int main()
{
std::string text(
"Overview\n"
"\n"
"The class templates basic_gzip_compressor and basic_gzip_decompressor perform"
"compression and decompression based on the GZIP format ([Deutsch3]) using"
"Jean-loup Gailly's and Mark Adler's zlib compression library ([Gailly])."
"They are implementation as derived classes of the Zlib Filters. The difference"
"between the GZIP and ZLIB formats is that data in the GZIP contains more header"
"information and a different checksum ([Deutsch1], [Deutsch3]).\n"
"\n"
"Currently, basic_gzip_compressor is a DualUseFilters, but basic_gzip_compressor"
"is only an InputFilter.\n"
"\n"
"Acknowledgments\n"
"\n"
"The gzip Filters were influences by the work of Jeff Garland ([Garland]) and"
"Jonathan de Halleux ([de Halleux]).\n"
"Thanks to Jean-loup Gailly and Mark Adler for making their excellent library"
"available to the public with a Boost-compatible license.\n"
"...\n"
"\n"
"To read more visit:\n"
"http://www.boost.org/doc/libs/1_59_0/libs/iostreams/doc/classes/gzip.html\n"
);
{
std::ofstream compressedFile( "gzip.gz", std::ios_base::out | std::ios_base::binary );
GzipCompressor gzipCompressor( compressedFile );
std::ostream & file = gzipCompressor.getStream();
file << text << std::endl;
}
{
std::ifstream compressedFile( "gzip.gz", std::ios_base::in | std::ios_base::binary );
GzipDecompressor gzipDecompressor( compressedFile );
std::istream & file = gzipDecompressor.getStream();
std::string line;
while( std::getline( file, line ) ){
std::cout << line << std::endl;
}
}
}
void CachegrindLoader::setCalledFile(const QString& name)
{
currentCalledFile = compressedFile(name);
if (!currentCalledFile) {
error(QStringLiteral("Invalid specification of called file, setting to unknown"));
currentCalledFile = _data->file(_emptyString);
}
currentCalledPartFile = currentCalledFile->partFile(_part);
}
void CachegrindLoader::setFile(const QString& name)
{
currentFile = compressedFile(name);
if (!currentFile) {
error(QString("Invalid file specification, setting to unknown"));
currentFile = _data->file(_emptyString);
}
currentPartFile = currentFile->partFile(_part);
currentLine = 0;
currentPartLine = 0;
}
/**
* The main import function...
*/
int CachegrindLoader::loadInternal(TraceData* data,
QIODevice* device, const QString& filename)
{
if (!data || !device) return 0;
_data = data;
_filename = filename;
_lineNo = 0;
loadStart(_filename);
FixFile file(device, _filename);
if (!file.exists()) {
loadFinished(QStringLiteral("File does not exist"));
return 0;
}
int statusProgress = 0;
#if USE_FIXCOST
// FixCost Memory Pool
FixPool* pool = _data->fixPool();
#endif
_part = 0;
partsAdded = 0;
prepareNewPart();
FixString line;
char c;
// current position
nextLineType = SelfCost;
// default if there is no "positions:" line
hasLineInfo = true;
hasAddrInfo = false;
while (file.nextLine(line)) {
_lineNo++;
#if TRACE_LOADER
qDebug() << "[CachegrindLoader] " << _filename << ":" << _lineNo
<< " - '" << QString(line) << "'";
#endif
// if we cannot strip a character, this was an empty line
if (!line.first(c)) continue;
if (c <= '9') {
if (c == '#') continue;
// parse position(s)
if (!parsePosition(line, currentPos)) {
error(QStringLiteral("Invalid position specification '%1'").arg(line));
continue;
}
// go through after big switch
}
else { // if (c > '9')
line.stripFirst(c);
/* in order of probability */
switch(c) {
case 'f':
// fl=
if (line.stripPrefix("l=")) {
setFile(line);
// this is the default for new functions
currentFunctionFile = currentFile;
continue;
}
// fi=, fe=
if (line.stripPrefix("i=") ||
line.stripPrefix("e=")) {
setFile(line);
continue;
}
// fn=
if (line.stripPrefix("n=")) {
if (currentFile != currentFunctionFile)
currentFile = currentFunctionFile;
setFunction(line);
// on a new function, update status
int progress = (int)(100.0 * file.current() / file.len() +.5);
if (progress != statusProgress) {
statusProgress = progress;
/* When this signal is connected, it most probably
* should lead to GUI update. Thus, when multiple
* "long operations" (like file loading) are in progress,
* this can temporarly switch to another operation.
*/
loadProgress(statusProgress);
}
continue;
}
break;
case 'c':
// cob=
if (line.stripPrefix("ob=")) {
setCalledObject(line);
continue;
}
// cfi= / cfl=
if (line.stripPrefix("fl=") ||
line.stripPrefix("fi=")) {
setCalledFile(line);
continue;
}
// cfn=
if (line.stripPrefix("fn=")) {
setCalledFunction(line);
continue;
}
// calls=
if (line.stripPrefix("alls=")) {
// ignore long lines...
line.stripUInt64(currentCallCount);
nextLineType = CallCost;
continue;
}
// cmd:
if (line.stripPrefix("md:")) {
QString command = QString(line).trimmed();
if (!_data->command().isEmpty() &&
_data->command() != command) {
error(QStringLiteral("Redefined command, was '%1'").arg(_data->command()));
}
_data->setCommand(command);
continue;
}
// creator:
if (line.stripPrefix("reator:")) {
// ignore ...
continue;
}
break;
case 'j':
// jcnd=
if (line.stripPrefix("cnd=")) {
bool valid;
valid = line.stripUInt64(jumpsFollowed) &&
line.stripPrefix("/") &&
line.stripUInt64(jumpsExecuted) &&
parsePosition(line, targetPos);
if (!valid) {
error(QStringLiteral("Invalid line after 'jcnd'"));
}
else
nextLineType = CondJump;
continue;
}
if (line.stripPrefix("ump=")) {
bool valid;
valid = line.stripUInt64(jumpsExecuted) &&
parsePosition(line, targetPos);
if (!valid) {
error(QStringLiteral("Invalid line after 'jump'"));
}
else
nextLineType = BoringJump;
continue;
}
// jfi=
if (line.stripPrefix("fi=")) {
currentJumpToFile = compressedFile(line);
continue;
}
// jfn=
if (line.stripPrefix("fn=")) {
if (!currentJumpToFile) {
// !=0 as functions needs file
currentJumpToFile = currentFile;
}
currentJumpToFunction =
compressedFunction(line,
currentJumpToFile,
currentObject);
continue;
}
break;
case 'o':
// ob=
if (line.stripPrefix("b=")) {
setObject(line);
continue;
}
break;
case '#':
continue;
case 'a':
// "arch: arm"
if (line.stripPrefix("rch: arm")) {
TraceData::Arch a = _data->architecture();
if ((a != TraceData::ArchUnknown) &&
(a != TraceData::ArchARM)) {
error(QStringLiteral("Redefined architecture!"));
}
_data->setArchitecture(TraceData::ArchARM);
continue;
}
break;
case 't':
// totals:
if (line.stripPrefix("otals:")) continue;
// thread:
if (line.stripPrefix("hread:")) {
prepareNewPart();
_part->setThreadID(QString(line).toInt());
continue;
}
// timeframe (BB):
if (line.stripPrefix("imeframe (BB):")) {
_part->setTimeframe(line);
continue;
}
break;
case 'd':
// desc:
if (line.stripPrefix("esc:")) {
line.stripSurroundingSpaces();
// desc: Trigger:
if (line.stripPrefix("Trigger:")) {
_part->setTrigger(line);
}
continue;
}
break;
case 'e':
// events:
if (line.stripPrefix("vents:")) {
prepareNewPart();
mapping = _data->eventTypes()->createMapping(line);
_part->setEventMapping(mapping);
continue;
}
// event:<name>[=<formula>][:<long name>]
if (line.stripPrefix("vent:")) {
line.stripSurroundingSpaces();
FixString e, f, l;
if (!line.stripName(e)) {
error(QStringLiteral("Invalid event"));
continue;
}
line.stripSpaces();
if (!line.stripFirst(c)) continue;
if (c=='=') f = line.stripUntil(':');
line.stripSpaces();
// add to known cost types
if (line.isEmpty()) line = e;
EventType::add(new EventType(e,line,f));
continue;
}
break;
case 'p':
// part:
if (line.stripPrefix("art:")) {
prepareNewPart();
_part->setPartNumber(QString(line).toInt());
continue;
}
// pid:
if (line.stripPrefix("id:")) {
prepareNewPart();
_part->setProcessID(QString(line).toInt());
continue;
}
// positions:
if (line.stripPrefix("ositions:")) {
prepareNewPart();
QString positions(line);
hasLineInfo = positions.contains(QStringLiteral("line"));
hasAddrInfo = positions.contains(QStringLiteral("instr"));
continue;
}
break;
case 'v':
// version:
if (line.stripPrefix("ersion:")) {
// ignore for now
continue;
}
break;
case 's':
// summary:
if (line.stripPrefix("ummary:")) {
if (!mapping) {
error(QStringLiteral("No event line found. Skipping file"));
delete _part;
return false;
}
_part->totals()->set(mapping, line);
continue;
}
case 'r':
// rcalls= (deprecated)
if (line.stripPrefix("calls=")) {
// handle like normal calls: we need the sum of call count
// recursive cost is discarded in cycle detection
line.stripUInt64(currentCallCount);
nextLineType = CallCost;
warning(QStringLiteral("Old file format using deprecated 'rcalls'"));
continue;
}
break;
default:
break;
}
error(QStringLiteral("Invalid line '%1%2'").arg(c).arg(line));
continue;
}
if (!mapping) {
error(QStringLiteral("No event line found. Skipping file"));
delete _part;
return false;
}
// for a cost line, we always need a current function
ensureFunction();
if (!currentFunctionSource ||
(currentFunctionSource->file() != currentFile)) {
currentFunctionSource = currentFunction->sourceFile(currentFile,
true);
}
#if !USE_FIXCOST
if (hasAddrInfo) {
if (!currentInstr ||
(currentInstr->addr() != currentPos.fromAddr)) {
currentInstr = currentFunction->instr(currentPos.fromAddr,
true);
if (!currentInstr) {
error(QString("Invalid address '%1'").arg(currentPos.fromAddr.toString()));
continue;
}
currentPartInstr = currentInstr->partInstr(_part,
currentPartFunction);
}
}
if (hasLineInfo) {
if (!currentLine ||
(currentLine->lineno() != currentPos.fromLine)) {
currentLine = currentFunctionSource->line(currentPos.fromLine,
true);
currentPartLine = currentLine->partLine(_part,
currentPartFunction);
}
if (hasAddrInfo && currentInstr)
currentInstr->setLine(currentLine);
}
#endif
#if TRACE_LOADER
qDebug() << _filename << ":" << _lineNo;
qDebug() << " currentInstr "
<< (currentInstr ? qPrintable(currentInstr->toString()) : ".");
qDebug() << " currentLine "
<< (currentLine ? qPrintable(currentLine->toString()) : ".")
<< "( file " << currentFile->name() << ")";
qDebug() << " currentFunction "
<< qPrintable(currentFunction->prettyName());
qDebug() << " currentCalled "
<< (currentCalledFunction ? qPrintable(currentCalledFunction->prettyName()) : ".");
#endif
// create cost item
if (nextLineType == SelfCost) {
#if USE_FIXCOST
new (pool) FixCost(_part, pool,
currentFunctionSource,
currentPos,
currentPartFunction,
line);
#else
if (hasAddrInfo) {
TracePartInstr* partInstr;
partInstr = currentInstr->partInstr(_part, currentPartFunction);
if (hasLineInfo) {
// we need to set <line> back after reading for the line
int l = line.len();
const char* s = line.ascii();
partInstr->addCost(mapping, line);
line.set(s,l);
}
else
partInstr->addCost(mapping, line);
}
if (hasLineInfo) {
TracePartLine* partLine;
partLine = currentLine->partLine(_part, currentPartFunction);
partLine->addCost(mapping, line);
}
#endif
if (!line.isEmpty()) {
error(QStringLiteral("Garbage at end of cost line ('%1')").arg(line));
}
}
else if (nextLineType == CallCost) {
nextLineType = SelfCost;
TraceCall* calling = currentFunction->calling(currentCalledFunction);
TracePartCall* partCalling =
calling->partCall(_part, currentPartFunction,
currentCalledPartFunction);
#if USE_FIXCOST
FixCallCost* fcc;
fcc = new (pool) FixCallCost(_part, pool,
currentFunctionSource,
hasLineInfo ? currentPos.fromLine : 0,
hasAddrInfo ? currentPos.fromAddr : Addr(0),
partCalling,
currentCallCount, line);
fcc->setMax(_data->callMax());
_data->updateMaxCallCount(fcc->callCount());
#else
if (hasAddrInfo) {
TraceInstrCall* instrCall;
TracePartInstrCall* partInstrCall;
instrCall = calling->instrCall(currentInstr);
partInstrCall = instrCall->partInstrCall(_part, partCalling);
partInstrCall->addCallCount(currentCallCount);
if (hasLineInfo) {
// we need to set <line> back after reading for the line
int l = line.len();
const char* s = line.ascii();
partInstrCall->addCost(mapping, line);
line.set(s,l);
}
else
partInstrCall->addCost(mapping, line);
// update maximum of call cost
_data->callMax()->maxCost(partInstrCall);
_data->updateMaxCallCount(partInstrCall->callCount());
}
if (hasLineInfo) {
TraceLineCall* lineCall;
TracePartLineCall* partLineCall;
lineCall = calling->lineCall(currentLine);
partLineCall = lineCall->partLineCall(_part, partCalling);
partLineCall->addCallCount(currentCallCount);
partLineCall->addCost(mapping, line);
// update maximum of call cost
_data->callMax()->maxCost(partLineCall);
_data->updateMaxCallCount(partLineCall->callCount());
}
#endif
currentCalledFile = 0;
currentCalledPartFile = 0;
currentCalledObject = 0;
currentCalledPartObject = 0;
currentCallCount = 0;
if (!line.isEmpty()) {
error(QStringLiteral("Garbage at end of call cost line ('%1')").arg(line));
}
}
else { // (nextLineType == BoringJump || nextLineType == CondJump)
TraceFunctionSource* targetSource;
if (!currentJumpToFunction)
currentJumpToFunction = currentFunction;
targetSource = (currentJumpToFile) ?
currentJumpToFunction->sourceFile(currentJumpToFile, true) :
currentFunctionSource;
#if USE_FIXCOST
new (pool) FixJump(_part, pool,
/* source */
hasLineInfo ? currentPos.fromLine : 0,
hasAddrInfo ? currentPos.fromAddr : 0,
currentPartFunction,
currentFunctionSource,
/* target */
hasLineInfo ? targetPos.fromLine : 0,
hasAddrInfo ? targetPos.fromAddr : Addr(0),
currentJumpToFunction,
targetSource,
(nextLineType == CondJump),
jumpsExecuted, jumpsFollowed);
#else
if (hasAddrInfo) {
TraceInstr* jumpToInstr;
TraceInstrJump* instrJump;
TracePartInstrJump* partInstrJump;
jumpToInstr = currentJumpToFunction->instr(targetPos.fromAddr,
true);
instrJump = currentInstr->instrJump(jumpToInstr,
(nextLineType == CondJump));
partInstrJump = instrJump->partInstrJump(_part);
partInstrJump->addExecutedCount(jumpsExecuted);
if (nextLineType == CondJump)
partInstrJump->addFollowedCount(jumpsFollowed);
}
if (hasLineInfo) {
TraceLine* jumpToLine;
TraceLineJump* lineJump;
TracePartLineJump* partLineJump;
jumpToLine = targetSource->line(targetPos.fromLine, true);
lineJump = currentLine->lineJump(jumpToLine,
(nextLineType == CondJump));
partLineJump = lineJump->partLineJump(_part);
partLineJump->addExecutedCount(jumpsExecuted);
if (nextLineType == CondJump)
partLineJump->addFollowedCount(jumpsFollowed);
}
#endif
if (0) {
qDebug() << _filename << ":" << _lineNo
<< " - jump from 0x" << currentPos.fromAddr.toString()
<< " (line " << currentPos.fromLine
<< ") to 0x" << targetPos.fromAddr.toString()
<< " (line " << targetPos.fromLine << ")";
if (nextLineType == BoringJump)
qDebug() << " Boring Jump, count " << jumpsExecuted.pretty();
else
qDebug() << " Cond. Jump, followed " << jumpsFollowed.pretty()
<< ", executed " << jumpsExecuted.pretty();
}
nextLineType = SelfCost;
currentJumpToFunction = 0;
currentJumpToFile = 0;
if (!line.isEmpty()) {
error(QStringLiteral("Garbage at end of jump cost line ('%1')").arg(line));
}
}
}
loadFinished();
if (mapping) {
_part->invalidate();
_part->totals()->clear();
_part->totals()->addCost(_part);
data->addPart(_part);
partsAdded++;
}
else {
delete _part;
}
device->close();
return partsAdded;
}
