10 More Discussions You Might Find Interesting
1. Programming
I understand that fork create a child but I need very simple example that make child useful....
I mean how will make the program faster anyone explain with code plz
using C plz (2 Replies)
Discussion started by: fwrlfo
2 Replies
2. UNIX for Dummies Questions & Answers
I'm trying to run a simple test on how to use fork(), i'm able to execute the child process first then the parent, but how can I execute parent then child..?
Thanks! (1 Reply)
Discussion started by: l flipboi l
1 Replies
3. Programming
does fork() spawn only the parent process, what if fork() is looped, does it spawn the parent and the child? (4 Replies)
Discussion started by: Peevish
4 Replies
4. Programming
Hi,
I wrote a simple program for understanding the fork command. The code is as below
int main(void)
{
fork(); printf("hi 1 \n");
fork(); printf("hi 2 \n");
fork(); printf("hi 3 \n");
}
I am getting a variation in the number of times the printf is called if i remove the \n from each... (2 Replies)
Discussion started by: xyz123456
2 Replies
5. UNIX for Advanced & Expert Users
Hi,
I wrote a simple program for understanding the fork command. The code is as below
int main(void)
{
fork(); printf("hi 1 \n");
fork(); printf("hi 2 \n");
fork(); printf("hi 3 \n");
}
I am getting a variation in the number of times the printf is called if i remove the \n from each of... (1 Reply)
Discussion started by: xyz123456
1 Replies
6. Programming
Hi everybody,
I wanna write a code to understand how fork works.
my target
--------------
-Parent creates a file(called temp) and writes into this file "1".Then it closes the file.
-Then parent creates a child and wait until execution of this child ends.
-Then child opens the same... (3 Replies)
Discussion started by: alexicopax
3 Replies
7. Programming
hi all
About this code
for (i = 1; i < n; i++)
if ((childpid = fork()) <= 0)
break;
I really can't understand the output .
and the way fork () return the value .
how about the process Id ,the child process Id and the parent ID
in this case
so please answer me soon (5 Replies)
Discussion started by: iwbasts
5 Replies
8. Programming
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#define MAX_COUNT 200
#define BUF_SIZE 100
void main(void)
{
pid_t pid;
int i;
char buf;
fork();
pid = getpid();
for (i = 1; i <= MAX_COUNT; i++) {
sprintf(buf,... (2 Replies)
Discussion started by: MKSRaja
2 Replies
9. Programming
I run this code, actually I want to both processes print the message from "data". But only one does. What happens? Anyone can help?
#include <stdio.h>
main(){
int fd, pid;
char x;
fd = open("data",0); /* open file "data" */
pid = fork();
if(pid != 0){
wait(0);
... (2 Replies)
Discussion started by: Herman
2 Replies
10. UNIX for Dummies Questions & Answers
What is a fork? Why would one create a fork? What are the advantages and disadvantages of using a fork?
Please advise.
Thank You.
Deepali (5 Replies)
Discussion started by: Deepali
5 Replies
boot(1M) boot(1M)
NAME
boot - bootstrap process
DESCRIPTION
Itanium-based System Hardware
An system's bootstrap process involves the execution of four software components:
o CMOS
o option ROM
o EFI
o Boot Manager
o (see hpux.efi(1M)).
After the processor is reset, firmware initializes and tests processors and platform. During initialization, the firmware lets a user
interrupt and configure CMOS and option ROMs. It then transfers control to EFI, the Extensible Firmware Interface. EFI, in turn, initial-
izes EFI boot and runtime services and launches the Boot Manager. The Boot Manager, which allows loading of EFI application or drivers
from EFI defined file system, loads and transfers control to the HP-UX-specific bootstrap loader. then loads the HP-UX kernel object file
from the HP-UX file system to memory and transfers control to the loaded kernel image.
PA-RISC Hardware
The PA-RSIC bootstrap process involves the execution of three software components:
o (see pdc(1M),
o (see isl(1M), and
o (see hpux(1M).
After the processor is RESET, the (firmware), performs a self-test and initializes the processor. It then loads and transfers control to
the operating-system-independent in turn, loads and transfers control to the utility, the HP-UX-specific bootstrap loader. then downloads
the HP-UX kernel object file from an HP-UX file system and transfers control to the loaded kernel image.
SEE ALSO
hpux(1M), hpux.efi(1M), isl(1M), pdc(1M), efi(4).
boot(1M)