DESCRIPTION
The JSON tapset provides probes, functions, and macros to generate
a JSON metadata and data file. The JSON metadata file is located in
/proc/systemtap/MODULE/metadata.json. The JSON data file is located
in /proc/systemtap/MODULE/data.json. The JSON data file is updated
with current data every time the file is read.
- json_set_prefix
- Set the metric prefix.
-
See
function::json_set_prefix(3stap)
for details.
- json_add_numeric_metric
- Add a numeric metric
-
See
function::json_add_numeric_metric(3stap)
for details.
- json_add_string_metric
- Add a string metric
-
See
function::json_add_string_metric(3stap)
for details.
- json_add_array
- Add an array
-
See
function::json_add_array(3stap)
for details.
- json_add_array_numeric_metric
- Add a numeric metric to an array
-
See
function::json_add_array_numeric_metric(3stap)
for details.
- json_add_array_string_metric
- Add a string metric to an array
-
See
function::json_add_array_string_metric(3stap)
for details.
- json_data
- Fires whenever JSON data is wanted by a reader.
-
See probe::json_data(3stap)
for details.
- @json_output_data_start
- Start the json output.
-
See macro::json_output_data_start(3stap)
for details.
- @json_output_string_value
- Output a string value.
-
See macro::json_output_string_value(3stap)
for details.
- @json_output_numeric_value
- Output a numeric value.
-
See macro::json_output_numeric_value(3stap)
for details.
- @json_output_array_string_value
- Output a string value for metric in an array.
-
See macro::json_output_array_string_value(3stap)
for details.
- @json_output_array_numeric_value
- Output a numeric value for metric in an array.
-
See macro::json_output_array_numeric_value(3stap)
for details.
- @json_output_data_end
- End the json output.
-
See macro::json_output_data_end(3stap)
for details.