2 * Copyright (C) 1995, Index Data I/S
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.12 1997-09-01 08:53:01 adam
8 * New windows NT/95 port using MSV5.0. The test server 'ztest' was
9 * moved a separate directory. MSV5.0 project server.dsp created.
10 * As an option, the server can now operate as an NT service.
12 * Revision 1.11 1995/11/08 17:41:40 quinn
15 * Revision 1.10 1995/08/29 11:18:01 quinn
16 * Added code to receive close
18 * Revision 1.9 1995/06/16 10:31:38 quinn
19 * Added session timeout.
21 * Revision 1.8 1995/05/17 08:42:28 quinn
22 * Transfer auth info to backend. Allow backend to reject init gracefully.
24 * Revision 1.7 1995/05/16 08:51:08 quinn
25 * License, documentation, and memory fixes
27 * Revision 1.6 1995/05/15 11:56:41 quinn
28 * Asynchronous facilities. Restructuring of seshigh code.
30 * Revision 1.5 1995/04/20 15:13:01 quinn
33 * Revision 1.4 1995/04/10 10:23:39 quinn
34 * Some work to add scan and other things.
36 * Revision 1.3 1995/03/30 09:09:27 quinn
37 * Added state-handle and some support for asynchronous activities.
39 * Revision 1.2 1995/03/27 08:34:29 quinn
40 * Added dynamic server functionality.
41 * Released bindings to session.c (is now redundant)
43 * Revision 1.1 1995/03/14 10:28:02 quinn
44 * More work on demo server.
56 #include <sys/types.h>
59 typedef struct request
61 int len_refid; /* length of referenceid */
62 char *refid; /* referenceid */
64 REQUEST_IDLE, /* the request is just sitting in the queue */
65 REQUEST_PENDING /* operation pending (b'end processing or network I/O*/
66 /* this list will have more elements when acc/res control is added */
69 Z_APDU *request; /* Current request */
70 NMEM request_mem; /* memory handle for request */
72 int size_response; /* size of buffer */
73 int len_response; /* length of encoded data */
74 char *response; /* encoded data waiting for transmission */
80 typedef struct request_q
91 typedef struct association
93 IOCHAN client_chan; /* event-loop control */
94 COMSTACK client_link; /* communication handle */
95 ODR decode; /* decoding stream */
96 ODR encode; /* encoding stream */
97 ODR print; /* printing stream (for -a) */
98 char *encode_buffer; /* temporary buffer for encoded data */
99 int encoded_len; /* length of encoded data */
100 char *input_buffer; /* input buffer (allocated by comstack) */
101 int input_buffer_len; /* length (size) of buffer */
102 int input_apdu_len; /* length of current incoming APDU */
103 oid_proto proto; /* protocol (PROTO_Z3950/PROTO_SR) */
104 void *backend; /* backend handle */
105 request_q incoming; /* Q of incoming PDUs */
106 request_q outgoing; /* Q of outgoing data buffers (enc. PDUs) */
109 ASSOC_NEW, /* not initialized yet */
110 ASSOC_UP, /* normal operation */
111 ASSOC_DEAD /* dead. Close if input arrives */
114 /* session parameters */
115 int preferredMessageSize;
116 int maximumRecordSize;
117 int version; /* highest version-bit set (2 or 3) */
120 association *create_association(IOCHAN channel, COMSTACK link);
121 void destroy_association(association *h);
122 void ir_session(IOCHAN h, int event);
124 void request_enq(request_q *q, request *r);
125 request *request_head(request_q *q);
126 request *request_deq(request_q *q);
127 void request_initq(request_q *q);
128 void request_delq(request_q *q);
129 request *request_get(request_q *q);
130 void request_release(request *r);