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#include "Progress.h"
#include <IO/ReadBuffer.h>
#include <IO/WriteBuffer.h>
#include <IO/ReadHelpers.h>
#include <IO/WriteHelpers.h>
#include <Core/ProtocolDefines.h>
namespace DB
{
namespace
{
UInt64 getApproxTotalRowsToRead(UInt64 read_rows, UInt64 read_bytes, UInt64 total_bytes_to_read)
{
if (!read_rows || !read_bytes)
return 0;
auto bytes_per_row = std::ceil(static_cast<double>(read_bytes) / read_rows);
return static_cast<UInt64>(std::ceil(static_cast<double>(total_bytes_to_read) / bytes_per_row));
}
}
void ProgressValues::read(ReadBuffer & in, UInt64 server_revision)
{
readVarUInt(read_rows, in);
readVarUInt(read_bytes, in);
readVarUInt(total_rows_to_read, in);
if (server_revision >= DBMS_MIN_PROTOCOL_VERSION_WITH_TOTAL_BYTES_IN_PROGRESS)
{
readVarUInt(total_bytes_to_read, in);
}
if (server_revision >= DBMS_MIN_REVISION_WITH_CLIENT_WRITE_INFO)
{
readVarUInt(written_rows, in);
readVarUInt(written_bytes, in);
}
if (server_revision >= DBMS_MIN_PROTOCOL_VERSION_WITH_SERVER_QUERY_TIME_IN_PROGRESS)
{
readVarUInt(elapsed_ns, in);
}
}
void ProgressValues::write(WriteBuffer & out, UInt64 client_revision) const
{
writeVarUInt(read_rows, out);
writeVarUInt(read_bytes, out);
/// In new TCP protocol we can send total_bytes_to_read without total_rows_to_read.
/// If client doesn't support total_bytes_to_read, send approx total_rows_to_read
/// to indicate at least approx progress.
if (client_revision < DBMS_MIN_PROTOCOL_VERSION_WITH_TOTAL_BYTES_IN_PROGRESS && total_bytes_to_read && !total_rows_to_read)
writeVarUInt(getApproxTotalRowsToRead(read_rows, read_bytes, total_bytes_to_read), out);
else
writeVarUInt(total_rows_to_read, out);
if (client_revision >= DBMS_MIN_PROTOCOL_VERSION_WITH_TOTAL_BYTES_IN_PROGRESS)
{
writeVarUInt(total_bytes_to_read, out);
}
if (client_revision >= DBMS_MIN_REVISION_WITH_CLIENT_WRITE_INFO)
{
writeVarUInt(written_rows, out);
writeVarUInt(written_bytes, out);
}
if (client_revision >= DBMS_MIN_PROTOCOL_VERSION_WITH_SERVER_QUERY_TIME_IN_PROGRESS)
{
writeVarUInt(elapsed_ns, out);
}
}
void ProgressValues::writeJSON(WriteBuffer & out) const
{
/// Numbers are written in double quotes (as strings) to avoid loss of precision
/// of 64-bit integers after interpretation by JavaScript.
writeCString("{", out);
writeCString("\"read_rows\":\"", out);
writeText(read_rows, out);
writeCString("\",\"read_bytes\":\"", out);
writeText(read_bytes, out);
writeCString("\",\"written_rows\":\"", out);
writeText(written_rows, out);
writeCString("\",\"written_bytes\":\"", out);
writeText(written_bytes, out);
writeCString("\",\"total_rows_to_read\":\"", out);
writeText(total_rows_to_read, out);
writeCString("\",\"result_rows\":\"", out);
writeText(result_rows, out);
writeCString("\",\"result_bytes\":\"", out);
writeText(result_bytes, out);
writeCString("\"", out);
writeCString("}", out);
}
bool Progress::incrementPiecewiseAtomically(const Progress & rhs)
{
read_rows += rhs.read_rows;
read_bytes += rhs.read_bytes;
total_rows_to_read += rhs.total_rows_to_read;
total_bytes_to_read += rhs.total_bytes_to_read;
written_rows += rhs.written_rows;
written_bytes += rhs.written_bytes;
result_rows += rhs.result_rows;
result_bytes += rhs.result_bytes;
elapsed_ns += rhs.elapsed_ns;
return rhs.read_rows || rhs.written_rows;
}
void Progress::reset()
{
read_rows = 0;
read_bytes = 0;
total_rows_to_read = 0;
total_bytes_to_read = 0;
written_rows = 0;
written_bytes = 0;
result_rows = 0;
result_bytes = 0;
elapsed_ns = 0;
}
ProgressValues Progress::getValues() const
{
ProgressValues res;
res.read_rows = read_rows.load(std::memory_order_relaxed);
res.read_bytes = read_bytes.load(std::memory_order_relaxed);
res.total_rows_to_read = total_rows_to_read.load(std::memory_order_relaxed);
res.total_bytes_to_read = total_bytes_to_read.load(std::memory_order_relaxed);
res.written_rows = written_rows.load(std::memory_order_relaxed);
res.written_bytes = written_bytes.load(std::memory_order_relaxed);
res.result_rows = result_rows.load(std::memory_order_relaxed);
res.result_bytes = result_bytes.load(std::memory_order_relaxed);
res.elapsed_ns = elapsed_ns.load(std::memory_order_relaxed);
return res;
}
ProgressValues Progress::fetchValuesAndResetPiecewiseAtomically()
{
ProgressValues res;
res.read_rows = read_rows.fetch_and(0);
res.read_bytes = read_bytes.fetch_and(0);
res.total_rows_to_read = total_rows_to_read.fetch_and(0);
res.total_bytes_to_read = total_bytes_to_read.fetch_and(0);
res.written_rows = written_rows.fetch_and(0);
res.written_bytes = written_bytes.fetch_and(0);
res.result_rows = result_rows.fetch_and(0);
res.result_bytes = result_bytes.fetch_and(0);
res.elapsed_ns = elapsed_ns.fetch_and(0);
return res;
}
Progress Progress::fetchAndResetPiecewiseAtomically()
{
Progress res;
res.read_rows = read_rows.fetch_and(0);
res.read_bytes = read_bytes.fetch_and(0);
res.total_rows_to_read = total_rows_to_read.fetch_and(0);
res.total_bytes_to_read = total_bytes_to_read.fetch_and(0);
res.written_rows = written_rows.fetch_and(0);
res.written_bytes = written_bytes.fetch_and(0);
res.result_rows = result_rows.fetch_and(0);
res.result_bytes = result_bytes.fetch_and(0);
res.elapsed_ns = elapsed_ns.fetch_and(0);
return res;
}
Progress & Progress::operator=(Progress && other) noexcept
{
read_rows = other.read_rows.load(std::memory_order_relaxed);
read_bytes = other.read_bytes.load(std::memory_order_relaxed);
total_rows_to_read = other.total_rows_to_read.load(std::memory_order_relaxed);
total_bytes_to_read = other.total_bytes_to_read.load(std::memory_order_relaxed);
written_rows = other.written_rows.load(std::memory_order_relaxed);
written_bytes = other.written_bytes.load(std::memory_order_relaxed);
result_rows = other.result_rows.load(std::memory_order_relaxed);
result_bytes = other.result_bytes.load(std::memory_order_relaxed);
elapsed_ns = other.elapsed_ns.load(std::memory_order_relaxed);
return *this;
}
void Progress::read(ReadBuffer & in, UInt64 server_revision)
{
ProgressValues values;
values.read(in, server_revision);
read_rows.store(values.read_rows, std::memory_order_relaxed);
read_bytes.store(values.read_bytes, std::memory_order_relaxed);
total_rows_to_read.store(values.total_rows_to_read, std::memory_order_relaxed);
total_bytes_to_read.store(values.total_bytes_to_read, std::memory_order_relaxed);
written_rows.store(values.written_rows, std::memory_order_relaxed);
written_bytes.store(values.written_bytes, std::memory_order_relaxed);
elapsed_ns.store(values.elapsed_ns, std::memory_order_relaxed);
}
void Progress::write(WriteBuffer & out, UInt64 client_revision) const
{
getValues().write(out, client_revision);
}
void Progress::writeJSON(WriteBuffer & out) const
{
getValues().writeJSON(out);
}
}
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