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Copy pathdebug_points.cpp
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95 lines (78 loc) · 3.03 KB
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
#include "util/debug_points.h"
#include "common/logging.h"
#include "util/time.h"
namespace doris {
DebugPoints::DebugPoints() : _debug_points(std::make_shared<const DebugPointMap>()) {}
DebugPoints* DebugPoints::instance() {
static DebugPoints instance;
return &instance;
}
bool DebugPoints::is_enable(const std::string& name) {
return get_debug_point(name) != nullptr;
}
std::shared_ptr<DebugPoint> DebugPoints::get_debug_point(const std::string& name) {
if (!config::enable_debug_points) {
return nullptr;
}
auto map_ptr = _debug_points.load();
auto it = map_ptr->find(name);
if (it == map_ptr->end()) {
return nullptr;
}
auto debug_point = it->second;
if ((debug_point->expire_ms > 0 && MonotonicMillis() >= debug_point->expire_ms) ||
(debug_point->execute_limit > 0 &&
debug_point->execute_num.fetch_add(1, std::memory_order_relaxed) >=
debug_point->execute_limit)) {
remove(name);
return nullptr;
}
return debug_point;
}
void DebugPoints::add(const std::string& name, std::shared_ptr<DebugPoint> debug_point) {
update([&](DebugPointMap& new_points) { new_points[name] = debug_point; });
std::ostringstream oss;
oss << "{";
for (auto [key, value] : debug_point->params) {
oss << key << " : " << value << ", ";
}
oss << "}";
LOG(INFO) << "add debug point: name=" << name << ", params=" << oss.str();
}
void DebugPoints::remove(const std::string& name) {
bool exists = false;
update([&](DebugPointMap& new_points) { exists = new_points.erase(name) > 0; });
LOG(INFO) << "remove debug point: name=" << name << ", exists=" << exists;
}
void DebugPoints::update(std::function<void(DebugPointMap&)>&& handler) {
auto old_points = _debug_points.load();
while (true) {
auto new_points = std::make_shared<DebugPointMap>(*old_points);
handler(*new_points);
if (_debug_points.compare_exchange_strong(
old_points, std::static_pointer_cast<const DebugPointMap>(new_points))) {
break;
}
}
}
void DebugPoints::clear() {
_debug_points.store(std::make_shared<const DebugPointMap>());
LOG(INFO) << "clear debug points";
}
} // namespace doris