Interested to Buy Any Domain ? << Click Here >> for more details...
Question:
We would like to design and implement a programming solution
to the reader-writer problem
using semaphores in C language under UNIX.
We assume that we have three readers and two writers
processes that would run concurrently.
A writer is to update (write) into one memory location
(let’s say a variable of type integer named
temp initialized to 0). In the other hand, a reader is to
read the content of temp and display its
content on the screen in a formatted output. One writer can
access the shared data exclusively
without the presence of other writer or any reader, whereas,
a reader may access the shared
memory for reading with the presence of other readers (but
not writers).
- 1 Answers
- 4949 Views
- I also Faced
- E-Mail Answers
Answer / lina wahab
1- Displays a message that declares the id of the writer
and that it starts the updating
2- Sleeps a random number of seconds between 2 and 4
seconds [2, 4].
2- Increments the content of the shared data
3- Displays a message that declares the id of the writer
and that it finishes the updating
A reader process should read the content of the shared data
and displayed it on the
screen as following:
For each access to shared data for reading:
1- Sleeps a random number of seconds between 2 and 3
seconds [2, 3].
2- displays in one line: the content of the shared data as
well as the id of itself (the reading
process).
Important notes:
1. Let each process run up to 10 iterations.
2. Your solution should ensure the non starvation of readers
| Is This Answer Correct ? | 1 Yes | 3 No |
main() { int k=1; printf("%d==1 is ""%s",k,k==1?"TRUE":"FALSE"); }
All the combinations of prime numbers whose sum gives 32
main() { char p[ ]="%d\n"; p[1] = 'c'; printf(p,65); }
write a program to find out roots of quadratic equation "x=-b+-(b^2-4ac0^-1/2/2a"
main() { printf("\nab"); printf("\bsi"); printf("\rha"); }
Finding a number which was log of base 2
Write a C function to search a number in the given list of numbers. donot use printf and scanf
main() { int x=5; for(;x!=0;x--) { printf("x=%d\n", x--); } } a. 5, 4, 3, 2,1 b. 4, 3, 2, 1, 0 c. 5, 3, 1 d. none of the above
why array index always strats wuth zero?
Finding a number multiplication of 8 with out using arithmetic operator
program to find magic aquare using array
main() { if ((1||0) && (0||1)) { printf("OK I am done."); } else { printf("OK I am gone."); } } a. OK I am done b. OK I am gone c. compile error d. none of the above
C Code 
