Which events can change the state of a thread t from Locking object o to Enabled(that is, ready to run)? Question 18 optio
Q: Write a program called SharedCounter.cs in which 10 threads each increment a shared int counter 10…
A: Lets see the solution.
Q: is simply a priority algorithm where the priority 1. (p) is the inverse of the (predicted) next CPU…
A: Implementation in FCFS is managed in form of queue. All the answers are in step 2.
Q: rent states of a Threads? hich state a thread Will hold when start( function is initiated?
A: A thread in Java at any point of time exists in any one of the following states. A thread lies only…
Q: The code is rewritten as follows, to make the lock more "fine grained" by moving the "other stuff"…
A: Here both process is performing lock on m and then executing. Here if thread 2 execute first then…
Q: When you call a(n)_____________ it returns control to the calling code before it finishes executing.…
A: Answer: When you call a(n)_____________ it returns control to the calling code before it finishes…
Q: A Mediation centre wants to encourage young generation to practice yoga and meditation. It offers…
A: The ask is to do the following: - create a class to store the user details - create a thread to get…
Q: Which of the following statements about condition variables are true? O (a) Waiting on a condition…
A: In the given statements about condition variables are true
Q: Check the following code: 1. The thread does not get executed; fix the code so the thread will be…
A: Thread is a lightweight process that executes on its own. Threads are used to run different…
Q: a) What are the different states of a Threads? Which state a thread will hold when start() function…
A: Solution Different states of thread
Q: 5. A thread is a______ : a) lightweight process where the context switching is low b) lightweight…
A: In this answer I will be discussing about threads.
Q: class ThreadB extends { Il extends which class int b1, b2; public ThreadB ( { I/ arguments b1 =…
A: The program is written in Java. Please find the correct source code and output in the following…
Q: public void run( ) { for (int i- 1; i <= 5; i++) { System.out.printin("From Thread A with i = "+…
A: The Thread.sleep() method may be used to interrupt the current thread's execution for a given amount…
Q: Exercice 1:Thread creation- 1/ Complete the missing code in order to allow the main thread to create…
A: The following code id used to allow the main thread to create a worker thread that will execute…
Q: 4. a) Which missing code will create and start this thread? public class MyRunnable implements…
A: Answer: (a) new Thread(new MyRunnable()).star is missing code will create and start this thread.…
Q: ted user credentials need to be downloaded from a remote database. While a main thread executing the…
A: DispatchQueue.main.async { // Update the UI theView.updateUI() }
Q: Create a program that allows users to enter the number of voters, then generates 3 Threads. Thread…
A: Class voters extends thread{ @override public void run(){ int x; for (int i =0; i<=3; i++){…
Q: Consider the ULT states (a) and (b) shown in the figure below - (a) is the initial state and (b) is…
A:
Q: Which missing code will create and start this thread? public class MyRunnable implements Runnable {…
A: Given : Which missing code will create and start this thread?public class MyRunnable implements…
Q: Which of the following is false? Select one: A counting semaphore can be accessed using more than…
A: False :- select one
Q: to add a while (true) def reader (): and def writer (): in way when I run the code down will not…
A: It is defined as The best way to learn Python is by practicing examples. The page contains examples…
Q: Let’s say we have two threads in process A one thread needs I/O how it will receive I/O would it be…
A: A thread is a fundamental unit of CPU processing. A thread is also known as a lightweight process. A…
Q: Write a program to create two Threads. Enter a sentence from the user in main function, In 1st…
A: Thread: A thread is a lightweight, independent process. Each thread will create its own stack for…
Q: 339. A thread becomes non runnable when? a. Its stop method is invoked b. Its sleep method is…
A: 339. A thread becomes non runnable when? a. Its stop method is invoked b. Its sleep method is…
Q: The remote method invocation * a) allows a process to invoke memory on a remote object b) allows a…
A: Computer Programming: Programming is the procedure of forming a set of instructions that directs a…
Q: Which missing code will create and start this thread? public class MyRunnable implements Runnable {…
A: Given : Which missing code will create and start this thread?public class MyRunnable implements…
Q: Using traceroute write me a script that does the following, asks for your first name and last name,…
A: #!/bin/bashecho "Enter first name"read firstnameecho "Enter last name"read lastnameecho "Enter…
Q: What are possible values of y? If either thread goes first initialization int x = 7; int y = 2;…
A: Here both thread 1 and thread 2 are trying to access x and y and execute their statement…
Q: Consider a Semaphore named “mux”, Semaphore mux = new Semaphore(-2); mux.acquire(); number++;…
A: A) It is an Asynchronous (backend) operation. A semaphore is a signalling mechanism and a thread…
Q: credentials may be available in a remote database. The wanted user credentials need to be downloaded…
A: The following statement ensures that the main thread is updated on the main queue.…
Q: 2) Which code is suitable to start a thread? class X implements Runnable { public static void…
A: Task :- Complete the Java code to start a thread. Java program :- class X implements Runnable {…
Q: When should you use a fork() over a thread? Group of answer choices A. When you need to execute a…
A: When should you use a fork() over a thread? ans: A. When you need to execute a process in isolation.…
Q: Q)What is the function of the POSIX system call "pthread_join"? a)For synchronization among peer…
A: Dear learner, hope you are doing well , I will try my best to answer this question. Thank You!!
Q: A race condition does not occur between two threads that have no shared state.
A: A race condition occurs when two or more threads can access shared data and they try to change it at…
Q: have a web server program. It works as follows: the parent thread waits for new client connections.…
A: the parent thread waits for new client connections. Once a new client connection comes in, the…
Q: 1. Create three child threads with the name first, second and third. 2. Change the priority of the…
A: Notre: Since you have not provided the language to write the code so I am using java language to…
Q: D. All of the mentioned
A: mutex is - A. a mutually exclusive synchronization object B. can be acquired by more than one…
Q: added a loop while (true) to both def reader (): and def writer () but still not working in way…
A: Python is a powerful general-purpose programming language. It is used in web development, data…
Q: lustrate with code fragment using Pthread condition variable, how a thread can wait for a condition…
A: This is very simple. We are given, a = 5 and b = 0 which means the difference is 5-0 = 5 We will…
Q: Question A.4: What will the code in Figure 2 most likely print? Explain briefly your answer. You can…
A: Source Code with comments #include <stdio.h>#include <pthread.h> int A=0;pthread_t…
Q: If the thread pool contains no available thread : Select one: a.the server runs a new process b.the…
A: This question comes from Operating System which is a paper of Computer Science. Let's discuss it in…
Q: Please explain whether the following code satisfies bounded waiting. If yes, ho many times a thread…
A: As we know Bounded Waiting means no process/thread should wait for a resource for infinite amount of…
Q: Q)What is the function of the POSIX system call "pthread_join"? a)For synchronization among peer…
A: Note : As per the bartleby policy we can answer single question at a time. If you want the solution…
Q: Write program for the following Create a child thread class for sorting an array of 10000 size…
A: A you have posted multiple questions, we will solve the first three questions for you. 1. For…
Q: OPERATING SYSTEMS Consider the following code segment: pid t pid; pid = fork(); if (pid == 0) { /*…
A: The answer with explanation is given below
Q: Steve's job is to delete more characters as much as possible using this method and print the file…
A: In this problem we need to design a java script function and then continue on the logic and display…
Q: HOW DO I COMPLETE THIS CODE SUCCESSFULLY? Using the thread3.c program provided below, itt will…
A: Answer is given below .
Which events can change the state of a thread t from Locking object o to Enabled(that is, ready to run)?
Question 18 options:
a)
if no other thread holds the lock on o and the system grants t the lock on o
b)
if t was Waiting on object o and another thread th executes o.notifyAll()
c)
if another thread th holds the lock on o and executes the static yield method
d)
if another thread th executes t.interrupt()
e)
if another thread th executes t.start()
Step by step
Solved in 2 steps
- Which of the following statements are true? a. The notify() method can wake only one waiting thread. b. An exception would occur if no thread is waiting on the object when the notify() method is invoked on the object. c. When wait() is invoked, it pauses the thread and releases the lock on the object simultaneously. When the thread is restarted after being notified, the lock is automatically reacquired. d. The wait(), notify(), and notifyAll() methods must be invoked from a synchronized method or a synchronized block.Consider a Semaphore named “mux”, Semaphore mux = new Semaphore(-2); mux.acquire(); number++; mux.release(); If three threads T1,T2 and T3 are trying to access the shared data (number) concurrently, a. Will any thread be able to go into its critical section? Explain. b. Will there be a race condition among the threads? c. What will be the final value of the variable “number” if its initial value is 0? d. Correct the code, if race condition exists.339. A thread becomes non runnable when? a. Its stop method is invoked b. Its sleep method is invoked c. Its finish method is invoked d. Its init method is invoked
- : Suppose we have the following code:public class Foo {public Foo() { ... }public void first() { ... }public void second() { ... }public void third() { ... }}The same instance of Foo will be passed to three different threads. ThreadA will call first,threads will call second, and thread( will call third. Design a mechanism to ensure thatfirst is called before second and second is called before third. need ans in 40 minutesComputer Science need this code to be solved wtihin 20 min solve Write a program called SharedCounter.cs in which 10 threads each increment a shared int counter 10 times. When all the threads have finished, print the final value of the counter. If the initial value is zero, do you always get 100? Arrange for your code to sometimes print the wrong answer. (Hint: try using some well-placed calls to Thread.sleep())I do ot how the code working ? would yu explain it ? from threading import Thread, Lockfrom datetime import datetimeimport time # 2shared_resource = ""lock = Lock() # 1modify_readers = Lock();n_readers = 0; # 3fifo_lock = Lock() def wait(): time.sleep(2)### def acquire_reader():global n_readers, modify_readers, fifo_lockfifo_lock.acquire()modify_readers.acquire()fifo_lock.release() n_readers += 1;if(n_readers == 1): lock.acquire() modify_readers.release()### def release_reader():global n_readers, modify_readers, fifo_lockmodify_readers.acquire() n_readers -= 1;if(n_readers == 0): lock.release() modify_readers.release()### def write_normal():while True:global shared_resource, fifo_lock fifo_lock.acquire()lock.acquire()fifo_lock.release() print("Writing normal")shared_resource = datetime.now() lock.release()wait()### def write_reverse():while True:global shared_resource, fifo_lock fifo_lock.acquire()lock.acquire()fifo_lock.release() print("Writing reverse")shared_resource =…
- Let's say we have the following code: public class Foo {public Foo() { ... }public void first() { ... }public void second() { ... }public void third() { ... }} The identical Foo object will be handed to three distinct threads. ThreadA will be the first to call, followed by Threads and Thread(. Create a system to ensure that the first is called before the second and the second is called before the third.Can you explain this code ? from threading import Thread, Lockfrom datetime import datetimeimport time # 2shared_resource = ""lock = Lock() # 1modify_readers = Lock();n_readers = 0; # 3fifo_lock = Lock() def wait(): time.sleep(2)### def acquire_reader():global n_readers, modify_readers, fifo_lockfifo_lock.acquire()modify_readers.acquire()fifo_lock.release() n_readers += 1;if(n_readers == 1): lock.acquire() modify_readers.release()### def release_reader():global n_readers, modify_readers, fifo_lockmodify_readers.acquire() n_readers -= 1;if(n_readers == 0): lock.release() modify_readers.release()### def write_normal():while True:global shared_resource, fifo_lock fifo_lock.acquire()lock.acquire()fifo_lock.release() print("Writing normal")shared_resource = datetime.now() lock.release()wait()### def write_reverse():while True:global shared_resource, fifo_lock fifo_lock.acquire()lock.acquire()fifo_lock.release() print("Writing reverse")shared_resource = str(datetime.now() )[::-1]…Considering the following algorithm, which of the following requirements are satisfied? Provide explanation for each selection or non-selection Int thread_num = 1; thread1 { While (true) { while(thread_num == 2); /* start of critical section */ … /* end of critical section */ thread_num == 2 … } } thread2 { While (true) { while(thread_num == 1); /* start of critical section */ … /* end of critical section */ thread_num == 1 } } a. Mutual exclusion b. Progress c. Bounded waiting d. None of the above
- Write complete Java code to define a thread for printing all the Odd Nos from 1 to 5000 which are divisible by 9. Thread must sleep for 5 seconds. Implement the threading using the Runnable java provided Interface. Finally, create three different threads with names ThreadOne, ThreadTwo and ThreadThree in main(). Execute the code in the file where threading is implemented. Apply the Java multithreading exception handling mechanism properlyHow to write this code to a Pseudo Code? from threading import Thread, Lockfrom datetime import datetimeimport time # 2shared_resource = ""lock = Lock() # 1modify_readers = Lock();n_readers = 0; # 3fifo_lock = Lock() def wait():time.sleep(2)### def acquire_reader():global n_readers, modify_readers, fifo_lockfifo_lock.acquire()modify_readers.acquire()fifo_lock.release() n_readers += 1;if(n_readers == 1): lock.acquire() modify_readers.release()### def release_reader():global n_readers, modify_readers, fifo_lockmodify_readers.acquire() n_readers -= 1;if(n_readers == 0): lock.release() modify_readers.release()### def write_normal():while True:global shared_resource, fifo_lock fifo_lock.acquire()lock.acquire()fifo_lock.release() print("Writing normal")shared_resource = datetime.now() lock.release()wait()### def write_reverse():while True:global shared_resource, fifo_lock fifo_lock.acquire()lock.acquire()fifo_lock.release() print("Writing reverse")shared_resource = str(datetime.now()…Assignment 5.py: #Assignment 5 import Queueimport threadingimport timeimport random THREADS = 200 class addingThread (threading.Thread):def __init__(self, l):threading.Thread.__init__(self)self.threadID = 3self.name = "addingThread"self.l = lself.iteration = 0 def run(self):#delay start by a random time between 0 and 0.1 secsleep_time= random.randint(1,1000)/10000.0time.sleep(sleep_time)while self.iteration < len(self.l):#remove the comment for Question 1.3#lock.acquire()self.l[self.iteration] = self.l[self.iteration] +1#remove the comment for Question 1.3#lock.release()self.iteration= self.iteration + 1#remove the comment for Question 1.3 #lock = threading.Lock()workList = range(1,101)threads = [] # Create new threadsthread_num=0while thread_num < THREADS:thread = addingThread(workList)threads.append(thread)thread_num = thread_num +1 # Start threadsfor t in threads:t.start() # Wait for all created threads to finishfor t in threads:t.join() #print final listprint "Final list:…