def TdiExecute(expression,args=None):
"""Compile and execute a TDI expression. Format: TdiExecute('expression-string')"""
from _descriptor import descriptor_xd,descriptor,MdsGetMsg
from tree import Tree
xd=descriptor_xd()
done=False
try:
Tree.lock()
restoreContext()
if args is None:
status=TdiShr.TdiExecute(pointer(descriptor(expression)),pointer(xd),c_void_p(-1))
else:
if isinstance(args,tuple):
if len(args) > 0:
if isinstance(args[0],tuple):
ans = TdiExecute(expression,args[0])
done=True
if not done:
exp='TdiShr.TdiExecute(pointer(descriptor(expression))'
for i in range(len(args)):
exp=exp+',pointer(descriptor(args[%d]))' % i
exp=exp+',pointer(xd),c_void_p(-1))'
status=eval(exp)
else:
raise TypeError('Arguments must be passed as a tuple')
finally:
Tree.unlock()
if done:
return ans
if (status & 1 != 0):
return xd.value
else:
raise TdiException(MdsGetMsg(status,"Error compiling expression"))
def TdiEvaluate(value):
"""Evaluate and functions. Format: TdiEvaluate(data)"""
from _descriptor import descriptor_xd,descriptor,MdsGetMsg
from tree import Tree
xd=descriptor_xd()
try:
Tree.lock()
restoreContext()
status=TdiShr.TdiEvaluate(pointer(descriptor(value)),pointer(xd),c_void_p(-1))
finally:
Tree.unlock()
if (status & 1 != 0):
return xd.value
else:
raise TdiException(MdsGetMsg(status,"Error evaluating value"))
def TdiData(value):
"""Return primiitive data type. Format: TdiData(value)"""
from _descriptor import descriptor_xd,descriptor,MdsGetMsg
from tree import Tree
xd=descriptor_xd()
try:
Tree.lock()
restoreContext()
status=TdiShr.TdiData(pointer(descriptor(value)),pointer(xd),c_void_p(-1))
finally:
Tree.unlock()
if (status & 1 != 0):
return xd.value
else:
raise TdiException(MdsGetMsg(status,"Error converting value to data"))
def TdiEvaluate(value):
"""Compile and execute a TDI expression. Format: TdiExecute('expression-string')"""
from _descriptor import descriptor_xd,descriptor,MdsGetMsg
from tree import Tree
xd=descriptor_xd()
try:
Tree.lock()
restoreContext()
status=TdiShr.TdiEvaluate(pointer(descriptor(value)),pointer(xd),c_void_p(-1))
finally:
Tree.unlock()
if (status & 1 != 0):
return xd.value
else:
raise TdiException,MdsGetMsg(status,"Error evaluating value")
def TdiDecompile(value):
"""Compile and execute a TDI expression. Format: TdiExecute('expression-string')"""
from _descriptor import descriptor_xd,descriptor,MdsGetMsg
from tree import Tree
xd=descriptor_xd()
try:
Tree.lock()
restoreContext()
status=TdiShr.TdiDecompile(pointer(descriptor(value)),pointer(xd),c_void_p(-1))
finally:
Tree.unlock()
if (status & 1 != 0):
try:
return str(xd.value.value.decode())
except Exception,e:
return str(xd.value.value)