annotate src/syscalls.cc @ 2305:5a3f1d00a474

[project @ 1996-07-09 16:20:40 by jwe]
author jwe
date Tue, 09 Jul 1996 16:20:40 +0000
parents dafbde8087e6
children c90105b99479
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
1 /*
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
2
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
3 Copyright (C) 1996 John W. Eaton
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
4
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
5 This file is part of Octave.
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
6
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
7 Octave is free software; you can redistribute it and/or modify it
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
8 under the terms of the GNU General Public License as published by the
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
9 Free Software Foundation; either version 2, or (at your option) any
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
10 later version.
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
11
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
12 Octave is distributed in the hope that it will be useful, but WITHOUT
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
15 for more details.
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
16
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
17 You should have received a copy of the GNU General Public License
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
18 along with Octave; see the file COPYING. If not, write to the Free
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
20
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
21 */
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
22
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
23 // Thomas Baier <baier@ci.tuwien.ac.at> added the original versions of
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
24 // the following functions:
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
25 //
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
26 // mkfifo unlink waitpid
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
27
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
28 #ifdef HAVE_CONFIG_H
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
29 #include <config.h>
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
30 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
31
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
32 #include <cstdio>
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
33
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
34 #ifdef HAVE_UNISTD_H
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
35 #include <sys/types.h>
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
36 #include <unistd.h>
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
37 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
38
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
39 #ifdef HAVE_FCNTL_H
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
40 #include <fcntl.h>
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
41 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
42
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
43 #include "defun.h"
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
44 #include "error.h"
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
45 #include "file-ops.h"
2078
4d43f960f2cc [project @ 1996-04-24 01:12:59 by jwe]
jwe
parents: 2075
diff changeset
46 #include "gripes.h"
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
47 #include "help.h"
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
48 #include "lo-utils.h"
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
49 #include "oct-map.h"
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
50 #include "oct-obj.h"
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
51 #include "oct-stdstrm.h"
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
52 #include "oct-stream.h"
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
53 #include "sysdep.h"
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
54 #include "syswait.h"
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
55 #include "utils.h"
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
56
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
57 static Octave_map
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
58 mk_stat_map (const file_stat& fs)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
59 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
60 Octave_map m;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
61
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
62 m["dev"] = (double) fs.dev ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
63 m["ino"] = (double) fs.ino ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
64 m["modestr"] = fs.mode_as_string ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
65 m["nlink"] = (double) fs.nlink ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
66 m["uid"] = (double) fs.uid ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
67 m["gid"] = (double) fs.gid ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
68 #if defined (HAVE_ST_RDEV)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
69 m["rdev"] = (double) fs.rdev ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
70 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
71 m["size"] = (double) fs.size ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
72 m["atime"] = (double) fs.atime ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
73 m["mtime"] = (double) fs.mtime ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
74 m["ctime"] = (double) fs.ctime ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
75 #if defined (HAVE_ST_BLKSIZE)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
76 m["blksize"] = (double) fs.blksize ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
77 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
78 #if defined (HAVE_ST_BLOCKS)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
79 m["blocks"] = (double) fs.blocks ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
80 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
81
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
82 return m;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
83 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
84
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
85 DEFUN(dup2, args, ,
2080
452f63bfa60c [project @ 1996-04-24 07:49:00 by jwe]
jwe
parents: 2078
diff changeset
86 "fid = dup2 (old, new): duplicate a file descriptor")
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
87 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
88 double retval = -1.0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
89
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
90 #if defined (HAVE_DUP2)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
91 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
92
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
93 if (nargin == 2)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
94 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
95 double d_old = args(0).double_value ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
96 double d_new = args(1).double_value ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
97
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
98 if (! error_state)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
99 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
100 if (D_NINT (d_old) == d_old && D_NINT (d_new) == d_new)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
101 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
102 int i_old = NINT (d_old);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
103 int i_new = NINT (d_new);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
104
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
105 // XXX FIXME XXX -- are these checks sufficient?
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
106 if (i_old >= 0 && i_new >= 0)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
107 retval = (double) dup2 (i_old, i_new);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
108 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
109 error ("dup2: invalid file id");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
110 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
111 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
112 error ("dup2: arguments must be integer values");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
113 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
114 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
115 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
116 print_usage ("dup2");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
117 #else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
118 gripe_not_supported ("dup2");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
119 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
120
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
121 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
122 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
123
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
124 DEFUN(exec, args, ,
2080
452f63bfa60c [project @ 1996-04-24 07:49:00 by jwe]
jwe
parents: 2078
diff changeset
125 "exec (file, args): replace current process with a new process")
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
126 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
127 double retval = -1.0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
128
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
129 #if defined (HAVE_EXECVP)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
130 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
131
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
132 if (nargin == 1 || nargin == 2)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
133 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
134 string exec_file = args(0).string_value ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
135
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
136 if (! error_state)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
137 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
138 char **exec_args = 0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
139
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
140 if (nargin == 2)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
141 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
142 charMatrix chm = args(1).all_strings ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
143
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
144 if (! error_state)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
145 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
146 int nr = chm.rows ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
147 int nc = chm.cols ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
148
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
149 exec_args = new char * [nr+2];
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
150
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
151 // XXX FIXME XXX -- potential leak?
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
152
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
153 exec_args[0] = strsave (exec_file.c_str ());
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
154 exec_args[nr+1] = 0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
155
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
156 for (int i = 0; i < nr; i++)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
157 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
158 exec_args[i+1] = new char [nc+1];
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
159
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
160 for (int j = 0; j < nc; j++)
2305
5a3f1d00a474 [project @ 1996-07-09 16:20:40 by jwe]
jwe
parents: 2263
diff changeset
161 exec_args[i+1][j] = chm (i, j);
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
162
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
163 exec_args[i+1][nc] = '\0';
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
164 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
165 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
166 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
167 error ("exec: arguments must be strings");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
168 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
169 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
170 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
171 exec_args = new char * [2];
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
172
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
173 exec_args[0] = strsave (exec_file.c_str ());
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
174 exec_args[1] = 0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
175 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
176
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
177 if (! error_state)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
178 execvp (exec_file.c_str (), exec_args);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
179 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
180 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
181 error ("exec: first argument must be a string");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
182 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
183 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
184 print_usage ("exec");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
185 #else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
186 gripe_not_supported ("exec");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
187 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
188
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
189 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
190 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
191
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
192 DEFUN(fcntl, args, ,
2080
452f63bfa60c [project @ 1996-04-24 07:49:00 by jwe]
jwe
parents: 2078
diff changeset
193 "fcntl (fid, request, argument): control open file descriptors")
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
194 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
195 double retval = -1.0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
196
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
197 #if defined (HAVE_FCNTL)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
198 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
199
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
200 if (nargin == 3)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
201 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
202 double d_fid = args(0).double_value ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
203 double d_req = args(1).double_value ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
204 double d_arg = args(2).double_value ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
205
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
206 if (! error_state
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
207 && D_NINT (d_fid) == d_fid
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
208 && D_NINT (d_req) == d_req
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
209 && D_NINT (d_arg) == d_arg)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
210 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
211 int fid = NINT (d_fid);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
212 int req = NINT (d_req);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
213 int arg = NINT (d_arg);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
214
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
215 // XXX FIXME XXX -- Need better checking here?
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
216 if (fid < 0)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
217 error ("fcntl: invalid file id");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
218 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
219 retval = fcntl (fid, req, arg);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
220 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
221 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
222 error ("fcntl: file id must be an integer");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
223 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
224 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
225 print_usage ("fcntl");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
226 #else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
227 gripe_not_supported ("fcntl");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
228 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
229
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
230 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
231 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
232
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
233 DEFUN(fork, args, ,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
234 "fork (): create a copy of the current process")
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
235 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
236 double retval = -1.0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
237
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
238 #if defined (HAVE_FORK)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
239 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
240
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
241 if (nargin == 0)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
242 retval = fork ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
243 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
244 print_usage ("fork");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
245 #else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
246 gripe_not_supported ("fork");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
247 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
248
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
249 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
250 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
251
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
252 DEFUN(getpgrp, args, ,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
253 "pgid = getpgrp (): return the process group id of the current process")
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
254 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
255 double retval = -1.0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
256
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
257 #if defined (HAVE_GETPGRP)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
258 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
259
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
260 if (nargin == 0)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
261 retval = getpgrp ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
262 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
263 print_usage ("getpgrp");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
264 #else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
265 gripe_not_supported ("getpgrp");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
266 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
267
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
268 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
269 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
270
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
271 DEFUN(getpid, args, ,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
272 "pid = getpid (): return the process id of the current process")
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
273 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
274 double retval = -1.0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
275
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
276 #if defined (HAVE_GETPID)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
277 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
278
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
279 if (nargin == 0)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
280 retval = getpid ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
281 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
282 print_usage ("getpid");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
283 #else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
284 gripe_not_supported ("getpid");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
285 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
286
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
287 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
288 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
289
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
290 DEFUN(getppid, args, ,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
291 "pid = getppid (): return the process id of the parent process")
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
292 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
293 double retval = -1.0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
294
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
295 #if defined (HAVE_GETPPID)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
296 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
297
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
298 if (nargin == 0)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
299 retval = getppid ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
300 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
301 print_usage ("getppid");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
302 #else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
303 gripe_not_supported ("getppid");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
304 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
305
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
306 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
307 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
308
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
309 DEFUN (lstat, args, ,
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
310 "[S, ERR, MSG] = lstat (NAME)\n\
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
311 \n\
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
312 Like [S, ERR, MSG] = stat (NAME), but if NAME refers to a symbolic\n\
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
313 link, returns information about the link itself, not the file that it\n\
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
314 points to.")
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
315 {
2263
dafbde8087e6 [project @ 1996-05-23 18:44:40 by jwe]
jwe
parents: 2262
diff changeset
316 octave_value_list retval;
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
317
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
318 if (args.length () == 1)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
319 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
320 string fname = oct_tilde_expand (args(0).string_value ());
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
321
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
322 if (! error_state)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
323 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
324 file_stat fs (fname, false);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
325
2263
dafbde8087e6 [project @ 1996-05-23 18:44:40 by jwe]
jwe
parents: 2262
diff changeset
326 if (fs)
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
327 {
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
328 retval(2) = string ();
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
329 retval(1) = 0.0;
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
330 retval(0) = octave_value (mk_stat_map (fs));
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
331 }
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
332 else
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
333 {
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
334 retval(2) = fs.error ();
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
335 retval(1) = -1.0;
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
336 retval(0) = Matrix ();
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
337 }
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
338 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
339 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
340 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
341 print_usage ("lstat");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
342
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
343 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
344 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
345
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
346 DEFUN (mkfifo, args, ,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
347 "STATUS = mkfifo (NAME, MODE)\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
348 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
349 Create a FIFO special file named NAME with file mode MODE\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
350 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
351 STATUS is:\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
352 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
353 != 0 : if mkfifo failed\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
354 0 : if the FIFO special file could be created")
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
355 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
356 double retval = -1.0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
357
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
358 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
359
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
360 if (nargin == 2)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
361 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
362 if (args(0).is_string ())
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
363 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
364 string name = args(0).string_value ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
365
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
366 if (args(1).is_scalar_type ())
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
367 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
368 long mode = (long) args(1).double_value ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
369
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
370 retval = oct_mkfifo (name, mode);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
371 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
372 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
373 error ("mkfifo: MODE must be an integer");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
374 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
375 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
376 error ("mkfifo: file name must be a string");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
377
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
378 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
379 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
380 print_usage ("mkfifo");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
381
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
382 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
383 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
384
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
385 DEFUN (pipe, args, ,
2080
452f63bfa60c [project @ 1996-04-24 07:49:00 by jwe]
jwe
parents: 2078
diff changeset
386 "[file_ids, status] = pipe (): create an interprocess channel")
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
387 {
2086
bfb775fb6fe8 [project @ 1996-04-25 05:55:19 by jwe]
jwe
parents: 2080
diff changeset
388 octave_value_list retval (2, octave_value (-1.0));
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
389
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
390 #if defined (HAVE_PIPE)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
391 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
392
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
393 if (nargin == 0)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
394 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
395 int fid[2];
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
396
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
397 if (pipe (fid) >= 0)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
398 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
399 FILE *in_file = fdopen (fid[0], "r");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
400 FILE *out_file = fdopen (fid[1], "w");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
401
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
402 octave_istdiostream *is
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
403 = new octave_istdiostream (string (), in_file);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
404
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
405 octave_ostdiostream *os
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
406 = new octave_ostdiostream (string (), out_file);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
407
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
408 Matrix file_ids (1, 2);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
409
2305
5a3f1d00a474 [project @ 1996-07-09 16:20:40 by jwe]
jwe
parents: 2263
diff changeset
410 file_ids (0, 0) = octave_stream_list::insert (is);
5a3f1d00a474 [project @ 1996-07-09 16:20:40 by jwe]
jwe
parents: 2263
diff changeset
411 file_ids (0, 1) = octave_stream_list::insert (os);
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
412
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
413 retval(0) = file_ids;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
414 retval(1) = 0.0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
415 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
416 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
417 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
418 print_usage ("pipe");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
419 #else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
420 gripe_not_supported ("pipe");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
421 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
422
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
423 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
424 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
425
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
426 DEFUN (stat, args, ,
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
427 "[S, ERR, MSG] = stat (NAME)\n\
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
428 \n\
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
429 Given the name of a file, return a structure S with the following
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
430 elements:\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
431 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
432 dev : id of device containing a directory entry for this file\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
433 ino : file number of the file\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
434 modestr : file mode, as a string of ten letters or dashes as in ls -l\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
435 nlink : number of links\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
436 uid : user id of file's owner\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
437 gid : group id of file's group \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
438 rdev : id of device for block or character special files\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
439 size : size in bytes\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
440 atime : time of last access\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
441 mtime : time of last modification\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
442 ctime : time of last file status change\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
443 blksize : size of blocks in the file\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
444 blocks : number of blocks allocated for file\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
445 \n\
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
446 If the call is successful, ERR is 0 and MSG is an empty string.\n\
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
447 \n\
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
448 If the file does not exist, or some other error occurs, S is an\n\
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
449 empty matrix, ERR is -1, and MSG contains the corresponding\n\
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
450 system error message.")
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
451 {
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
452 octave_value_list retval;
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
453
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
454 if (args.length () == 1)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
455 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
456 string fname = oct_tilde_expand (args(0).string_value ());
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
457
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
458 if (! error_state)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
459 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
460 file_stat fs (fname);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
461
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
462 if (fs)
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
463 {
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
464 retval(2) = string ();
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
465 retval(1) = 0.0;
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
466 retval(0) = octave_value (mk_stat_map (fs));
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
467 }
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
468 else
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
469 {
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
470 retval(2) = fs.error ();
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
471 retval(1) = -1.0;
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
472 retval(0) = Matrix ();
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
473 }
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
474 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
475 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
476 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
477 print_usage ("stat");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
478
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
479 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
480 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
481
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
482 DEFUN (unlink, args, ,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
483 "STATUS = unlink (NAME)\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
484 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
485 Delete the file NAME\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
486 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
487 STATUS is:\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
488 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
489 != 0 : if unlink failed\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
490 0 : if the file could be successfully deleted")
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
491 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
492 double retval = -1.0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
493
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
494 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
495
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
496 if (nargin == 1)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
497 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
498 if (args(0).is_string ())
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
499 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
500 string name = args(0).string_value ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
501
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
502 retval = oct_unlink (name);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
503 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
504 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
505 error ("unlink: file name must be a string");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
506 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
507 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
508 print_usage ("unlink");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
509
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
510 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
511 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
512
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
513 DEFUN (waitpid, args, ,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
514 "STATUS = waitpid (PID, OPTIONS)\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
515 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
516 wait for process PID to terminate\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
517 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
518 PID can be:\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
519 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
520 -1 : wait for any child process\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
521 0 : wait for any child process whose process group ID is equal to\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
522 that of the Octave interpreter process.\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
523 > 0 : wait for termination of the child process with ID PID.\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
524 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
525 OPTIONS is:\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
526 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
527 0 : wait until signal is received or a child process exits (this\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
528 is the default if the OPTIONS argument is missing) \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
529 1 : do not hang if status is not immediately available\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
530 2 : report the status of any child processes that are\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
531 stopped, and whose status has not yet been reported\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
532 since they stopped\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
533 3 : implies both 1 and 2\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
534 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
535 STATUS is:\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
536 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
537 -1 : if an error occured\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
538 > 0 : the process ID of the child process that exited")
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
539 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
540 double retval = -1.0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
541
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
542 #if defined (HAVE_WAITPID)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
543 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
544
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
545 if (nargin == 1 || nargin == 2)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
546 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
547 double pid_num = args(0).double_value ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
548
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
549 if (! error_state)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
550 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
551 if (D_NINT (pid_num) != pid_num)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
552 error ("waitpid: PID must be an integer value");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
553 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
554 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
555 pid_t pid = (pid_t) pid_num;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
556
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
557 int options = 0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
558
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
559 if (args.length () == 2)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
560 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
561 double options_num = args(1).double_value ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
562
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
563 if (! error_state)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
564 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
565 if (D_NINT (options_num) != options_num)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
566 error ("waitpid: PID must be an integer value");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
567 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
568 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
569 options = NINT (options_num);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
570 if (options < 0 || options > 3)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
571 error ("waitpid: invalid OPTIONS value specified");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
572 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
573 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
574 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
575
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
576 if (! error_state)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
577 retval = waitpid (pid, 0, options);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
578 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
579 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
580 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
581 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
582 print_usage ("waitpid");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
583 #else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
584 gripe_not_supported ("waitpid");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
585 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
586
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
587 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
588 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
589
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
590 #if !defined (O_NONBLOCK) && defined (O_NDELAY)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
591 #define O_NONBLOCK O_NDELAY
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
592 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
593
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
594 void
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
595 symbols_of_syscalls (void)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
596 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
597 #if defined (F_DUPFD)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
598 DEFCONST (F_DUPFD, (double) F_DUPFD, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
599 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
600 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
601
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
602 #if defined (F_GETFD)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
603 DEFCONST (F_GETFD, (double) F_GETFD, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
604 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
605 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
606
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
607 #if defined (F_GETFL)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
608 DEFCONST (F_GETFL, (double) F_GETFL, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
609 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
610 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
611
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
612 #if defined (F_SETFD)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
613 DEFCONST (F_SETFD, (double) F_SETFD, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
614 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
615 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
616
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
617 #if defined (F_SETFL)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
618 DEFCONST (F_SETFL, (double) F_SETFL, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
619 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
620 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
621
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
622 #if defined (O_APPEND)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
623 DEFCONST (O_APPEND, (double) O_APPEND, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
624 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
625 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
626
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
627 #if defined (O_CREAT)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
628 DEFCONST (O_CREAT, (double) O_CREAT, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
629 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
630 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
631
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
632 #if defined (O_EXCL)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
633 DEFCONST (O_EXCL, (double) O_EXCL, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
634 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
635 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
636
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
637 #if defined (O_NONBLOCK)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
638 DEFCONST (O_NONBLOCK, (double) O_NONBLOCK, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
639 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
640 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
641
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
642 #if defined (O_RDONLY)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
643 DEFCONST (O_RDONLY, (double) O_RDONLY, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
644 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
645 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
646
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
647 #if defined (O_RDWR)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
648 DEFCONST (O_RDWR, (double) O_RDWR, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
649 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
650 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
651
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
652 #if defined (O_TRUNC)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
653 DEFCONST (O_TRUNC, (double) O_TRUNC, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
654 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
655 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
656
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
657 #if defined (O_WRONLY)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
658 DEFCONST (O_WRONLY, (double) O_WRONLY, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
659 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
660 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
661 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
662
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
663 /*
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
664 ;;; Local Variables: ***
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
665 ;;; mode: C++ ***
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
666 ;;; End: ***
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
667 */