项目结构整理

Cargo.lock

@@ -1,378 +1,5 @@
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Cargo.toml

@@ -6,11 +6,4 @@ edition = "2018"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
-[dependencies]
-#ferris-says = "0.1.1"
-#rand = "0.7.3"
-#chrono = "0.4.11"
-image = "0.23.1"
-qrcode = "0.12.0"
-#leptess = "0.8.1"
-base64 = "0.12.0"
+[dependencies]

src/keygen/mod.rs → src/keygen_test/keygen/mod.rs

@@ -1,6 +1,7 @@
 mod snowflake_keygen;
 
 // 也可以 pub use XXX 直接导出更内层的对象或方法
+// self 是当前模块所在项目层级，supper 是上一级，包括单文件模块上一级即相同目录的mod.rs，crate 是引用的包，实际是从项目入口即src目录开始
 use self::snowflake_keygen::SnowflakeKeygen;
 
 pub fn next_id() -> u64 {

src/keygen/snowflake_keygen.rs → src/keygen_test/keygen/snowflake_keygen.rs

@@ -1,7 +1,7 @@
 use std::{thread, time};
 use std::sync::RwLock;
 use chrono::prelude::*;
-use crate::keygen::IProgramKeygen;
+use super::IProgramKeygen;
 
 // 时间单位，一纳秒的多少倍，1e6 = 一毫秒，1e7 = 百分之一秒，1e8 = 十分之一秒
 const SNOWFLAKE_TIME_UNIT: i64 = (1e7 as i64);

src/keygen_test/mod.rs

@@ -0,0 +1,73 @@
+// [dependencies]
+// chrono = "0.4.11"
+
+mod keygen;
+
+use std::thread;
+use std::sync::mpsc;
+use std::collections::HashMap;
+use chrono::prelude::*;
+
+pub fn test() {
+    let id = keygen::next_id();
+    println!("key from keygen:{}", id);
+    println!();
+    test_next_id();
+}
+
+fn test_next_id() {
+    let id_size = 100000;
+
+    let start_time = Utc::now().timestamp_nanos();
+    let (tx, rx) = mpsc::channel();
+
+
+    for _ in 0..id_size {
+        let tx = tx.clone();
+        thread::spawn(move || {
+            let id = keygen::next_id();
+            tx.send(id).unwrap()
+        });
+    };
+
+    let (tx2, rx2) = mpsc::channel();
+    let tx2 = tx2.clone();
+    let handle = thread::spawn(move || {
+        let mut m: HashMap<u64, i32> = HashMap::new();
+        let mut i = id_size;
+        loop {
+            let id = rx.recv().unwrap();
+            //let mut wrap = wrap.lock().unwrap();
+            if m.contains_key(&id) {
+                let v = *(m.get_mut(&id).unwrap());
+                m.insert(id, v + 1);
+            } else {
+                m.insert(id, 1);
+            }
+            i -= 1;
+            if i == 0 {
+                break;
+            }
+        }
+        tx2.send(m).unwrap();
+    });
+
+    handle.join().expect("The thread being joined has panicked");
+
+    let m = rx2.recv().unwrap();
+
+    let end_time = Utc::now().timestamp_nanos();
+    let used_time = end_time - start_time;
+    println!("Id size: {}\nTotal seconds:{}\nAvg nanos per id:{}", m.len(), used_time / 1000000000, (used_time as i64) / (id_size as i64));
+
+    let mut bad_size = 0;
+    for (_, v) in m.iter() {
+        if *v > 1 {
+            bad_size += 1;
+        }
+    }
+
+    if bad_size > 0 {
+        println!("Not good")
+    }
+}

src/main.rs

@@ -2,151 +2,16 @@
 // 库的入口文件统一命名为lib.rs
 
 // 引用模块
-// mod test;
-// mod keygen;
+// mod random_test;
+// mod keygen_test;
+// mod qr_code_test;
 
 // 将其他模块的成员声明为当前模块直接可用的，等同于java的静态引用
 // 若省略这句，下面不可以直接使用Random结构体，而需要加上模块名，即test::Random
-// use self::test::Random;
-//
-// use std::thread;
-// use std::sync::mpsc;
-// use std::collections::HashMap;
-// use chrono::prelude::*;
-//
-// use std::io::{stdout, BufWriter};
-// use ferris_says::say;
+// use self::random_test::{test, Random};
 
 fn main() {
-    // let stdout = stdout();
-    // let out = b"Hello fellow Rustaceans!";
-    // let width = 24;
-    //
-    // let mut writer = BufWriter::new(stdout.lock());
-    // say(out, width, &mut writer).unwrap(); // unwrap为rust预定义错误处理模式，正常时返回OK值，错误时panic！
-    //
-    // let rd = Random { seed: 100 };
-    // println!("a random number:{}", rd.next());
-    // let id = keygen::next_id();
-    // println!("key from keygen:{}", id);
-    // println!();
-    // test_next_id();
-
-    // QRCode
-    let arr_first = [
-        '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
-        'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
-        'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'
-    ];
-    let arr_domain = [
-        '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '.', '-',
-        'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
-        'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'
-    ];
-    for size in 2..47 { // 英文域名长度2到46个字符
-        for c in arr_first.iter() {
-            walk(format!("{}", c).as_str(), size - 1, &arr_domain)
-        }
-    }
-
-    // OCR
-    // let mut lt = leptess::LepTess::new(None, "chi_sim").unwrap();
-    // lt.set_image("./tmp/qrcode.png");
-    // println!("OCR result:{}", lt.get_utf8_text().unwrap());
-}
-
-fn walk(s: &str, level: i32, arr: &[char]) {
-    for c in arr.iter() {
-        let new_s = format!("{}{}", s, c);
-        if level == 0 {
-            let data_http = format!("http://{}.com", new_s);
-            qr_code_gen(data_http.as_str());
-
-            let data_https = format!("https://{}.com", new_s);
-            qr_code_gen(data_https.as_str());
-        } else {
-            walk(new_s.as_str(), level - 1, arr)
-        }
-    }
-}
-
-fn qr_code_gen(data: &str) {
-    //println!("QR code for {}", data);
-
-    let out_path = "./tmp";
-    let name = base64::encode(data);
-
-    let code_m = qrcode::QrCode::new(data).unwrap();
-    let image_m = code_m.render::<image::Luma<u8>>().build();
-    image_m.save(format!("{}/{}_M.png", out_path, name)).unwrap();
-
-    let code_l = qrcode::QrCode::with_error_correction_level(data, qrcode::EcLevel::L).unwrap();
-    let image_l = code_l.render::<image::Luma<u8>>().build();
-    image_l.save(format!("{}/{}_L.png", out_path, name)).unwrap();
-
-    let code_q = qrcode::QrCode::with_error_correction_level(data, qrcode::EcLevel::Q).unwrap();
-    let image_q = code_q.render::<image::Luma<u8>>().build();
-    image_q.save(format!("{}/{}_Q.png", out_path, name)).unwrap();
-
-    let code_h = qrcode::QrCode::with_error_correction_level(data, qrcode::EcLevel::H).unwrap();
-    let image_h = code_h.render::<image::Luma<u8>>().build();
-    image_h.save(format!("{}/{}_H.png", out_path, name)).unwrap();
+    // random_test::test();
+    // keygen_test::test();
+    // qr_code_test::test(2, 3);
 }
-
-// fn test_next_id() {
-//     let id_size = 100000;
-//
-//     let start_time = Utc::now().timestamp_nanos();
-//     let (tx, rx) = mpsc::channel();
-//
-//
-//     for _ in 0..id_size {
-//         let tx = tx.clone();
-//         thread::spawn(move || {
-//             let id = keygen::next_id();
-//             tx.send(id).unwrap()
-//         });
-//     };
-//
-//     let (tx2, rx2) = mpsc::channel();
-//     let tx2 = tx2.clone();
-//     let handle = thread::spawn(move || {
-//         let mut m: HashMap<u64, i32> = HashMap::new();
-//         let mut i = id_size;
-//         loop {
-//             let id = rx.recv().unwrap();
-//             //let mut wrap = wrap.lock().unwrap();
-//             if m.contains_key(&id) {
-//                 let v = *(m.get_mut(&id).unwrap());
-//                 m.insert(id, v + 1);
-//             } else {
-//                 m.insert(id, 1);
-//             }
-//             i -= 1;
-//             if i == 0 {
-//                 break;
-//             }
-//         }
-//         tx2.send(m).unwrap();
-//     });
-//
-//     handle.join().expect("The thread being joined has panicked");
-//
-//     let m = rx2.recv().unwrap();
-//
-//     let end_time = Utc::now().timestamp_nanos();
-//     let used_time = end_time - start_time;
-//     println!("Id size: {}\nTotal seconds:{}\nAvg nanos per id:{}", m.len(), used_time / 1000000000, (used_time as i64) / (id_size as i64));
-//
-//     let mut bad_size = 0;
-//     for (_, v) in m.iter() {
-//         if *v > 1 {
-//             bad_size += 1;
-//         }
-//     }
-//
-//     if bad_size > 0 {
-//         println!("Not good")
-//     }
-// }
-

src/qr_code_test/mod.rs

@@ -0,0 +1,69 @@
+// [dependencies]
+// image = "0.23.1"
+// qrcode = "0.12.0"
+// base64 = "0.12.0"
+// leptess = "0.8.1" # for OCR
+
+use qrcode::{QrCode, EcLevel};
+
+pub fn test(min: i32, max: i32) {
+    // QRCode
+    let arr_first = [
+        '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
+        'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
+        'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'
+    ];
+    let arr_domain = [
+        '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '.', '-',
+        'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
+        'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'
+    ];
+    for size in min..max { // 如英文域名长度2到46个字符，则min=2，max=47
+        for c in arr_first.iter() {
+            walk(format!("{}", c).as_str(), size - 1, &arr_domain)
+        }
+    }
+
+    // OCR
+    // let mut lt = leptess::LepTess::new(None, "chi_sim").unwrap();
+    // lt.set_image("./tmp/qrcode.png");
+    // println!("OCR result:{}", lt.get_utf8_text().unwrap());
+}
+
+fn walk(s: &str, level: i32, arr: &[char]) {
+    for c in arr.iter() {
+        let new_s = format!("{}{}", s, c);
+        if level == 0 {
+            let data_http = format!("http://{}.com", new_s);
+            qr_code_gen(data_http.as_str());
+
+            let data_https = format!("https://{}.com", new_s);
+            qr_code_gen(data_https.as_str());
+        } else {
+            walk(new_s.as_str(), level - 1, arr)
+        }
+    }
+}
+
+pub fn qr_code_gen(data: &str) {
+    println!("QR code for {}", data);
+
+    let out_path = "./tmp";
+    let name = base64::encode(data);
+
+    let code_m = QrCode::new(data).unwrap();
+    let image_m = code_m.render::<image::Luma<u8>>().build();
+    image_m.save(format!("{}/{}_M.png", out_path, name)).unwrap();
+
+    let code_l = QrCode::with_error_correction_level(data, EcLevel::L).unwrap();
+    let image_l = code_l.render::<image::Luma<u8>>().build();
+    image_l.save(format!("{}/{}_L.png", out_path, name)).unwrap();
+
+    let code_q = QrCode::with_error_correction_level(data, EcLevel::Q).unwrap();
+    let image_q = code_q.render::<image::Luma<u8>>().build();
+    image_q.save(format!("{}/{}_Q.png", out_path, name)).unwrap();
+
+    let code_h = QrCode::with_error_correction_level(data, EcLevel::H).unwrap();
+    let image_h = code_h.render::<image::Luma<u8>>().build();
+    image_h.save(format!("{}/{}_H.png", out_path, name)).unwrap();
+}

src/test/mod.rs → src/random_test/mod.rs

@@ -1,7 +1,16 @@
 // 一个模块（子目录）下的入口文件，统一命名为mod.rs，模块下的其他文件需要公开的，在mod.rs中统一导出
+// 或者模块仅有单文件，则可以不用子目录而直接用单个文件作为一个模块，如random_test.rs
+
+// [dependencies]
+// rand = "0.7.3"
 
 use rand::prelude::*;
 
+pub fn test() {
+    let rd = Random { seed: 100 };
+    println!("a random number:{}", rd.next());
+}
+
 // 声明一个结构体
 pub struct Random {
     pub seed: i32 // 成员变量