The latter two components are optional and can be ommitted when choosing "custom install", it is only needed if you want to use the tcltk R package or build package documentation from sources. Contains R 3.3.3 framework, R.app GUI 1.69 in 64-bit for Intel Macs, Tcl/Tk 8.6.0 X11 libraries and Texinfo 5.2. R 3.3.3 binary for Mac OS X 10.9 (Mavericks) and higher, signed package. The latter two components are optional and can be ommitted when choosing "custom install", they are only needed if you want to use the tcltk R package or build package documentation from sources. Contains R 3.6.3 framework, R.app GUI 1.70 in 64-bit for Intel Macs, Tcl/Tk 8.6.6 X11 libraries and Texinfo 5.2. R 3.6.3 binary for OS X 10.11 (El Capitan) and higher, signed package. Please use as the CRAN mirror if you want to install the corresponding package binaries. ![]() NOTE: package binaries for the following releases are no longer present on CRAN. If you wish to compile R packages from sources, you may need to download GNU Fortran 8.2 - see the tools directory. This release uses Xcode 12.4 and GNU Fortran 8.2. Always re-install XQuartz when upgrading your macOS to a new major version. Note: the use of X11 (including tcltk) requires XQuartz to be installed (version 2.7.11 or later) since it is no longer part of macOS. Contains R 4.2.3 framework, R.app GUI 1.79 in 64-bit for Intel Macs, Tcl/Tk 8.6.6 X11 libraries and Texinfo 6.7. R 4.2.3 binary for macOS 10.13 (High Sierra) and higher, signed and notarized package. Universal GNU Fortran compiler for Mac OS X (see R for Mac tools page for details).īinaries for macOS 11 or higher (Big Sur) for arm64-based Macs (aka Apple silicon such as the M1 chip)īinaries for macOS 11 or higher (Big Sur) for Intel-based Macs Read the INSTALL file for further instructions.Īdditional tools necessary for building R for Mac OS X: This file is only needed if you want to join the development of the GUI (see also Mac-GUI repository), it is not intended for regular users. Sources for the R.app GUI 1.80 for macOS. News features and changes in the R.app Mac GUI Any external libraries and tools are expected to live in /opt/R/arm64 (Apple silicon) or /opt/R/x86_64 (Intel). If you wish to compile R packages which contain Fortran code, you may need to download the corresponding GNU Fortran compiler from. This release uses Xcode 14.2/14.3 and GNU Fortran 12.2. Note: the use of X11 (including tcltk) requires XQuartz (version 2.8.5 or later). ![]() If the installation fails, move the downloaded file away from the Downloads folder (e.g., to your home or Desktop) MacOS Ventura users: there is a known bug in Ventura preventing installations from some locations without a prompt. R 4.3.2 binary for macOS 11 ( Big Sur) and higher, signed and notarized packages.Ĭontains R 4.3.2 framework, R.app GUI 1.80, Tcl/Tk 8.6.12 X11 libraries and Texinfo 6.8. ![]() If Apple tools are not avaiable you can check the SHA1 checksum of the downloaded image: Please check the integrity of the downloaded package by checking the signature: Note: Although we take precautions when assembling binaries, please use the normal precautions with downloaded executables. ![]() R and package binaries for R versions older than 4.0.0 are only available from the CRAN archive so users of such versions should adjust the CRAN mirror setting ( ) accordingly. This directory contains binaries for the base distribution and of R and packages to run on macOS.
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![]() There is an entire class of malware (appropriately called password stealers) dedicated to credential theft. In fact, browsers use this state of affairs to compete with each other: to make it easier for users to switch, they often offer to import all saved data from the old browser, including stored passwords.Īny guesses who else is using this feature? That’s right. A farcical situation: the door appears to be securely locked, but the key is under the doormat, and the whole world knows it. Armed with this key, an attacker can decrypt and steal passwords. And although the passwords themselves are encrypted, the encryption key is stored close by and readily accessible. The reason is that all browsers store passwords in a very predictable place, in a folder whose path is no secret to anyone. ![]() This holds true for at least the three most popular browsers: Google Chrome, Mozilla Firefox, and Microsoft Edge, all of which store user passwords in a highly insecure way. The core problem with storing passwords in browsers is that they sacrifice security for usability. But how safe is it? This post explores three reasons you shouldn’t store passwords in your browser, and why you should use a much more secure storage method: a password manager. Keeper lets you securely share individual passwords or files with people you trust and designate individuals who can access your vault in an emergency.Browser-stored passwords save you from having to re-enter them each time, which is a real time-saver. Keeper for Safari helps you protect confidential files, documents and other media in a secure, encrypted vault. Keeper's autofill feature makes signing into websites easier across all your devices without compromising security. Keeper helps you easily generate and store strong passwords everywhere you browse with Safari, on Apple devices or PCs. Keeper is a streamlined, all-in-one platform for managing all your passwords and confidential information. Here are five reasons why your Safari browsing experience is even more secure with Keeper: The KeeperFill browser extension for Safari can be downloaded directly from Apple’s App Store, and it automatically generates strong passwords and lets you autofill address and credit card information. Keeper Security gives you the strongest possible system for managing passwords on Safari, keeping cybercriminals from gaining access to your money, private information and identity. Managing Your Passwords on Safari Using Keeper Strengthen your organization with zero-trust security and policiesĪchieve industry compliance and audit reporting including SOX and FedRAMPĪutomate credential rotation to drastically reduce the risk of credential-based attacks Restrict secure access to authorized users with RBAC and policies Initiate secure remote access with RDP, SSH and other common protocols ![]() Manage and protect SSH keys and digital certificates across your tech stack Privileged Session ManagementSecurely manage applications and services for users, teams and nodes.Protect critical infrastructure, CI/CD pipelines and eliminate secret sprawlĪchieve visibility, control and security across the entire organization Password SharingSecurely share passwords and sensitive information with users and teamsĮnable passwordless authentication for fast, secure access to applications.Seamlessly and quickly strengthen SAML-compliant IdPs, AD and LDAP Protect and manage your organization's passwords, metadata and files There’s an all-star cast that bolsters the movie but the real star is the dialogue. He writes and directs this true story about the uprising at the 1968 Democratic National Convention in Chicago. Just remember, as you think back to your days of acne and locker combinations, what it took to make it through to the other side and into your adulthood. Those looking for more comedy than drama, as well as more than one partner, Paco Caballero’s 2021 Spanish-language film, More the Merrier (Donde caben dos), should surely do the trick. The Trial of the Chicago 7 is Aaron Sorkin on top form. Hey, you can even find a teen sci-fi movie with elements of time-travel in there. (Especially for those romantic comedy fans: With movies like To All the Boys I’ve Loved Before, Dude, Candy Jar and The Kissing Booth, Netflix has swept all corners of the rom-com.) Ron Howard brings a grounded, taut craft to ensemble piece. Whether you want a heart-tugging romantic movie, an awkward cringe comedy, an all-encompassing melodrama or a movie that uses high school as a metaphor for society at large, Netflix has a top film that’ll fit the bill. Year: 1991 Runtime: 2h 17m Director: Ron Howard People who saw this movie at the right age seem to have continued love for it. (Or Awkward) Days With the Best Teen Movies on Netflix. The best teen movies on Netflix do some of these, if not all. Here are 10 great teen-centered movies to stream on Netflix, full of angst, romance. ![]() Or maybe it’s because teenagers have absolutely no filter so the filthiest jokes come out of their mouths. Biggie: I Got a Story to Tell (2021) At this point, anyone with even a casual awareness of hip-hop knows this stuff inside and. Maybe it’s because the first blush of love is always the strongest. Here are the seven best movies coming to Netflix this March. Maybe it’s because emotions during that age are so raw and powerful, they leave an impression, even years later. It's hard to pin down why these movies are so comforting. On the all-time charts, The Secret Life of Pets 2 ranks tenth. And there's nothing more comforting than a swoony, cringey, hilarious teen movie. The animated film has spent 29 total days on the Top 10 charts in 2021, and 71 days total tracing back to 2020. All 42 movies Netflix is releasing in fall 2021. She won Best New Journalist in 2019 at the. ![]() What most of us long for is a big comfort-watch. The movie that inspired her to want a career in film is Lost in Translation. In these times, we're no longer looking for prestige viewing. ![]() This section of the guide will aim to fill in some of those gaps, with how-to guides, tips and tricks, and answers to some of the more frequently asked questions all featured here. There are around 300 music tracks from around 75 artists, ranging from classical music to rock, bossa nova to EDM, and seemingly everything in-between. Its packing over 420 cars, almost 100 tracks and a playing time of well over 50 hours. Music plays a massive role in Gran Turismo 7. Just like its predecessors, the game does a fairly decent job of teaching players how they're supposed to interact with it, though there are a few things that it skips over here and there. The scope of Gran Turismo 7, the latest iteration of the legendary racing game series, is gigantic. Gran Turismo 7 is finally here and players can enjoy over 30 different tracks, with multiple track layouts, including iconic real-world locations. This feeling melts away pretty quickly though, and, in the event that it doesn't, the game's highly customizable difficult settings should help. The 1.26 update is scheduled to roll out tomorrow, November 23, five weeks after the developers launched the Gran Turismo 7 1.25 update. Featuring hundreds of painstakingly detailed real-world cars and a curated history of motoring’s most legendary brands, Gran Turismo 7 is as much a celebration of motorsport culture as it is a cutting-edge driving simulator. The attention to detail really is quite astounding, though it can make the driving experience a little intimidating at first glance. New Gran Turismo 7 Update Will Add 3 New Vehicles. 'Gran Turismo 7 is the culmination of everything veteran studio Polyphony Digital has learned over a quarter of a century of game development. The circuit features several blind corners. ![]() It first appears in Gran Turismo 2, and has returned in every main game since, except for Gran Turismo 5, Gran Turismo Sport and Gran Turismo 7.It is also featured in Gran Turismo 6 (as part of Update 1.16, now features variable time). ![]() It is set in a mountainous area in Sierra Nevada, USA, and is almost four kilometers. Mid-Field Raceway is a medium-length tarmac racetrack. The Gran Turismo series has always prided itself on its realism, and this is once again the case in Gran Turismo 7. The Trial Mountain Circuit is a fictional circuit that has appeared in all mainline versions of Gran Turismo except Gran Turismo Sport, and has also featured in Tourist Trophy and Gran Turismo PSP. It also makes a workplace more attractive. Because added flexibility often increases employees' efficiency, it's beneficial to their employers and the whole company, as well. When combined with remote working, efficiency increases even more simply because people save time by not commuting. Related: 13 Jobs With Flexible Hours (With Salaries and Definitions) How do flex hours benefit employers?įlex time can increase productivity by allowing people to work at times when they can devote their full attention. ![]() Starting your day before or after most other people usually means spending less time in rush hour traffic. There can also be timing benefits, especially if you're working on location. With this added flexibility, you can attend to personal matters without it affecting your professional performance. Developing a healthy work-life balance is not only important to the overall happiness of employees, but it also allows them to focus more intently on their work during work hours. In an age where prospective employees often look online for reviews of employers, knowing that the current or past staff members are happy in their positions is crucial. Related: The Benefits of Working From Home How do flex hours benefit employees?įlexible work schedules benefit employees in several ways, such as boosting morale and increasing people's engagement with their work. Regardless of their hours, remote workers also often benefit from the greater flexibility this work allows them. For example, some remote workers are in different time zones. Because remote workers are not physically in the office, employers often also entrust them with the freedom to work on an unusual schedule. While not everybody who works remotely does so on a flexible schedule, and not all flex workers work remotely, there is a significant overlap between the two. Successfully implementing job sharing requires carefully communicating team members' duties and responsibilities ahead of time so everybody understands the expectations. These types of jobs are attractive to people who already have busy schedules, and they may help employers save on overhead costs like benefits. Job sharing is when two part-time staff work half hours so that, together, their hours total that of one full-time staff member. Related: Your Guide to How Overtime Is Calculated (With Examples) Job sharing This might mean leaving early on some days or even taking entire days off until your hours balance out. This essentially means that you can redeem those extra hours worked in the busy season during down periods. Instead of being paid overtime for those extra hours, your company could compensate you with comp time. If you work in a sector with a busy season, you might work significantly more than the standard 40 hours per week. Comp timeĬompensation time, or comp time, is a different way of rewarding overtime hours. If your workplace has staff working on weekends, then some team members can work Monday to Thursday, while others work Wednesday to Sunday. Other people might benefit from long stretches of work and rest, such as working 10 days straight to have four days off. A team member could alternate between five- and four-day work weeks, for example. While some people enjoy working non-standard hours every day, others prefer an environment where they don't work the same five days every week. Some other ways to create a flexible schedule for staff include: A flexible workweek Any type of work schedule in which not every person in the office works the same hours over the same five-day work week is a type of flexible schedule. There are multiple ways you can practice a flexible schedule. Pros and Cons of Flex Days (With Definition and Examples) What Is Flexibility at Work? (With Examples and Benefits) This way, they can avoid sending an urgent email to somebody whose shift has already ended. Office managers can benefit from implementing a system that makes it easy for all staff to see who is working at a given time. ![]() It can also complicate communication and make tracking hours more challenging for management. This makes work much more convenient and often enjoyable for both people, which typically involves them working more efficiently. Flex time is about giving different staff members the freedom to work their schedules. A nine-to-five schedule has been the dominant workday for a long time, but some people prefer to work at other hours to accommodate family responsibilities or other needs. View more jobs on Indeed View more What are flex hours?įlexible hours, or flex hours, are an increasingly popular type of work schedule that allows different staff to work at times that are convenient for them. ![]() Everyone who is participating now is really getting in on the ground floor."īy using the blockchain, Richardson says, Dapper overcomes a big challenge with digital assets, which is the ease of copying them infinite times with almost no friction. "If you think about what the rookie cards today will be worth in the future, especially the ones from this point of the product. "We think it could be a 100-year product," said Tedman from Dapper Labs. And just imagine what a rare Michael Jordan rookie highlight NFT would sell for in 30 years. The bet for traders is that in 2051, a LeBron James NFT could be worth what a 1952 Topps Mickey Mantle card is worth today - one of those rare cards recently sold for $5.2 million. "So if enough people wanted that same Zion Williamson highlight, that NFT, and bidding on it they got up to $100,000, that's supply and demand. "Leave it to Mark Cuban to frame it in a good, sensible, easy-to-understand way," said Richardson, also SVP of strategy at Mercury Intermedia. "And the value is still set by the same laws of supply and demand," he wrote in January. One is currently listed for over $240,000.ĭallas Mavericks owner Mark Cuban has compared Top Shot to the old-school model of trading cards, where consumers can have fun trading and collecting scarce items – only with no risk of damage or theft. Some NFTs feature highlights in different angles and digital artwork. The NBA licenses the reels to Dapper Laps, which digitizes the footage, making a limited amount to create scarcity. The NBA did not make an official avaiable to comment for this story, but Richardson, who was once head of publishing at the National Football League, says the league can solicit 10% to 15% of sales from a company leveraging their intellectual property. Top Shots emerged from a licensing agreement the NBA and its players' union made with Dapper Labs in 2019. Personal Loans for 670 Credit Score or Lower Personal Loans for 580 Credit Score or Lower Best Debt Consolidation Loans for Bad Credit ![]() Tracking a parcel with Old Dominion Freight Line is a straightforward process. ODFL’s complete LTL coverage allows them to efficiently transport freight of various sizes while maintaining a high standard of service and timely deliveries. This broad reach is a significant benefit for businesses with diverse customer bases or suppliers scattered throughout the nation. ODFL boasts a comprehensive network of service centers and distribution points across the country, ensuring that shipments can reach even the most remote locations. One of the key advantages of partnering with Old Dominion Freight Line is its extensive coverage of the continental United States. Complete LTL Coverage of the Continental U.S ODFL’s dedication to efficiency and safety has earned them numerous industry awards and recognition, solidifying their position as a leader in the freight transportation sector. They specialize in Less Than Truckload (LTL) shipping, catering to the needs of businesses of all sizes. With a strong focus on customer service and a commitment to excellence, ODFL has built a loyal customer base and a reliable network of services. Old Dominion Freight Line, founded in 1934, has grown into one of the most reputable freight transportation companies in the United States. With ODFL tracking capabilities, customers can experience peace of mind and a higher level of confidence in their freight’s safe and timely delivery. This transparency ensures that businesses and individuals can stay informed throughout the shipping process, enabling them to plan their operations efficiently and address any concerns promptly. The tracking system then provides up-to-date information on the parcel’s current location, transit history, and estimated delivery date. To avail of this feature, customers can visit the ODFL tracking website or utilize their mobile app and enter the unique tracking number provided by the sender. ![]() Old Dominion Freight Line offers a robust tracking system that empowers customers to monitor their shipments in exact time. In this article, we will explore ODFL’s tracking capabilities and shed light on their services, coverage, and delivery options, providing valuable insights into this renowned freight transportation provider. With a commitment to excellence and customer satisfaction, ODFL offers a seamless tracking system that allows customers to monitor their parcels’ movement and delivery status. One company that has been at the forefront of providing reliable and efficient freight services is Old Dominion Freight Line (ODFL). If you need any help, Please Contact Official Old Dominion Freight Line Shipment | ODFL Customer Support.In the world of freight transportation and logistics, staying connected with your shipments is essential for businesses and individuals alike. Revisit this page for future real time updates about your Old Dominion Freight Line Shipment | ODFL. You can track multiple Old Dominion Freight Line Shipment | ODFL by separating the tracking numbers by a comma (Up to 25 shipments).ĥ. It supports both domestic and international Old Dominion Freight Line Shipment | ODFL services as well.Ĥ. After Clicked track button, You will be redirected to Old Dominion Freight Line Shipment | ODFL tracking page where You can check the current status and location of the shipment.ģ. You can find Old Dominion Freight Line Shipment | ODFL tracking number in the receipt given after booked courier.Ģ. The simplest way is to enter the Old Dominion Freight Line Shipment | ODFL tracking number in the form located above and click on the Track button. Please Follow below steps to track your shipmentġ. Hotline Phone number: 1-80 Contact E-mail ID: How to Check your Old Dominion Freight Line Shipment | ODFL Delivery Status online Old Dominion Freight Line inc Customer Service Details:. ![]() The things you'll do as Cliff aren't much better. Xian Mei, one of the playable characters from the first Dead Island, appears occasionally as one of your mission guides. He's got the soul of Dapper Laughs, the face of X Factor's Rylan Clark and is dressed as Tidus from Final Fantasy X. Cliff isn't just a boisterous bro stuck in a bad place, he's a weird preening idiot whose unpleasant personality is magnified by the game's ugly cel-shaded aesthetic. Escape Dead Island even cribs Far Cry's hallucinatory flourishes, with multiple surreal scenes, on-the-nose dream sequences and reality-bending edits to portray Cliff's fragile mental state. Cliff is a rich white kid who wants to prove his worth to his media tycoon father by dragging two friends to the supposedly deserted island of Narapela in search of The Truth.Ĭliff's arc is fairly obviously inspired by Far Cry 3's Jason Brody, another tired rehash of the old Heart of Darkness motif, as the privileged white westerner descends into the jungle and is immediately forged into a hardened warrior. You're then placed in control of Cliff Calo, another example of gaming's bizarre obsession with casting obnoxious jerks as the hero character. This game is a big step down for the studio.įollowing a brief prelude, which sets up the tiresome corporate conspiracy plotline and threatens to make Dead Island's slim backstory as garbled and idiotic as Resident Evil, events fast forward to six months after the events of the original game, as the whole world wonders what happened in this now-quarantined archipelago. ![]() Developer Fatshark is best known for the wonderfully daft multiplayer romp War of the Vikings. Beyond the concept of zombies on a tropical island, a tangential cameo and the occasional pile of suitcases, it could easily be related to one of the dozens of other cheap zombie games that have shambled into view over the last few years. It's actually hard to work out why this game even exists, since its relationship to the core Dead Island series is tenuous at best. That franchise will decay into slime all too quickly if clunkers like Escape Dead Island are what publisher Deep Silver has in mind, however. Both games outstayed their welcome in the long run, but offered enough mid-tier laughs to justify the start of a new franchise. Neither game was what you could call polished, but developer Techland compensated - sometimes overcompensated - by filling the cracks with gallons of loot, outlandish weapon crafting and knockabout four-player co-op. The original Dead Island and its hurried semi-sequel Riptide got a lot of mileage out of this loophole. And they're always falling to bits, so it doesn't really matter if textures and models are crude. They're famously dim-witted, so bargain basement AI and wonky pathfinding is easily masked inside the fiction. In order to prevail in a Nunc Pro Tunc you must explain reasons why you did not file the summary appeal within the 30 day deadline. This now becomes a two-step process – first you have to convince the judge to reopen the case and permit you to file the appeal and then you would either have to convince the District Attorney to reduce the charges or go to trial to fight the case. In a Nunc Pro Tunc motion, you are requesting that the court permit you to file a late summary appeal. ![]() If more than 30 days have elapsed from the date you were convicted, you will need to file a special motion in the county court called a Nunc Pro Tunc motion. If you fail to file the Summary Appeal within the 30 day deadline, the case can be dismissed if the District Attorney make a motion for dismissal before the County judge. The date of conviction is either the date your guilty plea was received by the court, or the date that you appeared in court for your traffic hearing and were found guilty by the District Judge. ![]() The standard for proof at a traffic hearing is the same as in a criminal case – beyond a reasonable doubt which is a very high standard of proof.Īs you only have 30 days from the date of conviction, you should speak with an experienced traffic defense attorney to discuss your options. ![]() The District Attorney will represent the state and present the evidence against you which can consist of witness testimony, police office testimony, video and or photographs from a Motor Vehicle Recorder aka a dashcam. If you decide to go to trial without an attorney to represent you, you will be required to defend yourself and act as your own attorney before a Common Pleas Court Judge. An experienced attorney would be invaluable to assist you, especially if you wish to go to trial to fight the ticket. If you appeal the conviction, a County Common Pleas Court judge can order house arrest or work release on your case.Īt the Summary Appeal trial, you can go to trial to fight the ticket or sometimes, the county prosecutor may offer a lesser offense with reduced or even zero points. It is recommended that you always file a Summary Appeal in this situation, as most county District Justices do not have the power to order that the prison place you on house arrest or work release. If you were convicted in traffic court of Driving on a DUI Suspension under Section 1543b of the Vehicle Code, the District Justice was required to sentence you to a period of incarceration of at least 60 days in the county prison. If the citation that you were convicted of in District Court carries points, Penndot will temporarily add the points to your license for the conviction, but if you are successful in reducing points at the appeal, then Penndot will amend the points on your record after the appeal hearing. You will then be mailed a notice for a new trial date which is considered a “ Trial de Novo” which means you get an entirely new trial as if the traffic court conviction never occurred. This document is usually filed at the Clerk of Court office located in the county courthouse. You must complete and file a Summary Appeal form and pay the filing fee, typically $50-$75 depending on the county. You have 30 days from the date of conviction to file a Summary Appeal in the Court of Common Pleas located in the county courthouse. If you already paid the fine or if you were found guilty in traffic court, you have a second chance to get your points reduced or to have a second trial. Other clients call me because they went to traffic court themselves hoping to simply get the points reduced, but ended up getting convicted by the judge because they said the wrong thing and “talked themself” into a conviction. Neither the police officer nor the District Court are required to tell you the consequences of pleading guilty and ignorance of the consequences in no excuse in court. Many clients call me because they did not realize that the consequences of pleading guilty. ![]() This article provides a pseudo-code for the lock-free queue algorithm, which is also very small, so it can be easily implemented by various programming languages. Most of the lock-free algorithms are implemented through CAS operations. This implementation employs an efficient non-blocking algorithm based on one described in Simple, Fast, and Practical Non-Blocking and Blocking Concurrent Queue Algorithms by Maged M. It is only worth mentioning that Java’s ConcurrentLinkedQueue is based on this algorithm: This article has been cited nearly 1000 times. Scott’s 1996 paper Simple, Fast, and Practical Non-Blocking and BlockingĬoncurrent Queue Algorithms, which reviews some implementations of concurrent queues and their limitations, proposes a very simple implementation of lock-free queue, and also provides a two-lock queue algorithm on specific machines such as those without CAS instructions. Speaking of lock-free queue algorithms, we have to mention Maged M. The code base can be found on github: smallnest/queue lock-free queue algorithm flag vessels and foreign vessels operating in U.S. The information contained here represents an every 15-minute updated snapshot of Freedom of Information Act (FOIA) data on U.S. This article introduces some background knowledge of the lock-free queue algorithm, and implements three concurrent queues and provides the results of performance tests. The Corps Locks website contains lock and vessel specific information derived from the United States Army Corps of Engineers Lock Performance Monitoring System (LPMS). However, in some cases, by implementing lock-free algorithm, we can further improve the performance of concurrent queues. ![]() Generally, the queue is implemented through pointers and only operates at the head and tail of the queue, so the critical area protected by this out-of-exclusion lock does not have a very complex execution logic and the critical area is processed quickly, so in general the efficiency of the queue is already very high by implementing the out-of-exclusion lock. In a concurrent environment using queues, it is necessary to take into account the multi-threaded (multi-threaded) concurrent read and write problems, there may be multiple write (queue) operation threads, while there may also be multiple threads read operation threads, in this case, we want to ensure that the data is not lost, not duplicated, but also to ensure that the function of the queue remains unchanged, that is, the first-in-first-out logic, as long as there is data, you can get out of the column.Īdmittedly, concurrent access to the queue can be achieved through an out-of-exclusion lock. The end that performs the insert operation is called the tail and the end that performs the delete operation is called the header. Like the stack data structure, a queue is a linear table with restricted operations. A queue is a very common data structure that allows only outgoing ( dequeue) operations at the front end of a table ( head) and incoming ( enqueue) operations at the back end of a table ( tail). |
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