When a process creates a new process using the fork() operation, which of the following resources is available for read/...
When a process creates a new process using the fork() operation, which of the following resources is available for read/write between the parent process and the child process?
a) stack
b) heap
c) shared memory segments.
Please explain the answer fully and also explain why the other 2 options are incorrect.
Homework Answers
Child and parent run concurrently, parent may create another process and child may also create another porcess. To maintain child process separate stack is maintained by parent and child.
When child process is created, the copy of heap is shared. When a child process performs write on heap, the copy is private to child process. That is not visible to parent process.
When parent process makes some changes , private copy is maintained by parent process and not visible to child process.
Answer is option c
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This is for a Unix class.
Please help me out.
I am attaching a skeletal code of the program below, it just
needs ti be filled in.
Below is a skeletal code of the program. Fork a child process and then use the
parent for reading and the child for writing. This is
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/*
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GIVEN CODE- FILL IN THE
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#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/wait.h>
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void writeX(int);
int main() /// chi read x ---> divi ---> write x into file
---> par read x --> sub--> write x into file---> chi
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Please help me out.
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Below is a skeletal code of the program. Fork a child process and then use the
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