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145 строки
3.9 KiB
HTML
145 строки
3.9 KiB
HTML
<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<meta name="Author" content="Suresh Duddi">
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<meta name="GENERATOR" content="Mozilla/4.71 [en] (X11; U; Linux 2.2.12-20 i686) [Netscape]">
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</head>
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<body>
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<center>
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<h2>
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Standalone XPCOM v 0.5</h2></center>
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<center>Version 0.5
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<br>15 May 2000
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<br>Suresh Duddi <dp@netscape.com>
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<hr WIDTH="100%"></center>
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<h3>
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1.0 Overview</h3>
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Standalone XPCOM is a tree configuration, that when built, provides a minimal
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set of libraries (shared mostly) that can be used to get all features of
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XPCOM. The contents of this standalone XPCOM in general are:
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<ul>
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<li>
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NSPR : mozilla/nsprpub</li>
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<li>
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Registry : mozilla/modules/libreg</li>
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<li>
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XPCOM : mozilla/xpcom</li>
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</ul>
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<b>NOTE 1: xpcom apis are not frozen yet. By XPCOM 1.0 release they will
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be.</b>
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<br><b>NOTE 2: xpcom standalone differs from the xpcom built with mozilla.
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Hence cannot be used with the mozilla browser.</b>
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<h3>
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2.0 Building Standalone XPCOM</h3>
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Here are the instructions for building the Standalone XPCOM on Unix or Windows:
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<br>
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<ol><b>Step 1 : Pull the sources</b>
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<li>
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<tt>cvs -z 3 co mozilla/client.mk</tt></li>
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<li>
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<tt>cd mozilla</tt></li>
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<li>
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<tt>gmake -f client.mk pull_all BUILD_MODULES=xpcom</tt></li>
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</ol>
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<ol><b>Step 2 : Build XPCOM Standalone (unix)</b>
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<li>
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<tt>configure --enable-modules=xpcom</tt></li>
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<li>
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<tt>gmake</tt></li>
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</ol>
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<i>Thanks to Christopher Seawood <cls@seawood.org> for make this so
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simple.</i>
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<h3>
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3.0 Testing Standalone XPCOM</h3>
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<tt>xpcom/sample</tt> contains a sample application and a component. This
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should get built by default.
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<ul>
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<li>
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<tt>nsTestSample</tt> is the sample application. This should have been
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installed in your <tt>bin/</tt> directory.</li>
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<li>
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<tt>libsample.so (unix) </tt>is the sample component implementation that
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the sample application will try to instantiate. This should have been installed
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in your <tt>bin/components</tt> directory</li>
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</ul>
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To run the test,
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<ol>
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<li>
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cd to your <tt>bin/</tt> directory</li>
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<li>
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setenv LD_LIBRARY_PATH .</li>
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<li>
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<tt>./nsTestSample</tt></li>
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<br><tt>Warning: MOZILLA_FIVE_HOME not set.</tt>
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<br><tt>nsNativeComponentLoader: autoregistering begins.</tt>
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<br><tt>nsNativeComponentLoader: autoregistering succeeded</tt>
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<br><tt>Inital print: initial value</tt>
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<br><tt>Set value to: XPCOM defies gravity</tt>
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<br><tt>Final print : XPCOM defies gravity</tt>
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<br><b><tt>Test passed.</tt></b></ol>
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<h3>
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4.0 Test FAILED: What went wrong ?</h3>
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The most common case of why the sample would have failed if you didn't
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run it from the bin directory. Here are some error messsages and possible
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ways of fixing them.
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<ol>
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<li>
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<b><tt>./nsTestSample: error in loading shared libraries: libxpcom.so:
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cannot open shared object file: No such file or directory</tt></b></li>
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<ol>LD_LIBRARY_PATH not set. To fix "<tt>setenv LD_LIBRARY_PATH ."</tt></ol>
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<li>
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<b>Link errors when building xpcom standalone</b></li>
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<ol>This is mostly due to the fact that probably xpcom is not being built
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standalone. Make sure you did "<tt>configure --enable-modules=xpcom"</tt></ol>
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</ol>
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<h3>
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5.0 Whats the difference between Standalone and non-Standalone XPCOM</h3>
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There is no binary difference between standalone XPCOM and the XPCOM that ships with the Mozilla browser. The one functional difference is that XPT files cannot be read from .zip files in standalone XPCOM.
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<h3>
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6.0 TODO for v 1.0</h3>
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<ol>
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<li>
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Optional exclusion of specific features into standalone XPCOM like
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registry, xpconnect. Tweeking these options will cause reduction
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in memory requirements and size.</li>
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<li>
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Get <tt>xpcom/tests</tt> directory upto date and documented.</li>
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<li>
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Update this document for Mac.</li>
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<li>
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API freeze and documentation</li>
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</ol>
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<h3>
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7.0 Future (post v 1.0)</h3>
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mmh! let me think...
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<p>
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<hr WIDTH="100%">
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<br>Suresh Duddi <dp@netscape.com>
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</body>
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</html>
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