android binder c++层-客户端(c++) 调用 服务端(c++) 例子

客户端和服务端都采用C++程序编写

sampleClient.cpp

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#include <binder/IServiceManager.h>

#include <binder/IBinder.h>

#include <binder/Parcel.h>

#include <binder/ProcessState.h>

#include <binder/IPCThreadState.h>

#include <private/binder/binder_module.h>

using namespace android;

#ifdef LOG_TAG

#undef LOG_TAG

#endif

#define LOG_TAG "sampleCallback"

#define SAMPLE_SERIVCE_DES "sample.hello"

#define FUNC_CALLFUNCTION 1

int main()

{

     sp<IServiceManager> sm = defaultServiceManager();

     sp<IBinder> ibinder = sm->getService(String16(SAMPLE_SERIVCE_DES));

      if (ibinder == NULL){

          LOGW( "Client can't find Service" );

           return -1;

     }

     Parcel _data,_reply;

      int ret = ibinder->transact(FUNC_CALLFUNCTION, _data, &_reply, 0);

     LOGD( "Client transact return %d", ret);

     ProcessState::self()->startThreadPool();

     IPCThreadState::self()->joinThreadPool();

      return 0;

}

sampleService.cpp

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#include <binder/IServiceManager.h>

#include <binder/IBinder.h>

#include <binder/Parcel.h>

#include <binder/ProcessState.h>

#include <binder/IPCThreadState.h>

using namespace android;

#ifdef LOG_TAG

#undef LOG_TAG

#endif

#define LOG_TAG "sampleService"

#define SAMPLE_SERIVCE_DES "sample.hello"

#define FUNC_CALLFUNCTION 1

class SampleService: public BBinder {

public :

     SampleService() {

          mydescriptor = String16(SAMPLE_SERIVCE_DES);

     }

     

      virtual ~SampleService() {

     }

      virtual const String16& getInterfaceDescriptor() const {

           return mydescriptor;

     }

     

protected :

     

      void callFunction() {

          LOGE( "Service callFunction-----------" );

     }

     

      virtual status_t onTransact(uint32_t code, const Parcel& data,

              Parcel* reply, uint32_t flags = 0) {

          LOGD( "Service onTransact, code = %d" , code);

           switch (code) {

           case FUNC_CALLFUNCTION:

              callFunction();

               break;

           default:

               return BBinder::onTransact(code, data, reply, flags);

          }

           return 0;

     }

private :

     String16 mydescriptor;

};

int main() {

     sp < IServiceManager > sm = defaultServiceManager();

     SampleService* samServ = new SampleService();

     status_t ret = sm->addService(String16(SAMPLE_SERIVCE_DES), samServ);

     LOGD( "Service addservice return %d", ret);

     ProcessState::self()->startThreadPool();

     IPCThreadState::self()->joinThreadPool( true);

     return 0;

}

Android.mk

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LOCAL_PATH: = $(call my-dir)

include $(CLEAR_VARS)

LOCAL_MODULE_TAGS : = eng

LOCAL_SRC_FILES: = \

       sampleClient.cpp

LOCAL_C_INCLUDES + = \

        $(LOCAL_PATH) \

LOCAL_SHARED_LIBRARIES : = \

    libcutils \

    libbinder \

    libutils \

    libhardware

LOCAL_CFLAGS : = -DRIL_SHLIB

LOCAL_MODULE: = sampleClient

include $(BUILD_EXECUTABLE)

include $(CLEAR_VARS)

LOCAL_MODULE_TAGS : = eng

LOCAL_SRC_FILES: = \

           sampleService.cpp

LOCAL_C_INCLUDES + = \

        $(LOCAL_PATH) \

LOCAL_SHARED_LIBRARIES : = \

    libcutils \

    libbinder \

    libutils \

    libhardware

LOCAL_CFLAGS : = -DRIL_SHLIB

LOCAL_MODULE: = sampleService

include $(BUILD_EXECUTABLE)

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1、新建文件夹binderSample

2、将以上三个文件放入ics-4.x\external\binderSample

3、编译，拷贝到开发环境中，chmod，然后各自运行