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#ifndef EXPEXPRESSION_H
#define EXPEXPRESSION_H
#include "disman/expr/exp_enum.h"
/*
* Flags relating to the expression table ....
*/
#define EXP_FLAG_ACTIVE 0x01 /* for expExpressionEntryStatus */
#define EXP_FLAG_FIXED 0x02 /* for snmpd.conf persistence */
#define EXP_FLAG_VALID 0x04 /* for row creation/undo */
#define EXP_FLAG_SYSUT 0x08 /* sysUpTime.0 discontinuity */
/*
* Standard lengths for various Expression-MIB OCTET STRING objects:
* short tags ( 32 characters)
* SnmpAdminString-style values (255 characters)
* "long" DisplayString values (1024 characters)
*/
#define EXP_STR1_LEN 32
#define EXP_STR2_LEN 255
#define EXP_STR3_LEN 1024
/*
* Data structure for an expression row.
* Covers both expExpressionTable and expErrorTable
*/
struct expExpression {
/*
* Index values
*/
char expOwner[ EXP_STR1_LEN+1 ];
char expName[ EXP_STR1_LEN+1 ];
/*
* Column values for the main expExpressionTable
*/
char expExpression[ EXP_STR3_LEN+1 ];
char expComment[ EXP_STR2_LEN+1 ];
oid expPrefix[ MAX_OID_LEN ];
size_t expPrefix_len;
long expValueType;
long expDeltaInterval;
u_long expErrorCount;
/*
* Column values for the expExpressionErrorTable
*/
u_long expErrorTime;
long expErrorIndex;
long expErrorCode;
oid expErrorInstance[ MAX_OID_LEN ];
size_t expErrorInst_len;
unsigned int alarm;
netsnmp_session *session;
netsnmp_variable_list *pvars; /* expPrefix values */
long sysUpTime;
long count;
long flags;
};
/*
* Container structure for the expExpressionTable,
* and initialisation routine to create this.
*/
extern netsnmp_tdata *expr_table_data;
extern void init_expr_table_data(void);
/*
* function declarations
*/
void init_expExpression(void);
struct expExpression *expExpression_createEntry(const char *, const char *, int);
netsnmp_tdata_row *expExpression_createRow(const char *, const char *, int);
void expExpression_removeEntry( netsnmp_tdata_row *);
struct expExpression *expExpression_getEntry(const char *, const char *);
struct expExpression *expExpression_getFirstEntry( void );
struct expExpression *expExpression_getNextEntry(const char *, const char *);
void expExpression_enable( struct expExpression *);
void expExpression_disable( struct expExpression *);
void expExpression_getData( unsigned int, void *);
void expExpression_evaluate(struct expExpression *);
long expExpression_getNumEntries(int);
#endif /* EXPEXPRESSIONTABLE_H */
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