From f7fb437044f32ea7e85a114414f32b170ab0ebb0 Mon Sep 17 00:00:00 2001
From: Sebastian Hammer <quinn@indexdata.com>
Date: Thu, 14 Dec 2006 14:58:03 +0000
Subject: [PATCH] Part of the way to blocking functions Fixes bug on timeout
 of sessions

---
 pazpar2.c |   20 +++++++++++++++++---
 pazpar2.h |   10 ++++++++++
 2 files changed, 27 insertions(+), 3 deletions(-)

diff --git a/pazpar2.c b/pazpar2.c
index f953a7d..55dabb2 100644
--- a/pazpar2.c
+++ b/pazpar2.c
@@ -1,4 +1,4 @@
-/* $Id: pazpar2.c,v 1.12 2006-12-12 02:36:24 quinn Exp $ */;
+/* $Id: pazpar2.c,v 1.13 2006-12-14 14:58:03 quinn Exp $ */;
 
 #include <stdlib.h>
 #include <stdio.h>
@@ -736,12 +736,14 @@ static void handler(IOCHAN i, int event)
 
 	if (len < 0)
 	{
-            client_fatal(cl);
+            yaz_log(YLOG_WARN|YLOG_ERRNO, "Error reading from Z server");
+            connection_destroy(co);
 	    return;
 	}
         else if (len == 0)
 	{
-            client_fatal(cl);
+            yaz_log(YLOG_WARN, "EOF reading from Z server");
+            connection_destroy(co);
 	    return;
 	}
 	else if (len > 1) // We discard input if we have no connection
@@ -1113,6 +1115,12 @@ void client_destroy(struct client *c)
     client_freelist = c;
 }
 
+void session_set_watch(struct session *s, int what, session_watchfun fun, void *data)
+{
+    s->watchlist[what].fun = fun;
+    s->watchlist[what].data = data;
+}
+
 // This should be extended with parameters to control selection criteria
 // Associates a set of clients with a session;
 int select_targets(struct session *se)
@@ -1180,6 +1188,7 @@ void destroy_session(struct session *s)
 
 struct session *new_session() 
 {
+    int i;
     struct session *session = xmalloc(sizeof(*session));
 
     yaz_log(YLOG_DEBUG, "New pazpar2 session");
@@ -1193,6 +1202,11 @@ struct session *new_session()
     session->query[0] = '\0';
     session->nmem = nmem_create();
     session->wrbuf = wrbuf_alloc();
+    for (i = 0; i <= SESSION_WATCH_MAX; i++)
+    {
+        session->watchlist[i].data = 0;
+        session->watchlist[i].fun = 0;
+    }
 
     select_targets(session);
 
diff --git a/pazpar2.h b/pazpar2.h
index a14d691..8de4b91 100644
--- a/pazpar2.h
+++ b/pazpar2.h
@@ -89,6 +89,11 @@ struct client {
     struct client *next;
 };
 
+#define SESSION_WATCH_RECORDS   0
+#define SESSION_WATCH_MAX       0
+
+typedef void (*session_watchfun)(void *data);
+
 // End-user session
 struct session {
     struct client *clients;
@@ -99,6 +104,10 @@ struct session {
     struct termlist *termlist;
     struct relevance *relevance;
     struct reclist *reclist;
+    struct {
+        void *data;
+        session_watchfun fun;
+    } watchlist[SESSION_WATCH_MAX + 1];
     int total_hits;
     int total_records;
 };
@@ -150,6 +159,7 @@ void statistics(struct session *s, struct statistics *stat);
 char *search(struct session *s, char *query);
 struct record **show(struct session *s, int start, int *num, int *total, int *sumhits);
 struct termlist_score **termlist(struct session *s, int *num);
+void session_set_watch(struct session *s, int what, session_watchfun fun, void *data);
 
 #endif
 
-- 
1.7.10.4