75 lines
1.7 KiB
C#
75 lines
1.7 KiB
C#
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using System;
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using System.Text;
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//NOTE: cache for less GC operations
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public static class TempBuffer
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{
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static byte[][] tmp_bufs = new byte[][] { new byte[512], new byte[512], new byte[512] };
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static int tmp_buf_counter = 0;
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static public int stats_max_buf = 0;
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static public byte[] Get(int size)
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{
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var buf = Get();
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if(size > buf.Length)
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{
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Array.Resize(ref buf, size);
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Update(buf);
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}
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return buf;
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}
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static byte[] Get()
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{
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var buf = tmp_bufs[tmp_buf_counter % 3];
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++tmp_buf_counter;
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return buf;
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}
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static void Update(byte[] buf)
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{
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var idx = (tmp_buf_counter-1) % 3;
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//for debug
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//var curr = tmp_bufs[idx];
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//if(curr != buf)
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// Log.Debug(curr.Length + " VS " + buf.Length);
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tmp_bufs[idx] = buf;
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stats_max_buf = stats_max_buf < buf.Length ? buf.Length : stats_max_buf;
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}
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static public void Cleanup()
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{
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for(int i = 0; i < tmp_bufs.Length; ++i)
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System.Array.Clear(tmp_bufs[i], 0, tmp_bufs[i].Length);
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}
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}
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public static class TempStringBuffer
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{
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static public StringBuilder[] tmp_bufs = new StringBuilder[] { new StringBuilder(), new StringBuilder() };
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static int tmp_buf_counter = 0;
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static public StringBuilder Get()
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{
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var buf = tmp_bufs[tmp_buf_counter % 2];
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buf.Length = 0;
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++tmp_buf_counter;
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return buf;
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}
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static public string Concat(string s1, string s2)
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{
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return Get().Append(s1).Append(s2).ToString();
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}
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static public string Concat(string s1, string s2, string s3)
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{
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return Get().Append(s1).Append(s2).Append(s3).ToString();
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}
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static public string Concat(string s1, string s2, string s3, string s4)
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{
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return Get().Append(s1).Append(s2).Append(s3).Append(s4).ToString();
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}
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}
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