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-rw-r--r--grapher/StapParser.cxx370
1 files changed, 224 insertions, 146 deletions
diff --git a/grapher/StapParser.cxx b/grapher/StapParser.cxx
index 6218e229..2595e8cc 100644
--- a/grapher/StapParser.cxx
+++ b/grapher/StapParser.cxx
@@ -1,9 +1,18 @@
+// systemtap grapher
+// Copyright (C) 2009 Red Hat Inc.
+//
+// This file is part of systemtap, and is free software. You can
+// redistribute it and/or modify it under the terms of the GNU General
+// Public License (GPL); either version 2, or (at your option) any
+// later version.
+
#include "StapParser.hxx"
#include <unistd.h>
#include <gtkmm/window.h>
#include <algorithm>
+#include <iomanip>
#include <iostream>
#include <sstream>
#include <cstring>
@@ -16,6 +25,20 @@ namespace systemtap
using namespace std;
using namespace std::tr1;
+ sigc::signal<void, pid_t>& childDiedSignal()
+ {
+ static sigc::signal<void, pid_t> deathSignal;
+ return deathSignal;
+ }
+
+ ParserList parsers;
+
+ sigc::signal<void>& parserListChangedSignal()
+ {
+ static sigc::signal<void> listChangedSignal;
+ return listChangedSignal;
+ }
+
vector<string> commaSplit(const boost::sub_range<Glib::ustring>& range)
{
using namespace boost;
@@ -57,159 +80,176 @@ vector<string> commaSplit(const boost::sub_range<Glib::ustring>& range)
}
bool StapParser::ioCallback(Glib::IOCondition ioCondition)
- {
- using namespace std;
- using std::tr1::shared_ptr;
- using namespace boost;
- if (ioCondition & Glib::IO_HUP)
- {
- _win->hide();
- return true;
- }
- if ((ioCondition & Glib::IO_IN) == 0)
+ {
+ using namespace std;
+ using std::tr1::shared_ptr;
+ using namespace boost;
+ if (ioCondition & Glib::IO_HUP)
+ {
+ if (_catchHUP)
+ {
+ childDiedSignal().emit(getPid());
+ _ioConnection.disconnect();
+ _errIoConnection.disconnect();
+ }
+ return true;
+ }
+ if ((ioCondition & Glib::IO_IN) == 0)
+ return true;
+ char buf[256];
+ ssize_t bytes_read = 0;
+ bytes_read = read(_inFd, buf, sizeof(buf) - 1);
+ if (bytes_read <= 0)
+ {
+ childDiedSignal().emit(getPid());
return true;
- char buf[256];
- ssize_t bytes_read = 0;
- bytes_read = read(_inFd, buf, sizeof(buf) - 1);
- if (bytes_read <= 0)
- {
- _win->hide();
- return true;
- }
- buf[bytes_read] = '\0';
- _buffer += buf;
- string::size_type ret = string::npos;
- while ((ret = _buffer.find('\n')) != string::npos)
- {
- Glib::ustring dataString(_buffer, 0, ret);
- // %DataSet and %CSV declare a data set; all other statements begin with
- // the name of a data set.
- sub_range<Glib::ustring> found;
- if (dataString[0] == '%')
- {
- if ((found = find_first(dataString, "%DataSet:")))
- {
- string setName;
- int hexColor;
- double scale;
- string style;
- istringstream stream(Glib::ustring(found.end(),
- dataString.end()));
- stream >> setName >> scale >> std::hex >> hexColor
- >> style;
- if (style == "bar" || style == "dot")
- {
- std::tr1::shared_ptr<GraphData<double> >
- dataSet(new GraphData<double>);
- dataSet->name = setName;
- if (style == "dot")
- dataSet->style = &GraphStyleDot::instance;
- dataSet->color[0] = (hexColor >> 16) / 255.0;
- dataSet->color[1] = ((hexColor >> 8) & 0xff) / 255.0;
- dataSet->color[2] = (hexColor & 0xff) / 255.0;
- dataSet->scale = scale;
- _dataSets.insert(std::make_pair(setName, dataSet));
- _widget->addGraphData(dataSet);
- }
- else if (style == "discreet")
- {
- std::tr1::shared_ptr<GraphData<string> >
- dataSet(new GraphData<string>);
- dataSet->name = setName;
- dataSet->style = &GraphStyleEvent::instance;
- dataSet->color[0] = (hexColor >> 16) / 255.0;
- dataSet->color[1] = ((hexColor >> 8) & 0xff) / 255.0;
- dataSet->color[2] = (hexColor & 0xff) / 255.0;
- dataSet->scale = scale;
- _dataSets.insert(std::make_pair(setName, dataSet));
- _widget->addGraphData(dataSet);
- }
- }
- else if ((found = find_first(dataString, "%CSV:")))
- {
- vector<string> tokens
- = commaSplit(sub_range<Glib::ustring>(found.end(),
- dataString.end()));
- for (vector<string>::iterator tokIter = tokens.begin(),
- e = tokens.end();
- tokIter != e;
- ++tokIter)
- {
- DataMap::iterator setIter = _dataSets.find(*tokIter);
- if (setIter != _dataSets.end())
- _csv.elements
- .push_back(CSVData::Element(*tokIter,
- setIter->second));
- }
- }
- else
- {
- cerr << "Unknown declaration " << dataString << endl;
- }
- }
- else
- {
- std::istringstream stream(dataString);
- string setName;
- stream >> setName;
- DataMap::iterator itr = _dataSets.find(setName);
- if (itr != _dataSets.end())
- {
- shared_ptr<GraphDataBase> gdata = itr->second;
- string decl;
- // Hack: scan from the beginning of dataString again
- if (findTaggedValue(dataString, "%Title:", decl))
- {
- gdata->title = decl;
- }
- else if (findTaggedValue(dataString, "%XAxisTitle:", decl))
- {
- gdata->xAxisText = decl;
- }
- else if (findTaggedValue(dataString, "%YAxisTitle:", decl))
- {
- gdata->yAxisText = decl;
- }
- else if ((found = find_first(dataString, "%YMax:")))
- {
- double ymax;
- std::istringstream
- stream(Glib::ustring(found.end(), dataString.end()));
- stream >> ymax;
- gdata->scale = ymax;
- }
- else
+ }
+ _buffer.append(buf, bytes_read);
+ string::size_type ret = string::npos;
+ while ((ret = _buffer.find(_lineEndChar)) != string::npos)
+ {
+ Glib::ustring dataString(_buffer, 0, ret);
+ // %DataSet and %CSV declare a data set; all other
+ // statements begin with the name of a data set.
+ // Except %LineEnd :)
+ sub_range<Glib::ustring> found;
+ if (dataString[0] == '%')
+ {
+ if ((found = find_first(dataString, "%DataSet:")))
+ {
+ string setName;
+ int hexColor;
+ double scale;
+ string style;
+ istringstream stream(Glib::ustring(found.end(),
+ dataString.end()));
+ stream >> setName >> scale >> std::hex >> hexColor
+ >> style;
+ if (style == "bar" || style == "dot")
+ {
+ std::tr1::shared_ptr<GraphData<double> >
+ dataSet(new GraphData<double>);
+ dataSet->name = setName;
+ if (style == "dot")
+ dataSet->style = &GraphStyleDot::instance;
+ dataSet->color[0] = (hexColor >> 16) / 255.0;
+ dataSet->color[1] = ((hexColor >> 8) & 0xff) / 255.0;
+ dataSet->color[2] = (hexColor & 0xff) / 255.0;
+ dataSet->scale = scale;
+ _dataSets.insert(std::make_pair(setName, dataSet));
+ getGraphData().push_back(dataSet);
+ graphDataSignal().emit();
+ }
+ else if (style == "discreet")
{
- if (!_csv.elements.empty())
+ std::tr1::shared_ptr<GraphData<string> >
+ dataSet(new GraphData<string>);
+ dataSet->name = setName;
+ dataSet->style = &GraphStyleEvent::instance;
+ dataSet->color[0] = (hexColor >> 16) / 255.0;
+ dataSet->color[1] = ((hexColor >> 8) & 0xff) / 255.0;
+ dataSet->color[2] = (hexColor & 0xff) / 255.0;
+ dataSet->scale = scale;
+ _dataSets.insert(std::make_pair(setName, dataSet));
+ getGraphData().push_back(dataSet);
+ graphDataSignal().emit();
+ }
+ }
+ else if ((found = find_first(dataString, "%CSV:")))
+ {
+ vector<string> tokens
+ = commaSplit(sub_range<Glib::ustring>(found.end(),
+ dataString.end()));
+ for (vector<string>::iterator tokIter = tokens.begin(),
+ e = tokens.end();
+ tokIter != e;
+ ++tokIter)
+ {
+ DataMap::iterator setIter = _dataSets.find(*tokIter);
+ if (setIter != _dataSets.end())
+ _csv.elements
+ .push_back(CSVData::Element(*tokIter,
+ setIter->second));
+ }
+ }
+ else if ((found = find_first(dataString, "%LineEnd:")))
+ {
+ istringstream stream(Glib::ustring(found.end(),
+ dataString.end()));
+ int charAsInt = 0;
+ // parse hex and octal numbers too
+ stream >> std::setbase(0) >> charAsInt;
+ _lineEndChar = static_cast<char>(charAsInt);
+ }
+ else
+ {
+ cerr << "Unknown declaration " << dataString << endl;
+ }
+ }
+ else
+ {
+ std::istringstream stream(dataString);
+ string setName;
+ stream >> setName;
+ DataMap::iterator itr = _dataSets.find(setName);
+ if (itr != _dataSets.end())
+ {
+ shared_ptr<GraphDataBase> gdata = itr->second;
+ string decl;
+ // Hack: scan from the beginning of dataString again
+ if (findTaggedValue(dataString, "%Title:", decl))
+ {
+ gdata->title = decl;
+ }
+ else if (findTaggedValue(dataString, "%XAxisTitle:", decl))
+ {
+ gdata->xAxisText = decl;
+ }
+ else if (findTaggedValue(dataString, "%YAxisTitle:", decl))
+ {
+ gdata->yAxisText = decl;
+ }
+ else if ((found = find_first(dataString, "%YMax:")))
+ {
+ double ymax;
+ std::istringstream
+ stream(Glib::ustring(found.end(), dataString.end()));
+ stream >> ymax;
+ gdata->scale = ymax;
+ }
+ else
+ {
+ if (!_csv.elements.empty())
{
- vector<string> tokens = commaSplit(dataString);
- int i = 0;
- int64_t time;
- vector<string>::iterator tokIter = tokens.begin();
- std::istringstream timeStream(*tokIter++);
- timeStream >> time;
- for (vector<string>::iterator e = tokens.end();
- tokIter != e;
- ++tokIter, ++i)
+ vector<string> tokens = commaSplit(dataString);
+ int i = 0;
+ int64_t time;
+ vector<string>::iterator tokIter = tokens.begin();
+ std::istringstream timeStream(*tokIter++);
+ timeStream >> time;
+ for (vector<string>::iterator e = tokens.end();
+ tokIter != e;
+ ++tokIter, ++i)
{
- parseData(_csv.elements[i].second, time,
- *tokIter);
+ parseData(_csv.elements[i].second, time,
+ *tokIter);
}
}
- else
+ else
{
- int64_t time;
- string data;
- stream >> time >> data;
- parseData(itr->second, time, data);
+ int64_t time;
+ stringbuf data;
+ stream >> time;
+ stream.get(data, _lineEndChar);
+ parseData(itr->second, time, data.str());
}
}
- }
- }
- _buffer.erase(0, ret + 1);
- }
- return true;
- }
+ }
+ }
+ _buffer.erase(0, ret + 1);
+ }
+ return true;
+ }
bool StapParser::errIoCallback(Glib::IOCondition ioCondition)
{
@@ -221,11 +261,49 @@ vector<string> commaSplit(const boost::sub_range<Glib::ustring>& range)
bytes_read = read(_errFd, buf, sizeof(buf) - 1);
if (bytes_read <= 0)
{
- _win->hide();
+ cerr << "StapParser: error reading from stderr!\n";
return true;
}
- if (write(STDOUT_FILENO, buf, bytes_read) < 0)
+ if (write(STDERR_FILENO, buf, bytes_read) < 0)
;
return true;
}
+
+ void StapParser::initIo(int inFd, int errFd, bool catchHUP)
+ {
+ _inFd = inFd;
+ _errFd = errFd;
+ _catchHUP = catchHUP;
+ Glib::IOCondition inCond = Glib::IO_IN;
+ if (catchHUP)
+ inCond |= Glib::IO_HUP;
+ if (_errFd >= 0)
+ {
+ _errIoConnection = Glib::signal_io()
+ .connect(sigc::mem_fun(*this, &StapParser::errIoCallback),
+ _errFd, Glib::IO_IN);
+ }
+ _ioConnection = Glib::signal_io()
+ .connect(sigc::mem_fun(*this, &StapParser::ioCallback),
+ _inFd, inCond);
+
+ }
+
+ void StapParser::disconnect()
+ {
+ if (_ioConnection.connected())
+ _ioConnection.disconnect();
+ if (_errIoConnection.connected())
+ _errIoConnection.disconnect();
+ if (_inFd >= 0)
+ {
+ close(_inFd);
+ _inFd = -1;
+ }
+ if (_errFd >= 0)
+ {
+ close(_errFd);
+ _errFd = -1;
+ }
+ }
}
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