ABORT_EXCLUSIVE_WAIT(9) Driver Basics ABORT_EXCLUSIVE_WAIT(9)NAME
abort_exclusive_wait - abort exclusive waiting in a queue
SYNOPSIS
void abort_exclusive_wait(wait_queue_head_t * q, wait_queue_t * wait, unsigned int mode, void * key);
ARGUMENTS
q
waitqueue waited on
wait
wait descriptor
mode
runstate of the waiter to be woken
key
key to identify a wait bit queue or NULL
DESCRIPTION
Sets current thread back to running state and removes the wait descriptor from the given waitqueue if still queued.
Wakes up the next waiter if the caller is concurrently woken up through the queue.
This prevents waiter starvation where an exclusive waiter aborts and is woken up concurrently and no one wakes up the next waiter.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 ABORT_EXCLUSIVE_WAIT(9)
Check Out this Related Man Page
SbCondVar(3) Coin SbCondVar(3)NAME
SbCondVar -
A class for synchronizing access to global variables.
Condition variables are used to protect global variables in an environment where multiple threads are running concurrently.
SYNOPSIS
#include <Inventor/threads/SbCondVar.h>
Public Member Functions
SbCondVar (void)
~SbCondVar (void)
SbBool wait (SbMutex &mutex)
SbBool timedWait (SbMutex &mutex, SbTime period)
void wakeOne (void)
void wakeAll (void)
Detailed Description
A class for synchronizing access to global variables.
Condition variables are used to protect global variables in an environment where multiple threads are running concurrently.
Constructor & Destructor Documentation
SbCondVar::SbCondVar (void) [inline]
Constructor.
SbCondVar::~SbCondVar (void) [inline]
Destructor.
Member Function Documentation
SbBool SbCondVar::wait (SbMutex &mutex) [inline]
This method blocks the calling thread until another thread calls wakeOne() or wakeAll() on the SbCondVar object.
SbBool SbCondVar::timedWait (SbMutex &mutex, SbTimeperiod) [inline]
This method blocks the calling thread until another thread calls wakeOne() or wakeAll() on the object, but if this does not happen within
period, the thread is woken again anyways.
TRUE is returned when the thread wakes because either wakeOne() or wakeAll() was called, FALSE is returned if the wait times out.
void SbCondVar::wakeOne (void) [inline]
This method wakes up one of the threads waiting on this SbCondVar.
void SbCondVar::wakeAll (void) [inline]
This method wakes up all the threads waiting on this SbCondVar.
Author
Generated automatically by Doxygen for Coin from the source code.
Version 3.1.3 Wed May 23 2012 SbCondVar(3)
Hi everyone,
I know the following questions are noobish questions but I am asking them because I am confused about the basics of history behind UNIX and LINUX.
Ok onto business, my questions are-:
Was/Is UNIX ever an open source operating system ?
If UNIX was... (21 Replies)
Hello and thanks in advance for any help anyone can offer me
I'm trying to learn the find command and thought I was understanding it... Apparently I was wrong. I was doing compound searches and I started getting weird results with the -size test. I was trying to do a search on a 1G file owned by... (14 Replies)
hi all,
i have installed quota on my centos 7 machine and its what im after (setting size limit on users, so they cant fill the hard drive)
i want to now make this part of my create user script for my sftp server so i want to do a echo and a read command so i capture the limit they enter... (0 Replies)
Hi everybody,
Which Unix base OS have best performance for HOST virtualization?
I tested SmartOS but it needs another OS to connect remotely!
Thanks in advance. (11 Replies)
Hi All,
I need to write a shell script which opens a file and increments the version(text) within the file every time the script runs. For example:
$ cat docker_file.yml
version: '3.1'
services:
ui:
image: repo-srv.dev.io:5000/facebook/ui:0.0.2-QA1
$
So, I would like... (6 Replies)
Dear Team
We use DB2 v10.5 and using DBArtisan tool
Can someone please guide how to convert digits to binary numbers using db2 feature.
Ex> for number 9 , binary should be 1001 ( 8+1)
Any help appreciated. Thanks (2 Replies)
hi folks,
how to using tar with exclude directory and compress it using tar.Z
i only know how to exclude dir only with this command below:
tar -cvf /varios/restore/test.tar -X excludefile.txt /jfma/test1/
how to compress it using 1 command?
Thanx
Please use CODE tags as... (6 Replies)
Quite an obscure question I think.
We have a rebuild process for remote sites that allows us to PXE rebuild a till (actually a PC with a touch screen and various fancy bits) running CentOS. The current CentOS5 tills work just fine with a tar image restore and some personalisation. Sadly,... (4 Replies)
Hello All,
I had recently learnt a bit of Docker(which provides containerization process).
Here are some of my learning points from it.
Let us start first with very basic question:
What is Docker:
Docker is a platform for sysadmins and developers to DEPLOY, DEVELOP and RUN applications ... (7 Replies)
What is the point of this? Whenever I close my shell it appends to the history file without adding this. I have never seen it overwrite my history file.
# When the shell exits, append to the history file instead of overwriting it
shopt -s histappend (3 Replies)
Hello... And thanks in advance for any help anyone can offer me
I was trying to work out the differences between displaying modify, access, and change times with the 'ls' command. Everything seems in order when I look at files, but the access time on a directory doesn't seem to change when I... (4 Replies)
Hello everyone,
I am having an issue here with CentOS release 6.6 (Final) that shows all of the space used up, but I can't tell where the space went.
Seemingly I am using up 100%, according to
df -h
Filesystem Size Used Avail Use% Mounted on... (27 Replies)
I'm trying to use a bash script for a psych experiment that involves listening to sound files and responding. If I have something like the code below, how can I make sure that a key press is assigned to RESPONSE only after the second echo statement?
for i in 1 2 3; do
echo "Ready?"
sleep 2
... (10 Replies)
After the success of the jq - tool for parsing and manipulating JSON-Data someone wrote a tool called yq, which aims to be the same for YAML, what jq is for JSON. Seems to work fine. I'll definitely give it a chance in future.
Example YAML-File:
--- !ruby/object:Puppet::Node::Facts
... (1 Reply)
Dear All,
I am very pleased to announce that Dave Munro (gull04) is joining the Moderation Team, after being a very valuable member of UNIX.com for 15+ years.
Dave is an IT Consultant with 30 years of experience this year, has worked in many of the industry vertical market segments and has... (6 Replies)