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.TH "MEMCACHED_SERVER_CURSOR" "3" "February 09, 2014" "1.0.18" "libmemcached"
.SH NAME
memcached_server_cursor \- libmemcached Documentation
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.SH SYNOPSIS
.sp
#include <libmemcached/memcached.h>
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.TP
.B memcached_server_fn
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.B uint32_t memcached_server_count(memcached_st\fI\ *ptr\fP)
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.B memcached_return_t memcached_server_add(memcached_st\fI\ *ptr\fP, const char\fI\ *hostname\fP, in_port_t\fI\ port\fP)
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.B memcached_return_t memcached_server_add_udp(memcached_st\fI\ *ptr\fP, const char\fI\ *hostname\fP, in_port_t\fI\ port\fP)
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.B memcached_return_t memcached_server_add_unix_socket(memcached_st\fI\ *ptr\fP, const char\fI\ *socket\fP)
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.B memcached_return_t memcached_server_push(memcached_st\fI\ *ptr\fP, const memcached_server_st\fI\ *list\fP)
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.B const memcached_instance_st * memcached_server_by_key(memcached_st\fI\ *ptr\fP, const char\fI\ *key\fP, size_t\fI\ key_length\fP, memcached_return_t\fI\ *error\fP)
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.B const memcached_instance_st * memcached_server_get_last_disconnect(const memcached_st\fI\ *ptr\fP)
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.B memcached_return_t memcached_server_cursor(const memcached_st\fI\ *ptr\fP, const \fI\%memcached_server_fn\fP\fI\ *callback\fP, void\fI\ *context\fP, uint32_t\fI\ number_of_callbacks\fP)
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.sp
compile and link with \-lmemcached
.SH DESCRIPTION
.sp
\fBlibmemcached\fP performs operations on a list of hosts. The order of
these hosts determine routing to keys. Functions are provided to add keys to
memcached_st structures. To manipulate lists of servers see
memcached_server_st(3).
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\fI\%memcached_server_count()\fP provides you a count of the current number of
servers being used by a \fBmemcached_st\fP structure.
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.B \fI\%memcached_server_add()\fP pushes a single TCP server into the \fBmemcached_st\fP structure. This server will be placed at the end. Duplicate servers
are allowed, so duplication is not checked. Executing this function with the \fBMEMCACHED_BEHAVIOR_USE_UDP\fP behavior set will result in a \fBMEMCACHED_INVALID_HOST_PROTOCOL\fP\&.
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\fI\%memcached_server_add_udp()\fP pushes a single UDP server into the \fBmemcached_st\fP structure. This server will be placed at the end. Duplicate
servers are allowed, so duplication is not checked. Executing this function with out setting the \fBMEMCACHED_BEHAVIOR_USE_UDP\fP behavior will result in a
\fBMEMCACHED_INVALID_HOST_PROTOCOL\fP\&.
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\fI\%memcached_server_add_unix_socket()\fP pushes a single UNIX socket into the \fBmemcached_st\fP structure. This UNIX socket will be placed at the end.
Duplicate servers are allowed, so duplication is not checked. The length
of the filename must be one character less than \fBMEMCACHED_MAX_HOST_LENGTH\fP\&.
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\fI\%memcached_server_push()\fP pushes an array of \fBmemcached_server_st\fP into the \fBmemcached_st\fP structure. These servers will be placed at
the end. Duplicate servers are allowed, so duplication is not checked. A
copy is made of structure so the list provided (and any operations on
the list) are not saved.
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\fI\%memcached_server_by_key()\fP allows you to provide a key and retrieve the
server which would be used for assignment.
.sp
\fI\%memcached_server_get_last_disconnect()\fP returns a pointer to the last
server for which there was a connection problem. It does not mean this
particular server is currently dead but if the library is reporting a server
is, the returned server is a very good candidate.
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\fI\%memcached_server_cursor()\fP takes a memcached_st and loops through the
list of hosts currently in the cursor calling the list of callback
functions provided. You can optionally pass in a value via
context which will be provided to each callback function. An error
return from any callback will terminate the loop. \fI\%memcached_server_cursor()\fP is passed the original caller \fBmemcached_st\fP in its current state.
.SH RETURN
.sp
Varies, see particular functions.
.SH HOME
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To find out more information please check:
\fI\%http://libmemcached.org/\fP
.SH SEE ALSO
.sp
\fImemcached(1)\fP \fIlibmemcached(3)\fP \fImemcached_strerror(3)\fP
.SH AUTHOR
Brian Aker
.SH COPYRIGHT
2011-2013, Brian Aker DataDifferential, http://datadifferential.com/
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