Implement S/G IO for non-batched sends and eliminate more data copies (#2867)
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b93756a804
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81c6e61594
5 changed files with 76 additions and 63 deletions
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@ -1535,12 +1535,19 @@ namespace platf {
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msg.namelen = sizeof(taddr_v4);
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}
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WSABUF buf;
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buf.buf = (char *) send_info.buffer;
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buf.len = send_info.size;
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WSABUF bufs[2];
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DWORD bufcount = 0;
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if (send_info.header) {
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bufs[bufcount].buf = (char *) send_info.header;
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bufs[bufcount].len = send_info.header_size;
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bufcount++;
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}
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bufs[bufcount].buf = (char *) send_info.payload;
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bufs[bufcount].len = send_info.payload_size;
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bufcount++;
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msg.lpBuffers = &buf;
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msg.dwBufferCount = 1;
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msg.lpBuffers = bufs;
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msg.dwBufferCount = bufcount;
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msg.dwFlags = 0;
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char cmbuf[std::max(WSA_CMSG_SPACE(sizeof(IN6_PKTINFO)), WSA_CMSG_SPACE(sizeof(IN_PKTINFO)))] = {};
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