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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "field_mergers_state.h"
#include "field_merger.h"
#include "field_merger_task.h"
#include "fusion_output_index.h"
#include <vespa/searchcommon/common/schema.h>
#include <vespa/vespalib/util/cpu_usage.h>
#include <vespa/vespalib/util/executor.h>
#include <cassert>
using vespalib::CpuUsage;
namespace search::diskindex {
FieldMergersState::FieldMergersState(const FusionOutputIndex& fusion_out_index, vespalib::Executor& executor, std::shared_ptr<IFlushToken> flush_token)
: _fusion_out_index(fusion_out_index),
_executor(executor),
_flush_token(std::move(flush_token)),
_done(_fusion_out_index.get_schema().getNumIndexFields()),
_failed(0u),
_field_mergers(_fusion_out_index.get_schema().getNumIndexFields())
{
}
FieldMergersState::~FieldMergersState()
{
wait_field_mergers_done();
}
FieldMerger&
FieldMergersState::alloc_field_merger(uint32_t id)
{
assert(id < _field_mergers.size());
auto field_merger = std::make_unique<FieldMerger>(id, _fusion_out_index, _flush_token);
auto& result = *field_merger;
assert(!_field_mergers[id]);
_field_mergers[id] = std::move(field_merger);
return result;
}
void
FieldMergersState::destroy_field_merger(FieldMerger& field_merger)
{
uint32_t id = field_merger.get_id();
assert(id < _field_mergers.size());
std::unique_ptr<FieldMerger> old_merger;
old_merger = std::move(_field_mergers[id]);
assert(old_merger.get() == &field_merger);
old_merger.reset();
_done.countDown();
}
void
FieldMergersState::field_merger_done(FieldMerger& field_merger, bool failed)
{
if (failed) {
++_failed;
}
destroy_field_merger(field_merger);
}
void
FieldMergersState::wait_field_mergers_done()
{
_done.await();
}
void
FieldMergersState::schedule_task(FieldMerger& field_merger)
{
auto task = std::make_unique<FieldMergerTask>(field_merger, *this);
auto rejected = _executor.execute(CpuUsage::wrap(std::move(task), CpuUsage::Category::COMPACT));
assert(!rejected);
}
}
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