usr/src/uts/common/sys/ptem.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  23 /*        All Rights Reserved   */
  24
  25
  26 #ifndef _SYS_PTEM_H
  27 #define _SYS_PTEM_H
  28
  29 #include <sys/termios.h>
  30
  31 #ifdef  __cplusplus
  32 extern "C" {
  33 #endif
  34
  35 /*
  36  * The ptem data structure used to define the global data
  37  * for the psuedo terminal emulation streams module
  38  */
  39 struct ptem {
  40         tcflag_t cflags;        /* copy of c_cflags */
  41         mblk_t *dack_ptr;       /* preallocated mblk used to ACK disconnect */
  42         queue_t *q_ptr;         /* ptem read queue */
  43         struct winsize wsz;     /* struct to hold the windowing info. */
  44         unsigned short state;   /* state of ptem entry: see below */
  45 };
  46
  47 /*
  48  * state flags
  49  */
  50 #define REMOTEMODE      0x1     /* Pty in remote mode */
  51 #define OFLOW_CTL       0x2     /* Outflow control on */
  52 #define IS_PTSTTY       0x4     /* is x/open terminal */
  53
  54 /*
  55  * Constants used to distinguish between a common function invoked
  56  * from the read or write side put procedures
  57  */
  58 #define RDSIDE  1
  59 #define WRSIDE  2
  60
  61 #ifdef  __cplusplus
  62 }
  63 #endif
  64
  65 #endif  /* _SYS_PTEM_H */