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StdLib/Include: Minor changes in preparation for Interactive I/O (TTY) functionality.

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StdLib/Include/
  stdlib.h
    Update MB_CUR_MAX to 3, the max. size of a MBCS character.
    Improve comments for wcstombs()
    Declare implementation-specific MBCS utility functions:
      OneWcToMcLen()    Determine the number of bytes needed to represent
                        a Wide character as a MBCS character.
      EstimateWtoM()    Determine the number of bytes needed to represent
                        a Wide character string as a MBCS string.
      CountMbcsChars()  Determine the number of characters in a MBCS string.

  wchar.h
    Improve comments.

StdLib/Include/sys/
  fcntl.h
    Define new Open flags.
    Remove obsolete and commented-out lines.

  termios.h
    Add Intel Copyright notice and Open-Source License.
    Change c_cc index macros into enumerated values.
    Clean up flag definitions for visual alignment as well as UEFI relevance.
    Move c_ispeed and c_ospeed termios members to end for better alignment.
    Comment out declarations for functions not yet implemented.
    Add an enum defining values for the UEFI extended function keys.

Contributed-under: TianoCore Contribution Agreement 1.0
Reviewed-by: erik.c.bjorge@intel.com
Reviewed-by: jaben.carsey@intel.com


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13741 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
darylm503
2012-09-25 22:01:58 +00:00
parent 9fa90bb491
commit c352b29843
4 changed files with 254 additions and 220 deletions
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8
StdLib/Include/sys/fcntl.h
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@@ -2,7 +2,7 @@
This file includes the definitions for open and fcntl described by POSIX
for <fcntl.h>; it also includes related kernel definitions.
Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2010 - 2012, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials are licensed and made
available under the terms and conditions of the BSD License which
accompanies this distribution. The full text of the license may be found
@@ -72,14 +72,16 @@
#define O_TRUNC 0x00000400 ///< truncate to zero length
#define O_EXCL 0x00000800 ///< error if already exists
#define O_DIRECTORY 0x00001000 ///< error if path is not a directory
#define O_NOCTTY 0x00002000 ///< Don't make this the controlling TTY
#define O_TTY_INIT 0x00004000 ///< Initialize TTY to "sane" values on open
/* UEFI-specific open-only flags. */
#define O_HIDDEN 0x00010000 ///< Hidden file attribute
#define O_SYSTEM 0x00020000 ///< System file attribute
#define O_ARCHIVE 0x00040000 ///< Archive file attribute
/// @}
//#define O_DIRECT 0x00080000 /* direct I/O hint */
#define O_SETMASK 0x0000000F ///< Flags modifiable by F_SETFD (fcntl)
/*