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vxworks相关论文

This function calls destructors for all of the static objects linked
with a VxWorks bootable image.  When creating bootable applications,
this function should be called during system shutdown to decommission
all static objects.  Correct operation depends on correctly munching
the C++ modules that are linked with VxWorks.
<p>
</blockquote><h4>RETURNS</h4><blockquote><p>
N/A
</blockquote><h4>SEE ALSO</h4><blockquote><p>
<b><a href="./cplusLib.html#top">cplusLib</a></b>

<hr>
<a name="cplusLibInit"></a>
<p align=right>
<a href="rtnIndex.html"><i>Libraries :  Routines</i></a></p>

</blockquote><h1><i>cplusLibInit</i>(&nbsp;)</h1> <blockquote></a></blockquote><h4>NAME</h4><blockquote>  
<p><strong><i>cplusLibInit</i>(&nbsp;)</strong> - initialize the C++ library (C++)</p>

</blockquote><h4>SYNOPSIS</h4><blockquote><p>
<pre>

extern "C" STATUS cplusLibInit (void)</pre>

</blockquote><h4>DESCRIPTION</h4><blockquote><p>
This routine initializes the C++ library and forces all C++ run-time support
to be linked with the bootable VxWorks image.  If the configuration
macro <b>INCLUDE_CPLUS</b> is defined,
<b><i><a href="./cplusLib.html#cplusLibInit">cplusLibInit</a></i>(&nbsp;)</b> is called automatically from the root task,
<b><i><a href="./usrConfig.html#usrRoot">usrRoot</a></i>(&nbsp;)</b>, in <b>usrConfig.c</b>.
<p>
</blockquote><h4>RETURNS</h4><blockquote><p>
OK or ERROR.
</blockquote><h4>SEE ALSO</h4><blockquote><p>
<b><a href="./cplusLib.html#top">cplusLib</a></b>

<hr>
<a name="cplusXtorSet"></a>
<p align=right>
<a href="rtnIndex.html"><i>Libraries :  Routines</i></a></p>

</blockquote><h1><i>cplusXtorSet</i>(&nbsp;)</h1> <blockquote></a></blockquote><h4>NAME</h4><blockquote>  
<p><strong><i>cplusXtorSet</i>(&nbsp;)</strong> - change C++ static constructor calling strategy (C++)</p>

</blockquote><h4>SYNOPSIS</h4><blockquote><p>
<pre>extern "C" void cplusXtorSet
    (
    int strategy
    )</pre>

</blockquote><h4>DESCRIPTION</h4><blockquote><p>
This command sets the C++ static constructor calling strategy
to <i>strategy</i>.  The default strategy is 0.
<p>
There are two static constructor calling strategies: <i>automatic</i>
and <i>manual</i>.  These modes are represented by numeric codes:
<p>
<table>
<tr valign=top>
<th align=left>Strategy   </th><th align=left> Code</tr>
<tr><td colspan="2"><hr></tr>
<tr valign=top>
<td align=left>manual     </td><td align=left> 0</tr>
<tr valign=top>
<td align=left>automatic  </td><td align=left> 1</tr>
<tr valign=top>
<td align=left></tr>
</tr>

</table>

Under the manual strategy, a module's static constructors and
destructors are called by <b><i><a href="./cplusLib.html#cplusCtors">cplusCtors</a></i>(&nbsp;)</b> and <b><i><a href="./cplusLib.html#cplusDtors">cplusDtors</a></i>(&nbsp;)</b>, which are
themselves invoked manually.
<p>
Under the automatic strategy, a module's static constructors are
called as a side-effect of loading the module using the VxWorks module
loader.  A module's static destructors are called as a side-effect of
unloading the module.
<p>
</blockquote><h4>NOTE</h4><blockquote><p>
The manual strategy is applicable only to modules that are
loaded by the VxWorks module loader.  Static constructors and
destructors contained by modules linked with the VxWorks image
are called using <b><i><a href="./cplusLib.html#cplusCtorsLink">cplusCtorsLink</a></i>(&nbsp;)</b> and <b><i><a href="./cplusLib.html#cplusDtorsLink">cplusDtorsLink</a></i>(&nbsp;)</b>.
<p>
</blockquote><h4>RETURNS</h4><blockquote><p>
N/A
</blockquote><h4>SEE ALSO</h4><blockquote><p>
<b><a href="./cplusLib.html#top">cplusLib</a></b>

<hr>
<a name="operator delete"></a>
<p align=right>
<a href="rtnIndex.html"><i>Libraries :  Routines</i></a></p>

</blockquote><h1><i>operator delete</i>(&nbsp;)</h1> <blockquote></a></blockquote><h4>NAME</h4><blockquote>  
<p><strong><i>operator delete</i>(&nbsp;)</strong> - default run-time support for memory deallocation (C++)</p>

</blockquote><h4>SYNOPSIS</h4><blockquote><p>
<pre>extern void operator delete
    (
    void * pMem /* pointer to dynamically-allocated object */
    )</pre>

</blockquote><h4>DESCRIPTION</h4><blockquote><p>
This function provides the default implementation of operator delete.
It returns the memory, previously allocated by operator new, to the
VxWorks system memory partition.
<p>
</blockquote><h4>RETURNS</h4><blockquote><p>
N/A
</blockquote><h4>SEE ALSO</h4><blockquote><p>
<b><a href="./cplusLib.html#top">cplusLib</a></b>

<hr>
<a name="operator new"></a>
<p align=right>
<a href="rtnIndex.html"><i>Libraries :  Routines</i></a></p>

</blockquote><h1><i>operator new</i>(&nbsp;)</h1> <blockquote></a></blockquote><h4>NAME</h4><blockquote>  
<p><strong><i>operator new</i>(&nbsp;)</strong> - default run-time support for operator new (C++)</p>

</blockquote><h4>SYNOPSIS</h4><blockquote><p>
<pre>extern void * operator new
    (
    size_t n /* size of object to allocate */
    ) throw (std::bad_alloc)</pre>

</blockquote><h4>DESCRIPTION</h4><blockquote><p>
This function provides the default implementation of operator new.
It allocates memory from the system memory partition for the
requested object.  The value, when evaluated, is a pointer of the
type <b>pointer-to-</b><i>T</i> where <i>T</i> is the type of the new object.
<p>
If allocation fails a new-handler, if one is defined, is called.
If the new-handler returns, presumably after attempting to recover
from the memory allocation failure, allocation is retried.
If there is no new-handler an exception of type "bad_alloc" is
thrown.
<p>
</blockquote><h4>RETURNS</h4><blockquote><p>
<p>
Pointer to new object.
<p>
</blockquote><h4>THROWS</h4><blockquote><p>
<p>
std::bad_alloc if allocation failed.
</blockquote><h4>SEE ALSO</h4><blockquote><p>
<b><a href="./cplusLib.html#top">cplusLib</a></b>

<hr>
<a name="operator new_1"></a>
<p align=right>
<a href="rtnIndex.html"><i>Libraries :  Routines</i></a></p>

</blockquote><h1><i>operator new</i>(&nbsp;)</h1> <blockquote></a></blockquote><h4>NAME</h4><blockquote>  
<p><strong><i>operator new</i>(&nbsp;)</strong> - default run-time support for operator new (nothrow) (C++)</p>

</blockquote><h4>SYNOPSIS</h4><blockquote><p>
<pre>extern void * operator new
    (
    size_t          n, /* size of object to allocate */
    const nothrow_t &  /* supply argument of "nothrow" here */
    ) throw ()</pre>

</blockquote><h4>DESCRIPTION</h4><blockquote><p>
This function provides the default implementation of operator new (nothrow).
It allocates memory from the system memory partition for the
requested object.  The value, when evaluated, is a pointer of the
type <b>pointer-to-</b><i>T</i> where <i>T</i> is the type of the new object.
<p>
If allocation fails, a new-handler, if one is defined, is called.
If the new-handler returns, presumably after attempting to recover
from the memory allocation failure, allocation is retried.
If the new_handler throws a bad_alloc exception, the exception
is caught and 0 is returned. 
If allocation fails and there is no new_handler 0 is returned.
<p>
</blockquote><h4>RETURNS</h4><blockquote><p>
<p>
Pointer to new object or 0 if allocation fails.
<p>
</blockquote><h4>INCLUDE FILES</h4><blockquote><p>
<b>new</b>
</blockquote><h4>SEE ALSO</h4><blockquote><p>
<b><a href="./cplusLib.html#top">cplusLib</a></b>

<hr>
<a name="operator new_2"></a>
<p align=right>
<a href="rtnIndex.html"><i>Libraries :  Routines</i></a></p>

</blockquote><h1><i>operator new</i>(&nbsp;)</h1> <blockquote></a></blockquote><h4>NAME</h4><blockquote>  
<p><strong><i>operator new</i>(&nbsp;)</strong> - run-time support for operator new with placement (C++)</p>

</blockquote><h4>SYNOPSIS</h4><blockquote><p>
<pre>extern void * operator new
    (
    size_t n,   /* size of object to allocate (unused) */
    void * pMem /* pointer to allocated memory */
    )</pre>

</blockquote><h4>DESCRIPTION</h4><blockquote><p>
This function provides the default implementation of the global
new operator, with support for the placement syntax.
New-with-placement is used to initialize objects for which memory has
already been allocated. <i>pMem</i> points to the previously allocated memory.
memory.
<p>
</blockquote><h4>RETURNS</h4><blockquote><p>
<p>
<i>pMem</i>
<p>
</blockquote><h4>INCLUDE FILES</h4><blockquote><p>
<b>new</b>
</blockquote><h4>SEE ALSO</h4><blockquote><p>
<b><a href="./cplusLib.html#top">cplusLib</a></b>

<hr>
<a name="set_new_handler"></a>
<p align=right>
<a href="rtnIndex.html"><i>Libraries :  Routines</i></a></p>

</blockquote><h1><i>set_new_handler</i>(&nbsp;)</h1> <blockquote></a></blockquote><h4>NAME</h4><blockquote>  
<p><strong><i>set_new_handler</i>(&nbsp;)</strong> - set new_handler to user-defined function (C++)</p>

</blockquote><h4>SYNOPSIS</h4><blockquote><p>
<pre>

extern void (*set_new_handler (void(* pNewNewHandler)()))  ()
    </pre>

</blockquote><h4>DESCRIPTION</h4><blockquote><p>
This function is used to define the function that will be called
when operator new cannot allocate memory.
<p>
The new_handler acts for all threads in the system;
you cannot set a different handler for different tasks.
<p>
</blockquote><h4>RETURNS</h4><blockquote><p>
A pointer to the previous value of new_handler.
<p>
</blockquote><h4>INCLUDE FILES</h4><blockquote><p>
<b>new</b>
</blockquote><h4>SEE ALSO</h4><blockquote><p>
<b><a href="./cplusLib.html#top">cplusLib</a></b>

<hr>
<a name="set_terminate"></a>
<p align=right>
<a href="rtnIndex.html"><i>Libraries :  Routines</i></a></p>

</blockquote><h1><i>set_terminate</i>(&nbsp;)</h1> <blockquote></a></blockquote><h4>NAME</h4><blockquote>  
<p><strong><i>set_terminate</i>(&nbsp;)</strong> - set terminate to user-defined function (C++)</p>

</blockquote><h4>SYNOPSIS</h4><blockquote><p>
<pre>

extern void (*set_terminate (void(* terminate_handler)()))  ()
    </pre>

</blockquote><h4>DESCRIPTION</h4><blockquote><p>
This function is used to define the terminate_handler
which will be called when an uncaught exception is raised.
<p>
The terminate_handler acts for all threads in the system;
you cannot set a different handler for different tasks.
<p>
</blockquote><h4>RETURNS</h4><blockquote><p>
The previous terminate_handler.
<p>
</blockquote><h4>INCLUDE FILES</h4><blockquote><p>
<b>exception</b>
</blockquote><h4>SEE ALSO</h4><blockquote><p>
<b><a href="./cplusLib.html#top">cplusLib</a></b>

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