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开源软件名称:kstenerud/KSCrash开源软件地址:https://github.com/kstenerud/KSCrash开源编程语言:Objective-C 37.3%开源软件介绍:KSCrashThe Ultimate Crash ReporterAnother crash reporter? Why?Because while the existing crash reporters do report crashes, there's a heck of a lot more that they COULD do. Here are some key features of KSCrash:
KSCrash handles the following kinds of crashes:
KSCrash can report to the following servers:Here are some examples of the reports it can generate. What's New?Call for help!My life has changed enough over the past few years that I can't keep up with giving KSCrash the love it needs. I'm looking for someone to help me maintain this package, make sure issues get handled, merges are properly vetted, and code quality remains high. Please contact me personally (kstenerud at my gmail address) or comment in #313 VERY VERY VERY preliminary Android support.And I do mean PRELIMINARY. Most stuff doesn't work, but it does compile. Look in the Android subdir if you want to play around with it. C++ Exception HandlingThat's right! Normally if your app terminates due to an uncaught C++ exception, all you get is this:
No way to track what the exception was or where it was thrown from! Now with KSCrash, you get the uncaught exception type, description, and where it was thrown from:
Custom Crashes & Stack TracesYou can now report your own custom crashes and stack traces (think scripting languages): - (void) reportUserException:(NSString*) name
reason:(NSString*) reason
lineOfCode:(NSString*) lineOfCode
stackTrace:(NSArray*) stackTrace
terminateProgram:(BOOL) terminateProgram; See KSCrash.h for details. Unstable FeaturesThe following features should be considered "unstable" and are disabled by default:
How to Build KSCrash
When it has finished building, it will show you the framework in Finder. You can use it like you would any other framework. How to Use KSCrash
#import <KSCrash/KSCrash.h>
// Include to use the standard reporter.
#import <KSCrash/KSCrashInstallationStandard.h>
// Include to use Quincy or Hockey.
#import <KSCrash/KSCrashInstallationQuincyHockey.h>
// Include to use the email reporter.
#import <KSCrash/KSCrashInstallationEmail.h>
// Include to use Victory.
#import <KSCrash/KSCrashInstallationVictory.h>
- (BOOL)application:(UIApplication*) application didFinishLaunchingWithOptions:(NSDictionary*) launchOptions
{
KSCrashInstallationStandard* installation = [KSCrashInstallationStandard sharedInstance];
installation.url = [NSURL URLWithString:@"http://put.your.url.here"];
// OR:
KSCrashInstallationQuincy* installation = [KSCrashInstallationQuincy sharedInstance];
installation.url = [NSURL URLWithString:@"http://put.your.url.here"];
// OR:
KSCrashInstallationHockey* installation = [KSCrashInstallationHockey sharedInstance];
installation.appIdentifier = @"PUT_YOUR_HOCKEY_APP_ID_HERE";
// OR:
KSCrashInstallationEmail* installation = [KSCrashInstallationEmail sharedInstance];
installation.recipients = @[@"[email protected]"];
// Optional (Email): Send Apple-style reports instead of JSON
[installation setReportStyle:KSCrashEmailReportStyleApple useDefaultFilenameFormat:YES];
// Optional: Add an alert confirmation (recommended for email installation)
[installation addConditionalAlertWithTitle:@"Crash Detected"
message:@"The app crashed last time it was launched. Send a crash report?"
yesAnswer:@"Sure!"
noAnswer:@"No thanks"];
// OR:
KSCrashInstallationVictory* installation = [KSCrashInstallationVictory sharedInstance];
installation.url = [NSURL URLWithString:@"https://put.your.url.here/api/v1/crash/<application key>"];
[installation install];
…
} This will install the crash monitor system (which intercepts crashes and stores reports to disk). Note that there are other properties you can and probably will want to set for the various installations. Once you're ready to send any outstanding crash reports, call the following: [installation sendAllReportsWithCompletion:^(NSArray *filteredReports, BOOL completed, NSError *error)
{
// Stuff to do when report sending is complete
}]; Recommended ReadingIf possible, you should read the following header files to fully understand what features KSCrash has, and how to use them:
Understanding the KSCrash CodebaseI've written a quick code tour here Advanced UsageEnabling on-device symbolicationOn-device symbolication requires basic symbols to be present in the final build. To enable this, go to your app's build settings and set Strip Style to Debugging Symbols. Doing so increases your final binary size by about 5%, but you get on-device symbolication. Enabling advanced functionality:KSCrash has advanced functionality that can be very useful when examining crash reports in the wild. Some involve minor trade-offs, so most of them are disabled by default. Custom User Data (userInfo in KSCrash.h)You can store custom user data to the next crash report by setting the userInfo property in KSCrash.h. Zombie Tracking (KSCrashMonitorTypeZombie in KSCrashMonitorType.h)KSCrash has the ability to detect zombie instances (dangling pointers to deallocated objects). It does this by recording the address and class of any object that gets deallocated. It stores these values in a cache, keyed off the deallocated object's address. This means that the smaller you set the cache size, the greater the chance that a hash collision occurs and you lose information about a previously deallocated object. With zombie tracking enabled, KSCrash will also detect a lost NSException and print its contents. Certain kinds of memory corruption or stack corruption crashes can cause the exception to deallocate early, further twarting efforts to debug your app, so this feature can be quite handy at times. Trade off: Zombie tracking at the cost of adding very slight overhead to object deallocation, and having some memory reserved. Deadlock Detection (KSCrashMonitorTypeMainThreadDeadlock in KSCrashMonitorType.h)WARNING WARNING WARNING WARNING WARNING WARNING WARNING This feature is UNSTABLE! It can false-positive and crash your app! If your main thread deadlocks, your user interface will become unresponsive, and the user will have to manually shut down the app (for which there will be no crash report). With deadlock detection enabled, a watchdog timer is set up. If anything holds the main thread for longer than the watchdog timer duration, KSCrash will shut down the app and give you a stack trace showing what the main thread was doing at the time. This is wonderful, but you must be careful: App initialization generally occurs on the main thread. If your initialization code takes longer than the watchdog timer, your app will be forcibly shut down during start up! If you enable this feature, you MUST ensure that NONE of your normally running code holds the main thread for longer than the watchdog value! At the same time, you'll want to set the timer to a low enough value that the user doesn't become impatient and shut down the app manually before the watchdog triggers! Trade off: Deadlock detection, but you must be a lot more careful about what runs on the main thread! Memory Introspection (introspectMemory in KSCrash.h)When an app crashes, there are usually objects and strings in memory that are being referenced by the stack, registers, or even exception messages. When enabled, KSCrash will introspect these memory regions and store their contents in the crash report. You can also specify a list of classes that should not be introspected by setting the doNotIntrospectClasses property in KSCrash. Custom crash handling code (onCrash in KSCrash.h)If you want to do some extra processing after a crash occurs (perhaps to add more contextual data to the report), you can do so. However, you must ensure that you only use async-safe code, and above all else never call Objective-C code from that method! There are many cases where you can get away with doing so anyway, but there are certain classes of crashes where handler code that disregards this warning will cause the crash handler to crash! Note that if this happens, KSCrash will detect it and write a full report anyway, though your custom handler code may not fully run. Trade off: Custom crash handling code, but you must be careful what you put in it! KSCrash log redirectionThis takes whatever KSCrash would have printed to the console, and writes it to a file instead. I mostly use this for debugging KSCrash itself, but it could be useful for other purposes, so I've exposed an API for it. ExamplesThe workspace includes some example apps, which demonstrate common KSCrash usage. Please look at the top of AppDelegate.m in each app for a description of what it does. LicenseCopyright (c) 2012 Karl Stenerud Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in the documentation of any redistributions of the template files themselves (but not in projects built using the templates). THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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