Some work on wtp and ktv config files

FossilOrigin-Name: 3747732055809fd587f96cff65c389a0878a09a197947c1e68a76f605bdb44a0

src/cw/ktv.h

@@ -0,0 +1,80 @@
+#ifndef __KVT_H
+#define __KVT_H
+
+#include <stdint.h>
+#include <stdio.h>
+
+#include "mavl.h"
+
+#define CW_KTV_MAX_KEY_LEN 1024
+
+struct cw_KTV {
+	char *key;
+	const struct cw_Type *type;
+	union {
+		uint32_t dword;
+		uint16_t word;
+		uint8_t byte;
+		void *ptr;
+	} val;
+};
+typedef struct cw_KTV cw_KTV_t;
+
+
+struct cw_Type {
+	/** A human readable name for this type */
+	const char *name;
+
+	/** A pointer to a function to delete elements of this type */
+	void (*del) (struct cw_KTV * data);
+
+	/** A method to put this object to a buffer */
+	int (*put) (const struct cw_KTV * data, uint8_t * dst);
+
+	/** The get method */
+	struct cw_KTV *(*get) (struct cw_KTV * data, const uint8_t * src, int len);
+
+	/** A pointer to a function to convert elements of this type to a string.
+	    This function is mainly used to store elements to an SQL database
+	    or to json strings */
+	int (*to_str) (const struct cw_KTV * data, char *dst, int max_len);
+
+	/** Cereate an item of this type from a string, which was previously
+	    created by the #del function. */
+	struct cw_KTV *(*from_str) (struct cw_KTV * data, const char *src);
+
+	/*
+	   int (*def)(void *, void *);
+	 */
+};
+
+extern const struct cw_Type cw_type_byte;
+extern const struct cw_Type cw_type_word;
+extern const struct cw_Type cw_type_dword;
+extern const struct cw_Type cw_type_bstr16;
+
+#define CW_TYPE_BYTE (&cw_type_byte)
+#define CW_TYPE_WORD (&cw_type_word)
+#define CW_TYPE_DWORD (&cw_type_dword)
+#define CW_TYPE_BSTR16 (&cw_type_bstr16)
+
+/*
+void cw_kvstore_mavl_delete(const void *data);
+ */
+const char *cw_ktv_add(mavl_t kvstore, const char *key, const struct cw_Type *type,
+			   const uint8_t * data, int len);
+
+int cw_ktv_mavlcmp(const void *v1, const void *v2);
+int cw_ktv_mavlcmp_type_by_name(const void *v1,const void *v2);
+
+void cw_ktv_mavldel(void *data);
+
+#define cw_ktv_create()\
+	mavl_create(cw_ktv_mavlcmp, cw_ktv_mavldel, sizeof(cw_KTV_t))
+	
+#define cw_ktv_create_types_tree()\
+	mavl_create(cw_ktv_mavlcmp_type_by_name,NULL,sizeof(struct cw_Type *))
+
+int cw_ktv_read_line (FILE *f, char * key, char * type, char *val);
+
+#endif	/* __KVT_H */