daq::OcmDaqController Class Reference

Implements daq::DaqController for states responsible to be executed by OCM. More...

#include <daqController.hpp>

Inheritance diagram for daq::OcmDaqController:

Classes
struct	Aborted
struct	Aborting
struct	Acquiring
struct	NotStarted
struct	Starting
struct	Stopped
struct	Stopping

Public Member Functions
boost::future< State >	StartAsync () override
	Starts the data acquisition. More...
boost::future< Status >	StopAsync (ErrorPolicy policy) override
	Stops the data acquisition. More...
boost::future< Status >	AbortAsync (ErrorPolicy policy) override
	Aborts the data acquisition. More...
boost::future< State >	ScheduleMergeAsync () override
	Schedules DAQ for merging by sending request to DPM. More...
void	UpdateKeywords (fits::KeywordVector const &keywords) override
	Updates (replace or add) list of keywords. More...
boost::future< State >	AwaitAsync (std::vector< std::string > sources, std::chrono::milliseconds timeout) override
	Awaits that data acquisition stops or aborts. More...
State	GetState () const DAQ_NOEXCEPT override
constexpr log4cplus::Logger const &	GetLogger () const noexcept
Public Member Functions inherited from daq::CommonDaqController
	CommonDaqController (boost::asio::io_context &io_context, DaqContext context, std::shared_ptr< ObservableStatus > status, std::shared_ptr< ObservableEventLog > event_log)
std::shared_ptr< ObservableStatus >	GetStatus () DAQ_NOEXCEPT override
std::shared_ptr< ObservableStatus const >	GetStatus () const DAQ_NOEXCEPT override
std::shared_ptr< ObservableEventLog >	GetEventLog () DAQ_NOEXCEPT override
std::string const &	GetId () const DAQ_NOEXCEPT override
bool	GetErrorFlag () const DAQ_NOEXCEPT override
DaqContext const &	GetContext () const DAQ_NOEXCEPT override
boost::signals2::connection	ConnectContext (ContextSignal::slot_type const &slot) override
	Connect observer that is invoked when context is modified. More...
Public Member Functions inherited from daq::DaqController
	DaqController ()=default
virtual	~DaqController ()=default

Static Public Member Functions
static std::shared_ptr< OcmDaqController >	Create (boost::asio::io_context &io_context, DaqContext context, DaqSources const &sources, std::shared_ptr< ObservableStatus > status, std::shared_ptr< ObservableEventLog > event_log, OcmAsyncOperations operations)
	Construct object. More...

Protected Types
using	StateVariant = std::variant< NotStarted, Starting, Acquiring, Stopping, Stopped, Aborting, Aborted >

Protected Member Functions
StateVariant	MakeState (State s) const noexcept
	OcmDaqController (boost::asio::io_context &io_context, DaqContext context, DaqSources const &sources, std::shared_ptr< ObservableStatus > status, std::shared_ptr< ObservableEventLog > event_log, OcmAsyncOperations ops)
op::AsyncOpParams	MakeParams (op::AlertState &)
	Constructs the parameters used for asynchronous operations. More...
op::AwaitOpParams	MakeAwaitParams (op::AlertState &)
void	InitiateAwaitPrimarySources ()
	Await completion of primary sources. More...
void	AddInitialKeywords ()
void	SetErrorFlag (bool error) noexcept
void	SetState (StateVariant &&s) noexcept
std::optional< std::variant< gsl::not_null< Source< PrimSource > * >, gsl::not_null< Source< MetaSource > * > > >	FindSource (std::string_view source_id)
template<class SourceType >
std::vector< Source< SourceType > >	MakeSources (std::vector< SourceType > sources)
	Helper to build source vector. More...
Protected Member Functions inherited from daq::CommonDaqController
template<class T , class... Args>
void	AddEvent (Args &&... args)
boost::asio::io_context &	GetIoCtx () noexcept
rad::IoExecutor &	GetIoExecutor () noexcept
DaqContext &	GetContextMut () noexcept
ObservableEventLog &	GetEventLogRef () noexcept
ObservableStatus &	GetStatusRef () noexcept
ObservableStatus const &	GetStatusRef () const noexcept
void	EmitContextSignal ()

Protected Attributes
StateVariant	m_state
std::vector< Source< PrimSource > >	m_prim_sources
	Note: Consider vector immutable! More...
std::vector< Source< MetaSource > >	m_meta_sources
	Note: Consider vector immutable! More...
OcmAsyncOperations	m_async_ops
std::shared_ptr< PendingReplies >	m_pending_replies
std::vector< std::unique_ptr< boost::asio::steady_timer > >	m_timers
std::function< bool()>	m_abort_await_primary_sources
	If DaqController is awaiting the completion of primary data sources this function will hold the abort function. More...
log4cplus::Logger	m_logger

Additional Inherited Members
Public Types inherited from daq::DaqController
using	ContextSignal = boost::signals2::signal< void(DaqContext const &)>

Detailed Description

Implements daq::DaqController for states responsible to be executed by OCM.

The states executed by DPM are implemented by DpmDaqController.

Definition at line 390 of file daqController.hpp.

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Class Documentation

daq::OcmDaqController::Aborted

struct daq::OcmDaqController::Aborted

Definition at line 435 of file daqController.hpp.

daq::OcmDaqController::Aborting

struct daq::OcmDaqController::Aborting

Definition at line 434 of file daqController.hpp.

daq::OcmDaqController::Acquiring

struct daq::OcmDaqController::Acquiring

Definition at line 431 of file daqController.hpp.

daq::OcmDaqController::NotStarted

struct daq::OcmDaqController::NotStarted

Definition at line 429 of file daqController.hpp.

daq::OcmDaqController::Starting

struct daq::OcmDaqController::Starting

Definition at line 430 of file daqController.hpp.

daq::OcmDaqController::Stopped

struct daq::OcmDaqController::Stopped

Definition at line 433 of file daqController.hpp.

daq::OcmDaqController::Stopping

struct daq::OcmDaqController::Stopping

Definition at line 432 of file daqController.hpp.

Member Typedef Documentation

StateVariant

using daq::OcmDaqController::StateVariant = std::variant<NotStarted, Starting, Acquiring, Stopping, Stopped, Aborting, Aborted>

protected

Definition at line 437 of file daqController.hpp.

Constructor & Destructor Documentation

OcmDaqController()

daq::OcmDaqController::OcmDaqController ( boost::asio::io_context &  io_context, DaqContext  context, DaqSources const &  sources, std::shared_ptr< ObservableStatus >  status, std::shared_ptr< ObservableEventLog >  event_log, OcmAsyncOperations  ops  )

protected

Definition at line 174 of file daqController.cpp.

Member Function Documentation

AbortAsync()

boost::future< Status > daq::OcmDaqController::AbortAsync ( ErrorPolicy  policy )

overridevirtual

Aborts the data acquisition.

Parameters

policy

Error policy determining if errors are tolerated or not.

It is possible to issue this request more than once, to e.g. retry a failed abort attempt.

Precondition

GetState() not in (State::Aborted, State::Stopped)

Postcondition

GetState() == State::Aborting if a data acquisition was ongoing otherwise GetState() == State::Aborted.

Implements daq::DaqController.

Definition at line 409 of file daqController.cpp.

AddInitialKeywords()

void daq::OcmDaqController::AddInitialKeywords ( )

protected

Definition at line 293 of file daqController.cpp.

AwaitAsync()

boost::future< State > daq::OcmDaqController::AwaitAsync ( std::vector< std::string >  sources, std::chrono::milliseconds  timeout  )

overridevirtual

Awaits that data acquisition stops or aborts.

It is possible to await only only a subset of data sources by specifying their ids in sources.

Parameters

sources

An optional vector of source-ids to await, if empty all primary sources are awaited on.

Returns

future set with std::invalid_argument if source-id is not recognized.

future set with boost::broken_promise if DaqController is destroyed before operation completes.

Implements daq::DaqController.

Definition at line 493 of file daqController.cpp.

Create()

std::shared_ptr< OcmDaqController > daq::OcmDaqController::Create ( boost::asio::io_context &  io_context, DaqContext  context, DaqSources const &  sources, std::shared_ptr< ObservableStatus >  status, std::shared_ptr< ObservableEventLog >  event_log, OcmAsyncOperations  operations  )

static

Construct object.

Parameters

io_context	Executor used for continuations and timer.
context	General context used to control DAQ execution.
status	Data acquisition status object, also contains identifier (may not be empty). Caller is responsible for making the id unique.
prim	Primary data sources
meta	Metadata sources

Precondition

status == true.

event_log == true.

Exceptions

std::invalid_argument

if arguments are invalid.

Definition at line 157 of file daqController.cpp.

FindSource()

std::optional< std::variant< gsl::not_null< Source< PrimSource > * >, gsl::not_null< Source< MetaSource > * > > > daq::OcmDaqController::FindSource ( std::string_view  source_id )

protected

Definition at line 632 of file daqController.cpp.

GetLogger()

constexpr log4cplus::Logger const & daq::OcmDaqController::GetLogger ( ) const

constexprnoexcept

Returns

Logger associated with this DaqController.

Definition at line 231 of file daqController.cpp.

GetState()

State daq::OcmDaqController::GetState ( ) const

overridevirtual

Returns

state of data acquisition.

Implements daq::DaqController.

Definition at line 204 of file daqController.cpp.

InitiateAwaitPrimarySources()

void daq::OcmDaqController::InitiateAwaitPrimarySources ( )

protected

Await completion of primary sources.

If there are no sources this method does nothing.

Definition at line 669 of file daqController.cpp.

MakeAwaitParams()

op::AwaitOpParams daq::OcmDaqController::MakeAwaitParams ( op::AlertState &  alerts )

protected

Definition at line 280 of file daqController.cpp.

MakeParams()

op::AsyncOpParams daq::OcmDaqController::MakeParams ( op::AlertState &  alerts )

protected

Constructs the parameters used for asynchronous operations.

Note

OcmAsyncOpParams will bind references to member variables so caller must guarantee that DaqController outlives the async operation. This is normally done by holding a shared copy in the last .then continuation for the async operation, thus guaranteeing that all intermediate continuations will access a valid object.

Definition at line 268 of file daqController.cpp.

MakeSources()

template<class SourceType >

std::vector< Source< SourceType > > daq::OcmDaqController::MakeSources ( std::vector< SourceType >  sources )

protected

Helper to build source vector.

Definition at line 657 of file daqController.cpp.

MakeState()

OcmDaqController::StateVariant daq::OcmDaqController::MakeState ( State  s ) const

protectednoexcept

Definition at line 235 of file daqController.cpp.

ScheduleMergeAsync()

boost::future< State > daq::OcmDaqController::ScheduleMergeAsync ( )

overridevirtual

Schedules DAQ for merging by sending request to DPM.

Returns

future containing exception:

• std::logic_error if DAQ has already been scheduled
• mal::TimeoutException if DPM is offline (timeout).
• unspecified DPM fails

Implements daq::DaqController.

Definition at line 473 of file daqController.cpp.

SetErrorFlag()

void daq::OcmDaqController::SetErrorFlag ( bool  error )

protectednoexcept

Definition at line 258 of file daqController.cpp.

SetState()

void daq::OcmDaqController::SetState ( OcmDaqController::StateVariant &&  s )

protectednoexcept

Definition at line 262 of file daqController.cpp.

StartAsync()

boost::future< State > daq::OcmDaqController::StartAsync ( )

overridevirtual

Starts the data acquisition.

Returns

A future that will be Set once data acquisition has started or or fails.

Exceptions

std::exception-derived

exception if internal error occurs.

Returns

Future that is ready once all sources are started or failed.

Precondition

GetState() == State::Notstarted

Postcondition

GetState() == State::Starting on success GetState() == State::Error on error

Implements daq::DaqController.

Definition at line 297 of file daqController.cpp.

StopAsync()

boost::future< Status > daq::OcmDaqController::StopAsync ( ErrorPolicy  policy )

overridevirtual

Stops the data acquisition.

Precondition

GetState() not in (State::Stopped or State::Aborted)

Postcondition

GetState() == State::Stopping

Implements daq::DaqController.

Definition at line 340 of file daqController.cpp.

UpdateKeywords()

void daq::OcmDaqController::UpdateKeywords ( fits::KeywordVector const &  keywords )

overridevirtual

Updates (replace or add) list of keywords.

Parameters

keywords

Keywords to add.

Implements daq::DaqController.

Definition at line 478 of file daqController.cpp.

Member Data Documentation

m_abort_await_primary_sources

std::function<bool()> daq::OcmDaqController::m_abort_await_primary_sources

protected

If DaqController is awaiting the completion of primary data sources this function will hold the abort function.

@important Users must check if it is valid before invoking it.

Definition at line 501 of file daqController.hpp.

m_async_ops

OcmAsyncOperations daq::OcmDaqController::m_async_ops

protected

Definition at line 491 of file daqController.hpp.

m_logger

log4cplus::Logger daq::OcmDaqController::m_logger

protected

Definition at line 502 of file daqController.hpp.

m_meta_sources

std::vector<Source<MetaSource> > daq::OcmDaqController::m_meta_sources

protected

Note: Consider vector immutable!

Definition at line 489 of file daqController.hpp.

m_pending_replies

std::shared_ptr<PendingReplies> daq::OcmDaqController::m_pending_replies

protected

Definition at line 492 of file daqController.hpp.

m_prim_sources

std::vector<Source<PrimSource> > daq::OcmDaqController::m_prim_sources

protected

Note: Consider vector immutable!

Definition at line 488 of file daqController.hpp.

m_state

StateVariant daq::OcmDaqController::m_state

protected

Definition at line 486 of file daqController.hpp.

m_timers

std::vector<std::unique_ptr<boost::asio::steady_timer> > daq::OcmDaqController::m_timers

protected

Definition at line 493 of file daqController.hpp.

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The documentation for this class was generated from the following files:

• common/libdaq/src/include/daq/daqController.hpp
• common/libdaq/src/daqController.cpp