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.TH "MEMCACHED_FETCH" "3" "September 16, 2012" "1.0.10" "libmemcached"
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memcached_fetch \- Retrieving data from the server
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.\" Man page generated from reStructeredText.
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#include <libmemcached/memcached.h>
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.B char *memcached_fetch(memcached_st\fI\ *ptr\fP, char\fI\ *key\fP, size_t\fI\ *key_length\fP, size_t\fI\ *value_length\fP, uint32_t\fI\ *flags\fP, memcached_return_t\fI\ *error\fP)
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Deprecated since version 0.50: Use \fBmemcached_fetch_result()\fP instead.
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Compile and link with \-lmemcached
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\fI\%memcached_fetch()\fP is used to fetch an individual value from the server. \fBmemcached_mget()\fP must always be called before using this method.
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You must pass in a key and its length to fetch the object. You must supply
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three pointer variables which will give you the state of the returned
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object. A \fBuint32_t\fP pointer to contain whatever flags you stored with the value, a \fBsize_t\fP pointer which will be filled with size of of the
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object, and a \fBmemcached_return_t\fP pointer to hold any error. The
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object will be returned upon success and NULL will be returned on failure. \fBMEMCACHED_END\fP is returned by the *error value when all objects that have been found are returned. The final value upon \fBMEMCACHED_END\fP is null.
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Values returned by \fI\%memcached_fetch()\fP must be freed by the caller.
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All of the above functions are not tested when the
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\fBMEMCACHED_BEHAVIOR_USE_UDP\fP has been set. Executing any of these
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functions with this behavior on will result in \fBMEMCACHED_NOT_SUPPORTED\fP being returned, or for those functions which do not return a \fBmemcached_return_t\fP, the error function parameter will be set to \fBMEMCACHED_NOT_SUPPORTED\fP.
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\fI\%memcached_fetch()\fP sets error to
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to \fBMEMCACHED_END\fP upon successful conclusion.
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\fBMEMCACHED_NOTFOUND\fP will be return if no keys at all were found.
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\fBMEMCACHED_KEY_TOO_BIG\fP is set to error whenever \fI\%memcached_fetch()\fP was used
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and the key was set larger then \fBMEMCACHED_MAX_KEY\fP, which was the largest
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key allowed for the original memcached ascii server.
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To find out more information please check:
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\fI\%http://libmemcached.org/\fP
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\fImemcached(1)\fP \fIlibmemcached(3)\fP \fImemcached_strerror(3)\fP \fImemcached_fetch_result(3)\fP
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2011-2012, Brian Aker DataDifferential, http://datadifferential.com/
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