git.m6w6.name Git - awesomized/libmemcached/blob - docs/man/memcached_memory_allocators.3

   1 .TH "MEMCACHED_MEMORY_ALLOCATORS" "3" "October 26, 2011" "1.0.2" "libmemcached"
   2 .SH NAME
   3 memcached_memory_allocators \- libmemcached Documentation
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  34 Manage memory allocator functions
  35 .SH SYNOPSIS
  36 .sp
  37 #include <libmemcached/memcached.h>
  38 .INDENT 0.0
  39 .TP
  40 .B 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);
  41 .UNINDENT
  42 .INDENT 0.0
  43 .TP
  44 .B 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);
  45 .UNINDENT
  46 .INDENT 0.0
  47 .TP
  48 .B void * memcached_get_memory_allocators_context(const memcached_st *ptr);
  49 .UNINDENT
  50 .INDENT 0.0
  51 .TP
  52 .B void * (*memcached_malloc_fn) (memcached_st *ptr, const size_t size, void *context);
  53 .UNINDENT
  54 .INDENT 0.0
  55 .TP
  56 .B void * (*memcached_realloc_fn) (memcached_st *ptr, void *mem, const size_t size, void *context);
  57 .UNINDENT
  58 .INDENT 0.0
  59 .TP
  60 .B void (*memcached_free_fn) (memcached_st *ptr, void *mem, void *context);
  61 .UNINDENT
  62 .INDENT 0.0
  63 .TP
  64 .B void * (*memcached_calloc_fn) (memcached_st *ptr, size_t nelem, const size_t elsize, void *context);
  65 .UNINDENT
  66 .sp
  67 Compile and link with \-lmemcached
  68 .SH DESCRIPTION
  69 .sp
  70 libmemcached(3) allows you to specify your own memory allocators, optimized
  71 for your application. This enables libmemcached to be used inside of applications that have their own malloc implementation.
  72 .sp
  73 \fBmemcached_set_memory_allocators()\fP is used to set the memory
  74 allocators used by the memcached instance specified by ptr. Please note that
  75 you cannot override only one of the memory allocators, you have to specify a
  76 complete new set if you want to override one of them. All of the memory
  77 allocation functions should behave as specified in the C99 standard. Specify
  78 NULL as all functions to reset them to the default values.
  79 .sp
  80 \fBmemcached_get_memory_allocators()\fP is used to get the currently used
  81 memory allocators by a mamcached handle.
  82 .sp
  83 \fBmemcached_get_memory_allocators_context()\fP returns the void * that
  84 was passed in during the call to \fBmemcached_set_memory_allocators()\fP.
  85 .sp
  86 The first argument to the memory allocator functions is a pointer to a
  87 memcached structure, the is passed as const and you will need to clone
  88 it in order to make use of any operation which would modify it.
  89 .SH NOTES
  90 .sp
  91 In version 0.38 all functions were modified to have a context void pointer
  92 passed to them. This was so that customer allocators could have their
  93 own space for memory.
  94 .SH RETURN
  95 .sp
  96 \fBmemcached_set_memory_allocators()\fP return \fBMEMCACHED_SUCCESS\fP
  97 upon success, and \fBMEMCACHED_FAILURE\fP if you don\(aqt pass a complete set
  98 of function pointers.
  99 .SH HOME
 100 .sp
 101 To find out more information please check:
 102 \fI\%http://libmemcached.org/\fP
 103 .SH SEE ALSO
 104 .sp
 105 \fImemcached(1)\fP \fIlibmemcached(3)\fP \fImemcached_strerror(3)\fP
 106 .SH AUTHOR
 107 Brian Aker
 108 .SH COPYRIGHT
 109 2011, Brian Aker DataDifferential, http://datadifferential.com/
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