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An Objective-C wrapper for Mac OS X’s FSEvents C API.


Name Size Rev. Time Author Log Message
CDEvents.xcodeproj
English.lproj
TestApp
.gitattributes 31 d95574b 2011-10-25 06:05:05 Aron Cedercrantz Change project settings. - Cleanup o...
.gitignore 283 3a4ae54 2011-11-03 00:53:34 Aron Cedercrantz Ignore "docs" directory.
CDEvent.h 13.22 k 88c6487 2013-07-03 05:17:39 Aron Cedercrantz Merge branch 'develop' of https://git...
CDEvent.m 4.92 k ad660ce 2014-02-21 07:18:40 Krzysztof Adamski Pass unisgnedIntValue Instead of unsi...
CDEvents.h 17.33 k 88c6487 2013-07-03 05:17:39 Aron Cedercrantz Merge branch 'develop' of https://git...
CDEvents.m 10.84 k 91e7662 2014-02-21 07:17:27 Krzysztof Adamski Pass CDEventsEventStreamCreationFlags...
CDEvents.podspec 521 b0e852c 2013-07-03 05:12:26 Aron Cedercrantz Update podspec to 1.2.1. Signed-off-...
CDEventsDelegate.h 2.21 k 453dfcc 2013-07-03 05:06:48 Aron Cedercrantz Bump copyright year. Signed-off-by: ...
CDEventsTestApp-Info.plist 895 963b07a 2010-04-10 10:18:53 Aron Cedercrantz Changed the formatting of the API doc...
CDEvents_Prefix.pch 158 963b07a 2010-04-10 10:18:53 Aron Cedercrantz Changed the formatting of the API doc...
Info.plist 861 acd2910 2014-02-25 04:49:51 Aron Cedercrantz Bump version to 1.2.2.
LICENSE 1.04 k 694b652 2011-11-02 22:41:00 Aron Cedercrantz Add license file.
README.mdown 6.07 k dc72057 2013-05-16 15:36:23 Tomoki Aonuma Fix whitespace.
api.appledoc.sh 1024 beb5d71 2011-11-02 22:40:30 Aron Cedercrantz Add script to generate documentation ...
api.doxygen 61.99 k 3417cae 2010-07-16 08:17:45 Aron Cedercrantz Added Doxygen configuration file.
compat.h 2.71 k 453dfcc 2013-07-03 05:06:48 Aron Cedercrantz Bump copyright year. Signed-off-by: ...
version.plist 461 963b07a 2010-04-10 10:18:53 Aron Cedercrantz Changed the formatting of the API doc...

README.mdown

CDEvents

Note: The develop branch requires Mac OS X 10.6 or newer as the framework relies on ARC and blocks.

Website: http://rastersize.github.com/CDEvents

What is this?

It's an Objective-C wrapper for Mac OS X's FSEvents C API with support for blocks. Furthermore, all the classes are immutable and it should be thread-safe.

Requirements

Requires Mac OS X 10.6 (Snow Leopard) and an Intel 64-bit CPU. The requirements stems from that automatic reference counting (ARC) is supported from 10.6 and up as long as the modern (i.e. 64-bit) Objective-C runtime is used since ARC requires the non-fragile ABI. Although the built product works on 10.6 and up it must be built on a machine running 10.7 (Lion) using Xcode 4.2 and the 10.7 SDK as the 10.6 SDK does not include ARC. The built product support both manual memory management and automatic reference counting.

If you need to support older versions of OS X or garbage collection please see the branch support/1.1. All 1.1.x version will support garbage collection and OS X 10.5.

Usage

You can use either the block based version (recommended) or the delegate based. Using both systems at the same time is not supported.

Block based (recommended)

  1. Add CDEvents to your project,
    • either by compiling the project and dragging the CDEvents.framework into your project or
    • by dragging the entire CDEvents project into your project as a sub-project.
  2. Import the CDEvents.h header where you need it.
  3. Set up your CDEvents instance and give it a block to execute when a event occurs.

Easy example code:

self.events = [[CDEvents alloc] initWithURLs:<NSArray of URLs to watch>
                                       block:^(CDEvents *watcher, CDEvent *event) {
                                           <Your code here>
                                       }];

Or use all the all-options initiator:

self.events = [[CDEvents alloc] initWithURLs:<NSArray of URLs to watch>
                                       block:^(CDEvents *watcher, CDEvent *event) {
                                           <Your code here>
                                       }
                                   onRunLoop:[NSRunLoop currentRunLoop]
                        sinceEventIdentifier:kCDEventsSinceEventNow
                        notificationLantency:CD_EVENTS_DEFAULT_NOTIFICATION_LATENCY
                     ignoreEventsFromSubDirs:CD_EVENTS_DEFAULT_IGNORE_EVENT_FROM_SUB_DIRS
                                 excludeURLs:<NSArray of URLs to exlude>
                         streamCreationFlags:kCDEventsDefaultEventStreamFlags];

See the test app (TestApp) for an example on how to use the framework.

Delegate based

This is the same behavior as pre ARC and blocks.

  1. Add CDEvents to your project,
    • either by compiling the project and dragging the CDEvents.framework into your project or
    • by dragging the entire CDEvents project into your project as a sub-project.
  2. Import the CDEvents.h header where you need it.
  3. Import the CDEventsDelegate.h header where you need it (i.e. in the file which declares your delegate).
  4. Implement the delegate (-URLWatcher:eventOccurred:) and create your CDEvents instance.
  5. Zero out the delegate when you no longer need it.

Example code:

self.events = [[CDEvents alloc] initWithURLs:<NSArray of URLs to watch>
                                    delegate:<Your delegate>
                                   onRunLoop:[NSRunLoop currentRunLoop]
                        sinceEventIdentifier:kCDEventsSinceEventNow
                        notificationLantency:CD_EVENTS_DEFAULT_NOTIFICATION_LATENCY
                     ignoreEventsFromSubDirs:CD_EVENTS_DEFAULT_IGNORE_EVENT_FROM_SUB_DIRS
                                 excludeURLs:<NSArray of URLs to exlude>
                         streamCreationFlags:kCDEventsDefaultEventStreamFlags];

See the test app (TestApp) for an example on how to use the framework.

Important: Since Mac OS X 10.6 is set as the deployment target automatic zeroing of weak references is not available. Thus you must set the delegate of CDEvents to nil when you no longer want to receive events. That is, at least in your -dealloc method. This is also required when using 10.7 and up! (delegate is an unsafe_unretained property.)

For more details please refer to the documentation in the header files and the section "API documentation" below.

API documentation

Read the latest API documentation or browse for each version of CDEvents. Alternatively you can generate it yourself, please see below.

appledoc

Run the script api.appledoc.sh from the root of the project. The script takes one optional argument, the version of the project as a string. If the version string is empty "HEAD" will be used instead.

Doxygen

You can generate API documentation with the help of Doxygen. In Doxygen open the file api.doxygen, click the Run tab and then the Run doxygen button. When it's done you should have a directory (ignored by git) in the root of the project named api with a sub-directory html in which you will find index.html double-click and enjoy.

Contributors

See GitHubs contributors to rastersize/CDEvents statistics page.

License

The code is released under the MIT-license.

If you want, even though you really don't have to, I would love to hear what you use CDEvents for! Send me an email (first name (i.e. aron) @ last name (i.e. cedercrantz) dot se).