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Manual Reference Pages  -  MEMCACHED::LIBMEMCACHED::MEMCACHED_MEMORY_ALLOCATORS (3)

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NAME

memcached_set_memory_allocators, memcached_get_memory_allocators, memcached_set_memory_allocators_context - Manage memory allocator functions

CONTENTS

LIBRARY

C Client Library for memcached (libmemcached, -lmemcached)

SYNOPSIS



  #include <memcached.h>

  memcached_return_t
    memcached_set_memory_allocators (memcached_st *ptr,
                                     memcached_malloc_fn mem_malloc,
                                     memcached_free_fn mem_free,
                                     memcached_realloc_fn mem_realloc,
                                     memcached_calloc_fn mem_calloc,
                                     void *context);

  void
    memcached_get_memory_allocators (memcached_st *ptr,
                                     memcached_malloc_fn *mem_malloc,
                                     memcached_free_fn *mem_free,
                                     memcached_realloc_fn *mem_realloc,
                                     memcached_calloc_fn *mem_calloc);

  void *
    memcached_get_memory_allocators_context(const memcached_st *ptr);

  void *
    (*memcached_malloc_fn) (memcached_st *ptr, const size_t size,
                            void *context);

  void *
    (*memcached_realloc_fn) (memcached_st *ptr, void *mem,
                             const size_t size,
                             void *context);

  void
    (*memcached_free_fn) (memcached_st *ptr, void *mem,
                          void *context);

  void *
  (*memcached_calloc_fn) (memcached_st *ptr,
                          size_t nelem,
                          const size_t elsize,
                          void *context);



DESCRIPTION

libmemcached(3) allows you to specify your own memory allocators optimized for your application.

memcached_set_memory_allocators() is used to set the memory allocators used by the memcached instance specified by ptr. Please note that you cannot override only one of the memory allocators, you have to specify a complete new set if you want to override one of them. All of the memory allocation functions should behave as specified in the C99 standard. Specify NULL as all functions to reset them to the default values.

memcached_get_memory_allocators() is used to get the currently used memory allocators by a mamcached handle.

memcached_get_memory_allocators_context() returns the void * that was passed in during the call to memcached_set_memory_allocators().

The first argument to the memory allocator functions is a pointer to a memcached structure, the is passed as const and you will need to clone it in order to make use of any operation which would modify it.

NOTES

In version 0.38 all functions were modified to have a context void pointer passed to them. This was so that customer allocators could have their own space for memory.

RETURN

memcached_set_memory_allocators() return MEMCACHED_SUCCESS upon success, and MEMCACHED_FAILURE if you don’t pass a complete set of function pointers.

HOME

To find out more information please check: <https://launchpad.net/libmemcached>

AUTHOR

Trond Norbye, <trond.norbye@gmail.com> Brian Aker, <brian@tangent.orf<gt>

SEE ALSO

memcached(1) libmemcached(3) memcached_get_user_data(3) memcached_set_user_data(3)
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perl v5.20.3 MEMCACHED::LIBMEMCACHED::MEMCACHED_MEMORY_ALLOCATORS (3) 2015-05-07

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