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type (!'a : value_or_null) t : immutable_data with 'a @@ contended portable
external make
: ('a : value_or_null).
'a @ contended once portable unique -> ('a t[@local_opt]) @ unique
@@ portable
= "%makemutable"
external get
: ('a : value_or_null).
'a t @ local unique -> 'a @ contended once portable unique
@@ portable
= "%atomic_load"
external set
: ('a : value_or_null).
'a t @ local -> 'a @ contended once portable unique -> unit
@@ portable
= "%atomic_set"
external exchange
: ('a : value_or_null).
'a t @ local
-> 'a @ contended once portable unique
-> 'a @ contended once portable unique
@@ portable
= "%atomic_exchange"
external compare_and_set
: ('a : value_or_null).
'a t @ local
-> if_phys_equal_to:'a @ contended
-> replace_with:'a @ contended once portable unique
-> Basement.Compare_failed_or_set_here.t
@@ portable
= "%atomic_cas"