Switch to 32 slots
This commit is contained in:
Martin Sumner
parent
5e6541dddb
commit
7af6a3ba00
1 changed files with 274 additions and 9 deletions
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@ -16,8 +16,8 @@
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check_hash/2
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]).
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-define(BLOOM_SIZE_BYTES, 1024).
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-define(INTEGER_SIZE, 8192).
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-define(BLOOM_SIZE_BYTES, 512).
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-define(INTEGER_SIZE, 4096).
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-define(BAND_MASK, ?INTEGER_SIZE - 1).
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@ -32,15 +32,22 @@ create_bloom(HashList) ->
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case length(HashList) of
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0 ->
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<<>>;
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L when L > 16384 ->
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add_hashlist(HashList,
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32,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0);
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L when L > 8192 ->
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add_hashlist(HashList,
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15,
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16,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0);
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L when L > 4084 ->
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add_hashlist(HashList, 3, 0, 0, 0, 0);
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add_hashlist(HashList, 4, 0, 0, 0, 0);
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_ ->
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add_hashlist(HashList, 1, 0, 0)
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add_hashlist(HashList, 2, 0, 0)
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end.
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@ -50,7 +57,7 @@ create_bloom(HashList) ->
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check_hash(_Hash, <<>>) ->
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false;
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check_hash({_SegHash, Hash}, BloomBin) ->
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SlotSplit = (byte_size(BloomBin) div ?BLOOM_SIZE_BYTES) - 1,
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SlotSplit = byte_size(BloomBin) div ?BLOOM_SIZE_BYTES,
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{Slot, Hashes} = split_hash(Hash, SlotSplit),
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Mask = get_mask(Hashes),
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Pos = Slot * ?BLOOM_SIZE_BYTES,
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@ -68,9 +75,9 @@ check_hash({_SegHash, Hash}, BloomBin) ->
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%%%============================================================================
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split_hash(Hash, SlotSplit) ->
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Slot = Hash band SlotSplit,
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H0 = (Hash bsr 4) band (?BAND_MASK),
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H1 = (Hash bsr 17) band (?BAND_MASK),
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Slot = (Hash band 255) rem SlotSplit,
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H0 = (Hash bsr 8) band (?BAND_MASK),
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H1 = (Hash bsr 20) band (?BAND_MASK),
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{Slot, [H0, H1]}.
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get_mask([H0, H1]) ->
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@ -212,6 +219,264 @@ add_hashlist([{_SegHash, TopHash}|T],
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end.
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add_hashlist([], _S, S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31) ->
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IntSize = ?INTEGER_SIZE,
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<<S0:IntSize/integer, S1:IntSize/integer,
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S2:IntSize/integer, S3:IntSize/integer,
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S4:IntSize/integer, S5:IntSize/integer,
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S6:IntSize/integer, S7:IntSize/integer,
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S8:IntSize/integer, S9:IntSize/integer,
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S10:IntSize/integer, S11:IntSize/integer,
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S12:IntSize/integer, S13:IntSize/integer,
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S14:IntSize/integer, S15:IntSize/integer,
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S16:IntSize/integer, S17:IntSize/integer,
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S18:IntSize/integer, S19:IntSize/integer,
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S20:IntSize/integer, S21:IntSize/integer,
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S22:IntSize/integer, S23:IntSize/integer,
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S24:IntSize/integer, S25:IntSize/integer,
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S26:IntSize/integer, S27:IntSize/integer,
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S28:IntSize/integer, S29:IntSize/integer,
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S30:IntSize/integer, S31:IntSize/integer>>;
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add_hashlist([{_SegHash, TopHash}|T],
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31) ->
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{Slot, Hashes} = split_hash(TopHash, SlotSplit),
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Mask = get_mask(Hashes),
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case Slot of
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0 ->
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add_hashlist(T,
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SlotSplit,
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S0 bor Mask, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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1 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1 bor Mask, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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2 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2 bor Mask, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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3 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3 bor Mask, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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4 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4 bor Mask, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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5 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5 bor Mask, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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6 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6 bor Mask, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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7 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7 bor Mask,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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8 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8 bor Mask, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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9 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9 bor Mask, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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10 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10 bor Mask, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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11 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11 bor Mask, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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12 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12 bor Mask, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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13 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13 bor Mask, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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14 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14 bor Mask, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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15 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15 bor Mask,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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16 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16 bor Mask, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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17 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17 bor Mask, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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18 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18 bor Mask, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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19 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19 bor Mask, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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20 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20 bor Mask, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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21 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21 bor Mask, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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22 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22 bor Mask, S23,
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S24, S25, S26, S27, S28, S29, S30, S31);
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23 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23 bor Mask,
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S24, S25, S26, S27, S28, S29, S30, S31);
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24 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24 bor Mask, S25, S26, S27, S28, S29, S30, S31);
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25 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25 bor Mask, S26, S27, S28, S29, S30, S31);
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26 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26 bor Mask, S27, S28, S29, S30, S31);
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27 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27 bor Mask, S28, S29, S30, S31);
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28 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28 bor Mask, S29, S30, S31);
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29 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29 bor Mask, S30, S31);
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30 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30 bor Mask, S31);
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31 ->
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add_hashlist(T,
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SlotSplit,
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S0, S1, S2, S3, S4, S5, S6, S7,
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S8, S9, S10, S11, S12, S13, S14, S15,
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S16, S17, S18, S19, S20, S21, S22, S23,
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S24, S25, S26, S27, S28, S29, S30, S31 bor Mask)
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end.
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%%%============================================================================
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%%% Test
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%%%============================================================================
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