2 * Copyright (C) 1995, Index Data I/S
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.8 1995-05-17 08:42:28 quinn
8 * Transfer auth info to backend. Allow backend to reject init gracefully.
10 * Revision 1.7 1995/05/16 08:51:08 quinn
11 * License, documentation, and memory fixes
13 * Revision 1.6 1995/05/15 11:56:41 quinn
14 * Asynchronous facilities. Restructuring of seshigh code.
16 * Revision 1.5 1995/04/20 15:13:01 quinn
19 * Revision 1.4 1995/04/10 10:23:39 quinn
20 * Some work to add scan and other things.
22 * Revision 1.3 1995/03/30 09:09:27 quinn
23 * Added state-handle and some support for asynchronous activities.
25 * Revision 1.2 1995/03/27 08:34:29 quinn
26 * Added dynamic server functionality.
27 * Released bindings to session.c (is now redundant)
29 * Revision 1.1 1995/03/14 10:28:02 quinn
30 * More work on demo server.
44 typedef struct request
46 int len_refid; /* length of referenceid */
47 char *refid; /* referenceid */
49 REQUEST_IDLE, /* the request is just sitting in the queue */
50 REQUEST_PENDING /* operation pending (b'end processing or network I/O*/
51 /* this list will have more elements when acc/res control is added */
54 Z_APDU *request; /* Current request */
55 ODR_MEM request_mem; /* ODR memory handle for request */
57 int size_response; /* size of buffer */
58 int len_response; /* length of encoded data */
59 char *response; /* encoded data waiting for transmission */
64 typedef struct request_q
74 typedef struct association
76 IOCHAN client_chan; /* event-loop control */
77 COMSTACK client_link; /* communication handle */
78 ODR decode; /* decoding stream */
79 ODR encode; /* encoding stream */
80 ODR print; /* printing stream (for -a) */
81 char *encode_buffer; /* temporary buffer for encoded data */
82 int encoded_len; /* length of encoded data */
83 char *input_buffer; /* input buffer (allocated by comstack) */
84 int input_buffer_len; /* length (size) of buffer */
85 int input_apdu_len; /* length of current incoming APDU */
86 oid_proto proto; /* protocol (PROTO_Z3950/PROTO_SR) */
87 void *backend; /* backend handle */
88 request_q incoming; /* Q of incoming PDUs */
89 request_q outgoing; /* Q of outgoing data buffers (enc. PDUs) */
90 int rejected; /* session rejected */
92 /* session parameters */
93 int preferredMessageSize;
94 int maximumRecordSize;
97 association *create_association(IOCHAN channel, COMSTACK link);
98 void destroy_association(association *h);
99 void ir_session(IOCHAN h, int event);
101 void request_enq(request_q *q, request *r);
102 request *request_head(request_q *q);
103 request *request_deq(request_q *q);
104 void request_initq(request_q *q);
105 request *request_get(void);
106 void request_release(request *r);