diff --git a/src/utils/prcs.rs b/src/utils/prcs.rs
index 8cc865b..7c718ab 100644
--- a/src/utils/prcs.rs
+++ b/src/utils/prcs.rs
@@ -108,7 +108,7 @@ pub async fn is_frozen(name: &str) -> bool {
 /// 
 /// *input*      : `&str`
 ///
-/// *output*     : -
+/// *output*     : ()
 ///
 /// *initiator*  : fn `utils::files::file_handler`, fn `utils::files::service_handler`, fn `utils::run_daemons`
 ///
@@ -131,7 +131,7 @@ pub async fn terminate_process(name: &str) {
 /// 
 /// *input*      : `&str`
 ///
-/// *output*     : -
+/// *output*     : ()
 ///
 /// *initiator*  : fn `utils::run_daemons`
 ///
@@ -154,7 +154,7 @@ pub async fn freeze_process(name: &str) {
 /// 
 /// *input*      : `&str`
 ///
-/// *output*     : -
+/// *output*     : ()
 ///
 /// *initiator*  : fn `utils::run_daemons`
 ///
@@ -177,7 +177,7 @@ pub async fn unfreeze_process(name: &str) {
 /// 
 /// *input*      : `&str`, &str
 ///
-/// *output*     : -
+/// *output*     : ()
 ///
 /// *initiator*  : fn `utils::run_daemons`
 ///
@@ -196,7 +196,7 @@ pub async fn restart_process(name: &str, path: &str) -> Result<(), CustomError>
 /// 
 /// *input*      : `&str`, &str
 ///
-/// *output*     : -
+/// *output*     : ()
 ///
 /// *initiator*  : fn `restart_process`
 ///
diff --git a/src/utils/services.rs b/src/utils/services.rs
index 234be50..d89ee6b 100644
--- a/src/utils/services.rs
+++ b/src/utils/services.rs
@@ -6,6 +6,19 @@ use std::sync::Arc;
 use tokio::sync::mpsc;
 use tokio::time::{Duration, Instant};
 
+/// # Fn `service_handler`
+/// ## function to realize mechanism of current process' dep services monitoring
+/// 
+/// *input*      : `&str`, `&Vec<Services>`, `Arc<mpsc::Sender<u8>>`
+///
+/// *output*     : ()
+///
+/// *initiator*  : fn `utils::running_handler`
+///
+/// *managing*   : process name, ref of vec of dep services, ref counter to managing channel writer
+///
+/// *depends on* : fn `check_service`, fn `utils::prcs::is_active`, fn `utils::prcs::is_frozen`, fn `looped_service_connecting`
+/// 
 pub async fn service_handler(
     name: &str,
     services: &Vec<Services>,
@@ -54,6 +67,19 @@ pub async fn service_handler(
     Ok(())
 }
 
+/// # Fn `looped_service_connecting`
+/// ## for service's state check in loop (with delay and restriction of attempts) 
+/// 
+/// *input*      : `&str`, `&Services`
+///
+/// *output*     : Ok(()) if service now available | Err(er) if still not
+///
+/// *initiator*  : fn `service_handler`
+///
+/// *managing*   : process name, current service struct
+///
+/// *depends on* : fn `check_service`
+/// 
 async fn looped_service_connecting(name: &str, serv: &Services) -> Result<(), CustomError> {
     if serv.triggers.wait == 0 {
         loop {
@@ -103,6 +129,19 @@ async fn looped_service_connecting(name: &str, serv: &Services) -> Result<(), Cu
     }
 }
 
+/// # Fn `check_service`
+/// ## for check current service's availiability 
+/// 
+/// *input*      : `&str`, `&u32`
+///
+/// *output*     : Ok(()) if service now available | Err(er) if still not
+///
+/// *initiator*  : fn `service_handler`, fn `looped_service_connecting`
+///
+/// *managing*   : hostname, port
+///
+/// *depends on* : -
+/// 
 // ! have to be rewritten
 // todo: rewrite use
 async fn check_service(hostname: &str, port: &u32) -> Result<(), CustomError> {