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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "handlerecorder.h"
#include <vespa/searchlib/fef/matchdata.h>
#include <vespa/vespalib/stllike/asciistream.h>
#include <algorithm>
#include <cassert>
#include <vespa/vespalib/stllike/hash_map.hpp>
#include <vespa/vespalib/stllike/hash_map_equal.hpp>
#include <vespa/vespalib/util/array_equal.hpp>
using search::fef::MatchData;
using search::fef::MatchDataDetails;
using search::fef::TermFieldHandle;
namespace proton::matching {
#ifdef __PIC__
#define TLS_LINKAGE __attribute__((visibility("hidden"), tls_model("initial-exec")))
#else
#define TLS_LINKAGE __attribute__((visibility("hidden"), tls_model("local-exec")))
#endif
namespace {
__thread HandleRecorder * _T_recorder TLS_LINKAGE = nullptr;
__thread bool _T_assert_all_handles_are_registered = false;
}
HandleRecorder::HandleRecorder() :
_handles()
{
}
namespace {
vespalib::string
handles_to_string(const HandleRecorder::HandleMap& handles, MatchDataDetails requested_details)
{
vespalib::asciistream os;
std::vector<TermFieldHandle> sorted;
for (const auto &handle : handles) {
if ((static_cast<int>(handle.second) & static_cast<int>(requested_details)) != 0) {
sorted.push_back(handle.first);
}
}
std::sort(sorted.begin(), sorted.end());
if ( !sorted.empty() ) {
os << sorted[0];
for (size_t i(1); i < sorted.size(); i++) {
os << ',' << sorted[i];
}
}
return os.str();
}
}
vespalib::string
HandleRecorder::to_string() const
{
vespalib::asciistream os;
os << "normal: [" << handles_to_string(_handles, MatchDataDetails::Normal) << "], ";
os << "interleaved: [" << handles_to_string(_handles, MatchDataDetails::Interleaved) << "]";
return os.str();
}
HandleRecorder::Binder::Binder(HandleRecorder & recorder)
{
_T_recorder = & recorder;
}
HandleRecorder::Asserter::Asserter()
{
_T_assert_all_handles_are_registered = true;
}
HandleRecorder::Asserter::~Asserter()
{
_T_assert_all_handles_are_registered = false;
}
HandleRecorder::~HandleRecorder()
{
}
HandleRecorder::Binder::~Binder()
{
_T_recorder = nullptr;
}
void
HandleRecorder::register_handle(TermFieldHandle handle,
MatchDataDetails requested_details)
{
// There should be no registration of handles that is not recorded.
// That will lead to issues later on.
if (_T_recorder != nullptr) {
_T_recorder->add(handle, requested_details);
} else if (_T_assert_all_handles_are_registered) {
assert(_T_recorder != nullptr);
}
}
void
HandleRecorder::add(TermFieldHandle handle,
MatchDataDetails requested_details)
{
if (requested_details == MatchDataDetails::Normal ||
requested_details == MatchDataDetails::Interleaved) {
_handles[handle] = static_cast<MatchDataDetails>(static_cast<int>(_handles[handle]) | static_cast<int>(requested_details));
} else {
abort();
}
}
void
HandleRecorder::tag_match_data(MatchData &match_data)
{
for (TermFieldHandle handle = 0; handle < match_data.getNumTermFields(); ++handle) {
auto &tfmd = *match_data.resolveTermField(handle);
auto recorded = _handles.find(handle);
if (recorded == _handles.end()) {
tfmd.tagAsNotNeeded();
} else {
tfmd.setNeedNormalFeatures((static_cast<int>(recorded->second) & static_cast<int>(MatchDataDetails::Normal)) != 0);
tfmd.setNeedInterleavedFeatures((static_cast<int>(recorded->second) & static_cast<int>(MatchDataDetails::Interleaved)) != 0);
}
}
}
}
VESPALIB_HASH_MAP_INSTANTIATE(search::fef::TermFieldHandle, search::fef::MatchDataDetails);
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