mk_key

Summary

#include <dataman/dataman.h>

mk_key(k_buff,key_val,key_len);

key k_buff;
char *key_val;
int key_len;

Description

This function generates keys to be used with the get, and remove routines. The variable k_buff is of type key. key is a typedef in the dataman.h include file. The argument key_val is a string representing the key to be retrieved (or removed), and len is the length of the string. The user may use the system defined value KEY to generate a key as long as the length passed is KEY_LEN. KEY is the system value of the last accessed key including KP and MFRP. Using this value the system can distinguish between different occurrences of identical keys.

Example

    #include <dataman/dataman.h>     main(int argc, char *argv[])     {         key k_buff;           ...         mk_key(key_buff,acct_num,10);    /* build key */         remove(key_buff,num_ix) else             fatal("Key does not exist: %s\n",key_buff);         ...     }

Or to save the system key:

        key key_buff[10];    /* declare key buff */           ...                /* process some more */         mk_key(key_buff[i],KEY,KEY_LEN);    /* save sys key */         get(name_ix,key_buff[i]) else           ... This retrieves a particular occurrence of a key.

«previous  next»