Search Results

Search found 48774 results on 1951 pages for 'linux development'.

Page 117/1951 | < Previous Page | 113 114 115 116 117 118 119 120 121 122 123 124  | Next Page >

  • How does Linux blocking I/O actually work?

    - by tgguy
    In Linux, when you make a blocking i/o call like read or accept, what actually happens? My thoughts: the process get taken out of the run queue, put into a waiting or blocking state on some wait queue. Then when a tcp connection is made (for accept) or the hard drive is ready or something for a file read, a hardware interrupt is raised which lets those processes waiting to wake up and run (in the case of a file read, how does linux know what processes to awaken, as there could be lots of processes waiting on different files?). Or perhaps instead of hardware interrupts, the individual process itself polls to check availability. Not sure, help?

    Read the article

  • LBA48 in Linux SCSI ATA Passthrough

    - by Ben Englert
    I am writing a custom disk monitoring/diagnostics app which, among other things, needs to do stuff to SATA disks behind a SAS PCI card under Linux. So far I am following this guide as well as the example code in sg_utils to pass ATA taskfiles through the SCSI layer. Seems to be working okay. However, in both cases, the CDB data structure (pointed to by the cmdp member of the sg_io argument to the ioctl) has only one unsigned char worth of space for the number of sectors. If you look at the ata_taskfile structure in linux\ata.h you'll see that it has an "nsect" and a "hob_nsect" field - high order bits for the sector count, to support LBA48. It turns out that in my application I need LBA48 support. So, anyone know how to set up an sg_io_hdr structure with an LBA48 sector count?

    Read the article

  • Reorganizing development environment for single developer/small shop

    - by Matthew
    I have been developing for my company for approximately three years. We serve up a web portal using Microsoft .NET and MS SQL Server on DotNetNuke. I am going to leave my job full time at the end of April. I am leaving on good terms, and I really care about this company and the state of the web project. Because I haven't worked in a team environment in a long time, I have probably lost touch with what 'real' setups look like. When I leave, I predict the company will either find another developer to take over, or at least have developers work on a contractual basis. Because I have not worked with other developers, I am very concerned with leaving the company (and the developer they hire) with a jumbled mess. I'd like to believe I am a good developer and everything makes sense, but I have no way to tell. My question, is how do I set up the development environment, so the company and the next developer will have little trouble getting started? What would you as a developer like in place before working on a project you've never worked on? Here's some relevant information: There is a development server onsite and a production server offsite in a data center . There is a server where backups and source code (Sourcegear Vault) are stored. There is no formal documentation but there are comments in the code. The company budget is tight so free suggestions will help the best. I will be around after the end of April on a consulting basis so I can ask simple questions but I will not be available full time to train someone

    Read the article

  • C++ Access to SQL Server from Linux

    - by Meloun
    I need to write some data to SQL Server database from Linux in c++. I found this sqlapi.com But I think, at first ODBC driver has to be installed an has to work. I folowed this adminlife.net/allgemein/mssql-zugriff-unter-debian-etch-mit-unixodbc-und-freetds/ or this http://b.gil.megiteam.pl/2009/11/linux-odbc-to-mssql/ But it didnt work, the port 1433 seems to be closed ($ sudo nmap -PN -sU -p 1433 192.168.56.101 - port "filtered") isql -v sqlexpress sa - wait with no response or get "couldn't connect to sql" From other PC with Windows I have no problem to write data in SQL Server, so server should be right configured to remote access. any idea?

    Read the article

  • Linux Kernel - Adding field to task_struct

    - by Drex
    I'm playing around with the linux kernel and added a struct field to the task_struct in sched.h. I know that can be costly but my struct is very small. I then initialize the new struct in INIT_TASK() and also re-initialize in fork.c copy_process() function so that when the INIT task or any other task creates a new process the process gets the init values. What then happens is when I try to run the kernel I get a SEGFAULT. The gdb error is: Locating the bottom of the address space ... Program received signal SIGSEGV, Segmentation fault. 0x08066ad7 in page_ok (page=) at arch/um/os-Linux/sys-i386/task_size.c:31 31 n = *address; It looks like it fails out in task_size. Is there anything else I need to do to add a field to task_struct?

    Read the article

  • Import C + Makefile into a linux IDE?

    - by Jessica
    I have a project for Linux that i've been developing for some time. Basically it's a bunch of C and H files together with a directory structure and a Makefile. Every time I need to debug something it's so painful, I need to manually search for var. definitions, structs, etc. Is there any good IDE out there for Linux that will allow me to import those files into a "project" and that will provide code completion or at least an easy way to get my bearings in the source code? thanks!

    Read the article

  • C++ Access to MSSQL from Linux

    - by Meloun
    Hi, I need to write some data to mssql database from linux in c++. I found this sqlapi.com But I think, at first ODBC driver has to be installed an has to work. I folowed this adminlife.net/allgemein/mssql-zugriff-unter-debian-etch-mit-unixodbc-und-freetds/ or this http://b.gil.megiteam.pl/2009/11/linux-odbc-to-mssql/ But it didnt work, the port 1433 seems to be closed ($ sudo nmap -PN -sU -p 1433 192.168.56.101 - port "filtered") isql -v sqlexpress sa - wait with no response or get "coulndt connect to sql" From other PC with Windows I have no problem to write data in mssql, so server should be right configured to remote access. any idea?

    Read the article

  • How to make an application scriptable in Linux

    - by arx
    I've written an application in C++ that takes a complex binary file format and translates it into human-readable text. Having edited the text you can recompile it back into the binary file format. This would be more useful if the application's internal object model was scriptable. On Windows I'd expose the objects using COM or .Net but I want this to work on Linux. I could embed a scripting language but that's a fair bit of work, and limits users to the scripting language I choose. Ideally, I'm looking for some way of exposing a scriptable DOM from my application that is: Widely support in scripting languages (without writing language-specific wrappers) Cross-platform (but Linux support is most important) In-process (but this isn't essential)

    Read the article

  • Available IDE for CLI only Debian Linux distro

    - by ultrajohn
    Hi Guys! I don't know if I am being clear with my question. I would like to ask for suggestions on the available IDEs that you I use in a command line interface (CLI) only linux distro. I am using debian. I want to program in C or C++ and I could not start because I dont have an ide or just a simple text editor. I don't have an idea how to save a file created using 'edit' since it is also my first time working in a linux enviroment. I hope you understand me. Thanks a lot!

    Read the article

  • How to profiling my C++ application on linux

    - by richard
    HI, I would like to profile my c++ application on linux. I would like to find out how much time my application spent on CPU processing vs time spent on block by IO/being idle. I know there is a profile tool call valgrind on linux. But it breaks down time spent on each method, and it does not give me an overall picture of how much time spent on CPU processing vs idle? Or is there a way to do that with valgrind. Thank you.

    Read the article

  • Installing Java SDK on Linux.

    - by Negai
    Hi everyone, I'm currently trying to install Java SDK on my Debian 'Etch'. Even though the installation process has been described a number of times, but still I haven't found the information to solve the problem. Here is, what I'm getting: m@sanctuary:~/distr/java$ fakeroot make-jpkg jdk-6u20-linux-i586.bin Creating temporary directory: /tmp/make-jpkg.sqQPnaxiwl Loading plugins: blackdown-j2re.sh blackdown-j2sdk.sh common.sh ibm-j2re.sh ibm-j2sdk.sh j2re.sh j2sdk-doc.sh j2sdk.sh j2se.sh sun-j2re.sh sun-j2sdk-doc.sh sun-j2sdk.sh Detected Debian build architecture: i386 Detected Debian GNU type: i486-linux-gnu No matching plugin was found. Removing temporary directory: done Could anybody help me? Thanks in advance.

    Read the article

  • How to profile my C++ application on linux

    - by richard
    HI, I would like to profile my c++ application on linux. I would like to find out how much time my application spent on CPU processing vs time spent on block by IO/being idle. I know there is a profile tool call valgrind on linux. But it breaks down time spent on each method, and it does not give me an overall picture of how much time spent on CPU processing vs idle? Or is there a way to do that with valgrind. Thank you.

    Read the article

  • using eclipse to connect to remote machine[linux server] using ssh

    - by lalit
    Hi, I am searching out for solution to use any of the IDE's such as Netbeans/ eclipse to run .jsp and .java files from a remote machine using linux as the OS. The .java and .jsp files are on the server . So, an IDE which would let me access the server and let me update the files directly on the server would be great. I use SSH terminal to connect to the server to update and get files. Now, if there was an easier way to just have an access using IDE to the linux remote machine. that would be great. Please let me know regarding the same. Thank you very much for your time. Regards.

    Read the article

< Previous Page | 113 114 115 116 117 118 119 120 121 122 123 124  | Next Page >