git.m6w6.name Git - m6w6/libmemcached/blob - docs/man/memcached_generate_hash_value.3

   1 .TH "MEMCACHED_GENERATE_HASH_VALUE" "3" "September 16, 2012" "1.0.10" "libmemcached"
   2 .SH NAME
   3 memcached_generate_hash_value \- Generating hash values directly
   4 .
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  33 .sp
  34 Hash a key value
  35 .SH SYNOPSIS
  36 .sp
  37 #include <libmemcached/memcached.h>
  38 .INDENT 0.0
  39 .TP
  40 .B memcached_hash_t
  41 .UNINDENT
  42 .INDENT 0.0
  43 .TP
  44 .B uint32_t memcached_generate_hash_value(const char\fI\ *key\fP, size_t\fI\ key_length\fP, \fI\%memcached_hash_t\fP\fI\ hash_algorithm\fP)
  45 .UNINDENT
  46 .INDENT 0.0
  47 .TP
  48 .B uint32_t memcached_generate_hash(memcached_st\fI\ *ptr\fP, const char\fI\ *key\fP, size_t\fI\ key_length\fP)
  49 .UNINDENT
  50 .INDENT 0.0
  51 .TP
  52 .B MEMCACHED_HASH_DEFAULT
  53 .UNINDENT
  54 .INDENT 0.0
  55 .TP
  56 .B MEMCACHED_HASH_MD5
  57 .UNINDENT
  58 .INDENT 0.0
  59 .TP
  60 .B MEMCACHED_HASH_CRC
  61 .UNINDENT
  62 .INDENT 0.0
  63 .TP
  64 .B MEMCACHED_HASH_FNV1_64
  65 .UNINDENT
  66 .INDENT 0.0
  67 .TP
  68 .B MEMCACHED_HASH_FNV1A_64
  69 .UNINDENT
  70 .INDENT 0.0
  71 .TP
  72 .B MEMCACHED_HASH_FNV1_32
  73 .UNINDENT
  74 .INDENT 0.0
  75 .TP
  76 .B MEMCACHED_HASH_FNV1A_32
  77 .UNINDENT
  78 .INDENT 0.0
  79 .TP
  80 .B MEMCACHED_HASH_JENKINS
  81 .UNINDENT
  82 .INDENT 0.0
  83 .TP
  84 .B MEMCACHED_HASH_MURMUR
  85 .UNINDENT
  86 .INDENT 0.0
  87 .TP
  88 .B MEMCACHED_HASH_HSIEH
  89 .UNINDENT
  90 .sp
  91 Compile and link with \-lmemcachedutil \-lmemcached
  92 .SH DESCRIPTION
  93 .sp
  94 \fI\%memcached_generate_hash_value()\fP allows you to hash a key using one of
  95 the hash functions defined in the library. This method is provided for
  96 the convenience of higher\-level language bindings and is not necessary
  97 for normal memcache operations.
  98 .sp
  99 The allowed hash algorithm constants are listed in the manpage for
 100 \fBmemcached_behavior_set()\fP.
 101 .sp
 102 \fI\%memcached_generate_hash()\fP takes a \fBmemcached_st\fP struture
 103 and produces the hash value that would have been generated based on the
 104 defaults of \fBmemcached_st\fP.
 105 .sp
 106 As of version 0.36 all hash methods have been placed into the library
 107 libhashkit(3) which is linked with libmemcached(3). For more information please see its documentation.
 108 .SH RETURN
 109 .sp
 110 A 32\-bit integer which is the result of hashing the given key.
 111 For 64\-bit hash algorithms, only the least\-significant 32 bits are
 112 returned.
 113 .SH HOME
 114 .sp
 115 To find out more information please check:
 116 \fI\%http://libmemcached.org/\fP
 117 .SH AUTHOR
 118 .sp
 119 Brian Aker, <\fI\%brian@tangent.org\fP>
 120 .SH SEE ALSO
 121 .sp
 122 \fImemcached(1)\fP \fIlibmemcached(3)\fP \fImemcached_strerror(3)\fP
 123 .SH AUTHOR
 124 Brian Aker
 125 .SH COPYRIGHT
 126 2011-2012, Brian Aker DataDifferential, http://datadifferential.com/
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