summaryrefslogtreecommitdiffstats
path: root/ksim/monitors/disk/ksimdisk.cpp
blob: 2365e19cc3ccf242384846be5352f35b0f8e70d7 (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
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
/*  ksim - a system monitor for kde
 *
 *  Copyright (C) 2001  Robbie Ward <linuxphreak@gmx.co.uk>
 *
 *  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.
 *
 *  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.
 */

#include "ksimdisk.h"
#include "ksimdisk.moc"

#include <tqtextstream.h>
#include <tqregexp.h>
#include <tqtimer.h>
#include <tqlayout.h>
#include <tqradiobutton.h>
#include <tqvbuttongroup.h>
#include <tqpushbutton.h>

#include <kdebug.h>
#include <kaboutapplication.h>
#include <kaboutdata.h>
#include <klocale.h>
#include <kapplication.h>
#include <klistview.h>
#include <kinputdialog.h>
#include <kconfig.h>

#include <chart.h>
#include <progress.h>
#include <themetypes.h>

#if defined(__DragonFly__)
#include <sys/time.h>
#include <sys/param.h>
#include <sys/resource.h>
#include <devstat.h>
#include <stdlib.h>
#elif defined(Q_OS_FREEBSD)
#include <sys/param.h>
#if __FreeBSD_version < 500101
#include <sys/dkstat.h>
#else
#include <sys/resource.h>
#endif
#include <devstat.h>
#include <stdlib.h>
#endif

#ifdef Q_OS_LINUX
#include <linux/major.h>
#endif

#include <iostream>

#define DISK_SPEED 1000

KSIM_INIT_PLUGIN(DiskPlugin)

DiskPlugin::DiskPlugin(const char *name)
   : KSim::PluginObject(name)
{
  setConfigFileName(instanceName());
}

DiskPlugin::~DiskPlugin()
{
}

KSim::PluginView *DiskPlugin::createView(const char *className)
{
  return new DiskView(this, className);
}

KSim::PluginPage *DiskPlugin::createConfigPage(const char *className)
{
  return new DiskConfig(this, className);
}

void DiskPlugin::showAbout()
{
  TQString version = kapp->aboutData()->version();

  KAboutData aboutData(instanceName(),
     I18N_NOOP("KSim Disk Plugin"), version.latin1(),
     I18N_NOOP("A disk monitor plugin for KSim"),
     KAboutData::License_GPL, "(C) 2001 Robbie Ward");

  aboutData.addAuthor("Robbie Ward", I18N_NOOP("Author"),
     "linuxphreak@gmx.co.uk");

  KAboutApplication(&aboutData).exec();
}

DiskView::DiskView(KSim::PluginObject *tqparent, const char *name)
   : KSim::PluginView(tqparent, name)
{
#ifdef Q_OS_LINUX
  m_bLinux24 = true;
  m_procStream = 0L;
  if ((m_procFile = fopen("/proc/stat", "r")))
    m_procStream = new TQTextStream(m_procFile, IO_ReadOnly);
#endif

  config()->setGroup("DiskPlugin");
  m_list = config()->readListEntry("Disks", TQStringList() << "complete");
  m_useSeperatly = config()->readBoolEntry("UseSeperatly", true);

  m_firstTime = 1;
  m_addAll = false;
  m_layout = new TQVBoxLayout(this);
  TQSpacerItem *item = new TQSpacerItem(0, 0, TQSizePolicy::Expanding, TQSizePolicy::Expanding);
  m_layout->addItem(item);

  init();

  m_timer = new TQTimer(this);
  connect(m_timer, TQT_SIGNAL(timeout()), TQT_SLOT(updateDisplay()));
  m_timer->start(DISK_SPEED);
  updateDisplay();
}

DiskView::~DiskView()
{
#ifdef Q_OS_LINUX
  delete m_procStream;

  if (m_procFile)
    fclose(m_procFile);
#endif
}

void DiskView::reparseConfig()
{
  config()->setGroup("DiskPlugin");
  TQStringList list = config()->readListEntry("Disks", TQStringList() << "complete");
  m_useSeperatly = config()->readBoolEntry("UseSeperatly", true);

  if (list != m_list) {
    m_list = list;
    m_timer->stop();
    cleanup();

    TQPtrListIterator<DiskPair> it(m_diskList);
    for (; it.current(); ++it) {
      delete it.current()->first;
      delete it.current()->second;
    }

    m_diskList.clear();
    init();
    m_timer->start(DISK_SPEED);
    updateDisplay();
  }
}

DiskView::DiskData DiskView::findDiskData(const DiskList& diskList, TQString diskName)
{
  if (diskName == "complete")
     diskName = i18n("All Disks");

  DiskView::DiskList::ConstIterator disk;
  for (disk = diskList.begin(); disk != diskList.end(); ++disk)
     if ((*disk).name == diskName)
        return *disk;

  // Not found
  DiskView::DiskData dummy;
  dummy.name = "["+diskName+"]";
  return dummy;  
}

// Kind of messy code, dont ya think?
void DiskView::updateDisplay()
{
  DiskList diskList;

  updateData(diskList);

  if (m_addAll)
  {
    DiskData all;
    all.name = i18n("All Disks");

    for (DiskList::ConstIterator disk = diskList.begin(); 
         disk != diskList.end(); ++disk)
    {
      all += (*disk);
    }

    diskList.prepend(all);
  }

  // merge all the disks into one
  TQPtrListIterator<DiskPair> it(m_diskList);
  for (int i = 0; it.current(); ++it, ++i) {
    DiskData diskData = findDiskData(diskList, m_list[i]);
    m_data[i].second = m_data[i].first;
    m_data[i].first = diskData;
    diskData -= m_data[i].second;
    unsigned long diff = diskData.readBlocks + diskData.writeBlocks;
    if (m_firstTime)
      diff = diskData.readBlocks = diskData.writeBlocks = 0;

    if (m_useSeperatly) {
      it.current()->first->setValue(diskData.readBlocks, diskData.writeBlocks);
      it.current()->first->setText(i18n("in: %1k")
         .tqarg(KGlobal::locale()->formatNumber((float)diskData.readBlocks / 1024.0, 1)),
         i18n("out: %1k").tqarg(KGlobal::locale()->formatNumber((float)diskData.writeBlocks / 1024.0, 1)));
    }
    else {
      it.current()->first->setValue(diff, 0);
      it.current()->first->setText(i18n("%1k")
         .tqarg(KGlobal::locale()->formatNumber((float)diff / 1024.0, 1)));
    }

    it.current()->second->setMaxValue(it.current()->first->maxValue());
    it.current()->second->setText(diskData.name);
    it.current()->second->setValue(diff);
  }

  m_firstTime = 0;
}

void DiskView::updateData(DiskList &disks)
{
#ifdef Q_OS_LINUX
  if (!m_procStream)
     return;

  m_procStream->tqdevice()->reset();
  fseek(m_procFile, 0L, SEEK_SET);

  if (m_bLinux24)
  {
    // here we need a regexp to match something like:
    // (3,0):(108911,48080,1713380,60831,1102644)
    TQRegExp regexp("\\([0-9]+,[0-9]+\\):\\([0-9]+,[0-9]+,[0-9]+,[0-9]+,[0-9]+\\)");
    TQString content = m_procStream->read();
    if (content.find("disk_io") == -1)
    {
       m_bLinux24 = false;
       
       delete m_procStream;
       m_procStream = 0;
       fclose(m_procFile);
       
       if ((m_procFile = fopen("/proc/diskstats", "r")))
          m_procStream = new TQTextStream(m_procFile, IO_ReadOnly);
       
       updateData(disks);
       return;
    }
    int idx = 0;
    while ((idx = regexp.search(content, idx)) != -1)
    {
      idx += regexp.matchedLength();
      TQString diskStr = regexp.cap(0);
      diskStr.replace(':', ',');
      diskStr.replace(TQRegExp("\\)?\\(?"), TQString());

      TQStringList list = TQStringList::split(',', diskStr);
      if (list.count() < 7)
        continue;

      DiskData diskData;
      diskData.major = list[0].toInt();
      diskData.minor = list[1].toInt();
      diskData.name = diskName( diskData.major, diskData.minor );
      diskData.total = list[2].toULong();
      diskData.readIO = list[3].toULong();
      diskData.readBlocks = list[4].toULong();
      diskData.writeIO = list[5].toULong();
      diskData.writeBlocks = list[6].toULong();
      disks.append(diskData);
    }
  }
  else
  {
    // 3    0 hda 564142 160009 14123957 12369403 1052983 2801992 30905928 78981451 0 4531584 91518334
    // The 11 fields after the device name are defined as follows:
    // Field  1 -- # of reads issued
    //    This is the total number of reads completed successfully.
    // Field  2 -- # of reads merged, 
    //    Reads and writes which are adjacent to each other may be merged for
    //    efficiency.  Thus two 4K reads may become one 8K read before it is
    //    ultimately handed to the disk, and so it will be counted (and queued)
    //    as only one I/O.  This field lets you know how often this was done.
    // Field  3 -- # of sectors read
    //    This is the total number of sectors read successfully.
    // Field  4 -- # of milliseconds spent reading
    //    This is the total number of milliseconds spent by all reads (as
    //    measured from __make_request() to end_that_request_last()).
    // Field  5 -- # of writes completed
    //    This is the total number of writes completed successfully.
    // Field  6 -- # of writes merged
    //    See field 2
    // Field  7 -- # of sectors written
    //    This is the total number of sectors written successfully.
    // Field  8 -- # of milliseconds spent writing
    //    This is the total number of milliseconds spent by all writes (as
    //    measured from __make_request() to end_that_request_last()).
    // Field  9 -- # of I/Os currently in progress
    //    The only field that should go to zero. Incremented as requests are
    //    given to appropriate request_queue_t and decremented as they finish.
    // Field 10 -- # of milliseconds spent doing I/Os
    //    This field is increases so long as field 9 is nonzero.
    // Field 11 -- weighted # of milliseconds spent doing I/Os
    //    This field is incremented at each I/O start, I/O completion, I/O
    //    merge, or read of these stats by the number of I/Os in progress
    //    (field 9) times the number of milliseconds spent doing I/O since the
    //    last update of this field.  This can provide an easy measure of both
    //    I/O completion time and the backlog that may be accumulating.
    TQString content = m_procStream->read();
    TQStringList lines = TQStringList::split('\n', content);

    for(TQStringList::ConstIterator it = lines.begin();
        it != lines.end(); ++it)
    {
      TQString diskStr = (*it).simplifyWhiteSpace();
      TQStringList list = TQStringList::split(' ', diskStr);
      if (list.count() < 14)
        continue;

      DiskData diskData;
      diskData.major = list[0].toInt();
      diskData.minor = list[1].toInt();
      diskData.name = list[2];
      diskData.readIO = 0;
      diskData.readBlocks = list[3+2].toULong();
      diskData.writeIO = 0;
      diskData.writeBlocks = list[7+2].toULong();
      diskData.total = diskData.readBlocks + diskData.writeBlocks;
      disks.append(diskData);
    }
  }

#endif

#ifdef Q_OS_FREEBSD
#if defined(__DragonFly__) || __FreeBSD_version < 500107
#define	devstat_getdevs(fd, stats)	getdevs(stats)
#define	devstat_selectdevs		selectdevs
#define	bytes_read(dev)			(dev).bytes_read
#define	bytes_written(dev)		(dev).bytes_written
#else
#define	bytes_read(dev)			(dev).bytes[DEVSTAT_READ]
#define	bytes_written(dev)		(dev).bytes[DEVSTAT_WRITE]
#endif

  statinfo diskStats;
  bzero(&diskStats, sizeof(diskStats));
  diskStats.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo));
  bzero(diskStats.dinfo, sizeof(struct devinfo));
  int deviceAmount;
  int selected;
  int selections;
  long generation;
  device_selection *deviceSelect = 0;

  if (devstat_getdevs(NULL, &diskStats) < 0)
    return;

  deviceAmount = diskStats.dinfo->numdevs;
  if (devstat_selectdevs(&deviceSelect, &selected, &selections,
     &generation, diskStats.dinfo->generation,
     diskStats.dinfo->devices, deviceAmount,
     0, 0, 0, 0, DS_SELECT_ONLY, 10, 1) < 0)
    return;

  unsigned long readBlocks = 0, writeBlocks = 0, blockSize;
  for (int i = 0; i < deviceAmount; ++i) {
    int disk;
    devstat device;
    disk = deviceSelect[i].position;
    device = diskStats.dinfo->devices[disk];
    blockSize = (device.block_size <= 0 ? 512 : device.block_size);
    readBlocks = bytes_read(device) / blockSize;
    writeBlocks = bytes_written(device) / blockSize;

    DiskData diskData;
    diskData.name = device.device_name
       + TQString::number(device.unit_number);
    diskData.major = device.device_number;
    diskData.minor = 0;
    diskData.total = readBlocks + writeBlocks;
    diskData.readIO = 0;
    diskData.readBlocks = readBlocks;
    diskData.writeIO = 0;
    diskData.writeBlocks = writeBlocks;
    disks.append(diskData);
  }

  free(deviceSelect);
  free(diskStats.dinfo);
#endif
}

TQString DiskView::diskName( int major, int minor ) const
{
#ifdef Q_OS_LINUX
  TQString returnValue;
  switch ( major )
  {
    case IDE0_MAJOR:
      returnValue.prepend(TQString::tqfromLatin1("hda"));
      break;
    case IDE1_MAJOR:
      returnValue.prepend(TQString::tqfromLatin1("hdc"));
      break;
    case IDE3_MAJOR:
      returnValue.prepend(TQString::tqfromLatin1("hde"));
      break;
    case SCSI_DISK0_MAJOR:
      returnValue.prepend(TQString::tqfromLatin1("sda"));
      break;
    case SCSI_GENERIC_MAJOR:
      returnValue.prepend(TQString::tqfromLatin1("sg0"));
      break;
  }

  returnValue.tqat(2) = returnValue.tqat(2).latin1() + minor;
  return returnValue;
#else
  Q_UNUSED(major);
  Q_UNUSED(minor);
  return 0;
#endif
}

DiskView::DiskPair *DiskView::addDisk()
{
  KSim::Chart *chart = new KSim::Chart(false, 0, this);
  chart->show();
  m_layout->addWidget(chart);

  KSim::Progress *progress = new KSim::Progress(0, KSim::Types::None,
     KSim::Progress::Panel, this);
  progress->show();
  m_layout->addWidget(progress);

  return new DiskPair(chart, progress);
}

void DiskView::init()
{
  m_data.resize(m_list.size());

  TQStringList::ConstIterator it;
  for (it = m_list.begin(); it != m_list.end(); ++it) {
    if ((*it) == "complete")
      m_addAll = true;

    m_diskList.append(addDisk());
  }
}

void DiskView::cleanup()
{
  m_data.clear();
  m_addAll = false;
}

DiskConfig::DiskConfig(KSim::PluginObject *tqparent, const char *name)
   : KSim::PluginPage(tqparent, name)
{
  m_layout = new TQVBoxLayout(this);
  m_layout->setSpacing(6);

  m_listview = new KListView(this);
  m_listview->addColumn(i18n("Disks"));
  m_layout->addWidget(m_listview);

  TQHBoxLayout *tqlayout = new TQHBoxLayout;
  tqlayout->setSpacing(6);

  TQSpacerItem *spacer = new TQSpacerItem(20, 20,
     TQSizePolicy::Expanding, TQSizePolicy::Minimum);
  tqlayout->addItem(spacer);

  m_add = new TQPushButton(this);
  m_add->setText(i18n("Add..."));
  connect(m_add, TQT_SIGNAL(clicked()), TQT_SLOT(addItem()));
  tqlayout->addWidget(m_add);

  m_remove = new TQPushButton(this);
  m_remove->setText(i18n("Remove"));
  connect(m_remove, TQT_SIGNAL(clicked()), TQT_SLOT(removeItem()));
  tqlayout->addWidget(m_remove);
  m_layout->addLayout(tqlayout);

  m_buttonBox = new TQVButtonGroup(i18n("Disk Styles"), this);
  m_layout->addWidget(m_buttonBox);

  m_totalButton = new TQRadioButton(m_buttonBox);
  m_totalButton->setText(i18n("Display the read and write data as one"));
  m_bothButton = new TQRadioButton(m_buttonBox);
  m_bothButton->setText(i18n("Display the read and write data"
     "\nseparately as in/out data"));

  TQSpacerItem *vSpacer = new TQSpacerItem(20, 20,
     TQSizePolicy::Minimum, TQSizePolicy::Expanding);
  m_layout->addItem(vSpacer);
}

DiskConfig::~DiskConfig()
{
}

void DiskConfig::readConfig()
{
  config()->setGroup("DiskPlugin");
  m_buttonBox->setButton(config()->readBoolEntry("UseSeperatly", true));
  TQStringList list = config()->readListEntry("Disks");

  TQStringList::ConstIterator it;
  for (it = list.begin(); it != list.end(); ++it) {
    TQString text = ((*it) == "complete" ? i18n("All Disks") : (*it));
    if (!m_listview->findItem(text, 0))
      new TQListViewItem(m_listview, text);
  }
}

void DiskConfig::saveConfig()
{
  TQStringList list;
  for (TQListViewItemIterator it(m_listview); it.current(); ++it) {
    if (it.current()->text(0) == i18n("All Disks"))
      list.append("complete");
    else
      list.append(it.current()->text(0));
  }

  config()->setGroup("DiskPlugin");
  config()->writeEntry("UseSeperatly", (bool)m_buttonBox->id(m_buttonBox->selected()));
  config()->writeEntry("Disks", list);
}

void DiskConfig::addItem()
{
  bool ok = false;
  TQString text = KInputDialog::getText(i18n("Add Disk Device"), i18n("Disk name:"),
     TQString(), &ok, this);
  
  if (text.startsWith("/dev/"))
    text = text.mid(5);

  if (ok)
    new TQListViewItem(m_listview, text);
}

void DiskConfig::removeItem()
{
  if (!m_listview->selectedItem())
    return;

  TQListViewItem *item = m_listview->selectedItem();
  delete item;
}