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<span class="hidden">CLiki - trivial-package-locks</span>
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<div id="content"><div id="content-area"><div id="article-title">trivial-package-locks</div><div id="article">A standard interface to the various package lock implementations. <p>Currently supported implementations are ACL, CLISP, CMUCL, ECL and SBCL. On all other implementations the following functions are exported but will evaluate to a NOOP where appropriate.<p><h2>Package Locks Interface</h2><p>Implementations that support this interface will have the keyword <code>:package-locks</code> present in <code>*features*</code>.<p><div class="code"><span class="nonparen"><span class="paren1">(<span class="nonparen">package-locked-p &optional <span class="paren2">(<span class="nonparen"><a href="https://www.cliki.net/site/HyperSpec/Body/syscla_package.html" class="symbol">package</a> <a href="https://www.cliki.net/site/HyperSpec/Body/var_stpackagest.html" class="symbol"><span class="special">*package*</span></a></span>)</span></span>)</span> => lock-state
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<span class="paren1">(<span class="nonparen"><a href="https://www.cliki.net/site/HyperSpec/Body/any_setf.html" class="symbol">setf</a> <span class="paren2">(<span class="nonparen">package-locked-p &optional <span class="paren3">(<span class="nonparen"><a href="https://www.cliki.net/site/HyperSpec/Body/syscla_package.html" class="symbol">package</a> <a href="https://www.cliki.net/site/HyperSpec/Body/var_stpackagest.html" class="symbol"><span class="special">*package*</span></a></span>)</span></span>)</span> new-lock-state</span>)</span></span></div><p>Accesses the lock state of a package. <code>t</code> indicates that the package is locked and <code>nil</code> indicates that it is not locked.<p><div class="code"><span class="nonparen"><span class="paren1">(<span class="nonparen">without-package-locks &body body</span>)</span> =><span class="comment">; results</span></span></div><p>Disables the checking of package locks during the evaluation of <code>body</code>. For implementations that do not have the ability to disable all package locks via a dynamic variable <code>(list-all-packages)</code> will be used to unlock each package before the evaluation of <code>body</code> and then relock each package that was locked after the evaluation of <code>body</code>.<p><div class="code"><span class="nonparen"><span class="paren1">(<span class="nonparen"><i><span class="symbol">with-unlocked-packages</span></i> <span class="paren2">(<span class="nonparen">&rest packages</span>)</span> &body body</span>)</span> => results</span></div><p>Unlocks and relocks each of the named <code>packages</code> around the evaluation of <code>body</code>.<p><div class="code"><span class="nonparen"><span class="paren1">(<span class="nonparen"><i><span class="symbol">with-locked-packages</span></i> <span class="paren2">(<span class="nonparen">&rest packages</span>)</span> &body body</span>)</span> => results</span></div><p>Locks and then unlocks each of the named <code>packages</code> around the evaluation of <code>body</code>.<p><h2>Implementation Packages Interface</h2><p>Implementations that support this interface will have the keyword <code>:implementation-packages</code> present in <code>*features*</code>. Currently ACL and SBCL are the only implementations that support this interface.<p><div class="code"><span class="nonparen"><span class="paren1">(<span class="nonparen">package-implementation-packages <span class="paren2">(<span class="nonparen">&optional <span class="paren3">(<span class="nonparen"><a href="https://www.cliki.net/site/HyperSpec/Body/syscla_package.html" class="symbol">package</a> <a href="https://www.cliki.net/site/HyperSpec/Body/var_stpackagest.html" class="symbol"><span class="special">*package*</span></a></span>)</span></span>)</span> => packages
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<span class="paren2">(<span class="nonparen"><a href="https://www.cliki.net/site/HyperSpec/Body/any_setf.html" class="symbol">setf</a> <span class="paren3">(<span class="nonparen">package-implementation-packages &optional <span class="paren4">(<span class="nonparen"><a href="https://www.cliki.net/site/HyperSpec/Body/syscla_package.html" class="symbol">package</a> <a href="https://www.cliki.net/site/HyperSpec/Body/var_stpackagest.html" class="symbol"><span class="special">*package*</span></a></span>)</span></span>)</span> packages</span>)</span></span></span></span></div><p>Accesses the list of packages that are considered implementation packages of <code>package</code>.<p><div class="code"><span class="nonparen"><span class="paren1">(<span class="nonparen">package-implements-package-p <span class="paren2">(<span class="nonparen">implementation-package
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&optional <span class="paren3">(<span class="nonparen"><a href="https://www.cliki.net/site/HyperSpec/Body/syscla_package.html" class="symbol">package</a> <a href="https://www.cliki.net/site/HyperSpec/Body/var_stpackagest.html" class="symbol"><span class="special">*package*</span></a></span>)</span></span>)</span> => state
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<span class="paren2">(<span class="nonparen"><a href="https://www.cliki.net/site/HyperSpec/Body/any_setf.html" class="symbol">setf</a> <span class="paren3">(<span class="nonparen">package-implements-package-p implementation-package
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&optional <span class="paren4">(<span class="nonparen"><a href="https://www.cliki.net/site/HyperSpec/Body/syscla_package.html" class="symbol">package</a> <a href="https://www.cliki.net/site/HyperSpec/Body/var_stpackagest.html" class="symbol"><span class="special">*package*</span></a></span>)</span></span>)</span>
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new-state</span>)</span></span></span></span></div><p>Access the implementation state of an individual package.<p><hr><p>Repository: <a href="https://github.com/yitzchak/trivial-package-locks/">https://github.com/yitzchak/trivial-package-locks/</a><p>Author: <a href="https://github.com/yitzchak">Tarn W. Burton</a><p><hr>
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<a href="trivial.html" class="category">trivial</a>, <a href="MIT-LICENSE.html" class="category">MIT-LICENSE</a></div></div>
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