mirror of
https://github.com/sigmasternchen/php-doc-en
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8690c4193b
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@334136 c90b9560-bf6c-de11-be94-00142212c4b1
65 lines
2 KiB
XML
65 lines
2 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<book xml:id="book.sync" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
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<title>Sync</title>
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<titleabbrev>Sync</titleabbrev>
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<preface xml:id="intro.sync">
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&reftitle.intro;
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<para>
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The 'sync' extension introduces cross-platform synchonization objects into PHP.
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Named and unnamed Mutex, Semaphore, Event, and Reader-Writer objects provide
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OS-level synchronization on both POSIX (e.g. Linux) and Windows platforms.
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</para>
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<para>
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Automatic cleanup of acquired synchronization objects takes place during extension
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teardown. This means that if PHP prematurely terminates a script (e.g. script
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execution time is exceeded), objects will not be left in an unknown state. The
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only exception to this is if PHP itself crashes (e.g. an internal buffer overflow).
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</para>
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<para>
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Unnamed synchronization objects don't have a lot of use outside of a multithreaded
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scenario. Unnamed objects are more useful in conjunction with the pthreads PECL
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extension.
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</para>
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<note>
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<para>
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Named objects require additional care to be used on all systems.
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If an object is instantiated with a specific set of parameters, it must always
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be instantiated with those parameters or the object will probably end up in an
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inconsistent state until the next reboot or a system administrator cleans up
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the mess.
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</para>
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</note>
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</preface>
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&reference.sync.setup;
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&reference.sync.constants;
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&reference.sync.syncmutex;
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&reference.sync.syncsemaphore;
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&reference.sync.syncevent;
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&reference.sync.syncreaderwriter;
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</book>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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