static MIValue &ErrorMIValue(String const &msg)
{
static MIValue v;
v.SetError(msg);
return v;
}
// read debugger output analyzing command responses and async output
// things are quite tricky because debugger output seems to be
// slow and we have almost no terminator to stop on -- (gdb) is not
// so reliable as it can happen (strangely) in middle of nothing
MIValue Gdb_MI2::ParseGdb(String const &output, bool wait)
{
MIValue res;
// parse result data
StringStream ss(output);
while(!ss.IsEof())
{
String s;
String str = ss.GetLine();
s = str;
while(str.GetCount() == 1024 && !ss.IsEof())
{
str = ss.GetLine();
s << str;
}
s = TrimBoth(s);
// check 'running' and 'stopped' async output
if(s.StartsWith("*running"))
{
started = true;
stopReason.Clear();
continue;
}
else if(s.StartsWith("*stopped"))
{
stopped = true;
s = '{' + s.Mid(9) + '}';
stopReason = MIValue(s);
continue;
}
// catch process start/stop and store/remove pids
else if(s.StartsWith("=thread-group-started,id="))
{
String id, pid;
int i = s.Find("id=");
if(i < 0)
continue;
i += 4;
while(s[i] && s[i] != '"')
id.Cat(s[i++]);
i = s.Find("pid=");
if(i < 0)
continue;
i += 5;
while(s[i] && s[i] != '"')
pid.Cat(s[i++]);
processes.Add(id, atoi(pid));
continue;
}
else if(s.StartsWith("=thread-group-exited,id="))
{
String id;
int i = s.Find("id=");
if(i < 0)
continue;
i += 4;
while(s[i] && s[i] != '"')
id.Cat(s[i++]);
i = processes.Find(id);
if(i >= 0)
processes.Remove(i);
continue;
}
// skip asynchronous responses
// in future, we could be gather/use them
if(s[0] == '*'|| s[0] == '=')
continue;
// here handling of command responses
// we're not interested either, as we use MI interface
if(s[0] == '~')
continue;
// here handling of target output
// well, for now discard this one too, but it should go on console output
if(s[0] == '~')
continue;
// here handling of gdb log/debug message
// not interesting here
if(s[0] == '&')
continue;
// now we SHALL have something starting with any of
// // "^done", "^running", "^connected", "^error" or "^exit" records
if(s.StartsWith("^done") || s.StartsWith("^running"))
{
// here we've got succesful command output in list form, if any
// shall skip the comma; following can be a serie of pairs,
// or directly an array of maps in form of :
// [{key="value",key="value",...},{key="value"...}...]
int i = 5; // just skip shortest, ^done
while(s[i] && s[i] != ',')
i++;
if(!s[i])
continue;
i++;
if(!s[i])
continue;
res = MIValue(s.Mid(i));
continue;
}
else if(s.StartsWith("^error"))
{
// first array element is reserved for command result status
s = s.Right(12); // '^error,msg=\"'
s = s.Left(s.GetCount() - 1);
res.SetError(s);
}
else
continue;
}
return res;
}
