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  • FastCGI on lighttpd no data received

    - by Michael Sh
    I have a simple FastCGI script: public static void main (String args[]) { int count = 0; while(new FCGIInterface().FCGIaccept()>= 0) { count ++; System.out.println("Content-type: text/html\n\n"); System.out.println("<html>"); System.out.println( "<head><TITLE>FastCGI-Hello Java stdio</TITLE></head>"); System.out.println("<body>"); System.out.println("<H3>FastCGI Hello Java stdio</H3>"); System.out.println("request number " + count + " running on host " + System.getProperty("SERVER_NAME")); System.out.println("</body>"); System.out.println("</html>"); } } Set up with lighttpd as: server.modules += ( "mod_fastcgi" ) fastcgi.debug = 1 fastcgi.server = ( "/cgi" => ( "fastcgi" => ("port" => 8888, "host" => "127.0.0.1", "bin-path" => "/var/www/tiny.fcgi", "min-procs" => 1, "max-procs" => 1, "check-local" => "disable" )) ) In the log: 2012-11-24 04:35:04: (mod_fastcgi.c.1367) --- fastcgi spawning local proc: /var/www/tiny.fcgi port: 54321 socket max-procs: 1 2012-11-24 04:35:04: (mod_fastcgi.c.1391) --- fastcgi spawning port: 54321 socket current: 0 / 1 2012-11-24 04:35:39: (mod_fastcgi.c.3061) got proc: pid: 0 socket: tcp:127.0.0.1:54321 load: 1 The problem is that there is no data being sent from the server to browser. Am I missing something here?

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  • Using awk to split text file every 10,000 lines

    - by Sneaky Wombat
    I have a large gzip'd text file. I'd like to something like: zcat BIGFILE.GZ | awk (snag 10,000 lines and redirect to...)|gzip -9 smallerPartFile.gz the awk part up there, I basically want it to take 10,000 lines and send it to gzip and then repeat until all lines in the original input file are consumed. I found a script that claims to do this, but when I run it on my files and then diff the original to the ones that were split and then merged, lines are missing. So, something is wrong with the awk part and I'm not sure what part is broken. Here's the code. Can someone tell me why this doesn't yield a file that can be split and merged and then diff'd to the original successfully? # Generate files part0.dat.gz, part1.dat.gz, etc. # restore with: zcat foo* | gzip -9 > restoredFoo.sql.gz (or something like that) prefix="foo" count=0 suffix=".sql" lines=10000 # Split every 10000 line. zcat /home/foo/foo.sql.gz | while true; do partname=${prefix}${count}${suffix} # Use awk to read the required number of lines from the input stream. awk -v lines=${lines} 'NR <= lines {print} NR == lines {exit}' >${partname} if [[ -s ${partname} ]]; then # Compress this part file. gzip -9 ${partname} (( ++count )) else # Last file generated is empty, delete it. rm -f ${partname} break fi done

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  • Excel or Access: how to group several lines in a table and insert contents in columns? ("split column")

    - by Martin
    I have a table containing data of sold products (shown in the example on the left): Columns: Number of the order Product Name Attribute - specifies what is given in the following field "value", e. g. Customer Name or Product Variant Value - is the value of the Attribute Count - is the number of products of this variant sold in the order That means: Product B has 2 variants "c" and "d" Note that in Order 1 Product B was sold in Variant d only, because the letter "N" in field "D4" means "none". Note, that in OrdnerNo 3 Product B was sold only in Variant c, because for Variant d field "D9" is "N"!! This is confusing, but it is the structure of the original data (which I can not change). I need a way to convert the table on the left in a table like that on the right: one line for each product type Order Number Product Name Customer Name Count (number of products sold in this order) Variant - this is the problem, as it has to be filled with the So all rows with the same OrderNo and same product have to be grouped in to one, and I hope it is clear what I need. I tried to do it with Pivot Tables, but that fails, as the Count is always in each line, no matter if it has Value "N" or not and for the products without variants there is only one line for each order, however for products with variants there are several... So how could I create the right table with a VBA macro in MS Excel or maybe there is a trick in MS Access to do it directly or with an SQL query?

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  • Exporting only visible datagridview columns to excel

    - by Suresh E
    Need help on exporting only visible DataGridView columns to excel, I have this code for hiding columns in DataGridView. this.dg1.Columns[0].Visible = false; And then I have button click event for exporting to excel. // creating Excel Application Microsoft.Office.Interop.Excel._Application app = new Microsoft.Office.Interop.Excel._Application(); // creating new WorkBook within Excel application Microsoft.Office.Interop.Excel._Workbook workbook = app.Workbooks.Add(Type.Missing); // creating new Excelsheet in workbook Microsoft.Office.Interop.Excel._Worksheet worksheet = null; // see the excel sheet behind the program app.Visible = true; // get the reference of first sheet. By default its name is Sheet1. // store its reference to worksheet worksheet = workbook.Sheets["Sheet1"]; worksheet = workbook.ActiveSheet; // changing the name of active sheet worksheet.Name = "PIN korisnici"; // storing header part in Excel for (int i = 1; i < dg1.Columns.Count + 1; i++) { worksheet.Cells[1, i] = dg1.Columns[i - 1].HeaderText; } // storing Each row and column value to excel sheet for (int i = 0; i < dg1.Rows.Count - 1; i++) { for (int j = 0; j < dg1.Columns.Count; j++) { worksheet.Cells[i + 2, j + 1] = dg1.Rows[i].Cells[j].Value.ToString(); } } but I want to export only visible columns, while I get all of them, anyone, help on this.

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  • Compare-Object gives false differences

    - by Andy
    I have some problem with Compare-Object. My task is to get difference between two directory snapshots made at different times. First snapshot is taken like this: ls -recurse d:\dir | export-clixml dir-20100129.xml Then, later, I get second snapshot and load both of them: $b = (import-clixml dir-20100130.xml) $a = (import-clixml dir-20100129.xml) Next, I'm trying to compare with Compare-Object, like that: diff $a $b What I get is in some places files that were added to $b since $a, but in some -- files that were in both snapshots, and some files, that were added to $b, are not given in Compare-Object output. Puzzling, but $b.count - $a.count is EXACTLY the same as (diff $a $b).count. Why is that? Ok, Compare-Object has -property param. I try to use that: diff -property fullname $a $b And I get the whole mess of differences: it shows me ALL the files. For example, say $a contains: A\1.txt A\2.txt A\3.txt And $b contains: X\2.mp3 X\3.mp3 X\4.mp3 A\1.txt A\2.txt A\3.txt diff output is something like that: X\2.mp3 => A\1.txt <= X\3.mp3 => A\2.txt <= X\4.mp3 => A\3.txt <= A\1.txt => A\2.txt => A\3.txt => Weird. I think I don't understand something crucial about Compare- Object usage, and manuals are scarce... Please, help me to get the DIFFERENCE between two directory snapshots. Thanks in advance UPDATE: I've saved data as plain strings like that: > import-clixml dir-20100129.xml | % { $_.fullname } | out-file -enc utf8 a.txt And results are the same. Here're excerpts of both snapshots (top 100-something lines, a.txt and b.txt), output of compare-object, and output of UNIX diff (unified). All files are UTF-8: http://dl.dropbox.com/u/2873752/compare-object-problem.zip

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  • Prevent 'Run-time error '7' out of memory' error in Excel when using macro

    - by MasterJedi
    I keep getting this error whenever I run a macro in my excel file. Is there any way I can prevent this? My code is below. Debugging highlights the following line as the issue: ActiveSheet.Shapes.SelectAll My macro: Private Sub Save() Dim sh As Worksheet ActiveWorkbook.Sheets("Report").Copy 'Create new workbook with Sheets("Report"(2)) as only sheet. Set sh = ActiveWorkbook.Sheets(1) 'Set the new sheet to a variable. New workbook is now active workbook. sh.Name = sh.Range("B9") & "_" & Format(Date, "mmyyyy") 'Rename the new sheet to B9 value + date. With sh.UsedRange.Cells .Value = .Value 'eliminate all formulas .Validation.Delete 'remove all validation .FormatConditions.Delete 'remove all conditional formatting ActiveSheet.Buttons.Delete ActiveSheet.Shapes.SelectAll Selection.Delete lrow = Range("I" & Rows.Count).End(xlUp).Row 'select rows from bottom up to last containing data in column I Rows(lrow + 1 & ":" & Rows.Count).Delete 'delete rows with no data in column I Application.ScreenUpdating = False .Range("A410:XFD1048576").Delete Shift:=xlUp 'delete all cells outwith report range Application.ScreenUpdating = True Dim counter Dim nameCount nameCount = ActiveWorkbook.Names.Count counter = nameCount Do While counter > 0 ActiveWorkbook.Names(counter).Delete counter = counter - 1 Loop 'remove named ranges from workbook End With ActiveWorkbook.SaveAs "\\Marko\Report\" & sh.Name & ".xlsx" 'Save new workbook using same name as new sheet. ActiveWorkbook.Close False 'Close the new workbook. MsgBox ("Export complete. Choose the next ADP in cell B9 and click 'Calculate'.") 'Display message box to inform user that report has been saved. End Sub Not sure how to make this more efficient or to prevent this error.

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  • Can't get a display albums function to work... php [closed]

    - by Zhenia
    need your help with the code, please. I am trying to display an album from the database, but i just get some strange signs having no idea why... the signs are Albums Help me out if you know how to solve this problem. how can i maKe the code to display name of the album and amount of images in it? i am sure all is fine with the db. this is the function: function get_albums() { $albums = array(); // not always have got to put brackets $albums_query = "SELECT albums.album_id, albums.timestamp, albums.name, LEFT(albums.description, 50) as description, COUNT(images.image_id) as image_count FROM albums LEFT JOIN images ON albums.album_id = images.album_id WHERE albums.user_id = '{$_SESSION['user_id']}' GROUP BY albums.album_id"; $res = mysql_query($albums_query) or die(mysql_error().'<br>'.$albums_query); while($albums_row = mysql_fetch_assoc($res)){ $albums = array ( 'id' => $albums_row['album_id'], 'timestamp'=> $albums_row['timestamp'], 'name' => $albums_row['name'], 'description' => $albums_row['description'], 'count' =>$albums_row['image_count'] ); } return $albums; } and the other half of the code: <?php $albums = get_albums(); if(empty($albums)) { echo'<p>You don\'t have any albums</p>'; }else{ foreach($albums as $album){ echo'<p><a href="view_album.php?album_id=',$album['id'],'">',$album['name'],'</a>(',$album['count'],'images)<br /></p>'; } } ?>

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  • System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host

    - by coffeeaddict
    We have 2 identical database tables on our dev server. In both is a table that holds an X509Certificate2 data in one of its fields. When I grab the cert along with the password that I've been using all along, it works over the first database just fine. I run the same code though over the 2nd database and get this error and I don't get why if the setup is exactly the same and the database is also on this server. So I'm not sure why when I switch my connection string to talk to Database2, even though it's setup the same and the code I'm running over it is the same, it complains. Here's the stack trace: An existing connection was forcibly closed by the remote host Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [SocketException (0x2746): An existing connection was forcibly closed by the remote host] System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) +232 [IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.] System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) +7035903 System.Net.FixedSizeReader.ReadPacket(Byte[] buffer, Int32 offset, Int32 count) +58 System.Net.Security.SslState.StartReadFrame(Byte[] buffer, Int32 readBytes, AsyncProtocolRequest asyncRequest) +116 System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest) +123 System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest) +86 System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest) +123 System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest) +86 System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest) +123 System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest) +86 System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest) +123 System.Net.Security.SslState.ForceAuthentication(Boolean receiveFirst, Byte[] buffer, AsyncProtocolRequest asyncRequest) +7184357 System.Net.Security.SslState.ProcessAuthentication(LazyAsyncResult lazyResult) +217 System.Threading.ExecutionContext.runTryCode(Object userData) +376 System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData) +0 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) +98 System.Net.TlsStream.ProcessAuthentication(LazyAsyncResult result) +1134 System.Net.TlsStream.Write(Byte[] buffer, Int32 offset, Int32 size) +88 System.Net.PooledStream.Write(Byte[] buffer, Int32 offset, Int32 size) +20 System.Net.ConnectStream.WriteHeaders(Boolean async) +360 [WebException: The underlying connection was closed: An unexpected error occurred on a send.] System.Web.Services.Protocols.WebClientProtocol.GetWebResponse(WebRequest request) +857631 System.Web.Services.Protocols.HttpWebClientProtocol.GetWebResponse(WebRequest request) +10 System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters) +243 Pmall.PayPal.PayPalApi.PayPalAPIAASoapBinding.SetExpressCheckout(SetExpressCheckoutReq SetExpressCheckoutReq) in C:\www\ssss\ssss\ssss\ssss\Reference.cs:1304 ssss.PayPal.ExpressCheckout.PayPalCheckout.SetExpressCheckout(PaymentDetailsType[] paymentDetails, String returnURL, String cancelURL, PayPalPaymentFlowType paymentFlowType) in C:\www\ssss\ssss\ssss\PayPalCheckout.cs:96 ssss.Web.ssss.SetExpressCheckout() in C:\www\ssss\ssss\ssss.aspx.cs:83 ssss.Web.ssss.Page_Load(Object sender, EventArgs e) in C:\www\ssss\ssss\Register.aspx.cs:24 System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +25 System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +42 System.Web.UI.Control.OnLoad(EventArgs e) +132 System.Web.UI.Control.LoadRecursive() +66 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2428

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  • JQuery Window blinking

    - by Nisanth
    Hi All I am developing a chat application(Customer and operator). Using jquery Ajax and PHP . From customer side he can handle multiple chat.. For example ha have two chat.. How he knows in which window the new msg comes.. I can take the count . But is there any option in jquery to blink the window when count change ?

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  • Issue with dynamic array Queue data structure with void pointer

    - by Nazgulled
    Hi, Maybe there's no way to solve this the way I'd like it but I don't know everything so I better ask... I've implemented a simple Queue with a dynamic array so the user can initialize with whatever number of items it wants. I'm also trying to use a void pointer as to allow any data type, but that's the problem. Here's my code: typedef void * QueueValue; typedef struct sQueueItem { QueueValue value; } QueueItem; typedef struct sQueue { QueueItem *items; int first; int last; int size; int count; } Queue; void queueInitialize(Queue **queue, size_t size) { *queue = xmalloc(sizeof(Queue)); QueueItem *items = xmalloc(sizeof(QueueItem) * size); (*queue)->items = items; (*queue)->first = 0; (*queue)->last = 0; (*queue)->size = size; (*queue)->count = 0; } Bool queuePush(Queue * const queue, QueueValue value, size_t val_sz) { if(isNull(queue) || isFull(queue)) return FALSE; queue->items[queue->last].value = xmalloc(val_sz); memcpy(queue->items[queue->last].value, value, val_sz); queue->last = (queue->last+1) % queue->size; queue->count += 1; return TRUE; } Bool queuePop(Queue * const queue, QueueValue *value) { if(isEmpty(queue)) return FALSE; *value = queue->items[queue->first].value; free(queue->items[queue->first].value); queue->first = (queue->first+1) % queue->size; queue->count -= 1; return TRUE; } The problem lies on the queuePop function. When I call it, I lose the value because I free it right away. I can't seem to solve this dilemma. I want my library to be generic and modular. The user should not care about allocating and freeing memory, that's the library's job. How can the user still get the value from queuePop and let the library handle all memory allocs/frees?

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  • MDX: Problem filtering results in MDX query used in Reporting Services query

    - by wgpubs
    Why aren't my results being filtered by the members from my [Group Hierarchy] returned via the filter() statment below? SELECT NON EMPTY {[Measures].[Group Count], [Measures].[Overall Group Count] } ON COLUMNS, NON EMPTY { [Survey].[Surveys By Year].[Survey Year].ALLMEMBERS * [Response Status].[Response Status].[Response Status].ALLMEMBERS} DIMENSION PROPERTIES MEMBER_CAPTION, MEMBER_UNIQUE_NAME ON ROWS FROM ( SELECT ( { [Survey Type].[Survey Type Hierarchy].&[9] } ) ON COLUMNS FROM ( SELECT ( { [Response Status].[Response Status].[All] } ) ON COLUMNS FROM ( SELECT ( STRTOSET(@SurveySurveysByYear, CONSTRAINED) ) ON COLUMNS FROM ( SELECT(filter([Group].[Group Hierarchy].members, instr(@GroupGroupFullName,[Group].[Group Hierarchy].Properties( "Group Full Name" )))) on columns FROM [SysSurveyDW])))) CELL PROPERTIES VALUE, BACK_COLOR, FORE_COLOR, FORMATTED_VALUE, FORMAT_STRING, FONT_NAME, FONT_SIZE, FONT_FLAGS

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  • WCF service monitoring

    - by Cicik
    I am writing WCF service hosted in WinForms application. Is there some way to monitor performance and statistics(count of instances, count of calls to endpoints, duration of calls, etc...) about service and display them in Form in which service is hosted?

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  • Eclipse BIRT: Problem with number of rows in a dataset

    - by Patrick
    Hello!:-) My new Problem is the following: An sql-query to a database (DB2) returns 1500 rows but BIRT shows me only 500 in the dataset-editior. To count them i used a computed column (Integer) with the following logic: Total.count(row["VPK"]) I'm using the RCP-Designer (BIRT 2.1.3). How can i get the other rows as well? Patrick

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  • c# Properties.Settings.Default Doesn't work as expected

    - by Jack
    I've been working on a program to automate my backup checks with LogMeIn backup (a windows forms based program). I now need a way to store user settings, to save information easily. I've never worked with the Application/User settings that is somewhat "built-in" - and decided to try it, but ran into problems. I added four settings for now: IncludeCriteria (Specialized.StringCollection) ExcludeCriteria (Specialized.StringCollection) ReportPath (string) ReportType (int) But the behavior doesn't act as expected (go figure). After saving some values in my program, I go back into edit/view my settings values using the VS 2008 settings editor. None of my values are stored. While I think this may be because those values are just default values, wouldn't that be where they can be stored/read/changed? Here is my load form code (still very unrefined): private void setupForm() { txtPath.Text = BackupReport.Properties.Settings.Default.ReportPath == null ? "" : BackupReport.Properties.Settings.Default.ReportPath; if (BackupReport.Properties.Settings.Default.ReportType == 0) { radioHTML.Checked = true; } else radioExcel.Checked = true; if (BackupReport.Properties.Settings.Default.IncludeCriteria.Count > 0) { listIncludeCriteria.DataSource = Properties.Settings.Default.IncludeCriteria; //foreach (string s in Properties.Settings.Default.IncludeCriteria) // listIncludeCriteria.Items.Add(s); } if (BackupReport.Properties.Settings.Default.ExcludeCriteria.Count > 0) { listExcludeCriteria.DataSource = BackupReport.Properties.Settings.Default.ExcludeCriteria; //foreach (string s in Properties.Settings.Default.ExcludeCriteria) // listExcludeCriteria.Items.Add(s); } } listIncludeCriteria is just a listbox. When the user saves I call this method: private void saveSettings() { //var settings = BackupReport.Properties.Settings; if (txtPath.Text != "") { BackupReport.Properties.Settings.Default.ReportPath = txtPath.Text; } if (listIncludeCriteria.Items.Count > 0) { //BackupReport.Properties.Settings.Default.IncludeCriteria = (StringCollection)listIncludeCriteria.Items.AsQueryable(); foreach (var i in listIncludeCriteria.Items) { if (!isIncludeDuplicate(i.ToString())) BackupReport.Properties.Settings.Default.IncludeCriteria.Add(i.ToString()); } } if (listExcludeCriteria.Items.Count > 0) { //BackupReport.Properties.Settings.Default.ExcludeCriteria = (StringCollection)listExcludeCriteria.Items.AsQueryable(); foreach (var i in listExcludeCriteria.Items) { if (!isExcludeDuplicate(i.ToString())) Properties.Settings.Default.ExcludeCriteria.Add(i.ToString()); } } if (radioExcel.Checked == true) BackupReport.Properties.Settings.Default.ReportType = 1; else BackupReport.Properties.Settings.Default.ReportType = 0; BackupReport.Properties.Settings.Default.Save(); //Properties.Settings.Default.Save(); this.DialogResult = DialogResult.OK; this.Close(); } The wierd thing is when the form loads, the path I put in the first time seems to come up (ReportPath) - even the listBoxes are populated with a bunch of crap I put in - yet I cant find these values anywhere. Any help would be appreciated! Josh

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  • iPhone SDK: Audio Queue control

    - by codemercenary
    Hi all, I am new to the audio queue services so I have taken an example from a book called iPhone Cool Projects where it describes how to stream audio. I want to extend this to being able to play a continuous playlist of links to mp3 files like an internet radio. The problem with the example code it that it does not detect when a stream ends and does not call AudioQueueStop at any point, so I added a counter to number of buffers added to the queue, and then decrement this counter each time audioQueueOutputCallback is called by the queue. This works fine except if when the buffer count goes to 0, and then I add a call AudioQueueFlush(audioQueue) and then AudioQueueStop(audioQueue, false) I get an error. If I only call AudioQueueReset, it continues to load the buffers again, but plays them out faster then it loads them... getting stuck in a loop and then crashing. 2010-04-14 13:56:29.745 AudioPlayer[2269:207] init player with URL 2010-04-14 13:56:29.941 AudioPlayer[2269:207] did recieve data 2010-04-14 13:56:29.942 AudioPlayer[2269:207] audio request didReceiveData 2010-04-14 13:56:29.944 AudioPlayer[2269:207] >>> start audio queue 2010-04-14 13:56:29.960 AudioPlayer[2269:207] packetCallback count 2 2010-04-14 13:56:29.961 AudioPlayer[2269:207] add buffer: 1 2010-04-14 13:56:29.962 AudioPlayer[2269:207] did recieve data 2010-04-14 13:56:29.963 AudioPlayer[2269:207] audio request didReceiveData 2010-04-14 13:56:29.963 AudioPlayer[2269:207] packetCallback count 1 2010-04-14 13:56:29.964 AudioPlayer[2269:207] add buffer: 2 2010-04-14 13:56:29.965 AudioPlayer[2269:207] packetCallback count 13 2010-04-14 13:56:29.967 AudioPlayer[2269:207] add buffer: 3 2010-04-14 13:56:29.968 AudioPlayer[2269:207] done with buffer: 3 2010-04-14 13:56:29.969 AudioPlayer[2269:207] done with buffer: 2 2010-04-14 13:56:29.974 AudioPlayer[2269:207] done with buffer: 1 So this loop continues some 20 - 30 times and then it crashes. The first time it plays an audio file it queues up the buffers and then plays sound, but doesn't callback to delete them until some 100 or more have been played. Can anyone explain this behavior? I read that there was a limit of 1 audio queue for MP3 playback for the iPhone. Is that still true? If not then I suppose I should use another audio queue for the next mp3 stream. I've had a look through the apple docs but it doesn't explain this in any particular detail. A better insight into this would be great. TIA.

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  • How does mysql define DISTINCT() in reference documentation

    - by goran
    EDIT: This question is about finding definitive reference to MySQL syntax on SELECT modifying keywords and functions. /EDIT AFAIK SQL defines two uses of DISTINCT keywords - SELECT DISTINCT field... and SELECT COUNT(DISTINCT field) ... However in one of web applications that I administer I've noticed performance issues on queries like SELECT DISTINCT(field1), field2, field3 ... DISTINCT() on a single column makes no sense and I am almost sure it is interpreted as SELECT DISTINCT field1, field2, field3 ... but how can I prove this? I've searched mysql site for a reference on this particular syntax, but could not find any. Does anyone have a link to definition of DISTINCT() in mysql or knows about other authoritative source on this? Best EDIT After asking the same question on mysql forums I learned that while parsing the SQL mysql does not care about whitespace between functions and column names (but I am still missing a reference). As it seems you can have whitespace between functions and the parenthesis SELECT LEFT (field1,1), field2... and get mysql to understand it as SELECT LEFT(field,1) Similarly SELECT DISTINCT(field1), field2... seems to get decomposed to SELECT DISTINCT (field1), field2... and then DISTINCT is taken not as some undefined (or undocumented) function, but as SELECT modifying keyword and the parenthesis around field1 are evaluated as if they were part of field expression. It would be great if someone would have a pointer to documentation where it is stated that the whitespace between functions and parenthesis is not significant or to provide links to apropriate MySQL forums, mailing lists where I could raise a question to put this into reference. EDIT I have found a reference to server option IGNORE SPACE. It states that "The IGNORE SPACE SQL mode can be used to modify how the parser treats function names that are whitespace-sensitive", later on it states that recent versions of mysql have reduced this number from 200 to 30. One of the remaining 30 is COUNT for example. With IGNORE SPACE enabled both SELECT COUNT(*) FROM mytable; SELECT COUNT (*) FROM mytable; are legal. So if this is an exception, I am left to conclude that normally functions ignore space by default. If functions ignore space by default then if the context is ambiguous, such as for the first function on a first item of the select expression, then they are not distinguishable from keywords and the error can not be thrown and MySQL must accept them as keywords. Still, my conclusions feel like they have lot of assumptions, I would still be grateful and accept any pointers to see where to follow up on this.

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  • Moving items from one tableView to another tableView with extra's

    - by Totumus Maximus
    Let's say I have 2 UITableViews next to eachother on an ipad in landscape-mode. Now I want to move multiple items from one tableView to the other. They are allowed to be inserted on the bottom of the other tableView. Both have multiSelection activated. Now the movement itself is no problem with normal cells. But in my program each cell has an object which contains the consolidationState of the cell. There are 4 states a cell can have: Basic, Holding, Parent, Child. Basic = an ordinary cell. Holding = a cell which contains multiple childs but which wont be shown in this state. Parent = a cell which contains multiple childs and are shown directly below this cell. Child = a cell created by the Parent cell. The object in each cell also has some array which contains its children. The object also holds a quantityValue, which is displayed on the cell itself. Now the movement gets tricky. Holding and Parent cells can't move at all. Basic cells can move freely. Child cells can move freely but based on how many Child cells are left in the Parent. The parent will change or be deleted all together. If a Parent cell has more then 1 Child cell left it will stay a Parent cell. Else the Parent has no or 1 Child cell left and is useless. It will then be deleted. The items that are moved will always be of the same state. They will all be Basic cells. This is how I programmed the movement: *First I determine which of the tableViews is the sender and which is the receiver. *Second I ask all indexPathsForSelectedRows and sort them from highest row to lowest. *Then I build the data to be transferred. This I do by looping through the selectedRows and ask their object from the sender's listOfItems. *When I saved all the data I need I delete all the items from the sender TableView. This is why I sorted the selectedRows so I can start at the highest indexPath.row and delete without screwing up the other indexPaths. *When I loop through the selectedRows I check whether I found a cell with state Basic or Child. *If its a Basic cell I do nothing and just delete the cell. (this works fine with all Basic Cells) *If its a Child cell I go and check it's Parent cell immidiately. Since all Child cells are directly below the Parent cell and no other the the Parent's Childs are below that Parent I can safely get the path of the selected Childcell and move upwards and find it's Parent cell. When this Parent cell is found (this will always happen, no exceptions) it has to change accordingly. *The Parent cell will either be deleted or the object inside will have its quantity and children reduced. *After the Parent cell has changed accordingly the Child cell is deleted similarly like the Basic cells *After the deletion of the cells the receiver tableView will build new indexPaths so the movedObjects will have a place to go. *I then insert the objects into the listOfItems of the receiver TableView. The code works in the following ways: Only Basic cells are moved. Basic cells and just 1 child for each parent is moved. A single Basic/Child cell is moved. The code doesn't work when: I select more then 1 or all childs of some parent cell. The problem happens somewhere into updating the parent cells. I'm staring blindly at the code now so maybe a fresh look will help fix things. Any help will be appreciated. Here is the method that should do the movement: -(void)moveSelectedItems { UITableView *senderTableView = //retrieves the table with the data here. UITableView *receiverTableView = //retrieves the table which gets the data here. NSArray *selectedRows = senderTableView.indexPathsForSelectedRows; //sort selected rows from lowest indexPath.row to highest selectedRows = [selectedRows sortedArrayUsingSelector:@selector(compare:)]; //build up target rows (all objects to be moved) NSMutableArray *targetRows = [[NSMutableArray alloc] init]; for (int i = 0; i<selectedRows.count; i++) { NSIndexPath *path = [selectedRows objectAtIndex:i]; [targetRows addObject:[senderTableView.listOfItems objectAtIndex:path.row]]; } //delete rows at active for (int i = selectedRows.count-1; i >= 0; i--) { NSIndexPath *path = [selectedRows objectAtIndex:i]; //check what item you are deleting. act upon the status. Parent- and HoldingCells cant be selected so only check for basic and childs MyCellObject *item = [senderTableView.listOfItems objectAtIndex:path.row]; if (item.consolidatedState == ConsolidationTypeChild) { for (int j = path.row; j >= 0; j--) { MyCellObject *consolidatedItem = [senderTableView.listOfItems objectAtIndex:j]; if (consolidatedItem.consolidatedState == ConsolidationTypeParent) { //copy the consolidated item but with 1 less quantity MyCellObject *newItem = [consolidatedItem copyWithOneLessQuantity]; //creates a copy of the object with 1 less quantity. if (newItem.quantity > 1) { newItem.consolidatedState = ConsolidationTypeParent; [senderTableView.listOfItems replaceObjectAtIndex:j withObject:newItem]; } else if (newItem.quantity == 1) { newItem.consolidatedState = ConsolidationTypeBasic; [senderTableView.listOfItems removeObjectAtIndex:j]; MyCellObject *child = [senderTableView.listOfItems objectAtIndex:j+1]; child.consolidatedState = ConsolidationTypeBasic; [senderTableView.listOfItems replaceObjectAtIndex:j+1 withObject:child]; } else { [senderTableView.listOfItems removeObject:consolidatedItem]; } [senderTableView reloadData]; } } } [senderTableView.listOfItems removeObjectAtIndex:path.row]; } [senderTableView deleteRowsAtIndexPaths:selectedRows withRowAnimation:UITableViewRowAnimationTop]; //make new indexpaths for row animation NSMutableArray *newRows = [[NSMutableArray alloc] init]; for (int i = 0; i < targetRows.count; i++) { NSIndexPath *newPath = [NSIndexPath indexPathForRow:i+receiverTableView.listOfItems.count inSection:0]; [newRows addObject:newPath]; DLog(@"%i", i); //scroll to newest items [receiverTableView setContentOffset:CGPointMake(0, fmaxf(receiverTableView.contentSize.height - recieverTableView.frame.size.height, 0.0)) animated:YES]; } //add rows at target for (int i = 0; i < targetRows.count; i++) { MyCellObject *insertedItem = [targetRows objectAtIndex:i]; //all moved items will be brought into the standard (basic) consolidationType insertedItem.consolidatedState = ConsolidationTypeBasic; [receiverTableView.ListOfItems insertObject:insertedItem atIndex:receiverTableView.ListOfItems.count]; } [receiverTableView insertRowsAtIndexPaths:newRows withRowAnimation:UITableViewRowAnimationNone]; } If anyone has some fresh ideas of why the movement is bugging out let me know. If you feel like you need some extra information I'll be happy to add it. Again the problem is in the movement of ChildCells and updating the ParentCells properly. I could use some fresh looks and outsider ideas on this. Thanks in advance. *updated based on comments

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  • Google Spreadsheet multiple column filter using OR

    - by thefroatgt
    I have a Google Spreadsheet with 3 columns which are either blank or have a value. I want to get the count of the number of rows that has A and either B or C populated. If I were writing a SQL query it would be select count(*) from Table where A is not null and (B is not null or C is not null) But I can't for the life of me figure out how to get this in a Google Spreadsheet

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  • twitter API problem

    - by Gabri
    I am using this to get my latest Tweets <script type="text/javascript" src="http://twitter.com/javascripts/blogger.js" ></script> <script type="text/javascript"src="http://twitter.com/statuses/user_timeline/username.json?callback=twitterCallback2&amp;count=2"></script> so i have to get the latest 2 tweets cause i set the count to 2 , sometimes it returns only 1 why is that ?

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  • How to iterate over all the page breaks in an Excel 2003 worksheet via COM

    - by Martin
    I've been trying to retrieve the locations of all the page breaks on a given Excel 2003 worksheet over COM. Here's an example of the kind of thing I'm trying to do: Excel::HPageBreaksPtr pHPageBreaks = pSheet->GetHPageBreaks(); long count = pHPageBreaks->Count; for (long i=0; i < count; ++i) { Excel::HPageBreakPtr pHPageBreak = pHPageBreaks->GetItem(i+1); Excel::RangePtr pLocation = pHPageBreak->GetLocation(); printf("Page break at row %d\n", pLocation->Row); pLocation.Release(); pHPageBreak.Release(); } pHPageBreaks.Release(); I expect this to print out the row numbers of each of the horizontal page breaks in pSheet. The problem I'm having is that although count correctly indicates the number of page breaks in the worksheet, I can only ever seem to retrieve the first one. On the second run through the loop, calling pHPageBreaks->GetItem(i) throws an exception, with error number 0x8002000b, "invalid index". Attempting to use pHPageBreaks->Get_NewEnum() to get an enumerator to iterate over the collection also fails with the same error, immediately on the call to Get_NewEnum(). I've looked around for a solution, and the closest thing I've found so far is http://support.microsoft.com/kb/210663/en-us. I have tried activating various cells beyond the page breaks, including the cells just beyond the range to be printed, as well as the lower-right cell (IV65536), but it didn't help. If somebody can tell me how to get Excel to return the locations of all of the page breaks in a sheet, that would be awesome! Thank you. @Joel: Yes, I have tried displaying the user interface, and then setting ScreenUpdating to true - it produced the same results. Also, I have since tried combinations of setting pSheet->PrintArea to the entire worksheet and/or calling pSheet->ResetAllPageBreaks() before my call to get the HPageBreaks collection, which didn't help either. @Joel: I've used pSheet->UsedRange to determine the row to scroll past, and Excel does scroll past all the horizontal breaks, but I'm still having the same issue when I try to access the second one. Unfortunately, switching to Excel 2007 did not help either.

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  • How to configure maximum number of transport channels in WCF using basicHttpBinding?

    - by Hemant
    Consider following code which is essentially a WCF host: [ServiceContract (Namespace = "http://www.mightycalc.com")] interface ICalculator { [OperationContract] int Add (int aNum1, int aNum2); } [ServiceBehavior (InstanceContextMode = InstanceContextMode.PerCall)] class Calculator: ICalculator { public int Add (int aNum1, int aNum2) { Thread.Sleep (2000); //Simulate a lengthy operation return aNum1 + aNum2; } } class Program { static void Main (string[] args) { try { using (var serviceHost = new ServiceHost (typeof (Calculator))) { var httpBinding = new BasicHttpBinding (BasicHttpSecurityMode.None); serviceHost.AddServiceEndpoint (typeof (ICalculator), httpBinding, "http://172.16.9.191:2221/calc"); serviceHost.Open (); Console.WriteLine ("Service is running. ENJOY!!!"); Console.WriteLine ("Type 'stop' and hit enter to stop the service."); Console.ReadLine (); if (serviceHost.State == CommunicationState.Opened) serviceHost.Close (); } } catch (Exception e) { Console.WriteLine (e); Console.ReadLine (); } } } Also the WCF client program is: class Program { static int COUNT = 0; static Timer timer = null; static void Main (string[] args) { var threads = new Thread[10]; for (int i = 0; i < threads.Length; i++) { threads[i] = new Thread (Calculate); threads[i].Start (null); } timer = new Timer (o => Console.WriteLine ("Count: {0}", COUNT), null, 1000, 1000); Console.ReadLine (); timer.Dispose (); } static void Calculate (object state) { var c = new CalculatorClient ("BasicHttpBinding_ICalculator"); c.Open (); while (true) { try { var sum = c.Add (2, 3); Interlocked.Increment (ref COUNT); } catch (Exception ex) { Console.WriteLine ("Error on thread {0}: {1}", Thread.CurrentThread.Name, ex.GetType ()); break; } } c.Close (); } } Basically, I am creating 10 proxy clients and then repeatedly calling Add service method. Now if I run both applications and observe opened TCP connections using netstat, I find that: If both client and server are running on same machine, number of tcp connections are equal to number of proxy objects. It means all requests are being served in parallel. Which is good. If I run server on a separate machine, I observed that maximum 2 TCP connections are opened regardless of the number of proxy objects I create. Only 2 requests run in parallel. It hurts the processing speed badly. If I switch to net.tcp binding, everything works fine (a separate TCP connection for each proxy object even if they are running on different machines). I am very confused and unable to make the basicHttpBinding use more TCP connections. I know it is a long question, but please help!

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  • Group by and order by

    - by Simon Thompson
    using LINQ to NHibernate does anybody know how to use group by and order by in the same expression. I am having to execute the group by into a list and then order this, seem that I am missing soemthing here ??? Example:- Private function LoadStats(...) ... Dim StatRepos As DataAccess.StatsExtraction_vwRepository = New DataAccess.StatsExtraction_vwRepository return (From x In StatRepos.GetAnswers(Question, Questionnaire) _ Group x By xData = x.Data Into Count() _ Select New ChartData With {.TheData = xData, .TheValue = xData.Count} ).ToList.OrderBy(Function(x) x.TheData) End Sub

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  • sql - datetime variable versus string representation of datetime variable

    - by BhejaFry
    Hi folks, I have a query that takes too long to respond when the search parameter happens to be a varchar datatype with date. However, if i convert varchar to datetime variable, the query runs fine. For ex: This takes too long. select count(id) from names where updateddate '1/5/2010' This runs fine. declare @dateparam datetime set @dateparam = convert(datetime, '1/5/2010',102) select count(id) from names where updateddate @dateparam What's the reason one runs fine but the other doesn't? TIA

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