mirror of
https://github.com/Artikash/Textractor.git
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54 lines
2.1 KiB
C++
54 lines
2.1 KiB
C++
#include "extensions.h"
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#include <shared_mutex>
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#include <QDir>
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std::optional<Extension> LoadExtension(QString file)
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{
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// Extension file format: {NUMBER}_{NAME}.dll and exports "OnNewSentence"
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QRegularExpressionMatch parsedFile = QRegularExpression("^(\\d+)_(.+).dll$").match(file);
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if (!parsedFile.hasMatch()) return {};
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HMODULE module = GetModuleHandleW(file.toStdWString().c_str());
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if (!module) module = LoadLibraryW(file.toStdWString().c_str());
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if (!module) return {};
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FARPROC callback = GetProcAddress(module, "OnNewSentence");
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if (!callback) return {};
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return Extension{ parsedFile.captured(1).toInt(), parsedFile.captured(2), (wchar_t*(*)(const wchar_t*, const InfoForExtension*))callback };
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}
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std::shared_mutex extenMutex;
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std::set<Extension> extensions;
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std::set<Extension> LoadExtensions()
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{
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std::set<Extension> newExtensions;
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QStringList files = QDir().entryList();
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for (auto file : files)
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if (auto extension = LoadExtension(file)) newExtensions.insert(extension.value());
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std::unique_lock<std::shared_mutex> extenLock(extenMutex);
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return extensions = newExtensions;
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}
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bool DispatchSentenceToExtensions(std::wstring& sentence, std::unordered_map<std::string, int64_t> miscInfo)
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{
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bool success = true;
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wchar_t* sentenceBuffer = (wchar_t*)HeapAlloc(GetProcessHeap(), 0, (sentence.size() + 1) * sizeof(wchar_t));
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wcscpy_s(sentenceBuffer, sentence.size() + 1, sentence.c_str());
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InfoForExtension miscInfoLinkedList{ "", 0, nullptr };
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InfoForExtension* miscInfoTraverser = &miscInfoLinkedList;
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for (auto& i : miscInfo) miscInfoTraverser = miscInfoTraverser->next = new InfoForExtension{ i.first.c_str(), i.second, nullptr };
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std::shared_lock<std::shared_mutex> extenLock(extenMutex);
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for (auto extension : extensions)
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{
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wchar_t* nextBuffer = extension.callback(sentenceBuffer, &miscInfoLinkedList);
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if (nextBuffer == nullptr) { success = false; break; }
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if (nextBuffer != sentenceBuffer) HeapFree(GetProcessHeap(), 0, sentenceBuffer);
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sentenceBuffer = nextBuffer;
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}
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sentence = std::wstring(sentenceBuffer);
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HeapFree(GetProcessHeap(), 0, sentenceBuffer);
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return success;
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}
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