CVS commit: syssrc/sys/sys

[Luke Mewburn <lukem%netbsd.org@localhost>]

Module Name:    syssrc
Committed By:   lukem
Date:           Wed Dec  5 06:51:56 UTC 2001

Modified Files:
        syssrc/sys/sys: Makefile
Added Files:
        syssrc/sys/sys: hash.h

Log Message:
Add <sys/hash.h>, which currently implements three inline functions:

    uint32_t hash32_buf(const void *buf, size_t len, uint32_t ihash)
        return 32 bit hash of buf, size len,
        seeded with initial hash of ihash (usually HASH32_BUF_INIT).
        this hash may use a different algorithm to hash32_str() and
        hash32_strn().

    uint32_t hash32_str(const void *buf, uint32_t ihash)
        return 32 bit hash of buf, which is an NUL terminated ascii string,
        seeded with initial hash of ihash (usually HASH32_STR_INIT).
        this hash may use a different algorithm to hash32_buf()
        but must use the same algorithm as hash32_strn().

    uint32_t hash32_strn(const void *buf, size_t len, uint32_t ihash)
        return 32 bit hash of buf, which is an NUL terminated ascii string
        up to a maximum of len bytes,
        seeded with initial hash of ihash (usually HASH32_STR_INIT).
        this hash may use a different algorithm to hash32_buf()
        but must use the same algorithm as hash32_str().

As discussed on tech-kern%netbsd.org.@localhost


To generate a diff of this commit:
cvs rdiff -r1.36 -r1.37 syssrc/sys/sys/Makefile
cvs rdiff -r0 -r1.1 syssrc/sys/sys/hash.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.