Changeset 36 for pjproject/main/pjlib/include/pj++/hash.hpp

Timestamp:

Nov 9, 2005 3:37:19 PM (19 years ago)

Author:

bennylp

Message:

Rework pjlib++

File:

• pjproject/main/pjlib/include/pj++/hash.hpp (modified) (3 diffs)

pjproject/main/pjlib/include/pj++/hash.hpp

@@ -1 +1 @@
 /* $Id$
- *
  */
 #ifndef __PJPP_HASH_H__
@@ -6 +5 @@
 
 #include <pj++/types.hpp>
+#include <pj++/pool.hpp>
 #include <pj/hash.h>
 
-class PJ_Hash_Table
+//
+// Hash table.
+//
+class Pj_Hash_Table : public Pj_Object
 {
 public:
+    //
+    // Hash table iterator.
+    //
     class iterator
     {
     public:
-        iterator() {}
-        explicit iterator(pj_hash_table_t *h, pj_hash_iterator_t *i) : ht_(h), it_(i) {}
-        iterator(const iterator &rhs) : ht_(rhs.ht_), it_(rhs.it_) {}
-        void operator++() { it_ = pj_hash_next(ht_, it_); }
-        bool operator==(const iterator &rhs) { return ht_ == rhs.ht_ && it_ == rhs.it_; }
-        iterator & operator=(const iterator &rhs) { ht_=rhs.ht_; it_=rhs.it_; return *this; }
+        iterator() 
+        {
+        }
+        explicit iterator(pj_hash_table_t *h, pj_hash_iterator_t *i) 
+        : ht_(h), it_(i) 
+        {
+        }
+        iterator(const iterator &rhs) 
+        : ht_(rhs.ht_), it_(rhs.it_) 
+        {
+        }
+        void operator++() 
+        { 
+            it_ = pj_hash_next(ht_, it_); 
+        }
+        bool operator==(const iterator &rhs) 
+        { 
+            return ht_ == rhs.ht_ && it_ == rhs.it_; 
+        }
+        iterator & operator=(const iterator &rhs) 
+        { 
+            ht_=rhs.ht_; it_=rhs.it_; 
+            return *this; 
+        }
     private:
         pj_hash_table_t *ht_;
@@ -25 +49 @@
         pj_hash_iterator_t *it_;
 
-        friend class PJ_Hash_Table;
+        friend class Pj_Hash_Table;
     };
 
-    static PJ_Hash_Table *create(PJ_Pool *pool, unsigned size)
+    //
+    // Construct hash table.
+    //
+    Pj_Hash_Table(Pj_Pool *pool, unsigned size)
     {
-        return (PJ_Hash_Table*) pj_hash_create(pool->pool_(), size);
+        table_ = pj_hash_create(pool->pool_(), size);
     }
 
-    static pj_uint32_t calc(pj_uint32_t initial_hval, const void *key, unsigned keylen)
+    //
+    // Destroy hash table.
+    //
+    ~Pj_Hash_Table()
+    {
+    }
+
+    //
+    // Calculate hash value.
+    //
+    static pj_uint32_t calc( pj_uint32_t initial_hval, 
+                             const void *key, 
+                             unsigned keylen = PJ_HASH_KEY_STRING)
     {
         return pj_hash_calc(initial_hval, key, keylen);
     }
 
-    pj_hash_table_t *hash_table_()
+    //
+    // Return pjlib compatible hash table object.
+    //
+    pj_hash_table_t *pj_hash_table_t_()
     {
-        return (pj_hash_table_t*)this;
+        return table_;
     }
 
-    void *get(const void *key, unsigned keylen)
+    //
+    // Get the value associated with the specified key.
+    //
+    void *get(const void *key, unsigned keylen = PJ_HASH_KEY_STRING)
     {
-        return pj_hash_get(this->hash_table_(), key, keylen);
+        return pj_hash_get(table_, key, keylen);
     }
 
-    void set(PJ_Pool *pool, const void *key, unsigned keylen, void *value)
+    //
+    // Associate a value with a key.
+    // Set the value to NULL to delete the key from the hash table.
+    //
+    void set(Pj_Pool *pool, 
+             const void *key, 
+             void *value,
+             unsigned keylen = PJ_HASH_KEY_STRING)
     {
-        pj_hash_set(pool->pool_(), this->hash_table_(), key, keylen, value);
+        pj_hash_set(pool->pool_(), table_, key, keylen, value);
     }
 
+    //
+    // Get number of items in the hash table.
+    //
     unsigned count()
     {
-        return pj_hash_count(this->hash_table_());
+        return pj_hash_count(table_);
     }
 
+    //
+    // Iterate hash table.
+    //
     iterator begin()
     {
-        iterator it(this->hash_table_(), NULL);
-        it.it_ = pj_hash_first(this->hash_table_(), &it.it_val_);
+        iterator it(table_, NULL);
+        it.it_ = pj_hash_first(table_, &it.it_val_);
         return it;
     }
 
+    //
+    // End of items.
+    //
     iterator end()
     {
-        return iterator(this->hash_table_(), NULL);
+        return iterator(table_, NULL);
     }
+
+private:
+    pj_hash_table_t *table_;
 };
 
+
 #endif  /* __PJPP_HASH_H__ */
+