7 replies to this topic

[emanuel]

Hi draemies,

I have got problems coding a plugin, which can start all other Plugins.

Can you help me finding a solution?

First I have tryed to start like this:

eZapPlugins plugins(eZapPlugins::StandardPlugin);
		if ( plugins.execPluginByName("tuxtxt.cfg") != "OK" )
			plugins.execPluginByName("_tuxtxt.cfg");

but the Plugin crashed.

then I found a solution, but it only can start Plugins like jukebox, rss, ...

trying to start tuxtxt, tuxcom, failed/or crashed with reboot. Tuxterm for Example crashes enigma-skin.

#include <stdio.h>
#include <plugin.h>
#include <dlfcn.h>

#include <lib/gui/ewindow.h>
#include <lib/gui/elabel.h>
#include <lib/gui/ebutton.h>
#include <lib/gui/emessage.h>
#include <src/enigma.h>

//funktions
int pl_exec(char *filename);
char * find_file (const char *file);



//find_file checking path to plugins
char * find_file (const char *file)
{
  struct stat st;
  static char filename[256];

  printf ("FINDFILE: file=(%s)\n", file);

  sprintf ( filename, "/usr/lib/tuxbox/plugins/%s", file);
  if (stat (filename, &st) == 0)
    return filename;
  sprintf ( filename, "/var/tuxbox/plugins/%s", file);
  if (stat (filename, &st) == 0)
    return filename;
  sprintf ( filename, "/lib/tuxbox/plugins/%s", file);
  if (stat (filename, &st) == 0)
    return filename;
  sprintf ( filename, "/var/bin/%s", file);
  if (stat (filename, &st) == 0)
    return filename;
  sprintf ( filename, "/usr/bin/%s", file);
  if (stat (filename, &st) == 0)
    return filename;
  sprintf ( filename, "/bin/%s", file);
  if (stat (filename, &st) == 0)
    return filename;

  //printf ("NOT FOUND\n");
  strcpy (filename, file);
  return filename;
}

//controlling handle of plugins
int pl_exec(char *so)
{
  int ok = 0;
  void *handle;
  char filename[256];
  char *error;
  int (*do_plugin_exec) (PluginParam * par);

  strcpy (filename, find_file (so) );

  ok = 1;
  if (ok == 1)
    {
      handle = dlopen (filename, RTLD_GLOBAL | RTLD_NOW);
      if (!handle)
        {
          fprintf (stderr, "%s\n", dlerror ());
          ok = 0;
        }
      dlerror ();               /* Clear any existing error */
      *(void **) (&do_plugin_exec) = dlsym (handle, "plugin_exec");
      if ((error = dlerror ()) != NULL)
        {
          fprintf (stderr, "%s\n", error);
          ok = 0;
        }
      if (ok == 1)
        {
          (*do_plugin_exec) (NULL);
          dlclose (handle);
        }
    }

  return ok;
}

// The Class declaration of our Main Window
class MyMainWindow: public eWindow
{
	// the label1 to show the text
	eLabel *label1;
	// the button
	eButton *button_ok;
	eString *plug;
	void MyMainWindow::exeplug();
public:
	// the constructor.
	MyMainWindow();
	// the destructor.
	~MyMainWindow();
};

// The plugin entry point, Here start the code execution
extern "C" int plugin_exec( PluginParam *par )
{
	// our demo dialog instance.
	MyMainWindow dlg;
	// show the dialog...
	dlg.show();
	// give control to dialog.. (the dialog is modal!)
	int result=dlg.exec();
	// and after it, hide it again.
	dlg.hide();
	return result;
}

//exec a plugin
void MyMainWindow::exeplug()
{ this->hide();

if ( !pl_exec("jukebox.so") )
    {
      eMessageBox msg (_("Cannot find the 'jukebox.so' plugin"), _("Cannot find plugin"), eMessageBox::btOK | eMessageBox::iconError);
      msg.show ();
      msg.exec ();
      msg.hide ();
    }

this->show ();
}

MyMainWindow::MyMainWindow(): eWindow(1)
{
	// move our dialog to 100.100...
	cmove(ePoint(100, 100));
	// ...and give x and y dimensions.
	cresize(eSize(520, 376));
	// set a title.
	setText("panel");
	// create a label1 to show a text.
	label1=new eLabel(this);
	// give a position
	label1->move(ePoint(50, 50));
	// set the label1 dimensions
	label1->resize(eSize(300, 100));
	// set the label1 text
	label1->setText("Press Button to launch jukebox!!");

	// create the button
	button_ok = new eButton(this);
	// set the button text
	button_ok->setText("start");
	// set position
	button_ok->move(ePoint((clientrect.width() - 90)/2, clientrect.height() - 60));
	// set size
	button_ok->resize(eSize(90, 40));
	// set shortcut and pixmap
	button_ok->setShortcut("green");
	button_ok->setShortcutPixmap("green");
	// decore with a frame
	button_ok->loadDeco();
	// function to call when buton is pressed
	CONNECT(button_ok->selected, MyMainWindow::exeplug);
	// set focus to the button
	setFocus(button_ok);

}

MyMainWindow::~MyMainWindow()
{
}

thanks a lot

CU Emanuel

[pieterg]

To be honest, I don't think a plugin was ever supposed to start another plugin.
Only enigma can do that, and it stays in a 'loop' while the plugin is running, this code was never meant to be reentrant.

[ims]

Why you dont use call plugins from own PPanel ?


...
<plugin name="Bitrate viewer"
target="bitrate.cfg"
helptext="Bitrate viewer"/>

...

[emanuel]

Hi,

yes it stands in a loop, waiting for the exit of the embeded plugin "jukebox" like the Enigma EXTENTION-plugins eWidged do too.

This is no problem.

using PPanel: If there is a way to start a userdefined *.XML direkt from the yellowbutton, and having the common PPanel on bluebutton. It would be a good solution for me, but for other imageuser this plugin should work to. (sorting plugins, scrips, ...)

CU Emanuel;)

[pieterg]

I don't mean the widget run loop, but the plugin exec loop. It's not built to be reentrant.

[emanuel]

I understand,

but the flexmenu-plugin for example kann do that.

by executing sh:

wget -O- http://root:dreambox@127.0.0.1/cgi-bin/startPlugin?name=jukebox.cfg

I think flexmenu exit, an starts then the script, but how - I don't know.

CU Emanuel

[hemertje]

flexmenu is gemini, not PLi

[emanuel]

flexmenu is only translated by a member of Gemini for DB.
It comes from dbox, supported by keyword.

but src is closed.