#include<stdio.h>
#include<stdlib.h>
#include<string.h>
int my_fork()
{
	printf("simulating fork()system call-creating a new process\n");
	return 1;
 
}
int my_exit(int status)
{
	printf("simulating exit () system call-process exiting with status %d\n",status);
	return 0;
}
	int my_open (char* filename)
{
	printf("simulating open () system call-process file: %s\n",filename);
 
	return 1;
 
}
int my_read (int fd ,char*buffer, int bytes)
{
printf("simulating read() system call,reading %d bytes from files descriptor %d /n",bytes,fd),
return bytes;
 
}
int my_write (int fd ,char*buffer,int bytes)
{
		printf("simulating read() system call,writing %d bytes to files descriptor %d /n",bytes,fd);
		return bytes;
		int my getpid()
		{
			printf("simulating getpid () system call_-getting current process in\n");
			return 1234;
 
		}
		int main {
		int child pid,fd;
		char data[]="hello world";
		child-pid=my-fork();
		if(child-pid=0)
		{
			printf("child process created with ptd:%d\n",my-get-pid(1));
			my exit(0);
 
		}
fd=my_open("my file text");
my=write (fd,data,strlen (data));
printf("currenrt process id:%d \n",my-getpid(1));
retrun 0;
}
 
 

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