Initial import of the CDE 2.1.30 sources from the Open Group.

cde/programs/dtmail/include/DtMail/HashTable.hh

@@ -0,0 +1,83 @@
+/*
+ *+SNOTICE
+ *
+ *
+ *	$XConsortium: HashTable.hh /main/4 1996/04/21 19:45:12 drk $
+ *
+ *	RESTRICTED CONFIDENTIAL INFORMATION:
+ *	
+ *	The information in this document is subject to special
+ *	restrictions in a confidential disclosure agreement bertween
+ *	HP, IBM, Sun, USL, SCO and Univel.  Do not distribute this
+ *	document outside HP, IBM, Sun, USL, SCO, or Univel wihtout
+ *	Sun's specific written approval.  This documment and all copies
+ *	and derivative works thereof must be returned or destroyed at
+ *	Sun's request.
+ *
+ *	Copyright 1993 Sun Microsystems, Inc.  All rights reserved.
+ *
+ *+ENOTICE
+ */
+
+#ifndef _HASHTABLE_HH
+#define _HASHTABLE_HH
+
+#include <DtMail/ObjectKey.hh>
+
+class HashTableImpl : public DtCPlusPlusAllocator {
+  public:
+    HashTableImpl(int table_size);
+    virtual ~HashTableImpl(void);
+
+    virtual void * lookup(ObjectKey &);
+    virtual void set(ObjectKey & key, void * value);
+    virtual void * remove(ObjectKey & key);
+
+// HP can not support this construct.
+// UXP/DS can not support this construct either.
+//
+#if !defined(HPUX) && !defined(__uxp__)
+//
+#define HASHTABLE_HASFOREACH
+
+    typedef int (*HashImplIterator)(ObjectKey &, void * value, void * client_data);
+    virtual void forEach(HashImplIterator, void * client_data);
+
+#endif
+
+  protected:
+    struct HashEntry : public DtCPlusPlusAllocator {
+	ObjectKey *	key;
+	void *		value;
+	HashEntry	*next;
+    };
+
+    HashEntry *		_hash_table;
+    int			_table_size;
+};
+
+template <class Object>
+class HashTable : public DtCPlusPlusAllocator {
+  public:
+    HashTable(int table_size) : _table(table_size) { }
+
+    Object lookup(ObjectKey & key) { return( (Object)((long)_table.lookup(key)) ); }
+
+    void set(ObjectKey & key, Object obj) {
+	_table.set(key, (void *)obj);
+    }
+
+    Object remove(ObjectKey & key) { return( (Object)((long)_table.remove(key)) ); }
+
+#if !defined(HPUX) && !defined(__uxp__)
+    typedef int (*HashIterator)(ObjectKey &, Object, void * client_data);
+    void forEach(HashTableImpl::HashImplIterator iterator, void * client_data) {
+	_table.forEach((HashTableImpl::HashImplIterator)iterator, client_data);
+    }
+#endif
+
+  protected:
+    HashTableImpl	_table;
+};
+
+#endif