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remove CCAllocCache
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4 changed files with 1 additions and 112 deletions
2
_oasis
2
_oasis
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@ -59,7 +59,7 @@ Library "containers_data"
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CCPersistentHashtbl, CCDeque, CCFQueue, CCBV, CCMixtbl,
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CCMixmap, CCRingBuffer, CCIntMap, CCPersistentArray,
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CCMixset, CCHashconsedSet, CCGraph, CCHashSet, CCBitField,
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CCHashTrie, CCWBTree, CCRAL, CCAllocCache,
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CCHashTrie, CCWBTree, CCRAL,
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CCImmutArray, CCHet, CCZipper
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BuildDepends: bytes
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# BuildDepends: bytes, bisect_ppx
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@ -70,7 +70,6 @@ such as:
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Various data structures.
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{!modules:
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CCAllocCache
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CCBitField
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CCBV
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CCCache
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@ -1,75 +0,0 @@
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(* This file is free software, part of Logtk. See file "license" for more details. *)
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(** {1 Simple Cache for Allocations} *)
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module Arr = struct
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type 'a t = {
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caches: 'a array array;
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(* 2-dim array of cached arrays. The 2-dim array is flattened into
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one dimension *)
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max_buck_size: int;
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(* number of cached arrays per length *)
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sizes: int array;
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(* number of cached arrays in each bucket *)
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}
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let create ?(buck_size=16) n =
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if n<1 then invalid_arg "AllocCache.Arr.create";
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{ max_buck_size=buck_size;
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sizes=Array.make n 0;
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caches=Array.make (n * buck_size) [||];
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}
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let make c i x =
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if i=0 then [||]
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else if i<Array.length c.sizes then (
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let bs = c.sizes.(i) in
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if bs = 0 then Array.make i x
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else (
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(* remove last array *)
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let ret = c.caches.(i * c.max_buck_size + bs-1) in
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c.sizes.(i) <- bs - 1;
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ret
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)
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) else Array.make i x
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let free c a =
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let n = Array.length a in
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if n > 0 && n < Array.length c.sizes then (
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let bs = c.sizes.(n) in
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if bs < c.max_buck_size then (
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(* store [a] *)
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c.caches.(n * c.max_buck_size + bs) <- a;
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c.sizes.(n) <- bs + 1
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)
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)
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let with_ c i x ~f =
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let a = make c i x in
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try
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let ret = f a in
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free c a;
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ret
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with e ->
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free c a;
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raise e
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end
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(*$inject
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let c = Arr.create ~buck_size:2 20
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*)
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(*$Q
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Q.small_int (fun n -> Array.length (Arr.make c n '_') = n)
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*)
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(*$T
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let a = Arr.make c 1 '_' in Array.length a = 1
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let a = Arr.make c 2 '_' in Array.length a = 2
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let a = Arr.make c 3 '_' in Array.length a = 3
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let a = Arr.make c 4 '_' in Array.length a = 4
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*)
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@ -1,35 +0,0 @@
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(* This file is free software, part of Logtk. See file "license" for more details. *)
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(** {1 Simple Cache for Allocations}
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Be very careful not to use-after-free or double-free.
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{b NOT THREAD SAFE}
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{b status: experimental}
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@since 0.15
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*)
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module Arr : sig
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type 'a t
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(** Cache for 'a arrays *)
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val create: ?buck_size:int -> int -> 'a t
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(** [create n] makes a new cache of arrays up to length [n]
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@param buck_size number of arrays cached for each array length
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@param n maximum size of arrays put in cache *)
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val make : 'a t -> int -> 'a -> 'a array
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(** [make cache i x] is like [Array.make i x],
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but might return a cached array instead of allocating one.
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{b NOTE}: if the array is already allocated then it
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will NOT be filled with [x] *)
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val free : 'a t -> 'a array -> unit
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(** Return array to the cache. The array's elements will not be GC'd *)
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val with_ : 'a t -> int -> 'a -> f:('a array -> 'b) -> 'b
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(** Combines {!make} and {!free} *)
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end
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