1memcached_stat_execute.pop(3)memcached_stat_executememcached_stat_execute.pop(3)
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6 memcached_stat, memcached_stat_servername, memcached_stat_get_value,
7 memcached_stat_get_keys - Get memcached statistics
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10 C Client Library for memcached (libmemcached, -lmemcached)
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13 #include <memcached.h>
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15 memcached_stat_st *memcached_stat (memcached_st *ptr,
16 char *args,
17 memcached_return_t *error);
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19 memcached_return_t memcached_stat_servername (memcached_stat_st *stat,
20 char *args,
21 const char *hostname,
22 unsigned int port);
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24 char *
25 memcached_stat_get_value (memcached_st *ptr,
26 memcached_stat_st *stat,
27 const char *key,
28 memcached_return_t *error);
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30 char **
31 memcached_stat_get_keys (memcached_st *ptr,
32 memcached_stat_st *stat,
33 memcached_return_t *error);
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35 memcached_return_t
36 memcached_stat_execute (memcached_st *memc,
37 const char *args,
38 memcached_stat_fn func,
39 void *context);
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42 libmemcached(3) has the ability to query a memcached server (or
43 collection of servers) for their current state. Queries to find state
44 return a "memcached_stat_st" structure. You are responsible for freeing
45 this structure. While it is possible to access the structure directly
46 it is not advisable. <memcached_stat_get_value() has been provided to
47 query the structure.
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49 memcached_stat_execute() uses the servers found in "memcached_stat_st"
50 and executes a "stat" command on each server. args is an optional
51 argument that can be passed in to modify the behavior of "stats". You
52 will need to supply a callback function that will be supplied each pair
53 of values returned by the memcached server.
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55 memcached_stat() fetches an array of "memcached_stat_st" structures
56 containing the state of all available memcached servers. The return
57 value must be freed by the calling application. If called with the
58 "MEMCACHED_BEHAVIOR_USE_UDP" behavior set, a NULL value is returned and
59 the error parameter is set to "MEMCACHED_NOT_SUPPORTED".
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61 memcached_stat_servername() can be used standalone without a
62 "memcached_st" to obtain the state of a particular server. "args" is
63 used to define a particular state object (a list of these are not
64 provided for by either the memcached_stat_get_keys() call nor are they
65 defined in the memcached protocol). You must specify the hostname and
66 port of the server you want to obtain information on.
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68 memcached_stat_get_value() returns the value of a particular state key.
69 You specify the key you wish to obtain. The key must be null
70 terminated.
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72 memcached_stat_get_keys() returns a list of keys that the server has
73 state objects on. You are responsible for freeing this list.
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75 A command line tool, memstat(1), is provided so that you do not have to
76 write an application to do this.
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79 Varies, see particular functions.
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81 Any method returning a "memcached_stat_st" expects you to free the
82 memory allocated for it.
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85 To find out more information please check:
86 <https://launchpad.net/libmemcached>
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89 Brian Aker, <brian@tangent.org>
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92 memcached(1) libmemcached(3) memcached_strerror(3)
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96 2010-07-28 memcached_stat_execute.pop(3)