Add two bins using crate cron_tab.

src/bin/using-crate-cron_tab-async.rs

@@ -0,0 +1,36 @@
+use std::sync::Arc;
+
+use chrono::{FixedOffset, Local, TimeZone};
+use cron_tab::AsyncCron;
+use tokio::sync::Mutex;
+
+#[tokio::main]
+async fn main() {
+    let local_tz = Local::from_offset(&FixedOffset::east(7));
+    let mut cron = AsyncCron::new(local_tz);
+
+    let first_job_id = cron.add_fn("* * * * * *", print_now).await;
+
+    cron.start().await;
+
+    let counter = Arc::new(Mutex::new(1));
+    cron.add_fn("* * * * * *", move || {
+        let counter = counter.clone();
+        async move {
+            let mut counter = counter.lock().await;
+            *counter += 1;
+            let now = Local::now().to_string();
+            println!("{} counter value: {}", now, counter);
+        }
+    })
+    .await;
+
+    std::thread::sleep(std::time::Duration::from_secs(10));
+
+    // stop cron
+    cron.stop();
+}
+
+async fn print_now() {
+    println!("now: {}", Local::now().to_string());
+}

src/bin/using-crate-cron_tab-sync.rs

@@ -0,0 +1,29 @@
+use chrono::{FixedOffset, Local, TimeZone};
+use cron_tab;
+
+fn main() {
+    let local_tz = Local::from_offset(&FixedOffset::east(7));
+    let mut cron = cron_tab::Cron::new(local_tz);
+
+    let first_job_id = cron.add_fn("* * * * * * *", print_now).unwrap();
+
+    // start cron in background
+    cron.start();
+
+    cron.add_fn("* * * * * *", move || {
+        println!("add_fn {}", Local::now().to_string());
+    })
+    .unwrap();
+
+    // remove job_test
+    cron.remove(first_job_id);
+
+    std::thread::sleep(std::time::Duration::from_secs(10));
+
+    // stop cron
+    cron.stop();
+}
+
+fn print_now() {
+    println!("now: {}", Local::now().to_string());
+}