Browser APIs

CMLOG provides a set of C++ APIs for applications to retrieve messages previously logged in the database. The I/O requests sent from browsers to the server are in the form of cdevData that has start and end tagged values specifying the time interval within which the query is performed. In addition caller can also specify a selection rule which can be inserted into the outbound cdevData with tag queryMsg. Most of APIs are organized in a C++ class called cmlogBrowser. In addition there is one class called cmlogPacket which holds array of cmlog_cdevMessages. In spite of the complex nature of cmlog_cdevMessage, only a single member function getData() is used in the APIs. The following subsection will describe only related member functions of cmlogPacket and cmlog_cdevMessage.