Lazily initializing QUOTE as static

src/config.rs

@@ -1,7 +1,7 @@
 use crate::{RaTlsConfigBuilder, RaTlsError};
 
 #[cfg(feature = "occlum")]
-use crate::quote::Quote;
+use crate::quote::{Quote, STATIC_QUOTE};
 
 use rustls::{ClientConfig, ServerConfig};
 
@@ -56,6 +56,11 @@ impl InstanceMeasurement {
         }
     }
 
+
+    fn generate_static_empty_quote() -> Result<&'static Quote, RaTlsError> {
+        Ok(STATIC_QUOTE.as_ref().map_err(|e| e.clone())?)
+    }
+
     pub(crate) fn check_quote_measurements(&self, quote: &Quote) -> bool {
         let mut result = false;
         if let Some(mrsigners) = &self.mrsigners {

src/error.rs

@@ -1,6 +1,6 @@
 use std::{error::Error, fmt::Display};
 
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub enum RaTlsError {
     CertificateBuildError(String),
     QuoteError(String),

src/quote.rs

@@ -143,6 +143,18 @@ lazy_static! {
     };
 }
 
+// lazy_static! {
+//     pub static ref STATIC_QUOTE: once_cell::sync::OnceCell<Quote> =
+//         OnceCell::with_value(Quote::from_report_data([0u8; 64]).unwrap());
+// }
+// unsafe impl Send for Quote {}
+
+lazy_static! {
+    pub static ref STATIC_QUOTE: Result<Quote, RaTlsError> = Quote::from_report_data([0u8; 64]);
+}
+
+unsafe impl Sync for Quote {}
+
 pub struct IoctlClient {
     fd: HandleType,
     quote_size: Option<u32>,