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cimport cpython

import pkg_resources
import os.path
import sys

# TODO(atash): figure out why the coverage tool gets confused about the Cython
# coverage plugin when the following files don't have a '.pxi' suffix.
include "grpc/_cython/_cygrpc/call.pyx.pxi"
include "grpc/_cython/_cygrpc/channel.pyx.pxi"
include "grpc/_cython/_cygrpc/credentials.pyx.pxi"
include "grpc/_cython/_cygrpc/completion_queue.pyx.pxi"
include "grpc/_cython/_cygrpc/records.pyx.pxi"
include "grpc/_cython/_cygrpc/security.pyx.pxi"
include "grpc/_cython/_cygrpc/server.pyx.pxi"

#
# Global state
#

cdef class _ModuleState:

  cdef bint is_loaded

  def __cinit__(self):
    if 'win32' in sys.platform:
      filename = pkg_resources.resource_filename(
          'grpc._cython', '_windows/grpc_c.64.python')
      if not pygrpc_load_core(filename):
        raise ImportError('failed to load core gRPC library')
    grpc_init()
    self.is_loaded = True
    grpc_set_ssl_roots_override_callback(
        <grpc_ssl_roots_override_callback>ssl_roots_override_callback)

  def __dealloc__(self):
    if self.is_loaded:
      grpc_shutdown()

_module_state = _ModuleState()

