add pprof vendor

vendor/github.com/gin-contrib/pprof/.gitignore

@@ -0,0 +1,25 @@
+# Compiled Object files, Static and Dynamic libs (Shared Objects)
+*.o
+*.a
+*.so
+
+# Folders
+_obj
+_test
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+_testmain.go
+
+*.exe
+*.test
+*.prof
+coverage*

vendor/github.com/gin-contrib/pprof/.travis.yml

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+language: go
+sudo: false
+
+go:
+  - 1.6.x
+  - 1.7.x
+  - 1.8.x
+  - tip
+
+script:
+  - go test -v -covermode=atomic -coverprofile=coverage.out
+
+after_success:
+  - bash <(curl -s https://codecov.io/bash)
+
+notifications:
+  webhooks:
+    urls:
+      - https://webhooks.gitter.im/e/acc2c57482e94b44f557
+    on_success: change
+    on_failure: always
+    on_start: false

vendor/github.com/gin-contrib/pprof/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2016 Gin-Gonic
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

vendor/github.com/gin-contrib/pprof/README.md

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+# pprof
+
+[![Build Status](https://travis-ci.org/gin-contrib/pprof.svg)](https://travis-ci.org/gin-contrib/pprof)
+[![codecov](https://codecov.io/gh/gin-contrib/pprof/branch/master/graph/badge.svg)](https://codecov.io/gh/gin-contrib/pprof)
+[![Go Report Card](https://goreportcard.com/badge/github.com/gin-contrib/pprof)](https://goreportcard.com/report/github.com/gin-contrib/pprof)
+[![GoDoc](https://godoc.org/github.com/gin-contrib/pprof?status.svg)](https://godoc.org/github.com/gin-contrib/pprof)
+[![Join the chat at https://gitter.im/gin-gonic/gin](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/gin-gonic/gin)
+
+gin pprof middleware
+
+> Package pprof serves via its HTTP server runtime profiling data in the format expected by the pprof visualization tool.
+
+## Usage
+
+### Start using it
+
+Download and install it:
+
+```bash
+$ go get gopkg.in/gin-contrib/pprof.v1
+```
+
+Import it in your code:
+
+```go
+import "gopkg.in/gin-contrib/pprof.v1"
+```
+
+### Example:
+
+```go
+package main
+
+import (
+	"github.com/gin-contrib/pprof"
+	"github.com/gin-gonic/gin"
+)
+
+func main() {
+  router := gin.Default()
+  pprof.Register(router, nil)
+  router.Run(":8080")
+}
+```
+
+### change default path prefix:
+
+```go
+func main() {
+	router := gin.Default()
+	pprof.Register(router, &pprof.Options{
+		// default is "debug/pprof"
+		RoutePrefix: "debug/pprof",
+	})
+	router.Run(":8080")
+}
+```
+
+### Use the pprof tool
+
+Then use the pprof tool to look at the heap profile:
+
+```bash
+go tool pprof http://localhost:8080/debug/pprof/heap
+```
+
+Or to look at a 30-second CPU profile:
+
+```bash
+go tool pprof http://localhost:8080/debug/pprof/profile
+```
+
+Or to look at the goroutine blocking profile, after calling runtime.SetBlockProfileRate in your program:
+
+```bash
+go tool pprof http://localhost:8080/debug/pprof/block
+```
+
+Or to collect a 5-second execution trace:
+
+```bash
+wget http://localhost:8080/debug/pprof/trace?seconds=5
+```

vendor/github.com/gin-contrib/pprof/pprof.go

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+package pprof
+
+import (
+	"net/http"
+	"net/http/pprof"
+
+	"github.com/gin-gonic/gin"
+)
+
+// Options provides potential route registration configuration options
+type Options struct {
+	// RoutePrefix is an optional path prefix. If left unspecified, `/debug/pprof`
+	// is used as the default path prefix.
+	RoutePrefix string
+}
+
+// Register the standard HandlerFuncs from the net/http/pprof package with
+// the provided gin.Engine. opts is a optional. If a `nil` value is passed,
+// the default path prefix is used.
+func Register(r *gin.Engine, opts *Options) {
+	prefix := routePrefix(opts)
+	r.GET(prefix+"/block", pprofHandler(pprof.Index))
+	r.GET(prefix+"/heap", pprofHandler(pprof.Index))
+	r.GET(prefix+"/profile", pprofHandler(pprof.Profile))
+	r.POST(prefix+"/symbol", pprofHandler(pprof.Symbol))
+	r.GET(prefix+"/symbol", pprofHandler(pprof.Symbol))
+	r.GET(prefix+"/trace", pprofHandler(pprof.Trace))
+}
+
+func pprofHandler(h http.HandlerFunc) gin.HandlerFunc {
+	handler := http.HandlerFunc(h)
+	return func(c *gin.Context) {
+		handler.ServeHTTP(c.Writer, c.Request)
+	}
+}
+
+func routePrefix(opts *Options) string {
+	if opts == nil {
+		return "/debug/pprof"
+	}
+	return opts.RoutePrefix
+}