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Reformat and cleanup.

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This commit is contained in:
Natalia Portillo
2023-10-03 21:49:17 +01:00
parent a957e741ae
commit dbc5be31a2
32 changed files with 2729 additions and 2498 deletions
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48
Aaru6.Checksums/SpamSumContext.cs
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@@ -56,7 +56,7 @@ public sealed class SpamSumContext : IChecksum
const uint HASH_INIT = 0x28021967;
const uint NUM_BLOCKHASHES = 31;
const uint SPAMSUM_LENGTH = 64;
const uint FUZZY_MAX_RESULT = (2 * SPAMSUM_LENGTH) + 20;
const uint FUZZY_MAX_RESULT = 2 * SPAMSUM_LENGTH + 20;
//"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
readonly byte[] _b64 =
@@ -77,7 +77,7 @@ public sealed class SpamSumContext : IChecksum
Bh = new BlockhashContext[NUM_BLOCKHASHES]
};
for(int i = 0; i < NUM_BLOCKHASHES; i++)
for(var i = 0; i < NUM_BLOCKHASHES; i++)
_self.Bh[i].Digest = new byte[SPAMSUM_LENGTH];
_self.Bhstart = 0;
@@ -91,6 +91,8 @@ public sealed class SpamSumContext : IChecksum
roll_init();
}
#region IChecksum Members
/// <inheritdoc />
/// <summary>Updates the hash with data.</summary>
/// <param name="data">Data buffer.</param>
@@ -99,7 +101,7 @@ public sealed class SpamSumContext : IChecksum
{
_self.TotalSize += len;
for(int i = 0; i < len; i++)
for(var i = 0; i < len; i++)
fuzzy_engine_step(data[i]);
}
@@ -121,6 +123,8 @@ public sealed class SpamSumContext : IChecksum
return CToString(result);
}
#endregion
[MethodImpl(MethodImplOptions.AggressiveInlining)]
void roll_init() => _self.Roll = new RollState
{
@@ -161,7 +165,7 @@ public sealed class SpamSumContext : IChecksum
/* A simple non-rolling hash, based on the FNV hash. */
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static uint sum_hash(byte c, uint h) => (h * HASH_PRIME) ^ c;
static uint sum_hash(byte c, uint h) => h * HASH_PRIME ^ c;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static uint SSDEEP_BS(uint index) => MIN_BLOCKSIZE << (int)index;
@@ -272,7 +276,7 @@ public sealed class SpamSumContext : IChecksum
var sb = new StringBuilder();
uint bi = _self.Bhstart;
uint h = roll_sum();
int remain = (int)(FUZZY_MAX_RESULT - 1); /* Exclude terminating '\0'. */
var remain = (int)(FUZZY_MAX_RESULT - 1); /* Exclude terminating '\0'. */
result = new byte[FUZZY_MAX_RESULT];
/* Verify that our elimination was not overeager. */
@@ -471,7 +475,7 @@ public sealed class SpamSumContext : IChecksum
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static string CToString(byte[] cString)
{
int count = 0;
var count = 0;
// ReSharper disable once LoopCanBeConvertedToQuery
// LINQ is six times slower
@@ -486,16 +490,7 @@ public sealed class SpamSumContext : IChecksum
return Encoding.ASCII.GetString(cString, 0, count);
}
struct RollState
{
public byte[] Window;
// ROLLING_WINDOW
public uint H1;
public uint H2;
public uint H3;
public uint N;
}
#region Nested type: BlockhashContext
/* A blockhash contains a signature state for a specific (implicit) blocksize.
* The blocksize is given by SSDEEP_BS(index). The h and halfh members are the
@@ -513,6 +508,10 @@ public sealed class SpamSumContext : IChecksum
public uint Dlen;
}
#endregion
#region Nested type: FuzzyState
struct FuzzyState
{
public uint Bhstart;
@@ -523,4 +522,21 @@ public sealed class SpamSumContext : IChecksum
public ulong TotalSize;
public RollState Roll;
}
#endregion
#region Nested type: RollState
struct RollState
{
public byte[] Window;
// ROLLING_WINDOW
public uint H1;
public uint H2;
public uint H3;
public uint N;
}
#endregion
}