from __future__ import division, absolute_import

__copyright__ = "Copyright (C) 2013 Andreas Kloeckner"

__license__ = """

Permission is hereby granted, free of charge, to any person obtaining a copy

of this software and associated documentation files (the "Software"), to deal

in the Software without restriction, including without limitation the rights

to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

copies of the Software, and to permit persons to whom the Software is

furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in

all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

THE SOFTWARE.

"""

import os

from sumpy.p2p import P2P, P2PFromCSR

from sumpy.p2e import P2EFromSingleBox, P2EFromCSR

from sumpy.e2p import E2PFromSingleBox, E2PFromCSR

from sumpy.e2e import E2EFromCSR, E2EFromChildren, E2EFromParent

from sumpy.version import VERSION_TEXT

from pytools.persistent_dict import WriteOncePersistentDict

__all__ = [

"P2P", "P2PFromCSR",

"P2EFromSingleBox", "P2EFromCSR",

"E2PFromSingleBox", "E2PFromCSR",

"E2EFromCSR", "E2EFromChildren", "E2EFromParent"]

code_cache = WriteOncePersistentDict("sumpy-code-cache-v6-"+VERSION_TEXT)

# {{{ optimization control

OPT_ENABLED = True

OPT_ENABLED = "SUMPY_NO_OPT" not in os.environ

def set_optimization_enabled(flag):

"""Set whether the :mod:`loopy` kernels should be optimized."""

global OPT_ENABLED

OPT_ENABLED = flag

# }}}

# {{{ cache control

CACHING_ENABLED = True

CACHING_ENABLED = (

"SUMPY_NO_CACHE" not in os.environ

and

"CG_NO_CACHE" not in os.environ)

def set_caching_enabled(flag):

"""Set whether :mod:`loopy` is allowed to use disk caching for its various

code generation stages.

"""

global CACHING_ENABLED

CACHING_ENABLED = flag

class CacheMode(object):

"""A context manager for setting whether :mod:`sumpy` is allowed to use

disk caches.

"""

def __init__(self, new_flag):

self.new_flag = new_flag

def __enter__(self):

global CACHING_ENABLED

self.previous_mode = CACHING_ENABLED

CACHING_ENABLED = self.new_flag

def __exit__(self, exc_type, exc_val, exc_tb):

global CACHING_ENABLED

CACHING_ENABLED = self.previous_mode

del self.previous_mode

# }}}