463 lines
11 KiB
C++
463 lines
11 KiB
C++
#ifndef _UTILS_H
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#define _UTILS_H
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#include <system.hh>
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/**********************************************************************
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*
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* Default values
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*/
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#if defined(FULL_DEBUG)
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#define VERIFY_ON 1
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#define TRACING_ON 1
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#define DEBUG_ON 1
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#define TIMERS_ON 1
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#define FREE_MEMORY 1
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#elif defined(NO_DEBUG)
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#define NO_ASSERTS 1
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#define NO_LOGGING 1
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#else
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#define VERIFY_ON 1 // compiled in, use --verify to enable
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#define TRACING_ON 1 // use --trace X to enable
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#define TIMERS_ON 1
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#endif
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/**********************************************************************
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*
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* Forward declarations
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*/
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namespace ledger {
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using namespace boost;
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#if defined(VERIFY_ON) && ! defined(USE_BOOST_PYTHON)
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class string;
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#else
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typedef std::string string;
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#endif
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typedef posix_time::ptime ptime;
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typedef ptime::time_duration_type time_duration;
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typedef gregorian::date date;
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typedef gregorian::date_duration date_duration;
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typedef posix_time::seconds seconds;
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typedef filesystem::path path;
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typedef boost::filesystem::ifstream ifstream;
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typedef boost::filesystem::ofstream ofstream;
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typedef boost::filesystem::filesystem_error filesystem_error;
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}
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/**********************************************************************
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*
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* Assertions
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*/
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#ifdef assert
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#undef assert
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#endif
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#if ! defined(NO_ASSERTS)
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#define ASSERTS_ON 1
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#endif
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#if defined(ASSERTS_ON)
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namespace ledger {
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void debug_assert(const string& reason, const string& func,
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const string& file, unsigned long line);
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}
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#define assert(x) \
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((x) ? ((void)0) : debug_assert(#x, BOOST_CURRENT_FUNCTION, \
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__FILE__, __LINE__))
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#else // ! ASSERTS_ON
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#define assert(x)
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#endif // ASSERTS_ON
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/**********************************************************************
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*
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* Verification (basically, very slow asserts)
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*/
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#if defined(VERIFY_ON)
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namespace ledger {
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extern bool verify_enabled;
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#define VERIFY(x) (ledger::verify_enabled ? assert(x) : ((void)0))
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#define DO_VERIFY() ledger::verify_enabled
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#define IF_VERIFY() if (DO_VERIFY())
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void initialize_memory_tracing();
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void shutdown_memory_tracing();
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std::size_t current_memory_size();
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std::size_t current_objects_size();
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void trace_ctor_func(void * ptr, const char * cls_name, const char * args,
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std::size_t cls_size);
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void trace_dtor_func(void * ptr, const char * cls_name, std::size_t cls_size);
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#define TRACE_CTOR(cls, args) \
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(DO_VERIFY() ? trace_ctor_func(this, #cls, args, sizeof(cls)) : ((void)0))
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#define TRACE_DTOR(cls) \
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(DO_VERIFY() ? trace_dtor_func(this, #cls, sizeof(cls)) : ((void)0))
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void report_memory(std::ostream& out, bool report_all = false);
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#if ! defined(USE_BOOST_PYTHON)
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class string : public std::string
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{
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public:
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string();
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string(const string& str);
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string(const std::string& str);
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string(const int len, char x);
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string(const char * str);
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string(const char * str, const char * end);
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string(const string& str, int x);
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string(const string& str, int x, int y);
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string(const char * str, int x);
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string(const char * str, int x, int y);
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~string();
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};
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inline string operator+(const string& __lhs, const string& __rhs)
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{
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string __str(__lhs);
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__str.append(__rhs);
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return __str;
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}
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string operator+(const char* __lhs, const string& __rhs);
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string operator+(char __lhs, const string& __rhs);
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inline string operator+(const string& __lhs, const char* __rhs)
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{
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string __str(__lhs);
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__str.append(__rhs);
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return __str;
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}
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inline string operator+(const string& __lhs, char __rhs)
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{
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typedef string __string_type;
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typedef string::size_type __size_type;
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__string_type __str(__lhs);
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__str.append(__size_type(1), __rhs);
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return __str;
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}
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inline bool operator==(const string& __lhs, const string& __rhs)
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{ return __lhs.compare(__rhs) == 0; }
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inline bool operator==(const char* __lhs, const string& __rhs)
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{ return __rhs.compare(__lhs) == 0; }
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inline bool operator==(const string& __lhs, const char* __rhs)
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{ return __lhs.compare(__rhs) == 0; }
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inline bool operator!=(const string& __lhs, const string& __rhs)
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{ return __rhs.compare(__lhs) != 0; }
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inline bool operator!=(const char* __lhs, const string& __rhs)
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{ return __rhs.compare(__lhs) != 0; }
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inline bool operator!=(const string& __lhs, const char* __rhs)
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{ return __lhs.compare(__rhs) != 0; }
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#endif
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} // namespace ledger
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#else // ! VERIFY_ON
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#define VERIFY(x)
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#define TRACE_CTOR(cls, args)
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#define TRACE_DTOR(cls)
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#endif // VERIFY_ON
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/**********************************************************************
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*
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* Logging
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*/
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#if ! defined(NO_LOGGING)
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#define LOGGING_ON 1
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#endif
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#if defined(LOGGING_ON)
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namespace ledger {
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enum log_level_t {
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LOG_OFF = 0,
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LOG_CRIT,
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LOG_FATAL,
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LOG_ASSERT,
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LOG_ERROR,
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LOG_VERIFY,
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LOG_WARN,
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LOG_INFO,
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LOG_EXCEPT,
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LOG_DEBUG,
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LOG_TRACE,
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LOG_ALL
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};
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extern log_level_t _log_level;
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extern std::ostream * _log_stream;
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extern std::ostringstream _log_buffer;
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bool logger_func(log_level_t level);
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#define LOGGER(cat) \
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static const char * const _this_category = cat
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#if defined(TRACING_ON)
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extern unsigned int _trace_level;
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#define SHOW_TRACE(lvl) \
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(_log_level >= LOG_TRACE && lvl <= _trace_level)
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#define TRACE(lvl, msg) \
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(SHOW_TRACE(lvl) ? ((_log_buffer << msg), logger_func(LOG_TRACE)) : false)
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#else // TRACING_ON
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#define SHOW_TRACE(lvl) false
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#define TRACE(lvl, msg)
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#endif // TRACING_ON
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#if defined(DEBUG_ON)
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extern optional<std::string> _log_category;
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inline bool category_matches(const char * cat) {
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return _log_category && starts_with(cat, *_log_category);
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}
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#define SHOW_DEBUG(cat) \
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(_log_level >= LOG_DEBUG && category_matches(cat))
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#define SHOW_DEBUG_() SHOW_DEBUG(_this_category)
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#define DEBUG(cat, msg) \
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(SHOW_DEBUG(cat) ? ((_log_buffer << msg), logger_func(LOG_DEBUG)) : false)
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#define DEBUG_(msg) DEBUG(_this_category, msg)
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#else // DEBUG_ON
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#define SHOW_DEBUG(cat) false
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#define SHOW_DEBUG_() false
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#define DEBUG(cat, msg)
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#define DEBUG_(msg)
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#endif // DEBUG_ON
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#define LOG_MACRO(level, msg) \
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(_log_level >= level ? \
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((_log_buffer << msg), logger_func(level)) : false)
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#define SHOW_INFO() (_log_level >= LOG_INFO)
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#define SHOW_WARN() (_log_level >= LOG_WARN)
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#define SHOW_ERROR() (_log_level >= LOG_ERROR)
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#define SHOW_FATAL() (_log_level >= LOG_FATAL)
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#define SHOW_CRITICAL() (_log_level >= LOG_CRIT)
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#define INFO(msg) LOG_MACRO(LOG_INFO, msg)
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#define WARN(msg) LOG_MACRO(LOG_WARN, msg)
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#define ERROR(msg) LOG_MACRO(LOG_ERROR, msg)
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#define FATAL(msg) LOG_MACRO(LOG_FATAL, msg)
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#define CRITICAL(msg) LOG_MACRO(LOG_CRIT, msg)
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#define EXCEPTION(msg) LOG_MACRO(LOG_EXCEPT, msg)
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} // namespace ledger
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#else // ! LOGGING_ON
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#define LOGGER(cat)
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#define SHOW_TRACE(lvl) false
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#define SHOW_DEBUG(cat) false
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#define SHOW_DEBUG_() false
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#define SHOW_INFO() false
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#define SHOW_WARN() false
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#define SHOW_ERROR() false
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#define SHOW_FATAL() false
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#define SHOW_CRITICAL() false
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#define TRACE(lvl, msg)
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#define DEBUG(cat, msg)
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#define DEBUG_(msg)
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#define INFO(msg)
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#define WARN(msg)
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#define ERROR(msg)
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#define FATAL(msg)
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#define CRITICAL(msg)
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#endif // LOGGING_ON
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#define IF_TRACE(lvl) if (SHOW_TRACE(lvl))
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#define IF_DEBUG(cat) if (SHOW_DEBUG(cat))
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#define IF_DEBUG_() if (SHOW_DEBUG_())
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#define IF_INFO() if (SHOW_INFO())
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#define IF_WARN() if (SHOW_WARN())
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#define IF_ERROR() if (SHOW_ERROR())
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#define IF_FATAL() if (SHOW_FATAL())
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#define IF_CRITICAL() if (SHOW_CRITICAL())
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/**********************************************************************
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*
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* Timers (allows log entries to specify cumulative time spent)
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*/
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#if defined(LOGGING_ON) && defined(TIMERS_ON)
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namespace ledger {
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void start_timer(const char * name, log_level_t lvl);
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void stop_timer(const char * name);
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void finish_timer(const char * name);
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#if defined(TRACING_ON)
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#define TRACE_START(name, lvl, msg) \
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(SHOW_TRACE(lvl) ? \
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((_log_buffer << msg), start_timer(#name, LOG_TRACE)) : ((void)0))
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#define TRACE_STOP(name, lvl) \
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(SHOW_TRACE(lvl) ? stop_timer(#name) : ((void)0))
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#define TRACE_FINISH(name, lvl) \
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(SHOW_TRACE(lvl) ? finish_timer(#name) : ((void)0))
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#else
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#define TRACE_START(name, lvl, msg)
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#define TRACE_STOP(name)
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#define TRACE_FINISH(name)
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#endif
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#if defined(DEBUG_ON)
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#define DEBUG_START(name, cat, msg) \
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(SHOW_DEBUG(cat) ? \
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((_log_buffer << msg), start_timer(#name, LOG_DEBUG)) : ((void)0))
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#define DEBUG_START_(name, msg) \
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DEBUG_START_(name, _this_category, msg)
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#define DEBUG_STOP(name, cat) \
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(SHOW_DEBUG(cat) ? stop_timer(#name) : ((void)0))
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#define DEBUG_STOP_(name) \
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DEBUG_STOP_(name, _this_category)
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#define DEBUG_FINISH(name, cat) \
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(SHOW_DEBUG(cat) ? finish_timer(#name) : ((void)0))
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#define DEBUG_FINISH_(name) \
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DEBUG_FINISH_(name, _this_category)
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#else
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#define DEBUG_START(name, cat, msg)
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#define DEBUG_START_(name, msg)
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#define DEBUG_STOP(name)
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#define DEBUG_FINISH(name)
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#endif
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#define INFO_START(name, msg) \
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(SHOW_INFO() ? \
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((_log_buffer << msg), start_timer(#name, LOG_INFO)) : ((void)0))
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#define INFO_STOP(name) \
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(SHOW_INFO() ? stop_timer(#name) : ((void)0))
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#define INFO_FINISH(name) \
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(SHOW_INFO() ? finish_timer(#name) : ((void)0))
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} // namespace ledger
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#else // ! (LOGGING_ON && TIMERS_ON)
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#define TRACE_START(lvl, msg, name)
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#define TRACE_STOP(name)
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#define TRACE_FINISH(name)
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#define DEBUG_START(name, msg)
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#define DEBUG_START_(name, cat, msg)
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#define DEBUG_STOP(name)
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#define DEBUG_FINISH(name)
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#define INFO_START(name, msg)
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#define INFO_STOP(name)
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#define INFO_FINISH(name)
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#endif // TIMERS_ON
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/**********************************************************************
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*
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* Exception handling
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*/
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#include "context.h"
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namespace ledger {
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#define DECLARE_EXCEPTION(name) \
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class name : public std::logic_error { \
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public: \
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name(const string& why) throw() : std::logic_error(why) {} \
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}
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extern std::ostringstream _exc_buffer;
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template <typename T>
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inline void throw_func(const std::string& message) {
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_exc_buffer.str("");
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throw T(message);
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}
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#define throw_(cls, msg) \
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((_exc_buffer << msg), throw_func<cls>(_exc_buffer.str()))
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inline void throw_unexpected_error(char c, char wanted) {
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#if 0
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if (c == -1) {
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if (wanted)
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throw new error(string("Missing '") + wanted + "'");
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else
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throw new error("Unexpected end of input");
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} else {
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if (wanted)
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throw new error(string("Invalid char '") + c +
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"' (wanted '" + wanted + "')");
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else
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throw new error(string("Invalid char '") + c + "'");
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}
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#endif
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}
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} // namespace ledger
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/**********************************************************************
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*
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* Date/time support classes
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*/
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#include "times.h"
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/**********************************************************************
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*
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* General utility functions
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*/
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namespace ledger {
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path resolve_path(const path& pathname);
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#ifdef HAVE_REALPATH
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extern "C" char * realpath(const char *, char resolved_path[]);
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#endif
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inline const string& either_or(const string& first,
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const string& second) {
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return first.empty() ? second : first;
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}
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} // namespace ledger
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#endif // _UTILS_H
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