Search Results

Search found 16894 results on 676 pages for 'block device'.

Page 93/676 | < Previous Page | 89 90 91 92 93 94 95 96 97 98 99 100  | Next Page >

  • "// ..." comments at end of code block after } - good or bad?

    - by gablin
    I've often seen such comments be used: function foo() { ... } // foo while (...) { ... } // while if (...) { ... } // if and sometimes even as far as if (condition) { ... } // if (condition) I've never understood this practice and thus never applied it. If your code is so long that you need to know what this ending } is then perhaps you should consider splitting it up into separate functions. Also, most developers tools are able to jump to the matching bracket. And finally the last is, for me, a clear violation to the DRY principle; if you change the condition you would have to remember to change the comment as well (or else it could get messy for the maintainer, or even for you). So why do people use this? Should we use it, or is it bad practice?

    Read the article

  • How do I combine the two methods of cryptography, CBC cipher block and Vingenere Chiper [on hold]

    - by Bangpe
    Code Vingenere static String encrypt(String text, final String key) { String res = ""; text = text.toUpperCase(); for (int i = 0, j = 0; i < text.length(); i++) { char c = text.charAt(i); if (c < 'A' || c > 'Z') continue; res += (char)((c + key.charAt(j) - 2 * 'A') % 26 + 'A'); j = ++j % key.length(); } return res; } Code CBC Chiper public CbcBlockCipher( BlockCipher blockCipher ) { super( blockCipher.keySize(), blockCipher.blockSize() ); this.blockCipher = blockCipher; iv = new byte[blockSize()]; zeroBlock( iv ); temp = new byte[blockSize()]; }

    Read the article

  • Why can't a device connect through a wireless after router restart?

    - by Kalmar
    My laptop with lubuntu 12.04 used to connect to the wifi. But after the router (Cisco E4200) was restarted I cannot connect anymore through wireless connection. (No problem using a cable.) The network is hidden and secured by WPA/WPA2 Personal, I am the only person having this problem, so I guess it's somewhere on my side. What could cause such a problem, how to diagnose it and finally how to fix it?

    Read the article

  • How to create a script for moving a 3rd person controller in an iOS device by using Javascript in Unity3D?

    - by user36563
    I've a code but I'm not sure about the steps, so what I should do after the script? pragma strict public var horizontalSpeed : float = 1.0; public var verticalSpeed : float = 1.0; private var h : float = 0.0; private var v : float = 0.0; private var lastPos : Vector3 = Vector3.zero; function Update() { if UNITY_EDITOR if ( Input.GetMouseButtonDown(0) ) { lastPos = Input.mousePosition; } else if ( Input.GetMouseButton(0) ) { var delta = Input.mousePosition - lastPos; h = horizontalSpeed * delta.x ; transform.Rotate( 0, -h, 0, Space.World ); v = verticalSpeed * delta.y ; transform.position += transform.forward * v * Time.deltaTime; lastPos = Input.mousePosition; } else if (Input.touchCount == 1) { var touch : Touch = Input.GetTouch(0); if (touch.phase == TouchPhase.Moved) { h = horizontalSpeed * touch.deltaPosition.x ; transform.Rotate( 0, -h, 0, Space.World ); v = verticalSpeed * touch.deltaPosition.y ; transform.position += transform.forward * v * Time.deltaTime; } } endif }

    Read the article

  • True column-mode (block-selection and editing) text editor solution?

    - by tamale
    In windows, I used to use a text editor called crimson editor which featured the best column-mode editing support I have yet to use. When enabled via a simple Alt-C shortcut, selections could be made with the mouse or cursor keys and they would be visual blocks rather than wrapped-lines. These selections could be deleted, moved, copied, pasted, and all of the operations just made sense. You could also just start typing, and you'd get a column of the characters as you're typing. There are multiple ways of getting parts of the these features working separately discussed on this forum thread, but no one has yet to provide a solution that provides this all-encompassing and easy-to-use method. If someone could point me to a gedit plugin where this work is actively being pursued, perhaps I could help with the coding myself. If someone is aware of a text editor that already provides this full functionality, I'd appreciate the info. Running crimson editor through wine and the close-but-not-quite multi-edit plugin for gedit are the temporary solutions I'm 'getting by with' for the time being.

    Read the article

  • iOS Book App with Custom Book Repositories. Will Apple block this? [closed]

    - by BrianHanifin
    I am working with a kindergarten teacher to create an iPad/iPhone app which plays audio of her narrating each page of the "book". She wishes to only share some of the books with students in her class. Can I create a mechanism for downloading books from a custom repository link? I would send the URL home with the kids and have the parents type it into the app. I would include a couple of books preloaded with the app. I could even provide a sample repository with a sample book if you think it would make any difference. I am trying to come up with a creative solution that gives her the app she wants for her students while protecting the privacy she wishes for some of her content. What are your thoughts?

    Read the article

  • What is the current state of apple device (iPhone, iPod, etc.) support?

    - by BullfrogBlues
    What ubuntu applications provide support? (guides, how to's, status) Also, specifically, details on support for syncing music to iPhone's and iPod's with the latest OS version, as of writing iOS 5: Can you sync music to apple devices using iOS5? (iPhone & iPod) What applications allow you to do this and how? (guides, how to's, status) What has already been established is: Apple does not support Linux and has no plans to. libimobiledevice seems to provide some support but does not support syncing music with devices using iOS5. (I can't test libmobiledevice with anything other iOS5, so I can't provide details on how that works)

    Read the article

  • What is the difference between installing Ubuntu on a USB device and a laptop hardisk? [duplicate]

    - by Max
    This question already has an answer here: Difference between LiveCD, LiveUSB, full-install, and persistence? 1 answer Now, I have a laptop with Windows 8. For various reasons, I want to install Ubuntu that I can carry with me on the various PCs I work with. The same installation so that I don't have to constantly take care of installing new things and dependencies. Can I do a full installation of Ubuntu in a USB? Can I install softwares and other things in the USB itself so that I can boot it anywhere I want? What is the difference of this installation from full installation on a laptop harddisk? What features will and will not work with the USB option? Thanks!

    Read the article

  • How Can I Retrieve Deleted Text From a CDMA Device?

    There is a variety of different situations that many individuals all around the world have found themselves in that are perfect reasons for contacting a professional expert that knows how to recover ... [Author: Ed Opperman - Computers and Internet - May 19, 2010]

    Read the article

  • Question on PL/SQL - Evaluate the PL/SQL block given above and determine the data type and value of each of the following variables [closed]

    - by Annie
    DECLARE v_custid NUMBER(4) := 1600; v_custname VARCHAR2(300) := 'Women Sports Club'; v_ new_custid NUMBER(3) := 500; BEGIN DECLARE v_custid NUMBER(4) := 0; v_custname VARCHAR2(300) := 'Shape up Sports Club'; v_new_custid NUMBER(3) := 300; v_new_custname VARCHAR2(300) := 'Jansports Club'; BEGIN v_custid := v_new_custid; v_custname := v_custname || ' ' || v_new_custname; END; v_custid := (v_custid *12) / 10; END; /

    Read the article

  • How do I convert Data::Dumper output back into a Perl data structure?

    - by newbee_me
    Hi all! I was wondering if you could shed some lights regarding the code I've been doing for a couple of days. I've been trying to convert a Perl-parsed hash back to XML using the XMLout() and XMLin() method and it has been quite successful with this format. #!/usr/bin/perl -w use strict; # use module use IO::File; use XML::Simple; use XML::Dumper; use Data::Dumper; my $dump = new XML::Dumper; my ( $data, $VAR1 ); Topology:$VAR1 = { 'device' => { 'FOC1047Z2SZ' => { 'ChassisID' => '2009-09', 'Error' => undef, 'Group' => { 'ID' => 'A1', 'Type' => 'Base' }, 'Model' => 'CATALYST', 'Name' => 'CISCO-SW1', 'Neighbor' => {}, 'ProbedIP' => 'TEST', 'isDerived' => 0 } }, 'issues' => [ 'TEST' ] }; # create object my $xml = new XML::Simple (NoAttr=>1, RootName=>'data', SuppressEmpty => 'true'); # convert Perl array ref into XML document $data = $xml->XMLout($VAR1); #reads an XML file my $X_out = $xml->XMLin($data); # access XML data print Dumper($data); print "STATUS: $X_out->{issues}\n"; print "CHASSIS ID: $X_out->{device}{ChassisID}\n"; print "GROUP ID: $X_out->{device}{Group}{ID}\n"; print "DEVICE NAME: $X_out->{device}{Name}\n"; print "DEVICE NAME: $X_out->{device}{name}\n"; print "ERROR: $X_out->{device}{error}\n"; I can access all the element in the XML with no problem. But when I try to create a file that will house the parsed hash, problem arises because I can't seem to access all the XML elements. I guess, I wasn't able to unparse the file with the following code. #!/usr/bin/perl -w use strict; #!/usr/bin/perl # use module use IO::File; use XML::Simple; use XML::Dumper; use Data::Dumper; my $dump = new XML::Dumper; my ( $data, $VAR1, $line_Holder ); #this is the file that contains the parsed hash my $saveOut = "C:/parsed_hash.txt"; my $result_Holder = IO::File->new($saveOut, 'r'); while ($line_Holder = $result_Holder->getline){ print $line_Holder; } # create object my $xml = new XML::Simple (NoAttr=>1, RootName=>'data', SuppressEmpty => 'true'); # convert Perl array ref into XML document $data = $xml->XMLout($line_Holder); #reads an XML file my $X_out = $xml->XMLin($data); # access XML data print Dumper($data); print "STATUS: $X_out->{issues}\n"; print "CHASSIS ID: $X_out->{device}{ChassisID}\n"; print "GROUP ID: $X_out->{device}{Group}{ID}\n"; print "DEVICE NAME: $X_out->{device}{Name}\n"; print "DEVICE NAME: $X_out->{device}{name}\n"; print "ERROR: $X_out->{device}{error}\n"; Do you have any idea how I could access the $VAR1 inside the text file? Regards, newbee_me

    Read the article

  • e2fsck / resize2fs problems

    - by BlakBat
    I've got 6 drives (each 1.5T, all same model and firmware revision) that are part of a RAID5 array. The RAID5 makes a LVM volume group and a logical group. The latter contains only one ext3 partition. I've recently ran: e2fsck -f /dev/vg03/lv01 && resize2fs -M /dev/vg03/lv01 which exited without an error. Now when I try to mount /dev/vg03/lv01 I get: EXT3-fs error (device dm-0): ext3_check_descriptors: Block bitmap for group 30533 not in group (block 1000532368)! EXT3-fs: group descriptors corrupted! How do I get out of this predicament? This is all the info I can currently give you: fdisk -l /dev/sd[cdefgh] shows (correctly) that they are "Linux raid autodetect" but fdisk now shows: fdisk -l /dev/md0 Disk /dev/md0: 7501.5 GB, 7501495664640 bytes ... Disk identifier: 0x00000000 Disk /dev/md0 doesn't contain a valid partition table (instead of a LVM type partition) fdisk -l /dev/vg03/lv01 Disk /dev/vg03/lv01: 7501.5 GB, 7501491732480 bytes ... Disk identifier: 0x00000000 Disk /dev/vg03/lv01 doesn't contain a valid partition table (instead of a ext3 type partition) I've tried: e2fsck -fy /dev/vg03/lv01 e2fsck 1.41.12 (17-May-2010) e2fsck: Group descriptors look bad... trying backup blocks... Block bitmap for group 30533 is not in group. (block 1000532368) Relocate? yes Inode bitmap for group 30533 is not in group. (block 1000532369) Relocate? yes Pass 1: Checking inodes, blocks, and sizes Relocating group 30533's block bitmap to 1000524246... Error allocating 1 contiguous block(s) in block group 30533 for inode bitmap: Could not allocate block in ext2 filesystem e2fsck: aborted Extra information I can give you: cat /proc/mdstat Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md0 : active (auto-read-only) raid5 sdg1[0] sdh1[5] sdf1[4] sde1[3] sdc1[2] sdd1[1] 7325679360 blocks level 5, 128k chunk, algorithm 2 [6/6] [UUUUUU] bitmap: 1/175 pages [4KB], 4096KB chunk unused devices: Lastly, all smartctl tests (short and extendend) showed no errors on any of the disks. Should I try to resize2fs to grow /dev/vg03/lv01 and redo a e2fsck ? Should I cfdisk /dev/md0 and /dev/vg03/lv01 back to their real types? Thanks in advance for all and any help. 2011-09-20 UPDATE I issued the following commands and was able to remount the partition, but by viewing the size (df) of before and after, it seems that 1Tb of data have gone missing. By checking the MD5SUMS (from an old backup) of some files with the "same" files from the remounted partition, some errors have been detected. Commands issued to remount the partition were: dumpe2fs /dev/vg03/lv01 Block count: 1000491435<br /> Block size: 4096<br /> tune2fs -O ^has_journal /dev/vg03/lv01 resize2fs -p /dev/vg03/lv01 dumpe2fs /dev/vg03/lv01 Block count: 1831418880<br /> Block size: 4096<br /> mount -o ro,noatime /dev/vg03/lv01 /mnt/raid OK... but files have been damaged / gone missing.

    Read the article

  • volume group disappeared after xfs_check run

    - by John P
    EDIT** I have a volume group consisting of 5 RAID1 devices grouped together into a lvm and formatted with xfs. The 5th RAID device lost its RAID config (cat /proc/mdstat does not show anything). The two drives are still present (sdj and sdk), but they have no partitions. The LVM appeared to be happily using sdj up until recently. (doing a pvscan showed the first 4 RAID1 devices + /dev/sdj) I removed the LVM from the fstab, rebooted, then ran xfs_check on the LV. It ran for about half an hour, then stopped with an error. I tried rebooting again, and this time when it came up, the logical volume was no longer there. It is now looking for /dev/md5, which is gone (though it had been using /dev/sdj earlier). /dev/sdj was having read errors, but after replacing the SATA cable, those went away, so the drive appears to be fine for now. Can I modify the /etc/lvm/backup/dedvol, change the device to /dev/sdj and do a vgcfgrestore? I could try doing a pvcreate --uuid KZron2-pPTr-ZYeQ-PKXX-4Woq-6aNc-AG4rRJ /dev/sdj to make it recognize it, but I'm afraid that would erase the data on the drive UPDATE: just changing the pv to point to /dev/sdj did not work vgcfgrestore --file /etc/lvm/backup/dedvol dedvol Couldn't find device with uuid 'KZron2-pPTr-ZYeQ-PKXX-4Woq-6aNc-AG4rRJ'. Cannot restore Volume Group dedvol with 1 PVs marked as missing. Restore failed. pvscan /dev/sdj: read failed after 0 of 4096 at 0: Input/output error Couldn't find device with uuid 'KZron2-pPTr-ZYeQ-PKXX-4Woq-6aNc-AG4rRJ'. Couldn't find device with uuid 'KZron2-pPTr-ZYeQ-PKXX-4Woq-6aNc-AG4rRJ'. Couldn't find device with uuid 'KZron2-pPTr-ZYeQ-PKXX-4Woq-6aNc-AG4rRJ'. Couldn't find device with uuid 'KZron2-pPTr-ZYeQ-PKXX-4Woq-6aNc-AG4rRJ'. PV /dev/sdd2 VG VolGroup00 lvm2 [74.41 GB / 0 free] PV /dev/md2 VG dedvol lvm2 [931.51 GB / 0 free] PV /dev/md3 VG dedvol lvm2 [931.51 GB / 0 free] PV /dev/md0 VG dedvol lvm2 [931.51 GB / 0 free] PV /dev/md4 VG dedvol lvm2 [931.51 GB / 0 free] PV unknown device VG dedvol lvm2 [1.82 TB / 63.05 GB free] Total: 6 [5.53 TB] / in use: 6 [5.53 TB] / in no VG: 0 [0 ] vgscan Reading all physical volumes. This may take a while... /dev/sdj: read failed after 0 of 4096 at 0: Input/output error /dev/sdj: read failed after 0 of 4096 at 2000398843904: Input/output error Found volume group "VolGroup00" using metadata type lvm2 Found volume group "dedvol" using metadata type lvm2 vgdisplay dedvol --- Volume group --- VG Name dedvol System ID Format lvm2 Metadata Areas 5 Metadata Sequence No 10 VG Access read/write VG Status resizable MAX LV 0 Cur LV 1 Open LV 0 Max PV 0 Cur PV 5 Act PV 5 VG Size 5.46 TB PE Size 4.00 MB Total PE 1430796 Alloc PE / Size 1414656 / 5.40 TB Free PE / Size 16140 / 63.05 GB VG UUID o1U6Ll-5WH8-Pv7Z-Rtc4-1qYp-oiWA-cPD246 dedvol { id = "o1U6Ll-5WH8-Pv7Z-Rtc4-1qYp-oiWA-cPD246" seqno = 10 status = ["RESIZEABLE", "READ", "WRITE"] flags = [] extent_size = 8192 # 4 Megabytes max_lv = 0 max_pv = 0 physical_volumes { pv0 { id = "Msiee7-Zovu-VSJ3-Y2hR-uBVd-6PaT-Ho9v95" device = "/dev/md2" # Hint only status = ["ALLOCATABLE"] flags = [] dev_size = 1953519872 # 931.511 Gigabytes pe_start = 384 pe_count = 238466 # 931.508 Gigabytes } pv1 { id = "ZittCN-0x6L-cOsW-v1v4-atVN-fEWF-e3lqUe" device = "/dev/md3" # Hint only status = ["ALLOCATABLE"] flags = [] dev_size = 1953519872 # 931.511 Gigabytes pe_start = 384 pe_count = 238466 # 931.508 Gigabytes } pv2 { id = "NRNo0w-kgGr-dUxA-mWnl-bU5v-Wld0-XeKVLD" device = "/dev/md0" # Hint only status = ["ALLOCATABLE"] flags = [] dev_size = 1953519872 # 931.511 Gigabytes pe_start = 384 pe_count = 238466 # 931.508 Gigabytes } pv3 { id = "2EfLFr-JcRe-MusW-mfAs-WCct-u4iV-W0pmG3" device = "/dev/md4" # Hint only status = ["ALLOCATABLE"] flags = [] dev_size = 1953519872 # 931.511 Gigabytes pe_start = 384 pe_count = 238466 # 931.508 Gigabytes } pv4 { id = "KZron2-pPTr-ZYeQ-PKXX-4Woq-6aNc-AG4rRJ" device = "/dev/md5" # Hint only status = ["ALLOCATABLE"] flags = [] dev_size = 3907028992 # 1.81935 Terabytes pe_start = 384 pe_count = 476932 # 1.81935 Terabytes } }

    Read the article

  • Windows cannot access the specified device, path, or file.

    - by Pia
    I have recently installed Windows XP Pro SP2. Whenevr I try to run any .exe file I get the following error: Windows cannot access the specified device, path, or file. You may not have the appropriate permissions to access the item. I read some where that if we right click on the file and in Properties-Security click the unblock option, this problem is solved but this is not working for me as I dont get Security tab in Properties.Please help!! Due to this I am not able to install any software in my computer

    Read the article

  • how to find a good wireless PowerPoint controller device?

    - by Reid
    I'm looking for a wireless gadget to advance PowerPoint slides, and would also work with Keynote or whatever on a Mac. Sub-questions: (a) What are these things called, so I can search for them. (b) What is a reasonable price point - the cheap ones seem to be under $20, and name brand seem to be $40 or $50. Do the cheap no-name devices work? (c) Specific device recommendations. Many thanks, Reid

    Read the article

  • Does Gigabit degrade all ports to 100 megabit if there is a 100 megabit device attached?

    - by hjoelr
    Our company is buying some HP Procurve managed gigabit switches to replace some of our core switches. However, we aren't able to upgrade all of our switches from 100Mb to Gigabit switches. I think I know the answer but I'm not exactly sure. If we plug those 100Mb switches (or even a 100Mb device) into those Gigabit switches, will the performance of the entire switch drop to 100Mb or will just that one port work at 100Mb?

    Read the article

  • How to install non Microsoft USB device driver on PC without admin rights?

    - by Ron
    I am running Win 7x32 secured corporate laptop. My USB audio device has .exe installer file which is not possible to execute because of having no admin rights. Is it possible to embed driver files in the system without installation? All attempts of unpacking the .exe file got failed. 7zip is extracting files without extensions and Universal Extractor says that .exe file is 7zip self extracting archive. Thank you Ron

    Read the article

  • framebuffer not available. How to install the device /dev/fb/0 on Ubuntu?

    - by Aleyna
    I am trying to run an application that uses framebuffer on 2.6.31-14-generic #48-Ubuntu. All need to do is to install a framebuffer device to get rid of the following error. /dev/fb/0: No such file or directory framebuffer not available. FATAL: no framebuffer available I googled through and found some resources indicating to do that on Grub2 I got nothing though I followed them seamlessly. Any ideas? Thanks

    Read the article

  • If I uninstall Bonjour and Apple Mobile Device Support will transferring songs to my ipod via itunes

    - by Kate
    I am one of those people who hate to have even one unnecessary program installed. I noticed when I downloaded and installed itunes two other components were installed and shows up in my control panel Uninstall programs screen: "Bonjour" and "Apple Mobile Device Support". Are these two necessary for itunes to work? I never buy songs via itunes, just use the program to transfer smp3s to my ipod.

    Read the article

< Previous Page | 89 90 91 92 93 94 95 96 97 98 99 100  | Next Page >