INFORMIX
DataBlade API Programmer's Manual
Chapter 10: Tracing
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 The DataBlade API provides simple tools for inserting both plain and internationalized traces in code.

Trace messages are grouped into user-defined trace classes. These classes enable you to treat related messages in the same way. The DataBlade API provides a function that sets a trace class level, which determines how heavy you want tracing of that class to be.

Each tracepoint is assigned a trace class and a threshold. If a tracepoint threshold is not greater than the current trace class level, the message writes to the output file.

The simplest scheme is to have only two trace classes: tracing and no tracing. In this scheme, any tracepoint with a low enough threshold will print; all others will not. A more complex scheme could have four states: no tracing, light tracing, medium tracing, and heavy tracing.

Tracing is available only in the server.



DataBlade API Programmer's Manual, version 9.1
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