probe::json_data
名称
probe::json_data — Fires whenever JSON data is wanted by a reader.
Synopsis
json_data
Values
None
Context
This probe fires when the JSON data is about to be read. This probe must gather up data and then call the following macros to output the data in JSON format. First, @
json_output_data_start
must be called. That call is followed by one or more of the following (one call for each data item): @json_output_string_value
, @json_output_numeric_value
, @json_output_array_string_value
, and @json_output_array_numeric_value
. Finally @json_output_data_end
must be called.