf, size_t count )
}
#ifdef OS_WIN32
/* Deletes and resets the create date on the named file. This is necessary on
* Windows, or the create date may be copied over from an existing file of the
* same name.
/* Set the create date on a file. On Windows, the create date may be copied
* over from an existing file of the same name, unless you reset it.
*
* See https://blogs.msdn.microsoft.com/oldnewthing/20050715-14/?p=34923
*/
int
vips__delete_create( const char *path16 )
void
vips__set_create_time( int fd )
{
HANDLE handle;
FILETIME current_time;
/* Even though we're only writing, ask for read as well to
* speed up operation over network shares.
*/
handle = CreateFileW( path16, GENERIC_READ | GENERIC_WRITE,
0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL );
if( handle != INVALID_HANDLE_VALUE )
CloseHandle( handle );
if( (handle = _get_osfhandle( fd )) == INVALID_HANDLE_VALUE )
return;
GetSystemTime( &current_time );
SetFileTime( handle, &current_time, NULL, NULL );
}
#endif /*OS_WIN32*/
@ -589,11 +585,11 @@ vips__open( const char *filename, int flags, ... )
return( -1 );
}
if( mode & O_CREAT )
vips__delete_create( path16 );
fd = _wopen( path16, flags, mode );
if( mode & O_CREAT )
vips__set_create_time( fd );
g_free( path16 );
}
#else /*!OS_WIN32*/
@ -632,13 +628,13 @@ vips__fopen( const char *filename, const char *mode )
return( NULL );
}
if( mode[0] == 'w' )
vips__delete_create( path16 );
fp = _wfopen( path16, mode16 );
g_free( path16 );
g_free( mode16 );
if( mode[0] == 'w' )
vips__set_create_time( _fileno( fp ) );
#else /*!OS_WIN32*/
fp = fopen( filename, mode );
#endif