mirror of
https://github.com/minio/minio.git
synced 2024-12-24 06:05:55 -05:00
vendor: Remove unused packages.
This commit is contained in:
Harshavardhana
parent
7de206cb85
commit
8828fd1e5c
380
vendor/github.com/facebookgo/httpdown/httpdown.go
generated
vendored
380
vendor/github.com/facebookgo/httpdown/httpdown.go
generated
vendored
@ -1,380 +0,0 @@
|
||||
// Package httpdown provides http.ConnState enabled graceful termination of
|
||||
// http.Server.
|
||||
package httpdown
|
||||
|
||||
import (
|
||||
"crypto/tls"
|
||||
"fmt"
|
||||
"log"
|
||||
"net"
|
||||
"net/http"
|
||||
"os"
|
||||
"os/signal"
|
||||
"sync"
|
||||
"syscall"
|
||||
"time"
|
||||
|
||||
"github.com/facebookgo/clock"
|
||||
"github.com/facebookgo/stats"
|
||||
)
|
||||
|
||||
const (
|
||||
defaultStopTimeout = time.Minute
|
||||
defaultKillTimeout = time.Minute
|
||||
)
|
||||
|
||||
// A Server allows encapsulates the process of accepting new connections and
|
||||
// serving them, and gracefully shutting down the listener without dropping
|
||||
// active connections.
|
||||
type Server interface {
|
||||
// Wait waits for the serving loop to finish. This will happen when Stop is
|
||||
// called, at which point it returns no error, or if there is an error in the
|
||||
// serving loop. You must call Wait after calling Serve or ListenAndServe.
|
||||
Wait() error
|
||||
|
||||
// Stop stops the listener. It will block until all connections have been
|
||||
// closed.
|
||||
Stop() error
|
||||
}
|
||||
|
||||
// HTTP defines the configuration for serving a http.Server. Multiple calls to
|
||||
// Serve or ListenAndServe can be made on the same HTTP instance. The default
|
||||
// timeouts of 1 minute each result in a maximum of 2 minutes before a Stop()
|
||||
// returns.
|
||||
type HTTP struct {
|
||||
// StopTimeout is the duration before we begin force closing connections.
|
||||
// Defaults to 1 minute.
|
||||
StopTimeout time.Duration
|
||||
|
||||
// KillTimeout is the duration before which we completely give up and abort
|
||||
// even though we still have connected clients. This is useful when a large
|
||||
// number of client connections exist and closing them can take a long time.
|
||||
// Note, this is in addition to the StopTimeout. Defaults to 1 minute.
|
||||
KillTimeout time.Duration
|
||||
|
||||
// Stats is optional. If provided, it will be used to record various metrics.
|
||||
Stats stats.Client
|
||||
|
||||
// Clock allows for testing timing related functionality. Do not specify this
|
||||
// in production code.
|
||||
Clock clock.Clock
|
||||
}
|
||||
|
||||
// Serve provides the low-level API which is useful if you're creating your own
|
||||
// net.Listener.
|
||||
func (h HTTP) Serve(s *http.Server, l net.Listener) Server {
|
||||
stopTimeout := h.StopTimeout
|
||||
if stopTimeout == 0 {
|
||||
stopTimeout = defaultStopTimeout
|
||||
}
|
||||
killTimeout := h.KillTimeout
|
||||
if killTimeout == 0 {
|
||||
killTimeout = defaultKillTimeout
|
||||
}
|
||||
klock := h.Clock
|
||||
if klock == nil {
|
||||
klock = clock.New()
|
||||
}
|
||||
|
||||
ss := &server{
|
||||
stopTimeout: stopTimeout,
|
||||
killTimeout: killTimeout,
|
||||
stats: h.Stats,
|
||||
clock: klock,
|
||||
oldConnState: s.ConnState,
|
||||
listener: l,
|
||||
server: s,
|
||||
serveDone: make(chan struct{}),
|
||||
serveErr: make(chan error, 1),
|
||||
new: make(chan net.Conn),
|
||||
active: make(chan net.Conn),
|
||||
idle: make(chan net.Conn),
|
||||
closed: make(chan net.Conn),
|
||||
stop: make(chan chan struct{}),
|
||||
kill: make(chan chan struct{}),
|
||||
}
|
||||
s.ConnState = ss.connState
|
||||
go ss.manage()
|
||||
go ss.serve()
|
||||
return ss
|
||||
}
|
||||
|
||||
// ListenAndServe returns a Server for the given http.Server. It is equivalent
|
||||
// to ListenAndServe from the standard library, but returns immediately.
|
||||
// Requests will be accepted in a background goroutine. If the http.Server has
|
||||
// a non-nil TLSConfig, a TLS enabled listener will be setup.
|
||||
func (h HTTP) ListenAndServe(s *http.Server) (Server, error) {
|
||||
addr := s.Addr
|
||||
if addr == "" {
|
||||
if s.TLSConfig == nil {
|
||||
addr = ":http"
|
||||
} else {
|
||||
addr = ":https"
|
||||
}
|
||||
}
|
||||
l, err := net.Listen("tcp", addr)
|
||||
if err != nil {
|
||||
stats.BumpSum(h.Stats, "listen.error", 1)
|
||||
return nil, err
|
||||
}
|
||||
if s.TLSConfig != nil {
|
||||
l = tls.NewListener(l, s.TLSConfig)
|
||||
}
|
||||
return h.Serve(s, l), nil
|
||||
}
|
||||
|
||||
// server manages the serving process and allows for gracefully stopping it.
|
||||
type server struct {
|
||||
stopTimeout time.Duration
|
||||
killTimeout time.Duration
|
||||
stats stats.Client
|
||||
clock clock.Clock
|
||||
|
||||
oldConnState func(net.Conn, http.ConnState)
|
||||
server *http.Server
|
||||
serveDone chan struct{}
|
||||
serveErr chan error
|
||||
listener net.Listener
|
||||
|
||||
new chan net.Conn
|
||||
active chan net.Conn
|
||||
idle chan net.Conn
|
||||
closed chan net.Conn
|
||||
stop chan chan struct{}
|
||||
kill chan chan struct{}
|
||||
|
||||
stopOnce sync.Once
|
||||
stopErr error
|
||||
}
|
||||
|
||||
func (s *server) connState(c net.Conn, cs http.ConnState) {
|
||||
if s.oldConnState != nil {
|
||||
s.oldConnState(c, cs)
|
||||
}
|
||||
|
||||
switch cs {
|
||||
case http.StateNew:
|
||||
s.new <- c
|
||||
case http.StateActive:
|
||||
s.active <- c
|
||||
case http.StateIdle:
|
||||
s.idle <- c
|
||||
case http.StateHijacked, http.StateClosed:
|
||||
s.closed <- c
|
||||
}
|
||||
}
|
||||
|
||||
func (s *server) manage() {
|
||||
defer func() {
|
||||
close(s.new)
|
||||
close(s.active)
|
||||
close(s.idle)
|
||||
close(s.closed)
|
||||
close(s.stop)
|
||||
close(s.kill)
|
||||
}()
|
||||
|
||||
var stopDone chan struct{}
|
||||
|
||||
conns := map[net.Conn]http.ConnState{}
|
||||
var countNew, countActive, countIdle float64
|
||||
|
||||
// decConn decrements the count associated with the current state of the
|
||||
// given connection.
|
||||
decConn := func(c net.Conn) {
|
||||
switch conns[c] {
|
||||
default:
|
||||
panic(fmt.Errorf("unknown existing connection: %s", c))
|
||||
case http.StateNew:
|
||||
countNew--
|
||||
case http.StateActive:
|
||||
countActive--
|
||||
case http.StateIdle:
|
||||
countIdle--
|
||||
}
|
||||
}
|
||||
|
||||
// setup a ticker to report various values every minute. if we don't have a
|
||||
// Stats implementation provided, we Stop it so it never ticks.
|
||||
statsTicker := s.clock.Ticker(time.Minute)
|
||||
if s.stats == nil {
|
||||
statsTicker.Stop()
|
||||
}
|
||||
|
||||
for {
|
||||
select {
|
||||
case <-statsTicker.C:
|
||||
// we'll only get here when s.stats is not nil
|
||||
s.stats.BumpAvg("http-state.new", countNew)
|
||||
s.stats.BumpAvg("http-state.active", countActive)
|
||||
s.stats.BumpAvg("http-state.idle", countIdle)
|
||||
s.stats.BumpAvg("http-state.total", countNew+countActive+countIdle)
|
||||
case c := <-s.new:
|
||||
conns[c] = http.StateNew
|
||||
countNew++
|
||||
case c := <-s.active:
|
||||
decConn(c)
|
||||
countActive++
|
||||
|
||||
conns[c] = http.StateActive
|
||||
case c := <-s.idle:
|
||||
decConn(c)
|
||||
countIdle++
|
||||
|
||||
conns[c] = http.StateIdle
|
||||
|
||||
// if we're already stopping, close it
|
||||
if stopDone != nil {
|
||||
c.Close()
|
||||
}
|
||||
case c := <-s.closed:
|
||||
stats.BumpSum(s.stats, "conn.closed", 1)
|
||||
decConn(c)
|
||||
delete(conns, c)
|
||||
|
||||
// if we're waiting to stop and are all empty, we just closed the last
|
||||
// connection and we're done.
|
||||
if stopDone != nil && len(conns) == 0 {
|
||||
close(stopDone)
|
||||
return
|
||||
}
|
||||
case stopDone = <-s.stop:
|
||||
// if we're already all empty, we're already done
|
||||
if len(conns) == 0 {
|
||||
close(stopDone)
|
||||
return
|
||||
}
|
||||
|
||||
// close current idle connections right away
|
||||
for c, cs := range conns {
|
||||
if cs == http.StateIdle {
|
||||
c.Close()
|
||||
}
|
||||
}
|
||||
|
||||
// continue the loop and wait for all the ConnState updates which will
|
||||
// eventually close(stopDone) and return from this goroutine.
|
||||
|
||||
case killDone := <-s.kill:
|
||||
// force close all connections
|
||||
stats.BumpSum(s.stats, "kill.conn.count", float64(len(conns)))
|
||||
for c := range conns {
|
||||
c.Close()
|
||||
}
|
||||
|
||||
// don't block the kill.
|
||||
close(killDone)
|
||||
|
||||
// continue the loop and we wait for all the ConnState updates and will
|
||||
// return from this goroutine when we're all done. otherwise we'll try to
|
||||
// send those ConnState updates on closed channels.
|
||||
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (s *server) serve() {
|
||||
stats.BumpSum(s.stats, "serve", 1)
|
||||
s.serveErr <- s.server.Serve(s.listener)
|
||||
close(s.serveDone)
|
||||
close(s.serveErr)
|
||||
}
|
||||
|
||||
func (s *server) Wait() error {
|
||||
if err := <-s.serveErr; !isUseOfClosedError(err) {
|
||||
return err
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (s *server) Stop() error {
|
||||
s.stopOnce.Do(func() {
|
||||
defer stats.BumpTime(s.stats, "stop.time").End()
|
||||
stats.BumpSum(s.stats, "stop", 1)
|
||||
|
||||
// first disable keep-alive for new connections
|
||||
s.server.SetKeepAlivesEnabled(false)
|
||||
|
||||
// then close the listener so new connections can't connect come thru
|
||||
closeErr := s.listener.Close()
|
||||
<-s.serveDone
|
||||
|
||||
// then trigger the background goroutine to stop and wait for it
|
||||
stopDone := make(chan struct{})
|
||||
s.stop <- stopDone
|
||||
|
||||
// wait for stop
|
||||
select {
|
||||
case <-stopDone:
|
||||
case <-s.clock.After(s.stopTimeout):
|
||||
defer stats.BumpTime(s.stats, "kill.time").End()
|
||||
stats.BumpSum(s.stats, "kill", 1)
|
||||
|
||||
// stop timed out, wait for kill
|
||||
killDone := make(chan struct{})
|
||||
s.kill <- killDone
|
||||
select {
|
||||
case <-killDone:
|
||||
case <-s.clock.After(s.killTimeout):
|
||||
// kill timed out, give up
|
||||
stats.BumpSum(s.stats, "kill.timeout", 1)
|
||||
}
|
||||
}
|
||||
|
||||
if closeErr != nil && !isUseOfClosedError(closeErr) {
|
||||
stats.BumpSum(s.stats, "listener.close.error", 1)
|
||||
s.stopErr = closeErr
|
||||
}
|
||||
})
|
||||
return s.stopErr
|
||||
}
|
||||
|
||||
func isUseOfClosedError(err error) bool {
|
||||
if err == nil {
|
||||
return false
|
||||
}
|
||||
if opErr, ok := err.(*net.OpError); ok {
|
||||
err = opErr.Err
|
||||
}
|
||||
return err.Error() == "use of closed network connection"
|
||||
}
|
||||
|
||||
// ListenAndServe is a convenience function to serve and wait for a SIGTERM
|
||||
// or SIGINT before shutting down.
|
||||
func ListenAndServe(s *http.Server, hd *HTTP) error {
|
||||
if hd == nil {
|
||||
hd = &HTTP{}
|
||||
}
|
||||
hs, err := hd.ListenAndServe(s)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
log.Printf("serving on http://%s/ with pid %d\n", s.Addr, os.Getpid())
|
||||
|
||||
waiterr := make(chan error, 1)
|
||||
go func() {
|
||||
defer close(waiterr)
|
||||
waiterr <- hs.Wait()
|
||||
}()
|
||||
|
||||
signals := make(chan os.Signal, 10)
|
||||
signal.Notify(signals, syscall.SIGTERM, syscall.SIGINT)
|
||||
|
||||
select {
|
||||
case err := <-waiterr:
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
case s := <-signals:
|
||||
signal.Stop(signals)
|
||||
log.Printf("signal received: %s\n", s)
|
||||
if err := hs.Stop(); err != nil {
|
||||
return err
|
||||
}
|
||||
if err := <-waiterr; err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
log.Println("exiting")
|
||||
return nil
|
||||
}
|
||||
30
vendor/github.com/facebookgo/httpdown/license
generated
vendored
30
vendor/github.com/facebookgo/httpdown/license
generated
vendored
@ -1,30 +0,0 @@
|
||||
BSD License
|
||||
|
||||
For httpdown software
|
||||
|
||||
Copyright (c) 2015, Facebook, Inc. All rights reserved.
|
||||
|
||||
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 Facebook 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 HOLDER 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.
|
||||
33
vendor/github.com/facebookgo/httpdown/patents
generated
vendored
33
vendor/github.com/facebookgo/httpdown/patents
generated
vendored
@ -1,33 +0,0 @@
|
||||
Additional Grant of Patent Rights Version 2
|
||||
|
||||
"Software" means the httpdown software distributed by Facebook, Inc.
|
||||
|
||||
Facebook, Inc. ("Facebook") hereby grants to each recipient of the Software
|
||||
("you") a perpetual, worldwide, royalty-free, non-exclusive, irrevocable
|
||||
(subject to the termination provision below) license under any Necessary
|
||||
Claims, to make, have made, use, sell, offer to sell, import, and otherwise
|
||||
transfer the Software. For avoidance of doubt, no license is granted under
|
||||
Facebook’s rights in any patent claims that are infringed by (i) modifications
|
||||
to the Software made by you or any third party or (ii) the Software in
|
||||
combination with any software or other technology.
|
||||
|
||||
The license granted hereunder will terminate, automatically and without notice,
|
||||
if you (or any of your subsidiaries, corporate affiliates or agents) initiate
|
||||
directly or indirectly, or take a direct financial interest in, any Patent
|
||||
Assertion: (i) against Facebook or any of its subsidiaries or corporate
|
||||
affiliates, (ii) against any party if such Patent Assertion arises in whole or
|
||||
in part from any software, technology, product or service of Facebook or any of
|
||||
its subsidiaries or corporate affiliates, or (iii) against any party relating
|
||||
to the Software. Notwithstanding the foregoing, if Facebook or any of its
|
||||
subsidiaries or corporate affiliates files a lawsuit alleging patent
|
||||
infringement against you in the first instance, and you respond by filing a
|
||||
patent infringement counterclaim in that lawsuit against that party that is
|
||||
unrelated to the Software, the license granted hereunder will not terminate
|
||||
under section (i) of this paragraph due to such counterclaim.
|
||||
|
||||
A "Necessary Claim" is a claim of a patent owned by Facebook that is
|
||||
necessarily infringed by the Software standing alone.
|
||||
|
||||
A "Patent Assertion" is any lawsuit or other action alleging direct, indirect,
|
||||
or contributory infringement or inducement to infringe any patent, including a
|
||||
cross-claim or counterclaim.
|
||||
41
vendor/github.com/facebookgo/httpdown/readme.md
generated
vendored
41
vendor/github.com/facebookgo/httpdown/readme.md
generated
vendored
@ -1,41 +0,0 @@
|
||||
httpdown [](https://travis-ci.org/facebookgo/httpdown)
|
||||
========
|
||||
|
||||
Documentation: https://godoc.org/github.com/facebookgo/httpdown
|
||||
|
||||
Package httpdown provides a library that makes it easy to build a HTTP server
|
||||
that can be shutdown gracefully (that is, without dropping any connections).
|
||||
|
||||
If you want graceful restart and not just graceful shutdown, look at the
|
||||
[grace](https://github.com/facebookgo/grace) package which uses this package
|
||||
underneath but also provides graceful restart.
|
||||
|
||||
Usage
|
||||
-----
|
||||
|
||||
Demo HTTP Server with graceful termination:
|
||||
https://github.com/facebookgo/httpdown/blob/master/httpdown_example/main.go
|
||||
|
||||
1. Install the demo application
|
||||
|
||||
go get github.com/facebookgo/httpdown/httpdown_example
|
||||
|
||||
1. Start it in the first terminal
|
||||
|
||||
httpdown_example
|
||||
|
||||
This will output something like:
|
||||
|
||||
2014/11/18 21:57:50 serving on http://127.0.0.1:8080/ with pid 17
|
||||
|
||||
1. In a second terminal start a slow HTTP request
|
||||
|
||||
curl 'http://localhost:8080/?duration=20s'
|
||||
|
||||
1. In a third terminal trigger a graceful shutdown (using the pid from your output):
|
||||
|
||||
kill -TERM 17
|
||||
|
||||
This will demonstrate that the slow request was served before the server was
|
||||
shutdown. You could also have used `Ctrl-C` instead of `kill` as the example
|
||||
application triggers graceful shutdown on TERM or INT signals.
|
||||
30
vendor/github.com/facebookgo/stats/license
generated
vendored
30
vendor/github.com/facebookgo/stats/license
generated
vendored
@ -1,30 +0,0 @@
|
||||
BSD License
|
||||
|
||||
For stats software
|
||||
|
||||
Copyright (c) 2015, Facebook, Inc. All rights reserved.
|
||||
|
||||
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 Facebook 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 HOLDER 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.
|
||||
33
vendor/github.com/facebookgo/stats/patents
generated
vendored
33
vendor/github.com/facebookgo/stats/patents
generated
vendored
@ -1,33 +0,0 @@
|
||||
Additional Grant of Patent Rights Version 2
|
||||
|
||||
"Software" means the stats software distributed by Facebook, Inc.
|
||||
|
||||
Facebook, Inc. ("Facebook") hereby grants to each recipient of the Software
|
||||
("you") a perpetual, worldwide, royalty-free, non-exclusive, irrevocable
|
||||
(subject to the termination provision below) license under any Necessary
|
||||
Claims, to make, have made, use, sell, offer to sell, import, and otherwise
|
||||
transfer the Software. For avoidance of doubt, no license is granted under
|
||||
Facebook’s rights in any patent claims that are infringed by (i) modifications
|
||||
to the Software made by you or any third party or (ii) the Software in
|
||||
combination with any software or other technology.
|
||||
|
||||
The license granted hereunder will terminate, automatically and without notice,
|
||||
if you (or any of your subsidiaries, corporate affiliates or agents) initiate
|
||||
directly or indirectly, or take a direct financial interest in, any Patent
|
||||
Assertion: (i) against Facebook or any of its subsidiaries or corporate
|
||||
affiliates, (ii) against any party if such Patent Assertion arises in whole or
|
||||
in part from any software, technology, product or service of Facebook or any of
|
||||
its subsidiaries or corporate affiliates, or (iii) against any party relating
|
||||
to the Software. Notwithstanding the foregoing, if Facebook or any of its
|
||||
subsidiaries or corporate affiliates files a lawsuit alleging patent
|
||||
infringement against you in the first instance, and you respond by filing a
|
||||
patent infringement counterclaim in that lawsuit against that party that is
|
||||
unrelated to the Software, the license granted hereunder will not terminate
|
||||
under section (i) of this paragraph due to such counterclaim.
|
||||
|
||||
A "Necessary Claim" is a claim of a patent owned by Facebook that is
|
||||
necessarily infringed by the Software standing alone.
|
||||
|
||||
A "Patent Assertion" is any lawsuit or other action alleging direct, indirect,
|
||||
or contributory infringement or inducement to infringe any patent, including a
|
||||
cross-claim or counterclaim.
|
||||
4
vendor/github.com/facebookgo/stats/readme.md
generated
vendored
4
vendor/github.com/facebookgo/stats/readme.md
generated
vendored
@ -1,4 +0,0 @@
|
||||
stats [](https://travis-ci.org/facebookgo/stats)
|
||||
=====
|
||||
|
||||
Documentation: https://godoc.org/github.com/facebookgo/stats
|
||||
166
vendor/github.com/facebookgo/stats/stats.go
generated
vendored
166
vendor/github.com/facebookgo/stats/stats.go
generated
vendored
@ -1,166 +0,0 @@
|
||||
// Package stats defines a lightweight interface for collecting statistics. It
|
||||
// doesn't provide an implementation, just the shared interface.
|
||||
package stats
|
||||
|
||||
// Client provides methods to collection statistics.
|
||||
type Client interface {
|
||||
// BumpAvg bumps the average for the given key.
|
||||
BumpAvg(key string, val float64)
|
||||
|
||||
// BumpSum bumps the sum for the given key.
|
||||
BumpSum(key string, val float64)
|
||||
|
||||
// BumpHistogram bumps the histogram for the given key.
|
||||
BumpHistogram(key string, val float64)
|
||||
|
||||
// BumpTime is a special version of BumpHistogram which is specialized for
|
||||
// timers. Calling it starts the timer, and it returns a value on which End()
|
||||
// can be called to indicate finishing the timer. A convenient way of
|
||||
// recording the duration of a function is calling it like such at the top of
|
||||
// the function:
|
||||
//
|
||||
// defer s.BumpTime("my.function").End()
|
||||
BumpTime(key string) interface {
|
||||
End()
|
||||
}
|
||||
}
|
||||
|
||||
// PrefixClient adds multiple keys for the same value, with each prefix
|
||||
// added to the key and calls the underlying client.
|
||||
func PrefixClient(prefixes []string, client Client) Client {
|
||||
return &prefixClient{
|
||||
Prefixes: prefixes,
|
||||
Client: client,
|
||||
}
|
||||
}
|
||||
|
||||
type prefixClient struct {
|
||||
Prefixes []string
|
||||
Client Client
|
||||
}
|
||||
|
||||
func (p *prefixClient) BumpAvg(key string, val float64) {
|
||||
for _, prefix := range p.Prefixes {
|
||||
p.Client.BumpAvg(prefix+key, val)
|
||||
}
|
||||
}
|
||||
|
||||
func (p *prefixClient) BumpSum(key string, val float64) {
|
||||
for _, prefix := range p.Prefixes {
|
||||
p.Client.BumpSum(prefix+key, val)
|
||||
}
|
||||
}
|
||||
|
||||
func (p *prefixClient) BumpHistogram(key string, val float64) {
|
||||
for _, prefix := range p.Prefixes {
|
||||
p.Client.BumpHistogram(prefix+key, val)
|
||||
}
|
||||
}
|
||||
|
||||
func (p *prefixClient) BumpTime(key string) interface {
|
||||
End()
|
||||
} {
|
||||
var m multiEnder
|
||||
for _, prefix := range p.Prefixes {
|
||||
m = append(m, p.Client.BumpTime(prefix+key))
|
||||
}
|
||||
return m
|
||||
}
|
||||
|
||||
// multiEnder combines many enders together.
|
||||
type multiEnder []interface {
|
||||
End()
|
||||
}
|
||||
|
||||
func (m multiEnder) End() {
|
||||
for _, e := range m {
|
||||
e.End()
|
||||
}
|
||||
}
|
||||
|
||||
// HookClient is useful for testing. It provides optional hooks for each
|
||||
// expected method in the interface, which if provided will be called. If a
|
||||
// hook is not provided, it will be ignored.
|
||||
type HookClient struct {
|
||||
BumpAvgHook func(key string, val float64)
|
||||
BumpSumHook func(key string, val float64)
|
||||
BumpHistogramHook func(key string, val float64)
|
||||
BumpTimeHook func(key string) interface {
|
||||
End()
|
||||
}
|
||||
}
|
||||
|
||||
// BumpAvg will call BumpAvgHook if defined.
|
||||
func (c *HookClient) BumpAvg(key string, val float64) {
|
||||
if c.BumpAvgHook != nil {
|
||||
c.BumpAvgHook(key, val)
|
||||
}
|
||||
}
|
||||
|
||||
// BumpSum will call BumpSumHook if defined.
|
||||
func (c *HookClient) BumpSum(key string, val float64) {
|
||||
if c.BumpSumHook != nil {
|
||||
c.BumpSumHook(key, val)
|
||||
}
|
||||
}
|
||||
|
||||
// BumpHistogram will call BumpHistogramHook if defined.
|
||||
func (c *HookClient) BumpHistogram(key string, val float64) {
|
||||
if c.BumpHistogramHook != nil {
|
||||
c.BumpHistogramHook(key, val)
|
||||
}
|
||||
}
|
||||
|
||||
// BumpTime will call BumpTimeHook if defined.
|
||||
func (c *HookClient) BumpTime(key string) interface {
|
||||
End()
|
||||
} {
|
||||
if c.BumpTimeHook != nil {
|
||||
return c.BumpTimeHook(key)
|
||||
}
|
||||
return NoOpEnd
|
||||
}
|
||||
|
||||
type noOpEnd struct{}
|
||||
|
||||
func (n noOpEnd) End() {}
|
||||
|
||||
// NoOpEnd provides a dummy value for use in tests as valid return value for
|
||||
// BumpTime().
|
||||
var NoOpEnd = noOpEnd{}
|
||||
|
||||
// BumpAvg calls BumpAvg on the Client if it isn't nil. This is useful when a
|
||||
// component has an optional stats.Client.
|
||||
func BumpAvg(c Client, key string, val float64) {
|
||||
if c != nil {
|
||||
c.BumpAvg(key, val)
|
||||
}
|
||||
}
|
||||
|
||||
// BumpSum calls BumpSum on the Client if it isn't nil. This is useful when a
|
||||
// component has an optional stats.Client.
|
||||
func BumpSum(c Client, key string, val float64) {
|
||||
if c != nil {
|
||||
c.BumpSum(key, val)
|
||||
}
|
||||
}
|
||||
|
||||
// BumpHistogram calls BumpHistogram on the Client if it isn't nil. This is
|
||||
// useful when a component has an optional stats.Client.
|
||||
func BumpHistogram(c Client, key string, val float64) {
|
||||
if c != nil {
|
||||
c.BumpHistogram(key, val)
|
||||
}
|
||||
}
|
||||
|
||||
// BumpTime calls BumpTime on the Client if it isn't nil. If the Client is nil
|
||||
// it still returns a valid return value which will be a no-op. This is useful
|
||||
// when a component has an optional stats.Client.
|
||||
func BumpTime(c Client, key string) interface {
|
||||
End()
|
||||
} {
|
||||
if c != nil {
|
||||
return c.BumpTime(key)
|
||||
}
|
||||
return NoOpEnd
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user