mirror of https://gitlab.com/nakst/essence
426 lines
16 KiB
C++
426 lines
16 KiB
C++
// This file is part of the Essence operating system.
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// It is released under the terms of the MIT license -- see LICENSE.md.
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// Written by: nakst.
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#define ES_INSTANCE_TYPE Instance
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#include <essence.h>
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#include <shared/array.cpp>
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// TODO Single instance.
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// TODO Sorting lists.
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// TODO Processes: handle/thread count; IO statistics; more memory information.
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struct Instance : EsInstance {
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EsPanel *switcher;
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EsTextbox *textboxGeneralLog;
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EsListView *listViewProcesses;
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EsPanel *panelMemoryStatistics;
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int index;
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EsCommand commandTerminateProcess;
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Array<EsTextDisplay *> textDisplaysMemory;
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};
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#define REFRESH_INTERVAL (1000)
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#define DISPLAY_PROCESSES (1)
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#define DISPLAY_GENERAL_LOG (3)
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#define DISPLAY_MEMORY (12)
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EsListViewColumn listViewProcessesColumns[] = {
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{ "Name", -1, 0, 150 },
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{ "PID", -1, ES_LIST_VIEW_COLUMN_RIGHT_ALIGNED, 120 },
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{ "Memory", -1, ES_LIST_VIEW_COLUMN_RIGHT_ALIGNED, 120 },
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{ "CPU", -1, ES_LIST_VIEW_COLUMN_RIGHT_ALIGNED, 120 },
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{ "Handles", -1, ES_LIST_VIEW_COLUMN_RIGHT_ALIGNED, 120 },
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{ "Threads", -1, ES_LIST_VIEW_COLUMN_RIGHT_ALIGNED, 120 },
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};
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EsListViewColumn listViewContextSwitchesColumns[] = {
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{ "Time stamp (ms)", -1, ES_LIST_VIEW_COLUMN_RIGHT_ALIGNED, 150 },
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{ "CPU", -1, ES_LIST_VIEW_COLUMN_RIGHT_ALIGNED, 150 },
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{ "Process", -1, 0, 150 },
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{ "Thread", -1, 0, 150 },
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{ "Count", -1, 0, 150 },
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};
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const EsStyle styleMonospacedTextbox = {
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.inherit = ES_STYLE_TEXTBOX_NO_BORDER,
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.metrics = {
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.mask = ES_THEME_METRICS_FONT_FAMILY,
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.fontFamily = ES_FONT_MONOSPACED,
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},
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};
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const EsStyle stylePanelMemoryStatistics = {
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.inherit = ES_STYLE_PANEL_FILLED,
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.metrics = {
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.mask = ES_THEME_METRICS_GAP_ALL,
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.gapMajor = 5,
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.gapMinor = 5,
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},
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};
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const EsStyle stylePanelMemoryCommands = {
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.metrics = {
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.mask = ES_THEME_METRICS_INSETS | ES_THEME_METRICS_GAP_ALL,
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.insets = ES_RECT_4(0, 0, 0, 5),
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.gapMajor = 5,
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.gapMinor = 5,
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},
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};
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const char *pciClassCodeStrings[] = {
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"Unknown",
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"Mass storage controller",
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"Network controller",
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"Display controller",
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"Multimedia controller",
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"Memory controller",
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"Bridge controller",
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"Simple communication controller",
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"Base system peripheral",
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"Input device controller",
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"Docking station",
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"Processor",
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"Serial bus controller",
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"Wireless controller",
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"Intelligent controller",
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"Satellite communication controller",
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"Encryption controller",
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"Signal processing controller",
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};
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const char *pciSubclassCodeStrings1[] = {
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"SCSI bus controller",
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"IDE controller",
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"Floppy disk controller",
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"IPI bus controller",
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"RAID controller",
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"ATA controller",
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"Serial ATA",
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"Serial attached SCSI",
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"Non-volatile memory controller",
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};
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const char *pciSubclassCodeStrings12[] = {
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"FireWire (IEEE 1394) controller",
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"ACCESS bus",
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"SSA",
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"USB controller",
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"Fibre channel",
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"SMBus",
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"InfiniBand",
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"IPMI interface",
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"SERCOS interface (IEC 61491)",
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"CANbus",
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};
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const char *pciProgIFStrings12_3[] = {
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"UHCI",
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"OHCI",
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"EHCI",
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"XHCI",
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};
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struct ProcessItem {
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EsSnapshotProcessesItem data;
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uintptr_t cpuUsage;
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};
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char generalLogBuffer[256 * 1024];
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Array<ProcessItem> processes;
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int64_t selectedPID = -2;
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ProcessItem *FindProcessByPID(Array<ProcessItem> snapshot, int64_t pid) {
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for (uintptr_t i = 0; i < snapshot.Length(); i++) {
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if (pid == snapshot[i].data.pid) {
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return &snapshot[i];
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}
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}
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return nullptr;
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}
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void UpdateProcesses(Instance *instance) {
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Array<ProcessItem> previous = processes;
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processes = {};
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size_t bufferSize;
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EsHandle handle = EsTakeSystemSnapshot(ES_SYSTEM_SNAPSHOT_PROCESSES, &bufferSize);
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EsSnapshotProcesses *snapshot = (EsSnapshotProcesses *) EsHeapAllocate(bufferSize, false);
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EsConstantBufferRead(handle, snapshot);
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EsHandleClose(handle);
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for (uintptr_t i = 0; i < snapshot->count; i++) {
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ProcessItem item = {};
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item.data = snapshot->processes[i];
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processes.Add(item);
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if (snapshot->processes[i].isKernel) {
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ProcessItem item = {};
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item.data.cpuTimeSlices = snapshot->processes[i].idleTimeSlices;
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item.data.pid = -1;
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const char *idle = "CPU idle";
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item.data.nameBytes = EsCStringLength(idle);
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EsMemoryCopy(item.data.name, idle, item.data.nameBytes);
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processes.Add(item);
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}
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}
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EsHeapFree(snapshot);
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for (uintptr_t i = 0; i < previous.Length(); i++) {
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if (!FindProcessByPID(processes, previous[i].data.pid)) {
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EsListViewRemove(instance->listViewProcesses, 0, i, 1);
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previous.Delete(i--);
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}
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}
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for (uintptr_t i = 0; i < processes.Length(); i++) {
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processes[i].cpuUsage = processes[i].data.cpuTimeSlices;
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ProcessItem *item = FindProcessByPID(previous, processes[i].data.pid);
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if (item) processes[i].cpuUsage -= item->data.cpuTimeSlices;
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}
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int64_t totalCPUTimeSlices = 0;
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for (uintptr_t i = 0; i < processes.Length(); i++) {
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totalCPUTimeSlices += processes[i].cpuUsage;
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}
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if (!totalCPUTimeSlices) {
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totalCPUTimeSlices = 1;
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}
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int64_t percentageSum = 0;
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for (uintptr_t i = 0; i < processes.Length(); i++) {
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processes[i].cpuUsage = processes[i].cpuUsage * 100 / totalCPUTimeSlices;
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percentageSum += processes[i].cpuUsage;
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}
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while (percentageSum < 100 && percentageSum) {
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for (uintptr_t i = 0; i < processes.Length(); i++) {
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if (processes[i].cpuUsage && percentageSum < 100) {
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processes[i].cpuUsage++, percentageSum++;
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}
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}
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}
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for (uintptr_t i = 0; i < processes.Length(); i++) {
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if (!FindProcessByPID(previous, processes[i].data.pid)) {
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EsListViewInsert(instance->listViewProcesses, 0, i, 1);
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}
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}
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EsListViewInvalidateAll(instance->listViewProcesses);
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EsCommandSetDisabled(&instance->commandTerminateProcess, selectedPID < 0 || !FindProcessByPID(processes, selectedPID));
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EsTimerSet(REFRESH_INTERVAL, [] (EsGeneric context) {
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Instance *instance = (Instance *) context.p;
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if (instance->index == DISPLAY_PROCESSES) {
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UpdateProcesses(instance);
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}
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}, instance);
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previous.Free();
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}
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void UpdateDisplay(Instance *instance, int index) {
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instance->index = index;
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if (index != DISPLAY_PROCESSES) {
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EsCommandSetDisabled(&instance->commandTerminateProcess, true);
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}
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if (index == DISPLAY_PROCESSES) {
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UpdateProcesses(instance);
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EsPanelSwitchTo(instance->switcher, instance->listViewProcesses, ES_TRANSITION_NONE);
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EsElementFocus(instance->listViewProcesses);
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} else if (index == DISPLAY_GENERAL_LOG) {
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size_t bytes = _EsDebugCommand(index, (uintptr_t) generalLogBuffer, sizeof(generalLogBuffer), 0);
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EsTextboxSelectAll(instance->textboxGeneralLog);
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EsTextboxInsert(instance->textboxGeneralLog, generalLogBuffer, bytes);
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EsTextboxEnsureCaretVisible(instance->textboxGeneralLog, false);
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EsPanelSwitchTo(instance->switcher, instance->textboxGeneralLog, ES_TRANSITION_NONE);
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} else if (index == DISPLAY_MEMORY) {
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EsMemoryStatistics statistics = {};
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_EsDebugCommand(index, (uintptr_t) &statistics, 0, 0);
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EsPanelSwitchTo(instance->switcher, instance->panelMemoryStatistics, ES_TRANSITION_NONE);
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if (!instance->textDisplaysMemory.Length()) {
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EsPanel *panel = EsPanelCreate(instance->panelMemoryStatistics, ES_CELL_H_FILL | ES_PANEL_HORIZONTAL, &stylePanelMemoryCommands);
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EsButton *button;
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button = EsButtonCreate(panel, ES_FLAGS_DEFAULT, 0, EsLiteral("Leak 1 MB"));
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EsButtonOnCommand(button, [] (Instance *, EsElement *, EsCommand *) { EsMemoryReserve(0x100000); });
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button = EsButtonCreate(panel, ES_FLAGS_DEFAULT, 0, EsLiteral("Leak 4 MB"));
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EsButtonOnCommand(button, [] (Instance *, EsElement *, EsCommand *) { EsMemoryReserve(0x400000); });
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button = EsButtonCreate(panel, ES_FLAGS_DEFAULT, 0, EsLiteral("Leak 16 MB"));
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EsButtonOnCommand(button, [] (Instance *, EsElement *, EsCommand *) { EsMemoryReserve(0x1000000); });
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button = EsButtonCreate(panel, ES_FLAGS_DEFAULT, 0, EsLiteral("Leak 64 MB"));
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EsButtonOnCommand(button, [] (Instance *, EsElement *, EsCommand *) { EsMemoryReserve(0x4000000); });
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button = EsButtonCreate(panel, ES_FLAGS_DEFAULT, 0, EsLiteral("Leak 256 MB"));
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EsButtonOnCommand(button, [] (Instance *, EsElement *, EsCommand *) { EsMemoryReserve(0x10000000); });
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EsSpacerCreate(instance->panelMemoryStatistics, ES_CELL_H_FILL);
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}
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char buffer[256];
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size_t bytes;
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uintptr_t index = 0;
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#define ADD_MEMORY_STATISTIC_DISPLAY(label, ...) \
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bytes = EsStringFormat(buffer, sizeof(buffer), __VA_ARGS__); \
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if (instance->textDisplaysMemory.Length() == index) { \
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EsTextDisplayCreate(instance->panelMemoryStatistics, ES_CELL_H_PUSH | ES_CELL_H_RIGHT, 0, EsLiteral(label)); \
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instance->textDisplaysMemory.Add(EsTextDisplayCreate(instance->panelMemoryStatistics, ES_CELL_H_PUSH | ES_CELL_H_LEFT)); \
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} \
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EsTextDisplaySetContents(instance->textDisplaysMemory[index++], buffer, bytes)
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ADD_MEMORY_STATISTIC_DISPLAY("Fixed heap allocation count:", "%d", statistics.fixedHeapAllocationCount);
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ADD_MEMORY_STATISTIC_DISPLAY("Fixed heap graphics surfaces:", "%D (%d B)",
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statistics.totalSurfaceBytes, statistics.totalSurfaceBytes);
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ADD_MEMORY_STATISTIC_DISPLAY("Fixed heap normal size:", "%D (%d B)",
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statistics.fixedHeapTotalSize - statistics.totalSurfaceBytes, statistics.fixedHeapTotalSize - statistics.totalSurfaceBytes);
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ADD_MEMORY_STATISTIC_DISPLAY("Fixed heap total size:", "%D (%d B)",
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statistics.fixedHeapTotalSize, statistics.fixedHeapTotalSize);
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ADD_MEMORY_STATISTIC_DISPLAY("Core heap allocation count:", "%d", statistics.coreHeapAllocationCount);
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ADD_MEMORY_STATISTIC_DISPLAY("Core heap total size:", "%D (%d B)", statistics.coreHeapTotalSize, statistics.coreHeapTotalSize);
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ADD_MEMORY_STATISTIC_DISPLAY("Cached boot FS nodes:", "%d", statistics.cachedNodes);
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ADD_MEMORY_STATISTIC_DISPLAY("Cached boot FS directory entries:", "%d", statistics.cachedDirectoryEntries);
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ADD_MEMORY_STATISTIC_DISPLAY("Maximum object cache size:", "%D (%d pages)", statistics.maximumObjectCachePages * ES_PAGE_SIZE,
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statistics.maximumObjectCachePages);
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ADD_MEMORY_STATISTIC_DISPLAY("Approximate object cache size:", "%D (%d pages)", statistics.approximateObjectCacheSize,
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statistics.approximateObjectCacheSize / ES_PAGE_SIZE);
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ADD_MEMORY_STATISTIC_DISPLAY("Commit (pageable):", "%D (%d pages)", statistics.commitPageable * ES_PAGE_SIZE, statistics.commitPageable);
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ADD_MEMORY_STATISTIC_DISPLAY("Commit (fixed):", "%D (%d pages)", statistics.commitFixed * ES_PAGE_SIZE, statistics.commitFixed);
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ADD_MEMORY_STATISTIC_DISPLAY("Commit (total):", "%D (%d pages)", (statistics.commitPageable + statistics.commitFixed) * ES_PAGE_SIZE,
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statistics.commitPageable + statistics.commitFixed);
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ADD_MEMORY_STATISTIC_DISPLAY("Commit limit:", "%D (%d pages)", statistics.commitLimit * ES_PAGE_SIZE, statistics.commitLimit);
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ADD_MEMORY_STATISTIC_DISPLAY("Commit fixed limit:", "%D (%d pages)", statistics.commitFixedLimit * ES_PAGE_SIZE, statistics.commitFixedLimit);
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ADD_MEMORY_STATISTIC_DISPLAY("Commit remaining:", "%D (%d pages)", statistics.commitRemaining * ES_PAGE_SIZE, statistics.commitRemaining);
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ADD_MEMORY_STATISTIC_DISPLAY("Zeroed frames:", "%D (%d pages)", statistics.countZeroedPages * ES_PAGE_SIZE, statistics.countZeroedPages);
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ADD_MEMORY_STATISTIC_DISPLAY("Free frames:", "%D (%d pages)", statistics.countFreePages * ES_PAGE_SIZE, statistics.countFreePages);
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ADD_MEMORY_STATISTIC_DISPLAY("Standby frames:", "%D (%d pages)", statistics.countStandbyPages * ES_PAGE_SIZE, statistics.countStandbyPages);
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ADD_MEMORY_STATISTIC_DISPLAY("Active frames:", "%D (%d pages)", statistics.countActivePages * ES_PAGE_SIZE, statistics.countActivePages);
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EsTimerSet(REFRESH_INTERVAL, [] (EsGeneric context) {
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Instance *instance = (Instance *) context.p;
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if (instance->index == DISPLAY_MEMORY) {
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UpdateDisplay(instance, DISPLAY_MEMORY);
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}
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}, instance);
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}
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}
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#define GET_CONTENT(...) EsBufferFormat(message->getContent.buffer, __VA_ARGS__)
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int ListViewProcessesCallback(EsElement *element, EsMessage *message) {
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if (message->type == ES_MSG_LIST_VIEW_GET_CONTENT) {
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int column = message->getContent.column, index = message->getContent.index;
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ProcessItem *item = &processes[index];
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if (column == 0) GET_CONTENT("%s", item->data.nameBytes, item->data.name);
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else if (column == 1) { if (item->data.pid == -1) GET_CONTENT("n/a"); else GET_CONTENT("%d", item->data.pid); }
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else if (column == 2) GET_CONTENT("%D", item->data.memoryUsage);
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else if (column == 3) GET_CONTENT("%d%%", item->cpuUsage);
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else if (column == 4) GET_CONTENT("%d", item->data.handleCount);
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else if (column == 5) GET_CONTENT("%d", item->data.threadCount);
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else EsAssert(false);
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} else if (message->type == ES_MSG_LIST_VIEW_IS_SELECTED) {
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message->selectItem.isSelected = processes[message->selectItem.index].data.pid == selectedPID;
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} else if (message->type == ES_MSG_LIST_VIEW_SELECT && message->selectItem.isSelected) {
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selectedPID = processes[message->selectItem.index].data.pid;
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EsCommandSetDisabled(&element->instance->commandTerminateProcess, selectedPID < 0 || !FindProcessByPID(processes, selectedPID));
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} else {
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return 0;
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}
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return ES_HANDLED;
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}
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void AddTab(EsElement *toolbar, uintptr_t index, const char *label, bool asDefault = false) {
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EsButton *button = EsButtonCreate(toolbar, ES_BUTTON_RADIOBOX, 0, label);
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button->userData.u = index;
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EsButtonOnCommand(button, [] (Instance *instance, EsElement *element, EsCommand *) {
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if (EsButtonGetCheck((EsButton *) element) == ES_CHECK_CHECKED) {
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UpdateDisplay(instance, element->userData.u);
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}
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});
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if (asDefault) EsButtonSetCheck(button, ES_CHECK_CHECKED);
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}
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void AddListView(EsListView **pointer, EsElement *switcher, EsUICallback callback, EsListViewColumn *columns, size_t columnsSize, uint64_t additionalFlags) {
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*pointer = EsListViewCreate(switcher, ES_CELL_FILL | ES_LIST_VIEW_COLUMNS | additionalFlags);
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(*pointer)->messageUser = callback;
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EsListViewSetColumns(*pointer, columns, columnsSize / sizeof(EsListViewColumn));
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EsListViewInsertGroup(*pointer, 0);
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}
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void TerminateProcess(Instance *instance, EsElement *, EsCommand *) {
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if (selectedPID == 0 /* Kernel */) {
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// Terminating the kernel process is a meaningless action; the closest equivalent is shutting down.
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EsSystemShowShutdownDialog();
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return;
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}
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EsHandle handle = EsProcessOpen(selectedPID);
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if (handle) {
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EsProcessTerminate(handle, 1);
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} else {
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EsRectangle bounds = EsElementGetWindowBounds(instance->listViewProcesses);
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EsAnnouncementShow(instance->window, ES_FLAGS_DEFAULT, (bounds.l + bounds.r) / 2, (bounds.t + bounds.b) / 2, EsLiteral("Could not terminate process"));
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}
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}
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void ProcessApplicationMessage(EsMessage *message) {
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if (message->type == ES_MSG_INSTANCE_CREATE) {
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Instance *instance = EsInstanceCreate(message, "System Monitor");
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EsCommandRegister(&instance->commandTerminateProcess, instance, EsLiteral("Terminate process"), TerminateProcess, 1, "Del", false);
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EsWindow *window = instance->window;
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EsWindowSetIcon(window, ES_ICON_UTILITIES_SYSTEM_MONITOR);
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EsPanel *switcher = EsPanelCreate(window, ES_CELL_FILL | ES_PANEL_SWITCHER, ES_STYLE_PANEL_WINDOW_DIVIDER);
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instance->switcher = switcher;
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instance->textboxGeneralLog = EsTextboxCreate(switcher, ES_TEXTBOX_MULTILINE | ES_CELL_FILL | ES_ELEMENT_DISABLED, &styleMonospacedTextbox);
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AddListView(&instance->listViewProcesses, switcher, ListViewProcessesCallback,
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listViewProcessesColumns, sizeof(listViewProcessesColumns), ES_LIST_VIEW_SINGLE_SELECT);
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instance->panelMemoryStatistics = EsPanelCreate(switcher,
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ES_CELL_FILL | ES_PANEL_TABLE | ES_PANEL_HORIZONTAL | ES_PANEL_V_SCROLL_AUTO, &stylePanelMemoryStatistics);
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EsPanelSetBands(instance->panelMemoryStatistics, 2 /* columns */);
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EsElement *toolbar = EsWindowGetToolbar(window);
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AddTab(toolbar, DISPLAY_PROCESSES, "Processes", true);
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AddTab(toolbar, DISPLAY_GENERAL_LOG, "System log");
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AddTab(toolbar, DISPLAY_MEMORY, "Memory");
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EsSpacerCreate(toolbar, ES_CELL_H_FILL);
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EsButtonOnCommand(EsButtonCreate(toolbar, ES_FLAGS_DEFAULT, 0, "Shutdown"), [] (Instance *, EsElement *, EsCommand *) {
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EsSystemShowShutdownDialog();
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});
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} else if (message->type == ES_MSG_INSTANCE_DESTROY) {
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processes.Free();
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}
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}
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void _start() {
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_init();
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while (true) {
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ProcessApplicationMessage(EsMessageReceive());
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}
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}
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