05-18-2003
Neo, this thread is closed. How are folks supposed to respond to your query? (I opened it long enough to post this.)
I'm not sure what the best policy is. But I don't think that I am really doing anyone a favor by doing their assignments for them.
If we do allow homework questions, I think people are more apt to get a useful response if they show some evidence of a reasonable attempt to help themselves rather than simply posting the question.
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Please inform me on how I can resolve the PaTcH_MsG 8 Version message below I am running solaris 9 9/05 HW on a Sun V445. Thank you.
# pkgadd SUNWqlc
Processing package instance <SUNWqlc> from </var/spool/pkg>
Qlogic ISP 2200/2202 Fibre Channel Device Driver
(sparc)... (3 Replies)
Discussion started by: GLJ@USC
3 Replies
2. Shell Programming and Scripting
Hi,
I have automated a build process that does the following activities.
1. check out code from cvs to a specific directory
2. build the revision checked out with 'ANT'
3. integrate the compiled code with the QA/UAT or new environment
(/apps/QA or /apps/UAT or /apps/new directory)
I... (1 Reply)
Discussion started by: yoi2hot4ya
1 Replies
3. Shell Programming and Scripting
Hi guys,
Been sifting through these forums for awhile, but never had an account or needed to post. Shoutouts to a great forum with heaps of useful info.
Now i consider myself a noob when it comes to linux and to bash scripting. I recently started to learn to use Vmware ESX server which uses... (4 Replies)
Discussion started by: ryath
4 Replies
4. IP Networking
I am using freespire 2.0.8 and am unable to get any peer to peer program to work past a firewall. I am not sure where the firewall is ( I didn't set anything up in Freespire). My guess is/was the router as I am using a wireless connection. I just replaced my linksys wrk54G with a Netgear WGR614 and... (1 Reply)
Discussion started by: Paul K
1 Replies
5. Emergency UNIX and Linux Support
We are using the solaris server and if i am using rm -rf to delete the directories its asking the confirmation for each and every file inside the directory.Is there any way to disable ( should not ask the confirmation) only for a particular session? (12 Replies)
Discussion started by: sureshbabuc
12 Replies
6. UNIX and Linux Applications
Hello,
I have been trying to setup the following squid configuration http://veloso.org/SquidConfig/SquidConfig.html
but every time I get to start squid I get the following error-
2012/05/28 10:31:12| WARNING: redirector #1 (FD 7) exited
2012/05/28 10:31:12| WARNING: redirector #2 (FD 9)... (2 Replies)
Discussion started by: jamie_123
2 Replies
7. Shell Programming and Scripting
I've my below script compile.yk. This compiles programs in batch and any failed to compile modules will be mailed to my attention.
cd /inv1/io13000/mbmport/mbmerr
ERRFL=/inv1/io13000/srcport/$$_errorlist.txt
X=`ls *.c?? |wc -l`
if
then
echo "Review library path:... (0 Replies)
Discussion started by: Yuvaraj737
0 Replies
8. Linux
We are using ksh on Linux (Thats what architect told me).
1) When I am using up and down arrow key, I can not navigate to previous and next commands. How can I navigate commands in ksh ? Someone told me that I need to have bash shell installed ? Can I have bash shell installed on ksh ? OR can I... (3 Replies)
Discussion started by: paramshamnani
3 Replies
9. Red Hat
Hi guys,
thanks for your kind assistance. I have a rhel6.4 server. After I did an update, the server does not reboot. Also user logins take for ever.
Please any help on this matter will be appreciated .
Thank you (2 Replies)
Discussion started by: cjashu
2 Replies
LEARN ABOUT OSX
sem_trywait
SEM_WAIT(2) BSD System Calls Manual SEM_WAIT(2)
NAME
sem_trywait, sem_wait -- lock a semaphore
SYNOPSIS
#include <semaphore.h>
int
sem_trywait(sem_t *sem);
int
sem_wait(sem_t *sem);
DESCRIPTION
The semaphore referenced by sem is locked. When calling sem_wait(), if the semaphore's value is zero, the calling thread will block until
the lock is acquired or until the call is interrupted by a signal. Alternatively, the sem_trywait() function will fail if the semaphore is
already locked, rather than blocking on the semaphore.
If successful (the lock was acquired), sem_wait() and sem_trywait() will return 0. Otherwise, -1 is returned and errno is set, and the state
of the semaphore is unchanged.
ERRORS
sem_wait() and sem_trywait() succeed unless:
[EAGAIN] The semaphore is already locked.
[EDEADLK] A deadlock was detected.
[EINTR] The call was interrupted by a signal.
[EINVAL] sem is not a valid semaphore descriptor.
NOTES
Applications may encounter a priority inversion while using semaphores. When a thread is waiting on a semaphore which is about to be posted
by a lower-priority thread and the lower-priority thread is preempted by another thread (of medium priority), a priority inversion has
occured, and the higher-priority thread will be blocked for an unlimited time period. Programmers using the realtime functionality of the
system should take care to avoid priority inversions.
SEE ALSO
sem_open(2), sem_post(2), semctl(2), semget(2), semop(2)
HISTORY
sem_wait() and sem_trywait() are specified in the POSIX Realtime Extension (1003.1b-1993/1003.1i-1995).
Darwin June 8, 2000 Darwin