如何使Android使用ZeroMQ libzmq?

问题描述 投票:1回答:2

我尝试将程序从Linux桌面移植到Android。它使用c ++中的libzmq

我想在没有zmq.hppjerozmq的应用程序本机代码中使用jzmq(ZeroMQ的Cpp绑定)。>

我已使用此脚本为4弓架构建了libzmq

export PATH=/home/hmi/Android/arm-26-toolchain-clang:$PATH

rm -r /tmp/zeromq-android
cd /tmp/
#git clone https://github.com/zeromq/libzmq.git
cd libzmq/

############################################################################
# arm-linux-androideabi
export OUTPUT_DIR=/tmp/zeromq-android/arm-linux-androideabi
./autogen.sh
./configure --enable-static                     \
            --disable-shared                     \
            --host=arm-linux-androideabi          \
            --prefix=$OUTPUT_DIR                   \
              LDFLAGS="-L$OUTPUT_DIR/lib"           \
              CPPFLAGS="-fPIC -I$OUTPUT_DIR/include" \
              LIBS="-lgcc"
make -j4
make install

############################################################################
# armv7a-linux-androideabi
export OUTPUT_DIR=/tmp/zeromq-android/armeabi-v7a
./autogen.sh
./configure --enable-static                     \
            --disable-shared                     \
            --host=armv7a-linux-androideabi       \
            --prefix=$OUTPUT_DIR                   \
              LDFLAGS="-L$OUTPUT_DIR/lib"           \
              CPPFLAGS="-fPIC -I$OUTPUT_DIR/include" \
              LIBS="-lgcc"
make -j4
make install

############################################################################   
# aarch64-linux-android
export OUTPUT_DIR=/tmp/zeromq-android/arm64-v8a
./autogen.sh
./configure --enable-static                     \
            --disable-shared                     \
            --host=aarch64-linux-android          \
            --prefix=$OUTPUT_DIR                   \
              LDFLAGS="-L$OUTPUT_DIR/lib"           \
              CPPFLAGS="-fPIC -I$OUTPUT_DIR/include" \
              LIBS="-lgcc"
make -j4
make install

############################################################################   
# i686-linux-android
export OUTPUT_DIR=/tmp/zeromq-android/x86
./autogen.sh
./configure --enable-static                     \
            --disable-shared                     \
            --host=i686-linux-android             \
            --prefix=$OUTPUT_DIR                   \
              LDFLAGS="-L$OUTPUT_DIR/lib"           \
              CPPFLAGS="-fPIC -I$OUTPUT_DIR/include" \
              LIBS="-lgcc"
make -j4
make install

############################################################################   
# x86_64-linux-android
export OUTPUT_DIR=/tmp/zeromq-android/x86_64
./autogen.sh
./configure --enable-static                     \
            --disable-shared                     \
            --host=x86_64-linux-android           \
            --prefix=$OUTPUT_DIR                   \
              LDFLAGS="-L$OUTPUT_DIR/lib"           \
              CPPFLAGS="-fPIC -I$OUTPUT_DIR/include" \
              LIBS="-lgcc"
make -j4
make install

cd /tmp/zeromq-android/
mkdir all
cd all

for i in             \
        "armeabi-v7a" \
        "arm64-v8a"    \
        "x86"           \
        "x86_64"
     do
    mkdir ${i}
    cp -r /tmp/zeromq-android/$i/lib/* ./$i/
done





############################################################################   
## jzmq
#export OUTPUT_DIR=/tmp/zeromq-android-arm-linux-androideabi
#
#cd /tmp/
#git clone https://github.com/zeromq/jzmq.git
#cd jzmq/jzmq-jni/
#./autogen.sh
#./configure --host=arm-linux-androideabi          \
#            --prefix=$OUTPUT_DIR                   \
#            --with-zeromq=$OUTPUT_DIR               \
#              CPPFLAGS="-fPIC -I$OUTPUT_DIR/include" \
#              LDFLAGS="-L$OUTPUT_DIR/lib"             \
#            --disable-version                          \
#              LIBS="-lpthread -lrt"
#make
#make install}

有可能吗?

当链接native-lib.cpp静态和libzmq静态时,构建正常,但是卡在::>

Runtime.error.loadingLib(native-lib)

在链接到native-lib共享库和libzmq static时,构建卡在:

/home/hmi/barepo/AndroidCppZmq/app/src/main/cpp/include/zmq.hpp:766: error: undefined reference to 'zmq_ctx_destroy'

我已将[libzmq]中的CMakeList.txtadd_library(zmq STATIC .../libzmq.a)相加

我尝试将程序从Linux桌面移植到Android。它在c ++中使用libzmq。我想在没有jerozmq或jzmq的应用程序本机代码中使用zmq.hpp(ZeroMQ的Cpp绑定)。我...

欢迎来到零禅宗之地:


如果从未使用过ZeroMQ,在这里可以先研究一下"ZeroMQ Principles in less than Five Seconds",然后再探讨更多细节


鉴于报告的错误是:

error: undefined reference to 'zmq_ctx_destroy'

这让我相信,您可能混合了版本。

Git-URL导致

“ C ++中的ZeroMQ核心引擎,实现ZMTP / 3.1”

在ZeroMQ本机API中,版本3.1确实没有zmq_ctx_destroy()函数。[可以决定是否向前跳转以使用version 4.1,还是破解zmq_ctx_term()调用以实际调用v3.1 API的当前替代品int zmq_term( void *context ),但是正确的Android端口应该可以使用干净的API实现,不应该吗?

感谢您的回复。因此,现在我想使用Android虚拟设备(Pixel C API 28)进行测试,并在Android Studio中使用c ++代码创建一个新项目。

要摆脱cppzmq,我现在仅使用

libzmq

。我用以下脚本构建了[[libzmq
#!/bin/bash OLDPATH=$PATH rm -r /tmp/zeromq-android cd /tmp/ git clone https://github.com/zeromq/libzmq.git cd libzmq/ export NDK=$HOME/initEnvV0.0/AndroidSdk/ndk/21.0.6113669 export TOOLCHAIN=$NDK/toolchains/llvm/prebuilt/linux-x86_64 # Only choose one of these, depending on your device... #export TARGET=aarch64-linux-android #export TARGET=armv7a-linux-androideabi #export TARGET=i686-linux-android export TARGET=x86_64-linux-android # Set this to your minSdkVersion. export API=28 # Configure and build. export AR=$TOOLCHAIN/bin/$TARGET-ar export AS=$TOOLCHAIN/bin/$TARGET-as export CC=$TOOLCHAIN/bin/$TARGET$API-clang export CXX=$TOOLCHAIN/bin/$TARGET$API-clang++ export LD=$TOOLCHAIN/bin/$TARGET-ld export RANLIB=$TOOLCHAIN/bin/$TARGET-ranlib export STRIP=$TOOLCHAIN/bin/$TARGET-strip export OUTPUT_DIR=/tmp/zeromq-android/$TARGET ./autogen.sh #./configure --host $TARGET ./configure --enable-static \ --disable-shared \ --host=$TARGET \ --prefix=$OUTPUT_DIR LDFLAGS="-L$OUTPUT_DIR/lib" \ CPPFLAGS="-fPIC -I$OUTPUT_DIR/include" \ LIBS="-lgcc" # ^ was missing make make install 将生成的库复制到jniFolder后,我的目录如下所示:
src/main/jniLibs/
└── x86_64
    ├── bin
    │   └── curve_keygen
    ├── include
    │   ├── zmq.h
    │   └── zmq_utils.h
    └── lib
        ├── libzmq.a
        ├── libzmq.la
        ├── libzmq.so
        └── pkgconfig
            └── libzmq.pc

我已将此添加到

native-lib.cpp

// libzmq #include <zmq.h> #include <stdio.h> #include <unistd.h> #include <string.h> #include <assert.h> int testlibzmq (void) { // Socket to talk to clients void *context = zmq_ctx_new (); void *responder = zmq_socket (context, ZMQ_REP); int rc = zmq_bind (responder, "tcp://*:5555"); assert (rc == 0); char buffer [10]; zmq_recv (responder, buffer, 10, 0); printf ("Received Hello\n"); sleep (1); // Do some 'work' zmq_send (responder, "World", 5, 0); return 0; }

我的CMakelist.txt看起来像这样:
# For more information about using CMake with Android Studio, read the
# documentation: https://d.android.com/studio/projects/add-native-code.html

# Sets the minimum version of CMake required to build the native library.

cmake_minimum_required(VERSION 3.4.1)

# Creates and names a library, sets it as either STATIC
# or SHARED, and provides the relative paths to its source code.
# You can define multiple libraries, and CMake builds them for you.
# Gradle automatically packages shared libraries with your APK.

include_directories(
        /home/hmi/barepo/AndroidCppZmq/app/src/main/jniLibs/x86_64/include
        )

add_library(           zmq STATIC     IMPORTED )
set_target_properties( zmq PROPERTIES IMPORTED_LOCATION /home/hmi/barepo/AndroidCppZmq/app/src/main/jniLibs/x86_64/lib/libzmq.a )
set_target_properties( zmq PROPERTIES INCLUDE_DIRECTORIES /home/hmi/barepo/AndroidCppZmq/app/src/main/jniLibs/x86_64/include )

add_library(    native-lib                 # Sets the name of the library.
                           SHARED          # Sets the library as a shared library.
                           native-lib.cpp  # Provides a relative path to your source file(s).
                           )

# Searches for a specified prebuilt library and stores the path as a
# variable. Because CMake includes system libraries in the search path by
# default, you only need to specify the name of the public NDK library
# you want to add. CMake verifies that the library exists before
# completing its build.

find_library(     log-lib                  # Sets the name of the path variable.
                           log             # Specifies the name of the NDK library that
                           )               #           you want CMake to locate.

# Specifies libraries CMake should link to your target library. You
# can link multiple libraries, such as libraries you define in this
# build script, prebuilt third-party libraries, or system libraries.

target_link_libraries( native-lib          # Specifies the target library.
                              zmq          # Links the target library to the log library
                              ${log-lib}   #           included in the NDK.
                              )

我必须在我的Android.mk旁边生成一个Application.mkjniLibs-Folder文件吗?是否有人尝试在没有libzmqjzmq的情况下以本机代码使用Jeromq

链接共享native-lib时遇到问题:

Entering directory `/home/hmi/barepo/AndroidCppZmq/app/.cxx/cmake/debug/x86_64' [1/1] Linking CXX shared library /home/hmi/barepo/AndroidCppZmq/app/build/intermediates/cmake/debug/obj/x86_64/libnative-lib.so FAILED: /home/hmi/barepo/AndroidCppZmq/app/build/intermediates/cmake/debug/obj/x86_64/libnative-lib.so

android c++ cross-compiling zeromq
2个回答
0
投票
欢迎来到零禅宗之地:

0
投票
感谢您的回复。因此,现在我想使用Android虚拟设备(Pixel C API 28)进行测试,并在Android Studio中使用c ++代码创建一个新项目。

要摆脱cppzmq,我现在仅使用

libzmq

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