root/misc/cgo/test/cthread_windows.c

DEFINITIONS

1. addThread
2. doAdd

// Copyright 2013 The Go Authors.  All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <process.h>
#include "_cgo_export.h"

__stdcall
static unsigned int
addThread(void *p)
{
        int i, max;
        
        max = *(int*)p;
        for(i=0; i<max; i++)
                Add(i);
        return 0;
}

void
doAdd(int max, int nthread)
{
        enum { MaxThread = 20 };
        int i;
        uintptr_t thread_id[MaxThread];
        
        if(nthread > MaxThread)
                nthread = MaxThread;
        for(i=0; i<nthread; i++)
                thread_id[i] = _beginthreadex(0, 0, addThread, &max, 0, 0);
        for(i=0; i<nthread; i++) {
                WaitForSingleObject((HANDLE)thread_id[i], INFINITE);
                CloseHandle((HANDLE)thread_id[i]);
        }
}