private static ErrorCode TryParseCore(string str, out CallIdHeader header)
{
osip_call_id_t *native = null;
var strPtr = Marshal.StringToHGlobalAnsi(str);
try
{
ErrorCode errorCode = NativeMethods.osip_call_id_init(&native);
if (!errorCode.EnsureSuccess())
{
header = null;
return(errorCode);
}
errorCode = NativeMethods.osip_call_id_parse(native, strPtr);
if (!errorCode.EnsureSuccess())
{
header = null;
return(errorCode);
}
header = FromNative(native);
return(errorCode);
}
finally
{
NativeMethods.osip_call_id_free(native);
Marshal.FreeHGlobal(strPtr);
}
}
internal static CallIdHeader FromNative(osip_call_id_t *native)
{
var header = new CallIdHeader
{
Number = Marshal.PtrToStringAnsi(native->number),
Host = Marshal.PtrToStringAnsi(native->host)
};
return(header);
}
public CallIdHeader DeepClone()
{
osip_call_id_t *native = ToNative();
try
{
return(FromNative(native));
}
finally
{
NativeMethods.osip_call_id_free(native);
}
}
public override string ToString()
{
IntPtr ptr = IntPtr.Zero;
osip_call_id_t *native = ToNative();
try
{
NativeMethods.osip_call_id_to_str(native, &ptr).ThrowOnError();
return(Marshal.PtrToStringAnsi(ptr));
}
finally
{
NativeMethods.osip_call_id_free(native);
Marshal.FreeHGlobal(ptr);
}
}
public static extern ErrorCode osip_call_id_clone(osip_call_id_t *header, osip_call_id_t **dest);
public static extern ErrorCode osip_call_id_to_str(osip_call_id_t *header, IntPtr *dest);
public static extern ErrorCode osip_call_id_parse(osip_call_id_t *header, IntPtr hvalue);
public static extern void osip_call_id_free(osip_call_id_t *header);
