Type Definitions

The data tracing facility defines three data structures: dt is the main object associated with a trace (it manages the trace buffers and output file); dthdr keeps track of the numbers and sizes of trace buffers written to the output file; and dtpost manages the postamble list (postamble buffers are written to the trace file after the trace has completed).

 
		typedef struct dt_object_struct {

				char                      		*buffer;

				char                      		*current;

				char                      		*last;

				char                      		*traceName;

				int                       		fileSize;

				dthdr                     		fileHdr;

				dtpost                    		*post;

				int                       		numPost;

				dtCloseFunc               		closeFunc;

				void                      		*closeArg;

				struct dt_object_struct 		*next;

		} dt;

		typedef struct dt_filehdr_struct {

				int 		version;

				int 		bufferSize;

				int 		numberBuffers;

				int 		lastBufferIdx;

				int 		lastBufferSize;

		} dthdr;

		typedef struct dt_postamble_struct {

				char                         		*buffer;

				int                          		size;

				struct dt_postamble_struct 		*next;

		} dtpost;