Re: Please test new NSLock implementation!

[SPUeNTRUP - Kai Henningsen]

Hallo Fred,

Am Fri, 04 Sep 2009 23:37:03 +0200
schrieb Fred Kiefer <fredkiefer@gmx.de>:

> But if there isn't any chance that I can convince to to take back the
> binary incompatible change you made (but who would ever subclass
> NSLock?), by adding a bit more code to the NSLock.m file, I rather give
> up here.

Umm ... I certainly have subclassed NSLock (well, actually
NSRecursiveLock). The purpose here was adding debug code.

Just for illustration ...

extern BOOL fastlocks;
extern BOOL tracelocks;

@interface Lock:NSRecursiveLock
{
        BOOL    traceme;
        int     lock_count;
        NSString        *descr;
        ThreadVars      *owner;
        unsigned        last_owner;
        Lock    *next_held_lock;
        Lock    *prev_held_lock;
}
-(void)desc: (const char *)fi : (int)li : (const char *)fu: (const char *)var;
-(void)lock: (const char *)fi : (int)li : (const char *)fu;
-(void)unlock: (const char *)fi : (int)li : (const char *)fu;
-(void)trace;
-(ThreadVars*)owner;
@end

#define NEWLOCK(lk) do { ASSIGN(lk, AUTONEW(Lock)); [lk desc: __FILE__ : 
__LINE__ : __PRETTY_FUNCTION__: #lk]; } while (0)
#define LOCK(lk) [lk lock: __FILE__ : __LINE__ : __PRETTY_FUNCTION__]
#define UNLOCK(lk) [lk unlock: __FILE__ : __LINE__ : __PRETTY_FUNCTION__]

Not that it matters in this context - we have no expectation of running
the executable with any version of the library other that the one it
was compiled against.

Mit freundlichen Grüßen aus Münster /
with kind regards - Kai Henningsen

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