Спасибо, что ответили. Итак, сейчас я хочу протестировать виртуальное устройство Android (Pixel C API 28) и создать новый проект с кодом C ++ в Android -Studio.
Чтобы избавиться от cppzmq Сейчас я использую только libzmq.
Я собрал libzmq со следующим сценарием:
#!/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
После копирования встроенной библиотеки в jniFolder, мой каталог выглядит так:
src/main/jniLibs/
└── x86_64
├── bin
│ └── curve_keygen
├── include
│ ├── zmq.h
│ └── zmq_utils.h
└── lib
├── libzmq.a
├── libzmq.la
├── libzmq.so
└── pkgconfig
└── libzmq.pc
Я добавил это в 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;
}
Мой CMakelist.txt выглядит так this:
# 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.
)
Нужно ли создавать файлы Android.mk и Application.mk рядом с моим jniLibs-Folder? Кто-нибудь пробовал использовать libzmq в нативном коде без jzmq или Jeromq?
Сборка залипаний при связывании общего native-lib:
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