Remove obsolete and disabled tests for glibc IMC startup hack

src/tools/posix_over_imc/nacl_launcher.py

-# Copyright (c) 2011 The Native Client Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-import os
-import subprocess
-import struct
-import sys
-
-import naclimc
-
-
-# Descriptor for a bound socket that the NaCl browser plugin sets up
-NACL_PLUGIN_BOUND_SOCK = 3
-
-# Descriptors for connected sockets that the NaCl browser plugin sets up
-NACL_PLUGIN_ASYNC_FROM_CHILD_FD = 6
-NACL_PLUGIN_ASYNC_TO_CHILD_FD = 7
-
-
-def PackStringList(strings):
-  return "".join(arg + "\0" for arg in strings)
-
-
-def PackArgsMessage(argv, envv):
-  return (struct.pack("4sII", "ARGS", len(argv), len(envv))
-          + PackStringList(argv)
-          + PackStringList(envv))
-
-
-def SpawnSelLdrWithSockets(args, fd_slots, **kwargs):
-  sockets = [(fd_slot, naclimc.os_socketpair())
-             for fd_slot in fd_slots]
-  extra_args = []
-  for fd_slot, (child_fd, parent_fd) in sockets:
-    extra_args.extend(["-i", "%i:%i" % (fd_slot, child_fd)])
-
-  def PreExec():
-    for fd_slot, (child_fd, parent_fd) in sockets:
-      os.close(parent_fd)
-
-  cmd = [os.environ["NACL_SEL_LDR"]] + extra_args + args
-  proc = subprocess.Popen(cmd, preexec_fn=PreExec, **kwargs)
-  for fd_slot, (child_fd, parent_fd) in sockets:
-    os.close(child_fd)
-  result_sockets = [naclimc.from_os_socket(parent_fd)
-                    for fd_slot, (child_fd, parent_fd) in sockets]
-  return proc, result_sockets
-
-
-def FileServer(recv_socket, send_socket):
-  while True:
-    try:
-      message, fds = recv_socket.imc_recvmsg(1024)
-    # TODO(mseaborn): When the Python bindings raise a specific
-    # exception type, we should test for that for EOF instead.
-    except Exception:
-      break
-    method_id = message[:4]
-    message_body = message[4:]
-    if method_id == "Open":
-      # TODO(mseaborn): When we handle more types of request, we can
-      # factor out the unmarshalling code.
-      format = "ii"
-      flags, mode = struct.unpack_from(format, message_body)
-      filename = message_body[struct.calcsize(format):]
-      try:
-        fd = os.open(filename, flags)
-      except OSError:
-        send_socket.imc_sendmsg("Fail", tuple([]))
-      else:
-        desc = naclimc.from_os_file_descriptor(fd)
-        send_socket.imc_sendmsg("Okay", tuple([desc]))
-
-
-def Main(args):
-  lib_dir = os.environ["NACL_LIBRARY_DIR"]
-  sel_ldr_args = [
-      # TODO(mseaborn): Fix validation errors so that we do not need
-      # to use -s (stubout mode) with nacl-glibc.
-      "-s",
-      "--", os.path.join(lib_dir, "runnable-ld.so")]
-  proc, [fd1, recv_socket, send_socket] = SpawnSelLdrWithSockets(
-      sel_ldr_args,
-      [NACL_PLUGIN_BOUND_SOCK,
-       NACL_PLUGIN_ASYNC_FROM_CHILD_FD,
-       NACL_PLUGIN_ASYNC_TO_CHILD_FD])
-  argv = ["unused-argv0", "--library-path", lib_dir] + args
-  envv = ["NACL_FILE_RPC=1"]
-  send_socket.imc_sendmsg(PackArgsMessage(argv, envv), tuple([]))
-  FileServer(recv_socket, send_socket)
-  sys.exit(proc.wait())
-
-
-if __name__ == "__main__":
-  Main(sys.argv[1:])