/
publisher.rb
181 lines (163 loc) · 4.92 KB
/
publisher.rb
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# Copyright (c) 2016-2017 Pierre Goudet <p-goudet@ruby-dev.jp>
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Eclipse Public License v1.0
# and Eclipse Distribution License v1.0 which accompany this distribution.
#
# The Eclipse Public License is available at
# https://eclipse.org/org/documents/epl-v10.php.
# and the Eclipse Distribution License is available at
# https://eclipse.org/org/documents/edl-v10.php.
#
# Contributors:
# Pierre Goudet - initial committer
module PahoMqtt
class Publisher
def initialize(sender)
@waiting_puback = []
@waiting_pubrec = []
@waiting_pubrel = []
@waiting_pubcomp = []
@puback_mutex = Mutex.new
@pubrec_mutex = Mutex.new
@pubrel_mutex = Mutex.new
@pubcomp_mutex = Mutex.new
@sender = sender
end
def sender=(sender)
@sender = sender
end
def send_publish(topic, payload, retain, qos, new_id)
packet = PahoMqtt::Packet::Publish.new(
:id => new_id,
:topic => topic,
:payload => payload,
:retain => retain,
:qos => qos
)
case qos
when 1
push_queue(@waiting_puback, @puback_mutex, MAX_PUBACK, packet, new_id)
when 2
push_queue(@waiting_pubrec, @pubrec_mutex, MAX_PUBREC, packet, new_id)
end
@sender.append_to_writing(packet)
MQTT_ERR_SUCCESS
end
def push_queue(waiting_queue, queue_mutex, max_packet, packet, new_id)
begin
if waiting_queue.length >= max_packet
raise FullQueueException
end
queue_mutex.synchronize do
waiting_queue.push(:id => new_id, :packet => packet, :timestamp => Time.now)
end
rescue FullQueueException
PahoMqtt.logger.error("#{packet.type_name} queue is full") if PahoMqtt.logger?
sleep SELECT_TIMEOUT
retry
end
MQTT_ERR_SUCCESS
end
def do_publish(qos, packet_id)
case qos
when 0
when 1
send_puback(packet_id)
when 2
send_pubrec(packet_id)
else
PahoMqtt.logger.error("The packet QoS value is invalid in publish.") if PahoMqtt.logger?
raise PacketException.new('Invalid publish QoS value')
end
MQTT_ERR_SUCCESS
end
def send_puback(packet_id)
packet = PahoMqtt::Packet::Puback.new(
:id => packet_id
)
@sender.append_to_writing(packet)
MQTT_ERR_SUCCESS
end
def do_puback(packet_id)
@puback_mutex.synchronize do
@waiting_puback.delete_if { |pck| pck[:id] == packet_id }
end
MQTT_ERR_SUCCESS
end
def send_pubrec(packet_id)
packet = PahoMqtt::Packet::Pubrec.new(
:id => packet_id
)
push_queue(@waiting_pubrel, @pubrel_mutex, MAX_PUBREL, packet, packet_id)
@sender.append_to_writing(packet)
MQTT_ERR_SUCCESS
end
def do_pubrec(packet_id)
@pubrec_mutex.synchronize do
@waiting_pubrec.delete_if { |pck| pck[:id] == packet_id }
end
send_pubrel(packet_id)
end
def send_pubrel(packet_id)
packet = PahoMqtt::Packet::Pubrel.new(
:id => packet_id
)
push_queue(@waiting_pubcomp, @pubcomp_mutex, MAX_PUBCOMP, packet, packet_id)
@sender.append_to_writing(packet)
MQTT_ERR_SUCCESS
end
def do_pubrel(packet_id)
@pubrel_mutex.synchronize do
@waiting_pubrel.delete_if { |pck| pck[:id] == packet_id }
end
send_pubcomp(packet_id)
end
def send_pubcomp(packet_id)
packet = PahoMqtt::Packet::Pubcomp.new(
:id => packet_id
)
@sender.append_to_writing(packet)
MQTT_ERR_SUCCESS
end
def do_pubcomp(packet_id)
@pubcomp_mutex.synchronize do
@waiting_pubcomp.delete_if { |pck| pck[:id] == packet_id }
end
MQTT_ERR_SUCCESS
end
def config_all_message_queue
config_message_queue(@waiting_puback, @puback_mutex)
config_message_queue(@waiting_pubrec, @pubrec_mutex)
config_message_queue(@waiting_pubrel, @pubrel_mutex)
config_message_queue(@waiting_pubcomp, @pubcomp_mutex)
end
def config_message_queue(queue, mutex)
mutex.synchronize do
queue.each do |pck|
pck[:timestamp] = Time.now
end
end
end
def check_waiting_publisher
@sender.check_ack_alive(@waiting_puback, @puback_mutex)
@sender.check_ack_alive(@waiting_pubrec, @pubrec_mutex)
@sender.check_ack_alive(@waiting_pubrel, @pubrel_mutex)
@sender.check_ack_alive(@waiting_pubcomp, @pubcomp_mutex)
end
def flush_publisher
@puback_mutex.synchronize do
@waiting_puback = []
end
@pubrec_mutex.synchronize do
@waiting_pubrec = []
end
@pubrel_mutex.synchronize do
@waiting_pubrel = []
end
@pubcomp_mutex.synchronize do
@waiting_pubcomp = []
end
end
end
end