X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=docs%2Flibmemcached_examples.rst;h=81137e86353dc7e31a696932dc257bc89cf79ec5;hb=50dc8599f105fe915607e6f2d57851fd9acad839;hp=38d6f7b5ef4e9c331a4c4ae1134db0b3f69c7c1f;hpb=ef301192f389f5f6ab4f8ed8c204ca7e115fe0b1;p=m6w6%2Flibmemcached diff --git a/docs/libmemcached_examples.rst b/docs/libmemcached_examples.rst index 38d6f7b5..81137e86 100644 --- a/docs/libmemcached_examples.rst +++ b/docs/libmemcached_examples.rst @@ -13,58 +13,60 @@ 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. ------------------------------- -Creating and Freeing structure ------------------------------- + +--------------------- +Connecting to servers +--------------------- .. code-block:: c - memcached_st *memc; - memcached_return_t rc; - - memc= memcached_create(NULL); - ...do stuff... + 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); -The above code would create a connection and then free the connection when -finished. +In the above code you create a \ ``memcached_st``\ object with three server by making use of :manpage:`memcached_create_with_options(3)`. ---------------------- -Connecting to servers ---------------------- +-------------------------- +Creating a pool of servers +-------------------------- .. code-block:: c - memcached_server_st *servers; - memcached_st *memc= memcached_create(NULL); - char servername[]= "0.example.com"; - - servers= memcached_server_list_append(NULL, servername, 400, &rc); - - for (x= 0; x < 20; x++) - { - char buffer[SMALL_STRING_LEN]; - - snprintf(buffer, SMALL_STRING_LEN, "%u.example.com", 400+x); - servers= memcached_server_list_append(servers, buffer, 401, &rc); - } - rc= memcached_server_push(memc, servers); - memcached_server_free(servers); - memcached_free(memc); + 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_st``\ object that you then feed in a -single host into. In the for loop you build a \ ``memcached_server_st``\ -pointer that you then later feed via memcached_server_push() into the -\ ``memcached_st``\ structure. +In the above code you create a \ ``memcached_pool_st``\ object with three +server by making use of :manpage:`memcached_pool(3)`. -You can reuse the \ ``memcached_server_st``\ object with multile \ ``memcached_st``\ -structures. +When memcached_pool_destroy() all memory will be released that is associated +with the pool. ---------------------------- @@ -76,25 +78,14 @@ Adding a value to the server .. code-block:: c char *key= "foo"; - char *value; - size_t value_length= 8191; - unsigned int x; - - value = (char*)malloc(value_length); - assert(value); - - for (x= 0; x < value_length; x++) - value[x] = (char) (x % 127); - - for (x= 0; x < 1; x++) + 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) { - rc= memcached_set(memc, key, strlen(key), - value, value_length, - (time_t)0, (uint32_t)0); - assert(rc == MEMCACHED_SUCCESS); + ... // handle failure } - - free(value); It is best practice to always look at the return value of any operation. @@ -141,7 +132,7 @@ HOME To find out more information please check: -`https://launchpad.net/libmemcached `_ +`http://libmemcached.org/ `_ --------