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• Un espace de revue de code a ouvert ses portes dans la rubrique Qt, venez participer

  Bonjour à tous, Suite à une certaine demande après le défi, il nous a semblé utile d'organiser quelque peu une revue de code Qt. En deux mots, de quoi s'agit-il ? Des développeurs plus expérimentés lisent le code d'autres développeurs et le commentent : ceci aurait été mieux d'une autre manière, ce commentaire ne veut rien dire, ce pavé de code devrait être réécrit, etc. Des remarques sur le fond et la forme du code, sur son organisation, les patrons de conception utilisés, les concepts inhérents à Qt et/ou au C++ mal compris ou mal appliqués, etc. L'objectif est de confronter les opinions sur un code pour qu'au final tout le monde y gagne. Pour l'organisation, autant faire simple : pour ceux qui souhaitent une revue de code, créez un ...

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• Top X tips to code & debug efficiently [closed]

  - by user1510230

  I'm starting a big Java project and I wanted to have some advices that could benefit us all. What are the X (X could be 5 / 10 / ... or even 100 :) most important tips to code and debug efficiently in general (and in particular with java / javascript) ? I'll start with some basic ones : Use functions everytime a portion of code is used more than twice. Try not to code features with more than 15 lines of code in one shot. Rather write 5 lines of code then check if they work correctly then write 5 more... and so on start with the outcome of the function and then code it backwards (bottom-top approach) ... Thanks everybody

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• Where to find GUI code

  - by muffinz

  I've been rummaging through Unity's source code (Shell Interface) and I was a little curious about something; where in the code are you supposed to find positional code? I'll clarify a bit with some examples. How do you find in the code what tells the Launcher to sit on the left side of the screen? Where in the code does it tell the "Session" button on the panel (top) to sit at the very right of the screen? I guess my real question is how do I find this out for myself? I've looked through a big portion of the source code and can't find anything related to the actual position of these items, only their sub-items like text-align. Any guidance on this would be much appreciated.

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• PL/SQL pre-compile and Code Quality checks in an automatted build environment?

  - by Lars Corneliussen

  We build software using Hudson and Maven. We have C#, java and last, but not least PL/SQL sources (sprocs, packages, DDL, crud) For C# and Java we do unit tests and code analysis, but we don't really know the health of our PL/SQL sources before we actually publish them to the target database. Requirements There are a couple of things we wan't to test in the following priority: Are the sources valid, hence "compilable"? For packages, with respect to a certain database, would they compile? Code Quality: Do we have code flaws like duplicates, too complex methods or other violations to a defined set of rules? Also, the tool must run head-less (commandline, ant, ...) we wan't to do analysis on a partial code base (changed sources only) Tools We did a little research and found the following tools that could potencially help: Cast Application Intelligence Platform (AIP): Seems to be a server that grasps information about "anything". Couldn't find a console version that would export in readable format. Toad for Oracle: The Professional version is said to include something called Xpert validates a set of rules against a code base. Sonar + PL/SQL-Plugin: Uses Toad for Oracle to display code-health the sonar-way. This is for browsing the current state of the code base. Semantic Designs DMSToolkit: Quite general analysis of source code base. Commandline available? Semantic Designs Clones Detector: Detects clones. But also via command line? Fortify Source Code Analyzer: Seems to be focussed on security issues. But maybe it is extensible? more... So far, Toad for Oracle together with Sonar seems to be an elegant solution. But may be we are missing something here? Any ideas? Other products? Experiences? Related Questions on SO: http://stackoverflow.com/questions/531430/any-static-code-analysis-tools-for-stored-procedures http://stackoverflow.com/questions/839707/any-code-quality-tool-for-pl-sql http://stackoverflow.com/questions/956104/is-there-a-static-analysis-tool-for-python-ruby-sql-cobol-perl-and-pl-sql

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• I want tell the VC++ Compiler to compile all code. Can it be done?

  - by KGB

  I am using VS2005 VC++ for unmanaged C++. I have VSTS and am trying to use the code coverage tool to accomplish two things with regards to unit tests: See how much of my referenced code under test is getting executed See how many methods of my code under test (if any) are not unit tested at all Setting up the VSTS code coverage tool (see the link text) and accomplishing task #1 was straightforward. However #2 has been a surprising challenge for me. Here is my test code. class CodeCoverageTarget { public: std::string ThisMethodRuns() { return "Running"; } std::string ThisMethodDoesNotRun() { return "Not Running"; } }; #include <iostream> #include "CodeCoverageTarget.h" using namespace std; int main() { CodeCoverageTarget cct; cout<<cct.ThisMethodRuns()<<endl; } When both methods are defined within the class as above the compiler automatically eliminates the ThisMethodDoesNotRun() from the obj file. If I move it's definition outside the class then it is included in the obj file and the code coverage tool shows it has not been exercised at all. Under most circumstances I want the compiler to do this elimination for me but for the code coverage tool it defeats a significant portion of the value (e.g. finding untested methods). I have tried a number of things to tell the compiler to stop being smart for me and compile everything but I am stumped. It would be nice if the code coverage tool compensated for this (I suppose by scanning the source and matching it up with the linker output) but I didn't find anything to suggest it has a special mode to be turned on. Am I totally missing something simple here or is this not possible with the VC++ compiler + VSTS code coverage tool? Thanks in advance, KGB

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• Can't install graphic drivers in 12.04

  - by yinon

  The driver is ATI/AMD proprietary FGLRX graphics driver. After clicking Activate, it asks for my password and starts downloading. Then it shows an error message: 2012-10-03 16:16:04,227 DEBUG: updating <jockey.detection.LocalKernelModulesDriverDB instance at 0xb7231a0c> 2012-10-03 16:16:06,172 DEBUG: reading modalias file /lib/modules/3.2.0-29-generic-pae/modules.alias 2012-10-03 16:16:06,383 DEBUG: reading modalias file /usr/share/jockey/modaliases/b43 2012-10-03 16:16:06,386 DEBUG: reading modalias file /usr/share/jockey/modaliases/disable-upstream-nvidia 2012-10-03 16:16:06,456 DEBUG: loading custom handler /usr/share/jockey/handlers/pvr-omap4.py 2012-10-03 16:16:06,506 WARNING: modinfo for module omapdrm_pvr failed: ERROR: modinfo: could not find module omapdrm_pvr 2012-10-03 16:16:06,509 DEBUG: Instantiated Handler subclass __builtin__.PVROmap4Driver from name PVROmap4Driver 2012-10-03 16:16:06,682 DEBUG: PowerVR SGX proprietary graphics driver for OMAP 4 not available 2012-10-03 16:16:06,682 DEBUG: loading custom handler /usr/share/jockey/handlers/cdv.py 2012-10-03 16:16:06,727 WARNING: modinfo for module cedarview_gfx failed: ERROR: modinfo: could not find module cedarview_gfx 2012-10-03 16:16:06,728 DEBUG: Instantiated Handler subclass __builtin__.CdvDriver from name CdvDriver 2012-10-03 16:16:06,728 DEBUG: cdv.available: falling back to default 2012-10-03 16:16:06,772 DEBUG: Intel Cedarview graphics driver availability undetermined, adding to pool 2012-10-03 16:16:06,772 DEBUG: loading custom handler /usr/share/jockey/handlers/vmware-client.py 2012-10-03 16:16:06,781 WARNING: modinfo for module vmxnet failed: ERROR: modinfo: could not find module vmxnet 2012-10-03 16:16:06,781 DEBUG: Instantiated Handler subclass __builtin__.VmwareClientHandler from name VmwareClientHandler 2012-10-03 16:16:06,795 DEBUG: VMWare Client Tools availability undetermined, adding to pool 2012-10-03 16:16:06,796 DEBUG: loading custom handler /usr/share/jockey/handlers/fglrx.py 2012-10-03 16:16:06,801 WARNING: modinfo for module fglrx_updates failed: ERROR: modinfo: could not find module fglrx_updates 2012-10-03 16:16:06,805 DEBUG: Instantiated Handler subclass __builtin__.FglrxDriverUpdate from name FglrxDriverUpdate 2012-10-03 16:16:06,805 DEBUG: fglrx.available: falling back to default 2012-10-03 16:16:06,833 DEBUG: ATI/AMD proprietary FGLRX graphics driver (post-release updates) availability undetermined, adding to pool 2012-10-03 16:16:06,836 WARNING: modinfo for module fglrx failed: ERROR: modinfo: could not find module fglrx 2012-10-03 16:16:06,840 DEBUG: Instantiated Handler subclass __builtin__.FglrxDriver from name FglrxDriver 2012-10-03 16:16:06,840 DEBUG: fglrx.available: falling back to default 2012-10-03 16:16:06,873 DEBUG: ATI/AMD proprietary FGLRX graphics driver availability undetermined, adding to pool 2012-10-03 16:16:06,873 DEBUG: loading custom handler /usr/share/jockey/handlers/dvb_usb_firmware.py 2012-10-03 16:16:06,925 DEBUG: Instantiated Handler subclass __builtin__.DvbUsbFirmwareHandler from name DvbUsbFirmwareHandler 2012-10-03 16:16:06,926 DEBUG: Firmware for DVB cards not available 2012-10-03 16:16:06,926 DEBUG: loading custom handler /usr/share/jockey/handlers/nvidia.py 2012-10-03 16:16:06,961 WARNING: modinfo for module nvidia_96 failed: ERROR: modinfo: could not find module nvidia_96 2012-10-03 16:16:06,967 DEBUG: Instantiated Handler subclass __builtin__.NvidiaDriver96 from name NvidiaDriver96 2012-10-03 16:16:06,968 DEBUG: nvidia.available: falling back to default 2012-10-03 16:16:06,980 DEBUG: XorgDriverHandler(nvidia_96, nvidia-96, None): Disabling as package video ABI xorg-video-abi-10 does not match X.org video ABI xorg-video-abi-11 2012-10-03 16:16:06,980 DEBUG: NVIDIA accelerated graphics driver not available 2012-10-03 16:16:06,983 WARNING: modinfo for module nvidia_current failed: ERROR: modinfo: could not find module nvidia_current 2012-10-03 16:16:06,987 DEBUG: Instantiated Handler subclass __builtin__.NvidiaDriverCurrent from name NvidiaDriverCurrent 2012-10-03 16:16:06,987 DEBUG: nvidia.available: falling back to default 2012-10-03 16:16:07,015 DEBUG: NVIDIA accelerated graphics driver availability undetermined, adding to pool 2012-10-03 16:16:07,018 WARNING: modinfo for module nvidia_current_updates failed: ERROR: modinfo: could not find module nvidia_current_updates 2012-10-03 16:16:07,021 DEBUG: Instantiated Handler subclass __builtin__.NvidiaDriverCurrentUpdates from name NvidiaDriverCurrentUpdates 2012-10-03 16:16:07,022 DEBUG: nvidia.available: falling back to default 2012-10-03 16:16:07,066 DEBUG: NVIDIA accelerated graphics driver (post-release updates) availability undetermined, adding to pool 2012-10-03 16:16:07,069 WARNING: modinfo for module nvidia_173_updates failed: ERROR: modinfo: could not find module nvidia_173_updates 2012-10-03 16:16:07,072 DEBUG: Instantiated Handler subclass __builtin__.NvidiaDriver173Updates from name NvidiaDriver173Updates 2012-10-03 16:16:07,073 DEBUG: nvidia.available: falling back to default 2012-10-03 16:16:07,105 DEBUG: NVIDIA accelerated graphics driver (post-release updates) availability undetermined, adding to pool 2012-10-03 16:16:07,112 WARNING: modinfo for module nvidia_173 failed: ERROR: modinfo: could not find module nvidia_173 2012-10-03 16:16:07,118 DEBUG: Instantiated Handler subclass __builtin__.NvidiaDriver173 from name NvidiaDriver173 2012-10-03 16:16:07,119 DEBUG: nvidia.available: falling back to default 2012-10-03 16:16:07,159 DEBUG: NVIDIA accelerated graphics driver availability undetermined, adding to pool 2012-10-03 16:16:07,166 WARNING: modinfo for module nvidia_96_updates failed: ERROR: modinfo: could not find module nvidia_96_updates 2012-10-03 16:16:07,171 DEBUG: Instantiated Handler subclass __builtin__.NvidiaDriver96Updates from name NvidiaDriver96Updates 2012-10-03 16:16:07,171 DEBUG: nvidia.available: falling back to default 2012-10-03 16:16:07,188 DEBUG: XorgDriverHandler(nvidia_96_updates, nvidia-96-updates, None): Disabling as package video ABI xorg-video-abi-10 does not match X.org video ABI xorg-video-abi-11 2012-10-03 16:16:07,188 DEBUG: NVIDIA accelerated graphics driver (post-release updates) not available 2012-10-03 16:16:07,188 DEBUG: loading custom handler /usr/share/jockey/handlers/madwifi.py 2012-10-03 16:16:07,195 WARNING: modinfo for module ath_pci failed: ERROR: modinfo: could not find module ath_pci 2012-10-03 16:16:07,195 DEBUG: Instantiated Handler subclass __builtin__.MadwifiHandler from name MadwifiHandler 2012-10-03 16:16:07,196 DEBUG: Alternate Atheros "madwifi" driver availability undetermined, adding to pool 2012-10-03 16:16:07,196 DEBUG: loading custom handler /usr/share/jockey/handlers/sl_modem.py 2012-10-03 16:16:07,213 DEBUG: Instantiated Handler subclass __builtin__.SlModem from name SlModem 2012-10-03 16:16:07,234 DEBUG: Software modem not available 2012-10-03 16:16:07,234 DEBUG: loading custom handler /usr/share/jockey/handlers/broadcom_wl.py 2012-10-03 16:16:07,239 WARNING: modinfo for module wl failed: ERROR: modinfo: could not find module wl 2012-10-03 16:16:07,277 DEBUG: Instantiated Handler subclass __builtin__.BroadcomWLHandler from name BroadcomWLHandler 2012-10-03 16:16:07,277 DEBUG: Broadcom STA wireless driver availability undetermined, adding to pool 2012-10-03 16:16:07,278 DEBUG: all custom handlers loaded 2012-10-03 16:16:07,278 DEBUG: querying driver db <jockey.detection.LocalKernelModulesDriverDB instance at 0xb7231a0c> about HardwareID('modalias', 'pci:v00008086d000027D8sv00001043sd000082EAbc04sc03i00') 2012-10-03 16:16:07,568 DEBUG: searching handler for driver ID {'driver_type': 'kernel_module', 'kernel_module': 'snd_hda_intel'} 2012-10-03 16:16:07,699 DEBUG: no corresponding handler available for {'driver_type': 'kernel_module', 'kernel_module': 'snd_hda_intel', 'jockey_handler': 'KernelModuleHandler'} 2012-10-03 16:16:07,699 DEBUG: searching handler for driver ID {'driver_type': 'kernel_module', 'kernel_module': 'snd_hda_intel'} 2012-10-03 16:16:07,699 DEBUG: no corresponding handler available for {'driver_type': 'kernel_module', 'kernel_module': 'snd_hda_intel', 'jockey_handler': 'KernelModuleHandler'} 2012-10-03 16:16:07,699 DEBUG: querying driver db <jockey.detection.LocalKernelModulesDriverDB instance at 0xb7231a0c> about HardwareID('modalias', 'input:b0000v0000p0000e0000-e0,5,kramlsfw6,') 2012-10-03 16:16:07,704 DEBUG: searching handler for driver ID {'driver_type': 'kernel_module', 'kernel_module': 'evbug'} 2012-10-03 16:16:07,704 DEBUG: no corresponding handler available for {'driver_type': 'kernel_module', 'kernel_module': 'evbug', 'jockey_handler': 'KernelModuleHandler'} 2012-10-03 16:16:07,704 DEBUG: querying driver db <jockey.detection.LocalKernelModulesDriverDB instance at 0xb7231a0c> about HardwareID('modalias', 'pci:v00008086d000027DAsv00001043sd00008179bc0Csc05i00') 2012-10-03 16:16:07,707 DEBUG: searching handler for driver ID {'driver_type': 'kernel_module', 'kernel_module': 'i2c_i801'} 2012-10-03 16:16:07,707 DEBUG: no corresponding handler available for {'driver_type': 'kernel_module', 'kernel_module': 'i2c_i801', 'jockey_handler': 'KernelModuleHandler'} 2012-10-03 16:16:07,707 DEBUG: querying driver db <jockey.detection.LocalKernelModulesDriverDB instance at 0xb7231a0c> about HardwareID('modalias', 'acpi:PNP0C01:') 2012-10-03 16:16:07,707 DEBUG: querying driver db <jockey.detection.LocalKernelModulesDriverDB instance at 0xb7231a0c> about HardwareID('modalias', 'acpi:PNP0B00:') 2012-10-03 16:16:07,707 DEBUG: querying driver db <jockey.detection.LocalKernelModulesDriverDB instance at 0xb7231a0c> about HardwareID('modalias', 'pci:v00001969d00001026sv00001043sd00008304bc02sc00i00') 2012-10-03 16:16:07,710 DEBUG: searching handler for driver ID {'driver_type': 'kernel_module', 'kernel_module': 'atl1e'} 2012-10-03 16:16:07,710 DEBUG: no corresponding handler available for {'driver_type': 'kernel_module', 'kernel_module': 'atl1e', 'jockey_handler': 'KernelModuleHandler'} 2012-10-03 16:16:07,710 DEBUG: querying driver db <jockey.detection.LocalKernelModulesDriverDB instance at 0xb7231a0c> about HardwareID('modalias', 'input:b0003v04F2p0816e0111-e0,1,4,11,14,k71,72,73,74,75,77,79,7A,7B,7C,7D,7E,7F,80,81,82,83,84,85,86,87,88,89,8A,8C,8E,96,98,9E,9F,A1,A3,A4,A5,A6,AD,B0,B1,B2,B3,B4,B7,B8,B9,BA,BB,BC,BD,BE,BF,C0,C1,C2,F0,ram4,l0,1,2,sfw') 2012-10-03 16:16:07,711 DEBUG: searching handler for driver ID {'driver_type': 'kernel_module', 'kernel_module': 'evbug'} 2012-10-03 16:16:07,711 DEBUG: no corresponding handler available for {'driver_type': 'kernel_module', 'kernel_module': 'evbug', 'jockey_handler': 'KernelModuleHandler'} 2012-10-03 16:16:07,711 DEBUG: searching handler for driver ID {'driver_type': 'kernel_module', 'kernel_module': 'mac_hid'} 2012-10-03 16:16:07,711 DEBUG: no corresponding handler available for {'driver_type': 'kernel_module', 'kernel_module': 'mac_hid', 'jockey_handler': 'KernelModuleHandler'} 2012-10-03 16:16:07,711 DEBUG: querying driver db <jockey.detection.LocalKernelModulesDriverDB instance at 0xb7231a0c> about HardwareID('modalias', 'platform:pcspkr') 2012-10-03 16:16:07,711 DEBUG: searching handler for driver ID {'driver_type': 'kernel_module', 'kernel_module': 'pcspkr'} 2012-10-03 16:16:07,711 DEBUG: no corresponding handler available for {'driver_type': 'kernel_module', 'kernel_module': 'pcspkr', 'jockey_handler': 'KernelModuleHandler'} 2012-10-03 16:16:07,712 DEBUG: searching handler for driver ID {'driver_type': 'kernel_module', 'kernel_module': 'snd_pcsp'} 2012-10-03 16:16:07,712 DEBUG: no corresponding handler available for {'driver_type': 'kernel_module', 'kernel_module': 'snd_pcsp', 'jockey_handler': 'KernelModuleHandler'} 2012-10-03 16:16:07,712 DEBUG: querying driver db <jockey.detection.LocalKernelModulesDriverDB instance at 0xb7231a0c> about HardwareID('modalias', 'usb:v1D6Bp0001d0302dc09dsc00dp00ic09isc00ip00') 2012-10-03 16:16:07,724 DEBUG: querying driver db <jockey.detection.LocalKernelModulesDriverDB instance at 0xb7231a0c> about HardwareID('modalias', 'input:b0019v0000p0001e0000-e0,1,k74,ramlsfw') 2012-10-03 16:16:07,724 DEBUG: searching handler for driver ID {'driver_type': 'kernel_module', 'kernel_module': 'evbug'} 2012-10-03 16:16:07,724 DEBUG: no corresponding handler available for {'driver_type': 'kernel_module', 'kernel_module': 'evbug', 'jockey_handler': 'KernelModuleHandler'} 2012-10-03 16:16:07,724 DEBUG: searching handler for driver ID {'driver_type': 'kernel_module', 'kernel_module': 'mac_hid'} 2012-10-03 16:16:07,724 DEBUG: no corresponding handler available for {'driver_type': 'kernel_module', 'kernel_module': 'mac_hid', 'jockey_handler': 'KernelModuleHandler'} 2012-10-03 16:16:07,724 DEBUG: querying driver db <jockey.detection.LocalKernelModulesDriverDB instance at 0xb7231a0c> about HardwareID('modalias', 'acpi:PNP0C04:') 2012-10-03 16:16:07,724 DEBUG: querying driver db <jockey.detection.LocalKernelModulesDriverDB instance at 0xb7231a0c> about HardwareID('modalias', 'platform:eisa') 2012-10-03 16:16:07,725 DEBUG: querying driver db <jockey.detection.LocalKernelModulesDriverDB instance at 0xb7231a0c> about HardwareID('modalias', 'pci:v00008086d000027CCsv00001043sd00008179bc0Csc03i20') 2012-10-03 16:16:07,728 DEBUG: querying driver db <jockey.detection.LocalKernelModulesDriverDB instance at 0xb7231a0c> about HardwareID('modalias', 'platform:Fixed MDIO bus') 2012-10-03 16:16:07,728 DEBUG: querying driver db <jockey.detection.LocalKernelModulesDriverDB instance at 0xb7231a0c> about HardwareID('modalias', 'pci:v00008086d000029C0sv00001043sd000082B0bc06sc00i00') 2012-10-03 16:16:07,731 DEBUG: querying driver db <jockey.detection.LocalKernelModulesDriverDB instance at 0xb7231a0c> about HardwareID('modalias', 'usb:v045Ep0766d0101dcEFdsc02dp01ic01isc01ip00') 2012-10-03 16:16:07,777 DEBUG: searching handler for driver ID {'driver_type': 'kernel_module', 'kernel_module': 'snd_usb_audio'} 2012-10-03 16:16:07,777 DEBUG: no corresponding handler available for {'driver_type': 'kernel_module', 'kernel_module': 'snd_usb_audio', 'jockey_handler': 'KernelModuleHandler'} 2012-10-03 16:16:07,777 DEBUG: querying driver db <jockey.detection.LocalKernelModulesDriverDB instance at 0xb7231a0c> about HardwareID('modalias', 'acpi:PNP0F03:PNP0F13:') 2012-10-03 16:16:07,777 DEBUG: querying driver db <jockey.detection.LocalKernelModulesDriverDB instance at 0xb7231a0c> about HardwareID('modalias', 'acpi:PNP0000:') 2012-10-03 16:16:07,777 DEBUG: querying driver db <jockey.detection.LocalKernelModulesDriverDB instance at 0xb7231a0c> about HardwareID('modalias', 'pci:v00001002d000095C5sv0000174Bsd0000E400bc03sc00i00') 2012-10-03 16:16:08,072 DEBUG: searching handler for driver ID {'driver_type': 'kernel_module', 'kernel_module': 'fglrx_updates', 'package': 'fglrx-updates'} 2012-10-03 16:16:08,133 DEBUG: fglrx.enabled(fglrx_updates): target_alt None current_alt /usr/lib/i386-linux-gnu/mesa/ld.so.conf other target alt None other current alt None 2012-10-03 16:16:08,134 DEBUG: fglrx_updates is not the alternative in use 2012-10-03 16:16:08,072 DEBUG: found match in handler pool xorg:fglrx_updates([FglrxDriverUpdate, nonfree, disabled] ATI/AMD proprietary FGLRX graphics driver (post-release updates)) 2012-10-03 16:16:08,136 WARNING: modinfo for module fglrx_updates failed: ERROR: modinfo: could not find module fglrx_updates 2012-10-03 16:16:08,147 DEBUG: fglrx.available: falling back to default 2012-10-03 16:16:08,173 DEBUG: fglrx.enabled(fglrx_updates): target_alt None current_alt /usr/lib/i386-linux-gnu/mesa/ld.so.conf other target alt None other current alt None 2012-10-03 16:16:08,173 DEBUG: fglrx_updates is not the alternative in use 2012-10-03 16:16:08,162 DEBUG: got handler xorg:fglrx_updates([FglrxDriverUpdate, nonfree, disabled] ATI/AMD proprietary FGLRX graphics driver (post-release updates)) 2012-10-03 16:16:08,173 DEBUG: searching handler for driver ID {'driver_type': 'kernel_module', 'kernel_module': 'fglrx', 'package': 'fglrx'} 2012-10-03 16:16:08,184 DEBUG: fglrx.enabled(fglrx): target_alt None current_alt /usr/lib/i386-linux-gnu/mesa/ld.so.conf other target alt None other current alt None 2012-10-03 16:16:08,184 DEBUG: fglrx is not the alternative in use 2012-10-03 16:16:08,173 DEBUG: found match in handler pool xorg:fglrx([FglrxDriver, nonfree, disabled] ATI/AMD proprietary FGLRX graphics driver) 2012-10-03 16:16:08,187 WARNING: modinfo for module fglrx failed: ERROR: modinfo: could not find module fglrx 2012-10-03 16:16:08,190 DEBUG: fglrx.available: falling back to default 2012-10-03 16:16:08,216 DEBUG: fglrx.enabled(fglrx): target_alt None current_alt /usr/lib/i386-linux-gnu/mesa/ld.so.conf other target alt None other current alt None . . . 2012-10-03 16:18:10,552 DEBUG: install progress initramfs-tools 62.500000 2012-10-03 16:18:22,249 DEBUG: install progress libc-bin 62.500000 2012-10-03 16:18:23,251 DEBUG: Selecting previously unselected package dkms. (Reading database ... 142496 files and directories currently installed.) Unpacking dkms (from .../dkms_2.2.0.3-1ubuntu3_all.deb) ... Selecting previously unselected package fakeroot. Unpacking fakeroot (from .../fakeroot_1.18.2-1_i386.deb) ... Selecting previously unselected package fglrx-updates. Unpacking fglrx-updates (from .../fglrx-updates_2%3a8.960-0ubuntu1.1_i386.deb) ... Selecting previously unselected package fglrx-amdcccle-updates. Unpacking fglrx-amdcccle-updates (from .../fglrx-amdcccle-updates_2%3a8.960-0ubuntu1.1_i386.deb) ... Processing triggers for man-db ... Processing triggers for ureadahead ... ureadahead will be reprofiled on next reboot dpkg: error processing libxss1 (--configure): package libxss1 is already installed and configured dpkg: error processing chromium-codecs-ffmpeg (--configure): package chromium-codecs-ffmpeg is already installed and configured dpkg: error processing chromium-browser (--configure): package chromium-browser is already installed and configured dpkg: error processing chromium-browser-l10n (--configure): package chromium-browser-l10n is already installed and configured Setting up dkms (2.2.0.3-1ubuntu3) ... No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already Setting up fakeroot (1.18.2-1) ... update-alternatives: using /usr/bin/fakeroot-sysv to provide /usr/bin/fakeroot (fakeroot) in auto mode. Setting up fglrx-updates (2:8.960-0ubuntu1.1) ... update-alternatives: using /usr/lib/fglrx/ld.so.conf to provide /etc/ld.so.conf.d/i386-linux-gnu_GL.conf (i386-linux-gnu_gl_conf) in auto mode. update-alternatives: warning: skip creation of /etc/OpenCL/vendors/amdocl64.icd because associated file /usr/lib/fglrx/etc/OpenCL/vendors/amdocl64.icd (of link group i386-linux-gnu_gl_conf) doesn't exist. update-alternatives: warning: skip creation of /usr/lib32/libaticalcl.so because associated file /usr/lib32/fglrx/libaticalcl.so (of link group i386-linux-gnu_gl_conf) doesn't exist. update-alternatives: warning: skip creation of /usr/lib32/libaticalrt.so because associated file /usr/lib32/fglrx/libaticalrt.so (of link group i386-linux-gnu_gl_conf) doesn't exist. update-alternatives: using /usr/lib/fglrx/alt_ld.so.conf to provide /etc/ld.so.conf.d/x86_64-linux-gnu_GL.conf (x86_64-linux-gnu_gl_conf) in auto mode. update-initramfs: deferring update (trigger activated) Loading new fglrx-updates-8.960 DKMS files... First Installation: checking all kernels... Building only for 3.2.0-29-generic-pae Building for architecture i686 Building initial module for 3.2.0-29-generic-pae Done. fglrx_updates: Running module version sanity check. - Original module - No original module exists within this kernel - Installation - Installing to /lib/modules/3.2.0-29-generic-pae/updates/dkms/ depmod...... DKMS: install completed. update-initramfs: deferring update (trigger activated) Processing triggers for bamfdaemon ... Rebuilding /usr/share/applications/bamf.index... Setting up fglrx-amdcccle-updates (2:8.960-0ubuntu1.1) ... Processing triggers for initramfs-tools ... update-initramfs: Generating /boot/initrd.img-3.2.0-29-generic-pae Processing triggers for libc-bin ... ldconfig deferred processing now taking place Errors were encountered while processing: libxss1 chromium-codecs-ffmpeg chromium-browser chromium-browser-l10n Error in function: SystemError: E:Sub-process /usr/bin/dpkg returned an error code (1) 2012-10-03 16:18:23,256 ERROR: Package failed to install: Selecting previously unselected package dkms. (Reading database ... 142496 files and directories currently installed.) Unpacking dkms (from .../dkms_2.2.0.3-1ubuntu3_all.deb) ... Selecting previously unselected package fakeroot. Unpacking fakeroot (from .../fakeroot_1.18.2-1_i386.deb) ... Selecting previously unselected package fglrx-updates. Unpacking fglrx-updates (from .../fglrx-updates_2%3a8.960-0ubuntu1.1_i386.deb) ... Selecting previously unselected package fglrx-amdcccle-updates. Unpacking fglrx-amdcccle-updates (from .../fglrx-amdcccle-updates_2%3a8.960-0ubuntu1.1_i386.deb) ... Processing triggers for man-db ... Processing triggers for ureadahead ... ureadahead will be reprofiled on next reboot dpkg: error processing libxss1 (--configure): package libxss1 is already installed and configured dpkg: error processing chromium-codecs-ffmpeg (--configure): package chromium-codecs-ffmpeg is already installed and configured dpkg: error processing chromium-browser (--configure): package chromium-browser is already installed and configured dpkg: error processing chromium-browser-l10n (--configure): package chromium-browser-l10n is already installed and configured Setting up dkms (2.2.0.3-1ubuntu3) ... No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already Setting up fakeroot (1.18.2-1) ... update-alternatives: using /usr/bin/fakeroot-sysv to provide /usr/bin/fakeroot (fakeroot) in auto mode. Setting up fglrx-updates (2:8.960-0ubuntu1.1) ... update-alternatives: using /usr/lib/fglrx/ld.so.conf to provide /etc/ld.so.conf.d/i386-linux-gnu_GL.conf (i386-linux-gnu_gl_conf) in auto mode. update-alternatives: warning: skip creation of /etc/OpenCL/vendors/amdocl64.icd because associated file /usr/lib/fglrx/etc/OpenCL/vendors/amdocl64.icd (of link group i386-linux-gnu_gl_conf) doesn't exist. update-alternatives: warning: skip creation of /usr/lib32/libaticalcl.so because associated file /usr/lib32/fglrx/libaticalcl.so (of link group i386-linux-gnu_gl_conf) doesn't exist. update-alternatives: warning: skip creation of /usr/lib32/libaticalrt.so because associated file /usr/lib32/fglrx/libaticalrt.so (of link group i386-linux-gnu_gl_conf) doesn't exist. update-alternatives: using /usr/lib/fglrx/alt_ld.so.conf to provide /etc/ld.so.conf.d/x86_64-linux-gnu_GL.conf (x86_64-linux-gnu_gl_conf) in auto mode. update-initramfs: deferring update (trigger activated) Loading new fglrx-updates-8.960 DKMS files... First Installation: checking all kernels... Building only for 3.2.0-29-generic-pae Building for architecture i686 Building initial module for 3.2.0-29-generic-pae Done. fglrx_updates: Running module version sanity check. - Original module - No original module exists within this kernel - Installation - Installing to /lib/modules/3.2.0-29-generic-pae/updates/dkms/ depmod...... DKMS: install completed. update-initramfs: deferring update (trigger activated) Processing triggers for bamfdaemon ... Rebuilding /usr/share/applications/bamf.index... Setting up fglrx-amdcccle-updates (2:8.960-0ubuntu1.1) ... Processing triggers for initramfs-tools ... update-initramfs: Generating /boot/initrd.img-3.2.0-29-generic-pae Processing triggers for libc-bin ... ldconfig deferred processing now taking place Errors were encountered while processing: libxss1 chromium-codecs-ffmpeg chromium-browser chromium-browser-l10n Error in function: SystemError: E:Sub-process /usr/bin/dpkg returned an error code (1) 2012-10-03 16:18:23,590 WARNING: /sys/module/fglrx_updates/drivers does not exist, cannot rebind fglrx_updates driver 2012-10-03 16:18:43,601 DEBUG: fglrx.enabled(fglrx_updates): target_alt None current_alt /usr/lib/fglrx/ld.so.conf other target alt None other current alt /usr/lib/fglrx/alt_ld.so.conf 2012-10-03 16:18:43,601 DEBUG: fglrx_updates is not the alternative in use 2012-10-03 16:18:43,617 DEBUG: fglrx.enabled(fglrx_updates): target_alt None current_alt /usr/lib/fglrx/ld.so.conf other target alt None other current alt /usr/lib/fglrx/alt_ld.so.conf 2012-10-03 16:18:43,617 DEBUG: fglrx_updates is not the alternative in use 2012-10-03 16:18:54,143 DEBUG: fglrx.enabled(fglrx_updates): target_alt None current_alt /usr/lib/fglrx/ld.so.conf other target alt None other current alt /usr/lib/fglrx/alt_ld.so.conf 2012-10-03 16:18:54,144 DEBUG: fglrx_updates is not the alternative in use 2012-10-03 16:18:54,154 DEBUG: fglrx.enabled(fglrx_updates): target_alt None current_alt /usr/lib/fglrx/ld.so.conf other target alt None other current alt /usr/lib/fglrx/alt_ld.so.conf 2012-10-03 16:18:54,154 DEBUG: fglrx_updates is not the alternative in use 2012-10-03 16:18:54,182 DEBUG: fglrx.enabled(fglrx): target_alt /usr/lib/fglrx/ld.so.conf current_alt /usr/lib/fglrx/ld.so.conf other target alt /usr/lib/fglrx/alt_ld.so.conf other current alt /usr/lib/fglrx/alt_ld.so.conf 2012-10-03 16:18:54,182 DEBUG: XorgDriverHandler(%s, %s).enabled(): No X.org driver set, not checking 2012-10-03 16:18:54,215 DEBUG: fglrx.enabled(fglrx_updates): target_alt None current_alt /usr/lib/fglrx/ld.so.conf other target alt None other current alt /usr/lib/fglrx/alt_ld.so.conf 2012-10-03 16:18:54,215 DEBUG: fglrx_updates is not the alternative in use 2012-10-03 16:18:54,229 DEBUG: fglrx.enabled(fglrx_updates): target_alt None current_alt /usr/lib/fglrx/ld.so.conf other target alt None other current alt /usr/lib/fglrx/alt_ld.so.conf 2012-10-03 16:18:54,229 DEBUG: fglrx_updates is not the alternative in use 2012-10-03 16:18:54,268 DEBUG: fglrx.enabled(fglrx_updates): target_alt None current_alt /usr/lib/fglrx/ld.so.conf other target alt None other current alt /usr/lib/fglrx/alt_ld.so.conf 2012-10-03 16:18:54,268 DEBUG: fglrx_updates is not the alternative in use 2012-10-03 16:18:54,279 DEBUG: fglrx.enabled(fglrx_updates): target_alt None current_alt /usr/lib/fglrx/ld.so.conf other target alt None other current alt /usr/lib/fglrx/alt_ld.so.conf 2012-10-03 16:18:54,279 DEBUG: fglrx_updates is not the alternative in use 2012-10-03 16:18:54,298 DEBUG: fglrx.enabled(fglrx): target_alt /usr/lib/fglrx/ld.so.conf current_alt /usr/lib/fglrx/ld.so.conf other target alt /usr/lib/fglrx/alt_ld.so.conf other current alt /usr/lib/fglrx/alt_ld.so.conf 2012-10-03 16:18:54,298 DEBUG: XorgDriverHandler(%s, %s).enabled(): No X.org driver set, not checking 2012-10-03 16:18:57,828 DEBUG: Shutting down I don't know how to troubleshoot from looking at the log file, could somebody assist me with this please? You can download the log file at: https://www.dropbox.com/s/a59d2hyabo02q5z/jockey.log

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• Are there any good resources for developing Entity Framework 4 code-first?

  - by KallDrexx

  I am trying to convert my model-first project to code-first, as I can see dealing with the models with the graphical designer will become hard. Unfortunately, with all my googling I can't find one good reference that describes how to do code-first development. Most resources are out of date (so out of date they refer to it as code-only), and the other references I can find seem to assume you understand the basics of context building and code-first (for example, they reference code to build contexts but don't describe where that code should actually go, and how it's actually run). Are there any decent resources for code-first development, that describe how to map your POCO entities into a database schema?

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• What should be done first: Code reviews or Unit tests?

  - by goldenmean

  Hello, If a developer implements code for some module and wants to get it reviewed. What should be the order : *First unit test the module after designing test cases for the module, debugging and fixing the bugs and then give the modified code for peer code review (Pros- Code to be reviewed is 'clean' to a good extent. Reduces some avoidable review comments and rework. Cons- Developer might spend large time debugging/fixing a bug which could have pointed/anticipated in peer code reviews) Or *First do the code review with peers and then go for unit testing. What are your thoughts/experience on this? I believe this approach for unit testing, code reviewing should be programming language agnostic, but it would be interesting to know otherwise(if applicable) with specific examples. -AD

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• What books help one to learn to read code?

  - by Daniel

  Lion's Commentary on Unix Sixth Edition with Source Code is a wonderful book to learn how to read code. Reading code is important -- how does one learn how to write excellent code without having read excellent code? But, sadly, while great writers, of fiction and non-fiction, all spend a great deal of time reading stuff, we, programmers, seem to avoid it like the plague. Worse still, programming books usually go the same way. They might show a pattern or a style, but they often avoid showing good, complex code, and helping one go through it. There are exceptions, of course. I hope. So, with that in mind, what books are to be found which help one learn how to read code?

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• Using the StopWatch class to calculate the execution time of a block of code

  - by vik20000in

    Many of the times while doing the performance tuning of some, class, webpage, component, control etc. we first measure the current time taken in the execution of that code. This helps in understanding the location in code which is actually causing the performance issue and also help in measuring the amount of improvement by making the changes. This measurement is very important as it helps us understand the problem in code, Helps us to write better code next time (as we have already learnt what kind of improvement can be made with different code) . Normally developers create 2 objects of the DateTime class. The exact time is collected before and after the code where the performance needs to be measured.  Next the difference between the two objects is used to know about the time spent in the code that is measured. Below is an example of the sample code.             DateTime dt1, dt2;             dt1 = DateTime.Now;             for (int i = 0; i < 1000000; i++)             {                 string str = "string";             }             dt2 = DateTime.Now;             TimeSpan ts = dt2.Subtract(dt1);             Console.WriteLine("Time Spent : " + ts.TotalMilliseconds.ToString());   The above code works great. But the dot net framework also provides for another way to capture the time spent on the code without doing much effort (creating 2 datetime object, timespan object etc..). We can use the inbuilt StopWatch class to get the exact time spent. Below is an example of the same work with the help of the StopWatch class.             Stopwatch sw = Stopwatch.StartNew();             for (int i = 0; i < 1000000; i++)             {                 string str = "string";             }             sw.Stop();             Console.WriteLine("Time Spent : " +sw.Elapsed.TotalMilliseconds.ToString());   [Note the StopWatch class resides in the System.Diagnostics namespace] If you use the StopWatch class the time taken for measuring the performance is much better, with very little effort. Vikram

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• Managing common code on Windows 7 (.NET) and Windows 8 (WinRT)

  - by ryanabr

  Recent announcements regarding Windows Phone 8 and the fact that it will have the WinRT behind it might make some of this less painful but I  discovered the "XmlDocument" object is in a new location in WinRT and is almost the same as it's brother in .NET System.Xml.XmlDocument (.NET) Windows.Data.Xml.Dom.XmlDocument (WinRT) The problem I am trying to solve is how to work with both types in the code that performs the same task on both Windows Phone 7 and Windows 8 platforms. The first thing I did was define my own XmlNode and XmlNodeList classes that wrap the actual Microsoft objects so that by using the "#if" compiler directive either work with the WinRT version of the type, or the .NET version from the calling code easily. public class XmlNode     { #if WIN8         public Windows.Data.Xml.Dom.IXmlNode Node { get; set; }         public XmlNode(Windows.Data.Xml.Dom.IXmlNode xmlNode)         {             Node = xmlNode;         } #endif #if !WIN8 public System.Xml.XmlNode Node { get; set ; } public XmlNode(System.Xml.XmlNode xmlNode)         {             Node = xmlNode;         } #endif     } public class XmlNodeList     { #if WIN8         public Windows.Data.Xml.Dom.XmlNodeList List { get; set; }         public int Count {get {return (int)List.Count;}}         public XmlNodeList(Windows.Data.Xml.Dom.XmlNodeList list)         {             List = list;         } #endif #if !WIN8 public System.Xml.XmlNodeList List { get; set ; } public int Count { get { return List.Count;}} public XmlNodeList(System.Xml.XmlNodeList list)         {             List = list;        } #endif     } From there I can then use my XmlNode and XmlNodeList in the calling code with out having to clutter the code with all of the additional #if switches. The challenge after this was the code that worked directly with the XMLDocument object needed to be seperate on both platforms since the method for populating the XmlDocument object is completly different on both platforms. To solve this issue. I made partial classes, one partial class for .NET and one for WinRT. Both projects have Links to the Partial Class that contains the code that is the same for the majority of the class, and the partial class contains the code that is unique to the version of the XmlDocument. The files with the little arrow in the lower left corner denotes 'linked files' and are shared in multiple projects but only exist in one location in source control. You can see that the _Win7 partial class is included directly in the project since it include code that is only for the .NET platform, where as it's cousin the _Win8 (not pictured above) has all of the code specific to the _Win8 platform. In the _Win7 partial class is this code: public partial class WUndergroundViewModel     { public static WUndergroundData GetWeatherData( double lat, double lng)         { WUndergroundData data = new WUndergroundData();             System.Net. WebClient c = new System.Net. WebClient(); string req = "http://api.wunderground.com/api/xxx/yesterday/conditions/forecast/q/[LAT],[LNG].xml" ;             req = req.Replace( "[LAT]" , lat.ToString());             req = req.Replace( "[LNG]" , lng.ToString()); XmlDocument doc = new XmlDocument();             doc.Load(c.OpenRead(req)); foreach (XmlNode item in doc.SelectNodes("/response/features/feature" ))             { switch (item.Node.InnerText)                 { case "yesterday" :                         ParseForecast( new FishingControls.XmlNodeList (doc.SelectNodes( "/response/forecast/txt_forecast/forecastdays/forecastday" )), new FishingControls.XmlNodeList (doc.SelectNodes( "/response/forecast/simpleforecast/forecastdays/forecastday" )), data); break ; case "conditions" :                         ParseCurrent( new FishingControls.XmlNode (doc.SelectSingleNode("/response/current_observation" )), data); break ; case "forecast" :                         ParseYesterday( new FishingControls.XmlNodeList (doc.SelectNodes( "/response/history/observations/observation" )),data); break ;                 }             } return data;         }     } in _win8 partial class is this code: public partial class WUndergroundViewModel     { public async static Task< WUndergroundData > GetWeatherData(double lat, double lng)         { WUndergroundData data = new WUndergroundData (); HttpClient c = new HttpClient (); string req = "http://api.wunderground.com/api/xxxx/yesterday/conditions/forecast/q/[LAT],[LNG].xml" ;             req = req.Replace( "[LAT]" , lat.ToString());             req = req.Replace( "[LNG]" , lng.ToString()); HttpResponseMessage msg = await c.GetAsync(req); string stream = await msg.Content.ReadAsStringAsync(); XmlDocument doc = new XmlDocument ();             doc.LoadXml(stream, null); foreach ( IXmlNode item in doc.SelectNodes("/response/features/feature" ))             { switch (item.InnerText)                 { case "yesterday" :                         ParseForecast( new FishingControls.XmlNodeList (doc.SelectNodes( "/response/forecast/txt_forecast/forecastdays/forecastday" )), new FishingControls.XmlNodeList (doc.SelectNodes( "/response/forecast/simpleforecast/forecastdays/forecastday" )), data); break; case "conditions" :                         ParseCurrent( new FishingControls.XmlNode (doc.SelectSingleNode("/response/current_observation" )), data); break; case "forecast" :                         ParseYesterday( new FishingControls.XmlNodeList (doc.SelectNodes( "/response/history/observations/observation")), data); break;                 }             } return data;         }     } Summary: This method allows me to have common 'business' code for both platforms that is pretty clean, and I manage the technology differences separately. Thank you tostringtheory for your suggestion, I was considering that approach.

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• How do I disable window move with alt + left mouse button in GNOME Shell?

  - by artfulrobot

  There are lots of posts on this about Unity, this is about gnome-shell As with other posters, I use apps (Inkscape in particular) that uses Alt-Click and Alt-drag. Gnome-shell is grabbing this off me and thus disabling features in the application. I have tried using ccsm's Move plugin - you can turn this off and you still get Alt-drag window moving. using gconf editor to change /apps/metacity/general/mouse_button_modifier - this has no effect AFAICS. It's really hindering me. Otherwise I find gnome-shell a really productive environment.

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• C# 5 Async, Part 3: Preparing Existing code For Await

  - by Reed

  While the Visual Studio Async CTP provides a fantastic model for asynchronous programming, it requires code to be implemented in terms of Task and Task<T>.  The CTP adds support for Task-based asynchrony to the .NET Framework methods, and promises to have these implemented directly in the framework in the future.  However, existing code outside the framework will need to be converted to using the Task class prior to being usable via the CTP. Wrapping existing asynchronous code into a Task or Task<T> is, thankfully, fairly straightforward.  There are two main approaches to this. Code written using the Asynchronous Programming Model (APM) is very easy to convert to using Task<T>.  The TaskFactory class provides the tools to directly convert APM code into a method returning a Task<T>.  This is done via the FromAsync method.  This method takes the BeginOperation and EndOperation methods, as well as any parameters and state objects as arguments, and returns a Task<T> directly. For example, we could easily convert the WebRequest BeginGetResponse and EndGetResponse methods into a method which returns a Task<WebResponse> via: Task<WebResponse> task = Task.Factory .FromAsync<WebResponse>( request.BeginGetResponse, request.EndGetResponse, null); .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } Event-based Asynchronous Pattern (EAP) code can also be wrapped into a Task<T>, though this requires a bit more effort than the one line of code above.  This is handled via the TaskCompletionSource<T> class.  MSDN provides a detailed example of using this to wrap an EAP operation into a method returning Task<T>.  It demonstrates handling cancellation and exception handling as well as the basic operation of the asynchronous method itself. The basic form of this operation is typically: Task<YourResult> GetResultAsync() { var tcs = new TaskCompletionSource<YourResult>(); // Handle the event, and setup the task results... this.GetResultCompleted += (o,e) => { if (e.Error != null) tcs.TrySetException(e.Error); else if (e.Cancelled) tcs.TrySetCanceled(); else tcs.TrySetResult(e.Result); }; // Call the asynchronous method this.GetResult(); // Return the task from the TaskCompletionSource return tcs.Task; } We can easily use these methods to wrap our own code into a method that returns a Task<T>.  Existing libraries which cannot be edited can be extended via Extension methods.  The CTP uses this technique to add appropriate methods throughout the framework. The suggested naming for these methods is to define these methods as “Task<YourResult> YourClass.YourOperationAsync(…)”.  However, this naming often conflicts with the default naming of the EAP.  If this is the case, the CTP has standardized on using “Task<YourResult> YourClass.YourOperationTaskAsync(…)”. Once we’ve wrapped all of our existing code into operations that return Task<T>, we can begin investigating how the Async CTP can be used with our own code.

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• How do I get alt-tab to cycle through all open windows on GNOME Classic?

  - by Baltazar

  I am using Ubuntu 11.10 with "Gnome classic (no effects)" at login. Using alt+tab cycles between windows on current desktop. How can I set it to cycle through ALL open windows? Well, I have done as proposed, here is what happened: when I pressed Alt+Tab, it still showed only window icons from current desktop. Furthermore, I could only switch between the two most recently used windows with a single Tab press. Releasing the Tab and pressing again closed the window chooser. Another try after logout-login gave another result: pressing Alt+Tab just showed the main menu. More ideas are welcome.

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• Space in img:s "ALT" attribute good/bad for search engines?

  - by Camran

  I am trying to make it easier for search engines to crawl my website, as it is almost 100% dynamic. I have a couple of transparent images which are actually links to sections of my page. I wonder, if I add an "alt" attribute containing space characters to explain the target, will this improve SE rankings etc? For example: <img src="blabla.png" alt="post new classified"> Or will this just result in errors? Ànd, what should I put in the alt attribute if I can't use space? PS: Another different and short question, will javascript-rich content make a page less important to crawlers? Thanks

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• How to send Ctrl+Alt+F1 to window (to switch terminal remotely, not locally)?

  - by Vi

  when I press Ctrl+Alt+F{1..12}, it switches me to other virtual terminal. When I have VNC/rdesktop client (and there it is VMWare/Virtualbox with other Linux) I want to switch virtual terminal remotely, but just pressing Ctrl+Alt+F1 switches things locally. VirtualBox/VMWare often provides special means to send Ctrl+Alt+Del, but not Ctrl+Alt+F1. (I already know that I can log in over ssh and chvt)

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• Gnome-shell freezes. What to do to keep apps open, like "alt+f2 r" when GS works

  - by user94592

  This is a repost, because no one had popper solution. What to do when gnome-shell freezes? Everything works correctly (music is still playing etc.), just the gui freezes. I am able to ctrl+alt+f1. What can I do after logging in the ctrl+alt+f1 terminal, in order to restore gnome-shell? If gnome-shell worked, I'd just hit alt+f2 and run r. I usually end up sudo rebooting which I don't like, because I have to reopen apps.

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• How to use wget to grab copy of Google Code site documents?

  - by Alex Reynolds

  I have a Google Code project which has a lot of wiki'ed documentation. I would like to create a copy of this documentation for offline browsing. I would like to use wget or a similar utility. I have tried the following: $ wget --no-parent \ --recursive \ --page-requisites \ --html-extension \ --base="http://code.google.com/p/myProject/" \ "http://code.google.com/p/myProject/" The problem is that links from within the mirrored copy have links like: file:///p/myProject/documentName This renaming of links in this way causes 404 (not found) errors, since the links point to nowhere valid on the filesystem. What options should I use instead with wget, so that I can make a local copy of the site's documentation and other pages?

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• Entity Framework Code-First to Provide Replacement for ASP.NET Profile Provider

  - by Ken Cox [MVP]

  A while back, I coordinated a project to add support for the SQL Table Profile Provider in ASP.NET 4 Web Applications.  We urged Microsoft to improve ASP.NET’s built-in Profile support so our workaround wouldn’t be necessary. Instead, Microsoft plans to provide a replacement for ASP.NET Profile in a forthcoming release. In response to my feature suggestion on Connect, Microsoft says we should look for something even better using Entity Framework: “When code-first is officially released the final piece of a full replacement of the ASP.NET Profile will have arrived. Once code-first for EF4 is released, developers will have a really easy and very approachable way to create any arbitrary class, and automatically have the .NET Framework create a table to provide storage for that class. Furthermore developer will also have full LINQ-query capabilities against code-first classes. “ The downside is that there won’t be a way to retrofit this Profile replacement to pre- ASP.NET 4 Web applications. At least there’ll still be the MVP workaround code. It looks like it’s time for me to dig into a CTP of EF Code-First to see what’s available.   Scott Guthrie has been blogging about Code-First Development with Entity Framework 4. It’s not clear when the EF Code-First is coming, but my guess is that it’ll be part of the VS 2010/.NET 4 service pack.

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• Deprecated Methods in Code Base

  - by Jamie Taylor

  A lot of the code I've been working on recently, both professionally (read: at work) and in other spheres (read: at home, for friends/family/etc, or NOT FOR WORK), has been worked on, redesigned and re-implemented several times - where possible/required. This has been in an effort to make things smaller, faster more efficient, better and closer to spec (when requirements have changed). A down side to this is that I now have several code bases that have deprecated method blocks (and in some places small objects). I'm looking at making this code maintainable and easy to roll back on changes. I'm already using version control software in both instances, but I'm left wondering if there are any specific techniques that have been used by others for keeping the superseded methods without increasing the size of compiled outputs? At the minute, I'm simply wrapping the old code in C style multi line comments. Here's an example of what I mean (C style, psuedo-code): void main () { //Do some work //Foo(); //Deprecated method call Bar(); //New method } /***** Deprecated code ***** /// Summary of Method void Foo() { //Do some work } ***** Deprecated Code *****/ /// Summary of method void Bar() { //Do some work } I've added a C style example, simply because I'm more confident with the C style languages. I'm trying to put this question across as language agnostic (hence the tag), and would prefer language agnostic answers, if possible - since I see this question as more of a techniques and design question. I'd like to keep the old methods and blocks for a bunch of reasons, chief amongst them being the ability to quickly restore an older working method in the case of some tests failing, or some unforeseen circumstance. Is there a better way to do this (that multi line comments)? Are there any tools that will allow me to store these old methods in separate files? Is that even a good idea?

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• C# 5.0 Async/Await Demo Code

  - by Paulo Morgado

  I’ve published the sample code I use to demonstrate the use of async/await in C# 5.0. You can find it here. Projects PauloMorgado.AyncDemo.WebServer This project is a simple web server implemented as a console application using Microsoft ASP.NET Web API self hosting and serves an image (with a delay) that is accessed by the other projects. This project has a dependency on Json.NET due to the fact the the Microsoft ASP.NET Web API hosting has a dependency on Json.NET. The application must be run on a command prompt with administrative privileges or a urlacl must be added to allow the use of the following command: netsh http add urlacl url=http://+:9090/ user=machine\username To remove the urlacl, just use the following command: netsh http delete urlacl url=http://+:9090/ PauloMorgado.AsyncDemo.WindowsForms This Windows Forms project contains three regions that must be uncommented one at a time: Sync with WebClient This code retrieves the image through a synchronous call using the WebClient class. Async with WebClient This code retrieves the image through an asynchronous call using the WebClient class. Async with HttpClient with cancelation This code retrieves the image through an asynchronous call with cancelation using the HttpClient class. PauloMorgado.AsyncDemo.Wpf This WPF project contains three regions that must be uncommented one at a time: Sync with WebClient This code retrieves the image through a synchronous call using the WebClient class. Async with WebClient This code retrieves the image through an asynchronous call using the WebClient class. Async with HttpClient with cancelation This code retrieves the image through an asynchronous call with cancelation using the HttpClient class.

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• Is there an alternative to Google Code Search?

  - by blunders

  Per the Official Google Blog: Code Search, which was designed to help people search for open source code all over the web, will be shut down along with the Code Search API on January 15, 2012. Google Code Search is now gone, and since that makes it much harder to understand the features it presented, here's my attempt to render them via information I gathered from a cache of the page for the Search Options: The "In Search Box" just notes the syntax to type the command directly in the main search box instead of using the advance search interface. Package (In Search Box: "package:linux-2.6") Language (In Search Box: "lang:c++") (OPTIONS: any language, actionscript, ada, applescript, asp, assembly, autoconf, automake, awk, basic, bat, c, c#, c++, caja, cobol, coldfusion, configure, css, d, eiffel, erlang, fortran, go, haskell, inform, java, java, javascript, jsp, lex, limbo, lisp, lolcode, lua, m4, makefile, maple, mathematica, matlab, messagecatalog, modula2, modula3, objectivec, ocaml, pascal, perl, php, pod, prolog, proto, python, python, r, rebol, ruby, sas, scheme, scilab, sgml, shell, smalltalk, sml, sql, svg, tcl, tex, texinfo, troff, verilog, vhdl, vim, xslt, xul, yacc) File (In Search Box: "file:^.*.java$") Class (In Search Box: "class:HashMap") Function (In Search Box: "function:toString") License (In Search Box: "license:mozilla") (OPTIONS: null/any-license, aladdin/Aladdin-Public-License, artistic/Artistic-License, apache/Apache-License, apple/Apple-Public-Source-License, bsd/BSD-License, cpl/Common-Public-License, epl/Eclipse-Public-License, agpl/GNU-Affero-General-Public-License, gpl/GNU-General-Public-License, lgpl/GNU-Lesser-General-Public-License, disclaimer/Historical-Permission-Notice-and-Disclaimer, ibm/IBM-Public-License, lucent/Lucent-Public-License, mit/MIT-License, mozilla/Mozilla-Public-License, nasa/NASA-Open-Source-Agreement, python/Python-Software-Foundation-License, qpl/Q-Public-License, sleepycat/Sleepycat-License, zope/Zope-Public-License) Case Sensitive (In Search Box: "case:no") (OPTIONS: yes, no) Also of use in understanding the search tool would be the still live FAQs page for Google Code Search. Is there any code search engine that would fully replace Google Code Search's features?

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• Is there a measure of code rot?

  - by DarenW

  I'm dealing, again, with a messy C++ application, tons of classes with confusing names, objects have pointers into each other and all over, longwinded Boost and STL data types, etc. (Pause and consider your favorite terror of messy legacy code. We probably have it.) The phrase "code rot" oft comes to mind when I work on this project. Is there a quantitative way to measure code rot? I wouldn't expect anything highly meaningful or scientific, since no other measure of code productivity or quality is so fine. I'm not looking for a mere opposite of measures of code quality, but specifically a measure of how many bad things happened after a series of maintenance software "engineers" have had turns hacking at the code. A general measure applying to any language, or many languages, would be great. If there's no such thing, at least for C++, which is a better than average language for creating messes. Maybe something involving a measure of topology of how objects connect during runtime, a count of chunks of commented out code, how mane files a typical variable's usage is scattered over, I don't know... but surely now, a decade into the 21st Century, someone has attempted to define some sort of rot measure. It would be especially interesting to automate a series of svn checkouts, measure the "rottenosity" of each, and plot the decay over time.

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• As a solo programmer, of what use can Gerrit be?

  - by s.d

  Disclaimer: I'm aware of the questions How do I review my own code? and What advantages do continuous integration tools offer on a solo project?. I do feel that this question aims at a different set of answers though, as it is about a specific software, and not about general musings about the use of this or that practice or tech stack. I'm a solo programmer for an Eclipse RCP-based project. To be able to control myself and the quality of my software, I'm in the process of setting up a CSI stack. In this, I follow the Eclipse Common Build Infrastructure guidelines, with the exception that I will use Jenkins rather than Hudson. Sticking to these guidelines will hopefully help me in getting used to the Eclipse way of doing things, and I hope to be able to contribute some code to Eclipse in the future. However, CBI includes Gerrit, a code review software. While I think it's really helpful for teams, and I will employ it as soon as the team grows to at least two developers, I'm wondering how I could use it while I'm still solo. Question: Is there a use case for Gerrit that takes into account solo developers? Notes: I can imagine reviewing code myself after a certain amount of time to gain a little distance to it. This does complicate the workflow though, as code will only be built once it's been passed through code review. This might prove to be a "trap" as I might be tempted to quickly push bad code through Gerrit just to get it built. I'm very interested in hearing how other solo devs have made use of Gerrit.

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• Smarty: Configurable Comments and Code Templates

  - by Martin Fousek

  Hello, today we would like to show you few improvements we have prepared in PHP Smarty Framework for NetBeans 7.3. So let's talk about adjustable toggle comment action and code templates. Configurable Comments As some of you requested we implemented toggle comment action with adjustable behavior. In NetBeans 7.3 you can choose in Options between commenting as a "Smarty comments everywhere" or "Language sensitive comments" in Smarty Templates. Toggle comment language sensitive: Toggle comment as Smarty comment everywhere: Code Templates In NetBeans 7.3 we will provide by default many code templates inside Smarty templates or directly inside Smarty tags. Available should be code templates for all built-in or custom functions and modifiers of Smarty 3.x. Besides that you should be able to define additional custom templates easily in Options -> Editor -> Code Templates for "Smarty Templates" or directly for "Smarty Markup" (which means code templates inside Smarty tag). You can also take advantage of selection's template which are able to wrap your code with chosen Smarty tag. That's all for today. As always, please test it and report all the issues or enhancements you find in NetBeans BugZilla (component php, subcomponent Smarty).

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