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'''
Author: your name
Date: 2021-06-28 16:43:12
LastEditTime: 2021-06-29 19:12:59
LastEditors: Please set LastEditors
Description: In User Settings Edit
FilePath: \ewebengine\tools\evm_monitor\database.py
'''
from datetime import datetime
from sqlalchemy import create_engine
from sqlalchemy import Column, Integer, String, Float
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker
engine = create_engine('sqlite:///monitor.db?check_same_thread=False', echo=True)
Base = declarative_base()
def get_current_datetime():
return datetime.now().strftime("%Y-%m-%d %H:%M:%S")
class Watch(Base):
__tablename__ = 'monitor_watch'
id = Column(Integer, primary_key=True, autoincrement=True)
imei = Column(String)
create_at = Column(String, default=get_current_datetime)
class Request(Base):
__tablename__ = 'monitor_request'
id = Column(Integer, primary_key=True, autoincrement=True)
watch = Column(Integer) # 手表ID
host = Column(String)
path = Column(String)
protocol = Column(String)
create_at = Column(String, default=get_current_datetime)
class System(Base):
__tablename__ = 'monitor_system'
id = Column(Integer, primary_key=True, autoincrement=True)
watch = Column(Integer) # 手表ID
free_size = Column(Integer) # 单位：字节
timestamp = Column(String(50), default=get_current_datetime)
class Lvgl(Base):
__tablename__ = 'monitor_lvgl'
id = Column(Integer, primary_key=True, autoincrement=True)
watch = Column(Integer) # 手表ID
total_size = Column(Integer) # 单位：字节
free_cnt = Column(Integer)
free_size = Column(Integer)
free_biggest_size = Column(Integer)
used_cnt = Column(Integer)
used_pct = Column(Integer)
frag_pct = Column(Integer)
timestamp = Column(String(50), default=get_current_datetime)
class Evm(Base):
__tablename__ = 'monitor_evm'
id = Column(Integer, primary_key=True, autoincrement=True)
watch = Column(Integer) # 手表ID
# total_size = Column(Integer) # 单位：字节
# free_size = Column(Integer)
# gc_usage = Column(Integer)
heap_map_size = Column(Integer)
heap_total_size = Column(Integer)
heap_used_size = Column(Integer)
stack_total_size = Column(Integer)
stack_used_size = Column(Integer)
timestamp = Column(String(50), default=get_current_datetime)
class Image(Base):
__tablename__ = 'monitor_image'
id = Column(Integer, primary_key=True, autoincrement=True)
watch = Column(Integer) # 手表ID
uri = Column(String(50))
length = Column(Integer)
png_uncompressed_size = Column(Integer)
png_total_count = Column(Integer)
png_file_size = Column(Integer)
timestamp = Column(String(50), default=get_current_datetime)
Base.metadata.create_all(engine, checkfirst=True)
# engine是2.2中创建的连接
Session = sessionmaker(bind=engine)
# 创建Session类实例
session = Session()