Support for incr/decr operations

.gitignore

@@ -0,0 +1,4 @@
+out
+.idea
+ebin
+*.iml

LICENSE.txt

@@ -0,0 +1,9 @@
+Copyright (c) 2009 Joe Williams
+Copyright (c) 2009 Nick Gerakines
+Copyright (c) 2010 Zabrane Mikael
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

NOTICES

@@ -6,3 +6,5 @@ Contributors and Copyright holders:
 
  * Copyright 2009, Joe Williams <[email protected]>
  * Copyright 2009, Nick Gerakines <[email protected]>
+ * Copyright 2010, Zabrane Mikael <[email protected]>
+ * Copyright 2012, Jeremy D. Acord <[email protected]>m

README

@@ -37,16 +37,18 @@ This code is available as Open Source Software under the MIT license.
 
 
 Features:
-* Support for stats, version, getkey, getskey, delete, set, add, replace, cas, flushall, verbosity
+* Support for stats, version, getkey, getskey, delete, set, add, replace, cas, flushall, verbosity, incr and decr (with specially set "counter" keys)
 
 Notes:
 * Uses term_to_binary and binary_to_term to serialize/deserialize Erlang terms before sending/receiving them. This allows for native Erlang terms to be returned from memcached but doesn't play well using other languages after setting values with merle or using merle to get values set by other languages.
+* getkey and getskey currently don't work on keys initialized with addcounter/1. The binary data you get back won't be a serialized erlang integer, and so the implicity binary_to_term done by getkey and getskey provokes disaster.
 
 Merle Based Projects:
 
-http://github.com/cstar/merle/tree/master
-http://github.com/issuu/merle/tree/master
-http://github.com/0lvin/merle/tree/master
+http://github.com/cstar/merle
+http://github.com/issuu/merle
+http://github.com/0lvin/merle
+http://github.com/ppolv/merle
 
 Usage:
 
@@ -103,3 +105,23 @@ ok
  "STAT evictions 0","STAT bytes_read 216",
  "STAT bytes_written 468","STAT limit_maxbytes 67108864",
  "STAT threads 1","END"]
+
+> merle:addcounter("my_counter").
+ok
+> merle:incr("my_counter",0).
+{ok,0}
+> merle:incr("my_counter",12).
+{ok,12}
+> merle:addcounter("my_counter").
+ok
+> merle:incr("my_counter",12).
+{ok,24}
+> merle:decr("my_counter",30).
+{ok,0}
+> merle:incr("nonexistent_counter",0).
+not_found
+> merle:delete("my_counter").
+ok
+> merle:delete("my_counter").
+not_found
+