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