topic Problem in compiling Threadpool functions like QueUserWorkItem( in Intel® Moderncode for Parallel Architectures

Problem in compiling Threadpool functions like QueUserWorkItem()

coolsandyforyou — Wed, 24 Mar 2010 06:27:32 GMT

I am trying to multi thread my video coded application using threadpool functions.I am trying small examples with these functions. But i could not compile when i use those functions can some body help me tegarding this..

#include

#define MAX_THREADS 6

DWORD WINAPI lprint(LPVOID p);

struct node

{

int a,b;

};

typedef struct node* NODEPTR;

void main()

{

NODEPTR ptr[MAX_THREADS];

DWORD th[MAX_THREADS];

BOOL hth[MAX_THREADS];

int i;

for(i=0;i

{

ptr=(NODEPTR)malloc(sizeof(NODEPTR));

ptr->a=i;

ptr->b=i*1000;

//hth=CreateThread(NULL,0,lprint,ptr,0,&th);

hth=QueueUserWorkItem(lprint,ptr,WT_EXECUTEDEFAULT);

//WT_EXECUTEINIOTHREAD

}

WaitForMultipleObjects(MAX_THREADS, hth , TRUE, INFINITE);

for(i=0;i

{

CloseHandle(hth);

}

getch();

}

DWORD WINAPI lprint(LPVOID p)

{

NODEPTR s1=(NODEPTR) p;

printf("%d %d\\n",s1->a,s1->b);

return 0;

}

Problem in compiling Threadpool functions like QueUserWorkItem(

Dmitry_Vyukov — Wed, 24 Mar 2010 06:53:19 GMT

Do you define _WIN32_WINNT as at least 0x0500?
What error do you get?

Problem in compiling Threadpool functions like QueUserWorkItem(

coolsandyforyou — Wed, 24 Mar 2010 15:08:25 GMT

error C3861: 'QueueUserWorkItem': identifier not found

even after defining i got this above error.

i have included only windows.h ,do i need to include other header files,and my code is in C,can i use this function in C code?

pls reply..

thanks in advance

Problem in compiling Threadpool functions like QueUserWorkItem(

Dmitry_Vyukov — Wed, 24 Mar 2010 18:01:21 GMT

Don't you use MS Visual Studio 2003? It looks like you have substantially outdated Platform SDK...
Do you have definition of QueueUserWorkItem() in winbase.h?

Problem in compiling Threadpool functions like QueUserWorkItem(

coolsandyforyou — Thu, 25 Mar 2010 04:09:28 GMT

I m using visual studio 2008.

I have definition of QueueUserWorkItem() in winbase.h(include dir of platform SDK)

should i use MS VS 2003? cant i use 2008?

how to update the new platformSDK?

Problem in compiling Threadpool functions like QueUserWorkItem(

Dmitry_Vyukov — Thu, 25 Mar 2010 06:14:11 GMT

Humm... well, the following program compiles and links successfully on my MSVC2008

// main.c
#include "windows.h"

DWORD CALLBACK func(void* p)
{
return 0;
}

int main()
{
QueueUserWorkItem(func, 0, 0);
return 0;
}

Problem in compiling Threadpool functions like QueUserWorkItem(

coolsandyforyou — Thu, 25 Mar 2010 09:59:02 GMT

i have included platformSDK include folder,which have WInBase.h,and Queuserworkitem is defined in it.still the same error in my project..im using older version of platform sdk..is this the reason..or do i have to include any extra directories?