#include <stdio.h>
#include <process.h>
#include <Windows.h>
int iloopnum;
LONG volatile count; // Define Interlocked Argument
DWORD WINAPI InterLockedChildThreadProcedure(LPVOID arglp)
{
DWORD dThreadId = GetCurrentThreadId();
printf("Thread Id = 0x%08x Before InterLocked Count = %d\n",dThreadId,count);
for (int n = 0; n < (int)arglp; n++)
{
InterlockedIncrement(&count); // Interlocked Add Func
}
printf("Thread Id = 0x%08x After InterLocked Count = %d\n", dThreadId, count);
return 0;
}
DWORD WINAPI NoInterLockedChildThreadProcedure(LPVOID arglp)
{
DWORD dThreadId = GetCurrentThreadId();
printf("Thread Id = 0x%08x Before Nothing Count = %d\n", dThreadId, count);
for (int n = 0; n < (int)arglp; n++)
{
count++;
}
printf("Thread Id = 0x%08x After Nothing Count = %d\n", dThreadId, count);
return 0;
}
int CreateThreadFunc(int argv)
{
HANDLE hChildThread[3];
DWORD dUnusedThreadId;
int check = argv;
printf("Input Loop Num : ");
scanf_s("%d", &iloopnum);
while (1)
{
if (check == 1)
{
hChildThread[0] = (HANDLE)CreateThread(NULL, 0, NoInterLockedChildThreadProcedure, (LPVOID)iloopnum, 0, &dUnusedThreadId);
hChildThread[1] = (HANDLE)CreateThread(NULL, 0, NoInterLockedChildThreadProcedure, (LPVOID)iloopnum, 0, &dUnusedThreadId);
hChildThread[2] = (HANDLE)CreateThread(NULL, 0, NoInterLockedChildThreadProcedure, (LPVOID)iloopnum, 0, &dUnusedThreadId);
break;
}
else if (check == 2)
{
hChildThread[0] = (HANDLE)CreateThread(NULL, 0, InterLockedChildThreadProcedure, (LPVOID)iloopnum, 0, &dUnusedThreadId);
hChildThread[1] = (HANDLE)CreateThread(NULL, 0, InterLockedChildThreadProcedure, (LPVOID)iloopnum, 0, &dUnusedThreadId);
hChildThread[2] = (HANDLE)CreateThread(NULL, 0, InterLockedChildThreadProcedure, (LPVOID)iloopnum, 0, &dUnusedThreadId);
break;
}
else
{
printf("iliegal Check Value");
return 0;
}
}
if (!hChildThread[0] || !hChildThread[1] || !hChildThread[2])
{
printf("Error CreateChildThread Error");
return NULL;
}
DWORD dwResult = WaitForMultipleObjects(3, hChildThread, TRUE, INFINITE);
if (dwResult != WAIT_OBJECT_0)
{
printf("Error WaitForMultipleObject()");
return 0;
}
CloseHandle(hChildThread[0]);
CloseHandle(hChildThread[1]);
CloseHandle(hChildThread[2]);
return 0;
}
int main(void)
{
int i = 0;
while (1)
{
printf("1. Nothing\n2. Set InterLocked\nInput Number : ");
scanf_s("%d", &i);
if (i == 1 || i == 2)
{
CreateThreadFunc(i);
return 0;
}
else
{
printf("Input legal Value\n");
}
}
}
C++
복사
1. Nothing
2. Set InterLocked
Input Number : 1
Input Loop Num : 10000000
Thread Id = 0x00004fb8 Before Nothing Count = 0
Thread Id = 0x000063d0 Before Nothing Count = 5865
Thread Id = 0x00006364 Before Nothing Count = 54040
Thread Id = 0x00006364 After Nothing Count = 8021225
Thread Id = 0x000063d0 After Nothing Count = 8974293
Thread Id = 0x00004fb8 After Nothing Count = 10627299
1. Nothing
2. Set InterLocked
Input Number L: 2
Input Loop Num : 10000000
Thread Id = 0x00004fc0 Before InterLocked Count = 0
Thread Id = 0x0000409c Before InterLocked Count = 0
Thread Id = 0x00005ab4 Before InterLocked Count = 21530
Thread Id = 0x0000409c After InterLocked Count = 21388029
Thread Id = 0x00004fc0 After InterLocked Count = 29615583
Thread Id = 0x00005ab4 After InterLocked Count = 30000000
C++
복사
