probe | 易学教程

Probing/sampling/interpolating VTK data using python TVTK or MayaVi

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问题 I would like to visualise a VTK data file (OpenFOAM output) using python. The plot I would like to make is a 1-d line plot of a quantity between two endpoints. To do so, the unstructured data should be interpolated on the points which lie between the two endpoints. I've used the package Mayavi to visualise the VTK data. At the mayavi webpage there is a description of probing a single value from a scalarfield. This function does not work on a VTK file. Also I've found a delaunay3d method (mlab

How to activate sh DTrace Provider?

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问题 I've found out about patches (and updates) for an x86 sh binary in 2007 to support sh DTrace provider. However I can't find any probes on OS X. I'm checking by: $ sudo dtrace -l | grep command-entry See: /bin/sh DTrace Provider at Oracle site (same article on blog) Maybe because my sh is the same as GNU bash? $ /bin/sh --version GNU bash, version 3.2.57(1)-release (x86_64-apple-darwin15) Where these probes were implemented, how I can find them or how I can activate them? Were there only

Enumerate the pages in a memory range

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问题 I'm using C++ on Windows under Visual Studio 2012. I have a start and end memory address and need to generate a list of page base addresses/handles between the two addresses. I considered the possibility of probing the pages manually but thought there must be a better way to enumerate them. Does such a way exist? Disclaimer; The final page handles must be the base address such that when the size of a windows page is added to them the resulting address does not overlap into the next page. The

Linux USB driver probe not called if device already plugged

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问题 If I use a modified usb skeleton driver on Linux and I insmod the module with the USB device already plugged in, the probe function doesn't get called. I need to unplug and replug the device in order for the driver to be activated. This is not the case for e.g. the serial drivers, I made some tests. Is there a reason for this? How do I get the probe function to get called? 回答1: Almost all USB HID devices are automatically managed by usbhid driver. Try the following: sudo rmmod usbhid sudo

Linux USB driver probe not called if device already plugged

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If I use a modified usb skeleton driver on Linux and I insmod the module with the USB device already plugged in, the probe function doesn't get called. I need to unplug and replug the device in order for the driver to be activated. This is not the case for e.g. the serial drivers, I made some tests. Is there a reason for this? How do I get the probe function to get called? Almost all USB HID devices are automatically managed by usbhid driver. Try the following: sudo rmmod usbhid sudo insmod your_driver sudo insmod usbhid You probably need to unbind your device from usbhid and bind it to your

Phone doesn't send all stored ssids while capturing Wi-Fi probe wequests

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问题 I build a script with scapy to capture probe requests in a monitornig wi-fi interface. I successfully capture the requests, and some of the SSIDs contained in them. But most of the networks stored in the phone don't get broadcasted. And there isn't a clear pattern of why this happens. Some phones don't broadcast ssids at all. I'm trying to find an explanation for the reasoning behind this behaviour, but haven't found any, apart that the hidden networks should be broadcasted in order for the

Phone doesn't send all stored ssids while capturing Wi-Fi probe wequests

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I build a script with scapy to capture probe requests in a monitornig wi-fi interface. I successfully capture the requests, and some of the SSIDs contained in them. But most of the networks stored in the phone don't get broadcasted. And there isn't a clear pattern of why this happens. Some phones don't broadcast ssids at all. I'm trying to find an explanation for the reasoning behind this behaviour, but haven't found any, apart that the hidden networks should be broadcasted in order for the phone to connect to them, but even that is not true, and most of the broadcasted ones are visible.

Apache tika detects mime-type incorrectly for csv

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I've created .csv file using excel and I wrote following code using apache tika: public static boolean checkThatMimeTypeIsCsv(InputStream inputStream) throws IOException { BufferedInputStream bis = new BufferedInputStream(inputStream); AutoDetectParser parser = new AutoDetectParser(); Detector detector = parser.getDetector(); Metadata md = new Metadata(); MediaType mediaType = detector.detect(bis, md); return "text/csv".equals(mediaType.toString()); } public static void main(String[] args) throws IOException { System.out.println(checkThatMimeTypeIsCsv(new FileInputStream("Data.csv"))); } But

Apache tika detects mime-type incorrectly for csv

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问题 I've created .csv file using excel and I wrote following code using apache tika: public static boolean checkThatMimeTypeIsCsv(InputStream inputStream) throws IOException { BufferedInputStream bis = new BufferedInputStream(inputStream); AutoDetectParser parser = new AutoDetectParser(); Detector detector = parser.getDetector(); Metadata md = new Metadata(); MediaType mediaType = detector.detect(bis, md); return "text/csv".equals(mediaType.toString()); } public static void main(String[] args)