public static void DisposeAndClearHandle(ref SafeWinHttpHandle safeHandle)
{
if (safeHandle != null)
{
safeHandle.Dispose();
safeHandle = null;
}
}
// Important: WinHttp API calls should not happen while another WinHttp call for the same handle did not
// return. During finalization that was not initiated by the Dispose pattern we don't expect any other WinHttp
// calls in progress.
protected override bool ReleaseHandle()
{
if (_parentHandle != null)
{
_parentHandle.DangerousRelease();
_parentHandle = null;
}
return(WinHttpCloseHandle(handle));
}
public void SetParentHandle(SafeWinHttpHandle parentHandle)
{
Debug.Assert(_parentHandle == null);
Debug.Assert(parentHandle != null);
Debug.Assert(!parentHandle.IsInvalid);
bool ignore = false;
parentHandle.DangerousAddRef(ref ignore);
_parentHandle = parentHandle;
}
private static extern bool WinHttpGetProxyForUrl(
SafeWinHttpHandle sessionHandle, string url,
ref WINHTTP_AUTOPROXY_OPTIONS autoProxyOptions,
out WINHTTP_PROXY_INFO proxyInfo);