116 lines
3.6 KiB
C++
116 lines
3.6 KiB
C++
#include "internal.hpp"
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#include "SharedMemoryAccess.hpp"
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#include "vkvm.hpp"
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#include <csignal>
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namespace vkvm {
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Impl impl;
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auto setDefaultValues() -> void {
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impl.localMemoryWarn = false;
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if (getSharedMemory() != nullptr) {
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setMode(GraphicMode::RGB);
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setCharactersPerRow(60);
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setCharactersPerColumn(20);
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setHeight(600);
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setWidth(800);
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setMousePosition(42, 42);
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setBackgroundColor(black);
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setForegroundColor(white);
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setRedrawInterval(500);
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setTimerInterruptInterval(1000);
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setFont(FontType::ProFontIIX);
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}
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impl.localMemoryWarn = true;
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}
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auto sendSignal(pid_t pid, int signalNumber) -> void {
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kill(pid, signalNumber);
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}
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auto onSignal(int signalNumber, void(*callback)(int)) -> void {
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signal(signalNumber, callback);
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}
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auto getInterruptTable() -> InterruptEntry * {
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return reinterpret_cast<InterruptEntry *>(getSharedMemory() + sizeof(Registers) + impl.reservedSize);
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}
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auto getRegisters() -> Registers * {
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return reinterpret_cast<Registers *>(getSharedMemory());
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}
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auto getTextArea() -> char * {
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return ((getSharedMemory() + sizeof(Registers) + impl.reservedSize) +
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sizeof(InterruptEntry) * impl.interruptEntyCount);
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}
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auto getPixelArea() -> char * {
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return (((getSharedMemory() + sizeof(Registers) + impl.reservedSize) +
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sizeof(InterruptEntry) * impl.interruptEntyCount) +
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getCharactersPerRow() * getCharactersPerColumn());
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}
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auto callEvent(EventType type) -> bool {
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auto ivt = getInterruptTable();
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for(int i = 0; i < impl.interruptEntrysPerEventType;i++){
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auto &entry= ivt[type * impl.interruptEntrysPerEventType + i];
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if (entry.pid != 0) {
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sendSignal(entry.pid, entry.signum);
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}
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}
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return true;
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}
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auto setLayoutVersion(LayoutVersion newValue) -> void {
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lockSharedMemory();
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getRegisters()->layout_version = newValue;
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unlockSharedMemory();
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callEvent(EventType::UpdateControlRegisters);
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}
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auto setCharactersPerColumn(int newValue) -> void {
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lockSharedMemory();
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getRegisters()->characters_per_column = newValue;
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unlockSharedMemory();
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callEvent(EventType::UpdateControlRegisters);
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}
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auto setCharactersPerRow(int newValue) -> void {
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lockSharedMemory();
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getRegisters()->characters_per_row = newValue;
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unlockSharedMemory();
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callEvent(EventType::UpdateControlRegisters);
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}
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auto setMousePosition(int x, int y) -> void {
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lockSharedMemory();
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getRegisters()->mouse_pos_x = x;
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getRegisters()->mouse_pos_y = y;
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unlockSharedMemory();
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callEvent(EventType::UpdateControlRegisters);
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}
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auto buttonPressed(KeyCode keyCode) -> void {
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lockSharedMemory();
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auto reg = getRegisters();
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reg->keyboardBuffer[(reg->keyboardBuffer_index_write) % keyboardBufferSize] = keyCode;
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unlockSharedMemory();
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}
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auto getRegisteredProcesses(EventType eventType) -> std::vector<int> {
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std::vector<int> result;
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auto ivt = getInterruptTable();
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for(int i = 0; i < impl.interruptEntrysPerEventType;i++){
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auto &entry= ivt[eventType * impl.interruptEntrysPerEventType + i];
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if (entry.pid != 0) {
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result.push_back(entry.pid);
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}
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}
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return result;
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}
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}
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