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results of the operation are as shown and conform to the expected results.1.6 Using the ManualResetEventSlim classManualResetEventSlimThe use and ManualResetEvent class are basically consistent, just ManualResetEventSlim work in mixed mode , and it AutoResetEventSlim differs from the need to manually reset the event, that is, the call to reset the Reset() event to false .The demo code is as follows, and the image will be likened to the ManualResetEventSlim gate, when the event is true opened, t

different, but the share gets and gives the signal API function; 2. Binary signal Volume Binary semaphores can be used for both mutex and synchronization functions. Binary semaphores and mutexes are very similar, but there are subtle differences: The mutex contains a precedence inheritance mechanism, and the binary semaphore does not have this mechanism. This allows the binary semaphore to be better used for synchronization (tasks or between tasks and interrupts), and the mutex is better used t

ipconfig command to obtain the network IP address of the local connection, as above: 172.16.2.41;B. Set the IP address of the virtual machine to the IP address of the local connection in the same network segment, such as 172.16.2.241;C. Restart the network configuration using the service network restart command;D. Use the ping command to check if the network is unblocked, such as: Ping 172.16.2.41.2. Host-only Mode:The NIC used in Host-only mode is:

#显示所有网卡2 ifconfig em1# Display the specified NIC Em13 Route-n #查看路由4 Cat/etc/sysconfig/network-scripts/ifcfg-em1 #查看DNSSix View network status1 ifconfing2 Route-n3 netstatSeven Network checks:1 Ping www.baidu.com #icmp协议基础, see not through2 traceroute www.baidu.com #基础检查, see if it hurts3 Telnet 10.0.0.24 80 Check that the server Web is open, the service is not open, and the fire wall is blockedEight Grab Bag toolTcpdumpTcpdump-n Icmp-i em1Nine DNS domain name resolution query1 Dig www.baidu.co

the thread is blocked, the function is automatically called lck.unlock() 释放锁，使得其他被阻塞在锁竞争上的线程得以继续执行。 in addition, once the thread is notified (notified, which is usually called by some other notify_* to wake up the current threads), the wait () function is also automatically called Lck.lock (), making the state of lck and the wait function is the same as when it is invoked.In the second case (that is, predicate is set), calling Wait () only when the pred condition is false will block the current

Signal--sigpending function The sigpending function returns a signal that is blocked and is pending for the calling process. The signal set is returned by the set parameter. #include int sigpending (sigset_t *set);Successful return 0, error returned-1 The following code shows the characteristics of all the signals we have described. #include static void Sig_quit (int); IntMain (void){sigset_t Newmask, Oldmask, Pendmask; if (Signal (sigquit, sig_quit) = = Sig_err) {printf ("Can ' t catch

is very effective for processing multi-byte characters. Mysql_real_escape_string determines the character set, and mysql_escape_string does not need to be considered. For other string processing functions, see: Regular string replacement in PHP and comparison of split functions.The following is a summary of Special Character Processing in common forms:Test string:1 $ dbstr = 'd: \ test2 3 \'! = \ '1 \ 'OR \ '1 \'4 5 678 Test code:01 header ("Content-Type: text/html; charset = UTF-8 ");02

count, and when other methods are called in the critical section, the count is added to 1, and the calling method exits with a lock minus 1.Pay attention to the abnormal handling of the critical section and do not jump out of the critical area due to anomalies.8. The conditional object is used for the thread to wait for a condition to be satisfied when performing the action. A simple lock does not satisfy this scenario.A lock can be associated with multiple condition variable condition. Bankloc

esetvaluewithoverwrite:pxtcb->ulnotifiedvalue = Ulvalue; Break Case Esetvaluewithoutoverwrite:if (UCoriginalnotifystate! = tasknotification_received) {Pxtcb->ulnotifiedvalue = Ulvalu E } else {/* The last notification value has not been taken away, this notification value is discarded */Xreturn = Pdfail; } break; Case Enoaction:/* Do not need to update the notification value */break; } tracetask_notify (); /* If the notified tas

the sound in the background. This is the default value, and the above code can be written directly as "Myaudio.play (@ "c:\test.wav"); ". Backgroundloop, looping through the background until the stop () method is called. Waittocomplete, play the sound until the sound playback is complete before continuing to execute other code. Basic Application of NetworkSometimes you need to determine whether the network is unblocked in the software, o

The admin5 webmaster was unblocked by Baidu and received enthusiastic attention from the majority of webmasters. Qq and the major webmaster communities are discussing why admin5 can be unblocked. All kinds of guesses and inquiries are found. Many people directly asked me how much I spent. Who is it. I asked him to unban his account for 10 thousand. It was speechless. At the request of many people, I sorted

quotation marks, HTML tags, links, unblocked HTML tags, database syntax error tolerance, JS execution judgment, PHP execution judgment, multiple consecutive carriage return line breaks and spaces. Some of these concepts have an inclusive relationship, the same below. The source code output is as follows (the JS script will be executed ): II. data processing for form submission1. force add a backslashBecause some hosts enable the magic refere

point should indicate the same mutex when the wait operation is invoked, when the condition variable is bound to the mutex, or the behavior of the program is undefined. The condition variable must be used in conjunction with the mutex, on the grounds that the program needs to determine whether a condition (condition or predict) is tenable, and that the condition can be arbitrarily complex. A thread leaving a critical section is unblocked (unblock) wi

disassociation (de-connect) or Deauthentication (de-authentication) frames as a response. These frames contain a Reason code (reason code) bit length of 16bit, which indicates that the other party is doing the wrong thing, Code Meaning 0 Reserved, not used (Reserved; Unused 1 Unspecified (Unspecified) 2 Previous identity authentication is invalid (Prior authentication is not valid) 3 The workstation h

the wrong exit. ReaderWriterLockSlim class It is characterized by: When one thread writes to the data, all other threads that request access are blocked When a thread reads from the data, other threads that request read allow the execution to continue, but the thread that requested the write is still blocked. After the thread that writes to the thread ends, either the blocking of a write thread is unblocked