Search Results

Search found 71360 results on 2855 pages for 'file operations'.

Page 110/2855 | < Previous Page | 106 107 108 109 110 111 112 113 114 115 116 117  | Next Page >

  • How to test if a user has SELECTED a file to upload ?

    - by Tristan
    Hello, on a page, i have : if (!empty($_FILES['logo']['name'])) { $dossier = 'upload/'; $fichier = basename($_FILES['logo']['name']); $taille_maxi = 100000; $taille = filesize($_FILES['logo']['tmp_name']); $extensions = array('.png', '.jpg', '.jpeg'); $extension = strrchr($_FILES['logo']['name'], '.'); if(!in_array($extension, $extensions)) { $erreur = 'ERROR you must upload the right type'; } if($taille>$taille_maxi) { $erreur = 'too heavy'; } if(!empty($erreur)) { ....................... } The problem is, if the users wants to edit information WITHOUT uploading a LOGO, it raises an error : 'error you must upload the right type' So, if a user didn't put anything in the inputbox in order to upload it, i don't want to enter in these conditions test. i tested : if (!empty($_FILES['logo']['name']) and if (isset($_FILES['logo']['name']) but both doesn't seems to work. Any ideas? edit : maybe i wasn't so clear, i don't want to test if he uploaded a logo, i want to test IF he selected a file to upload, because right now, if he doesn't select a file to upload, php raises an error telling he must upload with the right format. thanks.

    Read the article

  • How can you determine the file size in JavaScript?

    - by Daniel Lew
    I help moderate a forum online, and on this forum we restrict the size of signatures. At the moment we test this via a simple Greasemonkey script I wrote; we wrap all signatures with a <div>, the script looks for them, and then measures the div's height and width. All the script does right now is make sure the signature resides in a particular height/width. I would like to start measuring the file size of the images inside of a signature automatically so that the script can automatically flag users who are including huge images in their signature. However, I can't seem to find a way to measure the size of images loaded on the page. I've searched and found a property special to IE (element.fileSize) but I obviously can't use that in my Greasemonkey script. Is there a way to find out the file size of an image in Firefox via JavaScript? Edit: People are misinterpreting the problem. The forums themselves do not host images; we host the BBCode that people enter as their signature. So, for example, people enter this: This is my signature, check out my [url=http://google.com]awesome website[/url]! This image is cool! [img]http://image.gif[/img] I want to be able to check on these images via Greasemonkey. I could write a batch script to scan all of these instead, but I'm just wondering if there's a way to augment my current script.

    Read the article

  • Android while getting HTTP response to file how to know it wasn't fully loaded?

    - by Stan
    I'm using this approach to store a big-sized response from server to parse it later: final HttpClient client = new DefaultHttpClient(new BasicHttpParams()); final HttpGet mHttpGetRequest = new HttpGet(strUrl); mHttpGetRequest.setHeader("Content-Type", "application/x-www-form-urlencoded"); FileOutputStream fos = null; try { final HttpResponse response = client.execute(mHttpGetRequest); final StatusLine statusLine = response.getStatusLine(); lastHttpErrorCode = statusLine.getStatusCode(); lastHttpErrorMsg = statusLine.getReasonPhrase(); if (lastHttpErrorCode == 200) { HttpEntity entity = response.getEntity(); fos = new FileOutputStream(reponseFile); entity.writeTo(fos); entity.consumeContent(); fos.flush(); } } catch (ClientProtocolException e) { e.printStackTrace(); lastHttpErrorMsg = e.toString(); return null; } catch (final ParseException e) { e.printStackTrace(); lastHttpErrorMsg = e.toString(); return null; } catch (final UnknownHostException e) { e.printStackTrace(); lastHttpErrorMsg = e.toString(); return null; } catch (IOException e) { e.printStackTrace(); lastHttpErrorMsg = e.toString(); } finally{ if (fos!=null) try{ fos.close(); } catch (IOException e){} } now how could I ensure the response was completely received and thus saved to file? Assume client's device lost Internet connection while this code was running. So the app received only some part of real response. And I'm pretty sure it happens cuz I got parsing exceptions like "tag not closed", "unexpected end of file" etc. So I need to detect somehow this situation to prevent code from parsing partial response but can't see how. Is it possible at all and how to do it? Or has it has to raise IOException in such cases?

    Read the article

  • WiX major upgrade refuses to replace existing file!

    - by Joshua
    Hello! I have inherited this project with a WiX installer, and am required to make this version usefully upgrade the previous one! My problem comes in replacing the database files with new versions. No, the problem is not that they are locked, I can replace them manually, and in fact now ONE of them is replaced, while the other is not. Please, please tell me what I'm doing wrong here. I've tried several other solutions (including registry keys as KeyPath instead of CompanionFile) but nothing is quite working. Here is (most of) the code of the .WXS file: <Product Id='$(var.ProductCode)' UpgradeCode='$(var.UpgradeCode)' Name="Pathways" Version='$(var.ProductVersion)' Manufacturer='$(var.Manufacturer)' Language='1033'> <Package Id="*" Description="Pathways Directory Software" InstallerVersion="301" Compressed="yes" /> <WixVariable Id="WixUILicenseRtf" Value="License.rtf" /> <Media Id="1" Cabinet="Pathways.cab" EmbedCab="yes" /> <Upgrade Id="$(var.UpgradeCode)"> <UpgradeVersion OnlyDetect="no" Maximum="$(var.ProductVersion)" IncludeMaximum="no" Language="1033" Property="OLDAPPFOUND" /> <UpgradeVersion Minimum="$(var.ProductVersion)" IncludeMinimum="yes" OnlyDetect="no" Language="1033" Property="NEWAPPFOUND" /> </Upgrade> <Property Id="ALLUSERS">2</Property> <!-- directories --> <Directory Id="TARGETDIR" Name="SourceDir"> <!-- program files directory --> <Directory Id="ProgramFilesFolder"> <Directory Id="INSTALLDIR" Name="Pathways"/> </Directory> <!-- application data directory --> <Directory Id="CommonAppDataFolder" Name="CommonAppData"> <Directory Id="CommonAppDataPathways" Name="Pathways" /> </Directory> <!-- start menu program directory --> <Directory Id="ProgramMenuFolder"> <Directory Id="ProgramsMenuPathwaysFolder" Name="Pathways" /> </Directory> <!-- desktop directory --> <Directory Id="DesktopFolder" /> </Directory> <Icon Id="PathwaysIcon" SourceFile="\\Fileserver\Release\Pathways\Latest\Release\Pathways.exe" /> <!-- components in the reference to the install directory --> <DirectoryRef Id="INSTALLDIR"> <Component Id="Application" Guid="EEE4EB55-A515-4872-A4A5-06D6AB4A06A6"> <File Id="pathwaysExe" Name="Pathways.exe" DiskId="1" Source="\\Fileserver\Release\Pathways\Latest\Release\Pathways.exe" Vital="yes" KeyPath="yes" Assembly=".net" AssemblyApplication="pathwaysExe" AssemblyManifest="pathwaysExe"> <!--<netfx:NativeImage Id="ngen_Pathways.exe" Platform="32bit" Priority="2"/> --> </File> <File Id="pathwaysChm" Name="Pathways.chm" DiskId="1" Source="\\fileserver\Release\Pathways\Dependencies\Pathways.chm" /> <File Id="publicKeyXml" ShortName="RSAPUBLI.XML" Name="RSAPublicKey.xml" DiskId="1" Source="\\fileserver\Release\Pathways\Dependencies\RSAPublicKey.xml" Vital="yes" /> <File Id="staticListsXml" ShortName="STATICLI.XML" Name="StaticLists.xml" DiskId="1" Source="\\fileserver\Release\Pathways\Dependencies\StaticLists.xml" Vital="yes" /> <File Id="axInteropMapPointDll" ShortName="AXMPOINT.DLL" Name="AxInterop.MapPoint.dll" DiskId="1" Source="\\fileserver\Release\Pathways\Dependencies\AxInterop.MapPoint.dll" Vital="yes" /> <File Id="interopMapPointDll" ShortName="INMPOINT.DLL" Name="Interop.MapPoint.dll" DiskId="1" Source="\\fileserver\Release\Pathways\Dependencies\Interop.MapPoint.dll" Vital="yes" /> <File Id="mapPointDll" ShortName="MAPPOINT.DLL" Name="MapPoint.dll" DiskId="1" Source="\\fileserver\Release\Pathways\Dependencies\Interop.MapPoint.dll" Vital="yes" /> <File Id="devExpressData63Dll" ShortName="DAAT63.DLL" Name="DevExpress.Data.v6.3.dll" DiskId="1" Source="\\fileserver\Release\Pathways\Dependencies\DevExpress.Data.v6.3.dll" Vital="yes" /> <File Id="devExpressUtils63Dll" ShortName="UTILS63.DLL" Name="DevExpress.Utils.v6.3.dll" DiskId="1" Source="\\fileserver\Release\Pathways\Dependencies\DevExpress.Utils.v6.3.dll" Vital="yes" /> <File Id="devExpressXtraBars63Dll" ShortName="BARS63.DLL" Name="DevExpress.XtraBars.v6.3.dll" DiskId="1" Source="\\fileserver\Release\Pathways\Dependencies\DevExpress.XtraBars.v6.3.dll" Vital="yes" /> <File Id="devExpressXtraNavBar63Dll" ShortName="NAVBAR63.DLL" Name="DevExpress.XtraNavBar.v6.3.dll" DiskId="1" Source="\\fileserver\Release\Pathways\Dependencies\DevExpress.XtraNavBar.v6.3.dll" Vital="yes" /> <File Id="devExpressXtraCharts63Dll" ShortName="CHARTS63.DLL" Name="DevExpress.XtraCharts.v6.3.dll" DiskId="1" Source="\\fileserver\Release\Pathways\Dependencies\DevExpress.XtraCharts.v6.3.dll" Vital="yes" /> <File Id="devExpressXtraEditors63Dll" ShortName="EDITOR63.DLL" Name="DevExpress.XtraEditors.v6.3.dll" DiskId="1" Source="\\fileserver\Release\Pathways\Dependencies\DevExpress.XtraEditors.v6.3.dll" Vital="yes" /> <File Id="devExpressXtraPrinting63Dll" ShortName="PRINT63.DLL" Name="DevExpress.XtraPrinting.v6.3.dll" DiskId="1" Source="\\fileserver\Release\Pathways\Dependencies\DevExpress.XtraPrinting.v6.3.dll" Vital="yes" /> <File Id="devExpressXtraReports63Dll" ShortName="REPORT63.DLL" Name="DevExpress.XtraReports.v6.3.dll" DiskId="1" Source="\\fileserver\Release\Pathways\Dependencies\DevExpress.XtraReports.v6.3.dll" Vital="yes" /> <File Id="devExpressXtraRichTextEdit63Dll" ShortName="RICHTE63.DLL" Name="DevExpress.XtraRichTextEdit.v6.3.dll" DiskId="1" Source="\\fileserver\Release\Pathways\Dependencies\DevExpress.XtraRichTextEdit.v6.3.dll" Vital="yes" /> <RegistryValue Id="PathwaysInstallDir" Root="HKLM" Key="Software\Tribal Data Resources\Pathways" Name="InstallDir" Action="write" Type="string" Value="[INSTALLDIR]" /> </Component> </DirectoryRef> <!-- application data components --> <DirectoryRef Id="CommonAppDataPathways"> <Component Id="CommonAppDataPathwaysFolderComponent" Guid="087C6F14-E87E-4B57-A7FA-C03FC8488E0D"> <CreateFolder> <Permission User="Everyone" GenericAll="yes" /> </CreateFolder> <RemoveFolder Id="CommonAppDataPathways" On="uninstall" /> <!-- <RegistryValue Root="HKCU" Key="Software\TDR\Pathways" Name="installed" Type="integer" Value="1" KeyPath="yes" />--> </Component> <Component Id="Settings" Guid="A3513208-4F12-4496-B609-197812B4A953" NeverOverwrite="yes"> <File Id="settingsXml" KeyPath="yes" ShortName="SETTINGS.XML" Name="Settings.xml" DiskId="1" Source="\\fileserver\Release\Pathways\Dependencies\Settings\settings.xml" Vital="yes" /> </Component> <Component Id="Database" Guid="1D8756EF-FD6C-49BC-8400-299492E8C65D" > <!-- <RegistryValue Root="HKLM" Key="Software\TDR\Pathways\Database" Name="installed" Type="integer" Value="1" KeyPath="yes" /> --> <File Id="pathwaysMdf" Name="Pathways.mdf" DiskId="1" Source="\\fileserver\Shared\Databases\Pathways\SystemDBs\Pathways.mdf" CompanionFile="pathwaysExe" Vital="yes"/> <File Id="pathwaysLdf" Name="Pathways_log.ldf" DiskId="1" Source="\\fileserver\Shared\Databases\Pathways\SystemDBs\Pathways.ldf" CompanionFile="pathwaysExe" Vital="yes"/> </Component> <!-- <Component Id="MDF" Guid="FFB7CE02-B592-4c44-A315-99CF4828E3D9" > <File Id="pathwaysMdf" KeyPath="yes" Name="Pathways.mdf" DiskId="1" Source="\\fileserver\Shared\Databases\Pathways\SystemDBs\Pathways.mdf" /> </Component> <Component Id="LDF" Guid="9E4E3DCA-A067-47f4-9905-4AD5C35A8025" > <File Id="pathwaysLdf" KeyPath="yes" Name="Pathways_log.ldf" DiskId="1" Source="\\fileserver\Shared\Databases\Pathways\SystemDBs\Pathways.ldf" /> </Component> --> </DirectoryRef> <!-- shortcut components --> <DirectoryRef Id="DesktopFolder"> <Component Id="DesktopShortcutComponent" Guid="1BF412BA-9C6B-460D-80ED-8388AC66703F"> <Shortcut Id="DesktopShortcut" Target="[INSTALLDIR]Pathways.exe" Name="Pathways" Description="Pathways Tribal Directory" Icon="PathwaysIcon" Show="normal" WorkingDirectory="INSTALLDIR" /> <RegistryValue Root="HKCU" Key="Software\TDR\Pathways" Name="installed" Type="integer" Value="1" KeyPath="yes"/> </Component> </DirectoryRef> <DirectoryRef Id ="ProgramsMenuPathwaysFolder"> <Component Id="ProgramsMenuShortcutComponent" Guid="83A18245-4C22-4CDC-94E0-B480F80A407D"> <Shortcut Id="ProgramsMenuShortcut" Target="[INSTALLDIR]Pathways.exe" Name="Pathways" Icon="PathwaysIcon" Show="normal" WorkingDirectory="INSTALLDIR" /> <RemoveFolder Id="ProgramsMenuPathwaysFolder" On="uninstall"/> <RegistryValue Root="HKCU" Key="Software\TDR\Pathways" Name="installed" Type="integer" Value="1" KeyPath="yes"/> </Component> </DirectoryRef> <Feature Id="App" Title="Pathways Application" Level="1" Description="Pathways software" Display="expand" ConfigurableDirectory="INSTALLDIR" Absent="disallow" AllowAdvertise="no" InstallDefault="local"> <ComponentRef Id="Application" /> <ComponentRef Id="CommonAppDataPathwaysFolderComponent" /> <ComponentRef Id="Settings"/> <ComponentRef Id="ProgramsMenuShortcutComponent" /> <Feature Id="Shortcuts" Title="Desktop Shortcut" Level="1" Absent="allow" AllowAdvertise="no" InstallDefault="local"> <ComponentRef Id="DesktopShortcutComponent" /> </Feature> </Feature> <Feature Id="Data" Title="Database" Level="1" Absent="allow" AllowAdvertise="no" InstallDefault="local"> <ComponentRef Id="Database" /> </Feature> <UIRef Id ="WixUI_FeatureTree"/> <UIRef Id="WixUI_ErrorProgressText"/> <UI> <Error Id="2000">There is a later version of this program installed.</Error> </UI> <CustomAction Id="NewerVersionDetected" Error="2000" /> <InstallExecuteSequence> <RemoveExistingProducts After="InstallFinalize"/> </InstallExecuteSequence> </Product> Running this installer attempting the upgrade from the previous version ALMOST WORKS. The file that is giving me trouble is the one called "PathwaysMdf". Even though it's Component code is EXACTLY the same as the PathwaysLdf file, that file is replaced, while the MDF is NOT. You can see, commented out, some of the other things I've attempted, some from suggestions on stackoverflow. The entire log file from running the upgrade is located at: http://pastebin.com/ppjhq6Wi THANK YOU! Joshua

    Read the article

  • How to Export Multiple Contacts in Outlook 2013 to Multiple vCards or a Single vCard

    - by Lori Kaufman
    We’ve shown you how to export a contact to and import a contact from a vCard (.vcf) file. However, what if you want to export multiple contacts at the same time to multiple vCard files or even a single vCard file? Outlook doesn’t allow you to directly export all your contacts as vCard files or as a single vCard file, but there is a way to accomplish both tasks. Export Multiple Contacts to Multiple vCard Files Outlook allows you to forward contact information as a vCard. You can also select multiple contacts and forward them all at once. This feature allows you to indirectly export multiple contacts at once to multiple vCard files. Click the People tab to access your contacts. Select all the contacts you want to export using the Shift and Ctrl keys as needed. Select Contacts the same way you would select files in Windows Explorer. Click Forward Contact in the Share section on the Home tab and select As a Business Card from the drop-down menu. The selected contacts attached to a new email message as .vcf files. To select all the attached .vcf files, right-click in the Attached box and select Select All from the popup menu. Make sure the folder to which you want to export the contacts is open in Windows Explorer. Drag the selected attached .vcf files from the new email message to the open folder in Windows Explorer. A .vcf file is created for each contact you selected and dragged to the folder. You can close the Message window by clicking on the X in the upper, right corner of the window. NOTE: You can also close the Message window by clicking the File tab. Then, click the Close option on the left. Because you already have your .vcf files, you don’t need to save or send the message, so click No when asked if you want to save your changes. If it turns out that a draft of your message was saved, the following message displays. Click No to delete the draft. Export Multiple Contacts to a Single vCard (.vcf) File If you would rather export your contacts to a single vCard (.vcf) File, there is a way to do this using Gmail. We’ll export the contacts from Outlook as a .csv file and then use Gmail to convert the .csv file to a .vcf file. Select the contacts you want to export on the People page and click the File tab. On the Account Information screen, click Open & Export in the list on the left. On the Open screen, click Import/Export. The Import and Export Wizard displays. Select Export to a file from the Choose an action to perform list and click Next. In the Create a file of type box, select Comma Separated Values. Click Next. Contacts should be already selected in the Select folder to export from box. If not, select it. Click Next. Click Browse to the right of the Save exported file as box. Navigate to the folder to which you want to export the .csv file. Enter a name for the file in the File name edit box, keeping the .csv extension. The path you selected is entered into the Save exported file as edit box. Click Next. The final screen of the Export to a File dialog box displays listing the action to be performed. Click Finish to begin the export process. Once the export process is finished, you will see the .csv file in the folder in Windows Explorer. Now, we will import the .csv file into Gmail. Go to Gmail and sign in to your account. Click Gmal in the upper, left corner of the main page and select Contacts from the drop-down menu. On the Contacts page, click More above your list of contacts and select Import from the drop-down menu. Click Browse on the Import contacts dialog box that displays. Navigate to the folder in which you saved the .csv file and select the file. Click Open. Click Import on the Import contacts dialog box. A screen displays listing the contacts you imported, but not yet merged into your main Gmail contacts list. Select the contacts you imported. NOTE: The contacts you imported may be the only contacts in this list. If that’s the case, they all should be automatically selected. Click More and select Export from the drop-down menu. On the Export contacts dialog box, select Selected contacts to indicate which contacts you want to export. NOTE: We could have selected The group Imported 10/10/13 because that contains the same two contacts as the Selected contacts. Select vCard format for the export format. Click Export. Gmail creates a contacts.vcf file containing the selected contacts and asks you whether you want to open the file with Outlook or save the file. To save the file, select the Save File option and click OK. Navigate to the folder in which you want to save the contacts.vcf file, change the name of the file in the File name edit box, if desired, and click Save. The .vcf file is saved to the selected directory and contains all the contacts you exported from Outlook. This could be used as a way to backup your contacts in one file. You could also backup the .csv file. However, if you have a lot of contacts you will probably find that the .vcf file is smaller. We only exported two contacts, and our .csv file was 2 KB, while the .vcf file was 1 KB. We will be showing you how to import multiple contacts from a single .vcf file into Outlook soon.     

    Read the article

  • scipy.io typeerror:buffer too small for requested array

    - by kartiku
    I have a problem in python. I'm using scipy, where i use scipy.io to load a .mat file. The .mat file was created using MATLAB. listOfFiles = os.listdir(loadpathTrain) for f in listOfFiles: fullPath = loadpathTrain + '/' + f mat_contents = sio.loadmat(fullPath) print fullPath Here's the error: Traceback (most recent call last): File "tryRankNet.py", line 1112, in demo() File "tryRankNet.py", line 645, in demo mat_contents = sio.loadmat(fullPath) File "/usr/lib/python2.6/dist-packages/scipy/io/matlab/mio.py", line 111, in loadmat matfile_dict = MR.get_variables() File "/usr/lib/python2.6/dist-packages/scipy/io/matlab/miobase.py", line 356, in get_variables getter = self.matrix_getter_factory() File "/usr/lib/python2.6/dist-packages/scipy/io/matlab/mio5.py", line 602, in matrix_getter_factory return self._array_reader.matrix_getter_factory() File "/usr/lib/python2.6/dist-packages/scipy/io/matlab/mio5.py", line 274, in matrix_getter_factory tag = self.read_dtype(self.dtypes['tag_full']) File "/usr/lib/python2.6/dist-packages/scipy/io/matlab/miobase.py", line 171, in read_dtype order='F') TypeError: buffer is too small for requested array The whole thing is in a loop, and I checked the size of the file where it gives the error by loading it interactively in IDLE. The size is (9,521), which is not at all huge. I tried to find if I'm supposed to clear the buffer after each iteration of the loop, but I could not find anything. Any help would be appreciated. Thanks.

    Read the article

  • Python 3 with the range function

    - by Leif Andersen
    I can type in the following code in the terminal, and it works: for i in range(5): print(i) And it will print: 0 1 2 3 4 as expected. However, I tried to write a script that does a similar thing: print(current_chunk.data) read_chunk(file, current_chunk) numVerts, numFaces, numEdges = current_chunk.data print(current_chunk.data) print(numVerts) for vertex in range(numVerts): print("Hello World") current_chunk.data is gained from the following method: def read_chunk(file, chunk): line = file.readline() while line.startswith('#'): line = file.readline() chunk.data = line.split() The output for this is: ['OFF'] ['490', '518', '0'] 490 Traceback (most recent call last): File "/home/leif/src/install/linux2/.blender/scripts/io/import_scene_off.py", line 88, in execute load_off(self.properties.path, context) File "/home/leif/src/install/linux2/.blender/scripts/io/import_scene_off.py", line 68, in load_off for vertex in range(numVerts): TypeError: 'str' object cannot be interpreted as an integer So, why isn't it spitting out Hello World 490 times? Or is the 490 being thought of as a string? I opened the file like this: def load_off(filename, context): file = open(filename, 'r')

    Read the article

  • One position right barrel shift using ALU Operators?

    - by Tomek
    I was wondering if there was an efficient way to perform a shift right on an 8 bit binary value using only ALU Operators (NOT, OR, AND, XOR, ADD, SUB) Example: input: 00110101 output: 10011010 I have been able to implement a shift left by just adding the 8 bit binary value with itself since a shift left is equivalent to multiplying by 2. However, I can't think of a way to do this for shift right. The only method I have come up with so far is to just perform 7 left barrel shifts. Is this the only way?

    Read the article

  • Problems in Linux Mint 13 MATE with NTFS partitions

    - by usr
    I'm using Linux Mint 13 MATE (32 bit). With Caja file manager (based on Nautilus 2.x) I can create, modify and remove folders and files on NTFS partitions whitout problems. But, for example, when I have a compressed file (.zip, .7z, ...) in a NTFS partition I can't extract it (with File-Roller, Peazip, ...). But I can extract the same file in a ext4 partition perfectly. What might the problem be? Are there (maybe) file permissions for each application?

    Read the article

  • How can I transfer a file via XMPP using Python?

    - by Enchantner
    I'm using xmpppy library for my jabber remote administration bot, but I can't find how to send/receive a file and save it inside the directory specified. The documentation is poor and there isn't any examples, but I really want to make it. Can anyone show some examples or some links about it? Or maybe I should use an alternative xmpp bindings?

    Read the article

  • Is is possible to use IOCP (or other API) in Reactor-style operations?

    - by Artyom
    Hello, Is there any scalable Win32 API (like IOCP not like select) that gives you reactor style operations on sockets? AFAIK IOCP allows you to receive notification on completed operations like data read or written (proactor) but I'm looking for reactor style of operations: I need to get notification when the socket is readable or writable (reactor). Something similar to epoll, kqueue, /dev/poll ? Is there such API in Win32? If so where can I find a manual on it? Clearification: I need select like api for sockets that is as scalable as IOCP, or I'm looking for a way to use IOCP in reactor like operations.

    Read the article

  • Is is possible to use IOCP (or other API) in reactor stle operations?

    - by Artyom
    Hello, Is there any scalable Win32 API (like IOCP not like select) that gives you reactor style operations on sockets? AFAIK IOCP allows you to receive notification on completed operations like data read or written (proactor) but I'm looking for reactor style of operations: I need to get notification when the socket is readable or writable (reactor). Something similar to epoll, kqueue, /dev/poll ? Is there such API in Win32? If so where can I find a manual on it?

    Read the article

  • Why does adding Crossover to my Genetic Algorithm gives me worse results?

    - by MahlerFive
    I have implemented a Genetic Algorithm to solve the Traveling Salesman Problem (TSP). When I use only mutation, I find better solutions than when I add in crossover. I know that normal crossover methods do not work for TSP, so I implemented both the Ordered Crossover and the PMX Crossover methods, and both suffer from bad results. Here are the other parameters I'm using: Mutation: Single Swap Mutation or Inverted Subsequence Mutation (as described by Tiendil here) with mutation rates tested between 1% and 25%. Selection: Roulette Wheel Selection Fitness function: 1 / distance of tour Population size: Tested 100, 200, 500, I also run the GA 5 times so that I have a variety of starting populations. Stop Condition: 2500 generations With the same dataset of 26 points, I usually get results of about 500-600 distance using purely mutation with high mutation rates. When adding crossover my results are usually in the 800 distance range. The other confusing thing is that I have also implemented a very simple Hill-Climbing algorithm to solve the problem and when I run that 1000 times (faster than running the GA 5 times) I get results around 410-450 distance, and I would expect to get better results using a GA. Any ideas as to why my GA performing worse when I add crossover? And why is it performing much worse than a simple Hill-Climb algorithm which should get stuck on local maxima as it has no way of exploring once it finds a local max?

    Read the article

  • Create PHP DOM xml file and create a save file link/prompt without writing the file to the server wh

    - by Reed Richards
    I've created a PHP DOM xml piece and saved it to a string like this: <?php // create a new XML document $doc = new DomDocument('1.0'); ... ... ... $xmldata = $doc->saveXML(); ?> Now I can't use the headers to send a file download prompt and I can't write the file to the server, or rather I don't want the file laying around on it. Something like a save this file link or a download prompt would be good. How do I do it?

    Read the article

  • I (think) I want to use a BItWise Operator to check useraccountcontrol property!

    - by Jim
    Hello, Here's some code: DirectorySearcher searcher = new DirectorySearcher(); searcher.Filter = "(&(objectClass=user)(sAMAccountName=" + lstUsers.SelectedItem.Text + "))"; SearchResult result = searcher.FindOne(); Within result.Properties["useraccountcontrol"] will be an item which will give me a value depending on the state of the account. For instance, a value of 66050 means I'm dealing with: A normal account; where the password does not expire;which has been disabled. Explanation here. What's the most concise way of finding out if my value "contains" the AccountDisable flag (which is 2) Thanks in advance!

    Read the article

  • C++: ifstream::getline problem

    - by Jay
    I am reading a file like this: char string[256]; std::ifstream file( "file.txt" ); // open the level file. if ( ! file ) // check if the file loaded fine. { // error } while ( file.getline( string, 256, ' ' ) ) { // handle input } Just for testing purposes, my file is just one line, with a space at the end: 12345 My code first reads the 12345 successfully. But then instead of the loop ending, it reads another string, which seems to be a return/newline. I have saved my file both in gedit and in nano. And I have also outputted it with the Linux cat command, and there is no return on the end. So the file should be fine. Why is my code reading a return/newline? Thanks.

    Read the article

  • PHP MINISERVER DOWNLOAD RESUME-ERROR! Resource id # 4

    - by snikolov
    $httpsock = @socket_create_listen("9090"); if (!$httpsock) { print "Socket creation failed!\n"; exit; } while (1) { $client = socket_accept($httpsock); $input = trim(socket_read ($client, 4096)); $input = explode(" ", $input); $range = $input[12]; $input = $input[1]; $fileinfo = pathinfo($input); switch ($fileinfo['extension']) { default: $mime = "text/html"; } if ($input == "/") { $input = "index.html"; } $input = ".$input"; if (file_exists($input) && is_readable($input)) { echo "Serving $input\n"; $contents = file_get_contents($input); $output = "HTTP/1.0 200 OK\r\nServer: APatchyServer\r\nConnection: close\r\nContent-Type: $mime\r\n\r\n$contents"; } else { //$contents = "The file you requested doesn't exist. Sorry!"; //$output = "HTTP/1.0 404 OBJECT NOT FOUND\r\nServer: BabyHTTP\r\nConnection: close\r\nContent-Type: text/html\r\n\r\n$contents"; if(isset($range)) { list($a, $range) = explode("=",$range); str_replace($range, "-", $range); $size2 = $size-1; $new_length = $size-$range; $output = "HTTP/1.1 206 Partial Content\r\n"; $output .= "Content-Length: $new_length\r\n"; $output .= "Content-Range: bytes $range$size2/$size\r\n"; } else { $size2=$size-1; $output .= "Content-Length: $new_length\r\n"; } $chunksize = 1*(1024*1024); $bytes_send = 0; $file = "a.mp3"; $filesize = filesize($file); if ($file = fopen($file, 'r')) { if(isset($range)) $output = 'HTTP/1.0 200 OK\r\n'; $output .= "Content-type: application/octet-stream\r\n"; $output .= "Content-Length: $filesize\r\n"; $output .= 'Content-Disposition: attachment; filename="'.$file.'"\r\n'; $output .= "Accept-Ranges: bytes\r\n"; $output .= "Cache-Control: private\n\n"; fseek($file, $range); $download_rate = 1000; while(!feof($file) and (connection_status()==0)) { $var_stat = fread($file, round($download_rate *1024)); $output .= $var_stat;//echo($buffer); // is also possible flush(); sleep(1);//// decrease download speed } fclose($file); } /** $filename = "dada"; $file = fopen($filename, 'r'); $filesize = filesize($filename); $buffer = fread($file, $filesize); $send = array("Output"=$buffer,"filesize"=$filesize,"filename"=$filename); $file = $send['filename']; */ //@ob_end_clean(); // $output .= "Content-Transfer-Encoding: binary"; //$output .= "Connection: Keep-Alive\r\n"; } socket_write($client, $output); socket_close ($client); } socket_close ($httpsock); hey guys i have create a miniwebserver downloader it can download files from your server, however i am unable to resume my download when i download the file i get Resource id # 4 and also i cant resume the download,i would like to know how i can monitor record the client output how much bandwidth he has downloaded perl has something like this put its hardcore if possible kindly provide me with some pointers thank you :)

    Read the article

  • Is this code well-defined?

    - by Nawaz
    This code is taken from a discussion going on here. someInstance.Fun(++k).Gun(10).Sun(k).Tun(); Is this code well-defined? Is ++k Fun() evaluated before k in Sun()? What if k is user-defined type, not built-in type? And in what ways the above function calls order is different from this: eat(++k);drink(10);sleep(k); As far as I can say, in both situations, there exists a sequence point after each function call. If so, then why can't the first case is also well-defined like the second one? Section 1.9.17 of the C++ ISO standard says this about sequence points and function evaluation: When calling a function (whether or not the function is inline), there is a sequence point after the evaluation of all function arguments (if any) which takes place before execution of any expressions or statements in the function body. There is also a sequence point after the copying of a returned value and before the execution of any expressions outside the function.

    Read the article

< Previous Page | 106 107 108 109 110 111 112 113 114 115 116 117  | Next Page >