Mercurial > hg > vamp-website

view code-doc/plugguard_8h.html @ 128:817c3988afc7 website tip

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Add a page about the Vamp Plugin Pack, including links to download mirrors
author Chris Cannam
date Tue, 11 Aug 2020 16:41:11 +0100
parents 8260c0f4e05b
children
line wrap: on
line source
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<title>VampPluginSDK: plugguard.h File Reference</title>

<link href="tabs.css" rel="stylesheet" type="text/css"/>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<script type="text/javascript">
  $(document).ready(initResizable);
</script>


</head>
<body>
<div id="top"><!-- do not remove this div! -->


<div id="titlearea">
<table cellspacing="0" cellpadding="0">
 <tbody>
 <tr style="height: 56px;">
  
  
  <td style="padding-left: 0.5em;">
   <div id="projectname">VampPluginSDK
   &#160;<span id="projectnumber">2.1</span>
   </div>
   
  </td>
  
  
  
 </tr>
 </tbody>
</table>
</div>

<!-- Generated by Doxygen 1.7.5.1 -->
  <div id="navrow1" class="tabs">
    <ul class="tablist">
      <li><a href="index.html"><span>Main&#160;Page</span></a></li>
      <li><a href="namespaces.html"><span>Namespaces</span></a></li>
      <li><a href="annotated.html"><span>Classes</span></a></li>
      <li class="current"><a href="files.html"><span>Files</span></a></li>
      <li><a href="dirs.html"><span>Directories</span></a></li>
    </ul>
  </div>
  <div id="navrow2" class="tabs2">
    <ul class="tablist">
      <li><a href="files.html"><span>File&#160;List</span></a></li>
      <li><a href="globals.html"><span>File&#160;Members</span></a></li>
    </ul>
  </div>
</div>
<div id="side-nav" class="ui-resizable side-nav-resizable">
  <div id="nav-tree">
    <div id="nav-tree-contents">
    </div>
  </div>
  <div id="splitbar" style="-moz-user-select:none;" 
       class="ui-resizable-handle">
  </div>
</div>
<script type="text/javascript">
  initNavTree('plugguard_8h.html','');
</script>
<div id="doc-content">
<div class="header">
  <div class="summary">
<a href="#define-members">Defines</a>  </div>
  <div class="headertitle">
<div class="title">plugguard.h File Reference</div>  </div>
</div>
<div class="contents">

<p><a href="plugguard_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="define-members"></a>
Defines</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="plugguard_8h.html#a3bf4e97f131677e5e1505a7a9582d68a">_VAMP_IN_PLUGINSDK</a>&#160;&#160;&#160;1</td></tr>
<tr><td class="mdescLeft">&#160;</td><td class="mdescRight">Normal usage should be:  <a href="#a3bf4e97f131677e5e1505a7a9582d68a"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="plugguard_8h.html#a1a2724ea453971288d3218e4eab3072c">_VAMP_SDK_PLUGSPACE_BEGIN</a>(h)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="plugguard_8h.html#ac879bb1077ecc6132ea3581ef9033753">_VAMP_SDK_PLUGSPACE_END</a>(h)</td></tr>
</table>
<hr/><h2>Define Documentation</h2>
<a class="anchor" id="a3bf4e97f131677e5e1505a7a9582d68a"></a><!-- doxytag: member="plugguard.h::_VAMP_IN_PLUGINSDK" ref="a3bf4e97f131677e5e1505a7a9582d68a" args="" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define _VAMP_IN_PLUGINSDK&#160;&#160;&#160;1</td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>Normal usage should be: </p>
<ul>
<li>Plugins include <a class="el" href="vamp-sdk_2Plugin_8h.html">vamp-sdk/Plugin.h</a> or <a class="el" href="vamp-sdk_2PluginBase_8h.html">vamp-sdk/PluginBase.h</a>. These files include this header, which specifies an appropriate namespace for the plugin classes to avoid any risk of conflict with non-plugin class implementations in the host on load.</li>
</ul>
<ul>
<li>Hosts include <a class="el" href="vamp-hostsdk_2Plugin_8h.html">vamp-hostsdk/Plugin.h</a>, <a class="el" href="vamp-hostsdk_2PluginBase_8h.html">vamp-hostsdk/PluginBase.h</a>, vamp-hostsdk/PluginHostAdapter, <a class="el" href="PluginLoader_8h.html">vamp-hostsdk/PluginLoader.h</a> etc. These files include <a class="el" href="hostguard_8h.html">vamp-hostsdk/hostguard.h</a>, which makes a note that we are in a host. A file such as <a class="el" href="vamp-hostsdk_2Plugin_8h.html">vamp-hostsdk/Plugin.h</a> then simply includes <a class="el" href="vamp-sdk_2Plugin_8h.html">vamp-sdk/Plugin.h</a>, and this guard header takes notice of the fact that it has been included from a host and leaves the plugin namespace unset.</li>
</ul>
<p>Problems will occur when a host includes files directly from the vamp-sdk directory. There are two reasons this might happen: mistake, perhaps owing to ignorance of the fact that this isn't allowed (particularly since it was the normal mechanism in v1 of the SDK); and a wish to incorporate plugin code directly into the host rather than having to load it.</p>
<p>What if the host does include a vamp-sdk header by mistake? We can catch it if it's included before something from vamp-hostsdk. If it's included after something from vamp-hostsdk, it will work OK anyway. The remaining problem case is where nothing from vamp-hostsdk is included in the same file. We can't catch that. </p>

<p>Definition at line <a class="el" href="plugguard_8h_source.html#l00072">72</a> of file <a class="el" href="plugguard_8h_source.html">plugguard.h</a>.</p>

</div>
</div>
<a class="anchor" id="a1a2724ea453971288d3218e4eab3072c"></a><!-- doxytag: member="plugguard.h::_VAMP_SDK_PLUGSPACE_BEGIN" ref="a1a2724ea453971288d3218e4eab3072c" args="(h)" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define _VAMP_SDK_PLUGSPACE_BEGIN</td>
          <td>(</td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">h</td><td>)</td>
          <td></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>Definition at line <a class="el" href="plugguard_8h_source.html#l00075">75</a> of file <a class="el" href="plugguard_8h_source.html">plugguard.h</a>.</p>

</div>
</div>
<a class="anchor" id="ac879bb1077ecc6132ea3581ef9033753"></a><!-- doxytag: member="plugguard.h::_VAMP_SDK_PLUGSPACE_END" ref="ac879bb1077ecc6132ea3581ef9033753" args="(h)" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define _VAMP_SDK_PLUGSPACE_END</td>
          <td>(</td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">h</td><td>)</td>
          <td></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>Definition at line <a class="el" href="plugguard_8h_source.html#l00076">76</a> of file <a class="el" href="plugguard_8h_source.html">plugguard.h</a>.</p>

</div>
</div>
</div>
</div>
  <div id="nav-path" class="navpath">
    <ul>
      <li class="navelem"><a class="el" href="plugguard_8h.html">plugguard.h</a>      </li>

    <li class="footer">Generated on Tue Oct 4 2011 14:38:49 for VampPluginSDK by
    <a href="http://www.doxygen.org/index.html">
    <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.5.1 </li>
   </ul>
 </div>


</body>
</html>