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//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//
// copyright : (C) 2008 by Eran Ifrah
// file name : consolefinder.cpp
//
// -------------------------------------------------------------------------
// A
// _____ _ _ _ _
// / __ \ | | | | (_) |
// | / \/ ___ __| | ___| | _| |_ ___
// | | / _ \ / _ |/ _ \ | | | __/ _ )
// | \__/\ (_) | (_| | __/ |___| | || __/
// \____/\___/ \__,_|\___\_____/_|\__\___|
//
// F i l e
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
#include "consolefinder.h"
#include "procutils.h"
#include "exelocator.h"
#include "macros.h"
ConsoleFinder::ConsoleFinder()
: m_nConsolePid(0)
, m_consoleCommand(TERMINAL_CMD)
{
}
ConsoleFinder::~ConsoleFinder()
{
FreeConsole();
}
void ConsoleFinder::FreeConsole()
{
if (m_nConsolePid) {
wxKill(m_nConsolePid, wxSIGKILL, NULL, wxKILL_CHILDREN);
m_nConsolePid = 0;
}
}
int ConsoleFinder::RunConsole(const wxString &title)
{
// start the xterm and put the shell to sleep with -e sleep 80000
// fetch the xterm tty so we can issue to gdb a "tty /dev/pts/#"
// redirecting program stdin/stdout/stderr to the xterm console.
#ifndef __WXMSW__
wxString cmd;
cmd = GetConsoleCommand();
cmd.Replace(wxT("$(TITLE)"), title);
cmd.Replace(wxT("$(CMD)"), wxString::Format(wxT("sleep %lu"), 80000 + wxGetProcessId()));
wxLogMessage(wxString::Format(wxT("Launching console: %s"), cmd.c_str()));
m_nConsolePid = wxExecute(cmd, wxEXEC_ASYNC|wxEXEC_MAKE_GROUP_LEADER);
if (m_nConsolePid <= 0) {
return -1;
}
// Issue the PS command to get the /dev/tty device name
// First, wait for the xterm to settle down, else PS won't see the sleep task
wxSleep(1);
m_ConsoleTty = GetConsoleTty(m_nConsolePid);
if (m_ConsoleTty.IsEmpty()) {
FreeConsole();
return -1;
}
return m_nConsolePid;
#else //__WXMSW__
wxUnusedVar(title);
return -1;
#endif
}
wxString ConsoleFinder::GetConsoleTty(int ConsolePid)
{
#ifndef __WXMSW__
// execute the ps x -o command and read PS output to get the /dev/tty field
unsigned long ConsPid = ConsolePid;
wxString psCmd;
wxArrayString psOutput;
wxArrayString psErrors;
psCmd << wxT("ps x -o tty,pid,command");
ProcUtils::ExecuteCommand(psCmd, psOutput);
wxString ConsTtyStr;
wxString ConsPidStr;
ConsPidStr << ConsPid;
//find task with our unique sleep time
wxString uniqueSleepTimeStr;
uniqueSleepTimeStr << wxT("sleep ") << wxString::Format(wxT("%lu"),80000 + ::wxGetProcessId());
// search the output of "ps pid" command
int knt = psOutput.GetCount();
for (int i=knt-1; i>-1; --i) {
psCmd = psOutput.Item(i);
// find the pts/# or tty/# or whatever it's called
// by seaching the output of "ps x -o tty,pid,command" command.
// The output of ps looks like:
// TT PID COMMAND
// pts/0 13342 /bin/sh ./run.sh
// pts/0 13343 /home/pecanpecan/devel/trunk/src/devel/codeblocks
// pts/0 13361 /usr/bin/gdb -nx -fullname -quiet -args ./conio
// pts/0 13362 xterm -font -*-*-*-*-*-*-20-*-*-*-*-*-*-* -T Program Console -e sleep 93343
// pts/2 13363 sleep 93343
// ? 13365 /home/pecan/proj/conio/conio
// pts/1 13370 ps x -o tty,pid,command
if (psCmd.Contains(uniqueSleepTimeStr))
do { // check for correct "sleep" line
if (psCmd.Contains(wxT("-T"))) break; //error;wrong sleep line.
// found "sleep 93343" string, extract tty field
ConsTtyStr = wxT("/dev/") + psCmd.BeforeFirst(' ');
return ConsTtyStr;
} while (0);//if do
}//for
return wxEmptyString;
#else
wxUnusedVar(ConsolePid);
return wxEmptyString;
#endif
}
bool ConsoleFinder::FindConsole(const wxString &title, wxString &consoleName)
{
int pid = RunConsole(title);
if (pid > 0) {
consoleName = m_ConsoleTty;
return true;
}
return false;
}
wxString ConsoleFinder::GetConsoleName()
{
wxString cmd;
#ifdef __WXMSW__
cmd = wxGetenv(wxT("COMSPEC"));
if ( cmd.IsEmpty() ) {
cmd = wxT("\\COMMAND.COM");
}
#else //non-windows
//try to locate the default terminal
wxString terminal;
wxString where;
if (ExeLocator::Locate(wxT("x-terminal-emulator"), where)) {
terminal = wxT("x-terminal-emulator -e ");
} else if (ExeLocator::Locate(wxT("gnome-terminal"), where)) {
terminal = wxT("gnome-terminal -e ");
} else if (ExeLocator::Locate(wxT("konsole"), where)) {
terminal = wxT("konsole");
} else if (ExeLocator::Locate(wxT("terminal"), where)) {
terminal = wxT("terminal -e");
} else if (ExeLocator::Locate(wxT("lxterminal"), where)) {
terminal = wxT("lxterminal -e");
} else if (ExeLocator::Locate(wxT("xterm"), where)) {
terminal = wxT("xterm -e ");
}
if (cmd.IsEmpty()) {
cmd = wxT("xterm -e ");
}
cmd = terminal;
#endif
return cmd;
}
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