private void button1_Click(object sender, EventArgs args) { Stream src = …, dst = …; Task t = CopyStreamToStreamAsync(src, dst); t.Wait(); // deadlock! } Here, the developer should have written button1_Click as an async method and then await-ed the Task instead of using its ...
Themain thread, or theUI thread, is the thread responsible for managing the UI. Every application can only have one main thread in order to avoid a classical problem calleddeadlock. This can happen when many threads access the same resources — in this case, UI components — in a d...
If the server writes without reading (for example, responding with a large amount of data), it could deadlock with the client. A read-write design is acceptable for simple in-house services but shouldn’t be used for services that are critical or public-facing. The Response...
(or your coworkers) don’t regularly use async. Consider what could happen over time as the service code is maintained. A maintenance developer might forget a ConfigureAwait, and at that point the blocking of the UI thread would become a deadlock of the UI thread. (This is described in ...
This is in violation of one of the cardinal rules of concurrent programming: "do not block while holding a lock," the reason being that it increases the potential for deadlock. More practically, it means we cannot time-out the thread waiting for the lock until it acquires the lock. 5.3 ...
Since the .NET CLR is programming language independent, the client would still have a choice of programming languages. We decide to use .NET's built-in serialization. Therefore, we run xsd.exe again to create source files to be used by the service consumer, and get a file that looks ...
action->handler) { 453 ppc_spurious_interrupts++; 454 printk(KERN_DEBUG "Unhandled interrupt %x, disabled\n",irq); 455 /* We can't call disable_irq here, it would deadlock */ 456 ++desc->depth; 457 desc->status |= IRQ_DISABLED; 458 mask_irq(irq); 459 /* This is a real ...
programs, and highlighting a\ndeadlock-related discrepancy between the principal execution models of SCOOP.\nFurthermore, we demonstrate the extensibility of the workbench by generalising\nthe formalisation of an execution model to support recently proposed extensions\nfor distributed programming. Our...
This is an example of using dead-letter queues in an AWS SAM template: SendOrderToShipping:Type:AWS::Serverless::FunctionProperties:Description:Function that sends order to shippingHandler:src/send_order_to_shipping.lambda_handlerDeadLetterQueue:Type:SQSTargetArn:!GetAttOrderShippingFunctionDLQ.Arn...
Demo: let’s deadlock it! Demo: your ownSynchronizationContext Demo: Scheduler Azure Durable Functions Sync vs async Demo: utilizing legacy synchronous APIs Fire and forget TaskCompletionSource Demo: wrapping callback-based APIs (Event-Based Asynchronous Pattern) ...