Working with memcached pools
============================
-
-Manage pools
-
-
-*******
-LIBRARY
-*******
-
-
-C Client Library for memcached (libmemcachedutil, -lmemcachedutil)
-
-
--------
SYNOPSIS
--------
+#include <libmemcached/memcached_pool.h>
+.. c:type:: memcached_pool_st
-.. code-block:: perl
+.. c:function:: memcached_pool_st* memcached_pool(const char *option_string, size_t option_string_length)
- #include <libmemcached/memcached_pool.h>
-
- memcached_pool_st * memcached_pool_create(memcached_st* mmc, int initial, int max);
-
- memcached_st * memcached_pool_destroy(memcached_pool_st* pool);
+.. c:function:: memcached_pool_st* memcached_pool_create(memcached_st* mmc, int initial, int max)
+.. deprecated:: 0.46
+ Use :c:func:`memcached_pool()`
- memcached_st * memcached_pool_pop (memcached_pool_st* pool, bool block, memcached_return_t *rc);
+.. c:function:: memcached_st* memcached_pool_destroy(memcached_pool_st* pool)
- memcached_return_t memcached_pool_push(memcached_pool_st* pool, memcached_st *mmc);
-
- memcached_st *memcached_create (memcached_st *ptr);
+.. c:function:: memcached_st* memcached_pool_pop(memcached_pool_st* pool, bool block, memcached_return_t *rc)
+.. deprecated:: 0.53
+ Use :c:func:`memcached_pool_fetch()`
+
+.. c:function:: memcached_st* memcached_pool_fetch(memcached_pool_st*, struct timespec* relative_time, memcached_return_t* rc);
+
+.. versionadded:: 0.53
+ Synonym for memcached_pool_pop()
+
+.. c:function:: memcached_return_t memcached_pool_push(memcached_pool_st* pool, memcached_st *mmc)
+.. deprecated:: 0.53
+ Use :c:func:`memcached_pool_push()`
+
+.. c:function:: memcached_return_t memcached_pool_release(memcached_pool_st* pool, memcached_st* mmc);
+.. versionadded:: 0.53
+ Synonym for memcached_pool_push().
- memcached_return_t memcached_pool_behavior_set(memcached_pool_st *pool, memcached_behavior_t flag, uint64_t data)
+.. c:function:: memcached_return_t memcached_pool_behavior_set(memcached_pool_st *pool, memcached_behavior_t flag, uint64_t data)
- memcached_return_t memcached_pool_behavior_get(memcached_pool_st *pool, memcached_behavior_t flag, uint64_t *value)
-
+.. c:function:: memcached_return_t memcached_pool_behavior_get(memcached_pool_st *pool, memcached_behavior_t flag, uint64_t *value)
+Compile and link with -lmemcachedutil -lmemcached
-----------
DESCRIPTION
-----------
-memcached_pool_create() is used to create a connection pool of objects you
-may use to remove the overhead of using memcached_clone for short
-lived \ ``memcached_st``\ objects. The mmc argument should be an
-initialised \ ``memcached_st``\ structure, and a successfull invocation of
-memcached_pool_create takes full ownership of the variable (until it
-is released by memcached_pool_destroy). The \ ``initial``\ argument
-specifies the initial size of the connection pool, and the \ ``max``\
-argument specifies the maximum size the connection pool should grow
-to. Please note that the library will allocate a fixed size buffer
-scaled to the max size of the connection pool, so you should not pass
-MAXINT or some other large number here.
-
-memcached_pool_destroy() is used to destroy the connection pool
-created with memcached_pool_create() and release all allocated
-resources. It will return the pointer to the \ ``memcached_st``\ structure
-passed as an argument to memcached_pool_create(), and returns the
-ownership of the pointer to the caller.
-
-memcached_pool_pop() is used to grab a connection structure from the
-connection pool. The block argument specifies if the function should
+:c:func:`memcached_pool()` is used to create a connection pool of objects you
+may use to remove the overhead of using memcached_clone for short lived
+:c:type:`memcached_st` objects. Please see :doc:`libmemcached_configuration` for details on the format of the configuration string.
+
+:c:func:`memcached_pool_destroy()` is used to destroy the connection pool
+created with :c:func:`memcached_pool_create()` and release all allocated
+resources. It will return the pointer to the :c:type:`memcached_st` structure
+passed as an argument to :c:func:`memcached_pool_create()`, and returns the ownership of the pointer to the caller when created with :c:func:`memcached_pool_create()`, otherwise NULL is returned..
+
+:c:func:`memcached_pool_fetch()` is used to fetch a connection structure from the
+connection pool. The relative_time argument specifies if the function should
block and wait for a connection structure to be available if we try
-to exceed the maximum size.
+to exceed the maximum size. You need to specify time in relative time.
-memcached_pool_push() is used to return a connection structure back to the pool.
+:c:func:`memcached_pool_release()` is used to return a connection structure back to the pool.
-memcached_pool_behavior_set() and memcached_pool_behagior_get() is
-used to get/set behavior flags on all connections in the pool.
+:c:func:`memcached_pool_behavior_get()` and :c:func:`memcached_pool_behavior_set()` is used to get/set behavior flags on all connections in the pool.
+Both :c:func:`memcached_pool_release()` and :c:func:`memcached_pool_fetch()` are thread safe.
-******
+------
RETURN
-******
+------
+:c:func:`memcached_pool_destroy()` returns the pointer (and ownership) to the :c:type:`memcached_st` structure used to create the pool. If connections are in use it returns NULL.
-memcached_pool_create() returns a pointer to the newly created
-memcached_pool_st structure. On an allocation failure, it returns
-NULL.
+:c:func:`memcached_pool_pop()` returns a pointer to a :c:type:`memcached_st` structure from the pool (or NULL if an allocation cannot be satisfied).
-memcached_pool_destroy() returns the pointer (and ownership) to the
-memcached_st structure used to create the pool. If connections are in
-use it returns NULL.
+:c:func:`memcached_pool_release()` returns :c:type:`MEMCACHED_SUCCESS` upon success.
-memcached_pool_pop() returns a pointer to a memcached_st structure
-from the pool (or NULL if an allocation cannot be satisfied).
+:c:func:`memcached_pool_behavior_get()` and :c:func:`memcached_pool_behavior_get()` returns :c:type:`MEMCACHED_SUCCESS` upon success.
-memcached_pool_push() returns MEMCACHED_SUCCESS upon success.
+If any methods returns MEMCACHED_IN_PROGRESS then a lock on the pool could not be obtained. If any of the parameters passed to any of these functions is invalid, MEMCACHED_INVALID_ARGUMENTS will be returned.
-memcached_pool_behavior_get() and memcached_pool_behavior_get()
-returns MEMCACHED_SUCCESS upon success.
+memcached_pool_fetch() may return MEMCACHED_TIMEOUT if a timeout occurs while waiting for a free memcached_st. MEMCACHED_NOTFOUND if no memcached_st was available.
-****
+----
HOME
-****
+----
To find out more information please check:
-`https://launchpad.net/libmemcached <https://launchpad.net/libmemcached>`_
+`http://libmemcached.org/ <http://libmemcached.org/>`_
-******
+------
AUTHOR
-******
+------
+
+Brian Aker, <brian@tangent.org>
Trond Norbye, <trond.norbye@gmail.com>
SEE ALSO
--------
-:manpage:`memcached(1)` :manpage:`libmemcached(3)` :manpage:`memcached_strerror(3)`
+:manpage:`memcached(1)` :manpage:`libmemcached(3)` :manpage:`memcached_strerror(3)` :manpage:`libmemcached_configuration(3)`
projects / m6w6 / libmemcached / blobdiff