// Constructors
Lock::Lock(unsigned spinCount)
{
#if defined(NTDDI_WIN8) && (NTDDI_VERSION >= NTDDI_WIN8)
// On Windows 8 we use InitializeCriticalSectionEx due to Metro-Compatibility
InitializeCriticalSectionEx(&cs, spinCount,
OVR_DEBUG_SELECT(NULL, CRITICAL_SECTION_NO_DEBUG_INFO));
#else
// Spin count init critical section function prototype for Window NT
typedef BOOL (WINAPI *Function_InitializeCriticalSectionAndSpinCount)
(LPCRITICAL_SECTION lpCriticalSection, DWORD dwSpinCount);
// Try to load function dynamically so that we don't require NT
// On Windows NT we will use InitializeCriticalSectionAndSpinCount
static bool initTried = 0;
static Function_InitializeCriticalSectionAndSpinCount pInitFn = 0;
if (!initTried)
{
HMODULE hmodule = ::LoadLibrary(OVR_STR("kernel32.dll"));
pInitFn = (Function_InitializeCriticalSectionAndSpinCount)
::GetProcAddress(hmodule, "InitializeCriticalSectionAndSpinCount");
initTried = true;
}
// Initialize the critical section
if (pInitFn)
pInitFn(&cs, spinCount);
else
::InitializeCriticalSection(&cs);
#endif
}
// Constructors
Lock::Lock(unsigned spinCount)
{
#if defined(NTDDI_WIN8) && (NTDDI_VERSION >= NTDDI_WIN8)
// On Windows 8 we use InitializeCriticalSectionEx due to Metro-Compatibility
InitializeCriticalSectionEx(&cs, (DWORD)spinCount,
OVR_DEBUG_SELECT(NULL, CRITICAL_SECTION_NO_DEBUG_INFO));
#else
::InitializeCriticalSectionAndSpinCount(&cs, (DWORD)spinCount); // This is available with WindowsXP+.
#endif
}
