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// 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 "GraphData.hxx"
#include <string>
#include <tr1/memory>
#include <unistd.h>
namespace systemtap
{
// arguments and script for a stap process
struct StapProcess
{
StapProcess(pid_t pid_ = -1) : argv(0), pid(pid_) {}
std::string stapArgs;
std::string script;
std::string scriptArgs;
// arguments passed from a single array, like from the command line.
char **argv;
// -1 if the grapher is reading from stdin
pid_t pid;
};
class StapParser
{
std::string _buffer;
typedef std::map<std::string, std::tr1::shared_ptr<GraphDataBase> > DataMap;
DataMap _dataSets;
CSVData _csv;
int _errFd;
int _inFd;
unsigned char _lineEndChar;
bool _catchHUP;
std::tr1::shared_ptr<StapProcess> _process;
sigc::connection _ioConnection;
sigc::connection _errIoConnection;
public:
StapParser()
: _errFd(-1), _inFd(-1), _lineEndChar('\n'), _catchHUP(false)
{
}
void parseData(std::tr1::shared_ptr<GraphDataBase> gdata,
int64_t time, const std::string& dataString);
bool ioCallback(Glib::IOCondition ioCondition);
bool errIoCallback(Glib::IOCondition ioCondition);
int getErrFd() const { return _errFd; }
void setErrFd(int fd) { _errFd = fd; }
int getInFd() const { return _inFd; }
void setInFd(int fd) { _inFd = fd; }
pid_t getPid() const
{
if (_process)
return _process->pid;
else
return -1;
}
std::tr1::shared_ptr<StapProcess> getProcess() { return _process; }
void setProcess(std::tr1::shared_ptr<StapProcess> process)
{
_process = process;
}
void initIo(int inFd, int errFd, bool catchHUP);
void disconnect();
};
sigc::signal<void, pid_t>& childDiedSignal();
typedef std::vector<std::tr1::shared_ptr<StapParser> > ParserList;
extern ParserList parsers;
sigc::signal<void>& parserListChangedSignal();
}
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