---------------------
PatchSet 6514 
Date: 2005/03/17 23:58:55
Author: hno
Branch: lfs-2_5
Tag: (none) 
Log:
Fix race window when original client disconnects until the object is
found not cacheable. Under these conditions use the highest disk reader
offset as the lowest mem reader offset.

Members: 
	src/store_client.c:1.9.6.2.16.6->1.9.6.2.16.7 

Index: squid/src/store_client.c
===================================================================
RCS file: /cvsroot/squid-sf//squid/src/store_client.c,v
retrieving revision 1.9.6.2.16.6
retrieving revision 1.9.6.2.16.7
diff -u -r1.9.6.2.16.6 -r1.9.6.2.16.7
--- squid/src/store_client.c	12 Mar 2005 01:32:10 -0000	1.9.6.2.16.6
+++ squid/src/store_client.c	17 Mar 2005 23:58:55 -0000	1.9.6.2.16.7
@@ -1,6 +1,6 @@
 
 /*
- * $Id: store_client.c,v 1.9.6.2.16.6 2005/03/12 01:32:10 hno Exp $
+ * $Id: store_client.c,v 1.9.6.2.16.7 2005/03/17 23:58:55 hno Exp $
  *
  * DEBUG: section 20    Storage Manager Client-Side Interface
  * AUTHOR: Duane Wessels
@@ -543,6 +543,7 @@
 {
     const MemObject *mem = entry->mem_obj;
     squid_off_t lowest = mem->inmem_hi + 1;
+    squid_off_t highest = -1;
     store_client *sc;
     dlink_node *nx = NULL;
     dlink_node *node;
@@ -552,11 +553,15 @@
 	nx = node->next;
 	if (sc->callback_data == NULL)	/* open slot */
 	    continue;
+	if (sc->copy_offset > highest)
+	    highest = sc->copy_offset;
 	if (mem->swapout.sio != NULL && sc->type != STORE_MEM_CLIENT)
 	    continue;
 	if (sc->copy_offset < lowest)
 	    lowest = sc->copy_offset;
     }
+    if (highest < lowest && highest >= 0)
+	return highest;
     return lowest;
 }