181 lines
4.9 KiB
C++
181 lines
4.9 KiB
C++
/****************************************************************************
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**
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** This file is part of the LibreCAD project, a 2D CAD program
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**
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** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl)
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** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
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**
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**
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** This file may be distributed and/or modified under the terms of the
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** GNU General Public License version 2 as published by the Free Software
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** Foundation and appearing in the file gpl-2.0.txt included in the
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** packaging of this file.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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**
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** This copyright notice MUST APPEAR in all copies of the script!
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**
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**********************************************************************/
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#include "rs_debug.h"
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#include <iostream>
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#include <cstdio>
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#include <cstdarg>
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#include <QString>
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#include <QDateTime>
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#include <QDebug>
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RS_Debug* RS_Debug::uniqueInstance = nullptr;
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void debugHeader(char const* file, char const* func, int line)
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{
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std::cout<<file<<" : "<<func<<" : line "<<line<<std::endl;
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}
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/**
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* Gets the one and only RS_Debug instance
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* (creates a new one on first call only)
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*
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* @return Pointer to the single instance of this
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* singleton class
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*/
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RS_Debug* RS_Debug::instance() {
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if(!uniqueInstance) {
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QDateTime now = QDateTime::currentDateTime();
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QString nowStr;
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nowStr = now.toString("yyyyMMdd_hhmmss");
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//QString fName = QString("%1/debug_%2.log")
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// .arg(RS_SYSTEM->getHomeDir())
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// .arg(nowStr);
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// 定义打印日志名称
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QString fName = QString("debug_%1.log").arg(nowStr);
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uniqueInstance = new RS_Debug;
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// 获取日志文件句柄
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//uniqueInstance->stream = fopen(fName.latin1(), "wt");
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uniqueInstance->stream = stderr;
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}
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return uniqueInstance;
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}
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/**
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* Deletes the one and only RS_Debug instance.
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*/
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void
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RS_Debug::deleteInstance() {
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if (uniqueInstance) {
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fclose(uniqueInstance->stream);
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delete uniqueInstance;
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}
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}
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/**
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* Constructor setting the default debug level.
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*/
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RS_Debug::RS_Debug()
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{
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debugLevel = D_DEBUGGING;
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}
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/**
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* Sets the debugging level.
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*/
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void RS_Debug::setLevel(RS_DebugLevel level) {
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if(debugLevel==level) return;
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debugLevel = level;
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print( D_NOTHING, "RS_DEBUG::setLevel(%d)", level);
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print( D_CRITICAL, "RS_DEBUG: Critical");
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print( D_ERROR, "RS_DEBUG: Errors");
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print( D_WARNING, "RS_DEBUG: Warnings");
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print( D_NOTICE, "RS_DEBUG: Notice");
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print( D_INFORMATIONAL, "RS_DEBUG: Informational");
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print( D_DEBUGGING, "RS_DEBUG: Debugging");
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}
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/**
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* Gets the current debugging level.
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*/
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RS_Debug::RS_DebugLevel RS_Debug::getLevel() {
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return debugLevel;
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}
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/**
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* Prints the given message to stdout.
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* 实现把文本字符串写入文件，并且文本字符可以带多个格式参数
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*/
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void RS_Debug::print(const char* format ...) {
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if(debugLevel==D_DEBUGGING) {
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// 定义可变参数指针
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va_list ap;
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// 初始化可变参数指针，指向第一个可变参数
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va_start(ap, format);
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// 使用参数列表发送格式化输出到流 stream 中
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// 参数1：这是指向 FILE 对象的指针，该 FILE 对象标识了流
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// 参数2：这是 C 字符串，包含了要被写入到流 stream 中的文本。它可以包含嵌入的 format 标签，format 标签可被随后的附加参数中指定的值替换，并按需求进行格式化。
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// 参数3：可变参数指针
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vfprintf(stream, format, ap);
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fprintf(stream, "\n");
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va_end(ap);
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fflush(stream);
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}
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}
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/**
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* Prints the given message to stdout if the current debug level
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* is lower then the given level
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*
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* @param level Debug level.
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*/
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void RS_Debug::print(RS_DebugLevel level, const char* format ...) {
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if(debugLevel>=level) {
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va_list ap;
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va_start(ap, format);
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vfprintf(stream, format, ap);
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fprintf(stream, "\n");
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va_end(ap);
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fflush(stream);
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}
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}
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/**
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* Prints a time stamp in the format yyyyMMdd_hhmmss.
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*/
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void RS_Debug::timestamp() {
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QDateTime now = QDateTime::currentDateTime();
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QString nowStr;
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nowStr = now.toString("yyyyMMdd_hh:mm:ss:zzz ");
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fprintf(stream, "%s", nowStr.toLatin1().data());
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fprintf(stream, "\n");
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fflush(stream);
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}
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/**
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* Prints the unicode for every character in the given string.
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*/
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void RS_Debug::printUnicode(const QString& text) {
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for(auto const& v: text){
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print("[%X] %c", v.unicode(), v.toLatin1());
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}
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}
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// EOF
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