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#ifndef INCLUDED_BOBCAT_LOG_
#define INCLUDED_BOBCAT_LOG_
#include <iostream>
#include <fstream>
#include <memory>
#include <bobcat/logbuf>
#include <bobcat/level>
#include <bobcat/exception>
namespace FBB
{
enum LogManipulator
{
FATAL,
nl, // new line without new time stamp
fnl, // forced new line, even at low level specs.
};
class Log: private LogBuf, public std::ostream
{
// opins:
friend Log &operator<<(Log &log, LogManipulator manip); // 2.cc
friend Log &operator<<(Log &log, // 3.cc
std::ostream &(*fun)(std::ostream &str));
friend Log &operator<<(Log &log, // 4.cc
std::ios_base &(*fun)(std::ios_base &base));
template<typename Type>
friend Log &operator<<(Log &log, Type const &type); // .f
std::ofstream d_stream;
size_t d_level; // defined by setLevel: the minimum level
// messages must have to be inserted
struct Active
{
bool levelOK;
bool opfunOK; // WHAT'S opfun?
// log characters accepted by opfun.cc (?)
std::string accept; // accepted log characters for opfun.cc
};
std::unique_ptr<Active> d_active;
// Log object used by
static std::unique_ptr<Log> s_stream; // initialize() and instance()
public:
// returns s_stream's Log object
static Log &instance();
// initializes s_stream, returns its Log object
static Log &initialize(std::string const &filename,
std::ios::openmode = std::ios::out | std::ios::app,
char const *delim = " ");
// defines the base class objects, calls init()
Log(); // 1.cc
// defines the base class objects, calls init()
Log(std::ostream &out, char const *delim = " "); // 2.cc
// forwards to open(), also called by initialize()
Log(std::string const &filename, // 3.cc
std::ios::openmode = std::ios::out | std::ios::app,
char const *delim = " ");
// redefines LogBuf, calls init()
void open(std::string const &filename,
std::ios::openmode = std::ios::out | std::ios::app,
char const *delim = " ");
// returns the current message level (i.e., d_level)
size_t level() const; // .f
// updates d_active's levelOK, opfunOK to false
// messages are logged if levelOK is true
std::ostream &level(size_t useLevel);
// d_level = newLevel, activates msg logging at 'newLevel'
void setLevel(size_t newLevel);
void setTimestamp(TimeStamps timeStamp, char const *delim = " ");
// logging completely off/on, but on() can specify a level nr.
void off(); // .f
void on(size_t logLevel = 0);
Log &operator()(char accept);
void str(std::string const &str);
std::string const &str() const;
private:
void init();
};
#include "log.f"
} // FBB
// Not in FBB, but overloading the std operator<<(ostream &) function:
std::ostream &operator<<(std::ostream &str, FBB::LogManipulator); // opins1.cc
#endif
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