X-Git-Url: http://git.indexdata.com/?p=yaz-moved-to-github.git;a=blobdiff_plain;f=server%2Fsession.h;h=7c13234bbd99f3fbd3fff4687a3fc046966f24d0;hp=0ab672a8595a5ade49a3c3c22dd69841fd97aa57;hb=adfa93d3033913d04c134941f7035f00fd2f080b;hpb=79b35f162af8212091fab0ca10b458c262685eaa

diff --git a/server/session.h b/server/session.h
index 0ab672a..7c13234 100644
--- a/server/session.h
+++ b/server/session.h
@@ -1,10 +1,55 @@
 /*
- * Copyright (C) 1994, Index Data I/S 
- * All rights reserved.
+ * Copyright (C) 1995-1998, Index Data I/S 
+ * See the file LICENSE for details.
  * Sebastian Hammer, Adam Dickmeiss
  *
  * $Log: session.h,v $
- * Revision 1.4  1995-04-10 10:23:39  quinn
+ * Revision 1.18  1998-08-03 10:23:57  adam
+ * Fixed bug regarding Options for Sort.
+ *
+ * Revision 1.17  1998/07/20 12:38:43  adam
+ * Implemented delete result set service to server API.
+ *
+ * Revision 1.16  1998/03/31 11:07:45  adam
+ * Furhter work on UNIverse resource report.
+ * Added Extended Services handling in frontend server.
+ *
+ * Revision 1.15  1998/02/11 11:53:36  adam
+ * Changed code so that it compiles as C++.
+ *
+ * Revision 1.14  1998/02/10 11:03:57  adam
+ * Added support for extended handlers in backend server interface.
+ *
+ * Revision 1.13  1998/01/29 13:30:23  adam
+ * Better event handle system for NT/Unix.
+ *
+ * Revision 1.12  1997/09/01 08:53:01  adam
+ * New windows NT/95 port using MSV5.0. The test server 'ztest' was
+ * moved a separate directory. MSV5.0 project server.dsp created.
+ * As an option, the server can now operate as an NT service.
+ *
+ * Revision 1.11  1995/11/08 17:41:40  quinn
+ * Smallish.
+ *
+ * Revision 1.10  1995/08/29  11:18:01  quinn
+ * Added code to receive close
+ *
+ * Revision 1.9  1995/06/16  10:31:38  quinn
+ * Added session timeout.
+ *
+ * Revision 1.8  1995/05/17  08:42:28  quinn
+ * Transfer auth info to backend. Allow backend to reject init gracefully.
+ *
+ * Revision 1.7  1995/05/16  08:51:08  quinn
+ * License, documentation, and memory fixes
+ *
+ * Revision 1.6  1995/05/15  11:56:41  quinn
+ * Asynchronous facilities. Restructuring of seshigh code.
+ *
+ * Revision 1.5  1995/04/20  15:13:01  quinn
+ * Cosmetic
+ *
+ * Revision 1.4  1995/04/10  10:23:39  quinn
  * Some work to add scan and other things.
  *
  * Revision 1.3  1995/03/30  09:09:27  quinn
@@ -26,33 +71,93 @@
 #include <comstack.h>
 #include <odr.h>
 #include <oid.h>
+#include <proto.h>
+#include <sys/types.h>
+#include "eventl.h"
+
+typedef enum {
+   	REQUEST_IDLE,    /* the request is just sitting in the queue */
+	REQUEST_PENDING  /* operation pending (b'end processing or network I/O*/
+	/* this list will have more elements when acc/res control is added */
+} request_state;
+
+typedef struct request
+{
+    int len_refid;          /* length of referenceid */
+    char *refid;            /* referenceid */
+    request_state state;
+
+    Z_APDU *request;        /* Current request */
+    NMEM request_mem;    /* memory handle for request */
+
+    int size_response;     /* size of buffer */
+    int len_response;      /* length of encoded data */
+    char *response;        /* encoded data waiting for transmission */
+
+    void *clientData;
+    struct request *next;
+    struct request_q *q; 
+} request;
+
+typedef struct request_q
+{
+    request *head;
+    request *tail;
+    request *list;
+    int num;
+} request_q;
+
+/*
+ * association state.
+ */
+typedef enum
+{
+    ASSOC_NEW,                /* not initialized yet */
+    ASSOC_UP,                 /* normal operation */
+    ASSOC_DEAD                /* dead. Close if input arrives */
+} association_state;
 
 typedef struct association
 {
-    /* comms-related handles */
-    IOCHAN client_chan;
-    COMSTACK client_link;
-    ODR decode;
-    ODR encode;
-    ODR print;
-    char *encode_buffer;
-    int encoded_len;
-    char *input_buffer;
-    int input_buffer_len;
-    int input_apdu_len;
-    int state;
-    oid_proto proto;
-    void *backend;
-#define ASSOC_UNINIT       0
-#define ASSOC_IDLE         1
+    IOCHAN client_chan;           /* event-loop control */
+    COMSTACK client_link;         /* communication handle */
+    ODR decode;                   /* decoding stream */
+    ODR encode;                   /* encoding stream */
+    ODR print;                    /* printing stream (for -a) */
+    char *encode_buffer;          /* temporary buffer for encoded data */
+    int encoded_len;              /* length of encoded data */
+    char *input_buffer;           /* input buffer (allocated by comstack) */
+    int input_buffer_len;         /* length (size) of buffer */
+    int input_apdu_len;           /* length of current incoming APDU */
+    oid_proto proto;              /* protocol (PROTO_Z3950/PROTO_SR) */
+    void *backend;                /* backend handle */
+    request_q incoming;           /* Q of incoming PDUs */
+    request_q outgoing;           /* Q of outgoing data buffers (enc. PDUs) */
+    association_state state;
 
     /* session parameters */
     int preferredMessageSize;
     int maximumRecordSize;
+    int version;                  /* highest version-bit set (2 or 3) */
+
+    int (*bend_sort) ();
+    int (*bend_search) ();
+    int (*bend_present) ();
+    int (*bend_esrequest) ();
+    int (*bend_delete) ();
 } association;
 
 association *create_association(IOCHAN channel, COMSTACK link);
 void destroy_association(association *h);
 void ir_session(IOCHAN h, int event);
 
+void request_enq(request_q *q, request *r);
+request *request_head(request_q *q);
+request *request_deq(request_q *q);
+request *request_deq_x(request_q *q, request *r);
+void request_initq(request_q *q);
+void request_delq(request_q *q);
+request *request_get(request_q *q);
+void request_release(request *r);
+
 #endif