MirOS Manual: hashinit(9)

HASHINIT(9)                   BSD Kernel Manual                    HASHINIT(9)

NAME

     hashinit - kernel hashtable functions

SYNOPSIS

     #include <sys/systm.h>

     void *
     hashinit(int num, int type, int flags, u_long *mask);

DESCRIPTION

     The hashinit() function is used to allocate a hashtable of a desired size
     given by the num argument. The hashinit() function will round this number
     to the next power of two, and allocate and initialize the requested
     hashtable. The type and flags arguments are passed to the malloc(9) func-
     tion unchanged. The mask argument is used to pass back the mask for use
     with the allocated hashing table. For an example of its use, see hash(9).

RETURN VALUES

     The hashinit() function returns a pointer to the allocated and initial-
     ized hash table.

SEE ALSO

     free(9), hash(9), malloc(9)

LIMITATIONS

     The hashinit() function currently only allocates hash tables with LIST
     bucket pointers at this time. Future enhancements to allocate QUEUE buck-
     et pointers may be warranted. This may necessitate an API change to ac-
     commodate.

HISTORY

     The hashinit function first appeared in 4.4BSD.

MirOS BSD #10-current          December 8, 2001                              1

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