#include <stdio.h>
#include <process.h>
#include <Windows.h>
HANDLE hEvent;
int count;
int iloopnum = 0;
DWORD WINAPI EventChildThreadProcedure(LPVOID arglp)
{
DWORD dwResult = WaitForSingleObject(hEvent, INFINITE); // Waiting Signaled And Auto-Reset Set
DWORD dThreadId = GetCurrentThreadId();
printf("Thread Id = 0x%08x Before Event Count = %d\n", dThreadId, count);
if (dwResult == WAIT_OBJECT_0) // WaitForSingleObject Check
{
for (int n = 0; n < (int)arglp; n++)
{
count++;
}
}
else if (WAIT_FAILED)
{
printf("Error calling WaitForSingleObject()\n");
return -1;
}
printf("Thread Id = 0x%08x After Event Count = %d\n", dThreadId, count);
SetEvent(hEvent);
return 0;
}
DWORD WINAPI NoEventChildThreadProcedure(LPVOID arglp)
{
DWORD dThreadId = GetCurrentThreadId();
printf("Thread Id = 0x%08x Before Event Count = %d\n", dThreadId, count);
for (int n = 0; n < (int)arglp; n++)
{
count++;
}
printf("Thread Id = 0x%08x After Event Count = %d\n", dThreadId, count);
return 0;
}
int EventFunc(void)
{
HANDLE hChildThread[3];
DWORD dUnusedThreadId;
LPCSTR lpcEventName = "nEvent";
hEvent = CreateEvent(NULL, FALSE , TRUE , lpcEventName); // No Duplicate, Auto Reset, Defualt Signal, Name
printf("Input Loop Num : ");
scanf_s("%d", &iloopnum);
hChildThread[0] = (HANDLE)CreateThread(NULL, 0, EventChildThreadProcedure, (LPVOID)iloopnum, 0, &dUnusedThreadId);
hChildThread[1] = (HANDLE)CreateThread(NULL, 0, EventChildThreadProcedure, (LPVOID)iloopnum, 0, &dUnusedThreadId);
hChildThread[2] = (HANDLE)CreateThread(NULL, 0, EventChildThreadProcedure, (LPVOID)iloopnum, 0, &dUnusedThreadId);
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]);
CloseHandle(hEvent);
return 0;
}
int NonEventFunc(void)
{
HANDLE hChildThread[3];
DWORD dUnusedThreadId;
printf("Input Loop Num : ");
scanf_s("%d", &iloopnum);
hChildThread[0] = (HANDLE)CreateThread(NULL, 0, NoEventChildThreadProcedure, (LPVOID)iloopnum, 0, &dUnusedThreadId);
hChildThread[1] = (HANDLE)CreateThread(NULL, 0, NoEventChildThreadProcedure, (LPVOID)iloopnum, 0, &dUnusedThreadId);
hChildThread[2] = (HANDLE)CreateThread(NULL, 0, NoEventChildThreadProcedure, (LPVOID)iloopnum, 0, &dUnusedThreadId);
if (!hChildThread[0] || !hChildThread[1] || !hChildThread[2])
{
printf("Error CreateChildThread Error");
return NULL;
}
DWORD dwResult = WaitForMultipleObjects(3, hChildThread, TRUE, INFINITE);
CloseHandle(hChildThread[0]);
CloseHandle(hChildThread[1]);
CloseHandle(hChildThread[2]);
return 0;
}
int main(void)
{
int i = 0;
while (1)
{
printf("1. Nothing\n2. Set Event\nInput Number = ");
scanf_s("%d", &i);
if (i == 1)
{
NonEventFunc();
return 0;
}
else if (i == 2)
{
EventFunc();
return 0;
}
else
{
printf("Input legal Value\n");
}
}
}
C++
복사
1. Nothing
2. Set Event
Input Number = 1
Input Loop Num : 10000000
Thread Id = 0x00003564 Before Nothing Count = 0
Thread Id = 0x00005f24 Before Nothing Count = 5007
Thread Id = 0x00005788 Before Nothing Count = 700821
Thread Id = 0x00005f24 After Nothing Count = 6823708
Thread Id = 0x00003564 After Nothing Count = 11919642
Thread Id = 0x00005788 After Nothing Count = 12130188
1. Nothing
2. Set Event
Input Number = 2
Input Loop Num : 10000000
Thread Id = 0x00005d8c Before Event Count = 0
Thread Id = 0x00005d8c After Event Count = 10000000
Thread Id = 0x00001684 Before Event Count = 10000000
Thread Id = 0x00001684 After Event Count = 20000000
Thread Id = 0x00005804 Before Event Count = 20000000
Thread Id = 0x00005804 After Event Count = 30000000
C++
복사
