/* * memory.cpp * * prints memory-information and shows a graphical display. * * Copyright (c) 1999-2002 Helge Deller * * 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 /* for BSD */ #include #include #include #include #include #include #include #include "memory.h" enum { /* entries for Memory_Info[] */ TOTAL_MEM = 0, /* total physical memory (without swaps) */ FREE_MEM, /* total free physical memory (without swaps) */ #if !defined(__svr4__) || !defined(sun) #if !defined(__NetBSD__) && !defined(__OpenBSD__) SHARED_MEM, /* shared memory size */ BUFFER_MEM, /* buffered memory size */ #else ACTIVE_MEM, INACTIVE_MEM, #endif #endif CACHED_MEM, /* cache memory size (located in ram) */ SWAP_MEM, /* total size of all swap-partitions */ FREESWAP_MEM, /* free memory in swap-partitions */ MEM_LAST_ENTRY }; /* all update()-functions should put either their results _OR_ the value NO_MEMORY_INFO into Memory_Info[] */ static t_memsize Memory_Info[MEM_LAST_ENTRY]; #define MEMORY(x) ((t_memsize) (x)) /* it's easier... */ #define NO_MEMORY_INFO MEMORY(-1) /* DO NOT CHANGE */ #define ZERO_IF_NO_INFO(value) ((value) != NO_MEMORY_INFO ? (value) : 0) /******************/ /* Implementation */ /******************/ static TQLabel *MemSizeLabel[MEM_LAST_ENTRY][2]; enum { MEM_RAM_AND_HDD, MEM_RAM, MEM_HDD, MEM_LAST }; static TQWidget *Graph[MEM_LAST]; static TQLabel *GraphLabel[MEM_LAST]; #define SPACING 16 static TQString formatted_unit(t_memsize value) { if (value > (1024 * 1024)) if (value > (1024 * 1024 * 1024)) return i18n("%1 GB").arg(KGlobal::locale()->formatNumber(value / (1024 * 1024 * 1024.0), 2)); else return i18n("%1 MB").arg(KGlobal::locale()->formatNumber(value / (1024 * 1024.0), 2)); else return i18n("%1 KB").arg(KGlobal::locale()->formatNumber(value / 1024.0, 2)); } KMemoryWidget::KMemoryWidget(TQWidget * parent, const char *name) : KCModule(parent, name) { KAboutData *about = new KAboutData(I18N_NOOP("kcminfo"), I18N_NOOP("KDE Panel Memory Information Control Module"), 0, 0, KAboutData::License_GPL, I18N_NOOP("(c) 1998 - 2002 Helge Deller")); about->addAuthor("Helge Deller", 0, "deller@gmx.de"); setAboutData( about ); TQString title, initial_str; TQLabel *Widget = 0; int i, j; ram_colors_initialized = swap_colors_initialized = all_colors_initialized = false; setButtons(Help); /* default string for no Information... */ Not_Available_Text = i18n("Not available."); TQVBoxLayout *top = new TQVBoxLayout(this, 0, KDialog::spacingHint()); TQHBoxLayout *hbox = new TQHBoxLayout(); top->addLayout(hbox); /* stretch the left side */ hbox->addStretch(); /* first create the Informationtext-Widget */ TQVBoxLayout *vbox = new TQVBoxLayout(hbox, 0); for (i = TOTAL_MEM; i < MEM_LAST_ENTRY; ++i) { switch (i) { case TOTAL_MEM: title = i18n("Total physical memory:"); break; case FREE_MEM: title = i18n("Free physical memory:"); break; #if !defined(__svr4__) || !defined(sun) #if !defined(__NetBSD__) && !defined(__OpenBSD__) case SHARED_MEM: title = i18n("Shared memory:"); break; case BUFFER_MEM: title = i18n("Disk buffers:"); break; #else case ACTIVE_MEM: title = i18n("Active memory:"); break; case INACTIVE_MEM: title = i18n("Inactive memory:"); break; #endif #endif case CACHED_MEM: title = i18n("Disk cache:"); break; case SWAP_MEM: vbox->addSpacing(SPACING); title = i18n("Total swap space:"); break; case FREESWAP_MEM: title = i18n("Free swap space:"); break; default: title = ""; break; }; Widget = new TQLabel(title, this); Widget->tqsetAlignment(AlignLeft); vbox->addWidget(Widget, 1); } /* then the memory-content-widgets */ for (j = 0; j < 2; j++) { vbox = new TQVBoxLayout(hbox, 0); for (i = TOTAL_MEM; i < MEM_LAST_ENTRY; ++i) { if (i == SWAP_MEM) vbox->addSpacing(SPACING); Widget = new TQLabel(this); Widget->tqsetAlignment(AlignRight); MemSizeLabel[i][j] = Widget; vbox->addWidget(Widget, 1); } } /* stretch the right side */ hbox->addStretch(); KSeparator *line = new KSeparator(KSeparator::HLine, this); top->addWidget(line); /* now the Graphics */ TQString hint; hbox = new TQHBoxLayout(top, 1); for (i = MEM_RAM_AND_HDD; i < MEM_LAST; i++) { hbox->addSpacing(SPACING); vbox = new TQVBoxLayout(hbox); switch (i) { case MEM_RAM_AND_HDD: title = i18n("Total Memory"); hint = i18n("This graph gives you an overview of the " "usage of all available memory (the sum of " "physical memory and swap space) in your system."); break; case MEM_RAM: title = i18n("Physical Memory"); hint = i18n("This graph gives you an overview of " "the usage of physical memory in your system." "

Most operating systems (including Linux) " "will use as much of the available physical " "memory as possible for a disk cache, " "to speed up the reading and writing of files. " "

This means that if you are seeing a small amount " "of Free Physical Memory and a large amount of " "Disk Cache, your system is well configured."); break; case MEM_HDD: title = i18n("Swap Space"); hint = i18n("Swap space is the virtual memory " "available to the system. " "

It will be used when needed, and is provided " "through one or more swap partitions and/or swap files."); break; default: hint = title = TQString::null; break; }; if (hint.length()) hint = "" + hint + ""; Widget = new TQLabel("" + title + "", this); Widget->tqsetAlignment(AlignCenter); TQToolTip::add(Widget, hint); vbox->addWidget(Widget); vbox->addSpacing(SPACING / 2); TQWidget *g = new TQWidget(this); g->setMinimumWidth(2 * SPACING); g->setMinimumHeight(3 * SPACING); g->setBackgroundMode(NoBackground); TQToolTip::add(g, hint); // add the tooltip Graph[i] = g; vbox->addWidget(g, 2); vbox->addSpacing(SPACING / 2); Widget = new TQLabel(this); /* xx MB used. */ Widget->tqsetAlignment(AlignCenter); TQToolTip::add(Widget, hint); GraphLabel[i] = Widget; vbox->addWidget(Widget); } hbox->addSpacing(SPACING); timer = new TQTimer(this); timer->start(100); TQObject::connect(timer, TQT_SIGNAL(timeout()), this, TQT_SLOT(update_Values())); update(); } KMemoryWidget::~KMemoryWidget() { /* stop the timer */ timer->stop(); } TQString KMemoryWidget::quickHelp() const { return i18n("

Memory Information

" " This display shows you the current memory usage of your system." " The values are updated on a regular basis and give you an" " overview of the physical and virtual used memory." ); } /* Graphical Memory Display */ bool KMemoryWidget::Display_Graph(int widgetindex, int count, t_memsize total, t_memsize * used, TQColor * color, TQString *text) { TQWidget *graph = Graph[widgetindex]; int width = graph->width(); int height = graph->height(); TQPixmap pm(width, height); TQPainter paint; paint.begin(&pm, this); TQPen pen(TQColor(0, 0, 0)); if (! ZERO_IF_NO_INFO(total)) { paint.fillRect(1, 1, width - 2, height - 2, TQBrush(TQColor(128, 128, 128))); paint.setPen(pen); paint.drawRect(graph->rect()); GraphLabel[widgetindex]->setText(Not_Available_Text); paint.end(); bitBlt(graph, 0, 0, &pm); return false; } int startline = height-2; int percent, localheight; t_memsize last_used = 0; while (count--) { last_used = *used; #ifdef HAVE_LONG_LONG percent = (((long long)last_used) * 1000 + 5) / (total * 10); #else /* prevent integer overflow with usage of double type */ percent = (int) ((((double)last_used) * 1000 + 5) / (total * 10)); #endif if (count) localheight = ((height-2) * percent) / 100; else localheight = startline; if (localheight>0) { paint.fillRect(1, startline, width-2, -localheight, *color); if (localheight >= SPACING) { paint.drawText(0, startline-localheight, width, localheight, AlignCenter | WordBreak, TQString("%1 %2%").arg(*text).arg(percent)); } } startline -= localheight; ++used; ++color; ++text; } /* draw surrounding box */ paint.setPen(pen); TQRect r = graph->rect(); qDrawShadePanel(&paint, r.x(), r.y(), r.width(), r.height(), palette().active(), true, 1); paint.end(); bitBlt(graph, 0, 0, &pm); GraphLabel[widgetindex]->setText(i18n("%1 free").arg(formatted_unit(last_used))); return true; } /* update_Values() is the main-loop for updating the Memory-Information */ void KMemoryWidget::update_Values() { int i; bool ok1; TQLabel *label; t_memsize used[5]; update(); /* get the Information from memory_linux, memory_fbsd */ /* update the byte-strings */ for (i = TOTAL_MEM; i < MEM_LAST_ENTRY; i++) { label = MemSizeLabel[i][0]; if (Memory_Info[i] == NO_MEMORY_INFO) label->clear(); else label->setText(i18n("%1 bytes ="). arg(KGlobal::locale()-> formatNumber(Memory_Info[i], 0))); } /* update the MB-strings */ for (i = TOTAL_MEM; i < MEM_LAST_ENTRY; i++) { label = MemSizeLabel[i][1]; label->setText((Memory_Info[i] != NO_MEMORY_INFO) ? formatted_unit(Memory_Info[i]) : Not_Available_Text); } /* display graphical output (ram, hdd, at last: HDD+RAM) */ /* be careful ! Maybe we have not all info available ! */ /* RAM usage: */ /* don't rely on the SHARED_MEM value since it may refer to * the size of the System V sharedmem in 2.4.x. Calculate instead! */ used[1] = 0; #if !defined(__svr4__) || !defined(sun) #if !defined(__NetBSD__) && !defined(__OpenBSD__) used[1] = ZERO_IF_NO_INFO(Memory_Info[BUFFER_MEM]); #endif #endif used[2] = ZERO_IF_NO_INFO(Memory_Info[CACHED_MEM]); used[3] = ZERO_IF_NO_INFO(Memory_Info[FREE_MEM]); used[0] = ZERO_IF_NO_INFO(Memory_Info[TOTAL_MEM]) - used[1] - used[2] - used[3]; if (!ram_colors_initialized) { ram_colors_initialized = true; ram_text[0] = i18n("Application Data"); ram_colors[0] = COLOR_USED_DATA; /* used+shared */ ram_text[1] = i18n("Disk Buffers"); ram_colors[1] = COLOR_USED_BUFFER; /* buffers */ ram_text[2] = i18n("Disk Cache"); ram_colors[2] = COLOR_USED_CACHE; /* cached */ ram_text[3] = i18n("Free Physical Memory"); ram_colors[3] = COLOR_FREE_MEMORY; /* free */ } ok1 = Display_Graph(MEM_RAM, 4, Memory_Info[TOTAL_MEM], used, ram_colors, ram_text); /* SWAP usage: */ used[1] = ZERO_IF_NO_INFO(Memory_Info[FREESWAP_MEM]); used[0] = ZERO_IF_NO_INFO(Memory_Info[SWAP_MEM]) - used[1]; if (!swap_colors_initialized) { swap_colors_initialized = true; swap_text[0] = i18n("Used Swap"); swap_colors[0] = COLOR_USED_SWAP; /* used */ swap_text[1] = i18n("Free Swap"); swap_colors[1] = COLOR_FREE_MEMORY; /* free */ } Display_Graph(MEM_HDD, 2, Memory_Info[SWAP_MEM], used, swap_colors, swap_text); /* RAM + SWAP usage: */ /* used[0] already tqcontains the amount of used swap */ used[2] = Memory_Info[FREE_MEM] + ZERO_IF_NO_INFO(Memory_Info[FREESWAP_MEM]); used[1] = Memory_Info[TOTAL_MEM] - Memory_Info[FREE_MEM]; if (!all_colors_initialized) { all_colors_initialized = true; all_text[0] = i18n("Used Memory (swap part)"); all_colors[0] = COLOR_USED_SWAP; /* used swap */ all_text[1] = i18n("Used Memory (physical part)"); all_colors[1] = COLOR_USED_RAM; /* used ram */ all_text[2] = i18n("Free Memory (total)"); all_colors[2] = COLOR_FREE_MEMORY; /* free ram+swap*/ } Display_Graph(MEM_RAM_AND_HDD, 3, ok1 ? Memory_Info[TOTAL_MEM] + ZERO_IF_NO_INFO(Memory_Info[SWAP_MEM]) : NO_MEMORY_INFO, used, all_colors, all_text); } /* Include system-specific code */ #ifdef __linux__ #include "memory_linux.cpp" #elif defined(__APPLE__) #include "memory_osx.cpp" #elif defined(sgi) && sgi #include "memory_sgi.cpp" #elif defined(__svr4__) && defined(sun) #include "memory_solaris.cpp" #elif defined(__FreeBSD__) || defined(__DragonFly__) #include "memory_fbsd.cpp" #elif defined(__hpux) #include "memory_hpux.cpp" #elif defined(__NetBSD__) || defined(__OpenBSD__) #include "memory_netbsd.cpp" #elif __osf__ #include "memory_tru64.cpp" #else /* Default for unsupported systems */ void KMemoryWidget::update() { int i; for (i = TOTAL_MEM; i < MEM_LAST_ENTRY; ++i) Memory_Info[i] = NO_MEMORY_INFO; } #endif #include "memory.moc"