hi, i want to write a code for forking 3 4 child. n wants that every child process one of the account from global account list. i wrote a program for that, but problem is every child is processing every account in list. what can me done to avoid it.
attaching code with it
#include <stdio.h>... (2 Replies)
Hi all,
I have a request from Developer team in my compagny, they would like to be able to share data between unix and windows world.
1. We would like to be able to see Unix data from Windows : ?Samba ?
2 We would like to be able to see windows data from Solaris (Mount point) : ?NFS server... (4 Replies)
hi !
i want to make 2 c prog such tht if i give an input in 1st prog then i can use tht input in 2nd. so over all i want to do data sharing between process using files.
plz give me suggestions how can i achieve this ?
thanks ya! (2 Replies)
I have a unix directory where a million of small text files getting accumulated every week.
As of now there is a shell batch program in place which merges all the files in this directory into a single file and ftp to other system.
Previously the volume of the files would be around 1 lakh... (2 Replies)
Hi everyone,
I want to cross-compile libiconv for uclinux to create a static library. I use the following command :
./configure --enable-static --disable-shared --build=i686-pc-linux-gnu --host=nios2-unknown-linux-gnu --prefix=/home/captain/Programs/nios2-linux/uClinux-dist/staging/usr... (2 Replies)
Hi,
I have a script below for extracting xml from a file.
for i in *.txt
do
echo $i
awk '/<.*/ , /.*<\/.*>/' "$i" | tr -d '\n'
echo -ne '\n'
done
.
I read about using multi threading to speed up the script.
I do not know much about it but read it on this forum.
Is it a... (21 Replies)
Discussion started by: chetan.c
21 Replies
LEARN ABOUT OSF1
lock_write
lock_write(9r)lock_write(9r)NAME
lock_write - Asserts a complex lock with write access
SYNOPSIS
#include <kern/lock.h>
void lock_write(
lock_t lock_structptr );
ARGUMENTS
Specifies a pointer to the complex lock structure, lock. This is the lock structure associated with the resource on which you want to
assert a complex lock with write access. The lock structure is an opaque data structure; that is, its associated members are referenced and
manipulated by the operating system and not by the user of the complex lock mechanism.
DESCRIPTION
The lock_write routine asserts a lock with exclusive write access for the resource associated with the specified lock structure pointer.
This means that once a write lock is asserted, no other kernel thread can gain read or write access to the resource until it is released.
To release a complex write lock successfully asserted by lock_write, call the lock_done routine.
NOTES
You must call lock_init (once only) prior to calling lock_write to initialize the lock structure pointer for the resource. A resource,
from the kernel module's standpoint, is data that more than one kernel thread can manipulate. You can store the resource in global vari-
ables and in data structure members.
RETURN VALUES
None
FILES SEE ALSO
Routines: lock_done(9r), lock_read(9r), lock_terminate(9r), lock_try_read(9r), lock_try_write(9r)
Data Structures: lock(9s)lock_write(9r)