SEM_UNLINK(3) Linux Programmer's Manual SEM_UNLINK(3)NAME
sem_unlink - remove a named semaphore
SYNOPSIS
#include <semaphore.h>
int sem_unlink(const char *name);
Link with -pthread.
DESCRIPTION
sem_unlink() removes the named semaphore referred to by name. The semaphore name is removed immediately. The semaphore is destroyed once
all other processes that have the semaphore open close it.
RETURN VALUE
On success sem_unlink() returns 0; on error, -1 is returned, with errno set to indicate the error.
ERRORS
EACCES The caller does not have permission to unlink this semaphore.
ENAMETOOLONG
name was too long.
ENOENT There is no semaphore with the given name.
CONFORMING TO
POSIX.1-2001.
SEE ALSO sem_getvalue(3), sem_open(3), sem_post(3), sem_wait(3), sem_overview(7)COLOPHON
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2012-05-13 SEM_UNLINK(3)
Check Out this Related Man Page
SEM_UNLINK(3) Linux Programmer's Manual SEM_UNLINK(3)NAME
sem_unlink - remove a named semaphore
SYNOPSIS
#include <semaphore.h>
int sem_unlink(const char *name);
Link with -pthread.
DESCRIPTION
sem_unlink() removes the named semaphore referred to by name. The semaphore name is removed immediately. The semaphore is destroyed once
all other processes that have the semaphore open close it.
RETURN VALUE
On success sem_unlink() returns 0; on error, -1 is returned, with errno set to indicate the error.
ERRORS
EACCES The caller does not have permission to unlink this semaphore.
ENAMETOOLONG
name was too long.
ENOENT There is no semaphore with the given name.
CONFORMING TO
POSIX.1-2001.
SEE ALSO sem_getvalue(3), sem_open(3), sem_post(3), sem_wait(3), sem_overview(7)COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2012-05-13 SEM_UNLINK(3)
Hi friends I'm doing a project and in that I need to use kernel semaphore but I'm not very clear about how to use it. I've used system V semaphore.
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I have one process which creates semaphore with permission 600. Then at some part of the code I have line where this semaphore will be removed. Problem I have is that other processes in my program also try to execute this line of code. Of course since they dont have permission they wont be able to... (1 Reply)
Can Someone help me what does the following error mean?
ERR: 17-Oct-11 15:07:44: File etlDataLoad.c Line 1069: 895, A fatal error has occured. Posting semaphore information
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Discussion started by: bobby1015
1 Replies
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Hello,
Why close my ask "How to implement a semaphore with pedestrian pushbutton" i'm autodidact, so i don't understand why you dedice close it.
I put the ask about Java (the language what i'm learning in spanish forum becouse my english is not good) but some body told me that this is the... (1 Reply)