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# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
module Helper
class PlasmaStore
def initialize(options={})
@path = `pkg-config --variable=plasma_store_server plasma`.chomp
@memory_size = options[:memory_size] || 1024 * 1024
@socket_file = Tempfile.new(["plasma-store", ".sock"])
@socket_file.close
@pid = nil
FileUtils.rm_f(socket_path)
end
def socket_path
@socket_file.path
end
def start
@pid = spawn(@path,
"-m", @memory_size.to_s,
"-s", socket_path)
until File.exist?(socket_path)
if Process.waitpid(@pid, Process::WNOHANG)
raise "Failed to run plasma-store-server: #{@path}"
end
end
end
def stop
return if @pid.nil?
Process.kill(:TERM, @pid)
timeout = 1
limit = Time.now + timeout
while Time.now < limit
return if Process.waitpid(@pid, Process::WNOHANG)
sleep(0.1)
end
Process.kill(:KILL, @pid)
Process.waitpid(@pid)
end
end
end
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