pthreadlib.html

来自「Vxworks API操作系统和驱动程序设计API。压缩的HTML文件」· HTML 代码 · 共 1,229 行 · 第 1/5 页

</blockquote><h4>SEE ALSO</h4><blockquote><p>
<b><a href="./pthreadLib.html#top">pthreadLib</a></b>, <b><a href="./sigLib.html#kill">kill</a>(&nbsp;)</b>, <b><a href="./pthreadLib.html#pthread_sigmask">pthread_sigmask</a>(&nbsp;)</b>, <b><a href="./sigLib.html#sigprocmask">sigprocmask</a>(&nbsp;)</b>, <b><a href="./sigLib.html#sigaction">sigaction</a>(&nbsp;)</b>,  
<b><a href="./sigLib.html#sigsuspend">sigsuspend</a>(&nbsp;)</b>, <b><a href="./sigLib.html#sigwait">sigwait</a>(&nbsp;)</b>

<hr>
<a name="pthread_mutexattr_init"></a>
<p align=right>
<a href="rtnIndex.htm"><i>OS Libraries :  Routines</i></a></p>

</blockquote><h1>pthread_mutexattr_init(&nbsp;)</h1> <blockquote></a></blockquote><h4>NAME</h4><blockquote>  
<p><strong>pthread_mutexattr_init(&nbsp;)</strong> - initialize mutex attributes object (POSIX)</p>

</blockquote><h4>SYNOPSIS</h4><blockquote><p>
<pre>int pthread_mutexattr_init
    (
    pthread_mutexattr_t * pAttr /* mutex attributes */
    )
</pre>

</blockquote><h4>DESCRIPTION</h4><blockquote><p>
This routine initializes the mutex attribute object <i>pAttr</i> and fills it
with  default values for the attributes as defined by the POSIX
specification.
<p>
</blockquote><h4>RETURNS</h4><blockquote><p>
On success zero; on failure a non-zero error code.
<p>
</blockquote><h4>ERRNOS</h4><blockquote><p>
<b>EINVAL</b>
<p>
</blockquote><h4>SEE ALSO</h4><blockquote><p>
<b><a href="./pthreadLib.html#top">pthreadLib</a></b>, <b><a href="./pthreadLib.html#pthread_mutexattr_destroy">pthread_mutexattr_destroy</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_getprioceiling">pthread_mutexattr_getprioceiling</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_getprotocol">pthread_mutexattr_getprotocol</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_setprioceiling">pthread_mutexattr_setprioceiling</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_setprotocol">pthread_mutexattr_setprotocol</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutex_init">pthread_mutex_init</a>(&nbsp;)</b>

<hr>
<a name="pthread_mutexattr_destroy"></a>
<p align=right>
<a href="rtnIndex.htm"><i>OS Libraries :  Routines</i></a></p>

</blockquote><h1>pthread_mutexattr_destroy(&nbsp;)</h1> <blockquote></a></blockquote><h4>NAME</h4><blockquote>  
<p><strong>pthread_mutexattr_destroy(&nbsp;)</strong> - destroy mutex attributes object (POSIX)</p>

</blockquote><h4>SYNOPSIS</h4><blockquote><p>
<pre>int pthread_mutexattr_destroy
    (
    pthread_mutexattr_t * pAttr /* mutex attributes */
    )
</pre>

</blockquote><h4>DESCRIPTION</h4><blockquote><p>
This routine destroys a mutex attribute object. The mutex attribute object
must not be reused until it is reinitialized.
<p>
</blockquote><h4>RETURNS</h4><blockquote><p>
On success zero; on failure a non-zero error code.
<p>
</blockquote><h4>ERRNOS</h4><blockquote><p>
<b>EINVAL</b>
<p>
</blockquote><h4>SEE ALSO</h4><blockquote><p>
<b><a href="./pthreadLib.html#top">pthreadLib</a></b>, <b><a href="./pthreadLib.html#pthread_mutexattr_getprioceiling">pthread_mutexattr_getprioceiling</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_getprotocol">pthread_mutexattr_getprotocol</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_init">pthread_mutexattr_init</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_setprioceiling">pthread_mutexattr_setprioceiling</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_setprotocol">pthread_mutexattr_setprotocol</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutex_init">pthread_mutex_init</a>(&nbsp;)</b>

<hr>
<a name="pthread_mutexattr_setprotocol"></a>
<p align=right>
<a href="rtnIndex.htm"><i>OS Libraries :  Routines</i></a></p>

</blockquote><h1>pthread_mutexattr_setprotocol(&nbsp;)</h1> <blockquote></a></blockquote><h4>NAME</h4><blockquote>  
<p><strong>pthread_mutexattr_setprotocol(&nbsp;)</strong> - set protocol attribute in mutex attribut object (POSIX)</p>

</blockquote><h4>SYNOPSIS</h4><blockquote><p>
<pre>int pthread_mutexattr_setprotocol
    (
    pthread_mutexattr_t * pAttr,   /* mutex attributes */
    int                   protocol /* new protocol */
    )
</pre>

</blockquote><h4>DESCRIPTION</h4><blockquote><p>
This function selects the locking protocol to be used when a mutex is created
using this attributes object. The protocol to be selected is either
<b>PTHREAD_PRIO_INHERIT</b> or <b>PTHREAD_PRIO_PROTECT</b>.
<p>
</blockquote><h4>RETURNS</h4><blockquote><p>
On success zero; on failure a non-zero error code.
<p>
</blockquote><h4>ERRNOS</h4><blockquote><p>
<b>EINVAL</b>, <b>ENOTSUP</b>
<p>
</blockquote><h4>SEE ALSO</h4><blockquote><p>
<b><a href="./pthreadLib.html#top">pthreadLib</a></b>, <b><a href="./pthreadLib.html#pthread_mutexattr_destroy">pthread_mutexattr_destroy</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_getprioceiling">pthread_mutexattr_getprioceiling</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_getprotocol">pthread_mutexattr_getprotocol</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_init">pthread_mutexattr_init</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_setprioceiling">pthread_mutexattr_setprioceiling</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutex_init">pthread_mutex_init</a>(&nbsp;)</b>

<hr>
<a name="pthread_mutexattr_getprotocol"></a>
<p align=right>
<a href="rtnIndex.htm"><i>OS Libraries :  Routines</i></a></p>

</blockquote><h1>pthread_mutexattr_getprotocol(&nbsp;)</h1> <blockquote></a></blockquote><h4>NAME</h4><blockquote>  
<p><strong>pthread_mutexattr_getprotocol(&nbsp;)</strong> - get value of protocol in mutex attributes object (POSIX)</p>

</blockquote><h4>SYNOPSIS</h4><blockquote><p>
<pre>int pthread_mutexattr_getprotocol
    (
    pthread_mutexattr_t * pAttr,    /* mutex attributes */
    int *                 pProtocol /* current protocol (out) */
    )
</pre>

</blockquote><h4>DESCRIPTION</h4><blockquote><p>
This function gets the current value of the protocol attribute in a mutex
attributes object.
<p>
</blockquote><h4>RETURNS</h4><blockquote><p>
On success zero; on failure a non-zero error code.
<p>
</blockquote><h4>ERRNOS</h4><blockquote><p>
<b>EINVAL</b>
<p>
</blockquote><h4>SEE ALSO</h4><blockquote><p>
<b><a href="./pthreadLib.html#top">pthreadLib</a></b>, <b><a href="./pthreadLib.html#pthread_mutexattr_destroy">pthread_mutexattr_destroy</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_getprioceiling">pthread_mutexattr_getprioceiling</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_init">pthread_mutexattr_init</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_setprioceiling">pthread_mutexattr_setprioceiling</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_setprotocol">pthread_mutexattr_setprotocol</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutex_init">pthread_mutex_init</a>(&nbsp;)</b>

<hr>
<a name="pthread_mutexattr_setprioceiling"></a>
<p align=right>
<a href="rtnIndex.htm"><i>OS Libraries :  Routines</i></a></p>

</blockquote><h1>pthread_mutexattr_setprioceiling(&nbsp;)</h1> <blockquote></a></blockquote><h4>NAME</h4><blockquote>  
<p><strong>pthread_mutexattr_setprioceiling(&nbsp;)</strong> - set prioceiling attribute in mutex attributes object (POSIX)</p>

</blockquote><h4>SYNOPSIS</h4><blockquote><p>
<pre>int pthread_mutexattr_setprioceiling
    (
    pthread_mutexattr_t * pAttr,      /* mutex attributes */
    int                   prioceiling /* new priority ceiling */
    )
</pre>

</blockquote><h4>DESCRIPTION</h4><blockquote><p>
This function sets the value of the prioceiling attribute in a mutex
attributes object. Unless the protocol attribute is set to
<b>PTHREAD_PRIO_PROTECT</b>, this attribute is ignored.
<p>
</blockquote><h4>RETURNS</h4><blockquote><p>
On success zero; on failure a non-zero error code.
<p>
</blockquote><h4>ERRNOS</h4><blockquote><p>
<b>EINVAL</b>
<p>
</blockquote><h4>SEE ALSO</h4><blockquote><p>
<b><a href="./pthreadLib.html#top">pthreadLib</a></b>, <b><a href="./pthreadLib.html#pthread_mutexattr_destroy">pthread_mutexattr_destroy</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_getprioceiling">pthread_mutexattr_getprioceiling</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_getprotocol">pthread_mutexattr_getprotocol</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_init">pthread_mutexattr_init</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_setprotocol">pthread_mutexattr_setprotocol</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutex_init">pthread_mutex_init</a>(&nbsp;)</b>

<hr>
<a name="pthread_mutexattr_getprioceiling"></a>
<p align=right>
<a href="rtnIndex.htm"><i>OS Libraries :  Routines</i></a></p>

</blockquote><h1>pthread_mutexattr_getprioceiling(&nbsp;)</h1> <blockquote></a></blockquote><h4>NAME</h4><blockquote>  
<p><strong>pthread_mutexattr_getprioceiling(&nbsp;)</strong> - get the current value of the prioceiling attribute in a mutex attributes object (POSIX)</p>

</blockquote><h4>SYNOPSIS</h4><blockquote><p>
<pre>int pthread_mutexattr_getprioceiling
    (
    pthread_mutexattr_t * pAttr,       /* mutex attributes */
    int *                 pPrioceiling /* current priority ceiling (out) */
    )
</pre>

</blockquote><h4>DESCRIPTION</h4><blockquote><p>
This function gets the current value of the prioceiling attribute in a mutex
attributes object. Unless the value of the protocol attribute is
<b>PTHREAD_PRIO_PROTECT</b>, this value is ignored.
<p>
</blockquote><h4>RETURNS</h4><blockquote><p>
On success zero; on failure a non-zero error code.
<p>
</blockquote><h4>ERRNOS</h4><blockquote><p>
<b>EINVAL</b>
<p>
</blockquote><h4>SEE ALSO</h4><blockquote><p>
<b><a href="./pthreadLib.html#top">pthreadLib</a></b>, <b><a href="./pthreadLib.html#pthread_mutexattr_destroy">pthread_mutexattr_destroy</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_getprotocol">pthread_mutexattr_getprotocol</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_init">pthread_mutexattr_init</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_setprioceiling">pthread_mutexattr_setprioceiling</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_setprotocol">pthread_mutexattr_setprotocol</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutex_init">pthread_mutex_init</a>(&nbsp;)</b>

<hr>
<a name="pthread_mutex_getprioceiling"></a>
<p align=right>
<a href="rtnIndex.htm"><i>OS Libraries :  Routines</i></a></p>

</blockquote><h1>pthread_mutex_getprioceiling(&nbsp;)</h1> <blockquote></a></blockquote><h4>NAME</h4><blockquote>  
<p><strong>pthread_mutex_getprioceiling(&nbsp;)</strong> - get the value of the prioceiling attribute of a mutex (POSIX)</p>

</blockquote><h4>SYNOPSIS</h4><blockquote><p>
<pre>int pthread_mutex_getprioceiling
    (
    pthread_mutex_t * pMutex,      /* POSIX mutex */
    int *             pPrioceiling /* current priority ceiling (out) */
    )
</pre>

</blockquote><h4>DESCRIPTION</h4><blockquote><p>
This function gets the current value of the prioceiling attribute of a mutex.
Unless the mutex was created with a protocol attribute value of
<b>PTHREAD_PRIO_PROTECT</b>, this value is meaningless.
<p>
</blockquote><h4>RETURNS</h4><blockquote><p>
On success zero; on failure a non-zero error code.
<p>
</blockquote><h4>ERRNOS</h4><blockquote><p>
<b>EINVAL</b>
<p>
</blockquote><h4>SEE ALSO</h4><blockquote><p>
<b><a href="./pthreadLib.html#top">pthreadLib</a></b>, <b><a href="./pthreadLib.html#pthread_mutex_setprioceiling">pthread_mutex_setprioceiling</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_getprioceiling">pthread_mutexattr_getprioceiling</a>(&nbsp;)</b>,  
<b><a href="./pthreadLib.html#pthread_mutexattr_setprioceiling">pthread_mutexattr_setprioceiling</a>(&nbsp;)</b>

<hr>
<a name="pthread_mutex_setprioceiling"></a>
<p align=right>
<a href="rtnIndex.htm"><i>OS Libraries :  Routines</i></a></p>