File:
[ELWIX - Embedded LightWeight unIX -] /
libelwix /
inc /
elwix /
apio.h
Revision
1.6:
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Fri Jun 19 23:07:20 2020 UTC (4 years, 2 months ago) by
misho
Branches:
MAIN
CVS tags:
elwix6_1,
elwix5_9,
elwix5_8,
elwix5_7,
elwix5_6,
elwix5_5,
elwix5_4,
elwix5_3,
elwix5_2,
elwix5_12,
elwix5_11,
elwix5_10,
elwix5_1,
elwix5_0,
elwix4_26,
HEAD,
ELWIX6_0,
ELWIX5_9,
ELWIX5_8,
ELWIX5_7,
ELWIX5_6,
ELWIX5_5,
ELWIX5_4,
ELWIX5_3,
ELWIX5_2,
ELWIX5_11,
ELWIX5_10,
ELWIX5_1,
ELWIX5_0,
ELWIX4_26,
ELWIX4_25
ver 4.25
1: /*************************************************************************
2: * (C) 2013 AITNET ltd - Sofia/Bulgaria - <misho@aitnet.org>
3: * by Michael Pounov <misho@elwix.org>
4: *
5: * $Author: misho $
6: * $Id: apio.h,v 1.6 2020/06/19 23:07:20 misho Exp $
7: *
8: **************************************************************************
9: The ELWIX and AITNET software is distributed under the following
10: terms:
11:
12: All of the documentation and software included in the ELWIX and AITNET
13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
14:
15: Copyright 2004 - 2020
16: by Michael Pounov <misho@elwix.org>. All rights reserved.
17:
18: Redistribution and use in source and binary forms, with or without
19: modification, are permitted provided that the following conditions
20: are met:
21: 1. Redistributions of source code must retain the above copyright
22: notice, this list of conditions and the following disclaimer.
23: 2. Redistributions in binary form must reproduce the above copyright
24: notice, this list of conditions and the following disclaimer in the
25: documentation and/or other materials provided with the distribution.
26: 3. All advertising materials mentioning features or use of this software
27: must display the following acknowledgement:
28: This product includes software developed by Michael Pounov <misho@elwix.org>
29: ELWIX - Embedded LightWeight unIX and its contributors.
30: 4. Neither the name of AITNET nor the names of its contributors
31: may be used to endorse or promote products derived from this software
32: without specific prior written permission.
33:
34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
37: ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
44: SUCH DAMAGE.
45: */
46: #ifndef __APIO_H
47: #define __APIO_H
48:
49:
50: struct tagPIOPID {
51: union {
52: FILE *fp;
53: int fd;
54: } f;
55: pid_t pid;
56: int stat;
57:
58: SLIST_ENTRY(tagPIOPID) next;
59: };
60: typedef SLIST_HEAD(, tagPIOPID) pio_pid_t;
61:
62:
63: extern pio_pid_t pio_pidlist;
64:
65:
66: /*
67: * e_popen() - ELWIX replacement of standard popen
68: *
69: * @command = command
70: * @type = type
71: * @ppid = return pid of child program
72: * If value of *ppid is -1 when invoke routine then child will be session leader
73: * return: NULL error or !=NULL open program
74: */
75: #ifdef POPEN_STREAM
76: FILE *e_popen(const char *command, const char *type, pid_t *ppid);
77: #else
78: int e_popen(const char *command, const char *type, pid_t *ppid);
79: #endif
80: /*
81: * e_popen2() - ELWIX replacement of standard popen with post close of chosen handles
82: *
83: * @command = command
84: * @type = type
85: * @ppid = return pid of child program
86: * If value of *ppid is -1 when invoke routine then child will be session leader
87: * @fds = file descriptor array for close when fork
88: * @fdslen = fds number of descriptors
89: * return: NULL error or !=NULL open program
90: */
91: #ifdef POPEN_STREAM
92: FILE *e_popen2(const char *command, const char *type, pid_t *ppid, int *fds, size_t fdslen);
93: #else
94: int e_popen2(const char *command, const char *type, pid_t *ppid, int *fds, size_t fdslen);
95: #endif
96: /*
97: * e_pclose() - ELWIX replacement of standard pclose
98: *
99: * @iop = popen handle
100: * return: -1 error or !=-1 pid status
101: */
102: #ifdef POPEN_STREAM
103: int e_pclose(FILE *iop);
104: #else
105: int e_pclose(int iop);
106: #endif
107:
108: /*
109: * pio_pgetpid() - Get tagPIOPID structure from file handle
110: *
111: * @iop = popen handle
112: * return: NULL error or !=NULL tagPIOPID structure
113: */
114: #ifdef POPEN_STREAM
115: struct tagPIOPID *pio_pgetpid(FILE *iop);
116: #else
117: struct tagPIOPID *pio_pgetpid(int iop);
118: #endif
119: /*
120: * pio_pchkpid() - Check exit status of child programs
121: *
122: * @pids = return tagPIOPID structures of exited programs,
123: * if !=NULL must call array_Destroy()
124: * return: -1 error or >-1 exited programs
125: */
126: int pio_pchkpid(array_t ** __restrict pids);
127:
128:
129: #endif
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