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Scheduler returns metrics as a dictionary instead of a tuple of tuples (


### Problem
Scheduler returns metrics as a tuple of tuples (key, value). And later this tuple is transformed into a dictionary.
It is considered to use metrics to return to python part zipkin span info and dict type will be more convenient.

### Solution
Scheduler_metrics returns a store_dict  instead of store_tuple.
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cattibrie authored and illicitonion committed Feb 18, 2019
1 parent cb50136 commit 3da21654658be16375f3723409265755519d7b8e
@@ -278,8 +278,7 @@ def visualize_to_dir(self):
return self._visualize_to_dir

def _metrics(self, session):
metrics_val = self._native.lib.scheduler_metrics(self._scheduler, session)
return {k: v for k, v in self._from_value(metrics_val)}
return self._from_value(self._native.lib.scheduler_metrics(self._scheduler, session))

def with_fork_context(self, func):
"""See the rustdocs for `scheduler_fork_context` for more information."""
@@ -11,24 +11,18 @@ class PantsDaemonStats(object):
"""Tracks various stats about the daemon."""

def __init__(self):
self.target_root_size = 0
self.affected_targets_size = 0
self.affected_targets_file_count = 0
self.scheduler_metrics = {}

def set_scheduler_metrics(self, scheduler_metrics):
self.scheduler_metrics = scheduler_metrics

def set_target_root_size(self, size):
self.target_root_size = size
self.scheduler_metrics['target_root_size'] = size

def set_affected_targets_size(self, size):
self.affected_targets_size = size
self.scheduler_metrics['affected_targets_size'] = size

def get_all(self):
res = dict(self.scheduler_metrics)
'target_root_size': self.target_root_size,
'affected_targets_size': self.affected_targets_size,
return res
for key in ['target_root_size', 'affected_targets_size']:
self.scheduler_metrics.setdefault(key, 0)
return self.scheduler_metrics
@@ -82,7 +82,6 @@ pub fn store_set<I: Iterator<Item = Value>>(values: I) -> Value {
/// The underlying slice _must_ contain an even number of elements.
pub fn store_dict(keys_and_values_interleaved: &[(Value)]) -> Value {
if keys_and_values_interleaved.len() % 2 != 0 {
panic!("store_dict requires an even number of elements");
@@ -307,7 +307,8 @@ pub extern "C" fn scheduler_create(

/// Returns a Handle representing a tuple of tuples of metric name string and metric value int.
/// Returns a Handle representing a dictionary where key is metric name string and value is
/// metric value int.
pub extern "C" fn scheduler_metrics(
@@ -319,11 +320,9 @@ pub extern "C" fn scheduler_metrics(
let values = scheduler
.map(|(metric, value)| {
externs::store_tuple(&[externs::store_utf8(metric), externs::store_i64(value)])
.flat_map(|(metric, value)| vec![externs::store_utf8(metric), externs::store_i64(value)])

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