| /* |
| * 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. |
| */ |
| |
| #pragma once |
| |
| #ifndef GEODE_INTERNAL_UTILS_H_ |
| #define GEODE_INTERNAL_UTILS_H_ |
| |
| #include <chrono> |
| #include <memory> |
| #include <random> |
| #include <string> |
| #include <typeinfo> |
| #include <unordered_set> |
| |
| #include <geode/CacheableString.hpp> |
| #include <geode/DataOutput.hpp> |
| #include <geode/ExceptionTypes.hpp> |
| #include <geode/SystemProperties.hpp> |
| #include <geode/internal/geode_base.hpp> |
| #include <geode/internal/geode_globals.hpp> |
| |
| #include "DistributedSystem.hpp" |
| #include "statistics/Statistics.hpp" |
| #include "util/Log.hpp" |
| |
| #ifdef __GNUC__ |
| extern "C" { |
| #include <cxxabi.h> |
| } |
| #endif |
| |
| namespace apache { |
| namespace geode { |
| namespace client { |
| class APACHE_GEODE_EXPORT Utils { |
| /** |
| * utilities |
| * |
| */ |
| public: |
| /** |
| * Get the value of an environment variable. |
| * On windows the maximum length of value supported is 8191. |
| */ |
| static std::string getEnv(const char* varName); |
| static int32_t getLastError(); |
| |
| #ifdef __GNUC__ |
| inline static char* _gnuDemangledName(const char* typeIdName, size_t& len) { |
| int status; |
| char* demangledName = |
| abi::__cxa_demangle(typeIdName, nullptr, &len, &status); |
| if (status == 0 && demangledName != nullptr) { |
| return demangledName; |
| } |
| return nullptr; |
| } |
| #endif |
| |
| inline static void demangleTypeName(const char* typeIdName, |
| std::string& str) { |
| #ifdef __GNUC__ |
| size_t len; |
| char* demangledName = _gnuDemangledName(typeIdName, len); |
| if (demangledName != nullptr) { |
| str.append(demangledName, len); |
| free(demangledName); |
| return; |
| } |
| #endif |
| str.append(typeIdName); |
| } |
| |
| inline static std::string demangleTypeName(const char* typeIdName) { |
| #ifdef __GNUC__ |
| size_t len; |
| char* demangledName = _gnuDemangledName(typeIdName, len); |
| if (demangledName != nullptr) { |
| auto str = std::string(demangledName, len); |
| free(demangledName); |
| return str; |
| } |
| #endif |
| return std::string(typeIdName); |
| } |
| |
| /** |
| * The only operations that is well defined on the result is "asChar". |
| */ |
| inline static std::string nullSafeToString( |
| const std::shared_ptr<CacheableKey>& key) { |
| std::string result; |
| if (key) { |
| result = key->toString(); |
| } else { |
| result = "(null)"; |
| } |
| return result; |
| } |
| |
| static std::string nullSafeToString(const std::shared_ptr<Cacheable>& val) { |
| std::string result; |
| if (val) { |
| if (const auto key = std::dynamic_pointer_cast<CacheableKey>(val)) { |
| result = nullSafeToString(key); |
| } else { |
| return result = val->toString(); |
| } |
| } else { |
| result = "(null)"; |
| } |
| |
| return result; |
| } |
| |
| static int64_t startStatOpTime(); |
| |
| // Check objectSize() implementation return value and log a warning at most |
| // once. |
| inline static size_t checkAndGetObjectSize( |
| const std::shared_ptr<Cacheable>& theObject) { |
| auto objectSize = theObject->objectSize(); |
| static bool youHaveBeenWarned = false; |
| if (objectSize == 0 && !youHaveBeenWarned) { |
| LOGWARN( |
| "Object size for Heap LRU returned by %s is 0 (zero). Even for empty " |
| "objects the size returned should be at least one (1 byte).", |
| theObject->toString().c_str()); |
| youHaveBeenWarned = true; |
| } |
| return objectSize; |
| } |
| |
| static void updateStatOpTime(statistics::Statistics* m_regionStats, |
| int32_t statId, int64_t start); |
| |
| static void parseEndpointNamesString( |
| std::string endpoints, std::unordered_set<std::string>& endpointNames); |
| |
| static void parseEndpointString(const char* endpoints, std::string& host, |
| uint16_t& port); |
| |
| static std::string convertHostToCanonicalForm(const char* endpoints); |
| |
| static char* copyString(const char* str); |
| |
| /** |
| * Convert the byte array to a string as "%d %d ...". |
| * <code>maxLength</code> as zero implies no limit. |
| */ |
| static std::string convertBytesToString(const uint8_t* bytes, size_t length, |
| size_t maxLength = _GF_MSG_LIMIT); |
| |
| /** |
| * lib should be in the form required by ACE_DLL, typically just like |
| * specifying |
| * a |
| * lib in java System.loadLibrary( "x" ); Where x is a component of the name |
| * lib<x>.so on unix, or <x>.dll on windows. |
| */ |
| static void* getFactoryFunction(const std::string& lib, |
| const std::string& funcName); |
| |
| /** |
| * Convert the byte array to a string as "%d %d ...". |
| * <code>maxLength</code> as zero implies no limit. |
| */ |
| static std::string convertBytesToString(const int8_t* bytes, size_t length, |
| size_t maxLength = _GF_MSG_LIMIT); |
| |
| /** |
| * Convert the byte array to a string as "%d %d ...". |
| * <code>maxLength</code> as zero implies no limit. |
| */ |
| inline static std::string convertBytesToString( |
| const char* bytes, size_t length, size_t maxLength = _GF_MSG_LIMIT) { |
| return convertBytesToString(reinterpret_cast<const uint8_t*>(bytes), length, |
| maxLength); |
| } |
| }; |
| |
| // Generate random numbers 0 to max-1 |
| class RandGen { |
| public: |
| template <typename T, class G = std::default_random_engine> |
| inline T operator()(T max) { |
| return std::uniform_int_distribution<T>{0, max - 1}(generator<G>()); |
| } |
| |
| private: |
| template <class G> |
| inline G& generator() { |
| static thread_local G generator(std::random_device{}()); |
| return generator; |
| } |
| }; |
| |
| } // namespace client |
| } // namespace geode |
| } // namespace apache |
| |
| #endif // GEODE_INTERNAL_UTILS_H_ |