46 lines
1.1 KiB
C++
46 lines
1.1 KiB
C++
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#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);
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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(StringView{shared_str}, shared_str.m_storage).first;
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}
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return {*it->second, it->second};
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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->second.unique())
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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.second.use_count() - 1;
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total_size += (int)st.second->length();
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}
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write_debug(" data size: " + to_string(total_size) + ", mean: " + to_string((float)total_size/count));
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write_debug(" refcounts: " + to_string(total_refcount) + ", mean: " + to_string((float)total_refcount/count));
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}
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}
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