docs: utils

src/utils.rs

@@ -22,9 +22,21 @@ use tokio::time::Duration;
 
 const GET_ID_CMD: &str = "hostname";
 
-/// # async func to run 3 main daemons (now it's more like tree-form than classical 0.1.0 form )
-/// > hint : give mpsc with capacity 1 to jump over potential errors during running process
-/// > ** in [developing](https://github.com/prplV/runner-rs "REPOSITORY") **
+/// # Fn `run_daemons`
+/// ## async func to run 3 main daemons: process, service and file monitors and manage process state according to given messages into channel 
+/// 
+/// *input*      : `Arc<TrackingProcess>`, `Arc<mpsc::Sender<u8>>`, `&mut mpsc::Receiver<u8>`,
+///
+/// *output*     : ()
+///
+/// *initiator*  : main thread
+///
+/// *managing*   : Arc to current process struct, Arc to managing channel writer, mut ref to managing channel reader
+///
+/// *depends on* : all module `prcs`'s functions, fn `running_handler`, fn `utils::files::create_watcher`
+/// 
+/// > *hint* : give mpsc with capacity 1 to jump over potential errors during running process
+///
 pub async fn run_daemons(
     proc: Arc<TrackingProcess>,
     tx: Arc<mpsc::Sender<u8>>,
@@ -167,6 +179,19 @@ pub async fn run_daemons(
     tokio::task::yield_now().await;
 }
 // check process status daemon
+/// # Fn `run_daemons`
+/// ## func to async exec subjobs of checking process, services and files states
+/// 
+/// *input*      : `Arc<TrackingProcess>`, `Arc<mpsc::Sender<u8>>`, `Arc<tokio::sync::Mutex<Vec<Inotify>>>`
+///
+/// *output*     : ()
+///
+/// *initiator*  : fn `run_daemons`
+///
+/// *managing*   : Arc to current process struct, Arc to Mutex to list of file watchers
+///
+/// *depends on* : fn `utils::files::file_handler`, fn `utils::services::service_handler`, fn `utils::prcs::{is_active, is_frozen, start_process}`
+/// 
 pub async fn running_handler(
     prc: Arc<TrackingProcess>,
     tx: Arc<mpsc::Sender<u8>>,
@@ -199,6 +224,19 @@ pub async fn running_handler(
 }
 
 // todo: cmd across cat /proc/self/mountinfo | grep "/docker/containers/" | head -1 | awk -F '/' '{print $5}'
+/// # Fn `get_container_id`
+/// ## for getting container id used in logs
+/// 
+/// *input*      : -
+///
+/// *output*     : Some(String) if cont-id was grubbed | None - if not  
+///
+/// *initiator*  : fn `options::logger::setup_logger`
+///
+/// *managing*   : -
+///
+/// *depends on* : -
+/// 
 pub fn get_container_id() -> Option<String> {
     match Command::new(GET_ID_CMD).output() {
         Ok(output) => {

src/utils/metrics.rs

@@ -14,18 +14,18 @@ use crate::utils::get_container_id;
 
 // type PacketBuffer = Arc<Mutex<Vec<PacketInfo>>>;
 
-/// # Fn init_metrics_grubber
+/// # Fn `init_metrics_grubber`
 /// ## for initializing process of unstoppable grubbing metrics.
 /// 
-/// *input*      : `Result<()>`
+/// *input*      : `Arc<Mutex<UnixSocket>>` ??
 ///
 /// *output*     : `Err` if it cant create grubbers | `Ok` on finish
 ///
-/// *initiator*  : main thread
+/// *initiator*  : main thread ?? 
 ///
 /// *managing*   : object of unix-socket reader 
 ///
-/// *depends on* : network activity  
+/// *depends on* : -  
 /// 
 pub async fn init_metrics_grubber() { 
     let mut system = System::new();
@@ -79,8 +79,19 @@ async fn gather_metrics(proc: Arc<Process>) {
 // }
 
 
-// !!!
-// for container (whole system metrics)
+/// # Fn `get_all_container_metrics`
+/// ## for gathering all container (whole system metrics)
+/// 
+/// *input*      : `Arc<System>`, `Arc<Vec<TrackingProcess>>`
+///
+/// *output*     : `ContainerMetrics`
+///
+/// *initiator*  : main thread ?? 
+///
+/// *managing*   : ref counter to `System` object, ref counter to list of processes
+///
+/// *depends on* : `TrackingProcess`
+/// 
 async fn get_all_container_metrics(sys: Arc<System>, prcs: Arc<Vec<TrackingProcess>>) -> ContainerMetrics {
     let metrics = join!(
         get_cpu_metrics_container(sys.clone()),
@@ -94,22 +105,74 @@ async fn get_all_container_metrics(sys: Arc<System>, prcs: Arc<Vec<TrackingProce
         metrics.2
     )
 }
+
+/// # Fn `get_cpu_metrics_container`
+/// ## for gathering container cpu metrics
+/// 
+/// *input*      : `Arc<System>`
+///
+/// *output*     : `f32`
+///
+/// *initiator*  : main thread ?? 
+///
+/// *managing*   : ref counter to `System` object
+///
+/// *depends on* : -  
+/// 
 async fn get_cpu_metrics_container(sys: Arc<System>) -> f32 {
     sys.global_cpu_usage()
 }
+
+/// # Fn `get_ram_metrics_container`
+/// ## for gathering container ram metrics
+/// 
+/// *input*      : `Arc<System>`
+///
+/// *output*     : `f32`
+///
+/// *initiator*  : main thread ?? 
+///
+/// *managing*   : ref counter to `System` object
+///
+/// *depends on* : -  
+/// 
 async fn get_ram_metrics_container(sys: Arc<System>) -> f32 {
     (sys.used_memory() / sys.total_memory()) as f32 * 100.0 
 }
 // async fn get_mem_metrics_container(sys: Arc<System>) -> f32 {
 //     sys.
 // }
+
+/// # Fn `get_subsystems`
+/// ## for gathering info about container subsystems (processes)
+/// 
+/// *input*      : `Arc<Vec<TrackingProcess>>`
+///
+/// *output*     : `Vec<String>`
+///
+/// *initiator*  : main thread ?? 
+///
+/// *managing*   : ref counter to list of `TrackingProcess`
+///
+/// *depends on* : `TrackingProcess`  
+/// 
 async fn get_subsystems(prcs: Arc<Vec<TrackingProcess>>) -> Vec<String> {
     prcs.iter().map(|process| process.name.clone()).collect()
 }
 
-// !!!
-// for process (process metrics)
-// %
+/// # Fn `get_all_metrics_process`
+/// ## for gathering all process' metrics
+/// 
+/// *input*      : `Arc<Process>`, `Arc<System>`
+///
+/// *output*     : `ProcessMetrics`
+///
+/// *initiator*  : main thread ?? 
+///
+/// *managing*   : two ref counters to `Process` and `System`
+///
+/// *depends on* : -
+/// 
 async fn get_all_metrics_process(proc: Arc<Process>, sys: Arc<System>) -> ProcessMetrics {
     let metrics = join!(
         get_cpu_metrics_process(proc.clone()),
@@ -121,10 +184,37 @@ async fn get_all_metrics_process(proc: Arc<Process>, sys: Arc<System>) -> Proces
         metrics.1
     )
 }
+
+/// # Fn `get_cpu_metrics_process`
+/// ## for gathering process cpu metrics
+/// 
+/// *input*      : `Arc<Process>`
+///
+/// *output*     : `f32`
+///
+/// *initiator*  : main thread ?? 
+///
+/// *managing*   : ref counter to `Process` object
+///
+/// *depends on* : -  
+/// 
 async fn get_cpu_metrics_process(proc: Arc<Process>) -> f32 {
     proc.cpu_usage()
 }
-// %
+
+/// # Fn `get_ram_metrics_process`
+/// ## for gathering process ram metrics
+/// 
+/// *input*      : `Arc<Process>`
+///
+/// *output*     : `f32`
+///
+/// *initiator*  : main thread ?? 
+///
+/// *managing*   : ref counter to `Process` object
+///
+/// *depends on* : -  
+/// 
 async fn get_ram_metrics_process(proc: Arc<Process>, sys: Arc<System>) -> f32 {
     (proc.memory() as f64 / sys.total_memory() as f64) as f32 * 100.0 as f32
 }

src/utils/prcs.rs

@@ -1,10 +1,22 @@
 use crate::options::structs::CustomError;
 use log::{error, warn};
-use std::io;
 use std::process::{Command, Output};
 use std::sync::Arc;
 use tokio::time::Duration;
 
+/// # Fn `get_pid`
+/// ## for initializing process of unstoppable grubbing metrics.
+/// 
+/// *input*      : `&str`
+///
+/// *output*     : `None` if cant get process PID | `Some(Output)` on success
+///
+/// *initiator*  : fn `is_frozen`, fn `utils::files::file_handler`, fn `utils::files::service_handler`
+///
+/// *managing*   : process name
+///
+/// *depends on* : - 
+/// 
 pub async fn get_pid(name: &str) -> Option<Output> {
     let name = Arc::new(name.to_string());
     let res =
@@ -20,8 +32,20 @@ pub async fn get_pid(name: &str) -> Option<Output> {
         None
     }
 }
-// ! can be with bug !!!
-// * APPROVED
+
+/// # Fn `is_active`
+/// ## for checking process's activity state
+/// 
+/// *input*      : `&str`
+///
+/// *output*     : `true` if process running | `false` if not
+///
+/// *initiator*  : fn `utils::files::file_handler`, fn `utils::files::service_handler`
+///
+/// *managing*   : process name
+///
+/// *depends on* : - 
+/// 
 pub async fn is_active(name: &str) -> bool {
     let arc_name = Arc::new(name.to_string());
     tokio::task::spawn_blocking(move || {
@@ -38,7 +62,19 @@ pub async fn is_active(name: &str) -> bool {
     .unwrap()
 }
 
-// T is for stopped processes
+/// # Fn `is_frozen`
+/// ## for checking process's hibernation state
+/// 
+/// *input*      : `&str`
+///
+/// *output*     : `true` if process is frozen | `false` if not
+///
+/// *initiator*  : fn `utils::files::file_handler`, fn `utils::files::service_handler`
+///
+/// *managing*   : process name
+///
+/// *depends on* : fn `get_pid`
+/// 
 pub async fn is_frozen(name: &str) -> bool {
     let temp: Output;
     if let Some(output) = get_pid(name).await {
@@ -66,6 +102,20 @@ pub async fn is_frozen(name: &str) -> bool {
         .unwrap()
     }
 }
+
+/// # Fn `terminate_process`
+/// ## for stop current process
+/// 
+/// *input*      : `&str`
+///
+/// *output*     : ()
+///
+/// *initiator*  : fn `utils::files::file_handler`, fn `utils::files::service_handler`, fn `utils::run_daemons`
+///
+/// *managing*   : process name
+///
+/// *depends on* : -
+/// 
 pub async fn terminate_process(name: &str) {
     let _ = Command::new("pkill")
         .arg(name)
@@ -76,6 +126,19 @@ pub async fn terminate_process(name: &str) {
         });
 }
 
+/// # Fn `terminate_process`
+/// ## for freeze/hibernate current process
+/// 
+/// *input*      : `&str`
+///
+/// *output*     : ()
+///
+/// *initiator*  : fn `utils::run_daemons`
+///
+/// *managing*   : process name
+///
+/// *depends on* : -
+/// 
 pub async fn freeze_process(name: &str) {
     let _ = Command::new("pkill")
         .args(["-STOP", name])
@@ -85,6 +148,20 @@ pub async fn freeze_process(name: &str) {
             std::process::exit(101);
         });
 }
+
+/// # Fn `unfreeze_process`
+/// ## for unfreeze/hibernate current process
+/// 
+/// *input*      : `&str`
+///
+/// *output*     : ()
+///
+/// *initiator*  : fn `utils::run_daemons`
+///
+/// *managing*   : process name
+///
+/// *depends on* : -
+/// 
 pub async fn unfreeze_process(name: &str) {
     let _ = Command::new("pkill")
         .args(["-CONT", name])
@@ -94,12 +171,39 @@ pub async fn unfreeze_process(name: &str) {
             std::process::exit(101);
         });
 }
+
+/// # Fn `restart_process`
+/// ## for restarting current process
+/// 
+/// *input*      : `&str`, &str
+///
+/// *output*     : ()
+///
+/// *initiator*  : fn `utils::run_daemons`
+///
+/// *managing*   : process name and path to its exec file
+///
+/// *depends on* : fn `start_process`, fn `terminate_process`
+/// 
 pub async fn restart_process(name: &str, path: &str) -> Result<(), CustomError> {
     terminate_process(name).await;
     tokio::time::sleep(Duration::from_millis(100)).await;
     start_process(name, path).await
 }
 
+/// # Fn `start_process`
+/// ## for starting current process
+/// 
+/// *input*      : `&str`, &str
+///
+/// *output*     : ()
+///
+/// *initiator*  : fn `restart_process`
+///
+/// *managing*   : process name and path to its exec file
+///
+/// *depends on* : -
+/// 
 pub async fn start_process(name: &str, path: &str) -> Result<(), CustomError> {
     // let runsh = format!("{} {}", "exec", path);
     let mut command = Command::new(path);

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> {