//
//  GTMNSThread+Blocks.m
//
//  Copyright 2012 Google Inc.
//
//  Licensed under the Apache License, Version 2.0 (the "License"); you may not
//  use this file except in compliance with the License.  You may obtain a copy
//  of the License at
//
//  http://www.apache.org/licenses/LICENSE-2.0
//
//  Unless required by applicable law or agreed to in writing, software
//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
//  License for the specific language governing permissions and limitations
//  under the License.
//

#import "GTMNSThread+Blocks.h"

#if NS_BLOCKS_AVAILABLE

@implementation NSThread (GTMBlocksAdditions)

+ (void)gtm_runBlockOnCurrentThread:(void (^)())block {
  block();
}

- (void)gtm_performBlock:(void (^)())block {
  if ([[NSThread currentThread] isEqual:self]) {
    block();
  } else {
    [self gtm_performWaitingUntilDone:NO block:block];
  }
}

- (void)gtm_performWaitingUntilDone:(BOOL)waitDone block:(void (^)())block {
  [NSThread performSelector:@selector(gtm_runBlockOnCurrentThread:)
                   onThread:self
                 withObject:[[block copy] autorelease]
              waitUntilDone:waitDone];
}

+ (void)gtm_performBlockInBackground:(void (^)())block {
  [NSThread performSelectorInBackground:@selector(gtm_runBlockOnCurrentThread:)
                             withObject:[[block copy] autorelease]];
}

@end

#endif  // NS_BLOCKS_AVAILABLE