{"action":"created","comment":{"url":"https://api.github.com/repos/kubernetes/kubernetes/pulls/comments/61948866","id":61948866,"diff_hunk":"@@ -0,0 +1,76 @@\n+/*\n+Copyright 2016 The Kubernetes Authors All rights reserved.\n+\n+Licensed under the Apache License, Version 2.0 (the \"License\");\n+you may not use this file except in compliance with the License.\n+You may obtain a copy of the License at\n+\n+    http://www.apache.org/licenses/LICENSE-2.0\n+\n+Unless required by applicable law or agreed to in writing, software\n+distributed under the License is distributed on an \"AS IS\" BASIS,\n+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n+See the License for the specific language governing permissions and\n+limitations under the License.\n+*/\n+\n+/*\n+Package goroutinemap implements a data structure for managing go routines\n+by name. It prevents the creation of new go routines if an existing go routine\n+with the same name exists.\n+*/\n+package goroutinemap\n+\n+import (\n+\t\"fmt\"\n+\t\"sync\"\n+\n+\t\"k8s.io/kubernetes/pkg/util/runtime\"\n+)\n+\n+// GoRoutineMap defines the supported set of operations.\n+type GoRoutineMap interface {\n+\t// NewGoRoutine adds operationName to the list of running operations and\n+\t// spawns a new go routine to execute the operation. If an operation with\n+\t// the same name already exists, an error is returned. Once the operation\n+\t// is complete, the go routine is terminated and the operationName is\n+\t// removed from the list of executing operations allowing a new operation\n+\t// to be started with the same name without error.\n+\tNewGoRoutine(operationName string, operation func() error) error\n+}\n+\n+// NewGoRoutineMap returns a new instance of GoRoutineMap.\n+func NewGoRoutineMap() GoRoutineMap {\n+\treturn &goRoutineMap{\n+\t\toperations: make(map[string]bool),\n+\t}\n+}\n+\n+type goRoutineMap struct {\n+\toperations map[string]bool","path":"pkg/util/goroutinemap/goroutinemap.go","position":50,"original_position":50,"commit_id":"53bb527e352f385a2b5e4e95a4d09626350c70be","original_commit_id":"53bb527e352f385a2b5e4e95a4d09626350c70be","user":{"login":"saad-ali","id":10052848,"avatar_url":"https://avatars.githubusercontent.com/u/10052848?v=3","gravatar_id":"","url":"https://api.github.com/users/saad-ali","html_url":"https://github.com/saad-ali","followers_url":"https://api.github.com/users/saad-ali/followers","following_url":"https://api.github.com/users/saad-ali/following{/other_user}","gists_url":"https://api.github.com/users/saad-ali/gists{/gist_id}","starred_url":"https://api.github.com/users/saad-ali/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/saad-ali/subscriptions","organizations_url":"https://api.github.com/users/saad-ali/orgs","repos_url":"https://api.github.com/users/saad-ali/repos","events_url":"https://api.github.com/users/saad-ali/events{/privacy}","received_events_url":"https://api.github.com/users/saad-ali/received_events","type":"User","site_admin":false},"body":"> I prefer this because it allows you to do if mySet[myKey] {}\r\n \r\n+1","created_at":"2016-05-03T20:21:33Z","updated_at":"2016-05-03T20:21:33Z","html_url":"https://github.com/kubernetes/kubernetes/pull/24838#discussion_r61948866","pull_request_url":"https://api.github.com/repos/kubernetes/kubernetes/pulls/24838","_links":{"self":{"href":"https://api.github.com/repos/kubernetes/kubernetes/pulls/comments/61948866"},"html":{"href":"https://github.com/kubernetes/kubernetes/pull/24838#discussion_r61948866"},"pull_request":{"href":"https://api.github.com/repos/kubernetes/kubernetes/pulls/24838"}}},"pull_request":{"url":"https://api.github.com/repos/kubernetes/kubernetes/pulls/24838","id":67982752,"html_url":"https://github.com/kubernetes/kubernetes/pull/24838","diff_url":"https://github.com/kubernetes/kubernetes/pull/24838.diff","patch_url":"https://github.com/kubernetes/kubernetes/pull/24838.patch","issue_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/24838","number":24838,"state":"open","locked":false,"title":"Add data structure for managing go routines by name","user":{"login":"saad-ali","id":10052848,"avatar_url":"https://avatars.githubusercontent.com/u/10052848?v=3","gravatar_id":"","url":"https://api.github.com/users/saad-ali","html_url":"https://github.com/saad-ali","followers_url":"https://api.github.com/users/saad-ali/followers","following_url":"https://api.github.com/users/saad-ali/following{/other_user}","gists_url":"https://api.github.com/users/saad-ali/gists{/gist_id}","starred_url":"https://api.github.com/users/saad-ali/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/saad-ali/subscriptions","organizations_url":"https://api.github.com/users/saad-ali/orgs","repos_url":"https://api.github.com/users/saad-ali/repos","events_url":"https://api.github.com/users/saad-ali/events{/privacy}","received_events_url":"https://api.github.com/users/saad-ali/received_events","type":"User","site_admin":false},"body":"This PR introduces a data structure for managing go routines by name. It prevents the creation of new go routines if an existing go routine with the same name exists. This will enable parallelization of the designs in https://github.com/kubernetes/kubernetes/issues/20262 and https://github.com/kubernetes/kubernetes/issues/21931 with sufficient protection to prevent starting multiple operations on the same volume.","created_at":"2016-04-27T01:15:17Z","updated_at":"2016-05-03T20:21:33Z","closed_at":null,"merged_at":null,"merge_commit_sha":"005200d58325116dfd8232d0a34bd0573c79ad1b","assignee":{"login":"swagiaal","id":770962,"avatar_url":"https://avatars.githubusercontent.com/u/770962?v=3","gravatar_id":"","url":"https://api.github.com/users/swagiaal","html_url":"https://github.com/swagiaal","followers_url":"https://api.github.com/users/swagiaal/followers","following_url":"https://api.github.com/users/swagiaal/following{/other_user}","gists_url":"https://api.github.com/users/swagiaal/gists{/gist_id}","starred_url":"https://api.github.com/users/swagiaal/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/swagiaal/subscriptions","organizations_url":"https://api.github.com/users/swagiaal/orgs","repos_url":"https://api.github.com/users/swagiaal/repos","events_url":"https://api.github.com/users/swagiaal/events{/privacy}","received_events_url":"https://api.github.com/users/swagiaal/received_events","type":"User","site_admin":false},"milestone":null,"commits_url":"https://api.github.com/repos/kubernetes/kubernetes/pulls/24838/commits","review_comments_url":"https://api.github.com/repos/kubernetes/kubernetes/pulls/24838/comments","review_comment_url":"https://api.github.com/repos/kubernetes/kubernetes/pulls/comments{/number}","comments_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/24838/comments","statuses_url":"https://api.github.com/repos/kubernetes/kubernetes/statuses/53bb527e352f385a2b5e4e95a4d09626350c70be","head":{"label":"saad-ali:attachControllerOpMap","ref":"attachControllerOpMap","sha":"53bb527e352f385a2b5e4e95a4d09626350c70be","user":{"login":"saad-ali","id":10052848,"avatar_url":"https://avatars.githubusercontent.com/u/10052848?v=3","gravatar_id":"","url":"https://api.github.com/users/saad-ali","html_url":"https://github.com/saad-ali","followers_url":"https://api.github.com/users/saad-ali/followers","following_url":"https://api.github.com/users/saad-ali/following{/other_user}","gists_url":"https://api.github.com/users/saad-ali/gists{/gist_id}","starred_url":"https://api.github.com/users/saad-ali/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/saad-ali/subscriptions","organizations_url":"https://api.github.com/users/saad-ali/orgs","repos_url":"https://api.github.com/users/saad-ali/repos","events_url":"https://api.github.com/users/saad-ali/events{/privacy}","received_events_url":"https://api.github.com/users/saad-ali/received_events","type":"User","site_admin":false},"repo":{"id":27614790,"name":"kubernetes","full_name":"saad-ali/kubernetes","owner":{"login":"saad-ali","id":10052848,"avatar_url":"https://avatars.githubusercontent.com/u/10052848?v=3","gravatar_id":"","url":"https://api.github.com/users/saad-ali","html_url":"https://github.com/saad-ali","followers_url":"https://api.github.com/users/saad-ali/followers","following_url":"https://api.github.com/users/saad-ali/following{/other_user}","gists_url":"https://api.github.com/users/saad-ali/gists{/gist_id}","starred_url":"https://api.github.com/users/saad-ali/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/saad-ali/subscriptions","organizations_url":"https://api.github.com/users/saad-ali/orgs","repos_url":"https://api.github.com/users/saad-ali/repos","events_url":"https://api.github.com/users/saad-ali/events{/privacy}","received_events_url":"https://api.github.com/users/saad-ali/received_events","type":"User","site_admin":false},"private":false,"html_url":"https://github.com/saad-ali/kubernetes","description":"Container 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