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Change to more efficient allocation strategy in byte_stream

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This commit is contained in:
Lee Clagett 2020-10-13 15:10:54 +00:00
parent 83f1d863bd
commit 08eb0949f3
3 changed files with 58 additions and 61 deletions
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11
contrib/epee/src/byte_stream.cpp
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@ -34,6 +34,11 @@
#include <iostream>
namespace
{
constexpr const std::size_t minimum_increase = 4096;
}
namespace epee
{
void byte_stream::overflow(const std::size_t requested)
@ -46,7 +51,7 @@ namespace epee
const std::size_t len = size();
const std::size_t cap = capacity();
const std::size_t increase = std::max(need, increase_size());
const std::size_t increase = std::max(std::max(need, cap), minimum_increase);
next_write_ = nullptr;
end_ = nullptr;
@ -62,8 +67,7 @@ namespace epee
byte_stream::byte_stream(byte_stream&& rhs) noexcept
: buffer_(std::move(rhs.buffer_)),
next_write_(rhs.next_write_),
end_(rhs.end_),
increase_size_(rhs.increase_size_)
end_(rhs.end_)
{
rhs.next_write_ = nullptr;
rhs.end_ = nullptr;
@ -76,7 +80,6 @@ namespace epee
buffer_ = std::move(rhs.buffer_);
next_write_ = rhs.next_write_;
end_ = rhs.end_;
increase_size_ = rhs.increase_size_;
rhs.next_write_ = nullptr;
rhs.end_ = nullptr;
}