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rCADDMESH/cpp/QhullLog.cpp
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QhullLog.cpp
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/****************************************************************************
**
** Copyright (C) 2008-2010 C.B. Barber. All rights reserved.
** $Id: //product/qhull/main/rel/cpp/QhullLog.cpp#11 $$Change: 1167 $
** $DateTime: 2010/01/08 19:03:17 $$Author: bbarber $
**
****************************************************************************/
#//! QhullLog -- A recorded event in a circular buffer
#include "QhullLog.h"
#include <time.h>
#ifdef _MSC_VER // Microsoft Visual C++ -- warning level 4
#endif
namespace orgQhull {
#//Class global
std::vector<std::string> a_log;
std::vector<QhullEvent> a_events;
int a_head= 0;
int a_tail= 0;
int a_head_gap= 0;
int a_tail_end= 0;
int a_max_overrun= 0;
int a_call_depth= 0;
int a_min_call_depth= 0;
time_t a_start_time_s= 0;
int a_logging_enabled= 0;
#//Constructor, destructor, etc.
QhullLog::
QhullLog(int level, const char *message)
{
a_call_depth++;
log(QhullEvent::CallEvent, level, message, 0, 0, 0);
}
QhullLog::
QhullLog(int level, const char *message, int arg1)
{
a_call_depth++;
log(QhullEvent::CallEvent, level, message, arg1, 0, 0);
}
QhullLog::
QhullLog(int level, const char *message, int arg1, int arg2)
{
a_call_depth++;
log(QhullEvent::CallEvent, level, message, arg1, arg2, 0);
}
QhullLog::
QhullLog(int level, const char *message, int arg1, const char* arg3)
{
a_call_depth++;
log(QhullEvent::CallEvent, level, message, arg1, 0, arg3);
}
QhullLog::
QhullLog(int traceLevel, const char *message, int arg1, int arg2, const char* arg3)
{
a_call_depth++;
log(QhullEvent::CallEvent, traceLevel, message, arg1, arg2, arg3);
}
QhullLog::
~QhullLog()
{
if(--a_call_depth < a_min_call_depth){
a_min_call_depth= a_call_depth;
}
if(a_events[a_tail].event_type & QhullEvent::ReturnEvent){
log(QhullEvent::ReturnEvent, 0, 0, 0, 0, 0);
}else{
a_events[a_tail++].event_type |= QhullEvent::ReturnEvent;
}
}
#//GetSet
#//Modify
void QhullLog::
log(int level, const char *message)
{
log(QhullEvent::LogEvent, level, message, 0, 0, 0);
}
void QhullLog::
log(int level, const char *message, int arg1)
{
log(QhullEvent::LogEvent, level, message, arg1, 0, 0);
}
void QhullLog::
log(int level, const char *message, int arg1, int arg2)
{
log(QhullEvent::LogEvent, level, message, arg1, arg2, 0);
}
void QhullLog::
log(int level, const char *message, int arg1, const char* arg3)
{
log(QhullEvent::LogEvent, level, message, arg1, 0, arg3);
}
#//Helper
void QhullLog::
cullEvents()
{
}//cullEvents
//! May be called by multiple threads
void QhullLog::
log(QhullEvent::EventTypes e, int traceLevel, const char *message, int arg1, int arg2, const char* arg3)
{
traceLevel= traceLevel; // Ignore traceLevel for now
if(a_logging_enabled != 1){
return;
}
int t= (int)(time(0) - a_start_time_s); // Conversion OK, seconds since starts
a_events[a_tail++]= QhullEvent(t, e, traceLevel, message, arg1, arg2, arg3);
a_call_depth++;
if(a_tail-a_head_gap < a_head || a_tail >= a_tail_end){
maybeCullEvents();
}
}
void QhullLog::
maybeCullEvents()
{
if(a_tail>=a_tail_end){
if(a_tail-a_tail_end > a_max_overrun){
a_max_overrun= a_tail-a_tail_end; //FIXUP -- race condition, code not in Qhull
}
a_tail= 0;
}
if(a_head<a_head_gap){
if(a_tail<a_head_gap || a_tail_end-a_tail+a_head < a_head_gap){
cullEvents();
}
}else if(a_head>a_tail && a_head-a_tail < a_head_gap){
cullEvents();
}
}//maybeCullEvents
}//namespace orgQhull
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