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  • executorservice to read data from database in chuncks and run process on them

    - by TazMan
    I'm trying to write a process that would read data from a database and upload it onto a cloud datastore. How can I decide the partition strategy of the data? I want to query the table in chunks and process each chunk in 10 threads. Each thread basically will send the data to an individual node on a 10 node cluster on the cloud.. Where in the below multi threading code will the dataquery to extract and send 10 concurrent requests for uploading data to cloud would be? public class Caller { public static void main(String[] args) { ExecutorService executor = Executors.newFixedThreadPool(10); for (int i = 0; i < 10; i++) { Runnable worker = new DomainCDCProcessor(i); executor.execute(worker); } executor.shutdown(); while (!executor.isTerminated()) { } System.out.println("Finished all threads"); } }

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  • Cost vs. Fun - Dilemma about learning a serverside language [closed]

    - by Ixx
    I want to learn a new server-side language. I already know Java. I'm fascinated by Scala, have read about it a lot, and want to get practical experience. But I also have some concerns of practical nature - I want to do the backend for many small, non-profit apps, and pay the lowest price for hosting possible. I also want that other people can easily contribute to these apps, if applicable. This leads me in PHP's direction. But I don't like PHP and would like to use these small projects to learn Scala instead. You see the problem, I don't want to pay more money each month, from my own pocket, for hosting. But I want to use these projects to learn Scala. Is there a practical solution for this?

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  • .NET Compact Framework 3.9 : compatibilité avec VS 2012, gain de performance et support du multi-core pour l'outil

    .NET Compact Framework 3.9 sera compatible avec Visual Studio 2012 gain de performance et support du multi-coeur pour la version embarquée de .NET Microsoft a dévoilé la semaine dernière sa feuille de route pour l'ensemble de ses systèmes d'exploitation embarqués. L'éditeur prévoit de publier au second trimestre de l'année prochaine Windows Embedded Compact 2013, son OS destiné aux terminaux tactiles légers. Dans cette version, sera inclus le Framework .NET Compact (NETCF) 3.9, la prochaine mise à jour de la plateforme de développement pour l'embarqué. Pour rappel, .NET Framework Compact est une version du Framework .NET pour les périphériques embarqués. Il f...

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  • PotgreSQL 2D array to rows

    - by PostGreSQL newbie
    Hello, I am new to PostgreSQL array's. I am trying to a write a procedure to convert array-into-rows, and wanted following output: alphabet | number ---------+---------- A | 10 B | 10 C | 6 D | 9 E | 3 from following: id | alphabet_series -------+-------------------------------------------------------------------------------------------------- 1 | {{A,10},{B,10},{C,6},{D,9},{E,3},{F,9},{I,10},{J,17},{K,16},{L,17},{M,20},{N,13},{O,19}} I have searched for array-to-rows functions, but they all seems to accept 1-d array. but in this case, it is 2-d array. Any pointers will be appreciated. Many thanks.

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  • why my unit testing taken more than normal time to run in VS 2010 Premium [on hold]

    - by kombo
    I have only 4 proeject in my solutions. Am trying to run a unit test for one of my class in one of the project. I Create the unit test by: Right clicking on the class choose the create unit test option. I followed the wizard to the end.which resulting the test creation. I just pass the values of the parameter and run the test. but my test keep running. Both surprisingly it runs on other developers pc. NB:My class is connecting to the database and my application is asp.net web form. i know this is not recommended but i want to have my test running now. i have tried alot of samples on the internet but still my problem persist. Could any one tell me the cause of the extreme slowness(more than 30 minutes)

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  • successives operations with C++

    - by Tayeb Ghagha
    How can I perform this code: if a number n is divisible by 3, add 4 to n; if n is not divisible by 3 but by 4, divise n by 2; if n is not divisible by 3, not by 4, make n=n-1. The problem with me is that I don't know how to make this successively. For example: with the number 6, I have to have: 6, 10, 9, 13, 12, 16, 8, 4, 2, 1 et 0 6+4=10; 10-1=9; 9+4=13; 13-1=12; 12+4=16; 16/2=8.....0 This makes 10 operations. So my program has to return: 6---10 Thank you for help

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  • Caluculating sum of activity

    - by Maddy
    I have a table which is with following kind of information activity cost order date other information 10 1 100 -- 20 2 100 10 1 100 30 4 100 40 4 100 20 2 100 40 4 100 20 2 100 10 1 101 10 1 101 20 1 101 My requirement is to get sum of all activities over a work order ex: for order 100 1+2+4+4=11 1(for activity 10) 2(for activity 20) 4 (for activity 30) etc. i tried with group by, its taking lot time for calculation. There are 1lakh plus records in warehouse. is there any possibility in efficient way. SELECT SUM(MIN(cost)) FROM COST_WAREHOUSE a WHERE order = 100 GROUP BY (order, ACTIVITY)

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  • ???TCO?????????!? WebLogic Server vs. JBoss Enterprise Application Platform

    - by Tatsuhiro Yamaguchi
    WebLogic Server?????????????Java EE??????????·?????JBoss Enterprise Application Platform(EAP)????????????????WebLogic Server?????????JBoss EAP????????????????????????????????????????TCO(??????)???????????...?????????????????????????1?????????????????????????????????TCO?JBoss EAP??WebLogic Server??????????????????????(???) ????????????????????????WebLogic Server??Java????????????? Java EE??????????·???????????WebLogic Server????????????????????·?????????????????????JBoss EAP??JBoss EAP?????????????????????·??????????????????????????????????????????????????????????????????? ????????·?????????????????????????????????1?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ????????????????Java??????????????????????????Java SE 6?????????????2013?2????????????????????????????????????????? ?????? Java SE 6????????????????(Oracle Technology Network) ???????????????JBoss EAP 5????Java SE 6??????????2013?2??????????????????????????????????????? ?????2012?8????????????JBoss EAP 6????????? ????Java SE 7?????????Java SE 7?????????????2014?7??????????JBoss EAP 6????????????2013??????????????????????????????Java SE 7???????????????1????????????????????????????Java SE 7????????????????????Java SE??????????????????????????????? ???????WebLogic Server??????????????????Java SE???????????????????Java SE 6?2016?12????Java SE 7?????2019?7???????????????????????????????????????????WebLogic Server????????????????????????????????Java SE??????????? JBoss EAP?????????????????Java SE????????????Java SE???????????????????????WebLogic Server??????????????????JBoss EAP?????????????????????????????????? ??????????????????WebLogic Server?????????????????? ??????????????????JBoss EAP?WebLogic Server????????????1????????????????WebLogic Server????????????????????????????????????????????????????????????????? ???JBoss EAP?????????????????????????????????????????????????????????????????????????????????????????WebLogic Server??????????????????????? ?????????????????????????????????????????????WebLogic Server?JBoss EAP?????????????????????????????????????????????????????????????????????????????????????????????????????WebLogic Server?JBoss EAP????????????? ??????????????? 3~6????????WebLogic Server????????????????????????WebLogic Server??? ??????????????????????????????????????????????????? JBoss EAP??2????????????24??365????????????Premium?????(??~??)9?~5????????????Standard??????????????????????????(CPU?????????????16??)???????????6???????????????????? · JBoss EAP Standard · JBoss EAP Premium » ???????:?0 » ???????:?0 » ??????:?85?/1?? » ??????:?125?/1?? » 6?????:?85?×6?=?510? » 6?????:?125?×6=?750? ???WebLogic Server???????????????????????????????/?????????CPU??????(CPU????????)?8???CPU?2?(CPU???=16??)??????????????????????6?????????????? · WebLogic Server Standard Edition » ???????:?216?(?108?×2CPU) » ????:?48?/1??(?24?×2CPU) ?????????22% » 6?????:?216+?48?×6=?504? ????JBoss EAP Standard??Premium?WebLogic Server Standard Edition???????????????????? ???????JBoss EAP Premium???3?????Standard??6????????????? ???????????WebLogic Server Standard Edition?????????????????????JBoss EAP????CPU??????????WebLogic Server Standard Edition?CPU?????????????1CPU????????????????????WebLogic Server Standard Edition????????????? ?????WebLogic Server??Java???????????????????????????????????????JBoss EAP?????????????Java SE????????????????????????WebLogic Server???????? ????WebLogic Server???????????????????????????????????JBoss EAP???????????????????????????????????????WebLogic Server?????????????????????WebLogic Server??????????????·??????????????????? ???2012?9????Oracle Technolorgy Network???????????WebLogic Server???????????????????????????????????????????????????????? ????????????????????????????????JBoss EAP????TCO???????????????????????????????????WebLogic Server????????????????????????????WebLogic Server????????????????????????????????????????????

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  • Apps crashing with EXC_BAD_ACCESS when changing to a custom keyboard layout

    - by Adam Lindberg
    I have a custom layout installed (svdvorak_mac6.keylayout). After a reboot another keyboard layout was selected, so I selected my usual one instead. This lead to a lot of apps suddenly starting to crash (Chrome, Skype, Adium etc). I can change to any other built in layout for OS X, but as soon as I choose one custom installed one (either form ~/Library/Keyboard Layouts/ or from /Library/Keyboard Layouts/) the apps crash. The only thing I can remember that I did before the reboot was to install Google's video chat plugin for the browser. Here's the crash report from Adium: Process: Adium [372] Path: /Applications/Adium.app/Contents/MacOS/Adium Identifier: com.adiumX.adiumX Version: 1.4.1 (1.4.1) Code Type: X86 (Native) Parent Process: launchd [182] Date/Time: 2010-12-22 22:39:47.833 +0100 OS Version: Mac OS X 10.6.5 (10H574) Report Version: 6 Interval Since Last Report: 257401 sec Crashes Since Last Report: 39 Per-App Interval Since Last Report: 1178959 sec Per-App Crashes Since Last Report: 8 Anonymous UUID: 7CBACDEB-FBAF-4CD5-9C15-7AEA8AC4B5EF Exception Type: EXC_BAD_ACCESS (SIGBUS) Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000000 Crashed Thread: 0 Dispatch queue: com.apple.main-thread Thread 0 Crashed: Dispatch queue: com.apple.main-thread 0 com.apple.HIToolbox 0x99722b6d islGetInputSourceProperty + 1107 1 com.apple.HIToolbox 0x9972262c TSMGetInputSourceProperty + 526 2 com.apple.HIToolbox 0x9972787a _ISSendWindowServerKeyboardLayoutUpdate + 412 3 com.apple.HIToolbox 0x9972622b _TSMSetInputSourceSelected + 1429 4 com.apple.HIToolbox 0x99980209 TSMMessagePortCallBack + 574 5 com.apple.CoreFoundation 0x9226840c __CFMessagePortPerform + 540 6 com.apple.CoreFoundation 0x921d34db __CFRunLoopRun + 6523 7 com.apple.CoreFoundation 0x921d1464 CFRunLoopRunSpecific + 452 8 com.apple.CoreFoundation 0x921d1291 CFRunLoopRunInMode + 97 9 com.apple.HIToolbox 0x99717f58 RunCurrentEventLoopInMode + 392 10 com.apple.HIToolbox 0x99717d0f ReceiveNextEventCommon + 354 11 com.apple.HIToolbox 0x99717b94 BlockUntilNextEventMatchingListInMode + 81 12 com.apple.AppKit 0x9189478d _DPSNextEvent + 847 13 com.apple.AppKit 0x91893fce -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 156 14 com.apple.AppKit 0x91856247 -[NSApplication run] + 821 15 com.apple.AppKit 0x9184e2d9 NSApplicationMain + 574 16 com.adiumX.adiumX 0x0000322e 0x1000 + 8750 Thread 1: Dispatch queue: com.apple.libdispatch-manager 0 libSystem.B.dylib 0x968f5982 kevent + 10 1 libSystem.B.dylib 0x968f609c _dispatch_mgr_invoke + 215 2 libSystem.B.dylib 0x968f5559 _dispatch_queue_invoke + 163 3 libSystem.B.dylib 0x968f52fe _dispatch_worker_thread2 + 240 4 libSystem.B.dylib 0x968f4d81 _pthread_wqthread + 390 5 libSystem.B.dylib 0x968f4bc6 start_wqthread + 30 Thread 2: 0 libSystem.B.dylib 0x968f4a12 __workq_kernreturn + 10 1 libSystem.B.dylib 0x968f4fa8 _pthread_wqthread + 941 2 libSystem.B.dylib 0x968f4bc6 start_wqthread + 30 Thread 3: com.apple.CFSocket.private 0 libSystem.B.dylib 0x968ee0c6 select$DARWIN_EXTSN + 10 1 com.apple.CoreFoundation 0x92211c83 __CFSocketManager + 1091 2 libSystem.B.dylib 0x968fc85d _pthread_start + 345 3 libSystem.B.dylib 0x968fc6e2 thread_start + 34 Thread 4: 0 libSystem.B.dylib 0x968f4a12 __workq_kernreturn + 10 1 libSystem.B.dylib 0x968f4fa8 _pthread_wqthread + 941 2 libSystem.B.dylib 0x968f4bc6 start_wqthread + 30 Thread 5: 0 libSystem.B.dylib 0x968cf15a semaphore_timedwait_signal_trap + 10 1 libSystem.B.dylib 0x968fcce5 _pthread_cond_wait + 1066 2 libSystem.B.dylib 0x9692bac8 pthread_cond_timedwait_relative_np + 47 3 ...apple.AddressBook.framework 0x9310043f -[ABRemoteImageLoader workLoop] + 283 4 com.apple.Foundation 0x97822bf0 -[NSThread main] + 45 5 com.apple.Foundation 0x97822ba0 __NSThread__main__ + 1499 6 libSystem.B.dylib 0x968fc85d _pthread_start + 345 7 libSystem.B.dylib 0x968fc6e2 thread_start + 34 Thread 6: 0 libSystem.B.dylib 0x968cf0fa mach_msg_trap + 10 1 libSystem.B.dylib 0x968cf867 mach_msg + 68 2 com.apple.CoreFoundation 0x921d237f __CFRunLoopRun + 2079 3 com.apple.CoreFoundation 0x921d1464 CFRunLoopRunSpecific + 452 4 com.apple.CoreFoundation 0x921d1291 CFRunLoopRunInMode + 97 5 com.apple.Foundation 0x9785b7d0 +[NSURLConnection(NSURLConnectionReallyInternal) _resourceLoadLoop:] + 329 6 com.apple.Foundation 0x97822bf0 -[NSThread main] + 45 7 com.apple.Foundation 0x97822ba0 __NSThread__main__ + 1499 8 libSystem.B.dylib 0x968fc85d _pthread_start + 345 9 libSystem.B.dylib 0x968fc6e2 thread_start + 34 Thread 0 crashed with X86 Thread State (32-bit): eax: 0x00000670 ebx: 0x9972272e ecx: 0x00000000 edx: 0x00000002 edi: 0xa0c3b214 esi: 0x00000004 ebp: 0xbfffe6c8 esp: 0xbfffe660 ss: 0x0000001f efl: 0x00010202 eip: 0x99722b6d cs: 0x00000017 ds: 0x0000001f es: 0x0000001f fs: 0x00000000 gs: 0x00000037 cr2: 0x00000000 Binary Images: 0x1000 - 0x1a0ff7 +com.adiumX.adiumX 1.4.1 (1.4.1) <136586E8-F3F5-99ED-DB1F-48C0027686CB> /Applications/Adium.app/Contents/MacOS/Adium 0x1f9000 - 0x23efe7 +AIUtilities ??? (???) <565A1BC2-4B50-6277-D127-AFBF01F90CE3> /Applications/Adium.app/Contents/Frameworks/AIUtilities.framework/Versions/A/AIUtilities 0x2af000 - 0x307ff7 +com.adiumX.AdiumPurple ??? (1.0) <F4C2A8E4-695E-7CCE-41F3-F8960AFDC149> /Applications/Adium.app/Contents/Frameworks/AdiumLibpurple.framework/Versions/A/AdiumLibpurple 0x34b000 - 0x3ddfe7 +Adium ??? (???) <774A171B-ED45-D221-6A37-486AA15C8BA5> /Applications/Adium.app/Contents/Frameworks/Adium.framework/Versions/A/Adium 0x439000 - 0x510ff7 +com.googlepages.openspecies.rtool.libglib 2.0.0 (2.0.0) <C620AA58-CFC4-855E-1F2F-F84D9335CD5D> /Applications/Adium.app/Contents/Frameworks/libglib.framework/Versions/2.0.0/libglib 0x53d000 - 0x53eff7 +com.googlepages.openspecies.rtool.libgmodule 2.0.0 (2.0.0) <11FF9396-454A-394B-1B12-D84AD535F6F6> /Applications/Adium.app/Contents/Frameworks/libgmodule.framework/Versions/2.0.0/libgmodule 0x542000 - 0x578fe7 +com.googlepages.openspecies.rtool.libgobject 2.0.0 (2.0.0) <D69FB8D0-D271-EC20-42DD-04FCC65A72BF> /Applications/Adium.app/Contents/Frameworks/libgobject.framework/Versions/2.0.0/libgobject 0x58e000 - 0x590ff7 +com.googlepages.openspecies.rtool.libgthread 2.0.0 (2.0.0) <5D4B8DC6-28E3-9285-8E2A-2D7A3CBE11C5> /Applications/Adium.app/Contents/Frameworks/libgthread.framework/Versions/2.0.0/libgthread 0x594000 - 0x59eff7 +com.googlepages.openspecies.rtool.libintl 8 (8) <343C9F94-8840-4465-64E4-86A0092AD69F> /Applications/Adium.app/Contents/Frameworks/libintl.framework/Versions/8/libintl 0x5a3000 - 0x5cbff7 +com.googlepages.openspecies.rtool.libmeanwhile 1 (1) <7B341D44-FA86-F7C3-E800-7D1169EB9CE2> /Applications/Adium.app/Contents/Frameworks/libmeanwhile.framework/Versions/1/libmeanwhile 0x5e0000 - 0x81bff7 +libpurple 8.5.0 (compatibility 8.0.0) <DEB5CE6C-2A4A-16CA-E0EF-DDE812865406> /Applications/Adium.app/Contents/Frameworks/libpurple.framework/Versions/0/libpurple 0x8c3000 - 0x978fe7 libcrypto.0.9.7.dylib 0.9.7 (compatibility 0.9.7) <AACC86C0-86B4-B1A7-003F-2A0AF68973A2> /usr/lib/libcrypto.0.9.7.dylib 0x9be000 - 0x9ccff7 +com.dpompa.fribidi ??? (1.0) <EA8AEBCF-DFE5-85FB-5C0E-EB3AB5B0A950> /Applications/Adium.app/Contents/Frameworks/FriBidi.framework/Versions/A/FriBidi 0x21d2000 - 0x21e1fe7 +AutoHyperlinks ??? (???) <A8B5F9E1-E259-F33F-9E60-F4E37B1ED500> /Applications/Adium.app/Contents/Frameworks/AutoHyperlinks.framework/Versions/A/AutoHyperlinks 0x21e7000 - 0x21f3ff7 +net.brockerhoff.RBSplitView.Framework 1.1.4 (1.1.4) <D92691AA-294F-A85D-E7E1-01AD0A0717D2> /Applications/Adium.app/Contents/Frameworks/RBSplitView.framework/Versions/A/RBSplitView 0x21fb000 - 0x220efff +org.andymatuschak.Sparkle 1.5 Beta (bzr) (340) <E0109DBE-F614-66D0-9B82-6151BC40DAD7> /Applications/Adium.app/Contents/Frameworks/Sparkle.framework/Versions/A/Sparkle 0x221c000 - 0x226cfef +com.adiumX.OTR ??? (1.0) <BAE9D6BD-60D5-B53B-19BC-C17287F55EE9> /Applications/Adium.app/Contents/Frameworks/OTR.framework/Versions/A/OTR 0x227d000 - 0x2280ff7 +org.boredzo.LMX ??? (1.0) <92632179-5CFB-EA6B-AAE7-5F4B98BF0CD9> /Applications/Adium.app/Contents/Frameworks/LMX.framework/Versions/A/LMX 0x2286000 - 0x228dff1 +net.oauth.OAuthConsumer ??? (0.1.1) <025882EC-04DA-763B-18F5-5266A5D185FD> /Applications/Adium.app/Contents/Frameworks/OAuthConsumer.framework/Versions/A/OAuthConsumer 0x2296000 - 0x22a6fe7 +com.googlepages.openspecies.rtool.libjson-glib 1.0.0 (1.0.0) <016CAFB1-DD85-3C9D-411C-C696D9D57213> /Applications/Adium.app/Contents/Frameworks/libjson-glib.framework/Versions/1.0.0/libjson-glib 0x2784000 - 0x2788ff3 com.apple.audio.AudioIPCPlugIn 1.1.6 (1.1.6) <F402CF88-D96C-42A0-3207-49759F496AE8> /System/Library/Extensions/AudioIPCDriver.kext/Contents/Resources/AudioIPCPlugIn.bundle/Contents/MacOS/AudioIPCPlugIn 0x278d000 - 0x2793ffb com.apple.audio.AppleHDAHALPlugIn 1.9.9 (1.9.9f12) <82BFF5E9-2B0E-FE8B-8370-445DD94DA434> /System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn 0x15fda000 - 0x15fdcff7 apop.so ??? (???) <B365DF5B-6A00-9595-27FF-4811B12B1C19> /usr/lib/sasl2/apop.so 0x15fe0000 - 0x15fe9ff7 digestmd5WebDAV.so ??? (???) <FC8C0A3E-1BC3-5016-95E1-E7EF9FF37242> /usr/lib/sasl2/digestmd5WebDAV.so 0x15fee000 - 0x15ff0ff7 libanonymous.2.so ??? (???) <41A1E196-0AB4-1ADD-6362-BB53A0E57ABA> /usr/lib/sasl2/libanonymous.2.so 0x15ff4000 - 0x15ff6ff7 libcrammd5.2.so ??? (???) <032F08C3-2D26-F956-4799-1012A1BBCB71> /usr/lib/sasl2/libcrammd5.2.so 0x15ffa000 - 0x15ffcff7 login.so ??? (???) <4E0B45F7-243E-A3FD-AA75-EF653590BF17> /usr/lib/sasl2/login.so 0x16100000 - 0x16116ff7 dhx.so ??? (???) <B50D8278-4246-4086-E0AF-3CBE96AE9837> /usr/lib/sasl2/dhx.so 0x16123000 - 0x1612bff7 libdigestmd5.2.so ??? (???) <E8D78B02-D51C-F2CB-C4BA-AC9231ED8006> /usr/lib/sasl2/libdigestmd5.2.so 0x16130000 - 0x16135ff7 libgssapiv2.2.so ??? (???) <193995B9-1C15-BEB2-40B7-1598D82F29BB> /usr/lib/sasl2/libgssapiv2.2.so 0x1613a000 - 0x1613fff7 libntlm.so ??? (???) <F97C955D-E521-216F-E8F0-79E8C907217A> /usr/lib/sasl2/libntlm.so 0x16144000 - 0x1614bff7 libotp.2.so ??? (???) <3DF61F7F-4929-A37D-01CB-9A7A90E3B9B7> /usr/lib/sasl2/libotp.2.so 0x16152000 - 0x16154ff7 libplain.2.so ??? (???) <5CC9D89A-9656-EEE8-64AB-E61A22FA8465> /usr/lib/sasl2/libplain.2.so 0x16158000 - 0x1615cff7 libpps.so ??? (???) <C5A25A99-412E-AD7F-D6FD-C4CC07B7B2A5> /usr/lib/sasl2/libpps.so 0x16161000 - 0x16164ff7 mschapv2.so ??? (???) <34DFB657-5E2E-5B83-713B-F57ACFB1E091> /usr/lib/sasl2/mschapv2.so 0x16169000 - 0x1616bff7 shadow_auxprop.so ??? (???) <4073854F-B4C8-A0D4-C0FF-7A0C93BFC70E> /usr/lib/sasl2/shadow_auxprop.so 0x16170000 - 0x16172ff7 smb_lm.so ??? (???) <4B7A54D8-241D-CC8C-8759-4C7DC562369D> /usr/lib/sasl2/smb_lm.so 0x16177000 - 0x1617aff7 smb_nt.so ??? (???) <7B7D31B1-10A1-1AE9-E323-C19A3C52DC03> /usr/lib/sasl2/smb_nt.so 0x1617f000 - 0x16182ff7 smb_ntlmv2.so ??? (???) <3BFE5AA9-F215-36B5-E7D7-46BE1BFD63EA> /usr/lib/sasl2/smb_ntlmv2.so 0x194c1000 - 0x19639fe7 GLEngine ??? (???) <A4BBE58C-1211-0473-7B78-C3BA7AC29C9B> /System/Library/Frameworks/OpenGL.framework/Resources/GLEngine.bundle/GLEngine 0x1966b000 - 0x19a70fe7 libclh.dylib 3.1.1 C (3.1.1) <D1A3D8AD-0FED-4AD2-AB43-CF804B7BDBF9> /System/Library/Extensions/GeForceGLDriver.bundle/Contents/MacOS/libclh.dylib 0x19ae8000 - 0x19b0cfe7 GLRendererFloat ??? (???) <EFE5EC6D-74B2-37A2-92E4-526A2EF6B791> /System/Library/Frameworks/OpenGL.framework/Resources/GLRendererFloat.bundle/GLRendererFloat 0x8f0c8000 - 0x8f811ff7 com.apple.GeForceGLDriver 1.6.24 (6.2.4) <DCC16E52-B1F1-90E6-E839-D30DF4CBA468> /System/Library/Extensions/GeForceGLDriver.bundle/Contents/MacOS/GeForceGLDriver 0x8fe00000 - 0x8fe4162b dyld 132.1 (???) <39AC3185-E633-68AA-7CD6-1230E7F1CEF4> /usr/lib/dyld 0x90003000 - 0x90005fe7 com.apple.ExceptionHandling 1.5 (10) <03218275-EBEC-39AA-895A-BA72A5FDBB7A> /System/Library/Frameworks/ExceptionHandling.framework/Versions/A/ExceptionHandling 0x90006000 - 0x90074ff7 com.apple.QuickLookUIFramework 2.3 (327.6) <74706A08-5399-24FE-00B2-4A702A6B83C1> /System/Library/Frameworks/Quartz.framework/Versions/A/Frameworks/QuickLookUI.framework/Versions/A/QuickLookUI 0x90075000 - 0x900b2ff7 com.apple.SystemConfiguration 1.10.5 (1.10.2) <362DF639-6E5F-9371-9B99-81C581A8EE41> /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfiguration 0x900fa000 - 0x901d5feb com.apple.DesktopServices 1.5.9 (1.5.9) <CED00AC1-924B-0E45-7D5E-1CEA8929F5BE> /System/Library/PrivateFrameworks/DesktopServicesPriv.framework/Versions/A/DesktopServicesPriv 0x901d6000 - 0x9021aff3 com.apple.coreui 2 (114) <2234855E-3BED-717F-0BFA-D1A289ECDBDA> /System/Library/PrivateFrameworks/CoreUI.framework/Versions/A/CoreUI 0x9021b000 - 0x9021bff7 com.apple.CoreServices 44 (44) <51CFA89A-33DB-90ED-26A8-67D461718A4A> /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices 0x90258000 - 0x90302fe7 com.apple.CFNetwork 454.11.5 (454.11.5) <D8963574-285A-3BD6-6B25-07D39C6F67A4> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CFNetwork.framework/Versions/A/CFNetwork 0x90303000 - 0x9033efeb libFontRegistry.dylib ??? (???) <4FB144ED-8AF9-27CF-B315-DCE5575D5231> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/Versions/A/Resources/libFontRegistry.dylib 0x90342000 - 0x90366ff7 libJPEG.dylib ??? (???) <46AF3A0F-2B8D-87B9-62D4-0905678A64DA> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libJPEG.dylib 0x90367000 - 0x9036afe7 libmathCommon.A.dylib 315.0.0 (compatibility 1.0.0) <1622A54F-1A98-2CBE-B6A4-2122981A500E> /usr/lib/system/libmathCommon.A.dylib 0x9036b000 - 0x903d5fe7 libstdc++.6.dylib 7.9.0 (compatibility 7.0.0) <411D87F4-B7E1-44EB-F201-F8B4F9227213> /usr/lib/libstdc++.6.dylib 0x903d6000 - 0x903daff7 IOSurface ??? (???) <D849E1A5-6B0C-2A05-2765-850EC39BA2FF> /System/Library/Frameworks/IOSurface.framework/Versions/A/IOSurface 0x903db000 - 0x903edff7 com.apple.MultitouchSupport.framework 207.10 (207.10) <E1A6F663-570B-CE54-0F8A-BBCCDECE3B42> /System/Library/PrivateFrameworks/MultitouchSupport.framework/Versions/A/MultitouchSupport 0x90437000 - 0x90470ff7 libcups.2.dylib 2.8.0 (compatibility 2.0.0) <D6F24434-8217-DF72-2126-1953080680D7> /usr/lib/libcups.2.dylib 0x9049b000 - 0x904ccff7 libGLImage.dylib ??? (???) <78F59EAB-BBD4-7366-CA84-970547501978> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLImage.dylib 0x904ec000 - 0x909a5ffb com.apple.VideoToolbox 0.484.20 (484.20) <E7B9F015-2569-43D7-5268-375ED937ECA5> /System/Library/PrivateFrameworks/VideoToolbox.framework/Versions/A/VideoToolbox 0x909a6000 - 0x90ab5fe7 com.apple.WebKit 6533.19 (6533.19.4) <A942073C-83DF-33ED-3D01-A24DE8AEAB3D> /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit 0x90ab6000 - 0x90ae6ff7 com.apple.MeshKit 1.1 (49.2) <5A74D1A4-4B97-FE39-4F4D-E0B80F0ADD87> /System/Library/PrivateFrameworks/MeshKit.framework/Versions/A/MeshKit 0x90cc5000 - 0x90cfdff7 com.apple.LDAPFramework 2.0 (120.1) <131ED804-DD88-D84F-13F8-D48E0012B96F> /System/Library/Frameworks/LDAP.framework/Versions/A/LDAP 0x90cfe000 - 0x90f61fef com.apple.security 6.1.1 (37594) <1949216A-7583-B73A-6112-4D55CA5852E3> /System/Library/Frameworks/Security.framework/Versions/A/Security 0x90f62000 - 0x90f64ff7 com.apple.securityhi 4.0 (36638) <E7D83480-77BB-72F9-72F3-AEE198CE589F> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/SecurityHI.framework/Versions/A/SecurityHI 0x90f65000 - 0x910e7fe7 libicucore.A.dylib 40.0.0 (compatibility 1.0.0) <35DB7644-0780-D2AB-F6A9-45F28D2D434A> /usr/lib/libicucore.A.dylib 0x910e8000 - 0x91217fe3 com.apple.audio.toolbox.AudioToolbox 1.6.5 (1.6.5) <0A0F68E5-4806-DB51-764B-D97554B801AD> /System/Library/Frameworks/AudioToolbox.framework/Versions/A/AudioToolbox 0x91218000 - 0x91538ff3 com.apple.CoreServices.CarbonCore 861.23 (861.23) <B08756E4-32C5-CC33-0268-7C00A5ED7537> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/CarbonCore 0x91539000 - 0x91578ff7 com.apple.ImageCaptureCore 1.0.3 (1.0.3) <7E02D104-F31C-CF72-71B4-DA5DF7B48337> /System/Library/Frameworks/ImageCaptureCore.framework/Versions/A/ImageCaptureCore 0x91579000 - 0x915b0fe7 libssl.0.9.8.dylib 0.9.8 (compatibility 0.9.8) <7DCB5938-3140-E71A-92BD-8C242F30C8F5> /usr/lib/libssl.0.9.8.dylib 0x915c4000 - 0x9163ffff com.apple.AppleVAFramework 4.10.12 (4.10.12) <89C4EBE2-FE27-3160-0BD1-D0C2ED5F3605> /System/Library/PrivateFrameworks/AppleVA.framework/Versions/A/AppleVA 0x91640000 - 0x91742fef com.apple.MeshKitIO 1.1 (49.2) <D0401AC5-1F92-2BBB-EBAB-58EDD3BA61B9> /System/Library/PrivateFrameworks/MeshKit.framework/Versions/A/Frameworks/MeshKitIO.framework/Versions/A/MeshKitIO 0x91743000 - 0x91744ff7 com.apple.audio.units.AudioUnit 1.6.5 (1.6.5) <BE4C2495-B758-AD22-DCC0-56A6791E948E> /System/Library/Frameworks/AudioUnit.framework/Versions/A/AudioUnit 0x91769000 - 0x91777fe7 libz.1.dylib 1.2.3 (compatibility 1.0.0) <33C1B260-ED05-945D-FC33-EF56EC791E2E> /usr/lib/libz.1.dylib 0x91778000 - 0x9179afef com.apple.DirectoryService.Framework 3.6 (621.9) <F2EEE9D7-D4FB-14F3-E647-ABD32754F557> /System/Library/Frameworks/DirectoryService.framework/Versions/A/DirectoryService 0x9184c000 - 0x9212cff7 com.apple.AppKit 6.6.7 (1038.35) <ABC7783C-E4D5-B848-BED6-99451D94D120> /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit 0x9212d000 - 0x9218efe7 com.apple.CoreText 3.5.0 (???) <BB50C045-25F5-65B8-B1DB-8CDAEF45EB46> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreText.framework/Versions/A/CoreText 0x9218f000 - 0x92194ff7 com.apple.OpenDirectory 10.6 (10.6) <C1B46982-7D3B-3CC4-3BC2-3E4B595F0231> /System/Library/Frameworks/OpenDirectory.framework/Versions/A/OpenDirectory 0x92195000 - 0x92310fe7 com.apple.CoreFoundation 6.6.4 (550.42) <C78D5079-663E-9734-7AFA-6CE79A0539F1> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation 0x92311000 - 0x92351ff3 com.apple.securityinterface 4.0.1 (37214) <43CE8A8D-64E5-F36E-4900-FBB1BD6557F1> /System/Library/Frameworks/SecurityInterface.framework/Versions/A/SecurityInterface 0x92352000 - 0x92355ff7 libCGXType.A.dylib 545.0.0 (compatibility 64.0.0) <B624AACE-991B-0FFA-2482-E69970576CE1> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libCGXType.A.dylib 0x924b9000 - 0x925fcfef com.apple.QTKit 7.6.6 (1756) <4D809734-4E1B-8E18-C825-86C5422FC3DC> /System/Library/Frameworks/QTKit.framework/Versions/A/QTKit 0x925fd000 - 0x9260dff7 libsasl2.2.dylib 3.15.0 (compatibility 3.0.0) <E276514D-394B-2FDD-6264-07A444AA6A4E> /usr/lib/libsasl2.2.dylib 0x92615000 - 0x92618ff7 libCoreVMClient.dylib ??? (???) <1F738E81-BB71-32C5-F1E9-C1302F71021C> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libCoreVMClient.dylib 0x9262c000 - 0x92652ffb com.apple.DictionaryServices 1.1.2 (1.1.2) <43E1D565-6E01-3681-F2E5-72AE4C3A097A> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/DictionaryServices.framework/Versions/A/DictionaryServices 0x9294d000 - 0x9295dff7 com.apple.DSObjCWrappers.Framework 10.6 (134) <95DC4010-ECC4-3A75-5DEE-11BB2AE895EE> /System/Library/PrivateFrameworks/DSObjCWrappers.framework/Versions/A/DSObjCWrappers 0x9295e000 - 0x929a0ff7 libvDSP.dylib 268.0.1 (compatibility 1.0.0) <8A4721DE-25C4-C8AA-EA90-9DA7812E3EBA> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libvDSP.dylib 0x929a1000 - 0x929abfe7 com.apple.audio.SoundManager 3.9.3 (3.9.3) <DE0E0EF6-8190-3F65-6BDD-5AC9D8A025D6> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/CarbonSound.framework/Versions/A/CarbonSound 0x929ac000 - 0x92a5cff3 com.apple.ColorSync 4.6.3 (4.6.3) <0354B408-665F-8B3F-87FF-64E6322276F0> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ColorSync.framework/Versions/A/ColorSync 0x92a5d000 - 0x92c3ffff com.apple.imageKit 2.0.3 (1.0) <B4DB05F7-01C5-35EE-7AB9-41BD9D63F075> /System/Library/Frameworks/Quartz.framework/Versions/A/Frameworks/ImageKit.framework/Versions/A/ImageKit 0x92cf5000 - 0x92d4bff7 com.apple.MeshKitRuntime 1.1 (49.2) <CB9F38B1-E107-EA62-EDFF-02EE79F6D1A5> /System/Library/PrivateFrameworks/MeshKit.framework/Versions/A/Frameworks/MeshKitRuntime.framework/Versions/A/MeshKitRuntime 0x92d4c000 - 0x92d55ff7 com.apple.DiskArbitration 2.3 (2.3) <6AA6DDF6-AFC3-BBDB-751A-64AE3580A49E> /System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration 0x92dc6000 - 0x92df8fe3 libTrueTypeScaler.dylib ??? (???) <6E9D1A50-330E-F1F4-F93D-9ECC8A61B21A> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/Versions/A/Resources/libTrueTypeScaler.dylib 0x92e7a000 - 0x92e88ff7 com.apple.opengl 1.6.11 (1.6.11) <286D1BC4-4CD8-3CD4-F723-5C196FE15FE0> /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL 0x92e89000 - 0x92ec7ff7 com.apple.QuickLookFramework 2.3 (327.6) <66955C29-0C99-D02C-DB18-4952AFB4E886> /System/Library/Frameworks/QuickLook.framework/Versions/A/QuickLook 0x92ec8000 - 0x92f92fef com.apple.CoreServices.OSServices 357 (357) <3A26F553-722D-3536-EEDE-FB41FCDAA7FD> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServices.framework/Versions/A/OSServices 0x92f93000 - 0x92f97ff7 libGIF.dylib ??? (???) <DA5758A4-71B0-DD6E-7402-B7FB15387569> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libGIF.dylib 0x92f98000 - 0x93099fe7 libxml2.2.dylib 10.3.0 (compatibility 10.0.0) <ED8E45C6-B078-15E8-938D-99D8FD1EAE64> /usr/lib/libxml2.2.dylib 0x9309a000 - 0x932a1feb com.apple.AddressBook.framework 5.0.3 (875) <759B660B-00F6-F08C-37CD-69468C774B5E> /System/Library/Frameworks/AddressBook.framework/Versions/A/AddressBook 0x932a2000 - 0x933aeff7 libGLProgrammability.dylib ??? (???) <8B308FAE-843F-EE76-0254-3374CBFFA7B3> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLProgrammability.dylib 0x933bf000 - 0x933c2ffb com.apple.help 1.3.1 (41) <6A5AD406-9D8E-5BAC-51E1-E09AB9A6D159> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Help.framework/Versions/A/Help 0x933c3000 - 0x9372eff7 com.apple.QuartzCore 1.6.3 (227.34) <CC1C1631-D8D1-D416-171E-A1683274E479> /System/Library/Frameworks/QuartzCore.framework/Versions/A/QuartzCore 0x9372f000 - 0x93740ff7 com.apple.LangAnalysis 1.6.6 (1.6.6) <3036AD83-4F1D-1028-54EE-54165E562650> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/LangAnalysis.framework/Versions/A/LangAnalysis 0x93741000 - 0x93755ffb com.apple.speech.synthesis.framework 3.10.35 (3.10.35) <9F5CE4F7-D05C-8C14-4B76-E43D07A8A680> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/SpeechSynthesis.framework/Versions/A/SpeechSynthesis 0x93790000 - 0x937e1ff7 com.apple.HIServices 1.8.1 (???) <51BDD848-32A5-2425-BE07-BD037A89630A> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/HIServices.framework/Versions/A/HIServices 0x937e2000 - 0x937e2ff7 liblangid.dylib ??? (???) <FCC37057-CDD7-2AF1-21AF-52A06C4048FF> /usr/lib/liblangid.dylib 0x937e3000 - 0x93a0eff3 com.apple.QuartzComposer 4.2 ({156.28}) <08AF01DC-110D-9443-3916-699DBDED0149> /System/Library/Frameworks/Quartz.framework/Versions/A/Frameworks/QuartzComposer.framework/Versions/A/QuartzComposer 0x93a17000 - 0x93a21ffb com.apple.speech.recognition.framework 3.11.1 (3.11.1) <7486003F-8FDB-BD6C-CB34-DE45315BD82C> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/SpeechRecognition.framework/Versions/A/SpeechRecognition 0x93a22000 - 0x93a28fff com.apple.CommonPanels 1.2.4 (91) <CE92759E-865E-8A3B-1488-ECD497E4074D> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/CommonPanels.framework/Versions/A/CommonPanels 0x93b47000 - 0x93b94feb com.apple.DirectoryService.PasswordServerFramework 6.0 (6.0) <27F3FF53-F818-9836-2101-3E963FE0C0E0> /System/Library/PrivateFrameworks/PasswordServer.framework/Versions/A/PasswordServer 0x93b95000 - 0x93c30ff7 com.apple.ApplicationServices.ATS 4.4 (???) <ECB16606-4DF8-4AFB-C91D-F7947C26040F> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/Versions/A/ATS 0x93c31000 - 0x93c31ff7 com.apple.quartzframework 1.5 (1.5) <7DD4EBF1-60C4-9329-08EF-6E59731D9430> /System/Library/Frameworks/Quartz.framework/Versions/A/Quartz 0x93d51000 - 0x93d72fe7 com.apple.opencl 12.3 (12.3) <DEA600BF-4F54-66B5-DB2F-DC57FD518543> /System/Library/Frameworks/OpenCL.framework/Versions/A/OpenCL 0x93d73000 - 0x93e77fe7 libcrypto.0.9.8.dylib 0.9.8 (compatibility 0.9.8) <BDEFA030-5E75-7C47-2904-85AB16937F45> /usr/lib/libcrypto.0.9.8.dylib 0x93e78000 - 0x93ef8feb com.apple.SearchKit 1.3.0 (1.3.0) <7AE32A31-2B8E-E271-C03A-7A0F7BAFC85C> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/SearchKit.framework/Versions/A/SearchKit 0x93ef9000 - 0x93f68ff7 libvMisc.dylib 268.0.1 (compatibility 1.0.0) <595A5539-9F54-63E6-7AAC-C04E1574B050> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libvMisc.dylib 0x93f69000 - 0x94122feb com.apple.ImageIO.framework 3.0.4 (3.0.4) <C145139E-24C4-5A3D-B17C-809D528354B2> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/ImageIO 0x94123000 - 0x94166ff7 com.apple.NavigationServices 3.5.4 (182) <8DC6FD4A-6C74-9C23-A4C3-715B44A8D28C> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/NavigationServices.framework/Versions/A/NavigationServices 0x941a0000 - 0x941fafe7 com.apple.CorePDF 1.3 (1.3) <EA168671-F44F-BFE4-AA7D-3801DA29A650> /System/Library/PrivateFrameworks/CorePDF.framework/Versions/A/CorePDF 0x941fb000 - 0x94258ff7 com.apple.framework.IOKit 2.0 (???) <A769737F-E0D6-FB06-29B4-915CF4F43420> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit 0x94259000 - 0x9425dff7 libGFXShared.dylib ??? (???) <C3A805C4-C0E5-B300-430A-7E811395CB8E> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGFXShared.dylib 0x942ef000 - 0x9439dff3 com.apple.ink.framework 1.3.3 (107) <233A981E-A2F9-56FB-8BDE-C2DEC3F20784> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Ink.framework/Versions/A/Ink 0x9439e000 - 0x94b8d557 com.apple.CoreGraphics 1.545.0 (???) <1AB39678-00D5-FB88-3B41-93D78348E0DE> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/CoreGraphics 0x94b8e000 - 0x94bd7fe7 libTIFF.dylib ??? (???) <AC1FC806-F7F4-174B-375F-FE5D6008666C> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libTIFF.dylib 0x94e21000 - 0x94f4ffe7 com.apple.CoreData 102.1 (251) <87FE6861-F2D6-773D-ED45-345272E56463> /System/Library/Frameworks/CoreData.framework/Versions/A/CoreData 0x95ea3000 - 0x95ee6ff7 libGLU.dylib ??? (???) <F8580594-0B38-F3ED-A715-CB3776B747A0> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLU.dylib 0x95eef000 - 0x95f71ffb SecurityFoundation ??? (???) <A8D248DE-8670-970D-39E3-A9738CFDBEE1> /System/Library/Frameworks/SecurityFoundation.framework/Versions/A/SecurityFoundation 0x95f72000 - 0x95f7fff7 com.apple.NetFS 3.2.1 (3.2.1) <94A52A6D-F071-09D7-E80F-F633F17233FE> /System/Library/Frameworks/NetFS.framework/Versions/A/NetFS 0x95f80000 - 0x95f82ff7 libRadiance.dylib ??? (???) <10048B4A-2AE8-A4E2-21B8-C6E7A8C5B76F> snip... Superuser character limit :-(

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  • SSH Socks Proxy wiith iptables REDIRECT

    - by Radium
    I have googled and haven`t found the answer on my question. Help me please. There are two servers: serverA with public IP 12.0.0.10 and an private IP 10.0.0.5 serverB with public IP 20.0.0.11 I have setup SOCKS proxy on serverB to serverA: ssh -D20.0.0.11:2222 [email protected].10 So when on my local machine in a browser i specify SOCKS proxy 20.0.0.11:2222 (serverB:2222) as external IP while browsing i get 12.0.0.10 (serverA IP). That is ok. As well if i go onto http://10.0.0.5 (serverA private IP) it is also reachable. That is what i need. I want to make servers A private IP to be available through servers B public IP on certain ports but without specifying SOCKS in my browser. I could use ssh port forward but the problem is - i need to forward many ports and do not know which exactly - i know only the range. So when i connect to 20.0.0.11 to any port , for example, from 3000:4000 range, i want that traffic to be redirected to 10.0.0.5 on the same port. That is why i`ve decided maybe SOCKS proxy via SSH and iptables REDIRECT could help me. Client - serverBPublicIP (any port from range 3000:4000) - serverAPublicIP - serverAPrivateIP (the port was requested on serverBPublicIP) On serverB i do: ssh -D20.0.0.11:2222 [email protected].10 iptables -t nat -A PREROUTING -d 20.0.0.11 -p tcp --dport 3000:4000 -j REDIRECT --to-port 2222 But that does not work - when i telnet on 20.0.0.11:3001 for example i do not see any proxied traffic on the serverA. What should i do else? I have tried tcpsocks like this (in example i am telneting to 20.0.0.11:3001) Client -> 20.0.0.11:3001 -> iptables REDIRECT from 3001 --to-port 1111 -> tcpsocks from 1111 to 2222 -> SOCKS proxy from serverB to serverA on port 2222 -> serverA But i do not know what to do with the traffic on serverA. How to route it to its private IP. Help me please. I know, VPN removes all the hell i am trying to create, but i have no ability to use tun/tap device. It is disabled.

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  • Loosely coupled .NET Cache Provider using Dependency Injection

    - by Rhames
    I have recently been reading the excellent book “Dependency Injection in .NET”, written by Mark Seemann. I do not generally buy software development related books, as I never seem to have the time to read them, but I have found the time to read Mark’s book, and it was time well spent I think. Reading the ideas around Dependency Injection made me realise that the Cache Provider code I wrote about earlier (see http://geekswithblogs.net/Rhames/archive/2011/01/10/using-the-asp.net-cache-to-cache-data-in-a-model.aspx) could be refactored to use Dependency Injection, which should produce cleaner code. The goals are to: Separate the cache provider implementation (using the ASP.NET data cache) from the consumers (loose coupling). This will also mean that the dependency on System.Web for the cache provider does not ripple down into the layers where it is being consumed (such as the domain layer). Provide a decorator pattern to allow a consumer of the cache provider to be implemented separately from the base consumer (i.e. if we have a base repository, we can decorate this with a caching version). Although I used the term repository, in reality the cache consumer could be just about anything. Use constructor injection to provide the Dependency Injection, with a suitable DI container (I use Castle Windsor). The sample code for this post is available on github, https://github.com/RobinHames/CacheProvider.git ICacheProvider In the sample code, the key interface is ICacheProvider, which is in the domain layer. 1: using System; 2: using System.Collections.Generic; 3:   4: namespace CacheDiSample.Domain 5: { 6: public interface ICacheProvider<T> 7: { 8: T Fetch(string key, Func<T> retrieveData, DateTime? absoluteExpiry, TimeSpan? relativeExpiry); 9: IEnumerable<T> Fetch(string key, Func<IEnumerable<T>> retrieveData, DateTime? absoluteExpiry, TimeSpan? relativeExpiry); 10: } 11: }   This interface contains two methods to retrieve data from the cache, either as a single instance or as an IEnumerable. the second paramerter is of type Func<T>. This is the method used to retrieve data if nothing is found in the cache. The ASP.NET implementation of the ICacheProvider interface needs to live in a project that has a reference to system.web, typically this will be the root UI project, or it could be a separate project. The key thing is that the domain or data access layers do not need system.web references adding to them. In my sample MVC application, the CacheProvider is implemented in the UI project, in a folder called “CacheProviders”: 1: using System; 2: using System.Collections.Generic; 3: using System.Linq; 4: using System.Web; 5: using System.Web.Caching; 6: using CacheDiSample.Domain; 7:   8: namespace CacheDiSample.CacheProvider 9: { 10: public class CacheProvider<T> : ICacheProvider<T> 11: { 12: public T Fetch(string key, Func<T> retrieveData, DateTime? absoluteExpiry, TimeSpan? relativeExpiry) 13: { 14: return FetchAndCache<T>(key, retrieveData, absoluteExpiry, relativeExpiry); 15: } 16:   17: public IEnumerable<T> Fetch(string key, Func<IEnumerable<T>> retrieveData, DateTime? absoluteExpiry, TimeSpan? relativeExpiry) 18: { 19: return FetchAndCache<IEnumerable<T>>(key, retrieveData, absoluteExpiry, relativeExpiry); 20: } 21:   22: #region Helper Methods 23:   24: private U FetchAndCache<U>(string key, Func<U> retrieveData, DateTime? absoluteExpiry, TimeSpan? relativeExpiry) 25: { 26: U value; 27: if (!TryGetValue<U>(key, out value)) 28: { 29: value = retrieveData(); 30: if (!absoluteExpiry.HasValue) 31: absoluteExpiry = Cache.NoAbsoluteExpiration; 32:   33: if (!relativeExpiry.HasValue) 34: relativeExpiry = Cache.NoSlidingExpiration; 35:   36: HttpContext.Current.Cache.Insert(key, value, null, absoluteExpiry.Value, relativeExpiry.Value); 37: } 38: return value; 39: } 40:   41: private bool TryGetValue<U>(string key, out U value) 42: { 43: object cachedValue = HttpContext.Current.Cache.Get(key); 44: if (cachedValue == null) 45: { 46: value = default(U); 47: return false; 48: } 49: else 50: { 51: try 52: { 53: value = (U)cachedValue; 54: return true; 55: } 56: catch 57: { 58: value = default(U); 59: return false; 60: } 61: } 62: } 63:   64: #endregion 65:   66: } 67: }   The FetchAndCache helper method checks if the specified cache key exists, if it does not, the Func<U> retrieveData method is called, and the results are added to the cache. Using Castle Windsor to register the cache provider In the MVC UI project (my application root), Castle Windsor is used to register the CacheProvider implementation, using a Windsor Installer: 1: using Castle.MicroKernel.Registration; 2: using Castle.MicroKernel.SubSystems.Configuration; 3: using Castle.Windsor; 4:   5: using CacheDiSample.Domain; 6: using CacheDiSample.CacheProvider; 7:   8: namespace CacheDiSample.WindsorInstallers 9: { 10: public class CacheInstaller : IWindsorInstaller 11: { 12: public void Install(IWindsorContainer container, IConfigurationStore store) 13: { 14: container.Register( 15: Component.For(typeof(ICacheProvider<>)) 16: .ImplementedBy(typeof(CacheProvider<>)) 17: .LifestyleTransient()); 18: } 19: } 20: }   Note that the cache provider is registered as a open generic type. Consuming a Repository I have an existing couple of repository interfaces defined in my domain layer: IRepository.cs 1: using System; 2: using System.Collections.Generic; 3:   4: using CacheDiSample.Domain.Model; 5:   6: namespace CacheDiSample.Domain.Repositories 7: { 8: public interface IRepository<T> 9: where T : EntityBase 10: { 11: T GetById(int id); 12: IList<T> GetAll(); 13: } 14: }   IBlogRepository.cs 1: using System; 2: using CacheDiSample.Domain.Model; 3:   4: namespace CacheDiSample.Domain.Repositories 5: { 6: public interface IBlogRepository : IRepository<Blog> 7: { 8: Blog GetByName(string name); 9: } 10: }   These two repositories are implemented in the DataAccess layer, using Entity Framework to retrieve data (this is not important though). One important point is that in the BaseRepository implementation of IRepository, the methods are virtual. This will allow the decorator to override them. The BlogRepository is registered in a RepositoriesInstaller, again in the MVC UI project. 1: using Castle.MicroKernel.Registration; 2: using Castle.MicroKernel.SubSystems.Configuration; 3: using Castle.Windsor; 4:   5: using CacheDiSample.Domain.CacheDecorators; 6: using CacheDiSample.Domain.Repositories; 7: using CacheDiSample.DataAccess; 8:   9: namespace CacheDiSample.WindsorInstallers 10: { 11: public class RepositoriesInstaller : IWindsorInstaller 12: { 13: public void Install(IWindsorContainer container, IConfigurationStore store) 14: { 15: container.Register(Component.For<IBlogRepository>() 16: .ImplementedBy<BlogRepository>() 17: .LifestyleTransient() 18: .DependsOn(new 19: { 20: nameOrConnectionString = "BloggingContext" 21: })); 22: } 23: } 24: }   Now I can inject a dependency on the IBlogRepository into a consumer, such as a controller in my sample code: 1: using System; 2: using System.Collections.Generic; 3: using System.Linq; 4: using System.Web; 5: using System.Web.Mvc; 6:   7: using CacheDiSample.Domain.Repositories; 8: using CacheDiSample.Domain.Model; 9:   10: namespace CacheDiSample.Controllers 11: { 12: public class HomeController : Controller 13: { 14: private readonly IBlogRepository blogRepository; 15:   16: public HomeController(IBlogRepository blogRepository) 17: { 18: if (blogRepository == null) 19: throw new ArgumentNullException("blogRepository"); 20:   21: this.blogRepository = blogRepository; 22: } 23:   24: public ActionResult Index() 25: { 26: ViewBag.Message = "Welcome to ASP.NET MVC!"; 27:   28: var blogs = blogRepository.GetAll(); 29:   30: return View(new Models.HomeModel { Blogs = blogs }); 31: } 32:   33: public ActionResult About() 34: { 35: return View(); 36: } 37: } 38: }   Consuming the Cache Provider via a Decorator I used a Decorator pattern to consume the cache provider, this means my repositories follow the open/closed principle, as they do not require any modifications to implement the caching. It also means that my controllers do not have any knowledge of the caching taking place, as the DI container will simply inject the decorator instead of the root implementation of the repository. The first step is to implement a BlogRepository decorator, with the caching logic in it. Note that this can reside in the domain layer, as it does not require any knowledge of the data access methods. BlogRepositoryWithCaching.cs 1: using System; 2: using System.Collections.Generic; 3: using System.Linq; 4: using System.Text; 5:   6: using CacheDiSample.Domain.Model; 7: using CacheDiSample.Domain; 8: using CacheDiSample.Domain.Repositories; 9:   10: namespace CacheDiSample.Domain.CacheDecorators 11: { 12: public class BlogRepositoryWithCaching : IBlogRepository 13: { 14: // The generic cache provider, injected by DI 15: private ICacheProvider<Blog> cacheProvider; 16: // The decorated blog repository, injected by DI 17: private IBlogRepository parentBlogRepository; 18:   19: public BlogRepositoryWithCaching(IBlogRepository parentBlogRepository, ICacheProvider<Blog> cacheProvider) 20: { 21: if (parentBlogRepository == null) 22: throw new ArgumentNullException("parentBlogRepository"); 23:   24: this.parentBlogRepository = parentBlogRepository; 25:   26: if (cacheProvider == null) 27: throw new ArgumentNullException("cacheProvider"); 28:   29: this.cacheProvider = cacheProvider; 30: } 31:   32: public Blog GetByName(string name) 33: { 34: string key = string.Format("CacheDiSample.DataAccess.GetByName.{0}", name); 35: // hard code 5 minute expiry! 36: TimeSpan relativeCacheExpiry = new TimeSpan(0, 5, 0); 37: return cacheProvider.Fetch(key, () => 38: { 39: return parentBlogRepository.GetByName(name); 40: }, 41: null, relativeCacheExpiry); 42: } 43:   44: public Blog GetById(int id) 45: { 46: string key = string.Format("CacheDiSample.DataAccess.GetById.{0}", id); 47:   48: // hard code 5 minute expiry! 49: TimeSpan relativeCacheExpiry = new TimeSpan(0, 5, 0); 50: return cacheProvider.Fetch(key, () => 51: { 52: return parentBlogRepository.GetById(id); 53: }, 54: null, relativeCacheExpiry); 55: } 56:   57: public IList<Blog> GetAll() 58: { 59: string key = string.Format("CacheDiSample.DataAccess.GetAll"); 60:   61: // hard code 5 minute expiry! 62: TimeSpan relativeCacheExpiry = new TimeSpan(0, 5, 0); 63: return cacheProvider.Fetch(key, () => 64: { 65: return parentBlogRepository.GetAll(); 66: }, 67: null, relativeCacheExpiry) 68: .ToList(); 69: } 70: } 71: }   The key things in this caching repository are: I inject into the repository the ICacheProvider<Blog> implementation, via the constructor. This will make the cache provider functionality available to the repository. I inject the parent IBlogRepository implementation (which has the actual data access code), via the constructor. This will allow the methods implemented in the parent to be called if nothing is found in the cache. I override each of the methods implemented in the repository, including those implemented in the generic BaseRepository. Each override of these methods follows the same pattern. It makes a call to the CacheProvider.Fetch method, and passes in the parentBlogRepository implementation of the method as the retrieval method, to be used if nothing is present in the cache. Configuring the Caching Repository in the DI Container The final piece of the jigsaw is to tell Castle Windsor to use the BlogRepositoryWithCaching implementation of IBlogRepository, but to inject the actual Data Access implementation into this decorator. This is easily achieved by modifying the RepositoriesInstaller to use Windsor’s implicit decorator wiring: 1: using Castle.MicroKernel.Registration; 2: using Castle.MicroKernel.SubSystems.Configuration; 3: using Castle.Windsor; 4:   5: using CacheDiSample.Domain.CacheDecorators; 6: using CacheDiSample.Domain.Repositories; 7: using CacheDiSample.DataAccess; 8:   9: namespace CacheDiSample.WindsorInstallers 10: { 11: public class RepositoriesInstaller : IWindsorInstaller 12: { 13: public void Install(IWindsorContainer container, IConfigurationStore store) 14: { 15:   16: // Use Castle Windsor implicit wiring for the block repository decorator 17: // Register the outermost decorator first 18: container.Register(Component.For<IBlogRepository>() 19: .ImplementedBy<BlogRepositoryWithCaching>() 20: .LifestyleTransient()); 21: // Next register the IBlogRepository inmplementation to inject into the outer decorator 22: container.Register(Component.For<IBlogRepository>() 23: .ImplementedBy<BlogRepository>() 24: .LifestyleTransient() 25: .DependsOn(new 26: { 27: nameOrConnectionString = "BloggingContext" 28: })); 29: } 30: } 31: }   This is all that is needed. Now if the consumer of the repository makes a call to the repositories method, it will be routed via the caching mechanism. You can test this by stepping through the code, and seeing that the DataAccess.BlogRepository code is only called if there is no data in the cache, or this has expired. The next step is to add the SQL Cache Dependency support into this pattern, this will be a future post.

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  • Apache 2.4 Prefork vs. PHP-FPM Event shows sig decrease in requests per second

    - by Mark
    On my Apache 2.4.2 server with a standard mod_php Prefork setup these are my server-status results Current Time: Wednesday, 24-Oct-2012 19:36:24 CDT Restart Time: Wednesday, 24-Oct-2012 01:27:30 CDT Parent Server Config. Generation: 1 Parent Server MPM Generation: 0 Server uptime: 18 hours 8 minutes 54 seconds Total accesses: 14304233 - Total Traffic: 342.3 GB CPU Usage: u12584.6 s721.93 cu.66 cs3.43 - 20.4% CPU load 219 requests/sec - 5.4 MB/second - 25.1 kB/request 507 requests currently being processed, 355 idle workers ______KKKKR_K______W_KKC___CKK_K_K_W__CC_KKK_KK._K_K_KK._KKKK_K_ K_____KK_KKKK_K_KK__K___KK_K___K_____CKKK_WK_K_____KCKK__K___K_K K_CK_K_K_____K__KKKK_K__K___K_KK_K_K_KKKCK____________KK_CK__KKK __C_KKKKKKK___CK___C_KKK_K__C__K_CK____KKK__K__K__K_K__KK_CK_K__ _KKKKK_K_W__KK______K___K__W___C_K__K____KKKKKKKK.KKKKKKKCK_K___ _C_KK_K_WK__K_KK__K__RK_KK___K____K_KK_K_K___RKC_KKKK___KKKC_K_W _C_KK_KK__W____KC__KKK__KKK___K___KKK_KK_K_KKW__K_KR_KK_KK__KKK_ R__KKK__KKKKKK__K_KKKKK_K__K_K___KKW_________KK_K___KKK___KK.K_C KKKKKKW_____K__K_KKC_KCKK_K_KK_K__KK__K___K__KK_KK__________KK__ __K___KK_K__K_C_KK_K___KK__KK__K__KCK_K__KK_________K_K_KK__.K__ K_CKK.CCRW__KKKKKKKKKKKC__W____K___KWK_KK_KKC______.K_K_KK_KKKC_ __KKK_W_KCKKK_K_K____CCCK__KC_KKKK_K____K_CK_K____K__K____KKK_KK KK___K_K_K__KW__KCKKKK____WKWK__K_KKRKK__C_K_KK_KK_K__KKCC_K__C_ KK_K___K_KK______K_____CKK_K_______KK_CKCK__KKKKK____K__K..K____ __KKWK_KW__KKK__K_KKK___K_KK_KKK__KK___KK___KK_KK___KK____KKWKKC KK_KKKK_................................` When I switch to a PHP-FPM setup with the Event MPM with no other variables changes, my requests/sec plummet and overall apache response is garbage. Current Time: Wednesday, 24-Oct-2012 19:51:21 CDT Restart Time: Wednesday, 24-Oct-2012 19:48:03 CDT Parent Server Config. Generation: 1 Parent Server MPM Generation: 0 Server uptime: 3 minutes 18 seconds Total accesses: 18720 - Total Traffic: 307.1 MB CPU Usage: u16.57 s4.74 cu0 cs0 - 10.8% CPU load 94.5 requests/sec - 1.6 MB/second - 16.8 kB/request 15 requests currently being processed, 49 idle workers PID Connections Threads Async connections total accepting busy idle writing keep-alive closing 11701 114 no 10 22 0 66 38 11702 134 no 5 27 0 81 48 Sum 248 15 49 0 147 86 __R_R__W___RRW________RR__R___W_W_______W_____W_____________R_R_ Is there any obvious reason anyone could think of why this would be the case. I can provide any other additional stats or server setup info to help out. Ive tried tweaking everything up and down and nothing really helps get the PHP-FPM setup anywhere near a baseic prefork/mod-php setup. Thanks!

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  • LinkBuilder.BuildUrlFromExpression not working anymore in .Net 4 / VS 2010 ?

    - by Mose
    Hi, I recently migrating my ASP.Net MVC 1 application from VS.Net 2008 / C# 3.5 to VS.NET 2010 / C# 4.0. I massively used a builder to get URL strings from the strongly typed calls. It looks like this : // sample call : string toSamplePage = Url.To<SampleController>(c => c.Page(parameter1, parameter2)); the code is added as an extension to the default UrlHelper : public static string To<Tcontroller>(UrlHelper helper, Expression<Action<Tcontroller>> action) where Tcontroller : Controller { // based on Microsoft.Web.Mvc.dll LinkBuilder return LinkBuilder.BuildUrlFromExpression<Tcontroller>(helper.RequestContext, helper.RouteCollection, action); } The only problem of this, is the reference to Microsoft.Web.Mvc dll, but the gain in readability was worth it. Problem : it does not work anymore, return (null) whatever the parameters. Questions : is there a better way now to build links from an expression ? (yes I tried to google it without success) is there a trick to have the former LinkBuilder.BuildUrlFromExpression works ? I tried to recompile it into C# 4.0, but the problem is that it implies working on my own compilated version of System.Web.Mvc which is not an option. I'm currently trying to migrate to MVC 2 but I still have issues... Waiting for your suggestions...

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  • What's slowing for loops/assignment vs. C?

    - by Lee
    I have a collection of PHP scripts that are extremely CPU intensive, juggling millions of calculations across hundreds of simultaneous users. I'm trying to find a way to speed up the internals of PHP variable assignment, and looping sequences vs C. Although PHP is obviously loosely typed, is there any way/extension to specifically assign type (assign, not cast, which seems even more expensive) in a C-style fashion? Here's what I mean. This is some dummy code in C: #include <stdio.h> int main() { unsigned long add=0; for(unsigned long x=0;x<100000000;x++) { add = x*59328409238; } printf("x is %ld\n",add); } Pretty self-explanatory -- it loops 100 million times, multiples each iteration by an arbitrary number of some 59 billion, assigns it to a variable and prints it out. On my Macbook, compiling it and running it produced: lees-macbook-pro:Desktop lee$ time ./test2 x is 5932840864471590762 real 0m0.266s user 0m0.253s sys 0m0.002s Pretty darn fast! A similar script in PHP 5.3 CLI... <?php for($i=0;$i<100000000;$i++){ $a=$i*59328409238; } echo $a."\n"; ?> ... produced: lees-macbook-pro:Desktop lee$ time /Applications/XAMPP/xamppfiles/bin/php test3.php 5.93284086447E+18 real 0m22.837s user 0m22.110s sys 0m0.078s Over 22 seconds vs 0.2! I realize PHP is doing a heck of a lot more behind the scenes than this simple C program - but is there any way to make the PHP internals to behave more 'natively' on primitive types and loops?

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  • How does VS 2005 provide history across all TFS Team Projects when tf.exe cannot?

    - by AakashM
    In Visual Studio 2005, in the TFS Source Control Explorer, these is a top-level node for the TFS Server itself, with a child node for each Team Project. Right-clicking either the server node or the node for a Team Project gives a context menu on which there is a View History item. Selecting this gives you a History window showing the last 200 or so changesets, either for the specific Team Project chosen, or across all Team Projects. It is this history across all Team Projects that I am wondering about. The command-line tf.exe history command provides (as I understand it) basically the same functionality as is provided by the VS TFS Source Control plug-in. But I cannot work out how to get tf.exe history to provide this across-all-Team-Projects history. At a command line, supposing I have C:\ mapped as the root of my workspace, and Foo, Bar, and Baz as Team Projects, I can do C:\> tf history Foo /recursive /stopafter:200 to get the last 200 changesets that affected Team Project Foo; or from within a Team Project folder C:\Bar> tf history *.* /recursive /stopafter:200 which does the same thing for Team Project Bar - note that the wildcard *.* is allowed here. However, none of these work (each gives the error message shown): C:\> tf history /recursive /stopafter:200 The history command takes exactly one item C:\> tf history *.* /recursive /stopafter:200 Unable to determine the source control server C:\> tf history *.* /server:servername /recursive /stopafter:200 Unable to determine the workspace I don't see an option in the docs for tf for specifying a workspace; it seems to only want to determine it from the current folder. So what is VS 2005 doing? Is it internally doing a history on each Team Project in turn and then sticking the results together?? note also that I have tried with Power Tools; tfpt history from the command line gives exactly the same error messages seen here

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  • SharePoint extensions for VS - which version have I got?

    - by Javaman59
    I'm using Visual Studio 2008, and have downloaded VSeWSS.exe 1.2, to enable Web Part development. I am new to SP development, and am already bewildered by the number of different versions of SP, and the VS add-ons. This particular problem has come up, which highlights my confusion. I selected Add - New Project - Visual C# - SharePoint- Web Part, accepted the defaults, and VS created a project, with the main file WebPart1.cs using System; using System.Runtime.InteropServices; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Serialization; using Microsoft.SharePoint; using Microsoft.SharePoint.WebControls; using Microsoft.SharePoint.WebPartPages; namespace WebPart1 { [Guid("9bd7e74c-280b-44d4-baa1-9271679657a0")] public class WebPart1 : System.Web.UI.WebControls.WebParts.WebPart { public WebPart1() { } protected override void CreateChildControls() // <-- This line { base.CreateChildControls(); // TODO: add custom rendering code here. // Label label = new Label(); // label.Text = "Hello World"; // this.Controls.Add(label); } } } The book I'm following, Essential SharePoint 2007, by Jeff Webb, has the following for the default project - using System; <...as previously> namespace WebPart1 { [Guid("9bd7e74c-280b-44d4-baa1-9271679657a0")] public class WebPart1 : System.Web.UI.WebControls.WebParts.WebPart { // ^ this is a new style (ASP.NET) web part! [author's comment] protected override void Render(HtmlTextWriter writer) // <-- This line { // This method draws the web part // TODO: add custom rendering code here. // Label label = new Label(); // writer.Write("Output HTML"); } } } The real reason for my concern is that in this chapter of the book the author frequently mentions the distinction between "old style" web parts, and "new style" web parts, as noted in his comment on the Render method. What's happened? Why has my default Web Part got a different signature to the authors?

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  • Properties vs. Fields: Need help grasping the uses of Properties over Fields.

    - by pghtech
    First off, I have read through a list of postings on this topic and I don't feel I have grasped properties because of what I had come to understand about encapsulation and field modifiers (private, public..ect). One of the main aspects of C# that I have come to learn is the importance of data protection within your code by the use of encapsulation. I 'thought' I understood that to be because of the ability of the use of the modifiers (private, public, internal, protected). However, after learning about properties I am sort of torn in understanding not only properties uses, but the overall importance/ability of data protection (what I understood as encapsulation) within C#. To be more specific, everything I have read when I got to properties in C# is that you should try to use them in place of fields when you can because of: 1) they allow you to change the data type when you can't when directly accessing the field directly. 2) they add a level of protection to data access However, from what I 'thought' I had come to know about the use of field modifiers did #2, it seemed to me that properties just generated additional code unless you had some reason to change the type (#1) - because you are (more or less) creating hidden methods to access fields as opposed to directly. Then there is the whole modifiers being able to be added to Properties which further complicates my understanding for the need of properties to access data. I have read a number of chapters from different writers on "properties" and none have really explained a good understanding of properties vs. fields vs. encapsulation (and good programming methods). Can someone explain: 1) why I would want to use properties instead of fields (especially when it appears I am just adding additional code 2) any tips on recognizing the use of properties and not seeing them as simply methods (with the exception of the get;set being apparent) when tracing other peoples code? 3) Any general rules of thumb when it comes to good programming methods in relation to when to use what? Thanks and sorry for the long post - I didn't want to just ask a question that has been asked 100x without explaining why I am asking it again.

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  • C++ Deck and Card Class Error with bad alloc

    - by user3702164
    Just started learn to code in school. Our assignment requires us to create a card game with card,deck and hand class. I am having troubles with it now and i keep getting exception: std::bad_alloc at memory location. Here are my codes right now CardType h: #ifndef cardType_h #define cardType_h #include <string> using namespace std; class cardType{ public: void print(); int getValue() const; string getSymbol() const; string getSpecial() const; string getSuit() const; int checkSpecial(int gscore) const; cardType(); cardType(string suit,int value); private: int value; string special; string symbol; string suit; }; #endif CardType cpp: #include "cardType.h" #include <iostream> #include <string> using namespace std; void cardType::print() { cout << getSymbol() << " of " << getSuit() << ", having the value of " << getValue() << "."<< endl <<"This card's special is " << getSpecial() << endl; } int cardType::getValue() const { return value; } string cardType::getSymbol() const { return symbol; } string cardType::getSpecial() const { return special; } string cardType::getSuit() const { return suit; } cardType::cardType(){ value=0; symbol="?"; special='?'; suit='?'; } cardType::cardType(string s, int v){ suit = s; value = v; switch(v){ case 1: // Ace cards have a value of 1 and have no special type symbol="Ace"; special="None"; break; case 2: // 2 cards have a value of 2 and have no special type symbol="2"; special="None"; break; case 3: symbol="3"; // 3 cards have a value of 3 and have no special type special="None"; break; case 4: symbol="4"; // 4 cards have a value of 0 and have a special type "Reverse" which reverses the flow of the game special="Reverse"; value=0; break; case 5: symbol="5"; // 5 cards have a value of 5 and have no special type special="None"; break; case 6: symbol="6"; // 6 cards have a value of 6 and have no special type special="None"; break; case 7: symbol="7"; // 7 cards have a value of 7 and have no special type special="None"; break; case 8: symbol="8"; // 8 cards have a value of 8 and have no special type special="None"; break; case 9: symbol="9"; // 9 cards have a value of 0 and have a special type "Pass" which does not add any value to the game and lets the player skip his turn. special="Pass"; value=0; break; case 10: symbol="10"; // 10 cards have a value of 10 and have a special type "subtract" which instead of adding the 10 value to the total game it is subtracted instead. special="Subtract"; value=10; break; case 11: // Jack cards have a value of 10 and have no special type symbol="Jack"; special="None"; value=10; break; case 12: // Queens cards have a value of 10 and have no special type symbol="Queen"; special="None"; value=10; break; case 13: symbol="King"; // King cards have a value of 0 and have a special type "NinetyNine" which changes the total game score to 99 reguardless what number it was previously special="NinetyNine"; value=0; break; } } int cardType::checkSpecial(int gscore) const{ if(special=="Pass"){ return gscore; } if(special=="Reverse"){ return gscore; } if(special=="Subtract"){ return gscore - value; } if(special=="NinetyNine"){ return 99; } else{ return gscore + value; } } DeckType h: #ifndef deckType_h #define deckType_h #include "cardType.h" #include <string> using namespace std; class deckType { public: void shuffle(); cardType dealCard(); deckType(); private: cardType *deck; int current; }; #endif DeckType cpp: #include <iostream> #include "deckType.h" using namespace std; deckType::deckType() { int index = 0; int current=0; deck = new cardType[52]; string suit[] = {"Hearts","Diamonds","Clubs","Spades"}; int value[] = {1,2,3,4,5,6,7,8,9,10,11,12,13}; for ( int i = 0; i <= 3; i++ ) { for ( int j = 1; j <= 13; j++ ) { deck[index] = cardType(suit[i],value[j]); index++; } } } cardType deckType::dealCard() { return deck[current]; current++; } Main cpp : #include "deckType.h" #include <iostream> using namespace std; int main() { deckType gamedeck; cout << "1" <<endl; cardType currentCard; cout << "2" <<endl; currentCard = gamedeck.dealCard(); cout << "3" <<endl; return 0; } I keep getting bad_alloc at the currentCard = gamedeck.dealCard(); I really do not know what i have done wrong.

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