logging.h File Reference

#include <threadsafety.h>
#include <tinyformat.h>
#include <util/fs.h>
#include <util/string.h>
#include <atomic>
#include <cstdint>
#include <functional>
#include <list>
#include <mutex>
#include <string>

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Classes
struct	LogCategory
class	BCLog::Logger

Namespaces
namespace	BCLog

Macros
#define	LogPrintf(...)   LogPrintf_(__func__, __FILE__, __LINE__, __VA_ARGS__)
#define	LogPrint(category, ...)
#define	LogPrintfToBeContinued   LogPrintf
	These are aliases used to explicitly state that the message should not end with a newline character. More...
#define	LogPrintToBeContinued   LogPrint

Enumerations
enum	BCLog::LogFlags : uint32_t {   BCLog::NONE = 0 , BCLog::NET = (1 << 0) , BCLog::TOR = (1 << 1) , BCLog::MEMPOOL = (1 << 2) ,   BCLog::HTTP = (1 << 3) , BCLog::BENCH = (1 << 4) , BCLog::ZMQ = (1 << 5) , BCLog::WALLETDB = (1 << 6) ,   BCLog::RPC = (1 << 7) , BCLog::ESTIMATEFEE = (1 << 8) , BCLog::ADDRMAN = (1 << 9) , BCLog::SELECTCOINS = (1 << 10) ,   BCLog::REINDEX = (1 << 11) , BCLog::CMPCTBLOCK = (1 << 12) , BCLog::RAND = (1 << 13) , BCLog::PRUNE = (1 << 14) ,   BCLog::PROXY = (1 << 15) , BCLog::MEMPOOLREJ = (1 << 16) , BCLog::LIBEVENT = (1 << 17) , BCLog::COINDB = (1 << 18) ,   BCLog::QT = (1 << 19) , BCLog::LEVELDB = (1 << 20) , BCLog::VALIDATION = (1 << 21) , BCLog::AVALANCHE = (1 << 22) ,   BCLog::I2P = (1 << 23) , BCLog::CHRONIK = (1 << 24) , BCLog::BLOCKSTORE = (1 << 26) , BCLog::NETDEBUG = (1 << 27) ,   BCLog::TXPACKAGES = (1 << 28) , BCLog::ALL = ~uint32_t(0) }

Functions
BCLog::Logger &	LogInstance ()
static bool	LogAcceptCategory (BCLog::LogFlags category)
	Return true if log accepts specified category. More...
bool	GetLogCategory (BCLog::LogFlags &flag, const std::string &str)
	Return true if str parses as a log category and set the flag. More...
template<typename... Args>
static void	LogPrintf_ (const std::string &logging_function, const std::string &source_file, const int source_line, const char *fmt, const Args &...args)
template<typename... Args>
bool	error (const char *fmt, const Args &...args)

Variables
static const bool	DEFAULT_LOGTIMEMICROS = false
static const bool	DEFAULT_LOGIPS = false
static const bool	DEFAULT_LOGTIMESTAMPS = true
static const bool	DEFAULT_LOGTHREADNAMES = false
static const bool	DEFAULT_LOGSOURCELOCATIONS = false
bool	fLogIPs
const char *const	DEFAULT_DEBUGLOGFILE

Macro Definition Documentation

LogPrint

#define LogPrint	(		category,
			...
	)

Value:

    do {                                                                       \
        if (LogAcceptCategory((category))) {                                   \
            LogPrintf(__VA_ARGS__);                                            \
        }                                                                      \
    } while (0)

Definition at line 211 of file logging.h.

LogPrintf

#define LogPrintf

(

...

)

LogPrintf_(__func__, __FILE__, __LINE__, __VA_ARGS__)

Definition at line 207 of file logging.h.

LogPrintfToBeContinued

#define LogPrintfToBeContinued   LogPrintf

These are aliases used to explicitly state that the message should not end with a newline character.

It allows for detecting the missing newlines that could make the logs hard to read.

Definition at line 223 of file logging.h.

LogPrintToBeContinued

#define LogPrintToBeContinued   LogPrint

Definition at line 224 of file logging.h.

Function Documentation

error()

template<typename... Args>

bool error	(	const char *	fmt,
		const Args &...	args
	)

Definition at line 226 of file logging.h.

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GetLogCategory()

bool GetLogCategory	(	BCLog::LogFlags &	flag,
		const std::string &	str
	)

Return true if str parses as a log category and set the flag.

Definition at line 142 of file logging.cpp.

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LogAcceptCategory()

static bool LogAcceptCategory ( BCLog::LogFlags  category )

inlinestatic

Return true if log accepts specified category.

Definition at line 177 of file logging.h.

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LogInstance()

BCLog::Logger & LogInstance

(

)

NOTE: the logger instance is leaked on exit. This is ugly, but will be cleaned up by the OS/libc. Defining a logger as a global object doesn't work since the order of destruction of static/global objects is undefined. Consider if the logger gets destroyed, and then some later destructor calls LogPrintf, maybe indirectly, and you get a core dump at shutdown trying to access the logger. When the shutdown sequence is fully audited and tested, explicit destruction of these objects can be implemented by changing this from a raw pointer to a std::unique_ptr. Since the ~Logger() destructor is never called, the Logger class and all its subclasses must have implicitly-defined destructors.

This method of initialization was originally introduced in ee3374234c60aba2cc4c5cd5cac1c0aefc2d817c.

Definition at line 20 of file logging.cpp.

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LogPrintf_()

template<typename... Args>

static void LogPrintf_ ( const std::string &  logging_function, const std::string &  source_file, const int  source_line, const char *  fmt, const Args &...  args  )

inlinestatic

Original format string will have newline so don't add one here

Definition at line 189 of file logging.h.

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Variable Documentation

DEFAULT_DEBUGLOGFILE

const char* const DEFAULT_DEBUGLOGFILE

extern

Definition at line 18 of file logging.cpp.

DEFAULT_LOGIPS

const bool DEFAULT_LOGIPS = false

static

Definition at line 23 of file logging.h.

DEFAULT_LOGSOURCELOCATIONS

const bool DEFAULT_LOGSOURCELOCATIONS = false

static

Definition at line 26 of file logging.h.

DEFAULT_LOGTHREADNAMES

const bool DEFAULT_LOGTHREADNAMES = false

static

Definition at line 25 of file logging.h.

DEFAULT_LOGTIMEMICROS

const bool DEFAULT_LOGTIMEMICROS = false

static

Definition at line 22 of file logging.h.

DEFAULT_LOGTIMESTAMPS

const bool DEFAULT_LOGTIMESTAMPS = true

static

Definition at line 24 of file logging.h.

fLogIPs

bool fLogIPs

extern

Definition at line 17 of file logging.cpp.