470 lines
15 KiB
Markdown
470 lines
15 KiB
Markdown
English | [中文](README-CN.md)
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# libhv
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[](https://github.com/ithewei/libhv/actions/workflows/CI.yml?query=branch%3Amaster)
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[](https://github.com/ithewei/libhv/actions/workflows/CI.yml?query=branch%3Amaster)
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[](https://github.com/ithewei/libhv/actions/workflows/CI.yml?query=branch%3Amaster)
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[](https://github.com/ithewei/libhv/actions/workflows/CI.yml?query=branch%3Amaster)
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[](https://github.com/ithewei/libhv/actions/workflows/CI.yml?query=branch%3Amaster)
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[](https://github.com/ithewei/libhv/actions/workflows/benchmark.yml?query=branch%3Amaster)
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<br>
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[](https://github.com/ithewei/libhv/releases)
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[](https://github.com/ithewei/libhv/stargazers)
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[](https://github.com/ithewei/libhv/forks)
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[](https://github.com/ithewei/libhv/issues)
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[](https://github.com/ithewei/libhv/pulls)
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[](https://github.com/ithewei/libhv/contributors)
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[](LICENSE)
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<br>
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[](https://gitee.com/libhv/libhv)
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[](https://github.com/oz123/awesome-c)
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[](https://github.com/fffaraz/awesome-cpp)
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Like `libevent, libev, and libuv`,
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`libhv` provides event-loop with non-blocking IO and timer,
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but simpler api and richer protocols.
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## ✨ Features
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- Cross-platform (Linux, Windows, macOS, Android, iOS, BSD, Solaris)
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- High-performance EventLoop (IO, timer, idle, custom, signal)
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- TCP/UDP client/server/proxy
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- TCP supports heartbeat, reconnect, upstream, MultiThread-safe write and close, etc.
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- Built-in common unpacking modes (FixedLength, Delimiter, LengthField)
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- RUDP support: WITH_KCP
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- SSL/TLS support: (via WITH_OPENSSL or WITH_GNUTLS or WITH_MBEDTLS)
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- HTTP client/server (support https http1/x http2 grpc)
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- HTTP supports static service, indexof service, forward/reverse proxy service, sync/async API handler
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- HTTP supports RESTful, router, middleware, keep-alive, chunked, SSE, etc.
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- WebSocket client/server
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- MQTT client
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## ⌛️ Build
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see [BUILD.md](BUILD.md)
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Makefile:
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```shell
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./configure
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make
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sudo make install
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```
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or cmake:
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```shell
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mkdir build
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cd build
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cmake ..
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cmake --build .
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```
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or bazel:
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```shell
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bazel build libhv
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```
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or vcpkg:
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```shell
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vcpkg install libhv
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```
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or xmake:
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```shell
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xrepo install libhv
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```
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## ⚡️ Getting Started
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run `./getting_started.sh`:
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```shell
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git clone https://github.com/ithewei/libhv.git
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cd libhv
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./configure
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make
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bin/httpd -h
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bin/httpd -d
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#bin/httpd -c etc/httpd.conf -s restart -d
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ps aux | grep httpd
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# http file service
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bin/curl -v localhost:8080
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# http indexof service
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bin/curl -v localhost:8080/downloads/
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# http api service
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bin/curl -v localhost:8080/ping
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bin/curl -v localhost:8080/echo -d "hello,world!"
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bin/curl -v localhost:8080/query?page_no=1\&page_size=10
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bin/curl -v localhost:8080/kv -H "Content-Type:application/x-www-form-urlencoded" -d 'user=admin&pswd=123456'
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bin/curl -v localhost:8080/json -H "Content-Type:application/json" -d '{"user":"admin","pswd":"123456"}'
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bin/curl -v localhost:8080/form -F 'user=admin' -F 'pswd=123456'
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bin/curl -v localhost:8080/upload -d "@LICENSE"
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bin/curl -v localhost:8080/upload -F "file=@LICENSE"
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bin/curl -v localhost:8080/test -H "Content-Type:application/x-www-form-urlencoded" -d 'bool=1&int=123&float=3.14&string=hello'
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bin/curl -v localhost:8080/test -H "Content-Type:application/json" -d '{"bool":true,"int":123,"float":3.14,"string":"hello"}'
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bin/curl -v localhost:8080/test -F 'bool=1' -F 'int=123' -F 'float=3.14' -F 'string=hello'
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# RESTful API: /group/:group_name/user/:user_id
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bin/curl -v -X DELETE localhost:8080/group/test/user/123
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# benchmark
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bin/wrk -c 1000 -d 10 -t 4 http://127.0.0.1:8080/
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```
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### TCP
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#### tcp server
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**c version**: [examples/tcp_echo_server.c](examples/tcp_echo_server.c)
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**c++ version**: [evpp/TcpServer_test.cpp](evpp/TcpServer_test.cpp)
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```c++
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#include "TcpServer.h"
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using namespace hv;
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int main() {
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int port = 1234;
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TcpServer srv;
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int listenfd = srv.createsocket(port);
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if (listenfd < 0) {
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return -1;
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}
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printf("server listen on port %d, listenfd=%d ...\n", port, listenfd);
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srv.onConnection = [](const SocketChannelPtr& channel) {
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std::string peeraddr = channel->peeraddr();
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if (channel->isConnected()) {
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printf("%s connected! connfd=%d\n", peeraddr.c_str(), channel->fd());
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} else {
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printf("%s disconnected! connfd=%d\n", peeraddr.c_str(), channel->fd());
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}
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};
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srv.onMessage = [](const SocketChannelPtr& channel, Buffer* buf) {
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// echo
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channel->write(buf);
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};
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srv.setThreadNum(4);
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srv.start();
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// press Enter to stop
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while (getchar() != '\n');
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return 0;
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}
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```
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#### tcp client
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**c version**: [examples/tcp_client_test.c](examples/tcp_client_test.c)
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**c++ version**: [evpp/TcpClient_test.cpp](evpp/TcpClient_test.cpp)
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```c++
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#include <iostream>
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#include "TcpClient.h"
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using namespace hv;
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int main() {
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int port = 1234;
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TcpClient cli;
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int connfd = cli.createsocket(port);
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if (connfd < 0) {
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return -1;
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}
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cli.onConnection = [](const SocketChannelPtr& channel) {
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std::string peeraddr = channel->peeraddr();
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if (channel->isConnected()) {
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printf("connected to %s! connfd=%d\n", peeraddr.c_str(), channel->fd());
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} else {
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printf("disconnected to %s! connfd=%d\n", peeraddr.c_str(), channel->fd());
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}
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};
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cli.onMessage = [](const SocketChannelPtr& channel, Buffer* buf) {
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printf("< %.*s\n", (int)buf->size(), (char*)buf->data());
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};
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cli.start();
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std::string str;
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while (std::getline(std::cin, str)) {
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if (str == "close") {
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cli.closesocket();
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} else if (str == "start") {
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cli.start();
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} else if (str == "stop") {
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cli.stop();
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break;
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} else {
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if (!cli.isConnected()) break;
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cli.send(str);
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}
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}
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return 0;
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}
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```
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### HTTP
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#### http server
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see [examples/http_server_test.cpp](examples/http_server_test.cpp)
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**golang gin style**
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```c++
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#include "HttpServer.h"
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using namespace hv;
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int main() {
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HttpService router;
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router.GET("/ping", [](HttpRequest* req, HttpResponse* resp) {
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return resp->String("pong");
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});
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router.GET("/data", [](HttpRequest* req, HttpResponse* resp) {
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static char data[] = "0123456789";
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return resp->Data(data, 10);
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});
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router.GET("/paths", [&router](HttpRequest* req, HttpResponse* resp) {
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return resp->Json(router.Paths());
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});
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router.GET("/get", [](HttpRequest* req, HttpResponse* resp) {
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resp->json["origin"] = req->client_addr.ip;
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resp->json["url"] = req->url;
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resp->json["args"] = req->query_params;
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resp->json["headers"] = req->headers;
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return 200;
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});
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router.POST("/echo", [](const HttpContextPtr& ctx) {
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return ctx->send(ctx->body(), ctx->type());
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});
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HttpServer server(&router);
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server.setPort(8080);
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server.setThreadNum(4);
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server.run();
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return 0;
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}
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```
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#### http client
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see [examples/http_client_test.cpp](examples/http_client_test.cpp)
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**python requests style**
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```c++
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#include "requests.h"
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int main() {
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auto resp = requests::get("http://www.example.com");
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if (resp == NULL) {
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printf("request failed!\n");
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} else {
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printf("%s\n", resp->body.c_str());
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}
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resp = requests::post("127.0.0.1:8080/echo", "hello,world!");
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if (resp == NULL) {
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printf("request failed!\n");
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} else {
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printf("%s\n", resp->body.c_str());
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}
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return 0;
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}
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```
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### WebSocket
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#### WebSocket server
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see [examples/websocket_server_test.cpp](examples/websocket_server_test.cpp)
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```c++
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#include "WebSocketServer.h"
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using namespace hv;
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int main(int argc, char** argv) {
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WebSocketService ws;
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ws.onopen = [](const WebSocketChannelPtr& channel, const HttpRequestPtr& req) {
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printf("onopen: GET %s\n", req->Path().c_str());
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};
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ws.onmessage = [](const WebSocketChannelPtr& channel, const std::string& msg) {
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printf("onmessage: %.*s\n", (int)msg.size(), msg.data());
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};
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ws.onclose = [](const WebSocketChannelPtr& channel) {
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printf("onclose\n");
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};
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WebSocketServer server(&ws);
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server.setPort(9999);
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server.setThreadNum(4);
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server.run();
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return 0;
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}
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```
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#### WebSocket client
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see [examples/websocket_client_test.cpp](examples/websocket_client_test.cpp)
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```c++
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#include "WebSocketClient.h"
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using namespace hv;
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int main(int argc, char** argv) {
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WebSocketClient ws;
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ws.onopen = []() {
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printf("onopen\n");
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};
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ws.onmessage = [](const std::string& msg) {
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printf("onmessage: %.*s\n", (int)msg.size(), msg.data());
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};
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ws.onclose = []() {
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printf("onclose\n");
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};
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// reconnect: 1,2,4,8,10,10,10...
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reconn_setting_t reconn;
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reconn_setting_init(&reconn);
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reconn.min_delay = 1000;
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reconn.max_delay = 10000;
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reconn.delay_policy = 2;
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ws.setReconnect(&reconn);
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ws.open("ws://127.0.0.1:9999/test");
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std::string str;
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while (std::getline(std::cin, str)) {
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if (!ws.isConnected()) break;
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if (str == "quit") {
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ws.close();
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break;
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}
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ws.send(str);
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}
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return 0;
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}
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```
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## 🍭 More examples
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### c version
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- [examples/hloop_test.c](examples/hloop_test.c)
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- [examples/htimer_test.c](examples/htimer_test.c)
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- [examples/pipe_test.c](examples/pipe_test.c)
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- [examples/tcp_echo_server.c](examples/tcp_echo_server.c)
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- [examples/tcp_chat_server.c](examples/tcp_chat_server.c)
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- [examples/tcp_proxy_server.c](examples/tcp_proxy_server.c)
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- [examples/udp_echo_server.c](examples/udp_echo_server.c)
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- [examples/udp_proxy_server.c](examples/udp_proxy_server.c)
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- [examples/socks5_proxy_server.c](examples/socks5_proxy_server.c)
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- [examples/tinyhttpd.c](examples/tinyhttpd.c)
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- [examples/tinyproxyd.c](examples/tinyproxyd.c)
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- [examples/jsonrpc](examples/jsonrpc)
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- [examples/mqtt](examples/mqtt)
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- [examples/multi-thread/multi-acceptor-processes.c](examples/multi-thread/multi-acceptor-processes.c)
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- [examples/multi-thread/multi-acceptor-threads.c](examples/multi-thread/multi-acceptor-threads.c)
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- [examples/multi-thread/one-acceptor-multi-workers.c](examples/multi-thread/one-acceptor-multi-workers.c)
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### c++ version
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- [evpp/EventLoop_test.cpp](evpp/EventLoop_test.cpp)
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- [evpp/EventLoopThread_test.cpp](evpp/EventLoopThread_test.cpp)
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- [evpp/EventLoopThreadPool_test.cpp](evpp/EventLoopThreadPool_test.cpp)
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- [evpp/TimerThread_test.cpp](evpp/TimerThread_test.cpp)
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- [evpp/TcpServer_test.cpp](evpp/TcpServer_test.cpp)
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- [evpp/TcpClient_test.cpp](evpp/TcpClient_test.cpp)
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- [evpp/UdpServer_test.cpp](evpp/UdpServer_test.cpp)
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- [evpp/UdpClient_test.cpp](evpp/UdpClient_test.cpp)
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- [examples/http_server_test.cpp](examples/http_server_test.cpp)
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- [examples/http_client_test.cpp](examples/http_client_test.cpp)
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- [examples/websocket_server_test.cpp](examples/websocket_server_test.cpp)
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- [examples/websocket_client_test.cpp](examples/websocket_client_test.cpp)
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- [examples/protorpc](examples/protorpc)
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- [hv-projects/QtDemo](https://github.com/hv-projects/QtDemo)
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### simulate well-known command line tools
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- [examples/nc](examples/nc.c)
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- [examples/nmap](examples/nmap)
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- [examples/httpd](examples/httpd)
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- [examples/wrk](examples/wrk.cpp)
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- [examples/curl](examples/curl.cpp)
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- [examples/wget](examples/wget.cpp)
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- [examples/consul](examples/consul)
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- [examples/kcptun](examples/kcptun)
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## 🥇 Benchmark
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### `pingpong echo-servers`
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```shell
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cd echo-servers
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./build.sh
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./benchmark.sh
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```
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**throughput**:
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```shell
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libevent running on port 2001
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libev running on port 2002
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libuv running on port 2003
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libhv running on port 2004
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asio running on port 2005
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poco running on port 2006
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==============2001=====================================
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[127.0.0.1:2001] 4 threads 1000 connections run 10s
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total readcount=1616761 readbytes=1655563264
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throughput = 157 MB/s
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==============2002=====================================
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[127.0.0.1:2002] 4 threads 1000 connections run 10s
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total readcount=2153171 readbytes=2204847104
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throughput = 210 MB/s
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==============2003=====================================
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[127.0.0.1:2003] 4 threads 1000 connections run 10s
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total readcount=1599727 readbytes=1638120448
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throughput = 156 MB/s
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==============2004=====================================
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[127.0.0.1:2004] 4 threads 1000 connections run 10s
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total readcount=2202271 readbytes=2255125504
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throughput = 215 MB/s
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==============2005=====================================
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[127.0.0.1:2005] 4 threads 1000 connections run 10s
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total readcount=1354230 readbytes=1386731520
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throughput = 132 MB/s
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==============2006=====================================
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[127.0.0.1:2006] 4 threads 1000 connections run 10s
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total readcount=1699652 readbytes=1740443648
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throughput = 165 MB/s
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```
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### `iperf tcp_proxy_server`
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```shell
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# sudo apt install iperf
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iperf -s -p 5001 > /dev/null &
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bin/tcp_proxy_server 1212 127.0.0.1:5001 &
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iperf -c 127.0.0.1 -p 5001 -l 8K
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iperf -c 127.0.0.1 -p 1212 -l 8K
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```
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**Bandwidth**:
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```shell
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------------------------------------------------------------
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[ 3] local 127.0.0.1 port 52560 connected with 127.0.0.1 port 5001
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[ ID] Interval Transfer Bandwidth
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[ 3] 0.0-10.0 sec 20.8 GBytes 17.9 Gbits/sec
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------------------------------------------------------------
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[ 3] local 127.0.0.1 port 48142 connected with 127.0.0.1 port 1212
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[ ID] Interval Transfer Bandwidth
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[ 3] 0.0-10.0 sec 11.9 GBytes 10.2 Gbits/sec
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```
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### `webbench`
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```shell
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# sudo apt install wrk
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wrk -c 100 -t 4 -d 10s http://127.0.0.1:8080/
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# sudo apt install apache2-utils
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ab -c 100 -n 100000 http://127.0.0.1:8080/
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```
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**libhv(port:8080) vs nginx(port:80)**
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Above test results can be found on [Github Actions](https://github.com/ithewei/libhv/actions/workflows/benchmark.yml).
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