sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

StdLib: Add terminal type line editing (Interactive IO) for console devices.

Browse Source 
Adds a subset of the terminal I/O capabilities described in the Single Unix Specification, V4.
Supports:
    Erase previous character.  Default is Backspace or ^H
    Erase line.  Default is ^U
TAB characters are supported and, by default, are rendered as 8 spaces.  They will still be read as a single TAB character.
Both Canonical and Non-Canonical modes are supported.
If a terminal device is opened with O_TTY_INIT in the mode, the device will be initialized to "sane" values for interactive use.  It will be in Canonical mode, Enter will be translated to NewLine and on output, a NewLine is translated to CRLF.  Echoing will be on, control characters are output as ^X, and TABs are expanded.
See the new <sys/termios.h> file for more information.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by:  daryl.mcdaniel@intel.com
Reviewed-by:    erik.c.bjorge@intel.com
Reviewed-by:    leroy.p.leahy@intel.com
Reviewed-by:    lee.g.rosenbaum@intel.com
Reviewed-by:    jaben.carsey@intel.com





git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13989 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
darylm503
2012-12-11 21:19:14 +00:00
parent e575c101d8
commit 6c6c850ad6
23 changed files with 3404 additions and 218 deletions
Download Patch File Download Diff File Expand all files Collapse all files

105
StdLib/Include/Containers/ModuloUtil.h Normal file
View File

@ -0,0 +1,105 @@
/** @file
Utility functions for performing basic math operations constrained within a
modulus.
These functions are intended to simplify small changes to a value which much
remain within a specified modulus. Changes must be less than or equal to
the modulus specified by MaxVal.
Copyright (c) 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 at
http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _MODULO_UTIL_H
#define _MODULO_UTIL_H
#include <Uefi.h>
#include <sys/EfiCdefs.h>
__BEGIN_DECLS
/** Counter = (Counter + 1) % MaxVal;
Counter is always expected to be LESS THAN MaxVal.
0 <= Counter < MaxVal
@param[in] Counter The value to be incremented.
@param[in] MaxVal Modulus of the operation.
@return Returns the result of incrementing Counter, modulus MaxVal.
If Counter >= MaxVal, returns -1.
**/
INT32
EFIAPI
ModuloIncrement(
UINT32 Counter,
UINT32 MaxVal
);
/** Counter = (Counter - 1) % MaxVal;
Counter is always expected to be LESS THAN MaxVal.
0 <= Counter < MaxVal
@param[in] Counter The value to be decremented.
@param[in] MaxVal Modulus of the operation.
@return Returns the result of decrementing Counter, modulus MaxVal.
If Counter >= MaxVal, returns -1.
**/
INT32
EFIAPI
ModuloDecrement(
UINT32 Counter,
UINT32 MaxVal
);
/** Counter = (Counter + Increment) % MaxVal;
@param[in] Counter The value to be incremented.
@param[in] Increment The value to add to Counter.
@param[in] MaxVal Modulus of the operation.
@return Returns the result of adding Increment to Counter, modulus MaxVal,
or -1 if Increment is larger than MaxVal.
**/
INT32
EFIAPI
ModuloAdd (
UINT32 Counter,
UINT32 Increment,
UINT32 MaxVal
);
/** Increment Counter but don't increment past MaxVal.
@param[in] Counter The value to be decremented.
@param[in] MaxVal The upper bound for Counter. Counter < MaxVal.
@return Returns the result of incrementing Counter.
**/
UINT32
EFIAPI
BoundIncrement(
UINT32 Counter,
UINT32 MaxVal
);
/** Decrement Counter but don't decrement past zero.
@param[in] Counter The value to be decremented.
@return Returns the result of decrementing Counter.
**/
UINT32
EFIAPI
BoundDecrement(
UINT32 Counter
);
__END_DECLS
#endif /* _MODULO_UTIL_H */