OpenDNSSEC-signer  2.1.5
tcpset.h
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1 /*
2  * Copyright (c) 2011 NLNet Labs. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
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7  * 1. Redistributions of source code must retain the above copyright
8  * notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  * notice, this list of conditions and the following disclaimer in the
11  * documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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17  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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19  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
21  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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26 
32 #ifndef WIRE_TCPSET_H
33 #define WIRE_TCPSET_H
34 
35 #include "config.h"
36 #include <stdint.h>
37 
40 
41 #include "status.h"
42 #include "wire/buffer.h"
43 #include "wire/xfrd.h"
44 
45 #define TCPSET_MAX 50
46 
52  int fd;
53  /* how many bytes have been read/written - total, incl. tcp length bytes */
54  uint32_t total_bytes;
55  /* msg len bytes */
56  uint16_t msglen;
57  /* packet buffer of connection */
59  /* state: reading or writing */
60  unsigned is_reading : 1;
61 };
62 
63 /*
64  * Set of tcp connections.
65  *
66  */
71  size_t tcp_count;
72 };
73 
81 
89 
95 void tcp_conn_ready(tcp_conn_type* tcp);
96 
97 /*
98  * Read from a tcp connection.
99  * On first call, make sure total_bytes = 0, msglen=0, buffer clear,
100  * and the packet and fd need to be set.
101  * \param[in] tcp tcp connection
102  * \return int -1 on error,
103  * 0 on short read,
104  * 1 on completed read.
105  *
106  */
107 int tcp_conn_read(tcp_conn_type* tcp);
108 
109 /*
110  * Write to a tcp connection.
111  * On first call, make sure total_bytes=0, msglen=limit, buffer filled,
112  * and the packet and fd need to be set.
113  * \param[in] tcp tcp connection
114  * \return int -1 on error,
115  * 0 on short write,
116  * 1 on completed write.
117  *
118  */
119 int tcp_conn_write(tcp_conn_type* tcp);
120 
127 void tcp_set_cleanup(tcp_set_type* set);
128 
129 #endif /* WIRE_TCPSET_H */
tcp_set_struct::tcp_conn
tcp_conn_type * tcp_conn[TCPSET_MAX]
Definition: tcpset.h:68
tcp_conn_struct::total_bytes
uint32_t total_bytes
Definition: tcpset.h:54
tcp_conn_struct::packet
buffer_type * packet
Definition: tcpset.h:58
tcp_conn_struct::fd
int fd
Definition: tcpset.h:52
tcp_conn_struct::is_reading
unsigned is_reading
Definition: tcpset.h:60
tcp_conn_create
tcp_conn_type * tcp_conn_create(void)
Definition: tcpset.c:45
tcp_conn_write
int tcp_conn_write(tcp_conn_type *tcp)
Definition: tcpset.c:177
tcp_set_struct::tcp_waiting_first
xfrd_type * tcp_waiting_first
Definition: tcpset.h:69
TCPSET_MAX
#define TCPSET_MAX
Definition: tcpset.h:45
buffer_struct
Definition: buffer.h:112
tcp_set_create
tcp_set_type * tcp_set_create(void)
Definition: tcpset.c:67
tcp_conn_read
int tcp_conn_read(tcp_conn_type *tcp)
Definition: tcpset.c:103
buffer.h
xfrd.h
xfrd_struct
Definition: xfrd.h:93
tcp_conn_ready
void tcp_conn_ready(tcp_conn_type *tcp)
Definition: tcpset.c:89
tcp_conn_struct
Definition: tcpset.h:51
tcp_set_cleanup
void tcp_set_cleanup(tcp_set_type *set)
Definition: tcpset.c:242
tcp_set_struct::tcp_count
size_t tcp_count
Definition: tcpset.h:71
tcp_set_struct::tcp_waiting_last
xfrd_type * tcp_waiting_last
Definition: tcpset.h:70
tcp_set_struct
Definition: tcpset.h:67
tcp_conn_struct::msglen
uint16_t msglen
Definition: tcpset.h:56