interrupt

Stop Thread right after one Minute

由 对着背影说爱祢 提交于 2019-12-08 07:29:00
问题 I have a JButton to invoke my thread. But what I actually want to do is to stop the thread just after the one minute! My actionListener Method is: private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { new Frame2().setVisible(true); Thread t=new Thread(new Frame2()); t.start(); } My thread to run for only one minute is as follow: public void run(){ int i; while(!Thread.currentThread().isInterrupted()){ for(i=0;i<=100;i++){ if(i==100){ Thread.currentThread().interrupt(); } try

Level Triggered Interrupt handling and nested interrupts

由 北城余情 提交于 2019-12-08 05:40:28
[Updated question as GIC v2 has 3 registers ACK, EOIR, DIR] This is the most basic question which I need someone else to clarify and state that the sequence below is correct. In the following arch, [Core] ----- [ Interrupt Controller ] --Level Triggered -- [Device] a. Device Raises the Level and informs the Interrupt Controller b. Interrupt controller triggers core of an interrupt. (Assuming core's interrupts enabled) c. Assuming the Interrupt controller is GIC (used with ARM) and it has 3 registers - Interrupt Deactivate (GICC_DIR) - Interrupt ACK (which returns the IRQ number), (GICC_IAR) -

Why interrupt handlers (ISRs) cannot sleep?

由 放肆的年华 提交于 2019-12-08 04:18:52
问题 I am very confuse to get why interrupt handler can't sleep? i got 2 views for the same issue:- Interrupt Handler is not schedulable? Because it has no task_struct. if the handler sleeps, then the system may hang because the system clock interrupt is masked and incapable of scheduling the sleeping process. Are interrupt handlers schedule-able, but while the lower priority system clock interrupt is masked by these higher priority interrupts , they cannot be scheduled? Please give me a good

Install timer/clock ISR on Windows - Asynchronous call in a single threaded environment

由 耗尽温柔 提交于 2019-12-08 02:56:36
问题 I'm refining some code which simulated a context-switching scheduler on x86 Windows systems. The program compiles on Windows XP (Edit: probably not Windows 7) with some ancient Borland C compiler, and is being ported to being MSVC compilable. At one point, the code installs ISRs through these unavailable functions in dos.h : void (*)() getvect(int) void setvect(int, void (*)()); Specifically, the code installs an ISR for a (cyclic) timer interrupt. The calls are: tick_isr_old = getvect(0x08);

How to interrupt Python subprocesses on Windows when using Python C API?

由 穿精又带淫゛_ 提交于 2019-12-08 02:15:30
问题 I'm able to interrupt my subprocesses in Windows with import ctypes ctypes.windll.kernel32.GenerateConsoleCtrlEvent(1, _proc.pid) but only if I run it via normal Python process. When I run the same code via a separate launcher program using Python C API (code is below), the code above doesn't have any effect. Should I change my launcher somehow in order to be able to interrupt subprocesses? #include <Python.h> #include <windows.h> int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE, PWSTR

How to terminate CXF webservice call within Callable upon Future cancellation

由 南楼画角 提交于 2019-12-08 01:20:40
问题 Edit This question has gone through a few iterations by now, so feel free to look through the revisions to see some background information on the history and things tried. I'm using a CompletionService together with an ExecutorService and a Callable, to concurrently call the a number of functions on a few different webservices through CXF generated code.. These services all contribute different information towards a single set of information I'm using for my project. The services however can

Capturing user input at arbitrary times in python

由 て烟熏妆下的殇ゞ 提交于 2019-12-07 12:36:54
问题 Is there a way to send an interrupt to a python module when the user inputs something in the console? For example, if I'm running an infinite while loop, i can surround it with a try/except for KeyboardInterrupt and then do what I need to do in the except block. Is there a way to duplicate this functionality with any arbitrary input? Either a control sequence or a standard character? Edit: Sorry, this is on linux 回答1: Dependent on the operating system and the libraries available, there are

In x86 Intel VT-X non-root mode, can an interrupt be delivered at every instruction boundary?

由 杀马特。学长 韩版系。学妹 提交于 2019-12-07 08:47:25
问题 Other than certain normal specified conditions where interrupts are not delivered to the virtual processor (cli, if=0, etc), are all instructions in the guest actually interruptible? That is to say, when an incoming hardware interrupt is given to the LAPIC then to the processor, supposedly some internal magic happens to translate that to a virtual interrupt to the guest (using virtual APIC, no exiting). When that happens, does the currently executing instruction immediately serialize the OOO

What is dev_id parameter in request_irq?

由 北战南征 提交于 2019-12-07 07:47:51
问题 In the function declaration int request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), unsigned long irqflags, const char *devname, void *dev_id); Is dev_id an 'in' parameter or an 'out' parameter ? Where do we get this number from ? 回答1: Dev_id is an input argument and must be globally unique. Normally the address of the device data structure is used as the Dev_id . It has value NULL if the interrupt line is NOT shared. It holds relevance only when the interrupt

Low level I/O access using outb and inb

由 允我心安 提交于 2019-12-07 05:56:57
问题 i'm having hard time trying to understand how interrupts work. the code below initialize the Programmable Interrupt Controller #define PIC0_CTRL 0x20 /* Master PIC control register address. */ #define PIC0_DATA 0x21 /* Master PIC data register address. */ /* Mask all interrupts*/ outb (PIC0_DATA, 0xff); /* Initialize master. */ outb (PIC0_CTRL, 0x11); /* ICW1: single mode, edge triggered, expect ICW4. */ outb (PIC0_DATA, 0x20); /* ICW2: line IR0...7 -> irq 0x20...0x27. */ outb (PIC0_DATA,
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