gb_trees

gb_trees.ex

iex(15)> tree = :gb_trees.empty                                                           
{0, nil}
iex(16)> tree2 = :gb_trees.insert("/info", [%{remote: :"boo@localhost", counter: 1}], tree)
{1, {"/info", [%{counter: 1, remote: :boo@localhost}], nil, nil}}
iex(17)> tree3 = :gb_trees.update("/info", [:gb_trees.get("/info", tree2) |%{remote: :"bar@localhost", counter: 0}], tree2)
{1,
 {"/info",
  [[%{counter: 1, remote: :boo@localhost}] |
   %{counter: 0, remote: :bar@localhost}], nil, nil}}
iex(18)> :gb_trees.get("/info", tree3)                                                                             [[%{counter: 1, remote: :boo@localhost}] |
 %{counter: 0, remote: :bar@localhost}]
iex(19)> tree3 = :gb_trees.update("/info", [%{remote: :"bar@localhost", counter: 0} | :gb_trees.get("/info", tree2)], tree2)
{1,
 {"/info",
  [%{counter: 0, remote: :bar@localhost},
   %{counter: 1, remote: :boo@localhost}], nil, nil}}
iex(20)> :gb_trees.get("/info", tree3)                                                                             [%{counter: 0, remote: :bar@localhost}, %{counter: 1, remote: :boo@localhost}]
iex(21)> :gb_trees.balance            
balance/1    
iex(21)> :gb_trees.balance
balance/1    
iex(21)> :gb_trees.balance(tree3)
{1,
 {"/info",
  [%{counter: 0, remote: :bar@localhost},
   %{counter: 1, remote: :boo@localhost}], nil, nil}}
iex(22)> :gb_trees.get("/info", tree3)
[%{counter: 0, remote: :bar@localhost}, %{counter: 1, remote: :boo@localhost}]
iex(23)> :gb_trees.largest(tree3)                                                                                  {"/info",
 [%{counter: 0, remote: :bar@localhost}, %{counter: 1, remote: :boo@localhost}]}
iex(24)> :gb_trees.              
balance/1          delete/2           delete_any/2       empty/0            
enter/3            from_orddict/1     get/2              insert/3           
is_defined/2       is_empty/1         iterator/1         iterator_from/2    
keys/1             largest/1          lookup/2           map/2              
module_info/0      module_info/1      next/1             size/1             
smallest/1         take_largest/1     take_smallest/1    to_list/1          
update/3           values/1           
iex(24)> :gb_trees.
balance/1          delete/2           delete_any/2       empty/0            
enter/3            from_orddict/1     get/2              insert/3           
is_defined/2       is_empty/1         iterator/1         iterator_from/2    
keys/1             largest/1          lookup/2           map/2              
module_info/0      module_info/1      next/1             size/1             
smallest/1         take_largest/1     take_smallest/1    to_list/1          
update/3           values/1           
iex(24)> :gb_trees.smallest tree3
{"/info",
 [%{counter: 0, remote: :bar@localhost}, %{counter: 1, remote: :boo@localhost}]}