installed

src/ca/caServerID.h

@@ -0,0 +1,88 @@
+
+/*  $Id$
+ *
+ *                    L O S  A L A M O S
+ *              Los Alamos National Laboratory
+ *               Los Alamos, New Mexico 87545
+ *
+ *  Copyright, 1986, The Regents of the University of California.
+ *
+ *  Author: Jeff Hill
+ */
+
+#ifndef caServerIDh
+#define caServerIDh
+
+#include "osiSock.h"
+#include "resourceLib.h"
+#include "caProto.h"
+
+class caServerID {
+public:
+    caServerID ( const struct sockaddr_in & addrIn, unsigned priority );
+    bool operator == ( const caServerID & ) const;
+    resTableIndex hash () const;
+    static unsigned maxIndexBitWidth ();
+    static unsigned minIndexBitWidth ();
+    osiSockAddr address () const;
+private:
+    struct sockaddr_in addr;
+    ca_uint8_t priority;
+};
+
+// start with a very small server table to speed
+// up the flush traverse for the frequent case -
+// a small numbers of servers
+static const unsigned caServerMinIndexBitWidth = 2u;
+static const unsigned caServerMaxIndexBitWidth = 32u;
+
+inline caServerID::caServerID ( 
+    const struct sockaddr_in & addrIn, unsigned priorityIn ) :
+    addr ( addrIn ), priority ( priorityIn )
+{
+    assert ( priorityIn <= 0xff );
+}
+
+inline bool caServerID::operator == ( const caServerID & rhs ) const
+{
+    if ( this->addr.sin_addr.s_addr == rhs.addr.sin_addr.s_addr ) {
+        if ( this->addr.sin_port == rhs.addr.sin_port ) {
+            if ( this->priority == rhs.priority ) {
+                return true;
+            }
+        }
+    }
+    return false;
+}
+
+inline resTableIndex caServerID::hash () const
+{
+    unsigned index;
+    index = this->addr.sin_addr.s_addr;
+    index ^= this->addr.sin_port;
+    index ^= this->addr.sin_port >> 8u;
+    index ^= this->priority;
+    return integerHash( caServerMinIndexBitWidth, 
+        caServerMaxIndexBitWidth, index );
+}
+
+inline unsigned caServerID::maxIndexBitWidth ()
+{
+    return caServerMaxIndexBitWidth;
+}
+
+inline unsigned caServerID::minIndexBitWidth ()
+{
+    return caServerMinIndexBitWidth;
+}
+
+inline osiSockAddr caServerID::address () const
+{
+    osiSockAddr tmp;
+    tmp.ia = this->addr;
+    return tmp;
+}
+
+#endif // ifdef caServerID
+
+