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{\rtf0\ansi\paperw16228 \paperh18648 \margl-907 \margr0 \margt0 \margb0 {\fonttbl\f0\fswiss Helvetica;\f1\froman Times;\f2\fmodern Courier;\f3\ftech Symbol;\f4\froman Palatino;} {\stylesheet{\s0 \li100 \fi0 \ri1007 \ql 1Head;} {\s1 \li100 \fi0 \ri1007 \ql ClassName;} {\s2 \li2872 \fi-2771 \ri1007 \ql \tx2872 ConformsTo;} {\s3 \li2872 \fi-2771 \ri1007 \ql DeclaredIn;} {\s4 \li7029 \fi-6552 \ri1007 \ql \tx6652 \tx7030 Description;} {\s5 \li7030 \fi-5796 \ri1007 \ql DescriptionPart;} {\s6 \li0 \fi0 \ri0 \ql \tx-25 \tx8290 \tx9172 Footer;} {\s7 \li2872 \fi-2771 \ri1007 \ql \tx2872 InheritsFrom;} {\s8 \li100 \fi0 \ri1007 \ql Summary;} } \li0 \fi0 \ri0 \ql \sb0 \f1 \fs24 (Preliminary Documentation) Copyright \f3 \'e3\f1 1994 by NeXT Computer, Inc. All Rights Reserved.\ \ \s0 \li100 \fi0 \ri1007 \ql \f0 \b \fs36 \fs16 \ \ \ \ \ \ \ \fs36 NSRecursiveLock \ \pard \s7 \li2872 \fi-2771 \ri1007 \ql \tx2872 \f1 \b0 \fs28 \fs16 \ \ \ \fs28 \f0 \b \fs28 Inherits From: \b0 \fs28 \f1 NSObject \ \fs16 \ \fs28 \s2 \fs16 \fs28 \f0 \b \fs28 Conforms To: \b0 \fs28 \f1 NSCoding\ \fi0 NSLocking\ \fi0 NSObject \ \fs16 \ \fs28 \s3 \fi-2771 \fs16 \fs28 \f0 \b \fs28 Declared In: \b0 \fs28 \f1 foundation/NSLock.h \ \fs16 \ \fs28 \pard \s8 \li100 \fi0 \ri1007 \ql \f0 \b \fs28 \fs16 \ \ \fs28 Acquiring a Lock\ \fs16 \ \fs28 \pard \s4 \li7029 \fi-6552 \ri1007 \ql \tx6652 \tx7030 \f1 \b0 \fi-6552 {\f3 -} (BOOL)\b tryLock\b0 Attempts to acquire a lock. Returns YES if successful and NO otherwise. This method can be called repeatedly to produce nested locks.\ \fi-6552 \pard \s0 \li100 \fi0 \tx478 \tx856 \tx1234 \fs28 \fs16 \ \ \fs28 \ \fs16 \ \ \fs28 \ri1007 \fs16 \fs28 \ \fs16 \ \ \fs28 \fs16 \fs28 \ \fs16 \ \ \fs28 }