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