LIBMEMCACHED_EXAMPLES(3) | libmemcached | LIBMEMCACHED_EXAMPLES(3) |
NAME¶
libmemcached_examples - libmemcached Documentation
Examples for libmemcached
DESCRIPTION¶
For full examples, test cases are found in tests/*.c in the main distribution. These are always up to date, and are used for each test run of the library.
CONNECTING TO SERVERS¶
const char *config_string= "--SERVER=host10.example.com --SERVER=host11.example.com --SERVER=host10.example.com" memcached_st *memc= memcached(config_string, strlen(config_string); { ... }
memcached_free(memc);
In the above code you create a memcached_st object with three server by making use of memcached_create().
CREATING A POOL OF SERVERS¶
Creating a pool of Servers:
const char *config_string= "--SERVER=host10.example.com --SERVER=host11.example.com --SERVER=host10.example.com"; memcached_pool_st* pool= memcached_pool(config_string, strlen(config_string)); memcached_return_t rc; memcached_st *memc= memcached_pool_pop(pool, false, &rc); .... do work /*
Release the memc_ptr that was pulled from the pool */ memcached_pool_push(pool, memc); /*
Destroy the pool. */ memcached_pool_destroy(pool);
In the above code you create a memcached_pool_st object with three server by making use of memcached_pool().
When memcached_pool_destroy() all memory will be released that is associated with the pool.
ADDING A VALUE TO THE SERVER¶
Adding a value to the Server:
char *key= "foo"; char *value= "value"; memcached_return_t rc= memcached_set(memc, key, strlen(key), value, value_length, (time_t)0, (uint32_t)0); if (rc != MEMCACHED_SUCCESS) { ... // handle failure }
It is best practice to always look at the return value of any operation.
FETCHING MULTIPLE VALUES¶
memcached_return_t rc; char *keys[]= {"fudge", "son", "food"}; size_t key_length[]= {5, 3, 4}; unsigned int x; uint32_t flags; char return_key[MEMCACHED_MAX_KEY]; size_t return_key_length; char *return_value; size_t return_value_length; rc= memcached_mget(memc, keys, key_length, 3); x= 0; while ((return_value= memcached_fetch(memc, return_key, &return_key_length,
&return_value_length, &flags, &rc))) {
free(return_value);
x++; }
Notice that you freed values returned from memcached_fetch(). The define MEMCACHED_MAX_KEY is provided for usage.
HOME¶
To find out more information please check: http://libmemcached.org/
SEE ALSO¶
AUTHOR¶
Brian Aker
COPYRIGHT¶
2011-2013, Brian Aker DataDifferential, http://datadifferential.com/
February 9, 2014 | 1.0.18 |