Rollback trunk to bleeding_edge revision 12525

tools/testrunner/server/compression.py

Index: tools/testrunner/server/compression.py
diff --git a/tools/testrunner/server/compression.py b/tools/testrunner/server/compression.py
deleted file mode 100644
index ce90c4f5978139b0ec961919b688a56631ceed67..0000000000000000000000000000000000000000
--- a/tools/testrunner/server/compression.py
+++ /dev/null
@@ -1,112 +0,0 @@
-# Copyright 2012 the V8 project authors. All rights reserved.
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#     * Redistributions of source code must retain the above copyright
-#       notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-#       copyright notice, this list of conditions and the following
-#       disclaimer in the documentation and/or other materials provided
-#       with the distribution.
-#     * Neither the name of Google Inc. nor the names of its
-#       contributors may be used to endorse or promote products derived
-#       from this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-import cStringIO as StringIO
-try:
-  import ujson as json
-except ImportError:
-  print("You should install UltraJSON, it is much faster!")
-  import json
-import os
-import struct
-import zlib
-
-from . import constants
-
-def Send(obj, sock):
-  """
-  Sends a JSON encodable object over the specified socket (zlib-compressed).
-  """
-  obj = json.dumps(obj)
-  compression_level = 2  # 1 = fastest, 9 = best compression
-  compressed = zlib.compress(obj, compression_level)
-  payload = struct.pack('>i', len(compressed)) + compressed
-  sock.sendall(payload)
-
-
-class Receiver(object):
-  def __init__(self, sock):
-    self.sock = sock
-    self.data = StringIO.StringIO()
-    self.datalength = 0
-    self._next = self._GetNext()
-
-  def IsDone(self):
-    return self._next == None
-
-  def Current(self):
-    return self._next
-
-  def Advance(self):
-    try:
-      self._next = self._GetNext()
-    except:
-      raise
-
-  def _GetNext(self):
-    try:
-      while self.datalength < constants.SIZE_T:
-        try:
-          chunk = self.sock.recv(8192)
-        except:
-          raise
-        if not chunk: return None
-        self._AppendData(chunk)
-      size = self._PopData(constants.SIZE_T)
-      size = struct.unpack(">i", size)[0]
-      while self.datalength < size:
-        try:
-          chunk = self.sock.recv(8192)
-        except:
-          raise
-        if not chunk: return None
-        self._AppendData(chunk)
-      result = self._PopData(size)
-      result = zlib.decompress(result)
-      result = json.loads(result)
-      if result == constants.END_OF_STREAM:
-        return None
-      return result
-    except:
-      raise
-
-  def _AppendData(self, new):
-    self.data.seek(0, os.SEEK_END)
-    self.data.write(new)
-    self.datalength += len(new)
-
-  def _PopData(self, length):
-    self.data.seek(0)
-    chunk = self.data.read(length)
-    remaining = self.data.read()
-    self.data.close()
-    self.data = StringIO.StringIO()
-    self.data.write(remaining)
-    assert self.datalength - length == len(remaining)
-    self.datalength = len(remaining)
-    return chunk