MEMCACHED_INCREMENT(3)           libmemcached           MEMCACHED_INCREMENT(3)

NAME
       memcached_increment - Incrementing and Decrementing Values

SYNOPSIS
       #include <libmemcached/memcached.h>

       memcached_return_t     memcached_increment(memcached_st *ptr,     const
       char *key, size_t key_length, uint32_t offset, uint64_t *value)

       memcached_return_t     memcached_decrement(memcached_st *ptr,     const
       char *key, size_t key_length, uint32_t offset, uint64_t *value)

       memcached_return_t  memcached_increment_with_initial(memcached_st *ptr,
       const char *key, size_t key_length, uint64_t offset,  uint64_t initial,
       time_t expiration, uint64_t *value)

       memcached_return_t  memcached_decrement_with_initial(memcached_st *ptr,
       const char *key, size_t key_length, uint64_t offset,  uint64_t initial,
       time_t expiration, uint64_t *value)

       memcached_return_t  memcached_increment_by_key(memcached_st *ptr, const
       char *group_key,     size_t group_key_length,     const      char *key,
       size_t key_length, uint32_t offset, uint64_t *value)

       memcached_return_t  memcached_decrement_by_key(memcached_st *ptr, const
       char *group_key,     size_t group_key_length,     const      char *key,
       size_t key_length, uint32_t offset, uint64_t *value)

       memcached_return_t         memcached_increment_with_initial_by_key(mem-
       cached_st *ptr, const char *group_key,  size_t group_key_length,  const
       char *key,    size_t key_length,   uint64_t offset,   uint64_t initial,
       time_t expiration, uint64_t *value)

       memcached_return_t         memcached_decrement_with_initial_by_key(mem-
       cached_st *ptr,  const  char *group_key, size_t group_key_length, const
       char *key,   size_t key_length,   uint64_t offset,    uint64_t initial,
       time_t expiration, uint64_t *value)

       Compile and link with -lmemcached

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 uint32_t
       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 uint32_t
       value pointer you pass to it.

       memcached_increment_with_initial  takes  a key and keylength and incre-
       ments the value by the offset passed to it. If the object specified  by
       key  does  not  exist,  one of two things may happen: If the expiration
       value is MEMCACHED_EXPIRATION_NOT_ADD, the operation will fail. For all
       other  expiration  values,  the  operation  will succeed by seeding the
       value for that key with a initial value to expire with the provided ex-
       piration time. The flags will be set to zero.The value is then returned
       via the  uint32_t  value  pointer  you  pass  to  it.  memcached_incre-
       ment_with_initial is only available when using the binary protocol.

       memcached_decrement_with_initial  takes  a key and keylength and decre-
       ments the value by the offset passed to it. If the object specified  by
       key  does  not  exist,  one of two things may happen: If the expiration
       value is MEMCACHED_EXPIRATION_NOT_ADD, the operation will fail. For all
       other  expiration  values,  the  operation  will succeed by seeding the
       value for that key with a initial value to expire with the provided ex-
       piration time. The flags will be set to zero.The value is then returned
       via the  uint32_t  value  pointer  you  pass  to  it.  memcached_decre-
       ment_with_initial is only available when using the binary protocol.

       memcached_increment_by_key(),             memcached_decrement_by_key(),
       memcached_increment_with_initial_by_key(),                          and
       memcached_decrement_with_initial_by_key() are master key equivalents of
       the above.

RETURN
       A value of type memcached_return_t  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://libmemcached.org/

SEE ALSO
       memcached(1) libmemcached(3) memcached_strerror(3)

AUTHOR
       Brian Aker

COPYRIGHT
       2011-2013, Brian Aker DataDifferential, http://datadifferential.com/

1.0.18                         February 09, 2014        MEMCACHED_INCREMENT(3)

Czas wygenerowania: 0.00018 sek.

Created with the man page lookup class by Andrew Collington.
Based on a C man page viewer by Vadim Pavlov
Unicode soft-hyphen fix (as used by RedHat) by Dan Edwards
Some optimisations by Eli Argon
Caching idea and code contribution by James Richardson

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