{"action":"created","comment":{"url":"https://api.github.com/repos/kubernetes/kubernetes/pulls/comments/44177757","id":44177757,"diff_hunk":"@@ -0,0 +1,72 @@\n+/*\n+Copyright 2015 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+package util\n+\n+import (\n+\t\"sync\"\n+\t\"time\"\n+\n+\t\"k8s.io/kubernetes/pkg/util\"\n+\n+\t\"github.com/golang/glog\"\n+)\n+\n+type deadlockDetector struct {\n+\tname  string\n+\tlock  sync.RWMutex\n+\tclock util.Clock\n+}\n+\n+// DeadlockWatchdog creates a watchdog on mutex.  If the mutex can not be acquired\n+// within 'maxLockPeriod', the program exits via glog.Exitf() or os.Exit() if that fails\n+// 'name' is a semantic name that is useful for the user and is printed on exit.\n+func DeadlockWatchdog(lock sync.RWMutex, name string, maxLockPeriod time.Duration) {","path":"pkg/util/deadlock-detector.go","position":null,"original_position":37,"commit_id":"c511db911361ea28fe80a7d96a1064b1ab17209b","original_commit_id":"4218fae459aeb53a644ce1cda19302bcffd5b728","user":{"login":"brendandburns","id":5751682,"avatar_url":"https://avatars.githubusercontent.com/u/5751682?v=3","gravatar_id":"","url":"https://api.github.com/users/brendandburns","html_url":"https://github.com/brendandburns","followers_url":"https://api.github.com/users/brendandburns/followers","following_url":"https://api.github.com/users/brendandburns/following{/other_user}","gists_url":"https://api.github.com/users/brendandburns/gists{/gist_id}","starred_url":"https://api.github.com/users/brendandburns/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/brendandburns/subscriptions","organizations_url":"https://api.github.com/users/brendandburns/orgs","repos_url":"https://api.github.com/users/brendandburns/repos","events_url":"https://api.github.com/users/brendandburns/events{/privacy}","received_events_url":"https://api.github.com/users/brendandburns/received_events","type":"User","site_admin":false},"body":"ugh, fixed the pointer.  I wanted to support RWMutex directly so that I used reader lock for lower impact, added some wrappers to make this work...","created_at":"2015-11-06T19:32:00Z","updated_at":"2015-11-06T19:32:00Z","html_url":"https://github.com/kubernetes/kubernetes/pull/16924#discussion_r44177757","pull_request_url":"https://api.github.com/repos/kubernetes/kubernetes/pulls/16924","_links":{"self":{"href":"https://api.github.com/repos/kubernetes/kubernetes/pulls/comments/44177757"},"html":{"href":"https://github.com/kubernetes/kubernetes/pull/16924#discussion_r44177757"},"pull_request":{"href":"https://api.github.com/repos/kubernetes/kubernetes/pulls/16924"}}},"pull_request":{"url":"https://api.github.com/repos/kubernetes/kubernetes/pulls/16924","id":49983925,"html_url":"https://github.com/kubernetes/kubernetes/pull/16924","diff_url":"https://github.com/kubernetes/kubernetes/pull/16924.diff","patch_url":"https://github.com/kubernetes/kubernetes/pull/16924.patch","issue_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/16924","number":16924,"state":"open","locked":false,"title":"Add a deadlock 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