JAHPQNSURLSessionDemux.h 4.7 KB

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  1. /*
  2. File: JAHPQNSURLSessionDemux.h
  3. Abstract: A general class to demux NSURLSession delegate callbacks.
  4. Version: 1.1
  5. Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
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  7. terms, and your use, installation, modification or redistribution of
  8. this Apple software constitutes acceptance of these terms. If you do
  9. not agree with these terms, please do not use, install, modify or
  10. redistribute this Apple software.
  11. In consideration of your agreement to abide by the following terms, and
  12. subject to these terms, Apple grants you a personal, non-exclusive
  13. license, under Apple's copyrights in this original Apple software (the
  14. "Apple Software"), to use, reproduce, modify and redistribute the Apple
  15. Software, with or without modifications, in source and/or binary forms;
  16. provided that if you redistribute the Apple Software in its entirety and
  17. without modifications, you must retain this notice and the following
  18. text and disclaimers in all such redistributions of the Apple Software.
  19. Neither the name, trademarks, service marks or logos of Apple Inc. may
  20. be used to endorse or promote products derived from the Apple Software
  21. without specific prior written permission from Apple. Except as
  22. expressly stated in this notice, no other rights or licenses, express or
  23. implied, are granted by Apple herein, including but not limited to any
  24. patent rights that may be infringed by your derivative works or by other
  25. works in which the Apple Software may be incorporated.
  26. The Apple Software is provided by Apple on an "AS IS" basis. APPLE
  27. MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
  28. THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
  29. FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
  30. OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
  31. IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
  32. OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  33. SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  34. INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
  35. MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
  36. AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
  37. STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
  38. POSSIBILITY OF SUCH DAMAGE.
  39. Copyright (C) 2014 Apple Inc. All Rights Reserved.
  40. */
  41. #import <Foundation/Foundation.h>
  42. /*! A simple class for demultiplexing NSURLSession delegate callbacks to a per-task delegate object.
  43. You initialise the class with a session configuration. After that you can create data tasks
  44. within that session by calling -dataTaskWithRequest:delegate:modes:. Any delegate callbacks
  45. for that data task are redirected to the delegate on the thread that created the task in
  46. one of the specified run loop modes. That thread must run its run loop in order to get
  47. these callbacks.
  48. */
  49. @interface JAHPQNSURLSessionDemux : NSObject
  50. /*! Create a demultiplex for the specified session configuration.
  51. * \param configuration The session configuration to use; if nil, a default session is created.
  52. * \returns An initialised instance.
  53. */
  54. - (instancetype)initWithConfiguration:(NSURLSessionConfiguration *)configuration;
  55. @property (atomic, copy, readonly ) NSURLSessionConfiguration * configuration; ///< A copy of the configuration passed to -initWithConfiguration:.
  56. @property (atomic, strong, readonly ) NSURLSession * session; ///< The session created from the configuration passed to -initWithConfiguration:.
  57. /*! Creates a new data task whose delegate callbacks are routed to the supplied delegate.
  58. * \details The callbacks are run on the current thread (that is, the thread that called this
  59. * method) in the specified modes.
  60. *
  61. * The delegate is retained until the task completes, that is, until after your
  62. * -URLSession:task:didCompleteWithError: delegate callback returns.
  63. *
  64. * The returned task is suspend. You must resume the returned task for the task to
  65. * make progress. Furthermore, it's not safe to simply discard the returned task
  66. * because in that case the task's delegate is never released.
  67. *
  68. * \param request The request that the data task executes; must not be nil.
  69. * \param delegate The delegate to receive the data task's delegate callbacks; must not be nil.
  70. * \param modes The run loop modes in which to run the data task's delegate callbacks; if nil or
  71. * empty, the default run loop mode (NSDefaultRunLoopMode is used).
  72. * \returns A suspended data task that you must resume.
  73. */
  74. - (NSURLSessionDataTask *)dataTaskWithRequest:(NSURLRequest *)request delegate:(id<NSURLSessionDataDelegate>)delegate modes:(NSArray *)modes;
  75. @end