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log: deduplicate category names and improve logging.cpp
The code in `logging.cpp` needs to:
* Get the category name given the flag (e.g. `BCLog::PRUNE` -> `"prune"`)
* Get the flag given the category name (e.g. `"prune"` -> `BCLog::PRUNE`)
* Get the list of category names sorted in alphabetical order
Achieve this by using the proper std containers. The result is
* less code (this diff is +62 / -129)
* faster code (to linear search and no copy+sort)
* more maintainable code (the categories are no longer duplicated in
`LogCategories[]` and `LogCategoryToStr()`)
This behavior is preserved:
`BCLog::NONE` -> `""` (lookup by `LogCategoryToStr()`)
`""` -> `BCLog::ALL` (lookup by `GetLogCategory("")`)
This commit is contained in:
Vasil Dimov
parent
7143d43884
commit
d3b3af9034
1 changed files with 62 additions and 129 deletions
191
src/logging.cpp
191
src/logging.cpp
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@ -9,9 +9,8 @@
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#include <util/threadnames.h>
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#include <util/time.h>
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#include <algorithm>
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#include <array>
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#include <mutex>
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#include <map>
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#include <optional>
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const char * const DEFAULT_DEBUGLOGFILE = "debug.log";
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@ -142,49 +141,58 @@ bool BCLog::Logger::DefaultShrinkDebugFile() const
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return m_categories == BCLog::NONE;
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}
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struct CLogCategoryDesc {
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BCLog::LogFlags flag;
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std::string category;
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static const std::map<std::string, BCLog::LogFlags> LOG_CATEGORIES_BY_STR{
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{"0", BCLog::NONE},
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{"", BCLog::NONE},
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{"net", BCLog::NET},
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{"tor", BCLog::TOR},
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{"mempool", BCLog::MEMPOOL},
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{"http", BCLog::HTTP},
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{"bench", BCLog::BENCH},
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{"zmq", BCLog::ZMQ},
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{"walletdb", BCLog::WALLETDB},
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{"rpc", BCLog::RPC},
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{"estimatefee", BCLog::ESTIMATEFEE},
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{"addrman", BCLog::ADDRMAN},
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{"selectcoins", BCLog::SELECTCOINS},
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{"reindex", BCLog::REINDEX},
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{"cmpctblock", BCLog::CMPCTBLOCK},
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{"rand", BCLog::RAND},
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{"prune", BCLog::PRUNE},
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{"proxy", BCLog::PROXY},
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{"mempoolrej", BCLog::MEMPOOLREJ},
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{"libevent", BCLog::LIBEVENT},
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{"coindb", BCLog::COINDB},
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{"qt", BCLog::QT},
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{"leveldb", BCLog::LEVELDB},
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{"validation", BCLog::VALIDATION},
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{"i2p", BCLog::I2P},
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{"ipc", BCLog::IPC},
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#ifdef DEBUG_LOCKCONTENTION
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{"lock", BCLog::LOCK},
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#endif
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{"util", BCLog::UTIL},
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{"blockstorage", BCLog::BLOCKSTORAGE},
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{"txreconciliation", BCLog::TXRECONCILIATION},
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{"scan", BCLog::SCAN},
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{"txpackages", BCLog::TXPACKAGES},
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{"1", BCLog::ALL},
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{"all", BCLog::ALL},
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};
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const CLogCategoryDesc LogCategories[] =
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{
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{BCLog::NONE, "0"},
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{BCLog::NONE, ""},
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{BCLog::NET, "net"},
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{BCLog::TOR, "tor"},
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{BCLog::MEMPOOL, "mempool"},
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{BCLog::HTTP, "http"},
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{BCLog::BENCH, "bench"},
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{BCLog::ZMQ, "zmq"},
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{BCLog::WALLETDB, "walletdb"},
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{BCLog::RPC, "rpc"},
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{BCLog::ESTIMATEFEE, "estimatefee"},
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{BCLog::ADDRMAN, "addrman"},
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{BCLog::SELECTCOINS, "selectcoins"},
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{BCLog::REINDEX, "reindex"},
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{BCLog::CMPCTBLOCK, "cmpctblock"},
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{BCLog::RAND, "rand"},
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{BCLog::PRUNE, "prune"},
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{BCLog::PROXY, "proxy"},
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{BCLog::MEMPOOLREJ, "mempoolrej"},
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{BCLog::LIBEVENT, "libevent"},
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{BCLog::COINDB, "coindb"},
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{BCLog::QT, "qt"},
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{BCLog::LEVELDB, "leveldb"},
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{BCLog::VALIDATION, "validation"},
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{BCLog::I2P, "i2p"},
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{BCLog::IPC, "ipc"},
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#ifdef DEBUG_LOCKCONTENTION
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{BCLog::LOCK, "lock"},
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#endif
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{BCLog::UTIL, "util"},
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{BCLog::BLOCKSTORAGE, "blockstorage"},
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{BCLog::TXRECONCILIATION, "txreconciliation"},
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{BCLog::SCAN, "scan"},
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{BCLog::TXPACKAGES, "txpackages"},
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{BCLog::ALL, "1"},
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{BCLog::ALL, "all"},
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static const std::unordered_map<BCLog::LogFlags, std::string> LOG_CATEGORIES_BY_FLAG{
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// Swap keys and values from LOG_CATEGORIES_BY_STR.
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[](const std::map<std::string, BCLog::LogFlags>& in) {
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std::unordered_map<BCLog::LogFlags, std::string> out;
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for (const auto& [k, v] : in) {
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switch (v) {
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case BCLog::NONE: out.emplace(BCLog::NONE, ""); break;
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case BCLog::ALL: out.emplace(BCLog::ALL, "all"); break;
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default: out.emplace(v, k);
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}
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}
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return out;
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}(LOG_CATEGORIES_BY_STR)
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};
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bool GetLogCategory(BCLog::LogFlags& flag, const std::string& str)
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@ -193,11 +201,10 @@ bool GetLogCategory(BCLog::LogFlags& flag, const std::string& str)
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flag = BCLog::ALL;
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return true;
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}
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for (const CLogCategoryDesc& category_desc : LogCategories) {
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if (category_desc.category == str) {
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flag = category_desc.flag;
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return true;
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}
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auto it = LOG_CATEGORIES_BY_STR.find(str);
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if (it != LOG_CATEGORIES_BY_STR.end()) {
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flag = it->second;
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return true;
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}
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return false;
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}
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@ -221,76 +228,9 @@ std::string BCLog::Logger::LogLevelToStr(BCLog::Level level)
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std::string LogCategoryToStr(BCLog::LogFlags category)
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{
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// Each log category string representation should sync with LogCategories
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switch (category) {
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case BCLog::LogFlags::NONE:
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return "";
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case BCLog::LogFlags::NET:
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return "net";
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case BCLog::LogFlags::TOR:
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return "tor";
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case BCLog::LogFlags::MEMPOOL:
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return "mempool";
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case BCLog::LogFlags::HTTP:
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return "http";
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case BCLog::LogFlags::BENCH:
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return "bench";
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case BCLog::LogFlags::ZMQ:
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return "zmq";
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case BCLog::LogFlags::WALLETDB:
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return "walletdb";
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case BCLog::LogFlags::RPC:
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return "rpc";
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case BCLog::LogFlags::ESTIMATEFEE:
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return "estimatefee";
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case BCLog::LogFlags::ADDRMAN:
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return "addrman";
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case BCLog::LogFlags::SELECTCOINS:
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return "selectcoins";
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case BCLog::LogFlags::REINDEX:
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return "reindex";
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case BCLog::LogFlags::CMPCTBLOCK:
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return "cmpctblock";
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case BCLog::LogFlags::RAND:
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return "rand";
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case BCLog::LogFlags::PRUNE:
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return "prune";
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case BCLog::LogFlags::PROXY:
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return "proxy";
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case BCLog::LogFlags::MEMPOOLREJ:
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return "mempoolrej";
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case BCLog::LogFlags::LIBEVENT:
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return "libevent";
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case BCLog::LogFlags::COINDB:
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return "coindb";
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case BCLog::LogFlags::QT:
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return "qt";
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case BCLog::LogFlags::LEVELDB:
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return "leveldb";
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case BCLog::LogFlags::VALIDATION:
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return "validation";
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case BCLog::LogFlags::I2P:
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return "i2p";
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case BCLog::LogFlags::IPC:
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return "ipc";
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#ifdef DEBUG_LOCKCONTENTION
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case BCLog::LogFlags::LOCK:
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return "lock";
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#endif
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case BCLog::LogFlags::UTIL:
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return "util";
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case BCLog::LogFlags::BLOCKSTORAGE:
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return "blockstorage";
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case BCLog::LogFlags::TXRECONCILIATION:
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return "txreconciliation";
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case BCLog::LogFlags::SCAN:
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return "scan";
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case BCLog::LogFlags::TXPACKAGES:
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return "txpackages";
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case BCLog::LogFlags::ALL:
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return "all";
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}
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assert(false);
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auto it = LOG_CATEGORIES_BY_FLAG.find(category);
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assert(it != LOG_CATEGORIES_BY_FLAG.end());
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return it->second;
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}
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static std::optional<BCLog::Level> GetLogLevel(const std::string& level_str)
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@ -312,18 +252,11 @@ static std::optional<BCLog::Level> GetLogLevel(const std::string& level_str)
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std::vector<LogCategory> BCLog::Logger::LogCategoriesList() const
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{
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// Sort log categories by alphabetical order.
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std::array<CLogCategoryDesc, std::size(LogCategories)> categories;
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std::copy(std::begin(LogCategories), std::end(LogCategories), categories.begin());
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std::sort(categories.begin(), categories.end(), [](auto a, auto b) { return a.category < b.category; });
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std::vector<LogCategory> ret;
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for (const CLogCategoryDesc& category_desc : categories) {
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if (category_desc.flag == BCLog::NONE || category_desc.flag == BCLog::ALL) continue;
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LogCategory catActive;
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catActive.category = category_desc.category;
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catActive.active = WillLogCategory(category_desc.flag);
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ret.push_back(catActive);
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for (const auto& [category, flag] : LOG_CATEGORIES_BY_STR) {
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if (flag != BCLog::NONE && flag != BCLog::ALL) {
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ret.push_back(LogCategory{.category = category, .active = WillLogCategory(flag)});
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}
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}
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return ret;
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}
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