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flyweights.go
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flyweights.go
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/*
Copyright 2016-2018 Stanislav Liberman
Licensed 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.
*/
package driver
import (
"github.com/lirm/aeron-go/aeron/atomic"
"github.com/lirm/aeron-go/aeron/flyweight"
)
/**
* Control message flyweight for any errors sent from driver to clients
*
* <p>
* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Offending Command Correlation ID |
* | |
* +---------------------------------------------------------------+
* | Error Code |
* +---------------------------------------------------------------+
* | Error Message Length |
* +---------------------------------------------------------------+
* | Error Message ...
* ... |
* +---------------------------------------------------------------+
*/
type errorMessage struct {
flyweight.FWBase
offendingCommandCorrelationID flyweight.Int64Field
errorCode flyweight.Int32Field
errorMessage flyweight.StringField
}
func (m *errorMessage) Wrap(buf *atomic.Buffer, offset int) flyweight.Flyweight {
pos := offset
pos += m.offendingCommandCorrelationID.Wrap(buf, pos)
pos += m.errorCode.Wrap(buf, pos)
pos += m.errorMessage.Wrap(buf, pos, m, true)
m.SetSize(pos - offset)
return m
}
/**
* Message to denote that new buffers have been added for a publication.
*
* @see ControlProtocolEvents
*
* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Correlation ID |
* | |
* +---------------------------------------------------------------+
* | Registration ID |
* | |
* +---------------------------------------------------------------+
* | Session ID |
* +---------------------------------------------------------------+
* | Stream ID |
* +---------------------------------------------------------------+
* | Position Limit Counter Id |
* +---------------------------------------------------------------+
* | Channel Status Indicator ID |
* +---------------------------------------------------------------+
* | Log File Length |
* +---------------------------------------------------------------+
* | Log File Name ...
* ... |
* +---------------------------------------------------------------+
*/
type publicationReady struct {
flyweight.FWBase
correlationID flyweight.Int64Field
registrationID flyweight.Int64Field
sessionID flyweight.Int32Field
streamID flyweight.Int32Field
publicationLimitOffset flyweight.Int32Field
channelStatusIndicatorID flyweight.Int32Field
logFileName flyweight.StringField
}
func (m *publicationReady) Wrap(buf *atomic.Buffer, offset int) flyweight.Flyweight {
pos := offset
pos += m.correlationID.Wrap(buf, pos)
pos += m.registrationID.Wrap(buf, pos)
pos += m.sessionID.Wrap(buf, pos)
pos += m.streamID.Wrap(buf, pos)
pos += m.publicationLimitOffset.Wrap(buf, pos)
pos += m.channelStatusIndicatorID.Wrap(buf, pos)
pos += m.logFileName.Wrap(buf, pos, m, true)
m.SetSize(pos - offset)
return m
}
/**
* Message to denote that a Subscription has been successfully set up.
*
* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Correlation ID |
* | |
* +---------------------------------------------------------------+
* | Channel Status Indicator ID |
* +---------------------------------------------------------------+
*/
type subscriptionReady struct {
flyweight.FWBase
correlationID flyweight.Int64Field
channelStatusIndicatorID flyweight.Int32Field
}
func (m *subscriptionReady) Wrap(buf *atomic.Buffer, offset int) flyweight.Flyweight {
pos := offset
pos += m.correlationID.Wrap(buf, pos)
pos += m.channelStatusIndicatorID.Wrap(buf, pos)
m.SetSize(pos - offset)
return m
}
/**
* Message to denote that new buffers have been added for a subscription.
*
* NOTE: Layout should be SBE compliant
*
* @see ControlProtocolEvents
*
* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Correlation ID |
* | |
* +---------------------------------------------------------------+
* | Session ID |
* +---------------------------------------------------------------+
* | Stream ID |
* +---------------------------------------------------------------+
* | Subscriber Registration Id |
* | |
* +---------------------------------------------------------------+
* | Subscriber Position Id |
* +---------------------------------------------------------------+
* | Log File Length |
* +---------------------------------------------------------------+
* | Log File Name ...
*... |
* +---------------------------------------------------------------+
* | Source identity Length |
* +---------------------------------------------------------------+
* | Source identity Name ...
*... |
* +---------------------------------------------------------------+
*/
type imageReadyHeader struct {
flyweight.FWBase
correlationID flyweight.Int64Field
sessionID flyweight.Int32Field
streamID flyweight.Int32Field
subsRegistrationID flyweight.Int64Field
subsPosID flyweight.Int32Field
logFile flyweight.StringField
sourceIdentity flyweight.StringField
}
func (m *imageReadyHeader) Wrap(buf *atomic.Buffer, offset int) flyweight.Flyweight {
pos := offset
pos += m.correlationID.Wrap(buf, pos)
pos += m.sessionID.Wrap(buf, pos)
pos += m.streamID.Wrap(buf, pos)
pos += m.subsRegistrationID.Wrap(buf, pos)
pos += m.subsPosID.Wrap(buf, pos)
pos += m.logFile.Wrap(buf, pos, m, true)
pos += m.sourceIdentity.Wrap(buf, pos, m, true)
m.SetSize(pos - offset)
return m
}
/**
* Message to denote that a Counter has been successfully set up or removed.
*
* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Correlation ID |
* | |
* +---------------------------------------------------------------+
* | Counter ID |
* +---------------------------------------------------------------+
*/
type counterUpdate struct {
flyweight.FWBase
correlationID flyweight.Int64Field
counterID flyweight.Int32Field
}
func (m *counterUpdate) Wrap(buf *atomic.Buffer, offset int) flyweight.Flyweight {
pos := offset
pos += m.correlationID.Wrap(buf, pos)
pos += m.counterID.Wrap(buf, pos)
m.SetSize(pos - offset)
return m
}
/**
* Indicate a client has timed out by the driver.
*
* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Client Id |
* | |
* +---------------------------------------------------------------+
*/
type clientTimeout struct {
flyweight.FWBase
clientID flyweight.Int64Field
}
func (m *clientTimeout) Wrap(buf *atomic.Buffer, offset int) flyweight.Flyweight {
pos := offset
pos += m.clientID.Wrap(buf, pos)
m.SetSize(pos - offset)
return m
}