Question

我使用Python开发服务器组件。

我想确定系统要求：

MIN_CPU_COUNT
MIN_RAM
...

有没有办法（可能在setup.py中）定义这样的东西？

我的软件至少需要N个CPU和M RAM？

为什么呢？因为我们过去遇到了麻烦，因为运营商将服务器组件移到功能较弱的服务器上，我们无法确保服务级别协议。

Answer 1

我是这样实现的。

欢迎反馈

public void recordSnapshot(Context context)
    {
        TinyDB settings = new TinyDB(context);
        int boot_id = settings.getInt(AppPreferences.BOOT_ID);
        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo info = cm.getActiveNetworkInfo();
        int networkType = NetworkState.GetNetworkState(context, info, "DataUsageRecorder"); // wifi, data, data roaming

        // Get all apps
        PackageManager pm = context.getPackageManager();
        for (ApplicationInfo app : pm.getInstalledApplications(0))
        {

            String androidOS = Build.VERSION.RELEASE;
            int currentapiVersion = android.os.Build.VERSION.SDK_INT;
            long tx = 0;
            long rx = 0;
            int uid = app.uid;


            if(currentapiVersion <= Build.VERSION_CODES.JELLY_BEAN_MR2)
            {

                File dir = new File("/proc/uid_stat/");
                String[] children = dir.list();
                List<Integer> uids = new ArrayList<Integer>();

                for (int i = 0; i < children.length; i++) {
                    uid = Integer.parseInt(children[i]);
                    String uidString = String.valueOf(uid);
                    File uidFileDir = new File("/proc/uid_stat/" + uidString);
                    File uidActualFile = new File(uidFileDir, "tcp_rcv");
                    StringBuilder text = new StringBuilder();

                    try {
                        BufferedReader br = new BufferedReader(new FileReader(uidActualFile));
                        String line;

                        while ((line = br.readLine()) != null) {
                            Log.d(String.valueOf(uid), line);//this returns the amount of data received for the particular uid
                            rx = Long.parseLong(String.valueOf(uid));
                            //text.append(line);

                            //text.append('\n');
                        }
                    } catch (IOException e) {
                        //handle this
                    }

                    uids.add(uid);
                }
            }

              else
            {

                 tx = TrafficStats.getUidTxBytes(uid);
                 rx = TrafficStats.getUidRxBytes(uid);
            }




            if ((tx == 0 || rx == 0))
            {
                // Skip inactive items
                continue;
            }
            else if (Globals.DEBUG && (tx < DEBUG_5MB && rx < DEBUG_5MB)) {
                // Let's skip all the BS for quick testing
                continue;
            }


            // Get package name
            String package_name;
            try {
                CharSequence name = pm.getApplicationLabel(app);
                package_name = name != null ? name.toString() : "";
            } catch (Exception e) {
                e.printStackTrace();
                package_name = "";
            }

            AppUsage totals;
            AppUsage appUsage;

            // Get current data entry for app
            //appUsage = appUsageDao.queryBuilder().where(AppUsageDao.Properties.App_uid.eq(uid), AppUsageDao.Properties.Type.eq(networkType), AppUsageDao.Properties.Boot_id.eq(boot_id)).limit(1).unique();

            // Get last recorded totals since device boot
            totals = appUsageDao.queryBuilder().where(AppUsageDao.Properties.App_uid.eq(uid), AppUsageDao.Properties.Type.eq(NetworkState.ALL), AppUsageDao.Properties.Boot_id.eq(boot_id)).limit(1).unique();

            long tx_diff = tx;
            long rx_diff = rx;

            if (totals != null)
            {
                // Get difference, and update
                tx_diff -= totals.getTx();
                rx_diff -= totals.getRx();

                totals.setTx(tx);
                totals.setRx(rx);
            }
            else
            {
                // add new master
                totals = new AppUsage(null, new Date(), uid, package_name, NetworkState.ALL, tx_diff, rx_diff, 0, 0, boot_id);
            }

            // add new app
            appUsage = new AppUsage(null, new Date(), uid, package_name, networkType, tx_diff, rx_diff, 0, 0, boot_id);


         /*if (appUsage == null)
         {
            // Create new
            appUsage = new AppUsage(null, new Date(), uid, package_name, networkType, tx, rx, 0, 0, boot_id);
         }
         else
         {
            // Update
            appUsage.setTx(tx);
            appUsage.setRx(rx);
         }*/

            try {
                // master
                appUsageDao.insertOrReplace(totals);
            } catch (DaoException e) {
                e.printStackTrace();
            }

            try {
                appUsageDao.insertOrReplace(appUsage);
            } catch (DaoException e) {
                e.printStackTrace();
            }

            //apps.put(app.uid, new DataUsageItem(app.uid, app.packageName, pm.getApplicationLabel(app).toString()));
        }
    }

指甲系统要求：MIN_CPU_COUNT，MIN_RAM

1 个答案: