Skip to content
This repository

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
tree: 5b39ea30e1
Fetching contributors…

Cannot retrieve contributors at this time

file 190 lines (148 sloc) 5.272 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190
//
// KSThreadProxy.m
//
// Copyright (c) 2008-2012 Mike Abdullah and Karelia Software
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL MIKE ABDULLAH OR KARELIA SOFTWARE BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//


#import "KSThreadProxy.h"


@interface KSThreadProxy : NSProxy
{
@private
    id _target;
    NSThread *_thread;
    BOOL _waitUntilDone;
}

- (id)initWithTarget:(id)target
              thread:(NSThread *)thread
       waitUntilDone:(BOOL)waitUntilDone;

@end


@implementation KSThreadProxy

- (id)initWithTarget:(id)target
              thread:(NSThread *)thread
       waitUntilDone:(BOOL)waitUntilDone;

{
    NSParameterAssert(target);
    NSParameterAssert(thread);
    
    _target = [target retain];
    _thread = [thread retain];
    _waitUntilDone = waitUntilDone;
    
    return self;
}

- (void)dealloc
{
    [_target release];
    [_thread release];
    
    [super dealloc];
}

- (NSMethodSignature *)methodSignatureForSelector:(SEL)aSelector
{
    NSMethodSignature *result = [_target methodSignatureForSelector:aSelector];
    return result;
}

- (void)forwardInvocation:(NSInvocation *)anInvocation
{
    [anInvocation retainArguments];
    
    [anInvocation performSelector:@selector(ks_invokeWithTargetAndReportExceptions:)
                         onThread:_thread
                       withObject:_target
                    waitUntilDone:_waitUntilDone];
}

@end


@implementation NSInvocation (KSThreadProxyAdditions)

/* We perform our own exception handling as by default -performSelectorOnMainThread:
* does nothing more than log exceptions.
*/
- (void)ks_invokeWithTargetAndReportExceptions:(id)target
{
@try
    {
        [self invokeWithTarget:target];
        [self retainArguments];
    }
    @catch (NSException *exception)
    {
        [NSApp reportException:exception];
    }
}

@end


#pragma mark -


@implementation NSObject (KSThreadProxy)

/* If the specified thread and the current thread are the same, returns self without
* creating a proxy object.
* For convenience, you can use nil to represent the main thread.
*/
- (id)ks_proxyOnThread:(NSThread *)thread
{
    return [self ks_proxyOnThread:thread waitUntilDone:YES];
}

- (id)ks_proxyOnThread:(NSThread *)thread waitUntilDone:(BOOL)waitUntilDone;
{
    if (!thread) thread = [NSThread mainThread];
    
    id result;
    if (thread == [NSThread currentThread])
    {
        result = self;
    }
    else
    {
        result = [[[KSThreadProxy alloc] initWithTarget:self
                                                 thread:thread
                                          waitUntilDone:waitUntilDone] autorelease];
    }
    
    return result;
}

@end


#pragma mark -


#ifdef NS_BLOCKS_AVAILABLE
@implementation NSThread (KSThreadProxy)

- (void)ks_performBlock:(void (^)())block;
{
    block = [block copy];
    [block performSelector:@selector(invoke) onThread:self withObject:nil waitUntilDone:NO];
    [block release];
}

- (void)ks_performBlockAndWait:(void (^)())block;
{
    [block performSelector:@selector(invoke) onThread:self withObject:nil waitUntilDone:YES];
}

- (void)ks_performUsingMode:(NSString*)mode block:(void (^)(void))block
{
    block = [block copy];
    [block performSelector:@selector(invoke) onThread:self withObject:nil waitUntilDone:NO modes:[NSArray arrayWithObject:mode]];
    [block release];
}

- (void)ks_performAndWaitUsingMode:(NSString*)mode block:(void (^)(void))block
{
    [block performSelector:@selector(invoke) onThread:self withObject:nil waitUntilDone:YES modes:[NSArray arrayWithObject:mode]];
}

- (void)ks_performUsingModes:(NSArray*)modes block:(void (^)(void))block
{
    block = [block copy];
    [block performSelector:@selector(invoke) onThread:self withObject:nil waitUntilDone:NO modes:modes];
    [block release];
}

- (void)ks_performAndWaitUsingModes:(NSArray*)modes block:(void (^)(void))block
{
    [block performSelector:@selector(invoke) onThread:self withObject:nil waitUntilDone:YES modes:modes];
}

@end
#endif
Something went wrong with that request. Please try again.