Error handling, I should make it better though

src/files.rs

@@ -44,12 +44,12 @@ pub fn watch_files(file_list: &[PathBuf]) -> u8
             Err(e) =>
             {
                 println!("watch error: {:?}", e);
-                return 2
+                return 1
             }
         }
     }
     println!("Watching files...");
-    1
+    2
 }
 
 pub fn read_file(file_name: &str, depth: u8) ->

src/main.rs

@@ -7,11 +7,12 @@ use std::
     sync::mpsc,
     thread,
     path::PathBuf,
+    time::Duration,
 };
 use lazy_static::lazy_static;
 
-
 mod files;
+mod pages;
 
 lazy_static! {
     static ref ROOT_DIR: PathBuf = fs::canonicalize(PathBuf::from("./root")).unwrap();
@@ -44,13 +45,20 @@ fn main()  -> io::Result<()>
             loop
             {
                 let code = files::watch_files(&file_list);
-                if code == 0
+                // Pause, because often the metadata, name and contents are all registered at the
+                // same time, resulting in multiple re-encodes
+                thread::sleep(Duration::from_millis(100));
+                match code
+                {
+                    0 =>
                     {
                         println!("Re encoding index");
 
                         (bytes, file_list) = files::read_file(INDEX_FILE, 0);
                         file_list.push(ROOT_DIR.join(INDEX_FILE));
                         tx.send(bytes).unwrap();
+                    },
+                    error => println!("Watch error: {}", error),
                 }
             }
         }
@@ -62,7 +70,7 @@ fn main()  -> io::Result<()>
         bytes = match bytes_result
         {
             Ok(bytes_data) => bytes_data,
-            Err(error) => bytes,
+            Err(_) => bytes,
         };
         let stream = stream.unwrap();
         handle_connection(stream, &bytes);
@@ -80,7 +88,7 @@ fn handle_connection(mut stream: TcpStream, bytes: &[u8])
         .take_while(|line| !line.is_empty())
         .collect();
     println!("REQUEST: {:?}", notp_request); // TODO format requests in npon
-    let page_bytes = get_page(bytes, &notp_request[0]); // first request line is the page atm
+    let page_bytes = pages::get_page(bytes, &notp_request[0]); // first request line is the page atm
     if let Err(e) = stream.write_all(&page_bytes)
     {
         eprintln!("Failed to send response: {}", e);
@@ -91,67 +99,3 @@ fn handle_connection(mut stream: TcpStream, bytes: &[u8])
     }
 }
 
-// TODO these functions are so shit
-// Finds the index of the first occurrence of search_bytes in bytes.
-fn find_pattern(bytes: &[u8], search_bytes: &[u8]) -> Option<usize> 
-{
-    bytes.windows(search_bytes.len())
-        .position(|window| window == search_bytes)
-}
-// Finds the closing brace of the opening brace passed as a param
-fn find_closing_brace(bytes: &[u8], opening_brace_index: usize) -> Option<usize>
-{
-    let mut depth: i8 = 0;
-    for i in opening_brace_index..bytes.len()-1
-    {
-        if bytes[i] == 5 { 
-            depth += 1; }
-        else if bytes[i] == 6 
-        {
-            depth -= 1;
-            if depth == 0 { return Some(i) }
-        }
-        //println!("{}\t{}", bytes[i], depth);
-    }
-    None
-}
-fn get_page(bytes: &[u8], page: &str) -> Vec<u8>
-{
-    let mut page_bytes: Vec<u8> = vec![1];
-    let search_pages_bytes: Vec<u8> = vec![3, 112, 97, 103, 101, 115, 4];
-    let mut search_bytes: Vec<u8> = vec![3];
-    search_bytes.append(&mut page.as_bytes().to_vec());
-    search_bytes.push(4);
-
-    let mut opening_page_index: usize = 0;
-    let mut closing_page_index: usize = 0;
-    let mut opening_index: usize = 0;
-    let mut closing_index: usize = 0;
-
-    if let Some(opening_index) = find_pattern(&bytes, &search_pages_bytes)
-    {
-        if let Some(closing_index) = find_closing_brace(&bytes, opening_index+search_pages_bytes.len())
-        {
-            //println!("found pages: {} to {}", opening_index, closing_index);
-            if let Some(opening_page_index) = find_pattern(&bytes[opening_index..closing_index+1], &search_bytes)
-            {
-                //println!("{:?}", &bytes[opening_index+opening_page_index..]);
-                if let Some(closing_page_index) = find_closing_brace
-                (
-                    &bytes[opening_index+opening_page_index..],
-                    search_bytes.len()
-                )
-                {
-                    //println!("found page: {} to {}", opening_index+opening_page_index, opening_index+closing_page_index);
-                    //println!("found page: {:?}", &bytes[opening_index+opening_page_index..opening_index+opening_page_index+closing_page_index+1]);
-                    page_bytes.append(&mut bytes[opening_page_index+opening_index..opening_page_index+closing_page_index+opening_index+1].to_vec());
-                    page_bytes.push(2);
-                    return page_bytes
-                }
-            }
-        }
-    }
-    page_bytes.push(10); // Page not found error message
-    page_bytes.push(2);
-    page_bytes
-}

src/pages.rs

@@ -0,0 +1,60 @@
+// TODO these functions are so shit
+/// Finds the index of the first occurrence of search_bytes in bytes.
+fn find_pattern(bytes: &[u8], search_bytes: &[u8]) -> Option<usize> 
+{
+    bytes.windows(search_bytes.len())
+        .position(|window| window == search_bytes)
+}
+/// Finds the closing brace of the opening brace passed as a param
+fn find_closing_brace(bytes: &[u8], opening_brace_index: usize) -> Option<usize>
+{
+    let mut depth: i8 = 0;
+    for i in opening_brace_index..bytes.len()-1
+    {
+        if bytes[i] == 5 { 
+            depth += 1; }
+        else if bytes[i] == 6 
+        {
+            depth -= 1;
+            if depth == 0 { return Some(i) }
+        }
+        //println!("{}\t{}", bytes[i], depth);
+    }
+    None
+}
+/// Searches the bytes for a particular page
+pub fn get_page(bytes: &[u8], page: &str) -> Vec<u8>
+{
+    let mut page_bytes: Vec<u8> = vec![1];
+    let search_pages_bytes: Vec<u8> = vec![3, 112, 97, 103, 101, 115, 4];
+    let mut search_bytes: Vec<u8> = vec![3];
+    search_bytes.append(&mut page.as_bytes().to_vec());
+    search_bytes.push(4);
+
+    if let Some(opening_index) = find_pattern(&bytes, &search_pages_bytes)
+    {
+        if let Some(closing_index) = find_closing_brace(&bytes, opening_index+search_pages_bytes.len())
+        {
+            //println!("found pages: {} to {}", opening_index, closing_index);
+            if let Some(opening_page_index) = find_pattern(&bytes[opening_index..closing_index+1], &search_bytes)
+            {
+                //println!("{:?}", &bytes[opening_index+opening_page_index..]);
+                if let Some(closing_page_index) = find_closing_brace
+                (
+                    &bytes[opening_index+opening_page_index..],
+                    search_bytes.len()
+                )
+                {
+                    //println!("found page: {} to {}", opening_index+opening_page_index, opening_index+closing_page_index);
+                    //println!("found page: {:?}", &bytes[opening_index+opening_page_index..opening_index+opening_page_index+closing_page_index+1]);
+                    page_bytes.append(&mut bytes[opening_page_index+opening_index..opening_page_index+closing_page_index+opening_index+1].to_vec());
+                    page_bytes.push(2);
+                    return page_bytes
+                }
+            }
+        }
+    }
+    page_bytes.push(10); // Page not found error message
+    page_bytes.push(2);
+    page_bytes
+}