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rgw/rgw_usage.cc use empty() to check for emptiness
Use !empty() instead of 'size()' to check for emptiness for performance reasons. Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
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@ -14,7 +14,7 @@ static void dump_usage_categories_info(Formatter *formatter, const rgw_usage_log
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formatter->open_array_section("categories");
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map<string, rgw_usage_data>::const_iterator uiter;
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for (uiter = entry.usage_map.begin(); uiter != entry.usage_map.end(); ++uiter) {
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if (categories && categories->size() && !categories->count(uiter->first))
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if (categories && !categories->empty() && !categories->count(uiter->first))
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continue;
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const rgw_usage_data& usage = uiter->second;
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formatter->open_object_section("entry");
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