static Delegate GetProcDelegate <TDelegate>(WebHostUnsafeNativeMethods.SafeFreeLibrary library, string procName)
{
#pragma warning suppress 56523 // [....], the Win32Exception ctor calls Marshal.GetLastWin32Error
IntPtr funcPtr = WebHostUnsafeNativeMethods.GetProcAddress(library, procName);
if (funcPtr == IntPtr.Zero)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(SR.GetString(SR.WebHostProcNotFound,
procName, SMSvcHost.ListenerAdapterNativeLibrary)));
}
return(Marshal.GetDelegateForFunctionPointer(funcPtr, typeof(TDelegate)));
}
static ListenerAdapterBase()
{
#pragma warning suppress 56523 // [....], the Win32Exception ctor calls Marshal.GetLastWin32Error
webHostIpm = WebHostUnsafeNativeMethods.LoadLibraryEx(SMSvcHost.ListenerAdapterNativeLibrary, IntPtr.Zero, WebHostUnsafeNativeMethods.LOAD_WITH_ALTERED_SEARCH_PATH);
if (webHostIpm.IsInvalid)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception());
}
webhostGetVersion = (WebHostUnsafeNativeMethods.WebhostGetVersion)GetProcDelegate <WebHostUnsafeNativeMethods.WebhostGetVersion>(webHostIpm, "WebhostGetVersion");
webhostRegisterProtocol = (WebHostUnsafeNativeMethods.WebhostRegisterProtocol)GetProcDelegate <WebHostUnsafeNativeMethods.WebhostRegisterProtocol>(webHostIpm, "WebhostRegisterProtocol");
webhostUnregisterProtocol = (WebHostUnsafeNativeMethods.WebhostUnregisterProtocol)GetProcDelegate <WebHostUnsafeNativeMethods.WebhostUnregisterProtocol>(webHostIpm, "WebhostUnregisterProtocol");
webhostOpenListenerChannelInstance = (WebHostUnsafeNativeMethods.WebhostOpenListenerChannelInstance)GetProcDelegate <WebHostUnsafeNativeMethods.WebhostOpenListenerChannelInstance>(webHostIpm, "WebhostOpenListenerChannelInstance");
webhostCloseAllListenerChannelInstances = (WebHostUnsafeNativeMethods.WebhostCloseAllListenerChannelInstances)GetProcDelegate <WebHostUnsafeNativeMethods.WebhostCloseAllListenerChannelInstances>(webHostIpm,
"WebhostCloseAllListenerChannelInstances");
}