monitors.mco

eXtremeDB数据库在Linux平台下的使用源码。内含多个示例程序

/*
 */

#define int1	  signed<1>
#define int2	  signed<2>
#define int4	  signed<4>
#define uint8   unsigned<8>
#define uint4   unsigned<4>
#define uint2   unsigned<2>
#define uint1   unsigned<1>

declare database monitorDB;
declare oid ID[10000];

struct Svalue {
	time	 tm;
	uint4	 u4;
        char<36> bytes;
	
};

struct ID
{
	time  tm;
        uint4 cnt;
	uint4 seq;
};

/*
 * gets updated every s1 microseconds
 * the new sensor1 measurement is is written in, and the oldest
 * measurement is deleted.
 * insert new record, update oldest with another
 * new record & delete oldest record
 */

class Sensor1 {

	time            tm;
	uint4 value1;
	uint4 value2;
	uint4 value3;
	uint4 value4;

	vector <Svalue> valuev;

	tree <tm> IS1tm;
	list;
};