PLS GIVE ME ANSWER OF MY QUESTION...IS BELOW..THANKS..DIVYA JAIN..MY ID divyansh22@yahoo.co.in

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I need help with the following lab. Can anyone explain it to me on how to approach this problem. Coding would be great too !!! No busy waiting allowed. Remember that Java monitors are 'signal and continue'. The input data is called the database (DB). In this problem, it consists of a single variable initialized in the main thread, to contain the current time of day in HH:MM:SS:mmm format (mmm is milliseconds) truncated to 3 digits. Threads follow these rules: 1. Readers may all attempt to read at the same time, but NOT if a writer is writing (i.e.; the writer is in the monitor. 2. Writing is exclusive (only 1 writer at a time, no readers while writing). 3. Options: (to be specified by instructor) a. Readers have absolute priority over writers. b. Writers have absolute priority over readers c. When a reader arrives and a writer is waiting, the reader is suspended behind the writer instead of being admitted immediately. Thus, a writer waits for readers that were running when it arrived, but does not to wait for new readers. You may program this in C++ or Java. There are 4 controlling input values: 1. r – number of readers 2. w – number of writers 3. R – delay for a reader to restart 4. W – delay for a writer to restart Create the following program consisting of 1 main process (your main program) with n threads: 1. The main thread: a. Creates the 'n' threads needed. Of these, r of them are readers and w of them are writers. Starts all readers and writers. b. Waits for all 'n' threads to complete. You may use any method to detect when they are all complete. c. Prints out the resulting outputs from the threads. 2. Threads: a. When a thread starts to run, it immediately tries to enter the monitor. b. A reader thread reads the DB, outputs the exact message below, then exits: >>> DB value read =: HH:MM:SS:mmm by reader number: rr where the underlined text is replaced with actual data. c. A writer thread updates the DB with a new value (from the system time), outputs the exact message below, then exits: *** DB value set to: HH:MM:SS:mmm by writer number: ww where the underlined text is replaced with actual data. d. Each thread accesses the data a total of 10 times, exiting, then re-entering the monitor after each access. Hints: 1. File access *might* not be thread-safe, so you should be prepared to handle this. Read the documentation for the language you are using. 2. Suggested values for delays are: a. If looping, R >=1,000,000 and W>=100,000 b. If using “sleep”, then R=100 ms, W=50 ms. Additional: • Thread output is to ONE file used by ALL threads (so you need to synchronize access to it). • Readers must provide sufficient delay that results are useful (delay by R before re-trying). R is another input value. • Writers must also delay. Delay by W, updating the DB each time. W is an input. • Test your program with AT LEAST TWO different sets of values for r and w (#s of readers and writers) plus this set: r = 4, w=2. Basic operation of a thread: attempt to enter the monitor. If unsuccessful, you get put on a queue. When you get in, read or write the data (depending on type of thread), exit the monitor, wait the required delay amount, then try again. Repeat 10 times.

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What are the causes of liner high temperature?

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2. Tell me about a time when you had to use your presentation skills to influence someone's opinion.

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object is physical and class is logical..here class is not occupying any memory as our definition of class but i got a question then the class where it stores if it is not occupying any memory....

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How to estimate chlorophyll in microalgae?

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is computer knowledge is must to work for bpos????????//

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.have you ever written compiled module? if yes , tell me about some of the function that you wrote.

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What is partner profile?tell me the parameter of partner profile?Tcode for creating a partner profile?

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Can you please help me calculate the pre tax profit for credit card for 2014 using the following Assumptions. Request you to list the steps used. Charges Late fee £12 per occurrence Over limit fee £10 per occurrence Cash fees 3% of cash withdrawal value Annual Fee £25 per account, per year Interchange 1% of transaction value KPIs Accounts overdue 10% per month Accounts over limit 15% per month Average APR 30% Balances revolving 90% of balance Average balance £900 at end of 2013 Expected growth in average balance (2014) 10% per annum Assumptions Open accounts 200,000 at 2013 year-end New accounts booked 5,000 per month Annual operating cost £50 per open account Cost of Acquisition £50 per account Provision rate 9% of total balances Annual cost of funds 4% by balance Charge off Unit charge-off rate in 2014 11% of accounts at 2013 year-end Unit charge-off rate in 2014 0% of accounts booked in 2014 Post charge-off recoveries 20% of balance Account Transactions Monthly turnover 5% of total month end balances Cash advances 20% of monthly turnover Additional Assumptions Please state any additional assumptions you have made to calculate your answer Thanks in advance,

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why the starch added with sucrase give positive result in Benedict's test?

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pls. tell all the commands for configure cisco router 1900 series.

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What are the SSL formats supported by iPlanet/SunOne?

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what is different b/w current a/c and savings a/c?

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What do you mean by Frame 5 Gas Turbine as well as Mark II.

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