QString OPMLWriter::Write (const channels_shorts_t& channels,
const QString& title,
const QString& owner,
const QString& ownerEmail) const
{
QDomDocument doc;
QDomElement root = doc.createElement ("opml");
doc.appendChild (root);
WriteHead (root, doc, title, owner, ownerEmail);
WriteBody (root, doc, channels);
return doc.toString ();
}
void Logger::WriteTrace(LogLevel level,const char* file,int line,const char* function,const char* format,...)
{
int offset=WriteHead(_buffer,MaxLogSize,level);
offset+=WriteTrace(_buffer+offset,MaxLogSize-offset,file,line,function);
va_list args;
va_start(args, format);
vsnprintf(_buffer+offset,MaxLogSize-offset, format, args);
va_end(args);
_writers[level]->Write(_buffer);
if(_showInConsole)
{
cout<<_buffer;
}
}
static void
_CloseArchive(ArchiveHandle *AH)
{
if (AH->mode == archModeWrite)
{
WriteHead(AH);
WriteToc(AH);
if (fclose(AH->FH) != 0)
die_horribly(AH, modulename, "could not close TOC file: %s\n", strerror(errno));
WriteDataChunks(AH);
}
AH->FH = NULL;
}
void Logger::WriteMessage(LogLevel level,const char* format,...)
{
if(level==LogLevel_Debug&&!_debugEnabled)
{
return;
}
int offset=WriteHead(_buffer,MaxLogSize,level);
va_list args;
va_start(args, format);
vsnprintf(_buffer+offset,MaxLogSize-offset, format, args);
va_end(args);
_writers[level]->Write(_buffer);
if(_showInConsole)
{
cout<<_buffer;
}
}
/*压缩函数，可实现将字符的哈弗曼编码存入压缩后的文件头，内容压缩后继续存进文档。*/
int ZipFile(const char *sourceFileName, const char *targetFileName)
{
FILE *sourceFp = NULL, *targetFp = NULL;
DataCode dataCodeArr[CODE_SIZE];
USHORT writeCodeLen, i;
UCHAR writeCode[CHAR_BIT], readData, writeData, lastBtyeLen;
fpos_t lastBtyePos;
if((sourceFp = fopen(sourceFileName, "rb")) == NULL)
{
printf("打开%s文件错误！ ", sourceFileName);
return 1;
}
if((targetFp = fopen(targetFileName, "w+b")) == NULL)
{
printf("打开%s文件错误！ ", targetFileName);
fclose(sourceFp);
return 1;
}
GetFileHuffmanCode(sourceFp, dataCodeArr);
WriteHead(targetFp, dataCodeArr);
lastBtyeLen = 0;
fgetpos(targetFp, &lastBtyePos); /* 记录位子 后面得到长度信息后 再在这里写 */
fwrite(&lastBtyeLen, UCHAR_SIZE, 1, targetFp);
/* 对源数据进行编码转换 并写入目标文件中 */
memset(writeCode, 0, CHAR_BIT);
writeCodeLen = 0;
fseek(sourceFp, 0L, SEEK_SET);
while(!feof(sourceFp))
{
/*读入字节，遍历找到编码转存。*/
fread(&readData, UCHAR_SIZE, 1, sourceFp);
for(i = 0; i < dataCodeArr[readData].len; i++)
{
writeCode[writeCodeLen++] = dataCodeArr[readData].pCode[i];
/*每攒够一个字节长度的编码即转存*/
if(writeCodeLen >= CHAR_BIT)
{
writeData = ConvertToCodeData(writeCode);
fwrite(&writeData, UCHAR_SIZE, 1, targetFp);
memset(writeCode, 0, UCHAR_SIZE * CHAR_BIT);
writeCodeLen = 0;
}
}
}
/* 把剩余的不足一字节写入文件 */
if(writeCodeLen != 0)
{
writeData = ConvertToCodeData(writeCode);
fwrite(&writeData, UCHAR_SIZE, 1, targetFp);
}
lastBtyeLen = writeCodeLen;
fsetpos(targetFp, &lastBtyePos);
fwrite(&lastBtyeLen, UCHAR_SIZE, 1, targetFp);
/* 清理 */
for(i = 0; i < CODE_SIZE; ++i)
{
if(dataCodeArr[i].pCode != NULL)
{
free(dataCodeArr[i].pCode);
dataCodeArr[i].pCode = NULL;
}
}
fclose(sourceFp);
fclose(targetFp);
return 0;
}
