semaphore concept Post: 302134048

9 More Discussions You Might Find Interesting

1. HP-UX

LUN concept

In my location we have Hp storage (san),from there they created luns, so could u plz send me clear document for understanding LUN.

2. UNIX for Dummies Questions & Answers

The Concept of thread

Hi all This is my first thread here.i confused with the concept of thread.Can anyone tell me this concept in detail.my Quation may be at primary level. Thanx in advance for help.

3. UNIX for Dummies Questions & Answers

about concept of Interrupts.

Hi all, I am new here ,i want to know about interrupts in detail.What r Interrupts .how they r handeled. Thanx in adavnce.

4. Shell Programming and Scripting

Hi all, I used array a lot in C,VB,C# and java but now i am very new to shell programming,so i need a start of array in shell programming. All i want to do is read a string and put it into a character type array. For reading the string,i did this: $ read a now i want to put the content of a...

5. AIX

Use of mirroring concept....

hi.... Friends... Why using mirroring ? what is the use of mirroring? just any one tell about clearly.... thanks....

6. UNIX for Dummies Questions & Answers

help me in RAID concept...

i couldn't get what does the metainit command represents in numeric values. (i.e) #metainit d66 2 1 c0t0d0s4 1 c0t0d0s5 ??here 2 1 1 represnts what ?? can some one tell clearly about this...

7. UNIX for Advanced & Expert Users

Looping concept please help

Hi Gurus, Please help me in below requirement. Instance =5 (it is user parameter) total=52 (it is user parameter i need to split this to 5 and reminder as 1 instances totally 6 for example i need to splitt to each 52/5=10.4 1-10 11-20 21-30 31-40 41-50

8. UNIX for Dummies Questions & Answers

ACL concept

Hi.. Could someone explain about setfacl,getfacl in unix and its uses. Regards, Suresh

9. UNIX for Dummies Questions & Answers

Confusion with the concept of wc -c and wc -m

Is wc -c and wc -m same ? Shellscript::cat file1 hello Shellscript::cat file1 | wc -c 6 Shellscript::cat file1 | wc -m 6 Shellscript::file file1 file1: ASCII text Shellscript::uname -a Linux was85host 2.6.27.45-0.1-vmi #1 SMP 2010-02-22 16:49:47 +0100 i686 i686 i386 GNU/LinuxAtleast...

LEARN ABOUT CENTOS

semaphore.h

semaphore.h(3HEAD)                                                    Headers                                                   semaphore.h(3HEAD)

NAME

       semaphore.h, semaphore - semaphores

SYNOPSIS

       #include <semaphore.h>

DESCRIPTION

       The  <semaphore.h>  header  defines  the sem_t type, used in performing semaphore operations. The semaphore can be implemented using a file
       descriptor, in which case applications are able to open up at least a total of {OPEN_MAX} files and semaphores. The  symbol  SEM_FAILED  is
       defined (see sem_open(3RT)).

       Inclusion  of  the <semaphore.h> header can make visible symbols defined in the headers <fcntl.h> and <sys/types.h>. See fcntl.h(3HEAD) and
       types.h(3HEAD).

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Interface Stability          |Standard                     |
       +-----------------------------+-----------------------------+

SEE ALSO

       fcntl.h(3HEAD), types.h(3HEAD),  sem_destroy(3RT),  sem_getvalue(3RT),  sem_init(3RT),  sem_open(3RT),  sem_post(3RT),  sem_timedwait(3RT),
       sem_unlink(3RT), sem_wait(3RT), attributes(5), standards(5)

SunOS 5.10                                                          10 Sep 2004                                                 semaphore.h(3HEAD)