02-10-2010
10 More Discussions You Might Find Interesting
1. Programming
Hi,
I am trying to write stuff to a shared memory using a writer, and reading the corresponding stuff using a reader. I am facing problems while releasing the lock, as a result of which I am having segmentation faults. The code is as follows...
/********** writer.c ***********/
... (1 Reply)
Discussion started by: jacques83
1 Replies
2. Programming
Hi,
does anybody know, if it is possible to replace mutex with POSIX semaphore?
I'm gonna to rewrite old thread's program with processes and I don't want rewrite most of the code...So if I replace the threads with processes and mutexes with semaphores WILL IT WORK?
Before, the critical... (1 Reply)
Discussion started by: michael26100
1 Replies
3. Solaris
Hi,
One of my prod jobs using Ab Initio (which is Solaris Based) returned this error:
========= Error from Reformat_3.000 on f7j21-01.xxxx3.com ========= Failed opening file for flow: Resource temporarily unavailable
Flow = "Flow_11.000" connected to output port "out0" of "Reformat_3.000"... (0 Replies)
Discussion started by: teenu18
0 Replies
4. Linux
Hi all
i am facing a problem with ext3 file system
df -h is showing 19gb is used even if there is not a single file on the mount point
/dev/mapper/vg01-archive
55G 19G 33G 36% /archive_log
OS == Linux cdrsvr 2.6.9-55.ELsmp #1 SMP Fri Apr 20 17:03:35 EDT 2007... (1 Reply)
Discussion started by: ajays
1 Replies
5. Filesystems, Disks and Memory
I have a volume managed by Veritas Storage Migrator 6.0 running on Solaris 10. It has one managed volume and one tape robot it shares with netpackup (separate volume pools). When I check the process tree I am not seeing any migration processes running, but when I check the panel on the tape robot... (0 Replies)
Discussion started by: ilikecows
0 Replies
6. Solaris
Hi Guys !
I have found this problem many times that the swap space (/tmp space more precisely )of my Server becomes full specially when i run a complete back up of the server .
once the /tmp space is full I am not able to run simple commands as i get error like :
fork no space
on... (6 Replies)
Discussion started by: Paarth
6 Replies
7. Solaris
Hi Guys !
I have found this problem many times that the swap space (/tmp space more precisely )of my Server becomes full specially when i run a complete back up of the server .
once the /tmp space is full I am not able to run simple commands as i get error like :
fork no space
on... (4 Replies)
Discussion started by: Paarth
4 Replies
8. AIX
Hey Guys,
I need a help,
After I upgraded my server to AIX 6.1.4 the port 80 is occupied by a Java process
bash-3.00# netstat -Aan | grep "*.80"
f1000700007d7bb0 tcp 0 0 *.80 *.* LISTEN
bash-3.00# rmsock f1000700007d7bb0 tcp
usage: rmsock Addr... (2 Replies)
Discussion started by: kkeng808
2 Replies
9. AIX
Hi everyone,
i have a question about the Memory Management in AIX 6.1.
I have
- 128 GB RAM and
- 70 GB Page Space.
The application i am running on this machine is doing some operations in perl. These are done only once a day and uses both memory and paging space. My problem... (1 Reply)
Discussion started by: Haichao
1 Replies
10. UNIX for Beginners Questions & Answers
Hi all,
I would greatly appreciate some help with this. I may not even be on the right path but I think I am close.
I have a Synology NAS that I am running rsync jobs on to offload to USB3. These work fine.
I have backup software on our Windows Server 2008R2 that I have now realized can... (2 Replies)
Discussion started by: stefshuuj
2 Replies
LEARN ABOUT OPENSOLARIS
pthread_cond_broadcast
pthread_cond_signal(3C) Standard C Library Functions pthread_cond_signal(3C)
NAME
pthread_cond_signal, pthread_cond_broadcast - signal or broadcast a condition
SYNOPSIS
cc -mt [ flag... ] file... -lpthread [ library... ]
#include <pthread.h>
int pthread_cond_signal(pthread_cond_t *cond);
int pthread_cond_broadcast(pthread_cond_t *cond);
DESCRIPTION
These two functions are used to unblock threads blocked on a condition variable.
The pthread_cond_signal() call unblocks at least one of the threads that are blocked on the specified condition variable cond (if any
threads are blocked on cond).
The pthread_cond_broadcast() call unblocks all threads currently blocked on the specified condition variable cond.
If more than one thread is blocked on a condition variable, the scheduling policy determines the order in which threads are unblocked. When
each thread unblocked as a result of a pthread_cond_signal() or pthread_cond_broadcast() returns from its call to pthread_cond_wait() or
pthread_cond_timedwait(), the thread owns the mutex with which it called pthread_cond_wait() or pthread_cond_timedwait(). The thread(s)
that are unblocked contend for the mutex according to the scheduling policy (if applicable), and as if each had called
pthread_mutex_lock().
The pthread_cond_signal() or pthread_cond_broadcast() functions may be called by a thread whether or not it currently owns the mutex that
threads calling pthread_cond_wait() or pthread_cond_timedwait() have associated with the condition variable during their waits; however, if
predictable scheduling behavior is required, then that mutex is locked by the thread calling pthread_cond_signal() or pthread_cond_broad-
cast().
The pthread_cond_signal() and pthread_cond_broadcast() functions have no effect if there are no threads currently blocked on cond.
RETURN VALUES
If successful, the pthread_cond_signal() and pthread_cond_broadcast() functions return 0. Otherwise, an error number is returned to indi-
cate the error.
ERRORS
The pthread_cond_signal() and pthread_cond_broadcast() function may fail if:
EINVAL The value cond does not refer to an initialized condition variable.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
pthread_cond_init(3C), pthread_cond_wait(3C), pthread_cond_timedwait(3C), attributes(5), condition(5), standards(5)
SunOS 5.11 23 Mar 2005 pthread_cond_signal(3C)