client.cpp

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 *
 * Copyright (C) 2022 NETINT Technologies
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/*!*****************************************************************************
 *  \file   client.cpp
 *
 *  \brief  client test for NETINT video processing Android service
 *
 ******************************************************************************/
 
#include <android/hardware/nidec/1.0/INidec.h>
#include <hidl/Status.h>
#include <hidl/LegacySupport.h>
#include <utils/misc.h>
#include <hidl/HidlSupport.h>
#include <stdio.h>
 
#include <cutils/properties.h>
#include <cutils/ashmem.h>
#include <sys/mman.h>
 
using android::sp;
using android::hardware::hidl_handle;
using android::hardware::nidec::V1_0::INidec;
 
#define UNUSED(x) (void)(x)
 
#define CODERS_SHM_NAME "NI_SHM_CODERS"
#define STR_BUFFER_LEN 32
 
using namespace std;
 
int main()
{
    int ret;
 
    UNUSED(ret);
 
    string param = CODERS_SHM_NAME;
    int32_t shm_fd = 0;
 
    android::sp<INidec> service = INidec::getService();
    if (service == nullptr)
    {
        printf("Failed to get service\n");
        return -1;
    }
 
    service->GetAppFlag(param, [&](int32_t ret, const hidl_handle &handle) {
        printf("GetAppFlag: ret %d\n", ret);
        if (ret > 0)
        {
            shm_fd = dup(handle->data[0]);
            printf("vendor:GetAppFlag shm_fd:%d\n", shm_fd);
        }
    });
 
    if (shm_fd <= 0)
    {
        shm_fd = ashmem_create_region(CODERS_SHM_NAME, sizeof(int32_t));
        if (shm_fd >= 0)
        {
            native_handle_t *handle = native_handle_create(1, 0);
            handle->data[0] = shm_fd;
            service->SetAppFlag(param, handle);
        }
        printf("Create shm fd %d\n", shm_fd);
        int32_t *shm_data = (int32_t *)mmap(
            0, sizeof(int32_t), PROT_READ | PROT_WRITE, MAP_SHARED, shm_fd, 0);
        if (MAP_FAILED == shm_data)
        {
            printf("Error mmap shm_data ..\n");
        }
        *shm_data = 100;
        printf("set shm data %d\n", *shm_data);
 
        //close(shm_fd);
 
        shm_data = (int32_t *)mmap(0, sizeof(int32_t), PROT_READ | PROT_WRITE,
                                   MAP_SHARED, shm_fd, 0);
        if (MAP_FAILED == shm_data)
        {
            printf("Error mmap shm_data ..\n");
        }
        printf("get shm data %d\n", *shm_data);
 
    } else
    {
        printf("Get shm fd %d\n", shm_fd);
        int32_t *shm_data = (int32_t *)mmap(
            0, sizeof(int32_t), PROT_READ | PROT_WRITE, MAP_SHARED, shm_fd, 0);
        if (MAP_FAILED == shm_data)
        {
            printf("mmap failed errno = %d\n", errno);
        }
        printf("get shm data %d\n", *shm_data);
    }
 
    close(shm_fd);
 
    return 0;
}