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428
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1 /*
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2 Copyright (C) 1995 Free Software Foundation, Inc.
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3
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4 This file is part of XEmacs.
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5
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6 XEmacs is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation; either version 2, or (at your option) any
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9 later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 /* Synched up with: Not really in FSF. */
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22
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440
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23 #ifndef INCLUDED_sysproc_h_
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24 #define INCLUDED_sysproc_h_
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25
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428
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26 #ifdef HAVE_VFORK_H
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27 # include <vfork.h>
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28 #endif
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29
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30 #include "systime.h" /* necessary for sys/resource.h; also gets the
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31 FD_* defines on some systems. */
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32 #ifndef WINDOWSNT
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33 #include <sys/resource.h>
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34 #endif
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35
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36 #if !defined (NO_SUBPROCESSES)
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37
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38 #ifdef HAVE_SOCKETS /* TCP connection support, if kernel can do it */
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39 # include <sys/types.h> /* AJK */
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40 # include <sys/socket.h>
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41 # include <netdb.h>
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42 # include <netinet/in.h>
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43 # include <arpa/inet.h>
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44 #ifdef NEED_NET_ERRNO_H
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45 #include <net/errno.h>
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46 #endif /* NEED_NET_ERRNO_H */
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47 #elif defined (SKTPAIR)
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48 # include <sys/socket.h>
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49 #endif /* HAVE_SOCKETS */
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50
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51 /* On some systems, e.g. DGUX, inet_addr returns a 'struct in_addr'. */
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52 #ifdef HAVE_BROKEN_INET_ADDR
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53 # define IN_ADDR struct in_addr
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54 # define NUMERIC_ADDR_ERROR (numeric_addr.s_addr == -1)
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55 #else
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56 # if (LONGBITS > 32)
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57 # define IN_ADDR unsigned int
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58 # else
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59 # define IN_ADDR unsigned long
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60 # endif
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61 # define NUMERIC_ADDR_ERROR (numeric_addr == (IN_ADDR) -1)
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62 #endif
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63
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64 /* Define first descriptor number available for subprocesses. */
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65 #define FIRST_PROC_DESC 3
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66
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67 #ifdef IRIS
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68 # include <sys/sysmacros.h> /* for "minor" */
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69 #endif /* not IRIS */
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70
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71 #endif /* !NO_SUBPROCESSES */
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72
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73 #ifdef AIX
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74 #include <sys/select.h>
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75 #endif
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76
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77 #ifdef FD_SET
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78
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79 /* We could get this from param.h, but better not to depend on finding that.
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80 And better not to risk that it might define other symbols used in this
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81 file. */
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82 # ifdef FD_SETSIZE
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83 # define MAXDESC FD_SETSIZE
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84 # else
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85 # define MAXDESC 64
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86 # endif /* FD_SETSIZE */
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87 # define SELECT_TYPE fd_set
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88
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89 #else /* no FD_SET */
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90
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91 # define MAXDESC 32
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92 # define SELECT_TYPE int
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93
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94 /* Define the macros to access a single-int bitmap of descriptors. */
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95 # define FD_SET(n, p) (*(p) |= (1 << (n)))
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96 # define FD_CLR(n, p) (*(p) &= ~(1 << (n)))
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97 # define FD_ISSET(n, p) (*(p) & (1 << (n)))
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98 # define FD_ZERO(p) (*(p) = 0)
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99
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100 #endif /* no FD_SET */
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101
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102 int poll_fds_for_input (SELECT_TYPE mask);
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103
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104 #ifdef MSDOS
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105 /* #include <process.h> */
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106 /* Damn that local process.h! Instead we can define P_WAIT ourselves. */
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107 #define P_WAIT 1
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108 #endif
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440
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109
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110 #endif /* INCLUDED_sysproc_h_ */
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