Gazebo Transport

API Reference

13.4.0
gz::transport::log Namespace Reference

Classes

class  AllTopics
 Query for all the topics. More...
 
class  Batch
 Holds the result of a query for messages. More...
 
class  Descriptor
 The Descriptor class provides meta-information about what a log contains. This may be useful for determining QueryOptions or for generating a high-level overview of a Log's contents. More...
 
class  Log
 Interface to a log file. More...
 
class  Message
 Represents a message in a bag file. More...
 
class  MsgIter
 Implements iterator for reading messages. More...
 
class  Playback
 Initiates playback of Gazebo Transport topics This class makes it easy to play topics from a log file. More...
 
class  PlaybackHandle
 Handles the playback of Gazebo Transport topics. This class allows you to manage a log playback once it has started. You must hang onto the PlaybackHandle or else the playback will end early. More...
 
class  QualifiedTime
 Since time is continuous, it may be difficult to know the exact time stamp of a desired message. The QualifiedTime class provides a way to tailor how a time stamp is interpreted by the message query. More...
 
class  QualifiedTimeRange
 The QualifiedTimeRange class provides a pair of qualified times that represent a range. This is used to specify a desired time range to the BasicQueryOptions class. More...
 
class  QueryOptions
 The QueryOptions interface is used by Log::QueryMessages() to determine which messages are retrieved from the log file. More...
 
class  Recorder
 Records Gazebo Transport topics This class makes it easy to record topics to a log file. Responsibilities: topic name matching, time received tracking, multiple thread safety, subscribing to topics. More...
 
class  SqlParameter
 A class which contains a SQL statement parameter. SqlParameter can be useful for keeping SQL queries sanitized and avoid SQL injection. With C++17, it may be desirable to replace this class with std::variant. More...
 
struct  SqlStatement
 A statement for a SQL query. These are generated by the QueryOptions class to control how messages get queried from the log. More...
 
class  TimeRangeOption
 Base class which manages the time range settings for the native QueryOptions classes. More...
 
class  TopicList
 Specify a list of topics to query. More...
 
class  TopicPattern
 Specify a pattern of topics to query. More...
 

Typedefs

using PlaybackHandlePtr = std::shared_ptr< PlaybackHandle >
 

Enumerations

enum class  RecorderError : int64_t {
  SUCCESS = 0 , FAILED_TO_OPEN = -1 , FAILED_TO_SUBSCRIBE = -2 , ALREADY_RECORDING = -3 ,
  INVALID_TOPIC = -4 , TOPIC_NOT_FOUND = -5 , ALREADY_SUBSCRIBED_TO_TOPIC = -6
}
 

Variables

const std::string SchemaLocationEnvVar = "GZ_TRANSPORT_LOG_SQL_PATH"
 Name of Environment variable containing path to schema. More...
 

Typedef Documentation

◆ PlaybackHandlePtr

Enumeration Type Documentation

◆ RecorderError

enum RecorderError : int64_t
strong
Enumerator
SUCCESS 
FAILED_TO_OPEN 
FAILED_TO_SUBSCRIBE 
ALREADY_RECORDING 
INVALID_TOPIC 
TOPIC_NOT_FOUND 
ALREADY_SUBSCRIBED_TO_TOPIC 

Variable Documentation

◆ SchemaLocationEnvVar

const std::string SchemaLocationEnvVar = "GZ_TRANSPORT_LOG_SQL_PATH"

Name of Environment variable containing path to schema.