109 lines
2.6 KiB
Cython
Executable File
109 lines
2.6 KiB
Cython
Executable File
# distutils: language = c++
|
|
# cython: language_level = 3
|
|
from libcpp cimport bool
|
|
from libcpp.string cimport string
|
|
from common.params_pxd cimport Params as c_Params, ParamKeyType as c_ParamKeyType
|
|
|
|
import os
|
|
import threading
|
|
from common.basedir import BASEDIR
|
|
|
|
|
|
cdef class ParamKeyType:
|
|
PERSISTENT = c_ParamKeyType.PERSISTENT
|
|
CLEAR_ON_MANAGER_START = c_ParamKeyType.CLEAR_ON_MANAGER_START
|
|
CLEAR_ON_PANDA_DISCONNECT = c_ParamKeyType.CLEAR_ON_PANDA_DISCONNECT
|
|
CLEAR_ON_IGNITION = c_ParamKeyType.CLEAR_ON_IGNITION
|
|
ALL = c_ParamKeyType.ALL
|
|
|
|
def ensure_bytes(v):
|
|
if isinstance(v, str):
|
|
return v.encode()
|
|
else:
|
|
return v
|
|
|
|
|
|
class UnknownKeyName(Exception):
|
|
pass
|
|
|
|
cdef class Params:
|
|
cdef c_Params* p
|
|
|
|
def __cinit__(self, d=None, bool persistent_params=False):
|
|
if d is None:
|
|
self.p = new c_Params(persistent_params)
|
|
else:
|
|
self.p = new c_Params(<string>d.encode())
|
|
|
|
def __dealloc__(self):
|
|
del self.p
|
|
|
|
def clear_all(self, tx_type=None):
|
|
if tx_type is None:
|
|
tx_type = ParamKeyType.ALL
|
|
|
|
self.p.clearAll(tx_type)
|
|
|
|
def check_key(self, key):
|
|
key = ensure_bytes(key)
|
|
|
|
if not self.p.checkKey(key):
|
|
raise UnknownKeyName(key)
|
|
|
|
return key
|
|
|
|
def get(self, key, block=False, encoding=None):
|
|
cdef string k = self.check_key(key)
|
|
cdef bool b = block
|
|
|
|
cdef string val
|
|
with nogil:
|
|
val = self.p.get(k, b)
|
|
|
|
if val == b"":
|
|
if block:
|
|
# If we got no value while running in blocked mode
|
|
# it means we got an interrupt while waiting
|
|
raise KeyboardInterrupt
|
|
else:
|
|
return None
|
|
|
|
if encoding is not None:
|
|
return val.decode(encoding)
|
|
else:
|
|
return val
|
|
|
|
def get_bool(self, key):
|
|
cdef string k = self.check_key(key)
|
|
return self.p.getBool(k)
|
|
|
|
def put(self, key, dat):
|
|
"""
|
|
Warning: This function blocks until the param is written to disk!
|
|
In very rare cases this can take over a second, and your code will hang.
|
|
Use the put_nonblocking helper function in time sensitive code, but
|
|
in general try to avoid writing params as much as possible.
|
|
"""
|
|
cdef string k = self.check_key(key)
|
|
dat = ensure_bytes(dat)
|
|
self.p.put(k, dat)
|
|
|
|
def put_bool(self, key, val):
|
|
cdef string k = self.check_key(key)
|
|
self.p.putBool(k, val)
|
|
|
|
def delete(self, key):
|
|
cdef string k = self.check_key(key)
|
|
self.p.remove(k)
|
|
|
|
|
|
def put_nonblocking(key, val, d=None):
|
|
def f(key, val):
|
|
params = Params(d)
|
|
cdef string k = ensure_bytes(key)
|
|
params.put(k, val)
|
|
|
|
t = threading.Thread(target=f, args=(key, val))
|
|
t.start()
|
|
return t
|