Can someone help me with this computer science quesiton? I have attached my code

Question

Can someone help me with this computer science quesiton? I have attached my code, I just need to see if im doing this right, Thank you

#include <windows.h>

#include <stdio.h>

DWORD Sum;

DWORD WINAPI Summation (LPVOID Param)

{

DWORD Upper = *(DWORD*) Param;

for (DWORD i = 0; i <= Upper; i++)

Sum +i;

return 0;

}

int main (int argc, char *argv[])

{

DWORD ThreadID;

HANDLE ThreadHandle;

int Param;

if (argc != 2) {

fprintf (stderr, “An integer parameter is required ”);

return -1;

}

Param = atoi(argv[1]);

if(Param < 0) {

fprintf(stderr, “An integer >= 0 is required ”);

return -1;

}

ThreadHandle = CreateThread(

Null,

0,

Summation,

&Param,

&ThreadId);

if (ThreadHandle != NULL) {

WaitForSingleObject(ThreadHandle, INFINITE);

CloseHandle(ThreadHandle);

printf(“sum = %d ”, Sum);

}

}

Objectives: 1. Work with threads on Windows OS 2. Gain experience with an industry standard OS Assignment: (1) Study Win32 APls for thread operations on Windows; (2) Design the function of a thread and write a program to create this thread on Windows OS.

Explanation / Answer

Answer :

#define _WIN32_WINNT 0x0501

#include <windows.h>

#include <stdio.h>

#include <conio.h>

DWORD WINAPI MyThreadFunction(LPVOID lpParam)

{

printf("The parameter: %u. ", *(DWORD*)lpParam);

return 0;

}

int main(void)

{

DWORD dwThreadId, dwThrdParam = 1;

HANDLE hThread;

hThread = CreateThread(

NULL,

0,

MyThreadFunction,

&dwThrdParam,

0,

&dwThreadId);

printf("The thread ID: %d. ", dwThreadId);

if (hThread == NULL)

printf("CreateThread() failed, error: %d. ", GetLastError());

else

printf("It seems the CreateThread() is OK lol! ");

if (CloseHandle(hThread) != 0)

printf("Handle to thread closed successfully. ");

return 0;

}

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