lock doc

/// ///Summary: When using Documentmanager.open (FilePath), lock document Lock is required if it is forwrite. /// [Commandmethod ("T38")]//Test Document Lock Public voidT38 () {//Document doc = Application.DocumentManager.MdiActiveDocument; //if it is mdiactivedocument, you do not need to

1. Spin Lock A spin lock enables a thread to perform an empty loop without being suspended while not acquiring a lock, (that is, the so-called spin, which is the execution of the empty loop itself), and if the thread can acquire a lock after several empty loops, continue executing. If the thread is still unable to get

This array, how to package the doc file download, to rename the doc file. $qrList = Array ( Array ' Data ' =>array ( ' ID ' =>1, ' Source ' = ' qrcodesale1kkk ',' title ' = ' Large amount of ridge ',' File ' = '/file/20150212/201576.doc ' ), ), Array ' Data ' =>array ( ' ID ' =>2, ' Source

Detailed description of jsp export doc file instances by format, detailed description of jsp export doc Detailed description of jsp export doc file instances by format Principle:The doc file can be saved as an xml file. The xml file uses a string to represent the representation of the

Package Zuoye;Import Java.io.FileInputStream;Import Java.io.FileOutputStream;public class Biniodemo {PublicStaticvoidMainString[] args) {FileInputStreamIntry {in = new fileinputstream ( "d:/ Zuoye/1.doc "); byte[]b=new byte[1024"; int i=-1; FileOutputStream out=new fileoutputstream (" d:/zuoye/001. Doc "); while ((I=in.read (b)) >0) { Span class= "Hljs-keyword" >out.write (b, 0, i);} out.close (); in.close

9.4, _ del _, _ doc _, _ dict _, _ module _, _ getitem _, _ setitem _, and __,__ delitem _, _ str _, _ call __, __del ____ doc ___ Del __: Called destructor When an object is deleted, the python interpreter calls the _ del _ () method by default. Import gcclass Dog (object): def _ init _ (self, name): self. name = name def _ del _ (self): print ("deleted successfully") def wang (self): print ("wang "

Every time a new file is opened in ultraedit, the following message is displayed: "The file may not be in the DOC format. Do you want to convert the file to the doc format ?" Every time, I feel very troublesome. It is also annoying. The following prompt can be removed from the settings: Go to advanced> Configuration> File Processing> DCO/Unix/MAC processing> UNIX/MAC file detection/Conversion Select "Disabl

Tags: consistency set get proof hibernate open Prim commit extLab Environment: mysql5.6 Storage Engine: InnoDB When we operate the database, there may be inconsistencies in data due to concurrency problems (data Conflicts)Optimistic lockOptimistic lock is not the database comes with, we need to implement it ourselves. Optimistic locking refers to the operation of the database (update operation), the idea is optimistic, that this operation will not le

Tags: processing let sha same share data exce where pessimistic lockInconsistencies in data that may occur due to concurrency problems when manipulating databases (data conflicts) ----Optimistic lock Optimistic lock is not the database comes with, we need to implement it ourselves. Optimistic locking refers to the operation of the database (update operation), the idea is optimistic, that this operation will

Before doing a test, repeatedly executed several times, found the result is the same:1. Single-threaded synchronized is the most efficient (at the time it felt its efficiency should be the worst);2. Atomicinteger efficiency is the most unstable, different concurrency performance is not the same: short time low concurrency, efficiency is higher than synchronized, sometimes even higher than longadder, but high concurrency, performance is not as good as synchronized, The performance is very unstabl

There are two ways to classify locks.(1) From the point of view of database systemLocks are grouped into the following three categories:• Exclusive Lock (Exclusive lock)A resource with exclusive lock locks is allowed only by programs that are locked, and no other action is accepted. When you perform a data Update command, which is the INSERT, UPDATE, or delete co

MySQL Lab 1 .? MySQL concurrency and Isolation Control Mechanism Meta-data metadata lock: Implemented in the tablecache cache, provides isolation operations for DDL (DataDefinitionLanguage. A special meta-data metadata type called NameLock. (SQL layer) table-level data lock (SQL layer) storage engine-specific mechanism ro MySQL Lab 1 .? MySQL concurrency and Isolation Control Mechanism Meta-data metadata

: a mechanism that coordinates the concurrent access of multiple processes or threads to a resource. Lock conflict is an important factor that affects the performance of concurrent access to a database.The storage engine supports different locking mechanisms Row lock Table lock Page lock