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* fhandler.h (PREFERRED_IO_BLKSIZE): Define as 64K.

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* fhandler.cc (fhandler_base::fstat): Set st_blksize to
	PREFERRED_IO_BLKSIZE.
	* fhandler_disk_file.cc (fhandler_base::fstat_helper): Ditto.
	* fhandler_mailslot.cc (fhandler_mailslot::fstat): Ditto.
	* fhandler_raw.cc (fhandler_dev_raw::fstat): Ditto.
This commit is contained in:
Corinna Vinschen
2007-01-04 09:17:55 +00:00
parent 48edcc3fcc
commit 7bef7db5cc
6 changed files with 24 additions and 9 deletions
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7
winsup/cygwin/fhandler.h
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@ -1,7 +1,7 @@
/* fhandler.h
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
2005, 2006 Red Hat, Inc.
2005, 2006, 2007 Red Hat, Inc.
This file is part of Cygwin.
@ -25,6 +25,11 @@ details. */
both flags are set. */
#define O_NONBLOCK_MASK (O_NONBLOCK | OLD_O_NDELAY)
/* It appears that 64K is the block size used for buffered I/O on NT.
Using this blocksize in read/write calls in the application results
in a much better performance than using smaller values. */
#define PREFERRED_IO_BLKSIZE ((blksize_t) 65536)
extern const char *windows_device_names[];
extern struct __cygwin_perfile *perfile_table;
#define __fmode (*(user_data->fmode_ptr))