summaryrefslogtreecommitdiffstats
path: root/ksysguard/gui/SensorDisplayLib/ProcessController.cpp
blob: 91851d11322bd9b87e2fcce80ef63174df36e63b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
/*
    KSysGuard, the KDE System Guard

	Copyright (c) 1999 - 2001 Chris Schlaeger <cs@kde.org>

    This program is free software; you can redistribute it and/or
    modify it under the terms version 2 of of the GNU General Public
    License as published by the Free Software Foundation.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

	KSysGuard is currently maintained by Chris Schlaeger <cs@kde.org>.
	Please do not commit any changes without consulting me first. Thanks!

*/

#include <assert.h>

#include <tqtimer.h>

#include <tdeapplication.h>
#include <kdebug.h>
#include <tdelocale.h>
#include <tdemessagebox.h>
#include <kdialogbase.h>
#include <tdelistviewsearchline.h>

#include <ksgrd/SensorManager.h>

#include "ProcessController.moc"
#include "SignalIDs.h"

#include <tqcheckbox.h>
#include <tqcombobox.h>
#include <tqgroupbox.h>
#include <tqlayout.h>

#include <tdeapplication.h>
#include <kpushbutton.h>



ProcessController::ProcessController(TQWidget* parent, const char* name, const TQString &title, bool nf)
	: KSGRD::SensorDisplay(parent, name, title, nf)
{
	dict.setAutoDelete(true);
	dict.insert("Name", new TQString(i18n("Name")));
	dict.insert("PID", new TQString(i18n("PID")));
	dict.insert("PPID", new TQString(i18n("PPID")));
	dict.insert("UID", new TQString(i18n("UID")));
	dict.insert("GID", new TQString(i18n("GID")));
	dict.insert("Status", new TQString(i18n("Status")));
	dict.insert("User%", new TQString(i18n("User%")));
	dict.insert("System%", new TQString(i18n("System%")));
	dict.insert("Nice", new TQString(i18n("Nice")));
	dict.insert("VmSize", new TQString(i18n("VmSize")));
	dict.insert("VmRss", new TQString(i18n("VmRss")));
	dict.insert("Login", new TQString(i18n("Login")));
	dict.insert("Command", new TQString(i18n("Command")));

	// Setup the geometry management.
	gm = new TQVBoxLayout(this, 10);
	TQ_CHECK_PTR(gm);
	gm->addSpacing(15);

	gmSearch = new TQHBoxLayout();
	TQ_CHECK_PTR(gmSearch);
	gm->addLayout(gmSearch, 0);

	// Create the table that lists the processes.
	pList = new ProcessList(this, "pList");
	TQ_CHECK_PTR(pList);
	pList->setShowSortIndicator(true);
	pListSearchLine = new TDEListViewSearchLineWidget(pList, this, "process_list_search_line");
	gmSearch->addWidget(pListSearchLine, 1);

	connect(pList, TQT_SIGNAL(killProcess(int, int)),
			this, TQT_SLOT(killProcess(int, int)));
	connect(pList, TQT_SIGNAL(reniceProcess(const TQValueList<int> &, int)),
			this, TQT_SLOT(reniceProcess(const TQValueList<int> &, int)));
	connect(pList, TQT_SIGNAL(listModified(bool)),
			this, TQT_SLOT(setModified(bool)));

	/* Create the combo box to configure the process filter. The
	 * cbFilter must be created prior to constructing pList as the
	 * pList constructor sets cbFilter to its start value. */
	cbFilter = new TQComboBox(this, "pList_cbFilter");
	TQ_CHECK_PTR(cbFilter);
	gmSearch->addWidget(cbFilter,0);
	cbFilter->insertItem(i18n("All Processes"), 0);
	cbFilter->insertItem(i18n("System Processes"), 1);
	cbFilter->insertItem(i18n("User Processes"), 2);
	cbFilter->insertItem(i18n("Own Processes"), 3);
	cbFilter->setMinimumSize(cbFilter->sizeHint());
	// Create the check box to switch between tree view and list view.
	xbTreeView = new TQCheckBox(i18n("&Tree View"), this, "xbTreeView");
	TQ_CHECK_PTR(xbTreeView);
	xbTreeView->setMinimumSize(xbTreeView->sizeHint());
	connect(xbTreeView, TQT_SIGNAL(toggled(bool)),
			this, TQT_SLOT(setTreeView(bool)));


	/* When the both cbFilter and pList are constructed we can connect the
	 * missing link. */
	connect(cbFilter, TQT_SIGNAL(activated(int)),
			this, TQT_SLOT(filterModeChanged(int)));

	// Create the 'Refresh' button.
	bRefresh = new KPushButton( KGuiItem(  i18n( "&Refresh" ), "reload" ),
            this, "bRefresh" );
	TQ_CHECK_PTR(bRefresh);
	bRefresh->setMinimumSize(bRefresh->sizeHint());
	connect(bRefresh, TQT_SIGNAL(clicked()), this, TQT_SLOT(updateList()));

	// Create the 'Kill' button.
	bKill = new KPushButton(i18n("&Kill"), this, "bKill");
	TQ_CHECK_PTR(bKill);
	bKill->setMinimumSize(bKill->sizeHint());
	connect(bKill, TQT_SIGNAL(clicked()), this, TQT_SLOT(killProcess()));
	/* Disable the kill button until we know that the daemon supports the
	 * kill command. */
	bKill->setEnabled(false);
	killSupported = false;

	gm->addWidget(pList, 1);

	gm1 = new TQHBoxLayout();
	TQ_CHECK_PTR(gm1);
	gm->addLayout(gm1, 0);
	gm1->addStretch();
	gm1->addWidget(xbTreeView);
	gm1->addStretch();
	gm1->addWidget(bRefresh);
	gm1->addStretch();
	gm1->addWidget(bKill);
	gm1->addStretch();
	gm->addSpacing(5);

	gm->activate();

	setPlotterWidget(pList);

	setMinimumSize(sizeHint());
	fixTabOrder(); 
}

void ProcessController::setSearchFocus() {
	//stupid search line widget.  See rant in fixTabOrder
	if(!pListSearchLine->searchLine())
		TQTimer::singleShot(100, this, TQT_SLOT(setSearchFocus()));
	else {
		pListSearchLine->searchLine()->setFocus();
	}
}
void ProcessController::fixTabOrder() {

	//Wow, I hate this search line widget so much.
	//It creates the searchline in a singleshot timer.  This makes it totally unpredictable when searchLine is actually valid.
	//So we set up singleshot timer and call ourselves over and over until it's ready.
	//
	//Did i mention I hate this?
	if(!pListSearchLine->searchLine())
		TQTimer::singleShot(100, this, TQT_SLOT(fixTabOrder()));
	else {
		setTabOrder(pListSearchLine->searchLine(), cbFilter);
		setTabOrder(cbFilter, pList);
		setTabOrder(pList, xbTreeView);
		setTabOrder(xbTreeView, bRefresh);
		setTabOrder(bRefresh, bKill);
	}
}

void
ProcessController::resizeEvent(TQResizeEvent* ev)
{
	if(frame())
		frame()->setGeometry(0, 0, width(), height());

	TQWidget::resizeEvent(ev);
}

bool
ProcessController::addSensor(const TQString& hostName,
							 const TQString& sensorName,
							const TQString& sensorType,
							 const TQString& title)
{
	if (sensorType != "table")
		return (false);

	registerSensor(new KSGRD::SensorProperties(hostName, sensorName, sensorType, title));
	/* This just triggers the first communication. The full set of
	 * requests are send whenever the sensor reconnects (detected in
	 * sensorError(). */

	sendRequest(hostName, "test kill", 4);

	if (title.isEmpty())
		setTitle(i18n("%1: Running Processes").arg(hostName));
	else
		setTitle(title);

	return (true);
}

void
ProcessController::updateList()
{
	sendRequest(sensors().at(0)->hostName(), "ps", 2);
}

void
ProcessController::killProcess(int pid, int sig)
{
	sendRequest(sensors().at(0)->hostName(),
				TQString("kill %1 %2" ).arg(pid).arg(sig), 3);

	if ( !timerOn() )
	    // give ksysguardd time to update its proccess list
	    TQTimer::singleShot(3000, this, TQT_SLOT(updateList()));
	else
	    updateList();
}

void
ProcessController::killProcess()
{
	const TQStringList& selectedAsStrings = pList->getSelectedAsStrings();
	if (selectedAsStrings.isEmpty())
	{
		KMessageBox::sorry(this,
						   i18n("You need to select a process first."));
		return;
	}
	else
	{
		TQString  msg = i18n("Do you want to kill the selected process?",
				"Do you want to kill the %n selected processes?",
				selectedAsStrings.count());

		KDialogBase *dlg = new KDialogBase (  i18n ("Kill Process"), 
						      KDialogBase::Yes | KDialogBase::Cancel,
						      KDialogBase::Yes, KDialogBase::Cancel, this->parentWidget(),
						      "killconfirmation",
			       			      true, true, KGuiItem(i18n("Kill")));

		bool dontAgain = false;
		
		int res = KMessageBox::createKMessageBox(dlg, TQMessageBox::Question,
			                                 msg, selectedAsStrings,
							 i18n("Do not ask again"), &dontAgain, 
							 KMessageBox::Notify);

		if (res != KDialogBase::Yes)
		{
			return;
		}
	}

	const TQValueList<int>& selectedPIds = pList->getSelectedPIds();

	// send kill signal to all seleted processes
	TQValueListConstIterator<int> it;
	for (it = selectedPIds.begin(); it != selectedPIds.end(); ++it)
		sendRequest(sensors().at(0)->hostName(), TQString("kill %1 %2" ).arg(*it)
					.arg(MENU_ID_SIGKILL), 3);

	if ( !timerOn())
		// give ksysguardd time to update its proccess list
		TQTimer::singleShot(3000, this, TQT_SLOT(updateList()));
	else
		updateList();
}

void
ProcessController::reniceProcess(const TQValueList<int> &pids, int niceValue)
{
	for( TQValueList<int>::ConstIterator it = pids.constBegin(), end = pids.constEnd(); it != end; ++it )
		sendRequest(sensors().at(0)->hostName(),
					TQString("setpriority %1 %2" ).arg(*it).arg(niceValue), 5);
	sendRequest(sensors().at(0)->hostName(), "ps", 2);  //update the display afterwards
}

void
ProcessController::answerReceived(int id, const TQString& answer)
{
	/* We received something, so the sensor is probably ok. */
	sensorError(id, false);

	switch (id)
	{
	case 1:
	{
		/* We have received the answer to a ps? command that contains
		 * the information about the table headers. */
		KSGRD::SensorTokenizer lines(answer, '\n');
		if (lines.count() != 2)
		{
			kdDebug (1215) << "ProcessController::answerReceived(1)"
				  "wrong number of lines [" <<  answer << "]" << endl;
			sensorError(id, true);
			return;
		}
		KSGRD::SensorTokenizer headers(lines[0], '\t');
		KSGRD::SensorTokenizer colTypes(lines[1], '\t');

		pList->removeColumns();
		for (unsigned int i = 0; i < headers.count(); i++)
		{
			TQString header;
			if (dict[headers[i]])
				header = *dict[headers[i]];
			else
				header = headers[i];
			pList->addColumn(header, colTypes[i]);
		}

		break;
	}
	case 2:
		/* We have received the answer to a ps command that contains a
		 * list of processes with various additional information. */
		pList->update(answer);
		pListSearchLine->searchLine()->updateSearch(); //re-apply the filter
		break;
	case 3:
	{
		// result of kill operation
		kdDebug(1215) << answer << endl;
		KSGRD::SensorTokenizer vals(answer, '\t');
		switch (vals[0].toInt())
		{
		case 0:	// successful kill operation
			break;
		case 1:	// unknown error
			KSGRD::SensorMgr->notify(
				i18n("Error while attempting to kill process %1.")
				.arg(vals[1]));
			break;
		case 2:
			KSGRD::SensorMgr->notify(
				i18n("Insufficient permissions to kill "
							 "process %1.").arg(vals[1]));
			break;
		case 3:
			KSGRD::SensorMgr->notify(
				i18n("Process %1 has already disappeared.")
				.arg(vals[1]));
			break;
		case 4:
			KSGRD::SensorMgr->notify(i18n("Invalid Signal."));
			break;
		}
		break;
	}
	case 4:
		killSupported = (answer.toInt() == 1);
		pList->setKillSupported(killSupported);
		bKill->setEnabled(killSupported);
		break;
	case 5:
	{
		// result of renice operation
		kdDebug(1215) << answer << endl;
		KSGRD::SensorTokenizer vals(answer, '\t');
		switch (vals[0].toInt())
		{
		case 0:	// successful renice operation
			break;
		case 1:	// unknown error
			KSGRD::SensorMgr->notify(
				i18n("Error while attempting to renice process %1.")
				.arg(vals[1]));
			break;
		case 2:
			KSGRD::SensorMgr->notify(
				i18n("Insufficient permissions to renice "
							 "process %1.").arg(vals[1]));
			break;
		case 3:
			KSGRD::SensorMgr->notify(
				i18n("Process %1 has already disappeared.")
				.arg(vals[1]));
			break;
		case 4:
			KSGRD::SensorMgr->notify(i18n("Invalid argument."));
			break;
		}
		break;
	}
	}
}

void
ProcessController::sensorError(int, bool err)
{
	if (err == sensors().at(0)->isOk())
	{
		if (!err)
		{
			/* Whenever the communication with the sensor has been
			 * (re-)established we need to requests the full set of
			 * properties again, since the back-end might be a new
			 * one. */
			sendRequest(sensors().at(0)->hostName(), "test kill", 4);
			sendRequest(sensors().at(0)->hostName(), "ps?", 1);
			sendRequest(sensors().at(0)->hostName(), "ps", 2);
		}

		/* This happens only when the sensorOk status needs to be changed. */
		sensors().at(0)->setIsOk( !err );
	}
	setSensorOk(sensors().at(0)->isOk());
}

bool
ProcessController::restoreSettings(TQDomElement& element)
{
	bool result = addSensor(element.attribute("hostName"),
							element.attribute("sensorName"), (element.attribute("sensorType").isEmpty() ? "table" : element.attribute("sensorType")),
							TQString::null);

	xbTreeView->setChecked(element.attribute("tree").toInt());
	setTreeView(element.attribute("tree").toInt());

	uint filter = element.attribute("filter").toUInt();
	cbFilter->setCurrentItem(filter);
	filterModeChanged(filter);

	uint col = element.attribute("sortColumn").toUInt();
	bool inc = element.attribute("incrOrder").toUInt();

	if (!pList->load(element))
		return (false);

	pList->setSortColumn(col, inc);

	SensorDisplay::restoreSettings(element);

	setModified(false);

	return (result);
}

bool
ProcessController::saveSettings(TQDomDocument& doc, TQDomElement& element, bool save)
{
	element.setAttribute("hostName", sensors().at(0)->hostName());
	element.setAttribute("sensorName", sensors().at(0)->name());
	element.setAttribute("sensorType", sensors().at(0)->type());
	element.setAttribute("tree", (uint) xbTreeView->isChecked());
	element.setAttribute("filter", cbFilter->currentItem());
	element.setAttribute("sortColumn", pList->getSortColumn());
	element.setAttribute("incrOrder", pList->getIncreasing());

	if (!pList->save(doc, element))
		return (false);

	SensorDisplay::saveSettings(doc, element);

	if (save)
		setModified(false);

	return (true);
}