關(guān)于使用rust調(diào)用c++靜態(tài)庫(kù)并編譯nodejs包的問(wèn)題
更新時(shí)間：2022年08月02日 14:39:03 作者：天邊行云
這篇文章主要介紹了使用rust調(diào)用c++靜態(tài)庫(kù)并編譯nodejs包的問(wèn)題，本文通過(guò)實(shí)例代碼給大家介紹的非常詳細(xì)，對(duì)大家的學(xué)習(xí)或工作具有一定的參考借鑒價(jià)值,需要的朋友可以參考下
在項(xiàng)目上經(jīng)常要用到身份證閱讀器、護(hù)照閱讀儀、指紋儀等各種品牌硬件，假如每套系統(tǒng)的都做集成開(kāi)發(fā)那代碼的維護(hù)成本將變得很高，為此采用rust來(lái)調(diào)用廠家提供的sdk c++開(kāi)發(fā)包并封裝成nodejs包，用fastify來(lái)開(kāi)發(fā)成web api獨(dú)立的服務(wù)形式。這樣我們開(kāi)發(fā)系統(tǒng)時(shí)只需調(diào)用web接口即可，跨平臺(tái)又可共用，方便快捷，話不多說(shuō)來(lái)看代碼如何實(shí)現(xiàn)。
一、創(chuàng)建項(xiàng)目
安裝rust后，打開(kāi)vs新建一個(gè)工程目錄，我們通過(guò)cargo new創(chuàng)建的一個(gè)package項(xiàng)目，加上--lib參數(shù)后創(chuàng)建的項(xiàng)目就是庫(kù)項(xiàng)目（library package）。cargo new --lib reader
package 就是一個(gè)項(xiàng)目，因此它包含有獨(dú)立的 Cargo.toml 文件，用于項(xiàng)目配置。庫(kù)項(xiàng)目只能作為三方庫(kù)被其它項(xiàng)目引用，而不能獨(dú)立運(yùn)行，即src/lib.rs。
典型的package
如果一個(gè) package 同時(shí)擁有 src/main.rs 和 src/lib.rs，那就意味著它包含兩個(gè)包：庫(kù)包和二進(jìn)制包，這兩個(gè)包名也都是 test_math —— 都與 package 同名。
一個(gè)真實(shí)項(xiàng)目中典型的 package，會(huì)包含多個(gè)二進(jìn)制包，這些包文件被放在 src/bin 目錄下，每一個(gè)文件都是獨(dú)立的二進(jìn)制包，同時(shí)也會(huì)包含一個(gè)庫(kù)包，該包只能存在一個(gè) src/lib.rs：
.
├── Cargo.toml
├── Cargo.lock
├── src
│ ├── main.rs
│ ├── lib.rs
│ └── bin
│ └── main1.rs
│ └── main2.rs
├── tests
│ └── some_integration_tests.rs
├── benches
│ └── simple_bench.rs
└── examples
└── simple_example.rs
唯一庫(kù)包：src/lib.rs
默認(rèn)二進(jìn)制包：src/main.rs，編譯后生成的可執(zhí)行文件與package同名
其余二進(jìn)制包：src/bin/main1.rs 和 src/bin/main2.rs，它們會(huì)分別生成一個(gè)文件同名的二進(jìn)制可執(zhí)行文件
集成測(cè)試文件：tests 目錄下
性能測(cè)試benchmark文件：benches 目錄下
項(xiàng)目示例：examples 目錄下
這種目錄結(jié)構(gòu)基本上是 Rust 的標(biāo)準(zhǔn)目錄結(jié)構(gòu)，在 github 的大多數(shù)項(xiàng)目上，你都將看到它的身影。
運(yùn)行Cargo build命令，我們?cè)趖arget\debug目錄下可以看到編譯后的結(jié)果。
二、Cargo.toml
[package]
name = "reader"
version = "0.1.0"
edition = "2018"
exclude = ["reader.node"]
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
libc = "0.2.9"
libloading = "0.7"
once_cell = "1.8"
serde = { version = "1.0", features = ["derive"] }
widestring = "0.5.1"
serde_json = "1.0"
base64 = "0.13"
hex="0.4.2"
encoding = "0.2"
tokio={version="1.18.0",features = ["full"]}
[dependencies.neon]
version = "0.9"
default-features = false
features = ["napi-5", "channel-api"]
[lib]
crate-type = ["cdylib"]三、package.json
{
"name": "reader",
"version": "0.1.0",
"description": "",
"main": "index.node",
"scripts": {
"build": "cargo-cp-artifact -nc index.node -- cargo build --message-format=json-render-diagnostics",
"build-debug": "npm run build --",
"build-release": "npm run build -- --release",
"build_win32": "npm run build -- --release --target=i686-pc-windows-msvc",
"test": "cargo test",
"run": "cargo run"
},
"author": "",
"license": "ISC",
"devDependencies": {
"cargo-cp-artifact": "^0.1"
},
"dependencies": {
"express": "^4.17.3"
}
}我們可以打印rust看看編譯輸出支持哪些架構(gòu)
rustc --print target-list
//添加 x86編譯鏈接器
rustup target add i686-pc-windows-msvc
四、代碼分析
use std::collections::HashMap;
use std::str;
use std::fmt::Write;
use std::io::{Error};
extern crate encoding;
use encoding::all::GB18030;
use encoding::{DecoderTrap,EncoderTrap,Encoding};
use tokio::time::{sleep, Duration,Instant};
use libc::{c_int, c_void};
use libloading::{Library, Symbol};
use neon::prelude::*;
use once_cell::sync::OnceCell;
use serde::{Deserialize, Serialize};
use widestring::{WideCStr, WideCString, WideChar};
// 編碼轉(zhuǎn)換 utf8 -> utf16le
fn encode(source: &str) -> WideCString {
let string_source = source.to_string() + "\0";
WideCString::from_str(&string_source).unwrap()
}
// 解碼轉(zhuǎn)換 utf16le -> utf8
fn decode(source: &[WideChar]) -> String {
WideCStr::from_slice_truncate(source)
.unwrap()
.to_string()
.unwrap()
}
// 加載 dll
static LIBRARY: OnceCell<Library> = OnceCell::new();
//指定編譯架構(gòu)
static MACHINE_KIND: &str = if cfg!(target_os = "windows") {
if cfg!(target_arch = "x86") {
"win32"
} else if cfg!(target_arch = "x86_x64") {
"win64"
} else {
"other"
}
} else if cfg!(target_os = "linux") {
if cfg!(target_arch = "x86") {
"linux32"
} else if cfg!(target_arch = "x86_64") {
"linux64"
} else if cfg!(target_arch = "aarch64") {
"aarch64"
} else if cfg!(target_arch = "arm") {
"arm"
} else {
"other"
}
} else {
"other"
};
//定義函數(shù)方法名，這里要根據(jù)c++庫(kù)的函數(shù)名和參數(shù)來(lái)定義，函數(shù)名和參數(shù)類(lèi)型務(wù)必要一致。
type LPCTSTR = *const WideChar;
type BOOL = c_int;
type INITPTR = *const i8;
type CANRST = *mut WideChar;
// 打開(kāi)設(shè)備
type S2V7_open = unsafe extern "system" fn() -> c_int;
// 關(guān)閉設(shè)備
type S2V7_close = unsafe extern "system" fn() -> c_int;
//【set mode 設(shè)置讀證功能】
type S2V7_set_mode =
unsafe extern "system" fn(flg_takeColor: c_int, flg_takeUV: c_int, flg_readChipInfo: c_int, flg_readChipFace: c_int) -> c_int; // Type = 0 即可
//【wait Doc. in 等待放卡】
type S2V7_wait_DocIn =
unsafe extern "system" fn(timeout: f64, flg_in: INITPTR) -> c_int; // Type = 0 即可
//【wait Doc. out 等待拿卡】
type S2V7_wait_DocOut =
unsafe extern "system" fn(timeout: f64, flg_out: INITPTR) -> c_int; // Type = 0 即可
//【process 執(zhí)行讀卡過(guò)程】
type S2V7_process = unsafe extern "system" fn() -> c_int;
//讀取卡類(lèi)型
type S2V7_get_cardType = unsafe extern "system" fn() -> c_int;
//保存彩照
type S2V7_VIS_saveColor = unsafe extern "system" fn(imgPath: LPCTSTR) -> c_int;
//保存紅外照
type S2V7_VIS_saveIR = unsafe extern "system" fn(imgPath: LPCTSTR) -> c_int;
//【get MRZ text 獲取OCR文字信息】
type S2V7_VIS_getMRZtext = unsafe extern "system" fn(text: LPCTSTR) -> c_int;
//show text information 文字信息
type S2V7_RDO_getBytesByIndex = unsafe extern "system" fn(index: c_int,data: LPCTSTR) -> c_int;
type S2V7_VIS_getBytesByIndex = unsafe extern "system" fn(index: c_int,data: LPCTSTR) -> c_int;
type S2V7_RF_active = unsafe extern "system" fn(antenna: c_int,atr: LPCTSTR, atr_len: c_int) -> c_int;
//構(gòu)建函數(shù)實(shí)例
static V7_OPEN: OnceCell<Symbol<S2V7_open>> = OnceCell::new();
static V7_CLOSE: OnceCell<Symbol<S2V7_close>> = OnceCell::new();
static V7_SET_MODE: OnceCell<Symbol<S2V7_set_mode>> = OnceCell::new();
static V7_WAIT_DOCINT: OnceCell<Symbol<S2V7_wait_DocIn>> = OnceCell::new();
static V7_WAIT_DOCOUT: OnceCell<Symbol<S2V7_wait_DocOut>> = OnceCell::new();
static V7_PROCESS: OnceCell<Symbol<S2V7_process>> = OnceCell::new();
static V7_GET_CARDTYPE: OnceCell<Symbol<S2V7_get_cardType>> = OnceCell::new();
static V7_VIS_SAVECOLOR: OnceCell<Symbol<S2V7_VIS_saveColor>> = OnceCell::new();
static V7_VIS_SAVEIR: OnceCell<Symbol<S2V7_VIS_saveIR>> = OnceCell::new();
static V7_VIS_GETMRZTEXT: OnceCell<Symbol<S2V7_VIS_getMRZtext>> = OnceCell::new();
static V7_RDO_getBytesByIndex: OnceCell<Symbol<S2V7_RDO_getBytesByIndex>> = OnceCell::new();
static V7_VIS_getBytesByIndex: OnceCell<Symbol<S2V7_VIS_getBytesByIndex>> = OnceCell::new();
static V7_RF_active: OnceCell<Symbol<S2V7_RF_active>> = OnceCell::new();
// 對(duì)外導(dǎo)出函數(shù)方法
#[neon::main]
fn main(mut cx: ModuleContext) -> NeonResult<()> {
cx.export_function("init", init_by_node)?;
cx.export_function("start", start)?;
}
//加載dll并對(duì)函數(shù)進(jìn)行初始化操作
pub fn init_by_node(mut cx: FunctionContext) -> JsResult<JsNumber> {
//外部傳進(jìn)來(lái)的參數(shù)（根據(jù)自己的需要來(lái)定義）
let directory = cx.argument::<JsString>(0)?.value(&mut cx);
let userid = cx.argument::<JsString>(1)?.value(&mut cx);
unsafe {
DIRECTORY_PATH.take();
DIRECTORY_PATH.set(directory).unwrap();
USER_ID.take();
USER_ID.set(userid).unwrap();
};
let result = init() as f64;
Ok(cx.number(result))
}
//核心代碼，加載dll函數(shù)并映射
fn init() -> c_int {
let directory = unsafe { DIRECTORY_PATH.get().unwrap() };
let userid = unsafe { USER_ID.get().unwrap() };
let directory_path = std::path::Path::new(directory).join(MACHINE_KIND);
if directory_path.exists() {
let dll_path = directory_path.join(libloading::library_filename("STAR200_V7_DRV"));
println!("dll_path: {:?}", dll_path);
if dll_path.exists() {
match init_dll(dll_path.to_str().unwrap()).is_ok() {
true => {
// 打開(kāi)設(shè)備
let init_result = unsafe {V7_OPEN.get_unchecked()()};
if init_result == 0 {
println!("設(shè)備打開(kāi)成功");
return ResultType::Success as c_int;
} else {
println!("設(shè)備打開(kāi)失敗，代碼：{:?}",init_result);
return ResultType::DeviceNotFound as c_int;
}
}
false => {
return ResultType::INITDLLFail as c_int;
}
}
} else {
return ResultType::DllPathNotExist as c_int;
}
} else {
println!("{:?}", directory_path);
return ResultType::DirectoryPathNotExist as c_int;
}
}
// 加載dll
fn init_dll(dll_path: &str) -> Result<bool, Box<dyn std::error::Error>> {
unsafe {
if INITDLL {
return Ok(true);
}
}
println!("加載dll");
println!("dll_path");
let library = LIBRARY.get_or_init(|| unsafe { Library::new(dll_path).unwrap() });
println!("S2V7_open");
V7_OPEN.get_or_init(|| unsafe { library.get::<S2V7_open>(b"S2V7_open").unwrap() });
println!("S2V7_close");
V7_CLOSE.get_or_init(|| unsafe { library.get::<S2V7_close>(b"S2V7_close").unwrap() });
println!("S2V7_set_mode");
V7_SET_MODE.get_or_init(|| unsafe {library.get::<S2V7_set_mode>(b"S2V7_set_mode").unwrap()});
println!("S2V7_wait_DocIn");
V7_WAIT_DOCINT.get_or_init(|| unsafe { library.get::<S2V7_wait_DocIn>(b"S2V7_wait_DocIn").unwrap() });
println!("S2V7_wait_DocOut");
V7_WAIT_DOCOUT.get_or_init(|| unsafe { library.get::<S2V7_wait_DocOut>(b"S2V7_wait_DocOut").unwrap() });
V7_PROCESS.get_or_init(|| unsafe { library.get::<S2V7_process>(b"S2V7_process").unwrap() });
V7_GET_CARDTYPE.get_or_init(|| unsafe { library.get::<S2V7_get_cardType>(b"S2V7_get_cardType").unwrap() });
V7_VIS_SAVECOLOR.get_or_init(|| unsafe { library.get::<S2V7_VIS_saveColor>(b"S2V7_VIS_saveColor").unwrap() });
V7_VIS_SAVEIR.get_or_init(|| unsafe { library.get::<S2V7_VIS_saveIR>(b"S2V7_VIS_saveIR").unwrap() });
V7_VIS_GETMRZTEXT.get_or_init(|| unsafe { library.get::<S2V7_VIS_getMRZtext>(b"S2V7_VIS_getMRZtext").unwrap() });
V7_RDO_getBytesByIndex.get_or_init(|| unsafe { library.get::<S2V7_RDO_getBytesByIndex>(b"S2V7_RDO_getBytesByIndex").unwrap() });
V7_VIS_getBytesByIndex.get_or_init(|| unsafe { library.get::<S2V7_VIS_getBytesByIndex>(b"S2V7_VIS_getBytesByIndex").unwrap() });
V7_RF_active.get_or_init(|| unsafe { library.get::<S2V7_RF_active>(b"S2V7_RF_active").unwrap() });
unsafe {
INITDLL = true;
}
Ok(true)
}//創(chuàng)建新線程來(lái)監(jiān)測(cè)設(shè)備讀證操作
fn start(mut cx: FunctionContext) -> JsResult<JsUndefined> {
let callback = cx.argument::<JsFunction>(0)?.root(&mut cx);
let mut channel = cx.channel();
channel.reference(&mut cx);
println!("start {}", channel.has_ref());
let index = unsafe {
DEVICE_START_INDEX += 1;
DEVICE_START_INDEX
};
std::thread::spawn(move || {
// Do the heavy lifting inside the background thread.
device_start(callback, channel, index);
});
Ok(cx.undefined())
}
use std::sync::{Arc, Mutex};
fn device_start(callback: Root<JsFunction>, channel: Channel, index: u64) {
let index = index;
let callback = Arc::new(Mutex::new(callback));
//設(shè)置讀證功能
unsafe { V7_SET_MODE.get_unchecked()(1,1,1,1) };
loop {
if index != unsafe { DEVICE_START_INDEX } {
break;
};
let callback_clone = Arc::clone(&callback);
let mut result = RecogIDCardEXResult::default();
let mut flg_in:i8=0;
match unsafe { V7_WAIT_DOCINT.get_unchecked()(5.0,&mut flg_in) } {
// 設(shè)備正常 檢測(cè)是否有放入證件
0 => {
if flg_in==0{
//檢查是否放入超時(shí)
result.record_type = ResultType::CheckCardNotInOrOut as i32;
break;
}
result.device_online = true;
result.device_name =unsafe { DEVCIE_NAME.get_or_init(|| "".to_string()).to_string() };
match unsafe { V7_PROCESS.get_unchecked()() } {
// 證件有放入
0 => {
result.record_type = ResultType::CheckCardInput as i32;
}
// 未檢測(cè)到OCR區(qū)域
-1 => {
result.record_type = ResultType::OCRFail as i32;
}
// 設(shè)備離線
-3 => {
result.device_online = false;
result.record_type = init();
}
_ => {
result.record_type = ResultType::Unknown as i32;
}
}
}
-3 => {
//設(shè)備離線
let init = init();
result.device_online = false;
result.record_type = init;
}
_ => {
//未知錯(cuò)誤
result.record_type = ResultType::Unknown as i32;
}
};
if unsafe { *NEED_RECORD.get_or_init(|| false) } {
println!("手工點(diǎn)擊識(shí)別+1");
result.record_type = ResultType::CheckCardInput as i32;
}
// let time_now = std::time::Instant::now();
if result.record_type == ResultType::CheckCardInput as i32 {
let _result = recog_card();
result.success = _result.success;
result.img_base64 = _result.img_base64;
result.reg_info = _result.reg_info;
result.card_type = _result.card_type;
result.card_name = _result.card_name;
}
let neet_sendinfo = if Some(true) == unsafe { NEED_RECORD.take() } {
true
} else {
false
};
// let elapsed = time_now.elapsed();
// println!("識(shí)別時(shí)間結(jié)束時(shí)間 {:.6?}", elapsed);
if result.record_type != ResultType::CheckCardNotInOrOut as i32
&& (*unsafe { RESULT_TYPE.get_or_init(|| -10000) } != result.record_type
|| result.record_type == ResultType::CheckCardInput as i32
|| neet_sendinfo)
{
unsafe {
RESULT_TYPE.take();
RESULT_TYPE.set(result.record_type).unwrap();
}
channel.send(move |mut cx| {
let result_json = serde_json::to_string(&result).unwrap();
let callback = callback_clone.lock().unwrap().to_inner(&mut cx);
let this = cx.undefined();
let args = vec![cx.string(&result_json)];
callback.call(&mut cx, this, args)?;
Ok(())
});
}
std::thread::sleep(std::time::Duration::from_millis(20));
}
}完整源碼
use std::collections::HashMap;
use libc::{c_int, c_void};
use libloading::{Library, Symbol};
use neon::prelude::*;
use once_cell::sync::OnceCell;
use serde::Serialize;
extern crate encoding;
use encoding::all::GB18030;
use encoding::{DecoderTrap,EncoderTrap,Encoding};
use widestring::{WideCStr, WideCString, WideChar};
// 編碼轉(zhuǎn)換 utf8 -> utf16le
fn encode(source: &str) -> WideCString {
let string_source = source.to_string() + "\0";
WideCString::from_str(&string_source).unwrap()
}
// 解碼轉(zhuǎn)換 utf16le -> utf8
fn decode(source: &[WideChar]) -> String {
WideCStr::from_slice_truncate(source)
.unwrap()
.to_string()
.unwrap()
}
// 加載 dll
static LIBRARY: OnceCell<Library> = OnceCell::new();
static MACHINE_KIND: &str = if cfg!(target_os = "windows") {
if cfg!(target_arch = "x86") {
"win32"
} else if cfg!(target_arch = "x86_x64") {
"win64"
} else {
"other"
}
} else if cfg!(target_os = "linux") {
if cfg!(target_arch = "x86") {
"linux32"
} else if cfg!(target_arch = "x86_64") {
"linux64"
} else if cfg!(target_arch = "aarch64") {
"aarch64"
} else if cfg!(target_arch = "arm") {
"arm"
} else {
"other"
}
} else {
"other"
};
//設(shè)置識(shí)別的證件 ID
// 設(shè)置當(dāng)前要識(shí)別的證件類(lèi)型，并將
// 之前已經(jīng)設(shè)置的證件類(lèi)型清除。
// nMainID 主要識(shí)別類(lèi)型，nSubID 子類(lèi)型
// nSubID 頭指針，默認(rèn)將數(shù)組
// nSubID 第 一 個(gè) 元 素 賦 值 為 0 即
// nSubID[0]=0
// type S = c_int[];
type LPCTSTR = *const WideChar;
type BOOL = c_int;
type INITPTR = *const i8;
type CANRST = *mut WideChar;
// 打開(kāi)設(shè)備
type S2V7_open = unsafe extern "system" fn() -> c_int;
// 關(guān)閉設(shè)備
type S2V7_close = unsafe extern "system" fn() -> c_int;
//【set mode 設(shè)置讀證功能】
type S2V7_set_mode =
unsafe extern "system" fn(flg_takeColor: c_int, flg_takeUV: c_int, flg_readChipInfo: c_int, flg_readChipFace: c_int) -> c_int; // Type = 0 即可
//【wait Doc. in 等待放卡】
type S2V7_wait_DocIn =
unsafe extern "system" fn(timeout: f64, flg_in: INITPTR) -> c_int; // Type = 0 即可
//【wait Doc. out 等待拿卡】
type S2V7_wait_DocOut =
unsafe extern "system" fn(timeout: f64, flg_out: INITPTR) -> c_int; // Type = 0 即可
//【process 執(zhí)行讀卡過(guò)程】
type S2V7_process = unsafe extern "system" fn() -> c_int;
//讀取卡類(lèi)型
type S2V7_get_cardType = unsafe extern "system" fn() -> c_int;
//保存彩照
type S2V7_VIS_saveColor = unsafe extern "system" fn(imgPath: LPCTSTR) -> c_int;
//保存紅外照
type S2V7_VIS_saveIR = unsafe extern "system" fn(imgPath: LPCTSTR) -> c_int;
//【get MRZ text 獲取OCR文字信息】
type S2V7_VIS_getMRZtext = unsafe extern "system" fn(text: LPCTSTR) -> c_int;
//show text information 文字信息
type S2V7_RDO_getBytesByIndex = unsafe extern "system" fn(index: c_int,data: LPCTSTR) -> c_int;
type S2V7_VIS_getBytesByIndex = unsafe extern "system" fn(index: c_int,data: LPCTSTR) -> c_int;
type S2V7_RF_active = unsafe extern "system" fn(antenna: c_int,atr: LPCTSTR, atr_len: c_int) -> c_int;
static V7_OPEN: OnceCell<Symbol<S2V7_open>> = OnceCell::new();
static V7_CLOSE: OnceCell<Symbol<S2V7_close>> = OnceCell::new();
static V7_SET_MODE: OnceCell<Symbol<S2V7_set_mode>> = OnceCell::new();
static V7_WAIT_DOCINT: OnceCell<Symbol<S2V7_wait_DocIn>> = OnceCell::new();
static V7_WAIT_DOCOUT: OnceCell<Symbol<S2V7_wait_DocOut>> = OnceCell::new();
static V7_PROCESS: OnceCell<Symbol<S2V7_process>> = OnceCell::new();
static V7_GET_CARDTYPE: OnceCell<Symbol<S2V7_get_cardType>> = OnceCell::new();
static V7_VIS_SAVECOLOR: OnceCell<Symbol<S2V7_VIS_saveColor>> = OnceCell::new();
static V7_VIS_SAVEIR: OnceCell<Symbol<S2V7_VIS_saveIR>> = OnceCell::new();
static V7_VIS_GETMRZTEXT: OnceCell<Symbol<S2V7_VIS_getMRZtext>> = OnceCell::new();
static V7_RDO_getBytesByIndex: OnceCell<Symbol<S2V7_RDO_getBytesByIndex>> = OnceCell::new();
static V7_VIS_getBytesByIndex: OnceCell<Symbol<S2V7_VIS_getBytesByIndex>> = OnceCell::new();
static V7_RF_active: OnceCell<Symbol<S2V7_RF_active>> = OnceCell::new();
// static
static mut INITDLL: bool = false;
static mut DEVICE_START_INDEX: u64 = 0;
static mut DIRECTORY_PATH: OnceCell<String> = OnceCell::new();
static mut USER_ID: OnceCell<String> = OnceCell::new();
static mut DEVCIE_NAME: OnceCell<String> = OnceCell::new();
static mut RESULT_TYPE: OnceCell<i32> = OnceCell::new();
static mut NEED_RECORD: OnceCell<bool> = OnceCell::new();
// 初始化dll
fn init_dll(dll_path: &str) -> Result<bool, Box<dyn std::error::Error>> {
unsafe {
if INITDLL {
return Ok(true);
}
}
println!("加載dll");
println!("dll_path");
let library = LIBRARY.get_or_init(|| unsafe { Library::new(dll_path).unwrap() });
println!("S2V7_open");
V7_OPEN.get_or_init(|| unsafe { library.get::<S2V7_open>(b"S2V7_open").unwrap() });
println!("S2V7_close");
V7_CLOSE.get_or_init(|| unsafe { library.get::<S2V7_close>(b"S2V7_close").unwrap() });
println!("S2V7_set_mode");
V7_SET_MODE.get_or_init(|| unsafe {library.get::<S2V7_set_mode>(b"S2V7_set_mode").unwrap()});
println!("S2V7_wait_DocIn");
V7_WAIT_DOCINT.get_or_init(|| unsafe { library.get::<S2V7_wait_DocIn>(b"S2V7_wait_DocIn").unwrap() });
println!("S2V7_wait_DocOut");
V7_WAIT_DOCOUT.get_or_init(|| unsafe { library.get::<S2V7_wait_DocOut>(b"S2V7_wait_DocOut").unwrap() });
V7_PROCESS.get_or_init(|| unsafe { library.get::<S2V7_process>(b"S2V7_process").unwrap() });
V7_GET_CARDTYPE.get_or_init(|| unsafe { library.get::<S2V7_get_cardType>(b"S2V7_get_cardType").unwrap() });
V7_VIS_SAVECOLOR.get_or_init(|| unsafe { library.get::<S2V7_VIS_saveColor>(b"S2V7_VIS_saveColor").unwrap() });
V7_VIS_SAVEIR.get_or_init(|| unsafe { library.get::<S2V7_VIS_saveIR>(b"S2V7_VIS_saveIR").unwrap() });
V7_VIS_GETMRZTEXT.get_or_init(|| unsafe { library.get::<S2V7_VIS_getMRZtext>(b"S2V7_VIS_getMRZtext").unwrap() });
V7_RDO_getBytesByIndex.get_or_init(|| unsafe { library.get::<S2V7_RDO_getBytesByIndex>(b"S2V7_RDO_getBytesByIndex").unwrap() });
V7_VIS_getBytesByIndex.get_or_init(|| unsafe { library.get::<S2V7_VIS_getBytesByIndex>(b"S2V7_VIS_getBytesByIndex").unwrap() });
V7_RF_active.get_or_init(|| unsafe { library.get::<S2V7_RF_active>(b"S2V7_RF_active").unwrap() });
unsafe {
INITDLL = true;
}
Ok(true)
}
fn init() -> c_int {
let directory = unsafe { DIRECTORY_PATH.get().unwrap() };
let userid = unsafe { USER_ID.get().unwrap() };
let directory_path = std::path::Path::new(directory).join(MACHINE_KIND);
if directory_path.exists() {
let dll_path = directory_path.join(libloading::library_filename("STAR200_V7_DRV"));
println!("dll_path: {:?}", dll_path);
if dll_path.exists() {
match init_dll(dll_path.to_str().unwrap()).is_ok() {
true => {
// 打開(kāi)設(shè)備
let init_result = unsafe {V7_OPEN.get_unchecked()()};
if init_result == 0 {
println!("設(shè)備打開(kāi)成功");
return ResultType::Success as c_int;
} else {
println!("設(shè)備打開(kāi)失敗，代碼：{:?}",init_result);
return ResultType::DeviceNotFound as c_int;
}
}
false => {
return ResultType::INITDLLFail as c_int;
}
}
} else {
return ResultType::DllPathNotExist as c_int;
}
} else {
println!("{:?}", directory_path);
return ResultType::DirectoryPathNotExist as c_int;
}
}
pub fn init_by_node(mut cx: FunctionContext) -> JsResult<JsNumber> {
let directory = cx.argument::<JsString>(0)?.value(&mut cx);
let userid = cx.argument::<JsString>(1)?.value(&mut cx);
unsafe {
DIRECTORY_PATH.take();
DIRECTORY_PATH.set(directory).unwrap();
USER_ID.take();
USER_ID.set(userid).unwrap();
};
let result = init() as f64;
Ok(cx.number(result))
}
#[allow(dead_code)] // 允許dead_code
enum ResultType {
DirectoryPathNotExist = -2003, // 找不到運(yùn)行目錄
DllPathNotExist = -2001, // 找不到dll文件
INITDLLFail = -2000, // 初始化dll
Success = 0, // 成功
UserIdFail = 2001, //用戶(hù) ID 錯(cuò)誤
DeviceInitFail = 2002, // 設(shè)備初始化失敗
DeviceKernelInitFail = 2003, // 初始化核心失敗
DeviceDatInitFail = 2004, //未找到授權(quán)文件
DeviceNotInit = 2101, // 設(shè)備未初始化
DeviceNotFound = 2102, // 沒(méi)有找到設(shè)備
DeviceReConnect = 2103, // 重新連接設(shè)備
Unknown = -100, // 未知錯(cuò)誤
CheckCardInput = 3001, // 證件放入設(shè)備
CheckCardOut = 3002, // 證件移出設(shè)備
CheckCardNotInOrOut = 3000, // 證件無(wú)放入或拿出
CheckCardBarCode = 3003, // 檢測(cè)到手機(jī)條碼
OCRFail=-1, // 未檢測(cè)到OCR區(qū)域
}
type RecogIDCardEXResultItem = HashMap<i32, [String; 2]>;
#[derive(Default, Serialize)]
pub struct RecogIDCardEXResultObject {
pub viz_result: RecogIDCardEXResultItem,
pub viz_orc_result: RecogIDCardEXResultItem,
pub mrz_result: RecogIDCardEXResultItem,
pub mrz_ocr_result: RecogIDCardEXResultItem,
pub chip_result: RecogIDCardEXResultItem,
}
#[derive(Default, Serialize)]
pub struct RecogIDCardEXResult {
pub device_name: String,
pub device_online: bool,
pub reg_info: RecogIDCardEXResultObject,
pub img_base64: HashMap<String, String>,
pub card_type: i32,
pub record_type: i32,
pub card_name: String,
pub success: bool, // 識(shí)別是否成功
}
static SAVE_IMAGE_REUSLT_NAME: [&str; 5] = [
"tempHeadEC.jpg",
"tempHead.jpg",
"tempUV.jpg",
"tempIR.jpg",
"temp.jpg",
];
fn start(mut cx: FunctionContext) -> JsResult<JsUndefined> {
let callback = cx.argument::<JsFunction>(0)?.root(&mut cx);
let mut channel = cx.channel();
channel.reference(&mut cx);
println!("start {}", channel.has_ref());
let index = unsafe {
DEVICE_START_INDEX += 1;
DEVICE_START_INDEX
};
std::thread::spawn(move || {
// Do the heavy lifting inside the background thread.
device_start(callback, channel, index);
});
Ok(cx.undefined())
}
use std::sync::{Arc, Mutex};
fn device_start(callback: Root<JsFunction>, channel: Channel, index: u64) {
let index = index;
let callback = Arc::new(Mutex::new(callback));
//設(shè)置讀證功能
unsafe { V7_SET_MODE.get_unchecked()(1,1,1,1) };
loop {
if index != unsafe { DEVICE_START_INDEX } {
break;
};
let callback_clone = Arc::clone(&callback);
let mut result = RecogIDCardEXResult::default();
let mut flg_in:i8=0;
match unsafe { V7_WAIT_DOCINT.get_unchecked()(5.0,&mut flg_in) } {
// 設(shè)備正常 檢測(cè)是否有放入證件
0 => {
if flg_in==0{
//檢查是否放入超時(shí)
result.record_type = ResultType::CheckCardNotInOrOut as i32;
break;
}
result.device_online = true;
result.device_name =unsafe { DEVCIE_NAME.get_or_init(|| "".to_string()).to_string() };
match unsafe { V7_PROCESS.get_unchecked()() } {
// 證件有放入
0 => {
result.record_type = ResultType::CheckCardInput as i32;
}
// 未檢測(cè)到OCR區(qū)域
-1 => {
result.record_type = ResultType::OCRFail as i32;
}
// 未找到非接卡
// v if v/10 == -21 => {
// result.record_type = ResultType::OCRFail as i32;
// }
// 設(shè)備離線
-3 => {
result.device_online = false;
result.record_type = init();
}
_ => {
result.record_type = ResultType::Unknown as i32;
}
}
}
-3 => {
//設(shè)備離線
let init = init();
result.device_online = false;
result.record_type = init;
}
_ => {
//未知錯(cuò)誤
result.record_type = ResultType::Unknown as i32;
}
};
if unsafe { *NEED_RECORD.get_or_init(|| false) } {
println!("手工點(diǎn)擊識(shí)別+1");
result.record_type = ResultType::CheckCardInput as i32;
}
// let time_now = std::time::Instant::now();
if result.record_type == ResultType::CheckCardInput as i32 {
let _result = recog_card();
result.success = _result.success;
result.img_base64 = _result.img_base64;
result.reg_info = _result.reg_info;
result.card_type = _result.card_type;
result.card_name = _result.card_name;
}
let neet_sendinfo = if Some(true) == unsafe { NEED_RECORD.take() } {
true
} else {
false
};
// let elapsed = time_now.elapsed();
// println!("識(shí)別時(shí)間結(jié)束時(shí)間 {:.6?}", elapsed);
if result.record_type != ResultType::CheckCardNotInOrOut as i32
&& (*unsafe { RESULT_TYPE.get_or_init(|| -10000) } != result.record_type
|| result.record_type == ResultType::CheckCardInput as i32
|| neet_sendinfo)
{
unsafe {
RESULT_TYPE.take();
RESULT_TYPE.set(result.record_type).unwrap();
}
channel.send(move |mut cx| {
let result_json = serde_json::to_string(&result).unwrap();
let callback = callback_clone.lock().unwrap().to_inner(&mut cx);
let this = cx.undefined();
let args = vec![cx.string(&result_json)];
callback.call(&mut cx, this, args)?;
Ok(())
});
}
std::thread::sleep(std::time::Duration::from_millis(20));
}
}
// 白光圖、紅外
// 圖、紫外圖、版面頭像和芯片頭像
pub fn recog_card() -> RecogIDCardEXResult {
let time_now = std::time::Instant::now();
let mut result = RecogIDCardEXResult::default();
result.device_online = true;
let img_path_directory = std::path::Path::new(unsafe { DIRECTORY_PATH.get().unwrap() });
let ir_img_path = img_path_directory.join("ir.jpg");
let color_img_path = img_path_directory.join("color.jpg");
//顯示紅外照
let irResult = unsafe {V7_VIS_SAVEIR.get_unchecked()(encode(ir_img_path.to_str().unwrap()).as_ptr() as LPCTSTR)};
//顯示彩照
let colorResult = unsafe {V7_VIS_SAVECOLOR.get_unchecked()(encode(color_img_path.to_str().unwrap()).as_ptr() as LPCTSTR)};
if irResult==0{
if ir_img_path.exists() {
match std::fs::read(&ir_img_path) {
Ok(image_data) => {
println!("讀取照片成功");
let image_data = base64::encode(&image_data);
let base64_string = String::from("data:image/jpg;base64,");
std::fs::remove_file(ir_img_path).unwrap();
result.img_base64.insert("0".to_string(), base64_string + &image_data);
}
Err(e) => {
println!("讀取照片拋異常");
println!(
"{:?} {:?}",
e,
"ir.jpg",
);
}
};
}
}
if colorResult==0{
if color_img_path.exists() {
match std::fs::read(&color_img_path) {
Ok(image_data) => {
println!("讀取照片成功");
let image_data = base64::encode(&image_data);
let base64_string = String::from("data:image/jpg;base64,");
std::fs::remove_file(color_img_path).unwrap();
result.img_base64.insert("1".to_string(), base64_string + &image_data);
}
Err(e) => {
println!("讀取照片拋異常");
println!(
"{:?} {:?}",
e,
"color.jpg",
);
}
};
}
}
let mut ocritem = RecogIDCardEXResultObject::default();
let mut index: c_int = 0;
//orc識(shí)別文字
let mut mrztext = [0; 1024];
let x = unsafe {V7_VIS_GETMRZTEXT.get_unchecked()(mrztext.as_mut_ptr())};
if x==0{
let result_item = ["MRZ".to_string(), decode(&mrztext)];
ocritem.mrz_result.insert(index, result_item);
index+=1;
}
let mut data:[u16; 256] = [0; 256];
let mut len = unsafe {V7_RDO_getBytesByIndex.get_unchecked()(0,data.as_mut_ptr())};
if len>0{
ocritem.mrz_result.insert(index, ["編號(hào)".to_string(), decode(&data)]);
index+=1;
len = unsafe {V7_RDO_getBytesByIndex.get_unchecked()(1,data.as_mut_ptr())};
ocritem.mrz_result.insert(index, ["國(guó)籍".to_string(), decode(&data)]);
index+=1;
len = unsafe {V7_RDO_getBytesByIndex.get_unchecked()(2,data.as_mut_ptr())};
ocritem.mrz_result.insert(index, ["民族".to_string(), decode(&data)]);
index+=1;
len = unsafe {V7_RDO_getBytesByIndex.get_unchecked()(3,data.as_mut_ptr())};
ocritem.mrz_result.insert(index, ["姓名".to_string(), decode(&data)]);
index+=1;
len = unsafe {V7_RDO_getBytesByIndex.get_unchecked()(4,data.as_mut_ptr())};
let cardType= unsafe {V7_GET_CARDTYPE.get_unchecked()()};
if cardType==101{
//身份證是UTF8格式
ocritem.mrz_result.insert(index, ["中文名".to_string(), decode(&data)]);
}else{
ocritem.mrz_result.insert(index, ["中文名".to_string(), decode(&data)]);
// //中國(guó)護(hù)照的中文姓名 是GBK編碼的
// let name=GB18030.decode(&data, DecoderTrap::Strict).unwrap();
// ocritem.mrz_result.insert(index, ["中文名".to_string(), name.replace("\u{0}","")]);
}
index+=1;
len = unsafe {V7_RDO_getBytesByIndex.get_unchecked()(5,data.as_mut_ptr())};
ocritem.mrz_result.insert(index, ["性別".to_string(), decode(&data)]);
index+=1;
len = unsafe {V7_RDO_getBytesByIndex.get_unchecked()(6,data.as_mut_ptr())};
ocritem.mrz_result.insert(index, ["出生日期".to_string(), decode(&data)]);
index+=1;
len = unsafe {V7_RDO_getBytesByIndex.get_unchecked()(7,data.as_mut_ptr())};
ocritem.mrz_result.insert(index, ["地址".to_string(), decode(&data)]);
index+=1;
len = unsafe {V7_RDO_getBytesByIndex.get_unchecked()(8,data.as_mut_ptr())};
ocritem.mrz_result.insert(index, ["簽發(fā)機(jī)關(guān)".to_string(), decode(&data)]);
index+=1;
len = unsafe {V7_RDO_getBytesByIndex.get_unchecked()(9,data.as_mut_ptr())};
ocritem.mrz_result.insert(index, ["有效期始".to_string(), decode(&data)]);
index+=1;
len = unsafe {V7_RDO_getBytesByIndex.get_unchecked()(10,data.as_mut_ptr())};
ocritem.mrz_result.insert(index, ["有效期止".to_string(), decode(&data)]);
index+=1;
len = unsafe {V7_RDO_getBytesByIndex.get_unchecked()(20,data.as_mut_ptr())};
ocritem.mrz_result.insert(index, ["港澳臺(tái)ID".to_string(), decode(&data)]);
index+=1;
}
else{
len = unsafe {V7_VIS_getBytesByIndex.get_unchecked()(0,data.as_mut_ptr())};
ocritem.mrz_result.insert(index, ["編號(hào)".to_string(), decode(&data)]);
index+=1;
len = unsafe {V7_VIS_getBytesByIndex.get_unchecked()(1,data.as_mut_ptr())};
ocritem.mrz_result.insert(index, ["國(guó)籍".to_string(), decode(&data)]);
index+=1;
len = unsafe {V7_VIS_getBytesByIndex.get_unchecked()(2,data.as_mut_ptr())};
ocritem.mrz_result.insert(index, ["民族".to_string(), decode(&data)]);
index+=1;
len = unsafe {V7_VIS_getBytesByIndex.get_unchecked()(3,data.as_mut_ptr())};
ocritem.mrz_result.insert(index, ["姓名".to_string(), decode(&data)]);
index+=1;
//中國(guó)護(hù)照的中文姓名 是GBK編碼的, 身份證不會(huì)執(zhí)行到這里
len = unsafe {V7_VIS_getBytesByIndex.get_unchecked()(4,data.as_mut_ptr())};
ocritem.mrz_result.insert(index, ["中文名".to_string(), decode(&data)]);
// let name=GB18030.decode(&data, DecoderTrap::Strict).unwrap();
// ocritem.mrz_result.insert(index, ["中文名".to_string(), name.replace("\u{0}","")]);
index+=1;
len = unsafe {V7_VIS_getBytesByIndex.get_unchecked()(5,data.as_mut_ptr())};
ocritem.mrz_result.insert(index, ["性別".to_string(), decode(&data)]);
index+=1;
len = unsafe {V7_VIS_getBytesByIndex.get_unchecked()(6,data.as_mut_ptr())};
ocritem.mrz_result.insert(index, ["出生日期".to_string(), decode(&data)]);
index+=1;
len = unsafe {V7_VIS_getBytesByIndex.get_unchecked()(7,data.as_mut_ptr())};
ocritem.mrz_result.insert(index, ["地址".to_string(), decode(&data)]);
index+=1;
len = unsafe {V7_VIS_getBytesByIndex.get_unchecked()(8,data.as_mut_ptr())};
ocritem.mrz_result.insert(index, ["簽發(fā)機(jī)關(guān)".to_string(), decode(&data)]);
index+=1;
len = unsafe {V7_VIS_getBytesByIndex.get_unchecked()(9,data.as_mut_ptr())};
ocritem.mrz_result.insert(index, ["有效期始".to_string(), decode(&data)]);
index+=1;
len = unsafe {V7_VIS_getBytesByIndex.get_unchecked()(10,data.as_mut_ptr())};
ocritem.mrz_result.insert(index, ["有效期止".to_string(), decode(&data)]);
index+=1;
len = unsafe {V7_VIS_getBytesByIndex.get_unchecked()(20,data.as_mut_ptr())};
ocritem.mrz_result.insert(index, ["港澳臺(tái)ID".to_string(), decode(&data)]);
index+=1;
}
result.reg_info=ocritem;
result.success = true;
result.card_type = unsafe {V7_GET_CARDTYPE.get_unchecked()()};
let elapsed = time_now.elapsed();
println!("{:.6?}", elapsed);
return result;
}
pub fn regcord_by_node(mut cx: FunctionContext) -> JsResult<JsNull> {
println!("regcord_by_node");
unsafe {
NEED_RECORD.take();
NEED_RECORD.set(true).unwrap();
};
Ok(cx.null())
}
#[neon::main]
fn main(mut cx: ModuleContext) -> NeonResult<()> {
cx.export_function("init", init_by_node)?;
cx.export_function("start", start)?;
cx.export_function("regcord_by_node", regcord_by_node)?;
Ok(())
}到此這篇關(guān)于使用rust調(diào)用c++靜態(tài)庫(kù)并編譯nodejs包的文章就介紹到這了,更多相關(guān)rust調(diào)用c++靜態(tài)庫(kù)內(nèi)容請(qǐng)搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家！
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這篇文章主要介紹了如何用Rust編寫(xiě)一個(gè)ChatGPT桌面應(yīng)用，文中有詳細(xì)的流程介紹，對(duì)大家的學(xué)習(xí)或工作有意一定的幫助,需要的朋友可以參考下2023-05-05
Rust 的設(shè)計(jì)理念一向是顯式比隱式好，也就是說(shuō)所有的行為盡量在代碼中表現(xiàn)出來(lái)，這篇文章主要介紹了Rust?中?Deref?Coercion?介紹,需要的朋友可以參考下2022-10-10
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這篇文章主要為大家詳細(xì)介紹了使用Rust實(shí)現(xiàn)日志記錄功能的相關(guān)知識(shí),文中的示例代碼講解詳細(xì),具有一定的借鑒價(jià)值,有需要的可以參考一下2024-04-04
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本文通過(guò)一個(gè)尋找列表中最大值的示例,展示了如何從重復(fù)代碼中提取函數(shù),再利用泛型實(shí)現(xiàn)代碼復(fù)用,主要步驟包括：識(shí)別重復(fù)邏輯；抽象提??；泛型應(yīng)用；進(jìn)一步擴(kuò)展,通過(guò)不斷抽象和泛化,我們不僅能減少代碼重復(fù),還能寫(xiě)出更通用、健壯和可維護(hù)的代碼2025-02-02
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rustup是一個(gè)用于管理Rust版本和工具鏈的工具,這篇文章主要介紹了MacBook Pro安裝rust編程環(huán)境的過(guò)程,感興趣的朋友跟隨小編一起看看吧2024-02-02
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這篇文章主要學(xué)習(xí)如何基于Rust使用csv這個(gè)crate構(gòu)建一個(gè)CSV文件讀取器的過(guò)程,學(xué)習(xí)了csv相關(guān)的用法以及一些往期學(xué)過(guò)的crate的復(fù)習(xí),兼顧了實(shí)用性和Rust的學(xué)習(xí),需要的朋友可以參考下2024-05-05