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• How do I synchronize access to shared memory in LynxOS/POSIX?

  - by GrahamS

  I am implementing two processes on a LynxOS SE (POSIX conformant) system that will communicate via shared memory. One process will act as a "producer" and the other a "consumer". In a multi-threaded system my approach to this would be to use a mutex and condvar (condition variable) pair, with the consumer waiting on the condvar (with pthread_cond_wait) and the producer signalling it (with pthread_cond_signal) when the shared memory is updated. How do I achieve this in a multi-process, rather than multi-threaded, architecture? Is there a LynxOS/POSIX way to create a condvar/mutex pair that can be used between processes? Or is some other synchronization mechanism more appropriate in this scenario?

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• cakephp filter index pages according to foreign keys

  - by Marki

  Hi there, I'm pretty new to CakePHP and was missing a crucial feature not generated as scaffold: filtering. What do I have to do to provide dropdowns or multi-selects on the index pages for each field that is a (foreign) key, thereby allowing to filter the table ("OR" inside multi-select, "AND" between different multi-selects, if any)? From what my websearch has shown me there are many more people trying to accomplish the same thing, although I couldn't find anything that would work for me because either they have text fields and do wildcard filtering, or the plugins they propose only work for 1.2 whereas i now started with 1.3 etc. etc. Can someone alleviate the confusion and maybe present some working code or direct me to the definitive guide[tm] where this matter has been solved? Thx

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• Problem getting IM information from an ABRecord

  - by bend0r

  Hello, I'm trying to get the IM account information from existing contacts (adressbook) on iPhone. I walk through the contacts and I get the contacts which have an entry in IM but I can't read the jabber-address. abArray = (NSArray *)ABAddressBookCopyArrayOfAllPeople(ABAddressBookCreate()); for(int i=0 ; i<[abArray count];i++) { ABRecordRef record = [abArray objectAtIndex:i]; ABMutableMultiValueRef multi = ABRecordCopyValue(record, kABPersonInstantMessageProperty); for(CFIndex x=0;x<ABMultiValueGetCount(multi);x++) { CFDictionaryRef dict = ABMultiValueCopyValueAtIndex(multi, x); CFStringRef jabber = CFDictionaryGetValue(dict, kABPersonInstantMessageServiceJabber); if(CFDictionaryContainsKey(dict, kABPersonInstantMessageServiceJabber)) { NSLog(@"yes"); } else { NSLog(@"no"); } // only to make it possible to log to console NSString *jaab = (NSString *)jabber; NSLog(@"jabber adress: %@" , jaab); } CFRelease(dict); } } what I'm doing wrong?

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• how to get latex to hyphenate a word that contains a dash ?

  - by Gyom

  In a latex document I'm writing, I get an overfull hbox warning because of the word "multi-disciplinary", which happens to be rendered at the end of a line. I can get rid of this particular warning by changing it into multi-discipli\-nary, but the same problem will happen elsewhere, since this word is used a lot in the paper. I'd like to use the \hyphenation{} command instead, but obviously my tentative \hyphenation{multi-disci-pli-na-ry} does not work, because it does not understand the first dash correctly. What incantation do I need to get correct indentation in a word that already contains a dash ? Bonus question: where could I have found the answer to that question myself ?

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• How should I implement simple caches with concurrency on Redis?

  - by solublefish

  Background I have a 2-tier web service - just my app server and an RDBMS. I want to move to a pool of identical app servers behind a load balancer. I currently cache a bunch of objects in-process. I hope to move them to a shared Redis. I have a dozen or so caches of simple, small-sized business objects. For example, I have a set of Foos. Each Foo has a unique FooId and an OwnerId. One "owner" may own multiple Foos. In a traditional RDBMS this is just a table with an index on the PK FooId and one on OwnerId. I'm caching this in one process simply: Dictionary<int,Foo> _cacheFooById; Dictionary<int,HashSet<int>> _indexFooIdsByOwnerId; Reads come straight from here, and writes go here and to the RDBMS. I usually have this invariant: "For a given group [say by OwnerId], the whole group is in cache or none of it is." So when I cache miss on a Foo, I pull that Foo and all the owner's other Foos from the RDBMS. Updates make sure to keep the index up to date and respect the invariant. When an owner calls GetMyFoos I never have to worry that some are cached and some aren't. What I did already The first/simplest answer seems to be to use plain ol' SET and GET with a composite key and json value: SET( "ServiceCache:Foo:" + theFoo.Id, JsonSerialize(theFoo)); I later decided I liked: HSET( "ServiceCache:Foo", theFoo.FooId, JsonSerialize(theFoo)); That lets me get all the values in one cache as HVALS. It also felt right - I'm literally moving hashtables to Redis, so perhaps my top-level items should be hashes. This works to first order. If my high-level code is like: UpdateCache(myFoo); AddToIndex(myFoo); That translates into: HSET ("ServiceCache:Foo", theFoo.FooId, JsonSerialize(theFoo)); var myFoos = JsonDeserialize( HGET ("ServiceCache:FooIndex", theFoo.OwnerId) ); myFoos.Add(theFoo.OwnerId); HSET ("ServiceCache:FooIndex", theFoo.OwnerId, JsonSerialize(myFoos)); However, this is broken in two ways. Two concurrent operations can read/modify/write at the same time. The latter "wins" the final HSET and the former's index update is lost. Another operation could read the index in between the first and second lines. It would miss a Foo that it should find. So how do I index properly? I think I could use a Redis set instead of a json-encoded value for the index. That would solve part of the problem since the "add-to-index-if-not-already-present" would be atomic. I also read about using MULTI as a "transaction" but it doesn't seem like it does what I want. Am I right that I can't really MULTI; HGET; {update}; HSET; EXEC since it doesn't even do the HGET before I issue the EXEC? I also read about using WATCH and MULTI for optimistic concurrency, then retrying on failure. But WATCH only works on top-level keys. So it's back to SET/GET instead of HSET/HGET. And now I need a new index-like-thing to support getting all the values in a given cache. If I understand it right, I can combine all these things to do the job. Something like: while(!succeeded) { WATCH( "ServiceCache:Foo:" + theFoo.FooId ); WATCH( "ServiceCache:FooIndexByOwner:" + theFoo.OwnerId ); WATCH( "ServiceCache:FooIndexAll" ); MULTI(); SET ("ServiceCache:Foo:" + theFoo.FooId, JsonSerialize(theFoo)); SADD ("ServiceCache:FooIndexByOwner:" + theFoo.OwnerId, theFoo.FooId); SADD ("ServiceCache:FooIndexAll", theFoo.FooId); EXEC(); //TODO somehow set succeeded properly } Finally I'd have to translate this pseudocode into real code depending how my client library uses WATCH/MULTI/EXEC; it looks like they need some sort of context to hook them together. All in all this seems like a lot of complexity for what has to be a very common case; I can't help but think there's a better, smarter, Redis-ish way to do things that I'm just not seeing. How do I lock properly? Even if I had no indexes, there's still a (probably rare) race condition. A: HGET - cache miss B: HGET - cache miss A: SELECT B: SELECT A: HSET C: HGET - cache hit C: UPDATE C: HSET B: HSET ** this is stale data that's clobbering C's update. Note that C could just be a really-fast A. Again I think WATCH, MULTI, retry would work, but... ick. I know in some places people use special Redis keys as locks for other objects. Is that a reasonable approach here? Should those be top-level keys like ServiceCache:FooLocks:{Id} or ServiceCache:Locks:Foo:{Id}? Or make a separate hash for them - ServiceCache:Locks with subkeys Foo:{Id}, or ServiceCache:Locks:Foo with subkeys {Id} ? How would I work around abandoned locks, say if a transaction (or a whole server) crashes while "holding" the lock?

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• How is this relation in 4th normal form? Is the dependency trivial?

  - by squ

  I have a question that concerns multi value dependency. The relation looks like this: R(A,B) with A -->> B (A multi value determines B) I've been told that this relation is in 4th normal form, but I don't really se how. I know that if the multi value dependency is trivial, then it doesn't violate the 4th normal form. But is this trivial? It would be trivial if it, for example, looked like this: {A,B} -->> B But the first dependency example shouldn't be trivial. The other rule for 4th NF says that A in this case needs to be a super key of the relation, but it isn't. As far as I can tell, A isn't a super key, since {A,B} is needed to identify a tuple. So the question is, why is this in 4th normal form? It seems to be violating both of the rules.

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• Rewriting Apache URLs to use only paths and set response headers

  - by jabley

  I have apache httpd in front of an application running in Tomcat. The application exposes URLs of the form: /path/to/images?id={an-image-id} The entities returned by such URLs are images (even though URIs are opaque, I find human-friendly ones are easier to work with!). The application does not set caching directives on the image response, so I've added that via Apache. # LocationMatch to set caching directives on image responses <LocationMatch "^/path/to/images$"> # Can't have Set-Cookie on response, otherwise the downstream caching proxy # won't cache! Header unset Set-Cookie # Mark the response as cacheable. Header append Cache-Control "max-age=8640000" </LocationMatch> Note that I can't use ExpiresByType since not all images served by the app have versioned URIs. I know that ones served by the /path/to/images resource handler are versioned URIs though, which don't perform any sort of content negotiation, and thus are ripe for Far Future Expires management. This is working well for us. Now a requirement has come up to put something else in front of the app (in this case, Amazon CloudFront) to further distribute and cache some of the content. Amazon CloudFront will not pass query string parameters through to my origin server. I thought I would be able to work around this, by changing my apache config appropriately: # Rewrite to map new Amazon CloudFront friendly URIs to the application resources RewriteRule ^/new/path/to/images/([0-9]+) /path/to/images?id=$1 [PT] # LocationMatch to set caching directives on image responses <LocationMatch "^/path/to/images$"> # Can't have Set-Cookie on response, otherwise the downstream caching proxy # won't cache! Header unset Set-Cookie # Mark the response as cacheable. Header append Cache-Control "max-age=8640000" </LocationMatch> This works fine in terms of serving the content, but there are no longer caching directives with the response. I've tried playing around with [PT], [P] for the RewriteRule, and adding a new LocationMatch directive: # Rewrite to map new Amazon CloudFront friendly URIs to the application resources # /new/path/to/images/12345 -> /path/to/images?id=12345 RewriteRule ^/new/path/to/images/([0-9]+) /path/to/images?id=$1 [PT] # LocationMatch to set caching directives on image responses <LocationMatch "^/path/to/images$"> # Can't have Set-Cookie on response, otherwise the downstream caching proxy # won't cache! Header unset Set-Cookie # Mark the response as cacheable. Header append Cache-Control "max-age=8640000" </LocationMatch> <LocationMatch "^/new/path/to/images/"> # Can't have Set-Cookie on response, otherwise the downstream caching proxy # won't cache! Header unset Set-Cookie # Mark the response as cacheable. Header append Cache-Control "max-age=8640000" </LocationMatch> Unfortunately, I'm still unable to get the Cache-Control header added to the response with the new URL format. Please point out what I'm missing to get /new/path/to/images/12345 returning a 200 response with a Cache-Control: max-age=8640000 header. Pointers as to how to debug apache like this would be appreciated as well!

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• Refresh QTextEdit in PyQt

  - by Mark Underwood

  Hi all, Im writing a PyQt app that takes some input in one widget, and then processes some text files. What ive got at the moment is when the user clicks the "process" button a seperate window with a QTextEdit in it pops up, and ouputs some logging messages. On Mac OS X this window is refreshed automatically and you cna see the process. On Windows, the window reports (Not Responding) and then once all the proccessing is done, the log output is shown. Im assuming I need to refresh the window after each write into the log, and ive had a look around at using a timer. etc, but havnt had much luck in getting it working. Below is the source code. It has two files, GUI.py which does all the GUI stuff and MOVtoMXF that does all the processing. GUI.py import os import sys import MOVtoMXF from PyQt4.QtCore import * from PyQt4.QtGui import * class Form(QDialog): def process(self): path = str(self.pathBox.displayText()) if(path == ''): QMessageBox.warning(self, "Empty Path", "You didnt fill something out.") return xmlFile = str(self.xmlFileBox.displayText()) if(xmlFile == ''): QMessageBox.warning(self, "No XML file", "You didnt fill something.") return outFileName = str(self.outfileNameBox.displayText()) if(outFileName == ''): QMessageBox.warning(self, "No Output File", "You didnt do something") return print path + " " + xmlFile + " " + outFileName mov1 = MOVtoMXF.MOVtoMXF(path, xmlFile, outFileName, self.log) self.log.show() rc = mov1.ScanFile() if( rc < 0): print "something happened" #self.done(0) def __init__(self, parent=None): super(Form, self).__init__(parent) self.log = Log() self.pathLabel = QLabel("P2 Path:") self.pathBox = QLineEdit("") self.pathBrowseB = QPushButton("Browse") self.pathLayout = QHBoxLayout() self.pathLayout.addStretch() self.pathLayout.addWidget(self.pathLabel) self.pathLayout.addWidget(self.pathBox) self.pathLayout.addWidget(self.pathBrowseB) self.xmlLabel = QLabel("FCP XML File:") self.xmlFileBox = QLineEdit("") self.xmlFileBrowseB = QPushButton("Browse") self.xmlLayout = QHBoxLayout() self.xmlLayout.addStretch() self.xmlLayout.addWidget(self.xmlLabel) self.xmlLayout.addWidget(self.xmlFileBox) self.xmlLayout.addWidget(self.xmlFileBrowseB) self.outFileLabel = QLabel("Save to:") self.outfileNameBox = QLineEdit("") self.outputFileBrowseB = QPushButton("Browse") self.outputLayout = QHBoxLayout() self.outputLayout.addStretch() self.outputLayout.addWidget(self.outFileLabel) self.outputLayout.addWidget(self.outfileNameBox) self.outputLayout.addWidget(self.outputFileBrowseB) self.exitButton = QPushButton("Exit") self.processButton = QPushButton("Process") self.buttonLayout = QHBoxLayout() #self.buttonLayout.addStretch() self.buttonLayout.addWidget(self.exitButton) self.buttonLayout.addWidget(self.processButton) self.layout = QVBoxLayout() self.layout.addLayout(self.pathLayout) self.layout.addLayout(self.xmlLayout) self.layout.addLayout(self.outputLayout) self.layout.addLayout(self.buttonLayout) self.setLayout(self.layout) self.pathBox.setFocus() self.setWindowTitle("MOVtoMXF") self.connect(self.processButton, SIGNAL("clicked()"), self.process) self.connect(self.exitButton, SIGNAL("clicked()"), self, SLOT("reject()")) self.ConnectButtons() class Log(QTextEdit): def __init__(self, parent=None): super(Log, self).__init__(parent) self.timer = QTimer() self.connect(self.timer, SIGNAL("timeout()"), self.updateText()) self.timer.start(2000) def updateText(self): print "update Called" AND MOVtoMXF.py import os import sys import time import string import FileUtils import shutil import re class MOVtoMXF: #Class to do the MOVtoMXF stuff. def __init__(self, path, xmlFile, outputFile, edit): self.MXFdict = {} self.MOVDict = {} self.path = path self.xmlFile = xmlFile self.outputFile = outputFile self.outputDirectory = outputFile.rsplit('/',1) self.outputDirectory = self.outputDirectory[0] sys.stdout = OutLog( edit, sys.stdout) class OutLog(): def __init__(self, edit, out=None, color=None): """(edit, out=None, color=None) -> can write stdout, stderr to a QTextEdit. edit = QTextEdit out = alternate stream ( can be the original sys.stdout ) color = alternate color (i.e. color stderr a different color) """ self.edit = edit self.out = None self.color = color def write(self, m): if self.color: tc = self.edit.textColor() self.edit.setTextColor(self.color) #self.edit.moveCursor(QtGui.QTextCursor.End) self.edit.insertPlainText( m ) if self.color: self.edit.setTextColor(tc) if self.out: self.out.write(m) self.edit.show() If any other code is needed (i think this is all that is needed) then just let me know. Any Help would be great. Mark

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• clojure.algo.monad strange m-plus behaviour with parser-m - why is second m-plus evaluated?

  - by Mark Fisher

  I'm getting unexpected behaviour in some monads I'm writing. I've created a parser-m monad with (def parser-m (state-t maybe-m)) which is pretty much the example given everywhere (here, here and here) I'm using m-plus to act a kind of fall-through query mechanism, in my case, it first reads values from a cache (database), if that returns nil, the next method is to read from "live" (a REST call). However, the second value in the m-plus list is always called, even though its value is disgarded (if the cache hit was good) and the final return is that of the first monadic function. Here's a cutdown version of the issue i'm seeing, and some solutions I found, but I don't know why. My questions are: Is this expected behaviour or a bug in m-plus? i.e. will the 2nd method in a m-plus list always be evaluated if the first item returns a value? Minor in comparison to the above, but if i remove the call _ (fetch-state) from checker, when i evaluate that method, it prints out the messages for the functions the m-plus is calling (when i don't think it should). Is this also a bug? Here's a cut-down version of the code in question highlighting the problem. It simply checks key/value pairs passed in are same as the initial state values, and updates the state to mark what it actually ran. (ns monods.monad-test (:require [clojure.algo.monads :refer :all])) (def parser-m (state-t maybe-m)) (defn check-k-v [k v] (println "calling with k,v:" k v) (domonad parser-m [kv (fetch-val k) _ (do (println "k v kv (= kv v)" k v kv (= kv v)) (m-result 0)) :when (= kv v) _ (do (println "passed") (m-result 0)) _ (update-val :ran #(conj % (str "[" k " = " v "]"))) ] [k v])) (defn filler [] (println "filler called") (domonad parser-m [_ (fetch-state) _ (do (println "filling") (m-result 0)) :when nil] nil)) (def checker (domonad parser-m [_ (fetch-state) result (m-plus ;; (filler) ;; intitially commented out deliberately (check-k-v :a 1) (check-k-v :b 2) (check-k-v :c 3))] result)) (checker {:a 1 :b 2 :c 3 :ran []}) When I run this as is, the output is: > (checker {:a 1 :b 2 :c 3 :ran []}) calling with k,v: :a 1 calling with k,v: :b 2 calling with k,v: :c 3 k v kv (= kv v) :a 1 1 true passed k v kv (= kv v) :b 2 2 true passed [[:a 1] {:a 1, :b 2, :c 3, :ran ["[:a = 1]"]}] I don't expect the line k v kv (= kv v) :b 2 2 true to show at all. The first function to m-plus (as seen in the final output) is what is returned from it. Now, I've found if I pass a filler into m-plus that does nothing (i.e. uncomment the (filler) line) then the output is correct, the :b value isn't evaluated. If I don't have the filler method, and make the first method test fail (i.e. change it to (check-k-v :a 2) then again everything is good, I don't get a call to check :c, only a and b are tested. From my understanding of what the state-t maybe-m transformation is giving me, then the m-plus function should look like: (defn m-plus [left right] (fn [state] (if-let [result (left state)] result (right state)))) which would mean that right isn't called unless left returns nil/false. I'd be interested to know if my understanding is correct or not, and why I have to put the filler method in to stop the extra evaluation (whose effects I don't want to happen). Apologies for the long winded post!

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• BizTalk 2009 - Naming Guidelines

  - by StuartBrierley

  The following is effectively a repost of the BizTalk 2004 naming guidlines that I have previously detailed.  I have posted these again for completeness under BizTalk 2009 and to allow an element of separation in case I find some reason to amend these for BizTalk 2009. These guidlines should be universal across any version of BizTalk you may wish to apply them to. General Rules All names should be named with a Pascal convention. Project Namespaces For message schemas: [CompanyName].XML.Schemas.[FunctionalName]* Examples:  ABC.XML.Schemas.Underwriting DEF.XML.Schemas.MarshmellowTradingExchange * Donates potential for multiple levels of functional name, such as Underwriting.Dictionary.Valuation For web services: [CompanyName].Web.Services.[FunctionalName] Examples: ABC.Web.Services.OrderJellyBeans For the main BizTalk Projects: [CompanyName].BizTalk.[AssemblyType].[FunctionalName]* Examples: ABC.BizTalk.Mappings.Underwriting ABC.BizTalk.Orchestrations.Underwriting * Donates potential for multiple levels of functional name, such as Mappings.Underwriting.Valuations Assemblies BizTalk Assembly names should match the associated Project Namespace, such as ABC.BizTalk.Mappings.Underwriting. This pertains to the formal assembly name and the DLL name. The Solution name should take the name of the main project within the solution, and also therefore the namespace for that project. Although long names such as this can be unwieldy to work with, the benefits of having the full scope available when the assemblies are installed on the target server are generally judged to outweigh this inconvenience. Messaging Artifacts Artifact Standard Notes Example Schema <DescriptiveName>.xsd   .NET Type name should match, without file extension.    .NET Namespace will likely match assembly name. PurchaseOrderAcknowledge_FF.xsd  or FNMA100330_FF.xsd Property Schema <DescriptiveName>.xsd Should be named to reflect possible common usage across multiple schemas  IspecMessagePropertySchema.xsd UnderwritingOrchestrationKeys.xsd Map <SourceSchema>2<DestinationSchema>.btm Exceptions to this may be made where the source and destination schemas share the majority of the name, such as in mainframe web service maps InstructionResponse2CustomEmailRequest.btm (exception example) AccountCustomerAddressSummaryRequest2MainframeRequest.btm Orchestration <DescriptiveName>.odx   GetValuationReports.odx SendMTEDecisionResponse.odx Send/Receive Pipeline <DescriptiveName>.btp   ValidatingXMLReceivePipeline.btp FlatFileAssembler.btp Receive Port A plainly worded phrase that will clearly explain the function.    FraudPreventionServices LetterProcessing   Receive Location A plainly worded phrase that will clearly explain the function.  ? Do we want to include the transport type here ? Arrears Web Service Send Port Group A plainly worded phrase that will clearly explain the function.   Customer Updates Send Port A plainly worded phrase that will clearly explain the function.    ABCProductUpdater LogLendingPolicyOutput Parties A meaningful name for a Trading Partner. If dealing with multiple entities within a Trading Partner organization, the Organization name could be used as a prefix.   Roles A meaningful name for the role that a Trading Partner plays.     Orchestration Workflow Shapes Shape Standard Notes Example Scopes <DescriptionOfContainedWork> or <DescOfcontainedWork><TxType>   Including info about transaction type may be appropriate in some situations where it adds significant documentation value to the diagram. HandleReportResponse         Receive Receive<MessageName> Typically, MessageName will be the same as the name of the message variable that is being received “into”. ReceiveReportResponse Send Send<MessageName> Typically, MessageName will be the same as the name of the message variable that is being sent. SendValuationDetailsRequest Expression <DescriptionOfEffect> Expression shapes should be named to describe the net effect of the expression, similar to naming a method.  The exception to this is the case where the expression is interacting with an external .NET component to perform a function that overlaps with existing BizTalk functionality – use closest BizTalk shape for this case. CreatePrintXML Decide <DescriptionOfDecision> A description of what will be decided in the “if” branch Report Type? Perform MF Save? If-Branch <DescriptionOfDecision> A (potentially abbreviated) description of what is being decided Mortgage Valuation Yes Else-Branch Else Else-branch shapes should always be named “Else” Else Construct Message (Assign) Create<Message> (for Construct)     <ExpressionDescription> (for expression) If a Construct shape contains a message assignment, it should be prefixed with “Create” followed by an abbreviated name of the message being assigned.    The actual message assignment shape contained should be named to describe the expression that is contained. CreateReportDataMV   which contains expression: ExtractReportData Construct Message (Transform) Create<Message> (for Construct)   <SourceSchema>2<DestSchema> (for transform) If a Construct shape contains a message transform, it should be prefixed with “Create” followed by an abbreviated name of the message being assigned.   The actual message transform shape contained should generally be named the same as the called map.  CreateReportDataMV   which contains transform: ReportDataMV2ReportDataMV                 Construct Message (containing multiple shapes)   If a Construct Message shape uses multiple assignments or transforms, the overall shape should be named to communicate the net effect, using no prefix.     Call/Start Orchestration Call<OrchestrationName>   Start<OrchestrationName>     Throw Throw<ExceptionType> The corresponding variable name for the exception type should (often) be the same name as the exception type, only camel-cased. ThrowRuleException, which references the “ruleException” variable.     Parallel <DescriptionOfParallelWork> Parallel shapes should be named by a description of what work will be done in parallel   Delay <DescriptionOfWhatWaitingFor> Delay shapes should be named by a description of what is being waited for.  POAcknowledgeTimeout Listen <DescriptionOfOutcomes> Listen shapes should be named by a description that captures (to the degree possible) all the branches of the Listen shape POAckOrTimeout FirstShippingBid Loop <DescriptionOfLoop> A (potentially abbreviated) description of what the loop is. ForEachValuationReport WhileErrorFlagTrue Role Link   See “Roles” in messaging naming conventions above.   Suspend <ReasonDescription> Describe what action an administrator must take to resume the orchestration.  More detail can be passed to error property – and should include what should be done by the administrator before resuming the orchestration. ReEstablishCreditLink Terminate <ReasonDescription> Describe why the orchestration terminated.  More detail can be passed to error property. TimeoutsExpired Call Rules Call<PolicyName> The policy name may need to be abbreviated. CallLendingPolicy Compensate Compensate or Compensate<TxName> If the shape compensates nested transactions, names should be suffixed with the name of the nested transaction – otherwise it should simple be Compensate. CompensateTransferFunds Orchestration Types Type Standard Notes Example Multi-Part Message Types <LogicalDocumentType>   Multi-part types encapsulate multiple parts.  The WSDL spec indicates “parts are a flexible mechanism for describing the logical abstract content of a message.”  The name of the multi-part type should correspond to the “logical” document type, i.e. what the sum of the parts describes. InvoiceReceipt   (which might encapsulate an invoice acknowledgement and a payment voucher.) Multi-Part Messsage Part <SchemaNameOfPart> Should be named (most often) simply for the schema (or simple type) associated with the part. InvoiceHeader Messages <SchemaName> or <MuliPartMessageTypeName> Should be named based on the corresponding schema type or multi-part message type.  If there is more than one variable of a type, name for its use within the orchestration. ReportDataMV UpdatedReportDataMV Variables <DescriptiveName>   TargetFilePath StringProcessor Port Types <FunctionDescription>PortType Should be named to suggest the nature of an endpoint, with pascal casing and suffixed with “PortType”.   If there will be more than one Port for a Port Type, the Port Type should be named according to the abstract service supplied.   The WSDL spec indicates port types are “a named set of abstract operations and the abstract messages involved” that also encapsulates the message pattern (i.e. one-way, request-response, solicit-response) that all operations on the port type adhere to. ReceiveReportResponsePortType  or CallEAEPortType (This is a two way port, so Receove or Send alone would not be appropriate.  Could have been ProcessEAERequestPortType etc....) Ports <FunctionDescription>Port Should be named to suggest a grouping of functionality, with pascal casing and suffixed with “Port.”  ReceiveReportResponsePort CallEAEPort Correlation types <DescriptiveName> Should be named based on the logical name of what is being used to correlate.  PurchaseOrderNumber Correlation sets <DescriptiveName> Should be named based on the corresponding correlation type.  If there is more than one, it should be named to reflect its specific purpose within the orchestration.   PurchaseOrderNumber Orchestration parameters <DescriptiveName> Should be named to match the caller’s names for the corresponding variables where appropriate.

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• Silverlight Cream for December 28, 2010 -- #1017

  - by Dave Campbell

  In this Issue: Davide Zordan, Alex Golesh, Michael S. Scherotter, Andrej Tozon, Alex Knight, Jeff Blankenburg(-2-), Jeremy Likness, and Laurent Bugnion. Above the Fold: Silverlight: "My “What’s new in Silverlight 4 demo” app" Andrej Tozon WP7: "Taking a screenshot from within a Silverlight #WP7 application" Laurent Bugnion Expression Blend: "PathListBox: getting started" Alex Knight Shoutouts: If you haven't seen this SurfCube app demo on YouTube yet... check it out now: SurfCube V1.0 Windows Phone 7 Browser Want to get a free WP7 class from Shawn Wildermuth? Check this out: Webinar: Writing your first Windows Phone 7 Application Koen Zwikstra announed the next preview of his great tool: Silverlight Spy Preview 2 From SilverlightCream.com: Using the Multi-Touch Behavior in a Windows Phone 7 Multi-Page application Davide Zordan has a post up responding to questions he receives about multi-touch on WP7 in applications spanning more than one page. Silverlight for Windows Phone 7 Quick Tip: Fix missing icons while using DatePicker/TimePicker controls Alex Golesh discusses the use of the DatePicker control from the WP7 toolkit and found an unpleasant surprise associated with the Done/Cancel icons in the ApplicationBar, and has a solution for us. Updated SMF Thumbnail Scrubbing Sample Code Michael S. Scherotter has a post up about an update he's done to Silverlight 4 of code that allows thumbnail views of a video while 'scrubbing' ... don't know what that is? read the post :) My “What’s new in Silverlight 4 demo” app Andrej Tozon admits he's a little behind with this post, but as he points out, it might be a good time to review Silverlight 4 features, on the eve of 5. PathListBox: getting started One half the Knight team -- Alex Knight this time, has the first post of a series on the PathListBox up ... some real Expression Blend goodness. What I Learned in WP7 – Issue #9 Two more from Jeff Blankenburg today, in his number 9, he starts off demonstrating passing data between pages when navigating and fnishes up with some excellent info for submitting apps to the marketplace. What I Learned in WP7 – #Issue 10 Jeff Blankenburg's number 10 elaborates on the query string data he discussed in number 9. Using Sterling in Windows Phone 7 Applications Who better than the author?? Jeremy Likness has an end-to-end WP7/Sterling app up on his blog... begin with downloading Sterling, discuss what's needed to support Tombstoning, even custom serialization. Taking a screenshot from within a Silverlight #WP7 application Laurent Bugnion has a post up describing something people have been looking for: getting a screenshot of a WP7 application's page. Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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• Using Amazon S3/Cloudfront and Encoding.com to deliver web video – step by step for iPhone/iPod/iPad

  - by joelvarty

    The Amazon AWS newsletter for May 2010 had a great link in it to this article by encoding.com on how you can use they service to encode your video for multi-format, multi-bandwidth streaming to many devices, including iPhone, iPad, and Flash with H264.   This looks like it doesn’t actually take advantage of CloudFront streaming, but merely splits your encoded files into the available chunks and includes all of the M3U8 files that point to the different bitrates and such.   This looks like a pretty sweet service in general, especially since they seem to have an API as well, so that may be very useful to those of you out there looking to host video. more later – joel

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• Installed Perl DBI Module Can't Be Found

  - by Russell C.

  I'm trying to setup a Perl development environment on my Mac laptop and have been having a really hard time getting it working. I thought I had everything configured correctly but when I try to run a sample script it is reporting errors with the DBI module and can't access the DB. Here is what is reported in the Apache error logs: [Fri Apr 30 23:11:33 2010] [error] [client 127.0.0.1] Can't locate DBI.pm in @INC (@INC contains: /Library/Perl/Updates/5.10.0/darwin-thread-multi-2level /Library/Perl/Updates/5.10.0 /System/Library/Perl/5.10.0/darwin-thread-multi-2level /System/Library/Perl/5.10.0 /Library/Perl/5.10.0/darwin-thread-multi-2level /Library/Perl/5.10.0 /Network/Library/Perl/5.10.0/darwin-thread-multi-2level /Network/Library/Perl/5.10.0 /Network/Library/Perl /System/Library/Perl/Extras/5.10.0/darwin-thread-multi-2level /System/Library/Perl/Extras/5.10.0 .) at main.pm line 5. I downloaded and installed both modules manually to work with MAMP using the following commands as specified in this forum post: For DBI 1. cd /Library/Perl/DBI-1.611 2. sudo Perl Makefile.PL 3. sudo make 4. sudo make install For DBD 1. cd /Library/Perl/DBD-mysql-4.014 2. sudo Perl Makefile.PL --mysql_config=/Applications/MAMP/Library/bin/mysql_config 3. sudo make 4. sudo make install What I noticed while running the above commands is that the files seems to be getting installed in the '/opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/' directory which doesn't seem to be one of the search directories that Apache mentions in the error at the beginning of this post. Here is what I'm seeing during the install: $ sudo make install Files found in blib/arch: installing files in blib/lib into architecture dependent library tree Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/auto/DBI/DBI.bundle Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/auto/DBI/dbipport.h Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/auto/DBI/DBIXS.h Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/auto/DBI/dbixs_rev.h Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/auto/DBI/Driver.xst Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/auto/DBI/Driver_xst.h Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/DBI.pm Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/TASKS.pod Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/DBD/DBM.pm Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/DBD/File.pm Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/DBD/Gofer.pm Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/DBI/Changes.pm Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/DBI/DBD.pm Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/DBI/Profile.pm Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/DBI/ProxyServer.pm Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/DBI/PurePerl.pm Installing /opt/local/share/man/man3/DBD::DBM.3pm Installing /opt/local/share/man/man3/DBD::File.3pm Installing /opt/local/share/man/man3/DBD::Gofer.3pm Installing /opt/local/share/man/man3/DBI.3pm Installing /opt/local/share/man/man3/DBI::DBD.3pm Installing /opt/local/share/man/man3/DBI::Profile.3pm Installing /opt/local/share/man/man3/DBI::ProxyServer.3pm Installing /opt/local/share/man/man3/DBI::PurePerl.3pm Installing /opt/local/share/man/man3/TASKS.3pm Installing /opt/local/bin/dbiprof Installing /opt/local/bin/dbiproxy Writing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/auto/DBI/.packlist Appending installation info to /opt/local/lib/perl5/5.8.9/darwin-2level/perllocal.pod My question is, what am I doing wrong and how can I either 1) Get Apache to look in the right directory where the DBD & DBI modules are installed or 2) Update the way I'm installing the module to install them into one of the search directories. I honestly don't know what option makes more sense and could use guidance on that as well. As you can probably tell I'm pretty lost at the moment. Please help!!!

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• How can I install Perl's DBI on Mac OS X so Apache can find it?

  - by Russell C.

  I'm trying to setup a Perl development environment on my Mac laptop and have been having a really hard time getting it working. I thought I had everything configured correctly but when I try to run a sample script it is reporting errors with the DBI module and can't access the DB. Here is what is reported in the Apache error logs: [Fri Apr 30 23:11:33 2010] [error] [client 127.0.0.1] Can't locate DBI.pm in @INC (@INC contains: /Library/Perl/Updates/5.10.0/darwin-thread-multi-2level /Library/Perl/Updates/5.10.0 /System/Library/Perl/5.10.0/darwin-thread-multi-2level /System/Library/Perl/5.10.0 /Library/Perl/5.10.0/darwin-thread-multi-2level /Library/Perl/5.10.0 /Network/Library/Perl/5.10.0/darwin-thread-multi-2level /Network/Library/Perl/5.10.0 /Network/Library/Perl /System/Library/Perl/Extras/5.10.0/darwin-thread-multi-2level /System/Library/Perl/Extras/5.10.0 .) at main.pm line 5. I downloaded and installed both modules manually to work with MAMP using the following commands as specified in this forum post: For DBI 1. cd /Library/Perl/DBI-1.611 2. sudo Perl Makefile.PL 3. sudo make 4. sudo make install For DBD 1. cd /Library/Perl/DBD-mysql-4.014 2. sudo Perl Makefile.PL --mysql_config=/Applications/MAMP/Library/bin/mysql_config 3. sudo make 4. sudo make install What I noticed while running the above commands is that the files seems to be getting installed in the '/opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/' directory which doesn't seem to be one of the search directories that Apache mentions in the error at the beginning of this post. Here is what I'm seeing during the install: $ sudo make install Files found in blib/arch: installing files in blib/lib into architecture dependent library tree Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/auto/DBI/DBI.bundle Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/auto/DBI/dbipport.h Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/auto/DBI/DBIXS.h Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/auto/DBI/dbixs_rev.h Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/auto/DBI/Driver.xst Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/auto/DBI/Driver_xst.h Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/DBI.pm Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/TASKS.pod Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/DBD/DBM.pm Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/DBD/File.pm Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/DBD/Gofer.pm Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/DBI/Changes.pm Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/DBI/DBD.pm Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/DBI/Profile.pm Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/DBI/ProxyServer.pm Installing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/DBI/PurePerl.pm Installing /opt/local/share/man/man3/DBD::DBM.3pm Installing /opt/local/share/man/man3/DBD::File.3pm Installing /opt/local/share/man/man3/DBD::Gofer.3pm Installing /opt/local/share/man/man3/DBI.3pm Installing /opt/local/share/man/man3/DBI::DBD.3pm Installing /opt/local/share/man/man3/DBI::Profile.3pm Installing /opt/local/share/man/man3/DBI::ProxyServer.3pm Installing /opt/local/share/man/man3/DBI::PurePerl.3pm Installing /opt/local/share/man/man3/TASKS.3pm Installing /opt/local/bin/dbiprof Installing /opt/local/bin/dbiproxy Writing /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level/auto/DBI/.packlist Appending installation info to /opt/local/lib/perl5/5.8.9/darwin-2level/perllocal.pod My question is, what am I doing wrong and how can I either 1) Get Apache to look in the right directory where the DBD & DBI modules are installed or 2) Update the way I'm installing the module to install them into one of the search directories. I honestly don't know what option makes more sense and could use guidance on that as well. As you can probably tell I'm pretty lost at the moment. Please help!!! Thanks in advance.

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• Oracle’s Web Experience Management

  - by Christie Flanagan

  Today’s guest post on Oracle’s Web Experience Management comes from a member of our WebCenter Evangelist team, Noël Jaffré, a Principal Technologist based in France.Oracle’s Web Experience Management (WEM) solution enables organizations to optimize the online channel for driving marketing and customer experience management success. It empowers business users to manage the web presence and create rich and engaging online experiences for customers and prospects. Oracle's WEM platform provides a framework to simplify the integration of Oracle, third-party and custom-built applications. This framework essentially allows the creation and integration of applications using one single business interface called the WEM interface. It includes the following: Single sign-on access control for all integrated applications using the Central Authentication Service (CAS) component. A single centralized administration window for user, role, and native applications management including site management. Community server management, gadget server management as well as management for partner integrated technologies. A Representational State Transfer (REST) API for accessing WebCenter Sites data. REST services are supported on both Oracle WebCenter Sites and Oracle WebCenter Sites Satellite Server to leverage the satellite server cache. All REST requests are cached for web consuming applications as well for the high performance delivery of native applications on the mobile channel. Oracle WebCenter Sites’ Web Experience Management environment enables organizations to deliver a compelling online experience to customers by simplifying the deployment and management of sophisticated and engaging websites. The WebCenter Sites platform automates the entire process of managing web content including: Authoring:  Business users can easily contribute and manage web content in real-time, with intuitive interfaces and drag-and-drop content authoring and layout capabilities designed for the non-technical user. Contextual Content Targeting: Marketers are empowered to create and manage targeted campaigns with relevant recommendations and promotions based on the context of the session of the visitor such as his or her navigation history, user profile, language, location or other information shared during the visitor session. Content Publishing and Deployment: It offers advanced multi-site management capabilities for departmental or regional sites, as well as strong multi-lingual and multi-locale content management. The remote satellite server caching infrastructure provides high-performance, distributed caching, tuned to deliver high-volume, targeted and multi-lingual sites. Analytics and Optimization: Business users and marketers have the ability to measure the effectiveness of their online content and campaigns at a granular level. Editors and marketers can immediately determine whether a given article or promotion is relevant to a particular customer segment. User-generated Content: Marketers can enable blogs, comments, rating and reviews on the website.  All comments and reviews posted to the website can be moderated from the administrator interface either manually or automatically using filters, whitelists, blacklists or community based moderation. Personalized Gadget Dashboards:  Site managers can deploy gadgets, small applications using web content, individually or as part of dashboards containing multiple gadgets.  These gadget dashboards enable site visitors to create their own “MyPage” on a given site where they can select and customize the gadgets that the site administrator has made available.  Any gadget that conforms to the iGoogle/OpenSocial standard can be made available to site visitors, or they can be created within the WEM interface. Oracle's WEM platform also provides a unique environment for the delivery of a rich, multichannel online experience for site visitors through its advanced management modules for mobile. With Oracle’s WEM solution, it’s easy to control branding and deliver a consistent message while repurposing web content for publication to mobile devices, kiosks and much more. This distinctive approach provides: HTML5 Delivery: HTML5 delivery which includes native support for adaptive design that responds to the user’s computer screen resolution and orientation. The approach is less driven by the particular hardware and more driven by the user’s interactions with the device. In other words, this approach takes both the screen interactions (either cursor or touch) and screen sizes and orientation into consideration. A Unique Native Mobile Extension Environment for Contributors: From the WEM interface, a contributor can directly manage their mobile channel, using the tooling already in place for driving the traditional web presence. This includes the mobile presentation, as well as mobile insite editing, drag and drop page layout, and in-context recommendations and personalization. Optimized REST APIs for High Performance Content Delivery on Native Mobile Device Applications: WebCenter Sites’ REST API uses the underlying HTTP methods (GET, POST, PUT, DELETE) to interact with resources. Resources support two types of input and output formats -- XML and JSON. REST calls are customizable to optimize the interactions between the content repositories and the client applications. Caching is essential to decrease network loads and improve overall reliability and usability of the applications and user interactions. REST results are cached through the highly efficient Oracle WebCenter Sites caching architecture.

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• Silverlight Cream for April 05, 2010 -- #831

  - by Dave Campbell

  In this Issue: Rénald Nollet, Davide Zordan(-2-, -3-), Scott Barnes, Kirupa, Christian Schormann, Tim Heuer, Yavor Georgiev, and Bea Stollnitz. Shoutouts: Yavor Georgiev posted the material for his MIX 2010 talk: what’s new in WCF in Silverlight 4 Erik Mork and crew posted their This Week in Silverlight 4.1.2010 Tim Huckaby and MSDN Bytes interviewed Erik Mork: Silverlight Consulting Life – MSDN Bytes Interview From SilverlightCream.com: Home Loan Application for Windows Phone Rénald Nollet has a WP7 app up, with source, for calculating Home Loan application information. He also discusses some control issues he had with the emulator. Experiments with Multi-touch: A Windows Phone Manipulation sample Davide Zordan has updated the multi-touch project on CodePlex, and added a WP7 sample using multi-touch. Silverlight 4, MEF and MVVM: EventAggregator, ImportingConstructor and Unit Tests Davide Zordan has a second post up on MEF, MVVM, and Prism, oh yeah, and also Unit Testing... the code is available, so take a look at what he's all done with this. Silverlight 4, MEF and MVVM: MEFModules, Dynamic XAP Loading and Navigation Applications Davide Zordan then builds on the previous post and partitions the app into several XAPs put together at runtime with MEF. Silverlight Installation/Preloader Experience - BarnesStyle Scott Barnes talks about the install experience he wanted to get put into place... definitely a good read and lots of information. Changing States using GoToStateAction Kirupa has a quick run-through of Visual States, and then demonstrates using GoToStateAction and a note for a Blend 4 addition. Blend 4: About Path Layout, Part IV Christian Schormann has the next tutorial up in his series on Path Layout, and he's explaining Motion Path and Text on a Path. Managing service references and endpoint configurations for Silverlight applications Helping solve a common and much reported problem of managing service references, Tim Heuer details his method of resolving it and additional tips and tricks to boot. Some known WCF issues in Silverlight 4 Yavor Georgiev, a Program Manager for WCF blogged about the issues that they were not able to fix due to scheduling of the release How can I update LabeledPieChart to use the latest toolkit? Bea Stollnitz revisits some of her charting posts to take advantage of the unsealing of toolkit classes in labeling the Chart and PieSeries Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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• Computer Visionaries 2014 Kinect Hackathon

  - by T

  Originally posted on: http://geekswithblogs.net/tburger/archive/2014/08/08/computer-visionaries-2014-kinect-hackathon.aspxA big thank you to Computer Vision Dallas and Microsoft for putting together the Computer Visionaries 2014 Kinect Hackathon that took place July 18th and 19th 2014.  Our team had a great time and learned a lot from the Kinect MVP's and Microsoft team.  The Dallas Entrepreneur Center was a fantastic venue. In total, 114 people showed up to form 15 teams. Burger ITS & Friends team members with Ben Lower:  Shawn Weisfeld, Teresa Burger, Robert Burger, Harold Pulcher, Taylor Woolley, Cori Drew (not pictured), and Katlyn Drew (not pictured) We arrived Friday after a long day of work/driving.  Originally, our idea was to make a learning game for kids.  It was intended to be multi-simultaneous players dragging and dropping tiles into a canvas area for kids around 5 years old. We quickly learned that we were limited to two simultaneous players. After working on the game for the rest of the evening and into the next morning we decided that a fast multi-player game with hand gestures was not going to happen without going beyond what was provided with the API. If we were going to have something to show, it was time to switch gears. The next idea on the table was the Photo Anywhere Kiosk. The user can use voice and hand gestures to pick a place they would like to be.  After the user says a place (or anything they want) and then the word "search", the app uses Bing to display a bunch of images for him/her to choose from. With the use of hand gesture (grab and slide to move back and forth and push/pull to select an image) the user can get the perfect image to pose with. I couldn't get a snippet with the hand but when a the app is in use, a hand shows up to cue the user to use their hand to control it's movement. Once they chose an image, we use the Kinect background removal feature to super impose the user on that image. When they are in the perfect position, they say "save" to save the image. Currently, the image is saved in the images folder on the users account but there are many possibilities such as emailing it, posting to social media, etc.. The competition was great and we were honored to be recognized for third place. Other related posts: http://jasongfox.com/computer-visionaries-2014-incredible-success/ A couple of us are continuing to work on the kid's game and are going to make it a Windows 8 multi-player game without Kinect functionality. Stay tuned for more updates.

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• terminate called after throwing an instance of 'std::length_error'

  - by mark

  hello all, this is my first post here. As i am newbie, the problem might be stupid. I was writing a piece of code while the following error message shown, terminate called after throwing an instance of 'std::length_error' what(): basic_string::_S_create /home/gcj/finals /home/gcj/quals where Aborted the following is the offending code especially Line 39 to Line 52. It is weired for me as this block of code is almost same as the Line64 to Line79. int main(){ std::vector<std::string> dirs, need; std::string tmp_str; std::ifstream fp_in("small.in"); std::ofstream fp_out("output"); std::string::iterator iter_substr_begin, iter_substr_end; std::string slash("/"); int T, N, M; fp_in>>T; for (int t = 0; t < T; t++){ std::cout<<" time "<< t << std::endl; fp_in >> N >> M; for (int n =0; n<N; n++){ fp_in>>tmp_str; dirs.push_back(tmp_str); tmp_str.clear(); } for (int m=0; m<M; m++){ fp_in>>tmp_str; need.push_back(tmp_str); tmp_str.clear(); } for (std::vector<std::string>::iterator iter = dirs.begin(); iter!=dirs.end(); iter++){ for (std::string::iterator iter_str = (*iter).begin()+1; iter_str<(*iter).end(); ++iter_str){ if ((*iter_str)=='/') { std::string tmp_str2((*iter).begin(), iter_str); if (find(dirs.begin(), dirs.end(), tmp_str2)==dirs.end()) { dirs.push_back(tmp_str2); } } } } for (std::vector<std::string>::iterator iter_tmp = dirs.begin(); iter_tmp!= dirs.end(); ++iter_tmp) std::cout<<*iter_tmp<<" "; dirs.clear(); std::cout<<std::endl; std::cout<<" need "<<std::endl; //processing the next for (std::vector<std::string>::iterator iter_tmp = need.begin(); iter_tmp!=need.end(); ++iter_tmp) std::cout<<*iter_tmp<<" "; std::cout<<" where "; for (std::vector<std::string>::iterator iter = need.begin(); iter!=need.end(); iter++){ for (std::string::iterator iter_str = (*iter).begin()+1; iter_str<(*iter).end(); ++iter_str){ if ((*iter_str)=='/') { std::string tmp_str2((*iter).begin(), iter_str); if (find(need.begin(), need.end(), tmp_str2)==need.end()) { need.push_back(tmp_str2); } } } } for (std::vector<std::string>::iterator iter_tmp = need.begin(); iter_tmp!= need.end(); ++iter_tmp) std::cout<<*iter_tmp<<" "; need.clear(); std::cout<<std::endl; //finish processing the next } for (std::vector<std::string>::iterator iter= dirs.begin(); iter!=dirs.end(); iter++) std::cout<<*iter<<" "; std::cout<<std::endl; for (std::vector<std::string>::iterator iter= need.begin(); iter!=need.end(); iter++) std::cout<<*iter<<" "; std::cout<<std::endl; fp_out.close(); } best regards, Mark

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• Castor3D en version 0.6.1.0, le moteur de rendu 3D en C++ supporte désormais OpenGL 3.x et 4.x

  Présentation Ce moteur 3D a l'ambition d'être multi-plateformes et multi-renderer. Pour l'instant, seul le développement sous Windows est exploitable (je galère pour la création d'une fenêtre compatible OpenGL sous Linux). Seul le Renderer OpenGL est implémenté (je n'ai aucune connaissance en Direct3D). La reconnaissance des Shaders est implémentée, uniquement la partie GLSL pour l'instant, on verra un jour pour intégrer Cg. Pas encore de LOD ni de gestion OcTree pour l'instant, mais c'est prévu. Support de plusieurs formats de fichiers : Obj, 3DS, MD2, MD3, PLY. Le système d'animation a un squelette qu'il me faut compléter afin d'avoir une implémentation correcte d'un système d'animation avec ou sans squeleton (...

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• Networking Programs Suitable For Symbolic Testing

  - by Milen

  Symbolic execution has been successfully used to test programs and automatically generate test cases. I've been working on my master's thesis that allows the testing of arbitrary networked programs (i.e., those communicating via sockets). Now that we have a working symbolic execution engine that has support for sockets, we're looking for real-world pieces of software to test. Our engine has an important restriction (at the moment): it cannot execute multi-threaded programs. So, we're looking for programs that satisfy the criteria outlined below: Written in C Communicates via sockets (TCP / UDP are supported) Does not rely on the filesystem to get the "job" done Runs on Linux Does not use multi-threading Source is available (so that we can compile them to LLVM bytecode) Most programs that would fall under the criteria would probably be implementations of distributed protocols solving a particular problem (e.g., consensus). Any suggestions are greatly appreciated.

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• Talend Enterprise Data Integration overperforms on Oracle SPARC T4

  - by Amir Javanshir

  The SPARC T microprocessor, released in 2005 by Sun Microsystems, and now continued at Oracle, has a good track record in parallel execution and multi-threaded performance. However it was less suited for pure single-threaded workloads. The new SPARC T4 processor is now filling that gap by offering a 5x better single-thread performance over previous generations. Following our long-term relationship with Talend, a fast growing ISV positioned by Gartner in the “Visionaries” quadrant of the “Magic Quadrant for Data Integration Tools”, we decided to test some of their integration components with the T4 chip, more precisely on a T4-1 system, in order to verify first hand if this new processor stands up to its promises. Several tests were performed, mainly focused on: Single-thread performance of the new SPARC T4 processor compared to an older SPARC T2+ processor Overall throughput of the SPARC T4-1 server using multiple threads The tests consisted in reading large amounts of data --ten's of gigabytes--, processing and writing them back to a file or an Oracle 11gR2 database table. They are CPU, memory and IO bound tests. Given the main focus of this project --CPU performance--, bottlenecks were removed as much as possible on the memory and IO sub-systems. When possible, the data to process was put into the ZFS filesystem cache, for instance. Also, two external storage devices were directly attached to the servers under test, each one divided in two ZFS pools for read and write operations. Multi-thread: Testing throughput on the Oracle T4-1 The tests were performed with different number of simultaneous threads (1, 2, 4, 8, 12, 16, 32, 48 and 64) and using different storage devices: Flash, Fibre Channel storage, two stripped internal disks and one single internal disk. All storage devices used ZFS as filesystem and volume management. Each thread read a dedicated 1GB-large file containing 12.5M lines with the following structure: customerID;FirstName;LastName;StreetAddress;City;State;Zip;Cust_Status;Since_DT;Status_DT 1;Ronald;Reagan;South Highway;Santa Fe;Montana;98756;A;04-06-2006;09-08-2008 2;Theodore;Roosevelt;Timberlane Drive;Columbus;Louisiana;75677;A;10-05-2009;27-05-2008 3;Andrew;Madison;S Rustle St;Santa Fe;Arkansas;75677;A;29-04-2005;09-02-2008 4;Dwight;Adams;South Roosevelt Drive;Baton Rouge;Vermont;75677;A;15-02-2004;26-01-2007 […] The following graphs present the results of our tests: Unsurprisingly up to 16 threads, all files fit in the ZFS cache a.k.a L2ARC : once the cache is hot there is no performance difference depending on the underlying storage. From 16 threads upwards however, it is clear that IO becomes a bottleneck, having a good IO subsystem is thus key. Single-disk performance collapses whereas the Sun F5100 and ST6180 arrays allow the T4-1 to scale quite seamlessly. From 32 to 64 threads, the performance is almost constant with just a slow decline. For the database load tests, only the best IO configuration --using external storage devices-- were used, hosting the Oracle table spaces and redo log files. Using the Sun Storage F5100 array allows the T4-1 server to scale up to 48 parallel JVM processes before saturating the CPU. The final result is a staggering 646K lines per second insertion in an Oracle table using 48 parallel threads. Single-thread: Testing the single thread performance Seven different tests were performed on both servers. Given the fact that only one thread, thus one file was read, no IO bottleneck was involved, all data being served from the ZFS cache. Read File ? Filter ? Write File: Read file, filter data, write the filtered data in a new file. The filter is set on the “Status” column: only lines with status set to “A” are selected. This limits each output file to about 500 MB. Read File ? Load Database Table: Read file, insert into a single Oracle table. Average: Read file, compute the average of a numeric column, write the result in a new file. Division & Square Root: Read file, perform a division and square root on a numeric column, write the result data in a new file. Oracle DB Dump: Dump the content of an Oracle table (12.5M rows) into a CSV file. Transform: Read file, transform, write the result data in a new file. The transformations applied are: set the address column to upper case and add an extra column at the end, which is the concatenation of two columns. Sort: Read file, sort a numeric and alpha numeric column, write the result data in a new file. The following table and graph present the final results of the tests: Throughput unit is thousand lines per second processed (K lines/second). Improvement is the % of improvement between the T5140 and T4-1. Test T4-1 (Time s.) T5140 (Time s.) Improvement T4-1 (Throughput) T5140 (Throughput) Read/Filter/Write 125 806 645% 100 16 Read/Load Database 195 1111 570% 64 11 Average 96 557 580% 130 22 Division & Square Root 161 1054 655% 78 12 Oracle DB Dump 164 945 576% 76 13 Transform 159 1124 707% 79 11 Sort 251 1336 532% 50 9 The improvement of single-thread performance is quite dramatic: depending on the tests, the T4 is between 5.4 to 7 times faster than the T2+. It seems clear that the SPARC T4 processor has gone a long way filling the gap in single-thread performance, without sacrifying the multi-threaded capability as it still shows a very impressive scaling on heavy-duty multi-threaded jobs. Finally, as always at Oracle ISV Engineering, we are happy to help our ISV partners test their own applications on our platforms, so don't hesitate to contact us and let's see what the SPARC T4-based systems can do for your application! "As describe in this benchmark, Talend Enterprise Data Integration has overperformed on T4. I was generally happy to see that the T4 gave scaling opportunities for many scenarios like complex aggregations. Row by row insertion in Oracle DB is faster with more than 650,000 rows per seconds without using any bulk Oracle capabilities !" Cedric Carbone, Talend CTO.

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• More Suggestions of Multitasking in iPhone OS 4.0

  Rumors indicate that the next version of the iPhone OS may allow multi-tasking for non-Apple apps.

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• Superpower Your Touchpad Computer with Scrybe

  - by Matthew Guay

  Are you looking for a way to help your Touchpad computer make you more productive?  Here’s a quick look at Scrybe, a new application from Synaptics that lets you superpower it. Touchpad devices have become increasingly more interesting as they’ve included support for multi-touch gestures.  Scrybe takes it to the next level and lets you use your touchpad as an application launcher.  You can launch any application, website, or complete many common commands on your computer with a simple gesture.  Scrybe works with most modern Synaptics touchpads, which are standard on most laptops and netbooks.  It is optimized for newer multi-touch touchpads, but can also work with standard single-touch touchpads.  It works on Windows 7, Vista, and XP, so chances are it will work with your laptop or netbook. Get Started With Scrybe Head over to the Scrybe website and download the latest version (link below).  You are asked to enter your email address, name, and information about your computer…but you actually only have to enter your email address.  Click Download when finished. Run the installer when it’s download.  It will automatically download the latest Synaptics driver for your touchpad and any other components needed for Scrybe.  Note that the Scrybe installer will ask to install the Yahoo! toolbar, so uncheck this to avoid adding this worthless browser toolbar. Using Scrybe To open an application or website with a gesture, press 3 fingers on your touchpad at once, or if your touchpad doesn’t support multi-touch gestures, then press Ctrl+Alt and press 1 finger on your touchpad.  This will open the Scrype input pane; start drawing a gesture, and you’ll see it on the grey square.  The input pane shows some default gestures you can try. Here we drew an “M”, which opens our default Music player.  As soon as you finish the gesture and lift up your finger, Scrybe will open the application or website you selected. A notification balloon will let you know what gesture was preformed. When you’re entering your gesture, the input pane will show white “ink”.  The “ink” will turn blue if the command is recognized, but will turn red if it isn’t.  If Scrybe doesn’t recognize your command, press 3 fingers and try again. Scrybe Control Panel You can open the Scrybe Control panel to enter or change commands by entering a box-like gesture, or right-clicking the Scrybe icon in your system tray and selecting “Scrybe Control Panel”. Scrybe has many pre-configured gestures that you can preview and even practice. All of the gestures in the Popular tab are preset and cannot be changed.  However, the ones in the favorites tab can be edited.  Select the gesture you wish to edit, and click the gear icon to change it.  Here we changed the email gesture to open Hotmail instead of the default Yahoo Mail. Scrybe can also help you perform many common Windows commands such as Copy and Undo.  Select the Tools tab to see all of these commands.   Scrybe has many settings you may wish to change.  Select the Preferences button in the Control Panel to change these.  Here’s some of the settings we changed. Uncheck “Display a message” to turn off the tooltip notifications when you enter a gesture Uncheck “Show symbol hints” to turn off the sidebar on the input pane Select the search engine you want to open with the Search Gesture.  The default is Yahoo, but you can choose your favorite. Adding a new Scrybe Gesture The default Scrybe options are useful, but the best part is that you can assign gestures to your own programs or websites.  Open the Scrybe control panel, and click the plus sign on the bottom left corner.  Enter a name for your gesture, and then choose if it is for a website or an application. If you want the gesture to open a website, enter the address in the box. Alternately, if you want your gesture to open an application, select Launch Application and then either enter the path to the application, or click the button beside the Launch field and browse to it. Now click the down arrow on the blue box and choose one of the gestures for your application or website. Your new gesture will show up under the Favorites tab in the Scrybe control panel, and you can use it whenever you want from Scrybe, or practice the gesture by selecting the Practice button. Conclusion If you enjoy multi-touch gestures, you may find Scrybe very useful on your laptop or netbook.  Scrybe recognizes gestures fairly easily, even if you don’t enter them perfectly correctly.  Just like pinch-to-zoom and two-finger scroll, Scrybe can quickly become something you miss on other laptops. Download Scrybe (registration required) Similar Articles Productive Geek Tips Fixing Firefox Scrolling Problems with Dell Synaptics TouchpadRemove Synaptics Touchpad Icon from System TrayRoll Back Troublesome Device Drivers in Windows VistaChange Your Computer Name in Windows 7 or VistaLet Somebody Use Your Computer Without Logging Off in Ubuntu TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Acronis Online Backup DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows Fun with 47 charts and graphs Tomorrow is Mother’s Day Check the Average Speed of YouTube Videos You’ve Watched OutlookStatView Scans and Displays General Usage Statistics How to Add Exceptions to the Windows Firewall Office 2010 reviewed in depth by Ed Bott

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• Ct Technology: A Flexible Parallel Programming Model for Multicore and Many-Core Architectures

  Ct leverages the strengths of data parallel programming to help address challenges of software development for multicore and many-core Parallel computing - Multi-core processor - Programming - Microsoft - Languages

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• Announcement Oracle Solaris Cluster 4.1 Availability!

  - by uwes

  On 26th of October Oracle announced the availability of Oracle Solaris Cluster 4.1. Highlights include: New Oracle Solaris 10 Zone Clusters: customers can now consolidate mission critical Oracle Solaris 10 applications on Oracle Solaris 11 virtualized systems in a virtual cluster Expanded disaster recovery operations: Oracle Solaris Cluster now offers managed switchover and disaster-recovery takeover of applications and data using ZFS Storage Appliance replication services in a multi-site, multi-custer configuration Faster application recovery with improved storage failure detection and resource dependencies management New labeled security environment for mission-critical deployments in Oracle Solaris Zone Clusters with Oracle Solaris 11 Trusted Extensions Learn more about Oracle Solaris Cluster 4.1: What's New in Oracle Solaris 4.1 Oracle Solaris Cluster 4.1 FAQ Oracle.com Oracle Solaris Cluster page Oracle Technology Network Oracle Solaris Cluster page Resouces for downloading: Oracle Solaris Cluster 4.1 download or order a media kit Existing Oracle Solaris Cluster 4.0 customers can quickly and simply update by using the network based repository.   Note: This repository requires keys and certificates which can be obtained here.

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