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root/cebix/Frodo4/Src/CmdPipe.h
Revision: 1.4
Committed: 2005-06-27T19:55:48Z (17 years, 5 months ago) by cebix
Content type: text/plain
Branch: MAIN
CVS Tags: VERSION_4_2, HEAD
Changes since 1.3: +1 -1 lines
Log Message:
updated copyright dates

File Contents

# Content
1 /*
2 * CmdPipe.h
3 *
4 * Frodo (C) 1994-1997,2002-2005 Christian Bauer
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21 #ifndef CmdPipe_h
22 #define CmdPipe_h
23
24 extern "C" {
25 #include <stdio.h>
26 #include <sys/types.h>
27 }
28
29 class Pipe {
30
31 protected:
32
33 int fds[2];
34
35 public:
36
37 bool fail;
38
39 Pipe(void);
40 Pipe(int fdin, int fdout) : fail(false) {
41 fds[0] = fdin;
42 fds[1] = fdout;
43 }
44 ~Pipe(void);
45
46 unsigned long ewrite(const void * buf, unsigned long len);
47 unsigned long eread (void * buf, unsigned long len);
48
49 int get_read_fd(void) const {
50 return fds[0];
51 }
52
53 int get_write_fd(void) const {
54 return fds[1];
55 }
56
57 int probe(void) const;
58 };
59
60 class CmdPipe {
61
62 protected:
63
64 Pipe tocmd;
65 Pipe fromcmd;
66
67 int childpid;
68
69 public:
70
71 bool fail;
72
73 CmdPipe(const char * command, const char * arg, int nicediff = 0);
74 ~CmdPipe(void);
75
76 unsigned long ewrite(const void * buf, unsigned long len) {
77 return tocmd.ewrite(buf, len);
78 }
79
80 unsigned long eread (void * buf, unsigned long len) {
81 return fromcmd.eread(buf, len);
82 }
83
84 int get_read_fd(void) const {
85 return fromcmd.get_read_fd();
86 }
87
88 int get_write_fd(void) const {
89 return tocmd.get_write_fd();
90 }
91
92 int probe(void) const {
93 return fromcmd.probe();
94 }
95
96 };
97
98 #endif // CmdPipe_h