incognito blocker

In the Friday and the weekend, work to sneak in, looking at the Java cocurrent also by the way the Thread.Interrupt and Java 5 after the implementation of the Locksupport. Before introducing, let's throw a few questions. The relationship between Thread.Interrupt () method and Interruptedexception anomaly? is the interruptedexception exception triggered by the interrupt trigger? Thread.Interrupt () What state of the thread will interrupt the work? RUNNING or BLOCKING? General thread programming n

. Concreteguardedaction: The specific target action implemented by the application and its associated protection conditions. Predicate: Abstract protection condition -evaluate: The method used to represent the protection condition. Concretepredicate: The specific protection conditions implemented by the application. Blocker: is responsible for suspending and waking the thread that executes the Guardedmethod method and performing the target operati

and all 11.2, the offending SQL statements from involved sessions will be written in the trace. for earlier version or if there is no SQL statements in the trace, apply patch 6343023 or use step 6 to gather system state dump.Here are some common deadlock types:1. TX deadlock in exclusive (x) modetrace shows: Global wait-for-graph (WFG) at DDTs [0.170]: Blocked 0x8aafb0ec 5WQ 2 cvtops X1 TX0x320001. 0x121c97 [99000-0001-00000002] 0 Blocker 0x8aafafec

available until permit = 1 will be blocked) ■LockSupportData Structure 1. setBlocker/getBlocker 1/** 2 * Returns the blocker object supplied to the most recent 3 * invocation of a park method that has not yet unblocked, or null 4 * if not blocked. the value returned is just a momentary 5 * snapshot -- the thread may have since unblocked or blocked on a 6 * different blocker object. 7 * return the

If you do not want to know the web page, you can use the stealth browsing mode provided by Google Chrome. The principle of stealth mode is as follows: In stealth mode, the opened web pages and downloaded files are not recorded in your browsing history and download history. After you close all opened invisible windows, the system will delete all new cookies. Google Chrome will save your changes to bookmarks and general settings in stealth mode. You can also use the keyboard shortcut

Locksupport OverviewBasic thread blocking primitives for creating locks and other synchronization classes. The underlying threading block primitives used to create locks and other synchronization classes. This is the explanation in Java doc, and the following is a framework for a first in, out (first-in-first-out) non-reentrant lock class.The above code simple implementation of the lock function, mainly using the Locksupport Park and Unpark blocking and releasing threads, Atomicboolean CAS opera

Recently, when I was searching for Google, I found that there were some traces of my best friend from my own. Rejoice, but also have uneasiness. To find out what Google has done, I did the experiment. First of all, I thought of the log out account. As I recently wanted to change my phone, I searched for Windows Phone on Google and then logged out my Google account to do the same search. The search results for two times were exactly the same. It seems that the personalized Google search (customi

--------------------------------------AdministratorBLACKHATDomain AdminsHackedLocal_valsmithRootThe command completed successfully.Enumerate the domain admins C: WINDOWSsystem32> net group "domain admins"/domainNet group "domain admins"/domainThe request will be processed at a domain controller for domain blackhat.com. Group name Domain AdminsComment Designated administrators of the domain Members ---------------------------------------------------Admin_valsmith AdministratorThe command complete

, profile was made up of mostly pure virtual accessors. Normal, Incognito (anonymous) and testing (test) profile.In this world, profile is the center of all activities. Profile is useful for all of its services and is delivered to the outside world. The profile split follows any principle of ordering services in Profileimpl. Another branch is not possible if you want to add your own services or remove unwanted services without modifying the profile in

Grasp the Google browser shortcut keys, can improve the use of certain efficiency.Windows and Linuxtab and window shortcut keys Operation Shortcut keys Open a new window Ctrl + N Open a new window in Incognito mode Ctrl + Shift + N Opens a new tab and jumps to the tab page Ctrl + t Reopen the last closed tab and jump to the tab page Ctrl + Shift + t

Fs= "[" ":]+" with one or more spaces or: delimited [[emailprotected] tmp]# cat hello.txtroot:x:0:0:root: /root:/bin/bash[[emailprotected] tmp]# awk -F [" ":]+ ‘{print $1,$2,$3}‘ hello.txtroot x 0Number of fields NF ":" is a delimiter, the number of separated fields NF is 8 output the line [[emailprotected] tmp]# cat hello.txtroot:x:0:0:root:/root:/bin/bashbin:x:1:1:bin:/bin:/sbin/nologin:888[[emailprotected] tmp]# awk -F ":" ‘NF==8{print $0}‘ hello.t

is your choice).Then you need to create two things: the first part is to create the desired theme image (PNG image) and put them in the image folder (in the next section you will see a list of topics that can be created for the image), and then create a file named "Manifest.json", It takes a theme folder (here is an example file in Manifest.json, a basic text editor to open it, to see the content, remember that all annotations in this file are in the lower case)Then, we pack the themes and test

execution The ex control initializes and executes the script: set to prompt; D, binary, and scripting behavior: set to Enabled; If you use the IE8.0 browser, you will also need to "allow only approved domains to use ActiveX without prompting" option: set to Enabled. 　　 E, download unsigned ActiveX controls: set to prompt; F, Download signed ActiveX controls: set to prompt; G, allow to run ActiveX controls that were not previously used without prompting: set to Disabled; H

,DECODE (request,0, ' NONE ', 1, ' NULL ', 2, ' Row SHARE ', 3, ' Row EXCLUSIVE ', 4, ' SHARE ', 5, ' SHARE ROW EXCLUSIVE ', 6 , ' EXCLUSIVE ', ' HAHA ') lock_request,Ctime,block from V$lock WHERE TYPE in (' TM ', ' TX ') ';OPEN Cur_lock for V_sql;LOOPFETCH Cur_lock into Records_lock;EXIT when Cur_lock%notfound;IF Records_lock. V_request Dbms_output. Put_Line (' Waiting sid: ' | | Records_lock. v_sid| | ' is request a lock, Lock_mode ' | | Records_lock. v_request| | ' and being locked ' | | Reco

') Lock_type,DECODE (request,0, ' NONE ', 1, ' NULL ', 2, ' Row SHARE ', 3, ' Row EXCLUSIVE ', 4, ' SHARE ', 5, ' SHARE ROW EXCLUSIVE ', 6 , ' EXCLUSIVE ', ' HAHA ') lock_request,Ctime,block from V$lock WHERE TYPE in (' TM ', ' TX ') ';OPEN Cur_lock for V_sql;LOOPFETCH Cur_lock into Records_lock;EXIT when Cur_lock%notfound;IF Records_lock. V_request Dbms_output. Put_Line (' Waiting sid: ' | | Records_lock. v_sid| | ' is request a lock, Lock_mode ' | | Records_lock. v_request| | ' and being lock

} 18 19 public static void park (Object blocker) {20 Thread t = Thread. currentThread (); 21 // set the thread t's blocker field 22 setBlocker (t, blocker); 23 // block the thread, so the following setBlocker will not run 24 UNSAFE. park (false, 0L); 25 // The second setBlocker Method 26 setBlocker (t, null) will be executed only when the unpark method is called

, ' SHARE ', 5, ' SHARE ROW EXCLUSIVE ', 6, ' EXCLUSIVE ', ' HAHA ') Lock_type,DECODE (request,0, ' NONE ', 1, ' NULL ', 2, ' Row SHARE ', 3, ' Row EXCLUSIVE ', 4, ' SHARE ', 5, ' SHARE ROW EXCLUSIVE ', 6 , ' EXCLUSIVE ', ' HAHA ') lock_request,Ctime,block from V$lock WHERE TYPE in (' TM ', ' TX ') ';OPEN Cur_lock for V_sql;LOOPFETCH Cur_lock into Records_lock;EXIT when Cur_lock%notfound;IF Records_lock. V_request Dbms_output. Put_Line (' Waiting sid: ' | | Records_lock. v_sid| | ' is request a

operation of threads in the entire concurrency framework is encapsulated in the Locksupport class, with various versions of the Pack method in the Locksupport class, but eventually the Unsafe.park () method is called.public class Locksupport {public static void Unpark (thread thread) {if (thread! = null) UNSAFE.UNPA RK (thread); public static void Park (Object blocker) {Thread t = thread.currentthread (); Setblocker (t,

detected by Hang manager that no longer exists. Hang Manager When diagnosing a database problem, you often encounter problems with the database/process hang. For hang's problem, generally speaking, the following two kinds of reasons are common:1. Deadlock (cycle). For this hang, the problem will persist unless the loop is broken.2. A plug-in (blocker) process has blocked other processes after holding certain resources, and other processes have been

Catalogue [-] What is an interceptor? Asynchronous operation Example Session Injection (Request blocker) Timestamp (Request and response interceptors) Request recovery (Request exception interception) Session Recovery (response to exception blocker) Summarize Interceptors in AngularJS and useful ExamplesThere are dates, I like. $httpAngularJS $http Service all