feat: implement the fourth lab

BSUIR-SFIT-Labs · Dec 24, 2020 · d322785 · d322785
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diff --git a/Lab_4/Lab_4.sln b/Lab_4/Lab_4.sln
@@ -0,0 +1,31 @@
+
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+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Lab_4", "Lab_4\Lab_4.vcxproj", "{2AF82599-EFCF-468C-81C4-8B1135E26614}"
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+		Debug|x86 = Debug|x86
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
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+		{2AF82599-EFCF-468C-81C4-8B1135E26614}.Release|x64.Build.0 = Release|x64
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+		{2AF82599-EFCF-468C-81C4-8B1135E26614}.Release|x86.Build.0 = Release|Win32
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diff --git a/Lab_4/Lab_4/Lab_4.cpp b/Lab_4/Lab_4/Lab_4.cpp
@@ -0,0 +1,145 @@
+#include <iostream>
+#include <fstream>
+#include <vector>
+#include <string>
+#include <functional>
+
+#include "TaskQueue.h"
+#include "TaskExecutor.h"
+
+using namespace std;
+
+constexpr auto PATH_TO_FILE = "D:\\1.txt";
+constexpr auto THREAD_COUNT = 10;
+
+vector<string>* vectorOfStrings = new vector<string>();
+vector<vector<string>*>* vectorOfParts = new vector<vector<string>*>();
+
+bool getFileContent(string, vector<string>*);
+void splitVectors(TaskQueue, int);
+void addVector(vector<string>*, TaskQueue);
+vector<string> mergeTwoVectors(vector<string>, vector<string>);
+vector<string> mergeVectors(void);
+void printVectors(vector<string>);
+
+int main()
+{
+	bool isFileContentReceived = getFileContent(PATH_TO_FILE, vectorOfStrings);
+
+	if (!isFileContentReceived)
+	{
+		cout << "File isn't exist" << endl;
+		return -1;
+	}
+
+	TaskQueue taskQueue;
+	TaskExecutor taskExecutor(taskQueue);
+
+	int threadsCount = THREAD_COUNT > vectorOfStrings->size() 
+		? vectorOfStrings->size() : THREAD_COUNT;
+
+	splitVectors(taskQueue, threadsCount);
+	taskExecutor.startExecution(threadsCount);
+
+	vector<string> sortedVectors = mergeVectors();
+	printVectors(sortedVectors);
+
+	return 0;
+}
+
+bool getFileContent(string pathToFile, vector<string>* vectorOfStrings)
+{
+	ifstream file(pathToFile);
+	string line;
+
+	if (!file.good())
+		return false;
+
+	while (getline(file, line))
+	{
+		string new_line;
+		new_line = line + "\n";
+
+		if (new_line.size() != 0)
+			vectorOfStrings->push_back(new_line);
+	}
+
+	return true;
+}
+
+void splitVectors(TaskQueue taskQueue, int threadCount)
+{
+	size_t onePartCount = (size_t)floor(((vectorOfStrings->size()) / threadCount));
+
+	for (size_t i = 0; i < vectorOfStrings->size(); i += onePartCount)
+	{
+		vector<string>* newVector = new vector<string>();
+		vectorOfParts->push_back(newVector);
+
+		for (size_t j = i; j < i + onePartCount; j++)
+		{
+			if (j < vectorOfStrings->size())
+			{
+				string str = (*vectorOfStrings)[j];
+				newVector->push_back(str);
+			}
+		}
+
+		addVector(newVector, taskQueue);
+	}
+}
+
+void addVector(vector<string>* vect, TaskQueue queue) 
+{
+	queue.push([vect]() {
+		std::vector<std::string>* copy = vect;
+		std::sort(vect->begin(), vect->end());
+		});
+}
+
+vector<string> mergeTwoVectors(vector<string> firstVector, vector<string> secondVector)
+{
+	size_t firstVectorSize = firstVector.size();
+	size_t secondVectorSize = secondVector.size();
+
+	vector<string> resultVector;
+	resultVector.reserve(firstVectorSize + secondVectorSize);
+
+	size_t i = 0;
+	size_t j = 0;
+
+	while (i < firstVectorSize && j < secondVectorSize)
+	{
+		if (firstVector[i] <= secondVector[j])
+			resultVector.push_back(firstVector[i++]);
+		else
+			resultVector.push_back(secondVector[j++]);
+	}
+
+	while (i < firstVectorSize)
+		resultVector.push_back(firstVector[i++]);
+
+	while (j < secondVectorSize)
+		resultVector.push_back(secondVector[j++]);
+
+	return resultVector;
+}
+
+vector<string> mergeVectors()
+{
+	vector<string> tmpVector;
+
+	if (vectorOfParts->size() > 0)
+		tmpVector = *(*vectorOfParts)[0];
+
+	for (size_t i = 1; i < vectorOfParts->size(); i++)
+		tmpVector = mergeTwoVectors(tmpVector, *(*vectorOfParts)[i]);
+
+	return tmpVector;
+}
+
+void printVectors(vector<string> vector)
+{
+	for (size_t i = 0; i < vector.size(); i++)
+		cout << vector[i] << endl;
+}
diff --git a/Lab_4/Lab_4/Lab_4.vcxproj b/Lab_4/Lab_4/Lab_4.vcxproj
@@ -0,0 +1,153 @@
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