barrier/base/CLog.h
crs 536eb52337 added methods to CLog for getting the outputter, getting and
setting the priority filter, and added code for thread safety.
added code to apps to enable thread safety in CLog.
2002-05-31 14:25:26 +00:00

86 lines
2.4 KiB
C++

#ifndef CLOG_H
#define CLOG_H
#include "BasicTypes.h"
#include <stdarg.h>
class CLog {
public:
typedef void (*Outputter)(const char*);
typedef void (*Lock)(bool lock);
//
static void print(const char*, ...);
static void printt(const char* file, int line, const char*, ...);
// get/set the function used to write the log. a NULL outputter
// means to use the default which is fprintf(stderr, ...). note
// that the outputter should not call CLog methods but, if it
// does, the current lock function must permit recursive locks.
static void setOutputter(Outputter);
static Outputter getOutputter();
// get/set the lock/unlock function. use setLock(NULL) to remove
// the locking function. note that the lock function is used when
// retrieving the lock function. there is no default lock function.
static void setLock(Lock);
static Lock getLock();
// get/set the minimum priority filter. any message below this
// priority is discarded. the default priority is 4 (INFO)
// (unless built without NDEBUG in which case it's 5 (DEBUG)).
// the default can be overridden by setting the SYN_LOG_PRI env
// var to "CRIT", "ERR", etc.
static void setFilter(int);
static int getFilter();
private:
class CHoldLock {
public:
CHoldLock(CLog::Lock lock) : m_lock(lock) { m_lock(true); }
~CHoldLock() { m_lock(false); }
private:
CLog::Lock m_lock;
};
static void dummyLock(bool);
static int getMaxPriority();
static void output(int priority, char* msg);
static char* vsprint(int pad, char*, int len, const char*, va_list);
static int nprint(const char*, va_list);
#if defined(CONFIG_PLATFORM_WIN32)
static void openConsole();
#endif
private:
static Outputter s_outputter;
static Lock s_lock;
static int s_maxPriority;
};
#if defined(NOLOGGING)
#define log(_a1)
#define logc(_a1, _a2)
#define CLOG_TRACE
#elif defined(NDEBUG)
#define log(_a1) CLog::print _a1
#define logc(_a1, _a2) if (_a1) CLog::print _a2
#define CLOG_TRACE
#else
#define log(_a1) CLog::printt _a1
#define logc(_a1, _a2) if (_a1) CLog::printt _a2
#define CLOG_TRACE __FILE__, __LINE__,
#endif
#define CLOG_CRIT CLOG_TRACE "%z\060"
#define CLOG_ERR CLOG_TRACE "%z\061"
#define CLOG_WARN CLOG_TRACE "%z\062"
#define CLOG_NOTE CLOG_TRACE "%z\063"
#define CLOG_INFO CLOG_TRACE "%z\064"
#define CLOG_DEBUG CLOG_TRACE "%z\065"
#define CLOG_DEBUG1 CLOG_TRACE "%z\066"
#define CLOG_DEBUG2 CLOG_TRACE "%z\067"
#endif