debugging tricks you wish you knew - tamir dresher

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Tamir DresherSenior Software ArchitectJ

Debugging tricks you wish you knew

Debugging is a time-travel

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• Software architect, consultant and instructor• Software Engineering Lecturer @ Ruppin Academic Center• Reactive Extensions in .NET (Manning)

@tamir_dreshertamirdr@codevalue.nethttp://www.TamirDresher.com.

About Me

Agenda

BreakpointsComparing object while debuggingExceptionsDebugging Multithreaded ApplicationsPost-mortum debuggingDebugging LINQ

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Breakpoints

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Setting New Breakpoints

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Method Breakpoints

If you type a method name (without class name)VS select all that matches

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Conditional Breakpoints

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Conditional Breakpoints (OzCode)

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invoice.Id 915486 intinvoice.Id 915486 int

Comparing Instances

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Make object ID

The object is later available in every watch window

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OzCode Comapre

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Exception

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First Chance Exceptions

Breaking when thrown

OzCode makes it easier

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Predicting the future

Predict

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Multithreading

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Staying on the same thread (freezing other threads)

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Tracepoints (VS)

a.k.a Printf(…) debugging

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Tracepoints (OzCode)

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Show All Instances

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Finding Tasks Deadlocks

Debug –> windows –> Tasks

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Post-Mortem Debugging

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Automatic Dump Creation

To enable it, set the reg key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Windows Error Reporting\LocalDumps

DumpFolder – Location for the output dumpsDumpCount – Maximum amount of dumps in the folderDumpType

1 – Mini Dump2 – Full Dump0 – Custom Dump

CustomDumpFlags – if DumpType is 0, set the dump options

Debugging using the Dump (1)

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Debugging using the Dump (2)

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Debugging *.exe Files

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LINQ

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LINQ Debugging

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Export

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Custom Expressions

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Give it a try

https://github.com/oz-code/OzCodeDemo

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Presenter contact detailst: @tamir_dreshere: tamirdr@codevalue.netb: TamirDresher.comw: www.codevalue.net

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