annotate src/process.h @ 398:74fd4e045ea6 r21-2-29

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date Mon, 13 Aug 2007 11:13:30 +0200
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1 /* Definitions for asynchronous process control in XEmacs.
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2 Copyright (C) 1985, 1992, 1993, 1994 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 #ifndef INCLUDED_process_h_
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22 #define INCLUDED_process_h_
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23
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24 #if defined (NO_SUBPROCESSES)
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25 #undef XPROCESS
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26 #undef CHECK_PROCESS
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27 #undef XSETPROCESS
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28 #define PROCESSP(x) 0
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29 #define PROCESS_LIVE_P(x) 0
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30 #define Fprocess_status(x) Qnil
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31 #define Fget_process(x) Qnil
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32 #define Fget_buffer_process(x) Qnil
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33 #define kill_buffer_processes(x) 0
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34 #define close_process_descs() 0
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35 #define init_xemacs_process() 0
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36 void wait_without_blocking (void);
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37
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38 #else /* not NO_SUBPROCESSES */
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39
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40 /* Only process.c needs to know about the guts of this */
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41
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42 DECLARE_LRECORD (process, Lisp_Process);
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43 #define XPROCESS(x) XRECORD (x, process, Lisp_Process)
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44 #define XSETPROCESS(x, p) XSETRECORD (x, p, process)
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45 #define PROCESSP(x) RECORDP (x, process)
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46 #define CHECK_PROCESS(x) CHECK_RECORD (x, process)
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47 #define PROCESS_LIVE_P(x) (!NILP ((x)->pipe_instream))
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48
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49 #define CHECK_LIVE_PROCESS(x) do { \
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50 CHECK_PROCESS (x); \
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51 if (! PROCESS_LIVE_P (XPROCESS (x))) \
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52 dead_wrong_type_argument (Qprocess_live_p, (x)); \
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53 } while (0)
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54
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55 #ifdef emacs
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56
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57 EXFUN (Fprocess_kill_without_query, 2);
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58 EXFUN (Fprocess_id, 1);
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59
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60 Lisp_Object connect_to_file_descriptor (Lisp_Object name,
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61 Lisp_Object buffer,
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62 Lisp_Object infd,
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63 Lisp_Object outfd);
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64 int connected_via_filedesc_p (Lisp_Process *p);
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65 void kill_buffer_processes (Lisp_Object buffer);
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66 void close_process_descs (void);
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67
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68 void set_process_filter (Lisp_Object proc,
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69 Lisp_Object filter, int filter_does_read);
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70
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71 /* True iff we are about to fork off a synchronous process or if we
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72 are waiting for it. */
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73 extern volatile int synch_process_alive;
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74
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75 /* Nonzero => this is a string explaining death of synchronous subprocess. */
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76 extern const char *synch_process_death;
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77
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78 /* If synch_process_death is zero,
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79 this is exit code of synchronous subprocess. */
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80 extern int synch_process_retcode;
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81
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82
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83 void update_process_status (Lisp_Object p,
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84 Lisp_Object status_symbol,
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85 int exit_code, int core_dumped);
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86
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87 void get_process_streams (Lisp_Process *p,
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88 Lisp_Object *instr, Lisp_Object *outstr);
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89 int get_process_selected_p (Lisp_Process *p);
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90 void set_process_selected_p (Lisp_Process *p, int selected_p);
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91
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92 Lisp_Process *get_process_from_usid (USID usid);
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93
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94 #ifdef HAVE_SOCKETS
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95 int network_connection_p (Lisp_Object process);
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96 #else
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97 #define network_connection_p(x) 0
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98 #endif
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99
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100 extern Lisp_Object Qclosed, Qmulticast, Qopen, Qrun, Qstop, Qtcp, Qudp;
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101 extern Lisp_Object Vprocess_connection_type, Vprocess_list;
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102
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103 /* Report all recent events of a change in process status
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104 (either run the sentinel or output a message).
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105 This is done while Emacs is waiting for keyboard input. */
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106 void status_notify (void);
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107 void kick_status_notify (void);
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108
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109 void deactivate_process (Lisp_Object proc);
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110
100
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111 #ifdef WINDOWSNT
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112 int
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113 #else
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114 void
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115 #endif
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116 child_setup (int in, int out, int err,
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117 char **new_argv, const char *current_dir);
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118
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119 Charcount read_process_output (Lisp_Object proc);
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120
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121 const char *signal_name (int signum);
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122
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123 Lisp_Object canonicalize_host_name (Lisp_Object host);
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124
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125 #endif /* not NO_SUBPROCESSES */
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126
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127 /* The name of the file open to get a null file, or a data sink.
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128 MS-DOS, and OS/2 redefine this. */
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129 #ifndef NULL_DEVICE
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130 #define NULL_DEVICE "/dev/null"
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131 #endif
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132
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133 /* A string listing the possible suffixes used for executable files,
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134 separated by colons. MS-DOS, and OS/2 redefine this. */
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135 #ifndef EXEC_SUFFIXES
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136 #define EXEC_SUFFIXES ""
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137 #endif
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138
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139 #endif /* emacs */
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140
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141 #ifdef HAVE_GETPT
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142 #define PTY_ITERATION
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143 #define PTY_OPEN \
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144 if ((fd = getpt()) < 0 || grantpt (fd) < 0 || unlockpt (fd) < 0) \
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145 return -1;
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146 #define PTY_NAME_SPRINTF
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147 #define PTY_TTY_NAME_SPRINTF strcpy (pty_name, ptsname (fd));
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148 #endif
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149
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150 #endif /* INCLUDED_process_h_ */