128 lines
4.9 KiB
HTML
128 lines
4.9 KiB
HTML
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<!-- keywords: SQLITE_MUTEX_FAST SQLITE_MUTEX_RECURSIVE SQLITE_MUTEX_STATIC_APP1 SQLITE_MUTEX_STATIC_APP2 SQLITE_MUTEX_STATIC_APP3 SQLITE_MUTEX_STATIC_LRU SQLITE_MUTEX_STATIC_LRU2 SQLITE_MUTEX_STATIC_MAIN SQLITE_MUTEX_STATIC_MEM SQLITE_MUTEX_STATIC_MEM2 SQLITE_MUTEX_STATIC_OPEN SQLITE_MUTEX_STATIC_PMEM SQLITE_MUTEX_STATIC_PRNG SQLITE_MUTEX_STATIC_VFS1 SQLITE_MUTEX_STATIC_VFS2 SQLITE_MUTEX_STATIC_VFS3 -->
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<a href="intro.html"><h2>SQLite C Interface</h2></a>
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<h2>Mutex Types</h2>
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</div>
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<blockquote><pre>
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#define SQLITE_MUTEX_FAST 0
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#define SQLITE_MUTEX_RECURSIVE 1
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#define SQLITE_MUTEX_STATIC_MAIN 2
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#define SQLITE_MUTEX_STATIC_MEM 3 /* sqlite3_malloc() */
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#define SQLITE_MUTEX_STATIC_MEM2 4 /* NOT USED */
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#define SQLITE_MUTEX_STATIC_OPEN 4 /* sqlite3BtreeOpen() */
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#define SQLITE_MUTEX_STATIC_PRNG 5 /* sqlite3_randomness() */
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#define SQLITE_MUTEX_STATIC_LRU 6 /* lru page list */
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#define SQLITE_MUTEX_STATIC_LRU2 7 /* NOT USED */
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#define SQLITE_MUTEX_STATIC_PMEM 7 /* sqlite3PageMalloc() */
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#define SQLITE_MUTEX_STATIC_APP1 8 /* For use by application */
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#define SQLITE_MUTEX_STATIC_APP2 9 /* For use by application */
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#define SQLITE_MUTEX_STATIC_APP3 10 /* For use by application */
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#define SQLITE_MUTEX_STATIC_VFS1 11 /* For use by built-in VFS */
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#define SQLITE_MUTEX_STATIC_VFS2 12 /* For use by extension VFS */
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#define SQLITE_MUTEX_STATIC_VFS3 13 /* For use by application VFS */
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</pre></blockquote>
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<p>
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The <a href="../c3ref/mutex_alloc.html">sqlite3_mutex_alloc()</a> interface takes a single argument
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which is one of these integer constants.</p>
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<p>The set of static mutexes may change from one SQLite release to the
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next. Applications that override the built-in mutex logic must be
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prepared to accommodate additional static mutexes.
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</p><p>See also lists of
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<a href="objlist.html">Objects</a>,
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<a href="constlist.html">Constants</a>, and
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<a href="funclist.html">Functions</a>.</p>
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