DQMEvent Namespace Reference

Typedefs
typedef std::map< std::string, std::vector< TObject * > >	TObjectTable

Detailed Description

The DQMEventMsgView class is used to view the DQM data messages that are exchanged between the filter units and the storage manager.

09-Feb-2007 - Initial Implementation DQM Event Message Format:

• Code (1 byte)
• Size (4 bytes)
• Protocol Version (4 bytes)
• Header Size (4 bytes)
• Run Number (4 bytes)
• Event Number at Update (4 bytes)
• Time stamp (8 bytes)
• Luminosity Section (4 bytes)
• Update Number (4 bytes)
• Compression Flag (4 bytes) | size of data before compression
• Filter Unit Process ID (4 bytes)
• Filter Unit Unique ID [GUID] (4 bytes)
• Merge Count (4 bytes)
• Release Tag Length (4 bytes)
• Release Tag (varies)
• Top-level Folder Name Length (4 bytes)
• Top-level Folder Name (varies)
• Number of Subfolders (4 bytes)
• Number of Monitor Elements in Subfolder I (4 bytes) | Repeated
• Subfolder I Name Length (4 bytes) | for each
• Subfolder I Name (varies) | subfolder
• DQM Event Data checksum (4 bytes)
• Host name length (1 byte)
• Host name (variable)
• DQM Event Data Length (4 bytes)
• DQM Event Data (varies)

Typedef Documentation

typedef std::map< std::string, std::vector<TObject *> > DQMEvent::TObjectTable

Definition at line 55 of file DQMEventMessage.h.