mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-10-25 06:22:18 +00:00
acc333c40b
When GTS is running in a container runtime which has configured CPU or memory limits or under an init system that uses cgroups to impose CPU and memory limits the values the Go runtime sees for GOMAXPROCS and GOMEMLIMIT are still based on the host resources, not the cgroup. At least for the throttling middlewares which use GOMAXPROCS to configure their queue size, this can result in GTS running with values too big compared to the resources that will actuall be available to it. This introduces 2 dependencies which can pick up resource contraints from the current cgroup and tune the Go runtime accordingly. This should result in the different queues being appropriately sized and in general more predictable performance. These dependencies are a no-op on non-Linux systems or if running in a cgroup that doesn't set a limit on CPU or memory. The automatic tuning of GOMEMLIMIT can be disabled by either explicitly setting GOMEMLIMIT yourself or by setting AUTOMEMLIMIT=off. The automatic tuning of GOMAXPROCS can similarly be counteracted by setting GOMAXPROCS yourself.
114 lines
4.2 KiB
Go
114 lines
4.2 KiB
Go
// Go support for Protocol Buffers - Google's data interchange format
|
|
//
|
|
// Copyright 2016 The Go Authors. All rights reserved.
|
|
// https://github.com/golang/protobuf
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are
|
|
// met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
// * Redistributions in binary form must reproduce the above
|
|
// copyright notice, this list of conditions and the following disclaimer
|
|
// in the documentation and/or other materials provided with the
|
|
// distribution.
|
|
// * Neither the name of Google Inc. nor the names of its
|
|
// contributors may be used to endorse or promote products derived from
|
|
// this software without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
package proto
|
|
|
|
// This file implements operations on google.protobuf.Timestamp.
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"time"
|
|
)
|
|
|
|
const (
|
|
// Seconds field of the earliest valid Timestamp.
|
|
// This is time.Date(1, 1, 1, 0, 0, 0, 0, time.UTC).Unix().
|
|
minValidSeconds = -62135596800
|
|
// Seconds field just after the latest valid Timestamp.
|
|
// This is time.Date(10000, 1, 1, 0, 0, 0, 0, time.UTC).Unix().
|
|
maxValidSeconds = 253402300800
|
|
)
|
|
|
|
// validateTimestamp determines whether a Timestamp is valid.
|
|
// A valid timestamp represents a time in the range
|
|
// [0001-01-01, 10000-01-01) and has a Nanos field
|
|
// in the range [0, 1e9).
|
|
//
|
|
// If the Timestamp is valid, validateTimestamp returns nil.
|
|
// Otherwise, it returns an error that describes
|
|
// the problem.
|
|
//
|
|
// Every valid Timestamp can be represented by a time.Time, but the converse is not true.
|
|
func validateTimestamp(ts *timestamp) error {
|
|
if ts == nil {
|
|
return errors.New("timestamp: nil Timestamp")
|
|
}
|
|
if ts.Seconds < minValidSeconds {
|
|
return fmt.Errorf("timestamp: %#v before 0001-01-01", ts)
|
|
}
|
|
if ts.Seconds >= maxValidSeconds {
|
|
return fmt.Errorf("timestamp: %#v after 10000-01-01", ts)
|
|
}
|
|
if ts.Nanos < 0 || ts.Nanos >= 1e9 {
|
|
return fmt.Errorf("timestamp: %#v: nanos not in range [0, 1e9)", ts)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// TimestampFromProto converts a google.protobuf.Timestamp proto to a time.Time.
|
|
// It returns an error if the argument is invalid.
|
|
//
|
|
// Unlike most Go functions, if Timestamp returns an error, the first return value
|
|
// is not the zero time.Time. Instead, it is the value obtained from the
|
|
// time.Unix function when passed the contents of the Timestamp, in the UTC
|
|
// locale. This may or may not be a meaningful time; many invalid Timestamps
|
|
// do map to valid time.Times.
|
|
//
|
|
// A nil Timestamp returns an error. The first return value in that case is
|
|
// undefined.
|
|
func timestampFromProto(ts *timestamp) (time.Time, error) {
|
|
// Don't return the zero value on error, because corresponds to a valid
|
|
// timestamp. Instead return whatever time.Unix gives us.
|
|
var t time.Time
|
|
if ts == nil {
|
|
t = time.Unix(0, 0).UTC() // treat nil like the empty Timestamp
|
|
} else {
|
|
t = time.Unix(ts.Seconds, int64(ts.Nanos)).UTC()
|
|
}
|
|
return t, validateTimestamp(ts)
|
|
}
|
|
|
|
// TimestampProto converts the time.Time to a google.protobuf.Timestamp proto.
|
|
// It returns an error if the resulting Timestamp is invalid.
|
|
func timestampProto(t time.Time) (*timestamp, error) {
|
|
seconds := t.Unix()
|
|
nanos := int32(t.Sub(time.Unix(seconds, 0)))
|
|
ts := ×tamp{
|
|
Seconds: seconds,
|
|
Nanos: nanos,
|
|
}
|
|
if err := validateTimestamp(ts); err != nil {
|
|
return nil, err
|
|
}
|
|
return ts, nil
|
|
}
|