/// <summary>
/// このメソッドはposition, lengthを触らないので、seekの調整は呼びだし元が責任をもって行なう事。
/// </summary>
unsafe public static void Memcpy(byte [] dstBuf, AmByteArray srcBuf, int size)
{
fixed(byte *dst = &dstBuf[0])
{
fixed(byte *src = &srcBuf.data[srcBuf.position])
{
for (int idx = 0; idx < size; ++idx)
{
dst[idx] = src[idx];
}
}
}
}
/// <summary>
/// このメソッドはposition, lengthを触らないので、seekの調整は呼びだし元が責任をもって行なう事。
/// </summary>
unsafe public static int Memcmp(AmByteArray s1, AmByteArray s2, int n)
{
int ret = 0;
fixed(byte *sa = &s1.data[s1.position])
{
fixed(byte *sb = &s2.data[s2.position])
{
for (int idx = 0; idx < n; ++idx)
{
if (sa[idx] != sb[idx])
{
ret = -1; break;
}
}
}
}
return(ret);
}
// @todo
//public void writeUTFBytes(string value){}
unsafe public void writeBytes(AmByteArray bytes, uint _offset = uint.MaxValue, uint _length = 0)
{
int valueOffset = (_offset != uint.MaxValue) ? (int)_offset : (int)bytes.position;
int valueLen = (_length != 0) ? (int)_length : (int)(bytes.length - valueOffset);
byte [] valueBytes = bytes.data;
fixed(byte *dst = &m_buf[position])
{
fixed(byte *src = &valueBytes[valueOffset])
{
for (int idx = 0; idx < valueLen; ++idx)
{
dst[idx] = src[idx];
}
position = position + (uint)valueLen;
// 注意：WriteのSoruceとなった方のByteArrayのPositionは変わらない（readと微妙に違うので注意）
}
}
}
unsafe public void readBytes(AmByteArray bytes, uint _offset = uint.MaxValue, uint _length = 0)
{
int valueOffset = (_offset != uint.MaxValue) ? (int)_offset : (int)bytes.position;
int valueLen = (_length != 0) ? (int)_length : (int)bytesAvailable;
byte [] valueBytes = bytes.data;
fixed(byte *dst = &valueBytes[valueOffset])
{
fixed(byte *src = &m_buf[position])
{
for (int idx = 0; idx < valueLen; ++idx)
{
dst[idx] = src[idx];
}
bytes.position = bytes.position + (uint)valueLen;
// 読込み元のpositionも変わる
position = position + (uint)valueLen;
}
}
}
// 省略したら、配列の長さをそのまま渡す
public static string HexDump(AmByteArray src, int length)
{
return(HexDump(src.data, length));
}