mal_properties.h

一个内存数据库的源代码这是服务器端还有客户端

#ifndef _MAL_PROPERTIES_
#define _MAL_PROPERTIES_
#include "mal.h"
#include "mal_namespace.h"

#define MAXPROPLIST 3

typedef struct PROPrecord {
	str nme;
	str operator;
	ValRecord val;
	struct PROPrecord *nxt;
} *Property;

typedef struct PROPSET {
	int refcount;
	int maxlist;
	Property prop[MAXPROPLIST];
} *PropertySet;

mal_export PropertySet newPropertySet(void);
mal_export void freePropertySet(PropertySet ps);
mal_export PropertySet cpyPropertySet(PropertySet old);
mal_export Property cpyProperty(PropertySet * target, Property src);
mal_export Property fndProperty(PropertySet ps, str nme);
mal_export Property fndPropertyIndexed(PropertySet ps, int first, int last, str nme);
mal_export Property setProperty(PropertySet ps, str nme, str op, int tpe, ptr val);
mal_export ptr getPropertyValue(PropertySet ps, str nme);
mal_export int getPropertyType(PropertySet ps, str nme);
mal_export str propertySet2str(PropertySet ps);
mal_export int isPropertyDefined(PropertySet ps, str nme);

#define getProps(M,Y) M->var[Y]->props
#define fndArgProperty(M,P,I,NME) fndProperty(getProps(M,getArg(P,I)),NME)
#define setArgProperty(M,P,I,NME,OP,T,V) if(getProps(M,getArg(P,I))== 0) \
		getProps(M,getArg(P,I))= newPropertySet();\
		setProperty(getProps(M,getArg(P,I)),NME,OP,T,V)

#endif