fix mppt to not self destruct, log output

rust/src/log/mod.rs

@@ -1,4 +1,5 @@
 use std::{collections::HashMap, sync::Mutex};
+use serde::Serialize;
 use strum_macros::IntoStaticStr; 
 
 use esp_idf_svc::systime::EspSystemTime;
@@ -17,6 +18,7 @@ static mut BUFFER:ConstGenericRingBuffer::<LogEntry, BUFFER_SIZE> = ConstGeneric
 static BUFFER_ACCESS: Lazy<Mutex<&mut ConstGenericRingBuffer::<LogEntry, BUFFER_SIZE>>> = Lazy::new(|| unsafe { Mutex::new(&mut BUFFER) });
 
 
+#[derive(Serialize, Debug, Clone)]
 pub struct LogEntry {
     pub timestamp: u64,
     pub message_id: u32,
@@ -52,6 +54,17 @@ fn limit_length <const LIMIT:usize> (input: &str, target: &mut heapless::String<
     }
 }
 
+pub fn get_log() -> Vec<LogEntry>{
+    let buffer = BUFFER_ACCESS.lock().unwrap();
+    let mut read_copy = Vec::new();
+    for entry in buffer.iter() {
+        let copy = entry.clone();
+        read_copy.push(copy);
+    }
+    drop(buffer);
+    return read_copy;
+}
+
 pub fn log(message_key: LogMessage, number_a: u32, number_b: u32, txt_short:&str, txt_long:&str){
     let mut txt_short_stack:heapless::String<TXT_SHORT_LENGTH> = heapless::String::new();
     let mut txt_long_stack:heapless::String<TXT_LONG_LENGTH> = heapless::String::new();
@@ -94,6 +107,8 @@ pub fn log(message_key: LogMessage, number_a: u32, number_b: u32, txt_short:&str
 }
 
 
+
+
 #[cfg(test)]
 mod tests {
     use super::*;