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tapset::json − systemtap json tapset
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.
function::json_set_prefix(3stap), function::json_add_numeric_metric(3stap), function::json_add_string_metric(3stap), function::json_add_array(3stap), function::json_add_array_numeric_metric(3stap), function::json_add_array_string_metric(3stap), probe::json_data(3stap), macro::json_output_data_start(3stap), macro::json_output_string_value(3stap), macro::json_output_numeric_value(3stap), macro::json_output_array_string_value(3stap), macro::json_output_array_numeric_value(3stap), macro::json_output_data_end(3stap), stap(1), stapprobes(3stap)