=head1 NAME
-memcached_increment, memcached_decrement
+memcached_increment, memcached_decrement,
+memcached_increment_with_initial, memcached_decrement_with_initial - Manipulate
+counters
=head1 LIBRARY
#include <memcached.h>
- memcached_return
+ memcached_return_t
memcached_increment (memcached_st *ptr,
const char *key, size_t key_length,
unsigned int offset,
uint64_t *value);
- memcached_return
+ memcached_return_t
memcached_decrement (memcached_st *ptr,
const char *key, size_t key_length,
unsigned int 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 *master_key, size_t master_key_length,
+ const char *key, size_t key_length,
+ unsigned int offset,
+ uint64_t *value);
+
+ memcached_return_t
+ memcached_decrement_by_key (memcached_st *ptr,
+ const char *master_key, size_t master_key_length,
+ const char *key, size_t key_length,
+ unsigned int offset,
+ uint64_t *value);
+
+ memcached_return_t
+ memcached_increment_with_initial_by_key (memcached_st *ptr,
+ const char *master_key,
+ size_t master_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 (memcached_st *ptr,
+ const char *master_key,
+ size_t master_key_length,
+ const char *key,
+ size_t key_length,
+ uint64_t offset,
+ uint64_t initial,
+ time_t expiration,
+ uint64_t *value);
+
=head1 DESCRIPTION
memcached(1) servers have the ability to increment and decrement keys
the offset passed to it. The value is then returned via the unsigned int
value pointer you pass to it.
+memcached_increment_with_initial() takes a key and keylength and increments
+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 expiration time. The
+flags will be set to zero.The value is then returned via the unsigned int
+value pointer you pass to it.
+
+memcached_decrement_with_initial() takes a key and keylength and decrements
+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 expiration time. The
+flags will be set to zero.The value is then returned via the unsigned int
+value pointer you pass to it.
+
+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.
+
=head1 RETURN
-A value of type C<memcached_return> is returned.
+A value of type C<memcached_return_t> is returned.
On success that value will be C<MEMCACHED_SUCCESS>.
Use memcached_strerror() to translate this value to a printable string.
=head1 HOME
To find out more information please check:
-L<http://tangent.org/552/libmemcached.html>
+L<https://launchpad.net/libmemcached>
=head1 AUTHOR