src/swapmanager.cpp

   1 /*
   2 $Id: swapmanager.cpp, V1.00 2008/01/08 21:23:00 Dre
   3 Swap Manager for Enigma 1
   4 Copyright (C) 2007 - 2008 Dre
   5
   6 This program is free software; you can redistribute it and/or
   7 modify it under the terms of the GNU General Public License
   8 as published by the Free Software Foundation; either version 2
   9 of the License, or (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19 */
  20
  21 #ifndef DISABLE_HDD
  22 #ifndef DISABLE_FILE
  23
  24 #include <swapmanager.h>
  25
  26 using namespace std;
  27
  28 //Main GUI
  29 eSwapManager::eSwapManager(): eWindow(0), createSwapfile(0)
  30 {
  31
  32         cmove(ePoint(100,120));
  33         cresize(eSize(500, 370));
  34         setText(_("Swap Manager"));
  35
  36 //Statusbar
  37         statusbar=new eStatusBar(this);
  38         statusbar->move( ePoint(0, clientrect.height()-50 ) );
  39         statusbar->resize( eSize( clientrect.width(), 50) );
  40         statusbar->loadDeco();
  41
  42         setHelpID(155);
  43
  44 //Boxmodell for hdd-path
  45         getBoxType();
  46
  47 //Config laden
  48         swap=0;
  49         int pos =0;
  50         int length = 0;
  51         eString file;
  52         file = "myswap";
  53         filename=0;
  54         eString path;
  55         path = eString().sprintf("%susb/", mntbase.c_str() );
  56         eConfig::getInstance()->getKey("/extras/swapfilename", swap);
  57
  58
  59 //Label und Combobox für den Dateinamen
  60         lb_file=new eLabel(this);
  61         lb_file->setText(_("Filename: "));//Dateiname
  62         lb_file->move(ePoint(20, 20));
  63         lb_file->resize(eSize(200, 30));
  64
  65         cb_file=new eComboBox(this, 4, lb_file);
  66         cb_file->move(ePoint(250, 20));
  67         cb_file->resize(eSize(240, 30));
  68         cb_file->loadDeco();
  69         cb_file->setHelpText(_("Push OK to select Filename"));
  70
  71         new eListBoxEntryText( *cb_file, "swap", (void*)0, 0, eString().sprintf("%s%s", _("Filename: "), "swap"));
  72         new eListBoxEntryText( *cb_file, "swapfile", (void*)1, 0, eString().sprintf("%s%s", _("Filename: "), "swapfile"));
  73         new eListBoxEntryText( *cb_file, "myswap", (void*)2, 0, eString().sprintf("%s%s", _("Filename: "), "myswap"));
  74         if(swap != 0)
  75         {
  76                 eString s = eString(swap);
  77                 pos = s.find_last_of("/");
  78                 length = s.length()-1;
  79                 file = s.substr(pos+1, length-1);
  80                 if ( file == "swapfile")
  81                 {
  82                         filename=1;
  83                 }
  84                 else if (file == "myswap")
  85                 {
  86                         filename=2;
  87                 }
  88                 else if (file == "swap")
  89                 {
  90                         filename=0;
  91                 }
  92                 else
  93                 {
  94                         filename=3;
  95                         new eListBoxEntryText( *cb_file, file.c_str(), (void*)3, 0, eString().sprintf("%s%s", _("Filename: "), file.c_str() ) );
  96                 }
  97                 path = s.substr(0, pos+1);
  98         }
  99
 100         cb_file->setCurrent(filename, true);
 101
 102         CONNECT(cb_file->selchanged, eSwapManager::searchSwap);
 103
 104 //Label und Combobox für das Verzeichnis
 105         lb_mnt=new eLabel(this);
 106         lb_mnt->setText(_("Directory:"));//Speicherort
 107         lb_mnt->move(ePoint(20, 70));
 108         lb_mnt->resize(eSize(200, 30));
 109
 110         cb_mnt=new eComboBox(this,4, lb_mnt);
 111         cb_mnt->move(ePoint(250, 70));
 112         cb_mnt->resize(eSize(240, 30));
 113         cb_mnt->loadDeco();
 114         cb_mnt->setHelpText(_("Push OK to select directory"));
 115
 116         new eListBoxEntryText( *cb_mnt, eString().sprintf("%susb/",mntbase.c_str()), (void*)0, 0, eString().sprintf( "%s %susb/",_("Directory:"),mntbase.c_str()));
 117         new eListBoxEntryText( *cb_mnt, eString().sprintf("%s", hdddir.c_str()), (void*)1, 0, eString().sprintf( "%s %s",_("Directory:"), hdddir.c_str() ));
 118         new eListBoxEntryText( *cb_mnt, eString().sprintf("%scf/",mntbase.c_str()), (void*)2, 0, eString().sprintf( "%s %scf/",_("Directory:"),mntbase.c_str()));
 119
 120         if(path == eString().sprintf("%susb/",mntbase.c_str()))
 121         {
 122                 pathname=0;
 123         }
 124         else if(path == hdddir)
 125         {
 126                 pathname=1;
 127         }
 128         else if(path == eString().sprintf("%scf/",mntbase.c_str()))
 129         {
 130                 pathname=2;
 131         }
 132         else
 133         {
 134                 pathname=3;
 135                 new eListBoxEntryText( *cb_mnt, path.c_str(), (void*)3, 0, eString().sprintf( "%s%s",_("Directory:"), path.c_str() ) );
 136         }
 137
 138         cb_mnt->setCurrent(pathname, true);
 139
 140 //Suchen nach dem Swapfile
 141         CONNECT(cb_mnt->selchanged, eSwapManager::searchSwap);
 142
 143 //Label und Combobox für die Dateigrösse
 144         lb_size=new eLabel(this);
 145         lb_size->setText(_("Filesize:"));//Dateigroesse
 146         lb_size->move(ePoint(20, 120));
 147         lb_size->resize(eSize(200, 30));
 148
 149         cb_size=new eComboBox(this, 4, lb_size);
 150         cb_size->move(ePoint(250, 120));
 151         cb_size->resize(eSize(240, 30));
 152         cb_size->loadDeco();
 153         cb_size->setHelpText(_("Push OK to select Filesize"));
 154
 155         new eListBoxEntryText( *cb_size, "0 MB", (void*)0, 0, eString().sprintf(_("Filesize: %d MB"),0).c_str());
 156         new eListBoxEntryText( *cb_size, "8 MB", (void*)8, 0, eString().sprintf(_("Filesize: %d MB"),8).c_str());
 157         new eListBoxEntryText( *cb_size, "16 MB", (void*)16, 0, eString().sprintf(_("Filesize: %d MB"),16).c_str());
 158         new eListBoxEntryText( *cb_size, "32 MB", (void*)32, 0, eString().sprintf(_("Filesize: %d MB"),32).c_str());
 159         new eListBoxEntryText( *cb_size, "64 MB", (void*)64, 0, eString().sprintf(_("Filesize: %d MB"),64).c_str());
 160         new eListBoxEntryText( *cb_size, "128 MB", (void*)128, 0, eString().sprintf(_("Filesize: %d MB"),128).c_str());
 161         new eListBoxEntryText( *cb_size, "256 MB", (void*)256, 0, eString().sprintf(_("Filesize: %d MB"),256).c_str());
 162         new eListBoxEntryText( *cb_size, "512 MB", (void*)512, 0, eString().sprintf(_("Filesize: %d MB"),512).c_str());
 163         new eListBoxEntryText( *cb_size, "1024 MB", (void*)1024, 0, eString().sprintf(_("Filesize: %d MB"),1024).c_str());
 164
 165 //Abfragen der Grösse
 166         getSize();
 167
 168 //Button zum Löschen des Swapfiles
 169         bt_delswap = new eButton(this);
 170         bt_delswap->move(ePoint(250, 270));
 171         bt_delswap->resize(eSize(240, 30));
 172         bt_delswap->setShortcut("yellow");
 173         bt_delswap->setShortcutPixmap("yellow");
 174         bt_delswap->setText(_("Delete Swap-File"));//Swap-File loeschen
 175         bt_delswap->setHelpText(_("Delete Swap-File"));
 176         bt_delswap->loadDeco();
 177         bt_delswap->hide();
 178
 179         CONNECT(bt_delswap->selected, eSwapManager::deleteSwap);
 180
 181 //Button zum Deaktivieren des Swapfiles
 182         bt_stswap = new eButton(this);
 183         bt_stswap->move(ePoint(10, 270));
 184         bt_stswap->resize(eSize(230, 30));
 185         bt_stswap->setShortcut("red");
 186         bt_stswap->setShortcutPixmap("red");
 187         bt_stswap->setText(_("Stop Swap"));
 188         bt_stswap->setHelpText(_("Stop Swap"));//ausschalten
 189         bt_stswap->loadDeco();
 190         bt_stswap->hide();
 191
 192         CONNECT(bt_stswap->selected, eSwapManager::stopSwap);
 193
 194 //Button zum Erstellen des Swapfiles
 195         bt_crswap = new eButton(this);
 196         bt_crswap->move(ePoint(250, 270));
 197         bt_crswap->resize(eSize(240, 30));
 198         bt_crswap->setShortcut("blue");
 199         bt_crswap->setShortcutPixmap("blue");
 200         bt_crswap->setText(_("Create Swap-File"));//erstellen
 201         bt_crswap->setHelpText(_("Create Swap-File"));
 202         bt_crswap->loadDeco();
 203         bt_crswap->hide();
 204
 205         CONNECT(bt_crswap->selected, eSwapManager::createSwap);
 206
 207 //Button zum Aktivieren des Swapfiles
 208         bt_acswap = new eButton(this);
 209         bt_acswap->move(ePoint(10, 270));
 210         bt_acswap->resize(eSize(230, 30));
 211         bt_acswap->setShortcut("green");
 212         bt_acswap->setShortcutPixmap("green");
 213         bt_acswap->setText(_("Start Swap"));
 214         bt_acswap->setHelpText(_("Start Swap"));// einschalten
 215         bt_acswap->loadDeco();
 216         bt_acswap->hide();
 217
 218         CONNECT(bt_acswap->selected, eSwapManager::activateSwap);
 219
 220 //Label für die Gefunden-/Nicht gefunden-Anzeige
 221         lb_found= new eLabel(this);
 222         lb_found->move(ePoint(20, 220));
 223         lb_found->resize(eSize(400, 30));
 224
 225 //Label für die Aktiv-/Inaktiv-Anzeige
 226         lb_status= new eLabel(this);
 227         lb_status->move(ePoint(20, 170));
 228         lb_status->resize(eSize(400, 30));
 229
 230 //Abfragen, ob Swapfile existiert
 231         searchSwapLight();
 232 }
 233
 234 void eSwapManager::getBoxType()
 235 {
 236         int boxtype = eSystemInfo::getInstance()->getHwType();
 237
 238         switch( boxtype )
 239         {
 240                 case eSystemInfo::DM500:
 241                 case eSystemInfo::DM5600:
 242                 case eSystemInfo::DM5620:
 243                 case eSystemInfo::TR_DVB272S:
 244                 case eSystemInfo::DM7000:
 245                 default:
 246                         hdddir = "/hdd/";
 247                         mntbase = "/var/mnt/";
 248                         break;
 249                 case eSystemInfo::DM500PLUS:
 250                 case eSystemInfo::DM600PVR:
 251                 case eSystemInfo::DM7020:
 252                         hdddir = "/media/hdd/";
 253                         mntbase = "/media/";
 254                         break;
 255
 256         }
 257 }
 258
 259 //Abfragen der aktuell aktiven Swaps
 260 void eSwapManager::getCurrentSwaps()
 261 {
 262         s=0;
 263
 264         char swapbuffer[150];
 265
 266         FILE *j = fopen("/proc/swaps", "r");
 267         if(j)
 268         {
 269                 while(fgets(swapbuffer, 75, j))
 270                 {
 271                         eString dummystring;
 272                         dummystring = swapbuffer;
 273                         std::stringstream tmp;
 274                         tmp.str(dummystring);
 275                         tmp >> dummystring;
 276                         swaps[s] = dummystring;
 277                         s++;
 278                 }
 279         fclose(j);
 280         }
 281 }
 282
 283 //Aktiv/Inaktiv abfragen
 284 void eSwapManager::getState()
 285 {
 286         getCurrentSwaps();
 287
 288         swapstatus=0;
 289
 290         for(int m=0; m < s; m++)
 291         {
 292                 if(swaps[m] == store)
 293                 {
 294                         swapstatus = 1;
 295                         break;
 296                 }
 297         }
 298 }
 299
 300 //Grösse abfragen
 301 void eSwapManager::getSize()
 302 {
 303
 304         eString tmp = cb_mnt->getCurrent()->getText() + cb_file->getCurrent()->getText();
 305
 306         struct stat sw;
 307         int used=0;
 308
 309         if (stat(tmp.c_str(), &sw) != -1)
 310                 used=sw.st_size;
 311                 used/=(1024*1024);
 312
 313         if( used > 1024 )
 314         {
 315                 new eListBoxEntryText( *cb_size, eString().sprintf("%d MB", used), (void*)used, 0, eString().sprintf(_("Filesize: %d MB"), used));
 316         }
 317         cb_size->setCurrent((void*)used, true);
 318 }
 319
 320 //Buttons handeln
 321 void eSwapManager::setButtons()
 322 {
 323         if(swapfound == 0)
 324         {
 325                 bt_stswap->hide();
 326                 bt_acswap->hide();
 327                 bt_delswap->hide();
 328                 bt_crswap->show();
 329                 found = eString().sprintf(_("Not found"));
 330                 status = eString().sprintf(_("Inactive"));
 331         }
 332         else if(swapfound == 1 && swapstatus == 0)
 333         {
 334                 bt_stswap->hide();
 335                 bt_acswap->show();
 336                 bt_delswap->show();
 337                 bt_crswap->hide();
 338                 found = eString().sprintf(_("Found"));
 339                 status = eString().sprintf(_("Inactive"));
 340         }
 341         else if(swapfound == 1 && swapstatus == 1)
 342         {
 343                 bt_stswap->show();
 344                 bt_acswap->hide();
 345                 bt_delswap->hide();
 346                 bt_crswap->hide();
 347                 found = eString().sprintf(_("Found"));
 348                 status = eString().sprintf(_("Active"));
 349         }
 350
 351         lb_found->setText(eString().sprintf(_("Swap-File: %s"), found.c_str()));
 352         lb_status->setText(eString().sprintf(_("Swap-Status: %s"), status.c_str()));
 353 }
 354
 355 //Swapfile suchen (mit Listbox)
 356 void eSwapManager::searchSwap(eListBoxEntryText *seltype)
 357 {
 358         store = cb_mnt->getCurrent()->getText() + cb_file->getCurrent()->getText();
 359
 360         struct stat st;
 361         if (lstat(store.c_str(),&st) != -1)
 362         {
 363                 swapfound=1;
 364                 getState();
 365                 getSize();
 366         }
 367         else
 368         {
 369                 swapfound=0;
 370                 swapstate=0;
 371         }
 372         setButtons();
 373 }
 374
 375 //Swapfile suchen (ohne Listbox)
 376 void eSwapManager::searchSwapLight()
 377 {
 378         store = cb_mnt->getCurrent()->getText() + cb_file->getCurrent()->getText();
 379         struct stat st;
 380         if (lstat(store.c_str(),&st) != -1)
 381         {
 382                 swapfound=1;
 383                 getState();
 384                 getSize();
 385         }
 386         else
 387         {
 388                 swapfound=0;
 389                 swapstate=0;
 390         }
 391         setButtons();
 392 }
 393
 394 //Swapfile erstellen
 395 void eSwapManager::createSwap()
 396 {
 397         int bytesize=(int)cb_size->getCurrent()->getKey() * 1024;
 398
 399         store = cb_mnt->getCurrent()->getText() + cb_file->getCurrent()->getText();
 400
 401         info = new eMessageBox (_("The swapfile will now be created. This may take some time depending on the size of your swapfile"), _("Swap Manager"), 0);
 402                 info->zOrderRaise();
 403                 info->show();
 404
 405         eString command = eString().sprintf("dd if=/dev/zero of=%s bs=1024 count=%d", store.c_str(), bytesize );
 406
 407                 if (!createSwapfile)
 408                 {
 409                         createSwapfile = new eConsoleAppContainer(command.c_str());
 410                         CONNECT(createSwapfile->appClosed, eSwapManager::appClosed);
 411                 }
 412
 413 }
 414
 415 //Swapfile erstellt
 416 void eSwapManager::appClosed(int)
 417 {
 418         delete createSwapfile;
 419         createSwapfile=0;
 420
 421         int byte=(int)cb_size->getCurrent()->getKey();
 422
 423         eString tmp = cb_mnt->getCurrent()->getText() + cb_file->getCurrent()->getText();
 424
 425         struct stat crsize;
 426         int created=0;
 427
 428         if (stat(tmp.c_str(), &crsize) != -1)
 429                 created=crsize.st_size;
 430                 created/=(1024*1024);
 431
 432         info->hide();
 433
 434         if(created == byte)
 435         {
 436         eMessageBox debug((eString().sprintf(_("The swapfile has been created!"))), _("Swap Manager"), eMessageBox::btOK);
 437         debug.show();
 438         debug.exec();
 439         debug.hide();
 440
 441         searchSwapLight();
 442
 443         lb_found->setText(eString().sprintf(_("Swap-File: %s"), found.c_str()));
 444                 if( system(eString().sprintf("mkswap %s", store.c_str() ).c_str()) == 0)
 445                         {
 446                                 int mkvalue = 1;
 447                                 eConfig::getInstance()->setKey("/extras/mkswap", mkvalue);
 448                         }
 449                 else
 450                         {
 451                                 int mkvalue = 0;
 452                                 eConfig::getInstance()->setKey("/extras/mkswap", mkvalue);
 453                         }
 454         }
 455         else
 456         {
 457                         eMessageBox debug((eString().sprintf("%s\n%s",_("There has been an error during creation!"),strerror(errno))), _("Swap Manager"), eMessageBox::iconWarning|eMessageBox::btOK);
 458                         debug.show();
 459                         debug.exec();
 460                         debug.hide();
 461
 462         }
 463         setButtons();
 464 }
 465
 466 //Swapfile aktivieren
 467 void eSwapManager::activateSwap()
 468 {
 469         store = cb_mnt->getCurrent()->getText() + cb_file->getCurrent()->getText();
 470         int mkvalue = 0;
 471         eConfig::getInstance()->getKey("/extras/mkswap", mkvalue);
 472         if (mkvalue == 0)
 473         {
 474                 if( system(eString().sprintf("mkswap %s", store.c_str() ).c_str()) == 0)
 475                         {
 476                                 int mkvalue = 1;
 477                                 eConfig::getInstance()->setKey("/extras/mkswap", mkvalue);
 478                         }
 479                 else
 480                         {
 481                                 int mkvalue = 0;
 482                                 eConfig::getInstance()->setKey("/extras/mkswap", mkvalue);
 483                         }
 484         }
 485         if ( system(eString().sprintf("swapon %s%s", cb_mnt->getCurrent()->getText().c_str(), cb_file->getCurrent()->getText().c_str() ).c_str())  == 0 )
 486         {
 487                 system("echo 0 > /proc/sys/vm/swappiness");
 488                 eConfig::getInstance()->setKey("/extras/swapfilename", store.c_str());
 489                 eConfig::getInstance()->setKey("/extras/swapfile", 1);
 490                 getState();
 491                 setButtons();
 492         }
 493         else
 494         {
 495                 eMessageBox debug((eString().sprintf("%s\n%s",_("Error during activation!"),strerror(errno))), _("Swap Manager"), eMessageBox::iconWarning|eMessageBox::btOK);
 496                 debug.show();
 497                 debug.exec();
 498                 debug.hide();
 499         }
 500 }
 501
 502 //Swapfile deaktivieren
 503 void eSwapManager::stopSwap()
 504 {
 505         eString selectedSwap = eString().sprintf("%s%s", cb_mnt->getCurrent()->getText().c_str(), cb_file->getCurrent()->getText().c_str() );
 506
 507         if ( system(eString().sprintf("swapoff %s", selectedSwap.c_str() ).c_str())  == 0 )
 508         {
 509                 if ( selectedSwap == swap)
 510                 {
 511                         eConfig::getInstance()->setKey("/extras/swapfile", 0);
 512                 }
 513                 getState();
 514                 setButtons();
 515         }
 516         else
 517         {
 518                 eMessageBox debug((eString().sprintf("%s\n%s",_("Error during inactivation!"),strerror(errno))), _("Swap Manager"), eMessageBox::iconWarning|eMessageBox::btOK);
 519                 debug.show();
 520                 debug.exec();
 521                 debug.hide();
 522         }
 523 }
 524
 525 //swapfile löschen
 526 void eSwapManager::deleteSwap()
 527 {
 528         if ( system(eString().sprintf("rm -f %s%s", cb_mnt->getCurrent()->getText().c_str(), cb_file->getCurrent()->getText().c_str() ).c_str()) == 0 )
 529         {
 530 //              eConfig::getInstance()->setKey("/extras/swapfilename", "/var/mnt/usb/myswap");
 531                 eMessageBox debug((_("Swapfile has been deleted!")), ("Swap Manager"), eMessageBox::iconInfo|eMessageBox::btOK);
 532                 debug.show();
 533                 debug.exec();
 534                 debug.hide();
 535
 536                 searchSwapLight();
 537         }
 538         else
 539         {
 540                 eMessageBox debug(eString().sprintf("%s\n%s",_("File has not been deleted due to an error!"),strerror(errno)), _("Swap Manager"), eMessageBox::iconWarning|eMessageBox::btOK);
 541                 debug.show();
 542                 debug.exec();
 543                 debug.hide();
 544         }
 545 }
 546
 547 eSwapManager::~eSwapManager()
 548 {
 549         if (createSwapfile)
 550                 delete createSwapfile;
 551 }
 552 #endif
 553 #endif