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ros::Subscription Class Reference

Manages a subscription on a single topic. More...

#include <subscription.h>

List of all members.

Classes

struct  CallbackInfo
struct  LatchInfo
class  PendingConnection

Public Types

typedef std::map< std::string,
std::string > 
M_string
typedef boost::shared_ptr
< PendingConnection
PendingConnectionPtr

Public Member Functions

bool addCallback (const SubscriptionCallbackHelperPtr &helper, const std::string &md5sum, CallbackQueueInterface *queue, int32_t queue_size, const VoidConstPtr &tracked_object, bool allow_concurrent_callbacks)
void addLocalConnection (const PublicationPtr &pub)
const std::string datatype ()
void drop ()
 Terminate all our PublisherLinks.
void getInfo (XmlRpc::XmlRpcValue &info)
const std::string & getName () const
uint32_t getNumCallbacks () const
uint32_t getNumPublishers ()
void getPublishTypes (bool &ser, bool &nocopy, const std::type_info &ti)
XmlRpc::XmlRpcValue getStats ()
uint32_t handleMessage (const SerializedMessage &m, bool ser, bool nocopy, const boost::shared_ptr< M_string > &connection_header, const PublisherLinkPtr &link)
 Called to notify that a new message has arrived from a publisher. Schedules the callback for invokation with the callback queue.
void headerReceived (const PublisherLinkPtr &link, const Header &h)
bool isDropped ()
 Returns whether this Subscription has been dropped or not.
const std::string md5sum ()
bool negotiateConnection (const std::string &xmlrpc_uri)
 Negotiates a connection with a publisher.
void pendingConnectionDone (const PendingConnectionPtr &pending_conn, XmlRpc::XmlRpcValue &result)
bool pubUpdate (const std::vector< std::string > &pubs)
 Handle a publisher update list received from the master. Creates/drops PublisherLinks based on the list. Never handles new self-subscriptions.
void removeCallback (const SubscriptionCallbackHelperPtr &helper)
void removePublisherLink (const PublisherLinkPtr &pub_link)
 Removes a subscriber from our list.
void shutdown ()
 Terminate all our PublisherLinks and join our callback thread if it exists.
 Subscription (const std::string &name, const std::string &md5sum, const std::string &datatype, const TransportHints &transport_hints)
virtual ~Subscription ()

Private Types

typedef boost::shared_ptr
< CallbackInfo
CallbackInfoPtr
typedef std::map
< PublisherLinkPtr, LatchInfo
M_PublisherLinkToLatchInfo
typedef std::set
< PendingConnectionPtr
S_PendingConnection
typedef std::vector
< CallbackInfoPtr
V_CallbackInfo
typedef std::vector
< PublisherLinkPtr > 
V_PublisherLink
typedef std::vector< std::pair
< const std::type_info
*, MessageDeserializerPtr > > 
V_TypeAndDeserializer

Private Member Functions

void addPublisherLink (const PublisherLinkPtr &link)
void dropAllConnections ()
Subscriptionoperator= (const Subscription &)
 Subscription (const Subscription &)

Private Attributes

V_TypeAndDeserializer cached_deserializers_
V_CallbackInfo callbacks_
boost::mutex callbacks_mutex_
std::string datatype_
bool dropped_
M_PublisherLinkToLatchInfo latched_messages_
std::string md5sum_
boost::mutex md5sum_mutex_
std::string name_
uint32_t nonconst_callbacks_
S_PendingConnection pending_connections_
boost::mutex pending_connections_mutex_
V_PublisherLink publisher_links_
boost::mutex publisher_links_mutex_
boost::mutex shutdown_mutex_
bool shutting_down_
TransportHints transport_hints_

Detailed Description

Manages a subscription on a single topic.

Definition at line 64 of file subscription.h.


Member Typedef Documentation

typedef boost::shared_ptr<CallbackInfo> ros::Subscription::CallbackInfoPtr [private]

Definition at line 203 of file subscription.h.

typedef std::map<PublisherLinkPtr, LatchInfo> ros::Subscription::M_PublisherLinkToLatchInfo [private]

Definition at line 236 of file subscription.h.

typedef std::map<std::string, std::string> ros::Subscription::M_string

Definition at line 101 of file subscription.h.

Definition at line 177 of file subscription.h.

Definition at line 218 of file subscription.h.

typedef std::vector<CallbackInfoPtr> ros::Subscription::V_CallbackInfo [private]

Definition at line 204 of file subscription.h.

typedef std::vector<PublisherLinkPtr> ros::Subscription::V_PublisherLink [private]

Definition at line 222 of file subscription.h.

typedef std::vector<std::pair<const std::type_info*, MessageDeserializerPtr> > ros::Subscription::V_TypeAndDeserializer [private]

Definition at line 239 of file subscription.h.


Constructor & Destructor Documentation

ros::Subscription::Subscription ( const std::string &  name,
const std::string &  md5sum,
const std::string &  datatype,
const TransportHints transport_hints 
)

Definition at line 69 of file subscription.cpp.

ros::Subscription::~Subscription (  )  [virtual]

Definition at line 80 of file subscription.cpp.

ros::Subscription::Subscription ( const Subscription  )  [private]

Member Function Documentation

bool ros::Subscription::addCallback ( const SubscriptionCallbackHelperPtr &  helper,
const std::string &  md5sum,
CallbackQueueInterface queue,
int32_t  queue_size,
const VoidConstPtr &  tracked_object,
bool  allow_concurrent_callbacks 
)

Definition at line 676 of file subscription.cpp.

void ros::Subscription::addLocalConnection ( const PublicationPtr &  pub  ) 

Definition at line 179 of file subscription.cpp.

void ros::Subscription::addPublisherLink ( const PublisherLinkPtr &  link  )  [private]

Definition at line 783 of file subscription.cpp.

const std::string ros::Subscription::datatype (  ) 

Definition at line 827 of file subscription.cpp.

void ros::Subscription::drop (  ) 

Terminate all our PublisherLinks.

Definition at line 149 of file subscription.cpp.

void ros::Subscription::dropAllConnections (  )  [private]

Definition at line 159 of file subscription.cpp.

void ros::Subscription::getInfo ( XmlRpc::XmlRpcValue info  ) 

Definition at line 126 of file subscription.cpp.

const std::string& ros::Subscription::getName (  )  const [inline]

Definition at line 117 of file subscription.h.

uint32_t ros::Subscription::getNumCallbacks (  )  const [inline]

Definition at line 118 of file subscription.h.

uint32_t ros::Subscription::getNumPublishers (  ) 

Definition at line 143 of file subscription.cpp.

void ros::Subscription::getPublishTypes ( bool &  ser,
bool &  nocopy,
const std::type_info &  ti 
)

Definition at line 804 of file subscription.cpp.

XmlRpcValue ros::Subscription::getStats (  ) 

Definition at line 96 of file subscription.cpp.

uint32_t ros::Subscription::handleMessage ( const SerializedMessage m,
bool  ser,
bool  nocopy,
const boost::shared_ptr< M_string > &  connection_header,
const PublisherLinkPtr &  link 
)

Called to notify that a new message has arrived from a publisher. Schedules the callback for invokation with the callback queue.

Definition at line 597 of file subscription.cpp.

void ros::Subscription::headerReceived ( const PublisherLinkPtr &  link,
const Header h 
)

Definition at line 774 of file subscription.cpp.

bool ros::Subscription::isDropped (  )  [inline]

Returns whether this Subscription has been dropped or not.

Definition at line 94 of file subscription.h.

const std::string ros::Subscription::md5sum (  ) 

Definition at line 832 of file subscription.cpp.

bool ros::Subscription::negotiateConnection ( const std::string &  xmlrpc_uri  ) 

Negotiates a connection with a publisher.

Parameters:
xmlrpc_uri The XMLRPC URI to connect to to negotiate the connection

Definition at line 340 of file subscription.cpp.

Subscription& ros::Subscription::operator= ( const Subscription  )  [private]
void ros::Subscription::pendingConnectionDone ( const PendingConnectionPtr pending_conn,
XmlRpc::XmlRpcValue result 
)

Definition at line 443 of file subscription.cpp.

bool ros::Subscription::pubUpdate ( const std::vector< std::string > &  pubs  ) 

Handle a publisher update list received from the master. Creates/drops PublisherLinks based on the list. Never handles new self-subscriptions.

Definition at line 207 of file subscription.cpp.

void ros::Subscription::removeCallback ( const SubscriptionCallbackHelperPtr &  helper  ) 

Definition at line 751 of file subscription.cpp.

void ros::Subscription::removePublisherLink ( const PublisherLinkPtr &  pub_link  ) 

Removes a subscriber from our list.

Definition at line 788 of file subscription.cpp.

void ros::Subscription::shutdown (  ) 

Terminate all our PublisherLinks and join our callback thread if it exists.

Definition at line 86 of file subscription.cpp.


Member Data Documentation

Definition at line 240 of file subscription.h.

Definition at line 211 of file subscription.h.

boost::mutex ros::Subscription::callbacks_mutex_ [private]

Definition at line 210 of file subscription.h.

std::string ros::Subscription::datatype_ [private]

Definition at line 209 of file subscription.h.

Definition at line 214 of file subscription.h.

Definition at line 237 of file subscription.h.

std::string ros::Subscription::md5sum_ [private]

Definition at line 208 of file subscription.h.

boost::mutex ros::Subscription::md5sum_mutex_ [private]

Definition at line 207 of file subscription.h.

std::string ros::Subscription::name_ [private]

Definition at line 206 of file subscription.h.

Definition at line 212 of file subscription.h.

Definition at line 219 of file subscription.h.

Definition at line 220 of file subscription.h.

Definition at line 223 of file subscription.h.

Definition at line 224 of file subscription.h.

boost::mutex ros::Subscription::shutdown_mutex_ [private]

Definition at line 216 of file subscription.h.

Definition at line 215 of file subscription.h.

Definition at line 226 of file subscription.h.


The documentation for this class was generated from the following files:
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roscpp
Author(s): Morgan Quigley mquigley@cs.stanford.edu, Josh Faust jfaust@willowgarage.com, Brian Gerkey gerkey@willowgarage.com, Troy Straszheim straszheim@willowgarage.com
autogenerated on Sat Mar 2 13:23:32 2013