Function barrierWait

cpp/3_CUDA_Features/memMapIPCDrv/memMapIpc.cpp:101–120

CUfunction _memMapIpc_kernel;

static void barrierWait(volatile int *barrier, volatile int *sense, unsigned int n)
{
    int count;

    // Check-in
    count = cpu_atomic_add32(barrier, 1);
    if (count == n) { // Last one in
        *sense = 1;
    }
    while (!*sense)
        ;

    // Check-out
    count = cpu_atomic_add32(barrier, -1);
    if (count == 0) { // Last one out
        *sense = 0;
    }
    while (*sense)
        ;
}

// Windows-specific LPSECURITYATTRIBUTES
void getDefaultSecurityDescriptor(CUmemAllocationProp *prop)