TaskSystem/SystemProject/Process.c

#define _CRT_SECURE_NO_WARNINGS

#include <Windows.h>
#include <stdio.h>
#include "QuadEq.h"

#define FILE_OUT "C:\\Users\\òàðàíàà\\source\\repos\\TaskSystem\\x64\\Debug\\result.txt"

QuadraticEquation* readFile(char* nameFile)
{
	QuadraticEquation* equation = malloc(sizeof(QuadraticEquation));
	FILE* file = fopen(nameFile, "r");
	if (file == NULL)
	{
		printf("Ôàéëà ñ èõîäíûìè äàííûìè íå ñóùåñòâóåò. Ñîçäàéòå ôàéë %s \n", nameFile);
		exit(ERROR_OPEN_FILE);
	}
	int resultRead = fscanf(file, "%lf %lf %lf", &equation->a, &equation->b, &equation->c);

	if (resultRead == 0)
	{
		printf("Íå óäàëîñü êîððåêòíî ïðî÷èòàòü ôàéë.\n");
		exit(ERROR_READ_DATA);
	}
	if (equation->a == 0 && equation->b == 0 && equation->c == 0)
	{
		printf("Âñå êîýôèöèåíòû ðàâíû 0. Ïðîâåðüòå èñõîäíûé ôàéë.\n");
		exit(ERROR_READ_DATA);
	}
	if (equation->a == 0)
	{
		printf("Êîýôôèöèåíò à ðàâåí 0. Ýòî íå êâàäðàòíîå óðàâíåíèå.\n");
		exit(ERROR_READ_DATA);
	}
	fclose(file);
	return equation;
}

int startWorkWithProcess()
{
	QuadraticEquation* myEq = readFile(FILE_IN);
	LPSTR inputKoef = calloc(BUFFER, sizeof(char));
	sprintf(inputKoef, "%lf %lf %lf\0", myEq->a, myEq->b, myEq->c);
	/*
	* Äàííûå äëÿ ïåðåäà÷è â äî÷åðíèé ïðîöåññ:
	* childName - èìÿ äî÷åðíåãî èñïîëÿåìîãî ôàéëà
	* commandLine - àðãóìåíòû êîìàíäíîé ñòðîêè äëÿ ïåðåäà÷è â íîâûé ïðîöåññ
	* si - áëîê íà÷àëüíûõ ïàðàìåòðîâ
	* pi - ñòðóêòóðà, îïèñûâàþùàÿ ïîðîæäåííûé ïðîöåññ
	*/

	LPCSTR childName = "C:\\Users\\òàðàíàà\\source\\repos\\TaskSystem\\x64\\Debug\\ChildProcess.exe";

	//LPCSTR childName = "ChildProcess.exe";
	LPSTR commandLine = inputKoef;
	STARTUPINFO si;
	/*Çàïîëíåíèå äàííûõ ñòðóêòóðû ñòàíäàðòíûìè äàííûìè*/
	ZeroMemory(&si, sizeof(si));
	si.cb = sizeof(si);
	PROCESS_INFORMATION pi;
	ZeroMemory(&pi, sizeof(pi));

	//TRUE / FALSE îòâå÷àåò çà íàñëåäîâàíèå äåñêðèïòîðîâ.  äàííîì ñëó÷àå ðàáîòàåò è áåç ýòîãî.
	if (!CreateProcessA(childName, commandLine, NULL, NULL, FALSE, NULL, NULL, NULL, &si, &pi))
	{
		printf("Íå óäàëîñü ñîçäàòü ïðîöåññ. Êîä îøèáêè: %d.\n", GetLastError());
	}

	// Îæèäàíèå çàâåðøåíèÿ äî÷åðíåãî ïðîöåññà
	WaitForSingleObject(pi.hProcess, INFINITE);
	DWORD childexitcode;
	GetExitCodeProcess(pi.hProcess, &childexitcode);
	CloseHandle(pi.hProcess);
	CloseHandle(pi.hThread);
	printf("Êîä çàâåðøåíèÿ äî÷åðíåãî ïðîöåññà %d\n", childexitcode);
	if (childexitcode >= 0 && childexitcode <= 2)
	{
		FILE* resFile = fopen(FILE_OUT, "r");
		if (resFile == NULL)
		{
			printf("×òî-òî ïîøëî íå òàê ïðè ïîëó÷åíèè ðåçóëüòàòîâ äî÷åðíåãî ïðîöåññà\n");
			exit(-1);
		}
		while (!feof(resFile))
		{
			char* str = calloc(BUFFER, sizeof(char));
			fgets(str, BUFFER, resFile);
			printf("%s", str);
		}
	}
	else
	{
		printf("×òî-òî ïîøëî íå òàê ïðè ðåøåíèè óðàâíåíèÿ\n");
		exit(-1);
	}
	system("pause");
	return 0;
}