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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/searchlib/index/field_length_calculator.h>
#include <vespa/searchlib/memoryindex/document_inverter.h>
#include <vespa/searchlib/memoryindex/document_inverter_collection.h>
#include <vespa/searchlib/memoryindex/document_inverter_context.h>
#include <vespa/searchlib/memoryindex/field_index_remover.h>
#include <vespa/searchlib/memoryindex/field_inverter.h>
#include <vespa/searchlib/memoryindex/i_field_index_collection.h>
#include <vespa/searchlib/memoryindex/word_store.h>
#include <vespa/searchlib/test/memoryindex/mock_field_index_collection.h>
#include <vespa/searchlib/test/memoryindex/ordered_field_index_inserter_backend.h>
#include <vespa/vespalib/util/retain_guard.h>
#include <vespa/vespalib/util/sequencedtaskexecutor.h>
#include <thread>
#include <vespa/vespalib/gtest/gtest.h>
namespace search::memoryindex {
using document::Document;
using index::FieldLengthCalculator;
using index::Schema;
using vespalib::RetainGuard;
using vespalib::SequencedTaskExecutor;
using vespalib::ISequencedTaskExecutor;
VESPA_THREAD_STACK_TAG(invert_executor)
VESPA_THREAD_STACK_TAG(push_executor)
struct DocumentInverterCollectionTest : public ::testing::Test {
Schema _schema;
std::unique_ptr<ISequencedTaskExecutor> _invertThreads;
std::unique_ptr<ISequencedTaskExecutor> _pushThreads;
WordStore _word_store;
FieldIndexRemover _remover;
test::OrderedFieldIndexInserterBackend _inserter_backend;
FieldLengthCalculator _calculator;
test::MockFieldIndexCollection _fic;
DocumentInverterContext _inv_context;
DocumentInverterCollection _inv_collection;
DocumentInverterCollectionTest()
: _schema(),
_invertThreads(SequencedTaskExecutor::create(invert_executor, 4)),
_pushThreads(SequencedTaskExecutor::create(push_executor, 4)),
_word_store(),
_remover(_word_store),
_inserter_backend(),
_calculator(),
_fic(_remover, _inserter_backend, _calculator),
_inv_context(_schema, *_invertThreads, *_pushThreads, _fic),
_inv_collection(_inv_context, 10)
{
}
};
TEST_F(DocumentInverterCollectionTest, idle_inverter_is_reused)
{
auto& active = _inv_collection.get_active_inverter();
for (uint32_t i = 0; i < 4; ++i) {
_inv_collection.switch_active_inverter();
EXPECT_EQ(&active, &_inv_collection.get_active_inverter());
}
EXPECT_EQ(1u, _inv_collection.get_num_inverters());
}
TEST_F(DocumentInverterCollectionTest, busy_inverter_is_not_reused)
{
auto& active = _inv_collection.get_active_inverter();
auto retain = std::make_shared<RetainGuard>(active.get_ref_count());
_inv_collection.switch_active_inverter();
EXPECT_NE(&active, &_inv_collection.get_active_inverter());
EXPECT_EQ(2u, _inv_collection.get_num_inverters());
}
TEST_F(DocumentInverterCollectionTest, number_of_inverters_is_limited_by_max)
{
for (uint32_t i = 0; i < 50; ++i) {
auto& active = _inv_collection.get_active_inverter();
auto retain = std::make_shared<RetainGuard>(active.get_ref_count());
_pushThreads->execute(i, [retain(std::move(retain))] () { std::this_thread::sleep_for(10ms); });
_inv_collection.switch_active_inverter();
}
EXPECT_LE(4u, _inv_collection.get_num_inverters());
EXPECT_GE(_inv_collection.get_max_inverters(), _inv_collection.get_num_inverters());
}
}
GTEST_MAIN_RUN_ALL_TESTS()
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