NAME

memcached_increment, memcached_decrement

LIBRARY

C Client Library for memcached (libmemcached, -lmemcached)

SYNOPSIS

  #include <memcached.h>

  memcached_return
    memcached_increment (memcached_st *ptr, 
                         char *key, size_t key_length,
                         unsigned int offset,
                         uint64_t *value);

  memcached_return
    memcached_decrement (memcached_st *ptr, 
                         char *key, size_t key_length,
                         unsigned int offset,
                         uint64_t *value);

DESCRIPTION

memcached(1) servers have the ability to increment and decrement keys (overflow and underflow are not detected). This gives you the ability to use memcached to generate shared sequences of values.

memcached_increment() takes a key and keylength and increments the value by the offset passed to it. The value is then returned via the unsigned int value pointer you pass to it.

memcached_decrement() takes a key and keylength and decrements the value by the offset passed to it. The value is then returned via the unsigned int value pointer you pass to it.

RETURN

A value of type memcached_return is returned. On success that value will be MEMCACHED_SUCCESS. Use memcached_strerror() to translate this value to a printable string.

HOME

To find out more information please check: http://tangent.org/552/libmemcached.html

AUTHOR

Brian Aker, <brian@tangent.org>