initial checkin

1 files changed, 47 insertions, 0 deletions

diff --git a/src/common/db.h b/src/common/db.h
new file mode 100644
index 0000000..ea9acea
--- /dev/null
+++ b/src/common/db.h
@@ -0,0 +1,47 @@
+#ifndef _DB_H_
+#define _DB_H_
+
+#include <stdarg.h>
+
+#define HASH_SIZE (256+27)
+
+#define RED 0
+#define BLACK 1
+
+struct dbn {
+	struct dbn *parent,*left,*right;
+	int color;
+	void *key;
+	void *data;
+};
+
+struct dbt {
+	int (*cmp)(struct dbt*,void*,void*);
+	unsigned int (*hash)(struct dbt*,void*);
+    // which 1 - key,   2 - data,  3 - both
+	void (*release)(struct dbn*,int which);
+	int maxlen;
+	struct dbn *ht[HASH_SIZE];
+};
+
+#define strdb_search(t,k)   db_search((t),(void*)(k))
+#define strdb_insert(t,k,d) db_insert((t),(void*)(k),(void*)(d))
+#define strdb_erase(t,k)    db_erase ((t),(void*)(k))
+#define strdb_foreach       db_foreach
+#define strdb_final         db_final
+#define numdb_search(t,k)   db_search((t),(void*)(k))
+#define numdb_insert(t,k,d) db_insert((t),(void*)(k),(void*)(d))
+#define numdb_erase(t,k)    db_erase ((t),(void*)(k))
+#define numdb_foreach       db_foreach
+#define numdb_final         db_final
+
+struct dbt* strdb_init(int maxlen);
+struct dbt* numdb_init(void);
+void* db_search(struct dbt *table,void* key);
+void* db_search2(struct dbt *table, const char *key); // [MouseJstr]
+struct dbn* db_insert(struct dbt *table,void* key,void* data);
+void* db_erase(struct dbt *table,void* key);
+void db_foreach(struct dbt*,int(*)(void*,void*,va_list),...);
+void db_final(struct dbt*,int(*)(void*,void*,va_list),...);
+
+#endif