The OpenNET Project / Index page

[ новости /+++ | форум | теги | ]

Интерактивная система просмотра системных руководств (man-ов)

 ТемаНаборКатегория 
 
 [Cписок руководств | Печать]

pthread_spin_lock (3)
  • pthread_spin_lock (3) ( Solaris man: Библиотечные вызовы )
  • pthread_spin_lock (3) ( FreeBSD man: Библиотечные вызовы )
  • >> pthread_spin_lock (3) ( POSIX man: Библиотечные вызовы )
  •  

    NAME

    pthread_spin_lock, pthread_spin_trylock - lock a spin lock object
    (ADVANCED REALTIME THREADS)
     
    

    SYNOPSIS

    #include <pthread.h>

    int pthread_spin_lock(pthread_spinlock_t *lock);
    int pthread_spin_trylock(pthread_spinlock_t *
    lock);
     

    DESCRIPTION

    The pthread_spin_lock() function shall lock the spin lock referenced by lock. The calling thread shall acquire the lock if it is not held by another thread. Otherwise, the thread shall spin (that is, shall not return from the pthread_spin_lock() call) until the lock becomes available. The results are undefined if the calling thread holds the lock at the time the call is made. The pthread_spin_trylock() function shall lock the spin lock referenced by lock if it is not held by any thread. Otherwise, the function shall fail.

    The results are undefined if any of these functions is called with an uninitialized spin lock.  

    RETURN VALUE

    Upon successful completion, these functions shall return zero; otherwise, an error number shall be returned to indicate the error.  

    ERRORS

    These functions may fail if:

    EINVAL
    The value specified by lock does not refer to an initialized spin lock object.

    The pthread_spin_lock() function may fail if:

    EDEADLK
    The calling thread already holds the lock.

    The pthread_spin_trylock() function shall fail if:

    EBUSY
    A thread currently holds the lock.

    These functions shall not return an error code of [EINTR].

    The following sections are informative.  

    EXAMPLES

    None.  

    APPLICATION USAGE

    Applications using this function may be subject to priority inversion, as discussed in the Base Definitions volume of IEEE Std 1003.1-2001, Section 3.285, Priority Inversion.

    The pthread_spin_lock() and pthread_spin_trylock() functions are part of the Spin Locks option and need not be provided on all implementations.  

    RATIONALE

    None.  

    FUTURE DIRECTIONS

    None.  

    SEE ALSO

    pthread_spin_destroy() , pthread_spin_unlock() , the Base Definitions volume of IEEE Std 1003.1-2001, <pthread.h>  

    COPYRIGHT

    Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html .


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    RETURN VALUE
    ERRORS
    EXAMPLES
    APPLICATION USAGE
    RATIONALE
    FUTURE DIRECTIONS
    SEE ALSO
    COPYRIGHT


    Поиск по тексту MAN-ов: 




    Партнёры:
    PostgresPro
    Inferno Solutions
    Hosting by Hoster.ru
    Хостинг:

    Закладки на сайте
    Проследить за страницей
    Created 1996-2024 by Maxim Chirkov
    Добавить, Поддержать, Вебмастеру