133e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# Copyright 2012 the V8 project authors. All rights reserved.
233e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# Redistribution and use in source and binary forms, with or without
333e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# modification, are permitted provided that the following conditions are
433e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# met:
533e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org#
633e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org#     * Redistributions of source code must retain the above copyright
733e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org#       notice, this list of conditions and the following disclaimer.
833e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org#     * Redistributions in binary form must reproduce the above
933e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org#       copyright notice, this list of conditions and the following
1033e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org#       disclaimer in the documentation and/or other materials provided
1133e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org#       with the distribution.
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1333e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org#       contributors may be used to endorse or promote products derived
1433e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org#       from this software without specific prior written permission.
1533e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org#
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1833e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1933e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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2133e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
2233e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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2633e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
2733e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
2833e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
2933e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.orgclass Peer(object):
3033e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  def __init__(self, address, jobs, rel_perf, pubkey):
3133e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    self.address = address  # string: IP address
3233e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    self.jobs = jobs  # integer: number of CPUs
3333e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    self.relative_performance = rel_perf
3433e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    self.pubkey = pubkey # string: pubkey's fingerprint
3533e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    self.shells = set()  # set of strings
3633e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    self.needed_work = 0
3733e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    self.assigned_work = 0
3833e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    self.tests = []  # list of TestCase objects
3933e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    self.trusting_me = False  # This peer trusts my public key.
4033e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    self.trusted = False  # I trust this peer's public key.
4133e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
4233e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  def __str__(self):
4333e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    return ("Peer at %s, jobs: %d, performance: %.2f, trust I/O: %s/%s" %
4433e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org            (self.address, self.jobs, self.relative_performance,
4533e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org             self.trusting_me, self.trusted))
4633e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
4733e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  def AddTests(self, shell):
4833e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    """Adds tests from |shell| to this peer.
4933e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
5033e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    Stops when self.needed_work reaches zero, or when all of shell's tests
5133e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    are assigned."""
5233e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    assert self.needed_work > 0
5333e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    if shell.shell not in self.shells:
5433e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org      self.shells.add(shell.shell)
5533e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    while len(shell.tests) > 0 and self.needed_work > 0:
5633e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org      t = shell.tests.pop()
5733e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org      self.needed_work -= t.duration
5833e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org      self.assigned_work += t.duration
5933e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org      shell.total_duration -= t.duration
6033e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org      self.tests.append(t)
6133e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
6233e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  def ForceAddOneTest(self, test, shell):
6333e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    """Forcibly adds another test to this peer, disregarding needed_work."""
6433e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    if shell.shell not in self.shells:
6533e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org      self.shells.add(shell.shell)
6633e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    self.needed_work -= test.duration
6733e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    self.assigned_work += test.duration
6833e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    shell.total_duration -= test.duration
6933e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    self.tests.append(test)
7033e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
7133e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
7233e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  def Pack(self):
7333e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    """Creates a JSON serializable representation of this Peer."""
7433e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    return [self.address, self.jobs, self.relative_performance]
7533e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
7633e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  @staticmethod
7733e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  def Unpack(packed):
7833e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    """Creates a Peer object built from a packed representation."""
7933e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    pubkey_dummy = ""  # Callers of this don't care (only the server does).
8033e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    return Peer(packed[0], packed[1], packed[2], pubkey_dummy)
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