先删除不使用类

BFCommonKit/Classes/BFUtility/TPPreciseTimer.h

@@ -1,27 +0,0 @@
-//
-//  TPPreciseTimer.h
-//  Loopy
-//
-//  Created by Michael Tyson on 06/09/2011.
-//  Copyright 2011 A Tasty Pixel. All rights reserved.
-//
-
-#import <Foundation/Foundation.h>
-
-@interface TPPreciseTimer : NSObject {
-    double timebase_ratio;
-    
-    NSMutableArray *events;
-    NSCondition *condition;
-    pthread_t thread;
-}
-
-+ (void)scheduleAction:(SEL)action target:(id)target inTimeInterval:(NSTimeInterval)timeInterval;
-+ (void)scheduleAction:(SEL)action target:(id)target context:(id)context inTimeInterval:(NSTimeInterval)timeInterval;
-+ (void)cancelAction:(SEL)action target:(id)target;
-+ (void)cancelAction:(SEL)action target:(id)target context:(id)context;
-#if NS_BLOCKS_AVAILABLE
-+ (void)scheduleBlock:(void (^)(void))block inTimeInterval:(NSTimeInterval)timeInterval;
-#endif
-
-@end

BFCommonKit/Classes/BFUtility/TPPreciseTimer.m

@@ -1,212 +0,0 @@
-//
-//  TPPreciseTimer.m
-//  Loopy
-//
-//  Created by Michael Tyson on 06/09/2011.
-//  Copyright 2011 A Tasty Pixel. All rights reserved.
-//
-
-#import "TPPreciseTimer.h"
-#import <mach/mach_time.h>
-#import <pthread.h>
-
-#define kSpinLockTime 0.01
-//#define kAnalyzeTiming // Uncomment to display timing discrepancy reports
-
-static TPPreciseTimer *__sharedInstance = nil;
-
-static NSString *kTimeKey = @"time";
-static NSString *kTargetKey = @"target";
-static NSString *kSelectorKey = @"selector";
-static NSString *kArgumentKey = @"argument";
-#if NS_BLOCKS_AVAILABLE
-static NSString *kBlockKey = @"block";
-#endif
-
-@interface TPPreciseTimer ()
-- (void)scheduleAction:(SEL)action target:(id)target inTimeInterval:(NSTimeInterval)timeInterval;
-- (void)scheduleAction:(SEL)action target:(id)target context:(id)context inTimeInterval:(NSTimeInterval)timeInterval;
-- (void)cancelAction:(SEL)action target:(id)target;
-- (void)cancelAction:(SEL)action target:(id)target context:(id)context;
-#if NS_BLOCKS_AVAILABLE
-- (void)scheduleBlock:(void (^)(void))block inTimeInterval:(NSTimeInterval)timeInterval;
-#endif
-- (void)addSchedule:(NSDictionary*)schedule;
-void thread_signal(int signal);
-void *thread_entry(void* argument);
-- (void)thread;
-@end
-
-@implementation TPPreciseTimer
-
-+ (void)scheduleAction:(SEL)action target:(id)target inTimeInterval:(NSTimeInterval)timeInterval {
-    if ( !__sharedInstance ) __sharedInstance = [[TPPreciseTimer alloc] init];
-    [__sharedInstance scheduleAction:action target:target inTimeInterval:timeInterval];
-}
-+ (void)scheduleAction:(SEL)action target:(id)target context:(id)context inTimeInterval:(NSTimeInterval)timeInterval {
-    if ( !__sharedInstance ) __sharedInstance = [[TPPreciseTimer alloc] init];
-    [__sharedInstance scheduleAction:action target:target context:context inTimeInterval:timeInterval];
-}
-+ (void)cancelAction:(SEL)action target:(id)target {
-    if ( !__sharedInstance ) __sharedInstance = [[TPPreciseTimer alloc] init];
-    [__sharedInstance cancelAction:action target:target];
-}
-+ (void)cancelAction:(SEL)action target:(id)target context:(id)context {
-    if ( !__sharedInstance ) __sharedInstance = [[TPPreciseTimer alloc] init];
-    [__sharedInstance cancelAction:action target:target context:context];
-}
-#if NS_BLOCKS_AVAILABLE
-+ (void)scheduleBlock:(void (^)(void))block inTimeInterval:(NSTimeInterval)timeInterval {
-    if ( !__sharedInstance ) __sharedInstance = [[TPPreciseTimer alloc] init];
-    [__sharedInstance scheduleBlock:block inTimeInterval:timeInterval];
-}
-#endif
-
-- (id)init {
-    if ( !(self = [super init]) ) return nil;
-    
-    struct mach_timebase_info timebase;
-    mach_timebase_info(&timebase);
-    timebase_ratio = ((double)timebase.numer / (double)timebase.denom) * 1.0e-9;
-    
-    events = [[NSMutableArray alloc] init];
-    condition = [[NSCondition alloc] init];
-    
-    pthread_attr_t attr;
-    pthread_attr_init(&attr);
-    struct sched_param param;
-    param.sched_priority = sched_get_priority_max(SCHED_FIFO);
-    pthread_attr_setschedparam(&attr, &param);
-    pthread_attr_setschedpolicy(&attr, SCHED_FIFO);
-    pthread_create(&thread, &attr, thread_entry, (void*)self);
-    
-    return self;
-}
-
-- (void)scheduleAction:(SEL)action target:(id)target inTimeInterval:(NSTimeInterval)timeInterval {
-    [self addSchedule:[NSDictionary dictionaryWithObjectsAndKeys:
-                       NSStringFromSelector(action), kSelectorKey,
-                       target, kTargetKey,
-                       [NSNumber numberWithUnsignedLongLong:mach_absolute_time() + (timeInterval / timebase_ratio)], kTimeKey,
-                       nil]];
-}
-
-- (void)scheduleAction:(SEL)action target:(id)target context:(id)context inTimeInterval:(NSTimeInterval)timeInterval {
-    [self addSchedule:[NSDictionary dictionaryWithObjectsAndKeys:
-                       NSStringFromSelector(action), kSelectorKey,
-                       target, kTargetKey,
-                       [NSNumber numberWithUnsignedLongLong:mach_absolute_time() + (timeInterval / timebase_ratio)], kTimeKey,
-                       context, kArgumentKey,
-                       nil]];
-}
-
-- (void)cancelAction:(SEL)action target:(id)target {
-    [condition lock];
-    NSDictionary *originalNextEvent = [events count] > 0 ? [events objectAtIndex:0] : nil;
-    [events filterUsingPredicate:[NSPredicate predicateWithFormat:@"%K != %@ AND %K != %@", kTargetKey, target, kSelectorKey, NSStringFromSelector(action)]];
-    BOOL mustSignal = originalNextEvent != ([events count] > 0 ? [events objectAtIndex:0] : nil);
-    [condition signal];
-    [condition unlock];
-    if ( mustSignal ) {
-        pthread_kill(thread, SIGALRM); // Interrupt thread if it's performing a mach_wait_until
-    }
-}
-
-- (void)cancelAction:(SEL)action target:(id)target context:(id)context {
-    [condition lock];
-    NSDictionary *originalNextEvent = [events count] > 0 ? [events objectAtIndex:0] : nil;
-    [events filterUsingPredicate:[NSPredicate predicateWithFormat:@"%K != %@ AND %K != %@ AND %K != %@", kTargetKey, target, kSelectorKey, NSStringFromSelector(action), kArgumentKey, context]];
-    BOOL mustSignal = originalNextEvent != ([events count] > 0 ? [events objectAtIndex:0] : nil);
-    [condition signal];
-    [condition unlock];
-    if ( mustSignal ) {
-        pthread_kill(thread, SIGALRM); // Interrupt thread if it's performing a mach_wait_until
-    }
-}
-
-#if NS_BLOCKS_AVAILABLE
-- (void)scheduleBlock:(void (^)(void))block inTimeInterval:(NSTimeInterval)timeInterval {
-    [self addSchedule:[NSDictionary dictionaryWithObjectsAndKeys:
-                       [[block copy] autorelease], kBlockKey,
-                       [NSNumber numberWithUnsignedLongLong:mach_absolute_time() + (timeInterval / timebase_ratio)], kTimeKey,
-                       nil]];
-}
-#endif
-
-- (void)addSchedule:(NSDictionary*)schedule {
-    [condition lock];
-    [events addObject:schedule];
-    [events sortUsingDescriptors:[NSArray arrayWithObject:[NSSortDescriptor sortDescriptorWithKey:kTimeKey ascending:YES]]];
-    BOOL mustSignal = [events count] > 1 && [events objectAtIndex:0] == schedule;
-    [condition signal];
-    [condition unlock];
-    if ( mustSignal ) {
-        pthread_kill(thread, SIGALRM); // Interrupt thread if it's performing a mach_wait_until and new schedule is earlier
-    }
-}
-
-void *thread_entry(void* argument) {
-    [(TPPreciseTimer*)argument thread];
-    return NULL;
-}
-
-void thread_signal(int signal) {
-    // Ignore
-}
-
-- (void)thread {
-    signal(SIGALRM, thread_signal);
-    [condition lock];
-
-    while ( 1 ) {
-        while ( [events count] == 0 ) {
-            [condition wait];
-        }
-        NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
-        NSDictionary *nextEvent = [[[events objectAtIndex:0] retain] autorelease];
-        NSTimeInterval time = [[nextEvent objectForKey:kTimeKey] unsignedLongLongValue] * timebase_ratio;
-        
-        [condition unlock];
-        
-        mach_wait_until((uint64_t)((time - kSpinLockTime) / timebase_ratio));
-        
-        if ( (double)(mach_absolute_time() * timebase_ratio) >= time-kSpinLockTime ) {
-            
-            // Spin lock until it's time
-            uint64_t end = time / timebase_ratio;
-            while ( mach_absolute_time() < end );
-            
-#ifdef kAnalyzeTiming
-            double discrepancy = (double)(mach_absolute_time()*timebase_ratio) - time;
-            printf("TPPreciseTimer fired: %lfs time discrepancy\n", discrepancy);
-#endif
-            
-            // Perform action
-#if NS_BLOCKS_AVAILABLE
-            void (^block)(void) = [nextEvent objectForKey:kBlockKey];
-            if ( block ) {
-                block();
-            } else {
-#endif
-            id target = [nextEvent objectForKey:kTargetKey];
-            SEL selector = NSSelectorFromString([nextEvent objectForKey:kSelectorKey]);
-            if ( [nextEvent objectForKey:kArgumentKey] ) {
-                [target performSelector:selector withObject:[nextEvent objectForKey:kArgumentKey]];
-            } else {
-                [target performSelector:selector];
-            }
-#if NS_BLOCKS_AVAILABLE
-            }
-#endif
-            
-            [condition lock];
-            [events removeObject:nextEvent];
-        } else {
-            [condition lock];
-        }
-        
-        [pool release];
-    }
-}
-
-@end