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author | Anton Evangelatov <anton.evangelatov@gmail.com> | 2018-07-13 23:40:28 +0800 |
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committer | Balint Gabor <balint.g@gmail.com> | 2018-07-13 23:40:28 +0800 |
commit | 7c9314f231a7ddffbbbc5fec16c65519a0121eeb (patch) | |
tree | dbc4021b66ee8968ad747036741fac7e1b972a39 /vendor/github.com/uber/jaeger-lib/metrics/stopwatch.go | |
parent | f7d3678c28c4b92e45a458e4785bd0f1cdc20e34 (diff) | |
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swarm: integrate OpenTracing; propagate ctx to internal APIs (#17169)
* swarm: propagate ctx, enable opentracing
* swarm/tracing: log error when tracing is misconfigured
Diffstat (limited to 'vendor/github.com/uber/jaeger-lib/metrics/stopwatch.go')
-rw-r--r-- | vendor/github.com/uber/jaeger-lib/metrics/stopwatch.go | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/vendor/github.com/uber/jaeger-lib/metrics/stopwatch.go b/vendor/github.com/uber/jaeger-lib/metrics/stopwatch.go new file mode 100644 index 000000000..4a8abdb53 --- /dev/null +++ b/vendor/github.com/uber/jaeger-lib/metrics/stopwatch.go @@ -0,0 +1,43 @@ +// Copyright (c) 2017 Uber Technologies, Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package metrics + +import ( + "time" +) + +// StartStopwatch begins recording the executing time of an event, returning +// a Stopwatch that should be used to stop the recording the time for +// that event. Multiple events can be occurring simultaneously each +// represented by different active Stopwatches +func StartStopwatch(timer Timer) Stopwatch { + return Stopwatch{t: timer, start: time.Now()} +} + +// A Stopwatch tracks the execution time of a specific event +type Stopwatch struct { + t Timer + start time.Time +} + +// Stop stops executing of the stopwatch and records the amount of elapsed time +func (s Stopwatch) Stop() { + s.t.Record(s.ElapsedTime()) +} + +// ElapsedTime returns the amount of elapsed time (in time.Duration) +func (s Stopwatch) ElapsedTime() time.Duration { + return time.Since(s.start) +} |