/usr/include/ace/TTY_IO.h is in libace-dev 6.2.8+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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//=============================================================================
/**
* @file TTY_IO.h
*
* $Id: TTY_IO.h 97246 2013-08-07 07:10:20Z johnnyw $
*
* @author Douglas C. Schmidt <schmidt@uci.edu>
*/
//=============================================================================
#ifndef ACE_TTY_IO_H
#define ACE_TTY_IO_H
#include "ace/DEV_IO.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
/**
* @class ACE_TTY_IO
*
* @brief Class definitions for platform specific TTY features.
*
* This class represents an example interface for a specific
* device (a serial line). It extends the capability of the
* underlying DEV_IO class by adding a control method that takes
* a special structure (Serial_Params) as argument to allow a
* comfortable user interface (away from that annoying termios
* structure, which is very specific to UNIX).
*/
class ACE_Export ACE_TTY_IO : public ACE_DEV_IO
{
public:
ACE_TTY_IO (void);
enum Control_Mode
{
SETPARAMS, ///< Set control parameters.
GETPARAMS ///< Get control parameters.
};
struct ACE_Export Serial_Params
{
Serial_Params (void);
/** Specifies the baudrate at which the communication port operates. */
int baudrate;
/** Specifies the minimum number of bytes in input buffer before XON char
is sent. Negative value indicates that default value should
be used (Win32). */
int xonlim;
/** Specifies the maximum number of bytes in input buffer before XOFF char
is sent. Negative value indicates that default value should
be used (Win32). */
int xofflim;
/** Specifies the minimum number of characters for non-canonical
read (POSIX). */
unsigned int readmincharacters;
/** Specifies the time to wait before returning from read. Negative value
means infinite timeout. */
int readtimeoutmsec;
/** Specifies the parity mode. POSIX supports "none", "even" and
"odd" parity. Additionally Win32 supports "mark" and "space"
parity modes. */
const char *paritymode;
/** Enable & set CTS mode. Note that RTS & CTS are enabled/disabled
together on some systems (RTS/CTS is enabled if either
<code>ctsenb</code> or <code>rtsenb</code> is set). */
bool ctsenb;
/** Enable & set RTS mode. Note that RTS & CTS are enabled/disabled
together on some systems (RTS/CTS is enabled if either
<code>ctsenb</code> or <code>rtsenb</code> is set).
- 0 = Disable RTS.
- 1 = Enable RTS.
- 2 = Enable RTS flow-control handshaking (Win32).
- 3 = Specifies that RTS line will be high if bytes are available
for transmission. After transmission RTS will be low (Win32). */
unsigned char rtsenb;
/** Enable/disable software flow control on input. */
bool xinenb;
/** Enable/disable software flow control on output. */
bool xoutenb;
/** Specifies if device is a modem (POSIX). If not set modem status
lines are ignored. */
bool modem;
/** Enable/disable receiver (POSIX). */
bool rcvenb;
/** Controls whether DSR is disabled or enabled (Win32). */
bool dsrenb;
/** Controls whether DTR is disabled or enabled. */
bool dtrdisable;
/** Data bits. Valid values 5, 6, 7 and 8 data bits.
Additionally Win32 supports 4 data bits. */
unsigned char databits;
/** Stop bits. Valid values are 1 and 2. */
unsigned char stopbits;
};
/** Interface for reading/writing serial device parameters. */
int control (Control_Mode cmd, Serial_Params *arg) const;
#if defined (ACE_NEEDS_DEV_IO_CONVERSION)
/** This is necessary to pass ACE_TTY_IO as parameter to DEV_Connector. */
operator ACE_DEV_IO &();
#endif /* ACE_NEEDS_DEV_IO_CONVERSION */
};
ACE_END_VERSIONED_NAMESPACE_DECL
#endif /* ACE_TTY_IO_H */
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