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⚡ optimizing GetLogsRange

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EntireTwix 2023-01-12 16:29:13 -08:00
parent af551ef8b4
commit f2da8cdbc2
1 changed files with 68 additions and 21 deletions
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89
src/log.cpp
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@ -82,40 +82,87 @@ std::string Log::GetLogsRange(size_t start, size_t length) noexcept
if (start > data.size()) { return "[]"; }
if (start == 0 && length == MAX_LOG_SIZE) { return log_snapshot_v2; }
if (log_flag_v2.GetChangeState() && data.size()) { GetLogsV2(); }
if ((start + length + 1) >= data.size()) { length = data.size() - start; }
size_t log_index_n = 0, i = 0;
while(i < log_snapshot_v2.size())
size_t log_index_n, i;
if (start < (0.5 * MAX_LOG_SIZE))
{
if (log_index_n == start)
{
log_index_n = i;
break;
}
i += (41 + min_name_size);
while (log_snapshot_v2[i] != ',') { ++i; }
++log_index_n;
}
size_t log_index_m = log_snapshot_v2.size() - log_index_n;
if ((start + length + 1) != data.size())
{
log_index_m = 0;
// std::cout << "a\n";
i = 0;
log_index_n = 0;
while(i < log_snapshot_v2.size())
{
if (log_index_m == length)
if (log_index_n == start)
{
log_index_m = i + 1;
log_index_n = i;
break;
}
i += (41 + min_name_size);
while (log_snapshot_v2[i] != ',') { ++i; }
++log_index_m;
++log_index_n;
}
}
else
{
// std::cout << "b\n";
i = log_snapshot_v2.size();
log_index_n = data.size();
while(i --> 0)
{
if (log_index_n == start)
{
log_index_n = i + 1;
break;
}
i -= (41 + min_name_size);
while (log_snapshot_v2[i] != ',') { --i; }
--log_index_n;
}
}
std::string res(log_snapshot_v2.substr(log_index_n, log_index_m - log_index_n));
size_t log_index_m = std::string::npos;
if ((start + length) < data.size())
{
if (length < (0.5 * MAX_LOG_SIZE))
{
// std::cout << "c\n";
log_index_m = 0;
while(i < log_snapshot_v2.size())
{
if (log_index_m == length)
{
log_index_m = i + 1;
break;
}
i += (41 + min_name_size);
while (log_snapshot_v2[i] != ',') { ++i; }
++log_index_m;
}
}
else
{
// std::cout << "d\n";
i = log_snapshot_v2.size();
log_index_m = data.size();
while(i --> 0)
{
if (log_index_m == length)
{
log_index_m = i + 1;
break;
}
i -= (41 + min_name_size);
while (log_snapshot_v2[i] != ',') { --i; }
--log_index_m;
}
}
log_index_m -= log_index_n;
}
std::string res(log_snapshot_v2.substr(log_index_n, log_index_m));
res[0] = '[';
res[log_index_m - log_index_n - 1] = ']';
res[res.size() - 1] = ']';
// std::cout << res << '\n';
return res;
}