tornado硬件管理系统-硬件信息的获取（3）

字段分析：

 monitor.py

#-*- coding: utf-8 -*-
import psutil
import time,datetime
from pprint import pprint

#定义一个专门用于获取系统信息的类
class Moniter(object):
    #转换方法
    def byte_to_gb(self,data,key=""):
        if key=="percent":
            return data
        else:
            return round(data/(1024**3),2)
    def cpu(self):
        data = dict(
            percent_avg=psutil.cpu_percent(interval=0, percpu=False),
            percent_per = psutil.cpu_percent(interval=0, percpu=True),
            num_p = psutil.cpu_count(logical=False),
            num_l = psutil.cpu_count(logical=True),
        )
        return data
    def men(self):
        info = psutil.virtual_memory()
        data = dict(
            total = self.byte_to_gb(info.total),
            used = self.byte_to_gb(info.used),
            free = self.byte_to_gb(info.free),
            percent = self.byte_to_gb(info.percent),
        )
        return data
    def swap(self):
        info = psutil.swap_memory()
        data = dict(
            total = self.byte_to_gb(info.total),
            used = self.byte_to_gb(info.used),
            free = self.byte_to_gb(info.free),
            percent = self.byte_to_gb(info.percent)
        )
        return data

    #获取磁盘信息
    def disk(self):
        info = psutil.disk_partitions()
        data =[
            dict(
                device = v.device,
                mountpoint = v.mountpoint,
                fstype = v.fstype,
                opts = v.opts,
                used = {
                    k: self.byte_to_gb(v,k)
                    for k,v in psutil.disk_usage(v.mountpoint)._asdict().items()
                }
            )
            for v in info
        ]
        return data
    #获取网络信息
    def net(self):
        addrs = psutil.net_if_addrs()
        addrs_info = {
            k:[
                dict(
                    family = val.family.name,
                    address = val.address,
                    netmask = val.netmask,
                    broadcast = val.broadcast,
                )
                for val in v if val.family.name == "AF_INET"
            ][0]
            for k,v in addrs.items()
        }
        #收集io的输入输出信息
        io = psutil.net_io_counters(pernic=True)
        data = [
            dict(
                name = k,
                bytes_sent = v.bytes_sent,
                bytes_recv = v.bytes_recv,
                packets_sent = v.packets_sent,
                packets_recv = v.packets_recv,
                **addrs_info[k],
            )
            for k,v in io.items()
        ]
        return data

    #时间戳转换
    def td(self,tm):
        dt = datetime.datetime.fromtimestamp(tm)
        return dt.strftime("%Y-%m-%d %H:%M:%S")
    #获取开机时间
    def lastest_start_time(self):
        return self.td(psutil.boot_time())
    #登录用户
    def logined_user(self):
        users = psutil.users()
        data =[
            dict(
                name=v.name,
                terminal=v.terminal,
                host=v.host,
                started=self.td(v.started),
                pid=v.pid
            )
            for v in users
        ]
        return data

if __name__ == "__main__":
    m = Moniter()
    pprint(m.logined_user())
    # for i in range(10):
    #     print(m.cpu())
    #     time.sleep(1)