chenshuo / muduo-tutorial Goto Github PK

Tutorial of Muduo network library

C++ 41.73% Python 8.90% CMake 37.18% Makefile 12.20%

muduo-tutorial's Introduction

Examples of Muduo network library

0) src             - source file
1) bazel           - build with Bazel
2) cmake-submodule - build with CMake, checking out muduo as a git submodule
3) cmake           - build with CMake
2) makefile        - build with Makefile

1) build with bazel
cd bazel
bazel build -c opt :all

2) build with CMake with git submodule
git submodule update --init
mkdir build
cd build
cmake ../cmake-submodule
make

Assuming Muduo is installed in $HOME/build/debug-install

3) build with CMake
mkdir build
cd build
cmake ../cmake
make
# echo binary is in ./bin/

4) build with GNU make
cd makefile
make
# echo binary is in ./

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muduo-tutorial's Issues

echo.cc:29:51: error: reference to ‘_1’ is ambiguous boost::bind(&EchoServer::onMessage, this, _1, _2, _3));

Dear Chen,
I downloaded the muduo,  muduo-protorpc and  muduo-tutorial into /home/ocean/MYGIT/ and compiled muduo and muduo-protorpc successfulley.
Then I modified the muduo-tutorial/cmake/CMakeLists.txt and tried to compile it but failed. 
Can you kindly tell me what step was wrong?

------------------------------------------------------------------

My Os is ubuntu 14.04 LTS and basic libs were ready:
$ sudo apt-get install libboost-dev
$ sudo apt-get install libprotoc-dev protobuf-compiler
$ sudo apt-get install libprotobuf-dev cmake
$ git clone https://github.com/chenshuo/muduo.git
$ git clone https://github.com/chenshuo/muduo-protorpc.git
$ cd muduo && git checkout cpp11 && ./build.sh install
$ cd muduo-protorpc && ./build.sh

ocean@hp:~$ dpkg -S /usr/include/boost/version.hpp
libboost1.54-dev: /usr/include/boost/version.hpp

---------------------------------------------------------------------------------
Following are the error information:

ocean@hp:~/MYGIT/muduo-tutorial/cmake$ cmake .
-- /home/ocean/MYGIT/build/release-install-cpp11/include
-- /home/ocean/MYGIT/build/release-install-cpp11/lib
-- /home/ocean/MYGIT/build/release-install-cpp11/lib/libmuduo_base.a
-- /home/ocean/MYGIT/build/release-install-cpp11/lib/libmuduo_net.a
-- Boost version: 1.54.0
-- Configuring done
-- Generating done
-- Build files have been written to: /home/ocean/MYGIT/muduo-tutorial/cmake
ocean@hp:~/MYGIT/muduo-tutorial/cmake$ make
[100%] Building CXX object CMakeFiles/echo.dir/home/ocean/MYGIT/muduo-tutorial/src/echo.cc.o
/home/ocean/MYGIT/muduo-tutorial/src/echo.cc: In constructor ‘EchoServer::EchoServer(muduo::net::EventLoop*, const muduo::net::InetAddress&)’:
/home/ocean/MYGIT/muduo-tutorial/src/echo.cc:27:54: error: reference to ‘_1’ is ambiguous
         boost::bind(&EchoServer::onConnection, this, _1));
                                                      ^
In file included from /home/ocean/MYGIT/build/release-install-cpp11/include/muduo/net/Callbacks.h:16:0,
                 from /home/ocean/MYGIT/build/release-install-cpp11/include/muduo/net/TcpConnection.h:16,
                 from /home/ocean/MYGIT/build/release-install-cpp11/include/muduo/net/TcpServer.h:16,
                 from /home/ocean/MYGIT/muduo-tutorial/src/echo.cc:1:
/usr/include/c++/4.8/functional:1004:34: note: candidates are: const std::_Placeholder<1> std::placeholders::_1
     extern const _Placeholder<1> _1;
                                  ^
In file included from /usr/include/boost/bind/bind.hpp:1742:0,
                 from /usr/include/boost/bind.hpp:22,
                 from /home/ocean/MYGIT/muduo-tutorial/src/echo.cc:9:
/usr/include/boost/bind/placeholders.hpp:55:15: note:                 boost::arg<1> {anonymous}::_1
 boost::arg<1> _1;
               ^
/home/ocean/MYGIT/muduo-tutorial/src/echo.cc:29:51: error: reference to ‘_1’ is ambiguous
         boost::bind(&EchoServer::onMessage, this, _1, _2, _3));
                                                   ^
In file included from /home/ocean/MYGIT/build/release-install-cpp11/include/muduo/net/Callbacks.h:16:0,
                 from /home/ocean/MYGIT/build/release-install-cpp11/include/muduo/net/TcpConnection.h:16,
                 from /home/ocean/MYGIT/build/release-install-cpp11/include/muduo/net/TcpServer.h:16,
                 from /home/ocean/MYGIT/muduo-tutorial/src/echo.cc:1:
/usr/include/c++/4.8/functional:1004:34: note: candidates are: const std::_Placeholder<1> std::placeholders::_1
     extern const _Placeholder<1> _1;
                                  ^
In file included from /usr/include/boost/bind/bind.hpp:1742:0,
                 from /usr/include/boost/bind.hpp:22,
                 from /home/ocean/MYGIT/muduo-tutorial/src/echo.cc:9:
/usr/include/boost/bind/placeholders.hpp:55:15: note:                 boost::arg<1> {anonymous}::_1
 boost::arg<1> _1;
               ^
/home/ocean/MYGIT/muduo-tutorial/src/echo.cc:29:55: error: reference to ‘_2’ is ambiguous
         boost::bind(&EchoServer::onMessage, this, _1, _2, _3));
                                                       ^
In file included from /home/ocean/MYGIT/build/release-install-cpp11/include/muduo/net/Callbacks.h:16:0,
                 from /home/ocean/MYGIT/build/release-install-cpp11/include/muduo/net/TcpConnection.h:16,
                 from /home/ocean/MYGIT/build/release-install-cpp11/include/muduo/net/TcpServer.h:16,
                 from /home/ocean/MYGIT/muduo-tutorial/src/echo.cc:1:
/usr/include/c++/4.8/functional:1005:34: note: candidates are: const std::_Placeholder<2> std::placeholders::_2
     extern const _Placeholder<2> _2;
                                  ^
In file included from /usr/include/boost/bind/bind.hpp:1742:0,
                 from /usr/include/boost/bind.hpp:22,
                 from /home/ocean/MYGIT/muduo-tutorial/src/echo.cc:9:
/usr/include/boost/bind/placeholders.hpp:56:15: note:                 boost::arg<2> {anonymous}::_2
 boost::arg<2> _2;
               ^
/home/ocean/MYGIT/muduo-tutorial/src/echo.cc:29:59: error: reference to ‘_3’ is ambiguous
         boost::bind(&EchoServer::onMessage, this, _1, _2, _3));
                                                           ^
In file included from /home/ocean/MYGIT/build/release-install-cpp11/include/muduo/net/Callbacks.h:16:0,
                 from /home/ocean/MYGIT/build/release-install-cpp11/include/muduo/net/TcpConnection.h:16,
                 from /home/ocean/MYGIT/build/release-install-cpp11/include/muduo/net/TcpServer.h:16,
                 from /home/ocean/MYGIT/muduo-tutorial/src/echo.cc:1:
/usr/include/c++/4.8/functional:1006:34: note: candidates are: const std::_Placeholder<3> std::placeholders::_3
     extern const _Placeholder<3> _3;
                                  ^
In file included from /usr/include/boost/bind/bind.hpp:1742:0,
                 from /usr/include/boost/bind.hpp:22,
                 from /home/ocean/MYGIT/muduo-tutorial/src/echo.cc:9:
/usr/include/boost/bind/placeholders.hpp:57:15: note:                 boost::arg<3> {anonymous}::_3
 boost::arg<3> _3;
               ^
/home/ocean/MYGIT/muduo-tutorial/src/echo.cc: At global scope:
/home/ocean/MYGIT/muduo-tutorial/src/echo.cc:62:1: error: ‘scoped_ptr’ in namespace ‘boost’ does not name a type
 boost::scoped_ptr<muduo::AsyncLogging> g_asyncLog;
 ^
/home/ocean/MYGIT/muduo-tutorial/src/echo.cc: In function ‘void asyncOutput(const char*, int)’:
/home/ocean/MYGIT/muduo-tutorial/src/echo.cc:66:3: error: ‘g_asyncLog’ was not declared in this scope
   g_asyncLog->append(msg, len);
   ^
/home/ocean/MYGIT/muduo-tutorial/src/echo.cc: In function ‘void setLogging(const char*)’:
/home/ocean/MYGIT/muduo-tutorial/src/echo.cc:74:3: error: ‘g_asyncLog’ was not declared in this scope
   g_asyncLog.reset(new muduo::AsyncLogging(::basename(name), kRollSize));
   ^
make[2]: *** [CMakeFiles/echo.dir/home/ocean/MYGIT/muduo-tutorial/src/echo.cc.o] 错误 1
make[1]: *** [CMakeFiles/echo.dir/all] 错误 2
make: *** [all] 错误 2


---------------------------------------------------------------------------
Following are the updates to CMakeLists.txt:

diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index 960cfa1..46dfd33 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -3,11 +3,13 @@ cmake_minimum_required(VERSION 2.6)
 project(echo CXX)
 
 if(NOT CMAKE_BUILD_TYPE)
-  set(CMAKE_BUILD_TYPE "debug")
+  #set(CMAKE_BUILD_TYPE "debug")
+  set(CMAKE_BUILD_TYPE "release")
 endif()
 
 if(NOT MUDUO_PATH)
-  set(MUDUO_PATH "/home/$ENV{USER}/build/${CMAKE_BUILD_TYPE}-install")
+  #set(MUDUO_PATH "/home/$ENV{USER}/build/${CMAKE_BUILD_TYPE}-install")
+  set(MUDUO_PATH "/home/$ENV{USER}/MYGIT/build/${CMAKE_BUILD_TYPE}-install-cpp11")
 endif()
 
 set(CXX_FLAGS
@@ -26,6 +28,7 @@ set(CXX_FLAGS
  -Wshadow
  -Wwrite-strings
  -march=native
+ -std=c++11
  # -MMD
  # -std=c++0x
  -rdynamic
diff --git a/makefile/Makefile b/makefile/Makefile
index 8c97c72..937e00c 100644
--- a/makefile/Makefile
+++ b/makefile/Makefile
@@ -1,10 +1,10 @@
-MUDUO_DIRECTORY ?= $(HOME)/build/debug-install
+MUDUO_DIRECTORY ?= $(HOME)/MYGIT/build/release-install-cpp11
 #MUDUO_DIRECTORY ?= $(HOME)/build/install
 MUDUO_INCLUDE = $(MUDUO_DIRECTORY)/include
 MUDUO_LIBRARY = $(MUDUO_DIRECTORY)/lib
 SRC = ../src
 
-CXXFLAGS = -g -O0 -Wall -Wextra -Werror \
+CXXFLAGS = -g -O0 -Wall -Wextra -Werror -std=c++11 \
 	   -Wconversion -Wno-unused-parameter \
 	   -Wold-style-cast -Woverloaded-virtual \
 	   -Wpointer-arith -Wshadow -Wwrite-strings \


---------------------------------------------------------------------------

echo.cc编译错误

CMakeFiles/echo.dir/home/lgh/dbbase/src/echo.cc.o: In function setLogging(char const*)': /home/lgh/dbbase/src/echo.cc:74: undefined reference to muduo::AsyncLogging::AsyncLogging(__gnu_cxx::__versa_string<char, std::char_traits, std::allocator, __gnu_cxx::__sso_string_base> const&, long, int)'

is moduo support Conan?

我认为muduo在setCloseCallback后存在连接泄露，希望能得到您的回复

muduo 给客户端设置 setCloseCallback 后存在连接泄露，当我onConnect的时候

void DeviceServer::MQTTServer::onConnection(const muduo::net::TcpConnectionPtr& conn)
{
//    LOG_TRACE << conn->peerAddress().toIpPort() << " -> "
//              << conn->localAddress().toIpPort() << " is "
//              << (conn->connected() ? "UP" : "DOWN");
    conn->setTcpNoDelay(true);
    conn->setCloseCallback(std::bind(&MQTTServer::onClose, this, _1));
    //绑定一个mqtt处理器
}

这时候会替换掉原来的handle close，这时候客户端主动关闭，服务端并不会close 导致出现连接泄露，服务端会出现大量的close-wait

COMMAND      PID     USER   FD   TYPE  DEVICE SIZE/OFF NODE NAME
mqtt-prox 108514 zhanglei    6u  IPv4 1657576      0t0  TCP *:9500 (LISTEN)
mqtt-prox 108514 zhanglei   11u  IPv4 1672517      0t0  TCP localhost:9500->localhost:44958 (CLOSE_WAIT)
mqtt-prox 108514 zhanglei   13u  IPv4 1656594      0t0  TCP localhost:9500->localhost:44984 (CLOSE_WAIT)
mqtt-prox 108514 zhanglei   14u  IPv4 1656662      0t0  TCP localhost:9500->localhost:44986 (CLOSE_WAIT)

我发现muduo 的Tcpserver中的connections容器在不停的增加，并没有调用removeConnection，由于removeConnection是私有的，所以我无法调用removeConnection来从stl容器中去掉这个连接

编译出错

samuel@bazel$ bazel build ...
Starting local Bazel server and connecting to it...
INFO: SHA256 (https://github.com/chenshuo/muduo/archive/master.zip) = 321ce19134deed89a7d99d4a9edd51d80174d0283290716e7a5ac519b4f4042c
DEBUG: Rule 'muduo' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "321ce19134deed89a7d99d4a9edd51d80174d0283290716e7a5ac519b4f4042c"
INFO: Analysed target //:echo (12 packages loaded, 206 targets configured).
INFO: Found 1 target...
ERROR: /private/var/tmp/_bazel_samuel/82ad9d1260b40bf0bd586e86a97b7568/external/muduo/muduo/net/BUILD.bazel:1:1: C++ compilation of rule '@muduo//muduo/net:net' failed (Exit 1) wrapped_clang failed: error executing command external/local_config_cc/wrapped_clang '-D_FORTIFY_SOURCE=1' -fstack-protector -fcolor-diagnostics -Wall -Wthread-safety -Wself-assign -fno-omit-frame-pointer -O0 -DDEBUG '-std=c++11' -iquote ... (remaining 21 argument(s) skipped)

Use --sandbox_debug to see verbose messages from the sandbox
In file included from external/muduo/muduo/net/InetAddress.cc:11:
In file included from external/muduo/muduo/base/Logging.h:10:
external/muduo/muduo/base/Timestamp.h:12:10: fatal error: 'boost/operators.hpp' file not found
#include <boost/operators.hpp>
^~~~~~~~~~~~~~~~~~~~~
1 error generated.
Target //:echo failed to build
Use --verbose_failures to see the command lines of failed build steps.
INFO: Elapsed time: 9.057s, Critical Path: 0.54s
INFO: 0 processes.
FAILED: Build did NOT complete successfully

我的macos 上是安装了boost的。
samuel@bazel$ brew info boost
boost: stable 1.67.0 (bottled), HEAD
Collection of portable C++ source libraries
https://www.boost.org/
Not installed
From: https://mirrors.aliyun.com/homebrew/homebrew-core.git/Formula/boost.rb
==> Dependencies
Optional: icu4c ✔
==> Options
--with-icu4c
Build regexp engine with icu support
--without-single
Disable building single-threading variant
--without-static
Disable building static library variant
--HEAD
Install HEAD version
==> Caveats
Building of Boost.Log is disabled because it requires newer GCC or Clang.
==> Analytics
install: 67,653 (30d), 163,931 (90d), 660,447 (365d)
install_on_request: 22,428 (30d), 52,303 (90d), 199,309 (365d)
build_error: 0 (30d)

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