Page MenuHomec4science
Files F93461376

yocto_oscontrol.py
No OneTemporary
Actions

File Metadata

Created
Thu, Nov 28, 23:06

yocto_oscontrol.py
View Options

#*********************************************************************
#*
#* $Id: yocto_oscontrol.py 23243 2016-02-23 14:13:12Z seb $
#*
#* Implements yFindOsControl(), the high-level API for OsControl 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 *
#--- (YOsControl class start)
#noinspection PyProtectedMember
class YOsControl(YFunction):
"""
The OScontrol object allows some control over the operating system running a VirtualHub.
OsControl is available on the VirtualHub software only. This feature must be activated at the VirtualHub
start up with -o option.
"""
#--- (end of YOsControl class start)
#--- (YOsControl return codes)
#--- (end of YOsControl return codes)
#--- (YOsControl dlldef)
#--- (end of YOsControl dlldef)
#--- (YOsControl definitions)
SHUTDOWNCOUNTDOWN_INVALID = YAPI.INVALID_UINT
#--- (end of YOsControl definitions)
def __init__(self, func):
super(YOsControl, self).__init__(func)
self._className = 'OsControl'
#--- (YOsControl attributes)
self._callback = None
self._shutdownCountdown = YOsControl.SHUTDOWNCOUNTDOWN_INVALID
#--- (end of YOsControl attributes)
#--- (YOsControl implementation)
def _parseAttr(self, member):
if member.name == "shutdownCountdown":
self._shutdownCountdown = member.ivalue
return 1
super(YOsControl, self)._parseAttr(member)
def get_shutdownCountdown(self):
"""
Returns the remaining number of seconds before the OS shutdown, or zero when no
shutdown has been scheduled.
@return an integer corresponding to the remaining number of seconds before the OS shutdown, or zero when no
shutdown has been scheduled
On failure, throws an exception or returns YOsControl.SHUTDOWNCOUNTDOWN_INVALID.
"""
if self._cacheExpiration <= YAPI.GetTickCount():
if self.load(YAPI.DefaultCacheValidity) != YAPI.SUCCESS:
return YOsControl.SHUTDOWNCOUNTDOWN_INVALID
return self._shutdownCountdown
def set_shutdownCountdown(self, newval):
rest_val = str(newval)
return self._setAttr("shutdownCountdown", rest_val)
@staticmethod
def FindOsControl(func):
"""
Retrieves OS control 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 OS control is online at the time
it is invoked. The returned object is nevertheless valid.
Use the method YOsControl.isOnline() to test if the OS control is
indeed online at a given time. In case of ambiguity when looking for
OS control 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 OS control
@return a YOsControl object allowing you to drive the OS control.
"""
# obj
obj = YFunction._FindFromCache("OsControl", func)
if obj is None:
obj = YOsControl(func)
YFunction._AddToCache("OsControl", func, obj)
return obj
def shutdown(self, secBeforeShutDown):
"""
Schedules an OS shutdown after a given number of seconds.
@param secBeforeShutDown : number of seconds before shutdown
@return YAPI.SUCCESS when the call succeeds.
On failure, throws an exception or returns a negative error code.
"""
return self.set_shutdownCountdown(secBeforeShutDown)
def nextOsControl(self):
"""
Continues the enumeration of OS control started using yFirstOsControl().
@return a pointer to a YOsControl object, corresponding to
OS control currently online, or a None pointer
if there are no more OS control to enumerate.
"""
hwidRef = YRefParam()
if YAPI.YISERR(self._nextFunction(hwidRef)):
return None
if hwidRef.value == "":
return None
return YOsControl.FindOsControl(hwidRef.value)
#--- (end of YOsControl implementation)
#--- (OsControl functions)
@staticmethod
def FirstOsControl():
"""
Starts the enumeration of OS control currently accessible.
Use the method YOsControl.nextOsControl() to iterate on
next OS control.
@return a pointer to a YOsControl object, corresponding to
the first OS control 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("OsControl", 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 YOsControl.FindOsControl(serialRef.value + "." + funcIdRef.value)
#--- (end of OsControl functions)

Event Timeline

c4science · Help