45 lines
1.1 KiB
C++
45 lines
1.1 KiB
C++
#include "shared_string.hh"
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#include "debug.hh"
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namespace Kakoune
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{
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SharedString StringRegistry::intern(StringView str)
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{
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auto it = m_strings.find({str, SharedString::NoCopy{}});
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if (it == m_strings.end())
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{
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SharedString shared_str = str;
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it = m_strings.emplace(shared_str).first;
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}
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return *it;
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}
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void StringRegistry::purge_unused()
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{
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for (auto it = m_strings.begin(); it != m_strings.end(); )
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{
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if (it->m_storage->refcount == 1)
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it = m_strings.erase(it);
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else
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++it;
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}
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}
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void StringRegistry::debug_stats() const
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{
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write_debug("Shared Strings stats:");
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size_t total_refcount = 0;
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size_t total_size = 0;
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size_t count = m_strings.size();
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for (auto& st : m_strings)
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{
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total_refcount += st.m_storage->refcount - 1;
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total_size += (int)st.m_storage->length;
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}
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write_debug(format(" data size: {}, mean: {}", total_size, (float)total_size/count));
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write_debug(format(" refcounts: {}, mean: {}", total_refcount, (float)total_refcount/count));
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}
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}
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