Page MenuHomec4science
Files F102424216

yocto_realtimeclock.py
No OneTemporary
Actions

File Metadata

Created
Thu, Feb 20, 14:18

yocto_realtimeclock.py
View Options

#*********************************************************************
#*
#* $Id: yocto_realtimeclock.py 23243 2016-02-23 14:13:12Z seb $
#*
#* Implements yFindRealTimeClock(), the high-level API for RealTimeClock functions
#*
#* - - - - - - - - - License information: - - - - - - - - -
#*
#* Copyright (C) 2011 and beyond by Yoctopuce Sarl, Switzerland.
#*
#* Yoctopuce Sarl (hereafter Licensor) grants to you a perpetual
#* non-exclusive license to use, modify, copy and integrate this
#* file into your software for the sole purpose of interfacing
#* with Yoctopuce products.
#*
#* You may reproduce and distribute copies of this file in
#* source or object form, as long as the sole purpose of this
#* code is to interface with Yoctopuce products. You must retain
#* this notice in the distributed source file.
#*
#* You should refer to Yoctopuce General Terms and Conditions
#* for additional information regarding your rights and
#* obligations.
#*
#* THE SOFTWARE AND DOCUMENTATION ARE PROVIDED 'AS IS' WITHOUT
#* WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING
#* WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, FITNESS
#* FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO
#* EVENT SHALL LICENSOR BE LIABLE FOR ANY INCIDENTAL, SPECIAL,
#* INDIRECT OR CONSEQUENTIAL DAMAGES, LOST PROFITS OR LOST DATA,
#* COST OF PROCUREMENT OF SUBSTITUTE GOODS, TECHNOLOGY OR
#* SERVICES, ANY CLAIMS BY THIRD PARTIES (INCLUDING BUT NOT
#* LIMITED TO ANY DEFENSE THEREOF), ANY CLAIMS FOR INDEMNITY OR
#* CONTRIBUTION, OR OTHER SIMILAR COSTS, WHETHER ASSERTED ON THE
#* BASIS OF CONTRACT, TORT (INCLUDING NEGLIGENCE), BREACH OF
#* WARRANTY, OR OTHERWISE.
#*
#*********************************************************************/
__docformat__ = 'restructuredtext en'
from yocto_api import *
#--- (YRealTimeClock class start)
#noinspection PyProtectedMember
class YRealTimeClock(YFunction):
"""
The RealTimeClock function maintains and provides current date and time, even accross power cut
lasting several days. It is the base for automated wake-up functions provided by the WakeUpScheduler.
The current time may represent a local time as well as an UTC time, but no automatic time change
will occur to account for daylight saving time.
"""
#--- (end of YRealTimeClock class start)
#--- (YRealTimeClock return codes)
#--- (end of YRealTimeClock return codes)
#--- (YRealTimeClock dlldef)
#--- (end of YRealTimeClock dlldef)
#--- (YRealTimeClock definitions)
UNIXTIME_INVALID = YAPI.INVALID_LONG
DATETIME_INVALID = YAPI.INVALID_STRING
UTCOFFSET_INVALID = YAPI.INVALID_INT
TIMESET_FALSE = 0
TIMESET_TRUE = 1
TIMESET_INVALID = -1
#--- (end of YRealTimeClock definitions)
def __init__(self, func):
super(YRealTimeClock, self).__init__(func)
self._className = 'RealTimeClock'
#--- (YRealTimeClock attributes)
self._callback = None
self._unixTime = YRealTimeClock.UNIXTIME_INVALID
self._dateTime = YRealTimeClock.DATETIME_INVALID
self._utcOffset = YRealTimeClock.UTCOFFSET_INVALID
self._timeSet = YRealTimeClock.TIMESET_INVALID
#--- (end of YRealTimeClock attributes)
#--- (YRealTimeClock implementation)
def _parseAttr(self, member):
if member.name == "unixTime":
self._unixTime = member.ivalue
return 1
if member.name == "dateTime":
self._dateTime = member.svalue
return 1
if member.name == "utcOffset":
self._utcOffset = member.ivalue
return 1
if member.name == "timeSet":
self._timeSet = member.ivalue
return 1
super(YRealTimeClock, self)._parseAttr(member)
def get_unixTime(self):
"""
Returns the current time in Unix format (number of elapsed seconds since Jan 1st, 1970).
@return an integer corresponding to the current time in Unix format (number of elapsed seconds
since Jan 1st, 1970)
On failure, throws an exception or returns YRealTimeClock.UNIXTIME_INVALID.
"""
if self._cacheExpiration <= YAPI.GetTickCount():
if self.load(YAPI.DefaultCacheValidity) != YAPI.SUCCESS:
return YRealTimeClock.UNIXTIME_INVALID
return self._unixTime
def set_unixTime(self, newval):
"""
Changes the current time. Time is specifid in Unix format (number of elapsed seconds since Jan 1st, 1970).
@param newval : an integer corresponding to the current time
@return YAPI.SUCCESS if the call succeeds.
On failure, throws an exception or returns a negative error code.
"""
rest_val = str(newval)
return self._setAttr("unixTime", rest_val)
def get_dateTime(self):
"""
Returns the current time in the form "YYYY/MM/DD hh:mm:ss".
@return a string corresponding to the current time in the form "YYYY/MM/DD hh:mm:ss"
On failure, throws an exception or returns YRealTimeClock.DATETIME_INVALID.
"""
if self._cacheExpiration <= YAPI.GetTickCount():
if self.load(YAPI.DefaultCacheValidity) != YAPI.SUCCESS:
return YRealTimeClock.DATETIME_INVALID
return self._dateTime
def get_utcOffset(self):
"""
Returns the number of seconds between current time and UTC time (time zone).
@return an integer corresponding to the number of seconds between current time and UTC time (time zone)
On failure, throws an exception or returns YRealTimeClock.UTCOFFSET_INVALID.
"""
if self._cacheExpiration <= YAPI.GetTickCount():
if self.load(YAPI.DefaultCacheValidity) != YAPI.SUCCESS:
return YRealTimeClock.UTCOFFSET_INVALID
return self._utcOffset
def set_utcOffset(self, newval):
"""
Changes the number of seconds between current time and UTC time (time zone).
The timezone is automatically rounded to the nearest multiple of 15 minutes.
@param newval : an integer corresponding to the number of seconds between current time and UTC time (time zone)
@return YAPI.SUCCESS if the call succeeds.
On failure, throws an exception or returns a negative error code.
"""
rest_val = str(newval)
return self._setAttr("utcOffset", rest_val)
def get_timeSet(self):
"""
Returns true if the clock has been set, and false otherwise.
@return either YRealTimeClock.TIMESET_FALSE or YRealTimeClock.TIMESET_TRUE, according to true if
the clock has been set, and false otherwise
On failure, throws an exception or returns YRealTimeClock.TIMESET_INVALID.
"""
if self._cacheExpiration <= YAPI.GetTickCount():
if self.load(YAPI.DefaultCacheValidity) != YAPI.SUCCESS:
return YRealTimeClock.TIMESET_INVALID
return self._timeSet
@staticmethod
def FindRealTimeClock(func):
"""
Retrieves a clock for a given identifier.
The identifier can be specified using several formats:
<ul>
<li>FunctionLogicalName</li>
<li>ModuleSerialNumber.FunctionIdentifier</li>
<li>ModuleSerialNumber.FunctionLogicalName</li>
<li>ModuleLogicalName.FunctionIdentifier</li>
<li>ModuleLogicalName.FunctionLogicalName</li>
</ul>
This function does not require that the clock is online at the time
it is invoked. The returned object is nevertheless valid.
Use the method YRealTimeClock.isOnline() to test if the clock is
indeed online at a given time. In case of ambiguity when looking for
a clock by logical name, no error is notified: the first instance
found is returned. The search is performed first by hardware name,
then by logical name.
@param func : a string that uniquely characterizes the clock
@return a YRealTimeClock object allowing you to drive the clock.
"""
# obj
obj = YFunction._FindFromCache("RealTimeClock", func)
if obj is None:
obj = YRealTimeClock(func)
YFunction._AddToCache("RealTimeClock", func, obj)
return obj
def nextRealTimeClock(self):
"""
Continues the enumeration of clocks started using yFirstRealTimeClock().
@return a pointer to a YRealTimeClock object, corresponding to
a clock currently online, or a None pointer
if there are no more clocks to enumerate.
"""
hwidRef = YRefParam()
if YAPI.YISERR(self._nextFunction(hwidRef)):
return None
if hwidRef.value == "":
return None
return YRealTimeClock.FindRealTimeClock(hwidRef.value)
#--- (end of YRealTimeClock implementation)
#--- (RealTimeClock functions)
@staticmethod
def FirstRealTimeClock():
"""
Starts the enumeration of clocks currently accessible.
Use the method YRealTimeClock.nextRealTimeClock() to iterate on
next clocks.
@return a pointer to a YRealTimeClock object, corresponding to
the first clock currently online, or a None pointer
if there are none.
"""
devRef = YRefParam()
neededsizeRef = YRefParam()
serialRef = YRefParam()
funcIdRef = YRefParam()
funcNameRef = YRefParam()
funcValRef = YRefParam()
errmsgRef = YRefParam()
size = YAPI.C_INTSIZE
#noinspection PyTypeChecker,PyCallingNonCallable
p = (ctypes.c_int * 1)()
err = YAPI.apiGetFunctionsByClass("RealTimeClock", 0, p, size, neededsizeRef, errmsgRef)
if YAPI.YISERR(err) or not neededsizeRef.value:
return None
if YAPI.YISERR(
YAPI.yapiGetFunctionInfo(p[0], devRef, serialRef, funcIdRef, funcNameRef, funcValRef, errmsgRef)):
return None
return YRealTimeClock.FindRealTimeClock(serialRef.value + "." + funcIdRef.value)
#--- (end of RealTimeClock functions)

Event Timeline

c4science · Help