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[awesomized/libmemcached] / docs / man / memcached_stats.3
1 .TH "MEMCACHED_STATS" "3" "October 18, 2011" "1.01" "libmemcached"
2 .SH NAME
3 memcached_stats \- libmemcached Documentation
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34 Get memcached statistics
35 .SH SYNOPSIS
36 .sp
37 #include <libmemcached/memcached.h>
38 .INDENT 0.0
39 .TP
40 .B memcached_stat_st *memcached_stat (memcached_st *ptr, char *args, memcached_return_t *error);
41 .UNINDENT
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43 .TP
44 .B memcached_return_t memcached_stat_servername (memcached_stat_st *stat, char *args, const char *hostname, unsigned int port);
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47 .TP
48 .B char * memcached_stat_get_value (memcached_st *ptr, memcached_stat_st *stat, const char *key, memcached_return_t *error);
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51 .TP
52 .B char ** memcached_stat_get_keys (memcached_st *ptr, memcached_stat_st *stat, memcached_return_t *error);
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55 .TP
56 .B memcached_return_t memcached_stat_execute (memcached_st *memc, const char *args, memcached_stat_fn func, void *context);
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58 .sp
59 Compile and link with \-lmemcached
60 .SH DESCRIPTION
61 .sp
62 libmemcached(3) has the ability to query a memcached server (or collection
63 of servers) for their current state. Queries to find state return a
64 \fBmemcached_stat_st\fP structure. You are responsible for freeing this structure. While it is possible to access the structure directly it is not advisable. \fBmemcached_stat_get_value()\fP has been provided to query the structure.
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66 \fBmemcached_stat_execute()\fP uses the servers found in \fBmemcached_stat_st\fP and executes a "stat" command on each server. args is an optional argument that can be passed in to modify the behavior of "stats". You will need to supply a callback function that will be supplied each pair of values returned by
67 the memcached server.
68 .sp
69 \fBmemcached_stat()\fP fetches an array of \fBmemcached_stat_st\fP structures containing the state of all available memcached servers. The return value must be freed by the calling application. If called with the \fBMEMCACHED_BEHAVIOR_USE_UDP\fP behavior set, a NULL value is returned and the error parameter is set to \fBMEMCACHED_NOT_SUPPORTED\fP.
70 .sp
71 \fBmemcached_stat_servername()\fP can be used standalone without a \fBmemcached_st\fP to obtain the state of a particular server. "args" is used to define a particular state object (a list of these are not provided for by either
72 the \fBmemcached_stat_get_keys()\fP call nor are they defined in the memcached protocol). You must specify the hostname and port of the server you want to
73 obtain information on.
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75 \fBmemcached_stat_get_value()\fP returns the value of a particular state key. You specify the key you wish to obtain. The key must be null terminated.
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77 \fBmemcached_stat_get_keys()\fP returns a list of keys that the server has state objects on. You are responsible for freeing this list.
78 .sp
79 A command line tool, memstat(1), is provided so that you do not have to write
80 an application to do this.
81 .SH RETURN
82 .sp
83 Varies, see particular functions.
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85 Any method returning a \fBmemcached_stat_st\fP expects you to free the
86 memory allocated for it.
87 .SH HOME
88 .sp
89 To find out more information please check:
90 \fI\%http://libmemcached.org/\fP
91 .SH AUTHOR
92 .sp
93 Brian Aker, <\fI\%brian@tangent.org\fP>
94 .SH SEE ALSO
95 .sp
96 \fImemcached(1)\fP \fIlibmemcached(3)\fP \fImemcached_strerror(3)\fP
97 .SH AUTHOR
98 Brian Aker
99 .SH COPYRIGHT
100 2011, Brian Aker DataDifferential, http://datadifferential.com/
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