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  • SQL*Plus??? - SPOOL??????????? (????? ???Tips-4)

    - by Yuichi.Hayashi
    SPOOL????????????????????? SQL*Plus?????10.1??? ????????????????????????????? ??:spool ??????? { cre[ate] | rep[lace] | app[end] } ??????replace??????????????????????????? ? ???????????????????????? ????10.1???????? ???create?append???????????????? create????? create??????????????????? ???????????? SQL spool aaa.txt cre SP2-0771: ????"aaa.txt"?????????? ???????"SPOOL filename[.ext] REPLACE"???????????spool??????????? append????? append???????????????????? ????????????????????????? ??v$??????????????????????????????????????????????????? ?)spool???????????????????????????????????????? (Written by Hiroyuki Nakaie)

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  • Oracle Applications???????????????

    - by junko.ishikawa
    ????????????????????????????Oracle E-Business Suite???JD Edwards EnterpriseOne???PeopleSoft Enterprise???Siebel CRM?????????????????????????????????????????????????? ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ??????????????Oracle Fusion Middleware???????????????????????????????????????????18????????????????????????????????????

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  • Fusion Middleware 11gR1 : 2012?7??????

    - by Hiro
    2012?7? (2012/07/18 ??)?Fusion Middleware 11gR1 ?????????????? ? ????????????3??????? 1. Oracle JRE/JDKWindows (32-bit), Windows x64????????????????(2012/06/19)???????Oracle JRE/JDK 7 Update 4 ??????????????? 2. Oracle Forms and ReportsOracle Forms and Reports 11g Release 2 ???????????????Solaris x86-64 ????????? 3. Oracle B2BSOA Suite????????Oracle B2B??????Oracle B2B Document Editor???? 11.1.1.6.0 ??????????? ????????????Windows (32-bit), Windows x64 ?????? ? ??????????????

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  • SQL*Plus??? - SQL??????????????????(????? ???Tips-3)

    - by Yuichi.Hayashi
    ??SQL??????????????? $ sqlplus @batch1.sql ?????SQL????????????????????????????????????? ????????????????????????????SQL?????????????????????????? SQL*Plus?????????????????????????????????????????????????SQL????????????????? ???????????????????????? #!/bin/sh sqlplus -s /nolog    conn scott/tiger"    select sysdate from dual;    exit EOF ??????????????????SQL???????????? ?EOF?????????EndOfSQL??????????????????????????????????????????????????? ????????????????????????????????? ????????????????????????SQL???????????????????????????SQL????????????????????????????????????????? ??????SELECT???????????????????????? #!/bin/sh table_name=dual sqlplus -s /nolog    conn scott/tiger    select sysdate from $table_name;    exit EndOfSQL (Written by Hiroyuki Nakaie)

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  • 4?????????????

    - by ???02
    4?????????????Oracle Database ???????????????????????????????????????????????????????????????Oracle Database Security???????????????????????????????????????????????????4???????????? ?????????4????????????Oracle Advanced Security??Oracle Database?????????????????????????????????????????????????????????????????????????????Oracle Database Vault????????????DBA????????????????????DBA???????????????????????????????????????????????????????????????????????????·??Oracle Audit Vault??Oracle Database?SQL Server??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????Oracle Data Masking??????????????????????????????????????????????????????????????????????????? ??????·??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ?????? Oracle Direct

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  • Oracle????????(2013?1?)

    - by Steve He(???)
    ???? ?? ?? ?? ?? ???? ?? GC???OutOfMemory????? Oracle Fusion MiddleWare ?? 1?23? 14:00 ?? 11GR2 ????????? Database ?? 1?15? 15:00 ?? EXACHK - EXADATA?????? (Exachk???????) Exadata ?? 1?17? 15:00 ?? ?????? My Oracle Support ??????????????????????,??? world clock. Normal 0 7.8 ? 0 2 false false false EN-US ZH-CN X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:????; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.5pt; mso-bidi-font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi; mso-font-kerning:1.0pt;} GC???OutOfMemory???? ??????JDK???????;?????????????????,??????????????,??????????????????????????????????????? 11GR2 ????????? ????????????????????????11gR2??????????,??????????????????????,?????????????????????? ????????????????????,???????????????,?????????????????,?????????????,??????????????,???????????????????????????? ??,???????????????,??????,???????(??? Oracle Support Lifecycle Advisors????),?????????????????????????? EXACHK - EXADATA?????? (Exachk???????)  ?? Exachk ????????;???? Exachk ?? Exadata ???????, ??? Oracle ???????????????????, ?????????, ????, ?? Exadata ????????

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  • ?????????????Fusion Middleware??????????? ?5?

    - by rika.tokumichi
    ??????????OTN????????? ??OTN???????Fusion Middleware????????????????????????????????????????????????? ?OTN????????????????????????????? 2010?4??5????????????????????????????? ????????????????????????????????? ????????????????????????? ?????????????????! ????????????????????? ??????????????????????????????????????????????????Fusion Middleware???????????????????????????????????????????? ???··· ??????????????????!! ???????????Oracle VM Forum????????????????????????????????????????? ?????????????????????????????^^ ????????(Oracle VM Forum??) ???????????????????? ~????????·????????????????~ ???????????????????????????(????)?????????2?????????????????WebLogic Server?Coherence??????????·?????????????????????????·??????????????????????????????????????????????????????OS????????????????????????????????????????????? >??pdf????(??????????????) ?????????????(??????)?????????????????????????? ??????????????????????????????? ??????????????? >Oracle VM Forum????????!?????????????? "??????·????" ?????? ???? ??????????????????????????????????????? ??????????????/??????????????????????????????? ???????2010?8?3?(?)????? ???????????????????????????? >??????!?Oracle Cloud Computing Summit -Middleware Technology Day~?????????????????????????????????????·????~ ?????????????????????????????????? ???????????????????????? ?????????????????????Oracle Direct Seminar(??:????)????????????????????(OTN???? ????????)????????????????????? >OTN?????????????? ?????????????????Live????????????????? ???????????????????????????????????????????????????? ???OTN???? ?????????????????????????????????????????????????????! ?????????????IT?????????????????????????????????????????? ??????????????? ?IT????????????????????????????????????? ??????????????????????????????????????? 1???????????????????????? ??????????????? ?????????????OTN???????????blog?????????????????????????????????????! ???OTN???????????????????????????????Twitter?RSS????????????? OTN Japan Twitter????????? Oracle Technology Network Japan Blog ?????????????????????Fusion Middleware??????????? ?5??????????? ??????????????????????! Fusion Middleware???????????! ?INFORMATION INDEPTH NEWSLETTERS Fusion Middleware Edition???????! ??1?OTN???????Fusion Middleware???????????????? ???????????????????????????????????????????????? ???????????????????????!! ?????????? Oracle/OTN????????????????????????????????????????????????? ????????????????????????????????????? INFORMATION INDEPTH NEWSLETTERS Fusion Middleware Edition??????????????????????? >???????????????????????? ??????????????????????Oracle's Dev2DBA Newsletter?????????????^^ >?Oracle's Dev2DBA Newsletter?????????????????????????????????

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  • ??????Oracle Coherence????????????????????

    - by mamoru.kobayashi
    ????????????????????????????????????????arrowhead??????????????????2010?1?4?????????????????????????Oracle Coherence???????????????? ???????????????????·??????????????????????????????????? ???????????????????????????????????????????????arrowhead????????????????????????????????????????????????????????????????????????????????????????????????????????? ??????2009?10???Oracle Coherence????????????????????·??????????????????2010?1?4???arrowhead?????????????????????????????? ??????????????? ????????????? ??? ?????? ?????????????? ?????? ???

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  • ?????????2010????????

    - by takashi.hitomi
    ?? 10??11????????????????CTC????????????????2010??????? ???????????????????????????????????????????????? ???????????????6?1?????????????????????????????????????????????! ??6?9????????10???????????????????????2010?????????????!

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  • ?????

    - by user758881
    ????lumosity.com???????“?????”????????????????????????????????????????,???????????,??????????????????????????? ??,??????????????????——?????????????????IT????????????????????????????????????,????????????????,????????????? ?????????????——????????????????????????????????????????,??????,????????????????????? ?????,“??????????????:????????????”?,76%??????,???????????????????,????????????(54%)?????IT???????????IT?????????? ????,Oracle??????????????????????,Denovo????????IT?????????2009???????????Oracle JD Edwards??????????Denovo??????????????ERP??????Oracle?????????????????????? “????????????????????,”Denovo????????????????Paul Herbka???“?????????????????????????????????????????????????????????????????”   ??Denovo??????????????????,??????????????????ERP?????????????????????????????????????,?????????????? “????????????????,”Herbka???“?????????????????????IT???????????????????????????????????????????,????????????????????????????????” ??????????: “?????:?????????????????????,” ???Deloitte & Touche????????????????,Irfan Saif,?????Oracle Profit Online ?? Jim Lein ?????????????Oracle??????????1999???JD Edwards,???????Oracle15?????????Evergreen,Colorado,????????????????????????????????????????,????Oracle???

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  • ????????Oracle WebLogic Server ???????|WebLogic Channel|??????

    - by ???02
    WebLogic Server????????????????????????????WebLogic Server?????????????????WebLogic Server????????????????????????????????????Java??????????????????????????????????????????????????????????????¦Oracle WebLogic Server ?????????¦WebLogic Server???????¦?????????????????????¦?????????????¦???·??????¦WebLogic Server????¦WebLogic JDBC¦RAC?? ?????????????????????????????http://www.oracle.com/technetwork/jp/ondemand/application-grid/wls11g-architecture-201107-otn-sc-439536-ja.pdf

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  • ????????Oracle WebLogic Server - JDBC??????|WebLogic Channel|??????

    - by ???02
    WebLogic Server????????????????????????????JDBC???????????????? ?? JDBC????????????????????(????????????)??????????????????????????????????????? ??JDBC?????????????????????????????????????????????(????DB?????DB???ID????????)????????????????????????????????????????????????????????????????????????????????? ¦JDBC????????¦WebLogic Server?JDBC??????¦WebLogic Server?JDBC?????????¦WebLogic Server?JDBC?????????¦WebLogic Server????????????¦WebLogic Server?JDBC??????????Oracle JDBC Driver?????¦WebLogic Server?JDBC????????????/????¦Appendix:???????????JDBC??????????????????????????????????????http://www.oracle.com/technetwork/jp/ondemand/application-grid/wls11g-jdbcdatasource-201107-otn-sc-439531-ja.pdf

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  • ????????Oracle WebLogic Server - GridLink for RAC |WebLogic Channel|??????

    - by ???02
    WebLogic Server????????????????????????????GridLink for RAC???????????????????????????????????????????????????WebLogic Server?????????????????????????????????????????JDBC???????????????Oracle RAC???????????GridLink for RAC???????????????????JDBC??????????GridLink for RAC???????????????? ¦WebLogic JDBC?? ¦GridLink for RAC???????????????????????????http://www.oracle.com/technetwork/jp/ondemand/application-grid/wls11g-gridlink-201107-otn-sc-439528-ja.pdf

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  • ???????? ??·?????????????????????? Oracle WebLogic Server 11g|WebLogic Channel|??????

    - by ???02
    WebLogic Server????????????????????????????WebLogic Server?????????????? ??No1??????????????????????????WebLogic Server??Java??????????????????????????????????????????????·?????????????????????????? ??????WebLogic Server????????????????11g???????????????????? ????¦WebLogic Server???¦WebLogic Server 10gR3 ?????Update·?????????????WebLogic Server?????·??????????????WebLogic Server?????¦WebLogic Server 11gR1 ??????·?????????·Oracle????????¦??????????????????????????????http://www.oracle.com/technetwork/jp/ondemand/application-grid/wls11g-introduction-201107-otn-sc-439527-ja.pdf

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  • ???????/???Oracle????Java???????

    - by Yusuke.Yamamoto
    ????? ??:2011/03/01 ??:??????/?? ?????????????Java ?????????????????????????????????????????????? Java ??????????????????????????? Java ?????????????????????Java SE 7 ???????????????????? Java EE 6 ??? Java EE 7 ?????????? Java ???????????????????????Java SE 7 ?????????CoinJava EE 6 ???Java EE 7 ????:???? ????????? ????????????????? http://otndnld.oracle.co.jp/ondemand/otn-seminar/movie/id_000833.wmv http://www.oracle.com/technetwork/jp/content/id-000830-330948-ja.pdf

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  • Register for the webcast, " Modernizing Applications - The Top IT Project" Wednesday, November 30, 9:00 a.m. PT / 12:00 p.m. ET

    - by Oracle Accelerate for Midsize Companies
      Due to the realities of the 'New Normal' economy, many midsize companies are replacing or upgrading their legacy enterprise applications. Larry Simcox, Sr. Director of the Oracle Accelerate Program Office, will lead a discussion on the 'why' and the 'how' featuring an impressive list of panelists:  Eric Kimberling, President & Chairman, Panorama Consulting Lyle Ekdahl, GVP & General Manager, Oracle's JD Edwards Enterprise Applications Jeanne Lowell, VP, Oracle's E-Business Suite Strategy. Click HERE to register.

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  • ????”DDD”???!???????···OTN????????????

    - by OTN-J Master
    ???????????????????????Oracle DBA & Developer Day (??”DDD”)???????????:11?14?(?)13:30~18:00??:???????????(?????????????4????JR??????????????)???????????????????????????????????????????????????????????????????????????????????????????????????????????>> ???????????????????Oracle Database????????????????????????????????????????????????????(???????????????????????????????????????????????????) ~?????????????????~    ?A-1?????·???????! SQL?????????????????????    ?A-2?????·???????! SQL??????????    ?B-3?????·???????! ????????????????????    ?A-4??????! ????·??????????????????? ???OTN?????????????(!?)?????????????????????????(????????????????????????????????????!) ¦?Oracle Database 12c??????????? ?F-1~4?13:30~18:00 ????????????????Oracle Database 12c?????????????????????????????????????Oracle Database 12c????????????????????12c????????????????????Oracle MASTER for 12c?????????????????????????????????????????????!    ?F-1??????????????????????!Oracle Database 12c?ILM???    ?F-2?Oracle Database 12c?????????????    ?F-3?Oracle Database 12c??????????    ?F-4????????·??????? ???????? ¦ ?Oracle Database - ??????????????? ?? ?C-2? 14:40-15:40???????·????????????????????????????????????????/???????Oracle Database?????Data Protection????????????????????????????????????????? ????OTN?????”?????????????!DBA???”??????????????????????????????????????????????????????!????···(??????????????!!)???????????????????~???????????????~??????????????????????????????????????????????????????????????????????????????“?????”?????(??? ???)??????????????????????????????11?14?(?)??????Oracle DBA & Developer Day 2013?????Oracle Database????????????????????????????????????????????????????????????????¦ ?Oracle Fusion Middleware ????????? ???? ?? ?D-2? 14:40-15:40Java Flight Recorder - “Project HotRockit”HotSpot JVM??????????? “Project HotRockit” ????????????????????????Java Flight Recorder??????????Java?????????????????(???????)????????????JVM??????????????????????????? Java Mission Control?????????? Java Flight Recorder?Java Mission Control??JDK 7 Update 40 (7u40)???????????????????????????????????????????Java??????????????????????Java SE Advanced(????)??????????????????Java SE?????(??:BCL)???????????????????????????????????????????????????????????????????????????????????????OTN????Java Mission Control??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????Oracle Java Mission Control ??? Java Flight Recorder: ?????????????????????Java???????(PDF)¦?Oracle Solaris?Oracle Hardware?????????????? ???E-3/E-4? ?? 15:50-16:50 ?? 17:00-18:00 ??????????: ?????Oracle Solaris 11!????????????Solaris???????????????????????100???????????????Solaris 11?Solaris Zones?DTrace?ZFS????????????Solaris 11?100?????????????????????????????????????? ?? ? DDD????????????????????????????????Solaris11 ??????????????????????(?????????????!)?????????????Solaris?????????????????????????????????Solaris??????????????????Solaris 11??????????????????????????????????!????:???????????????????????????????????????100??????????????????????????????????????????????????????????????!!>> ????????????

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  • ??????(??????????)

    - by ???02
    ??????(??????????)??????????????????????????????????????????????????????????????????????????????????·??????????????????????????????????????Web?????·???????????????????????????????????????????????????????????????????·???????????????????????????????????????????????????????????????????????????????? Oracle Adaptive Access Manager????·????????????????????? Oracle Identity Federation????????????????Oracle Entitlements Server ????????????·??????????????????????????? -????·?????-?????????????Oracle Adaptive Access Manager -- ??????????????????????????????Oracle Adaptive Access Manager???????????????????????????????????????????????????????·???????????????????????????????????????????????(????)?????????????????????????????ID???????????????????????????????????(1)???????????????????????????????????????????·?????(2)????????????????????????????????????????????????????????????(3)??????????????????Web??????????(????)?????????????(4)?????????????????????????????????Web?????????????????????????????????????Oracle Identity Federation -- ?????????????Oracle Identity Federation???????????????????????????????????·????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????IT??????????????????(1)????????:??????????????????????·???????????????????????????:SAML?ID-FF?WS-Federation?Windows CardSpace(2)??????????????????????????????????????·???????????????????Oracle Entitlements Server -- ????????????Oracle Entitlements Server????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????UI??????????????????????????????????????????????????????(1)OASIS XACML????????????????????(2)??????????????????????????????????????????????????(3)???????????????????????????????????????(4)????????????????????????????????????????Oracle OpenSSO Security Token Service -- ?????????????????Oracle OpenSSO Security Token Service(OpenSSO STS)????????????????Web ???????????????????????????(????????????)????????????????OASIS WS-Trust ????????????????????(issurance)???(renewal)???(validation)??????????????(1)WS-Trust????????????????????(issuance)???(renewal)???(validation)???(2)Web???????ID???????????????????(3)?????????????????? ?????? Oracle Direct

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  • ????????

    - by ???02
    ???????????????????????????????????????????????????????????·?????????????????????????????·???????????????????????????????????????????????Oracle Directory Server Enterprise Edition?Oracle Internet Directory?Oracle Virtual Directory???3?????????·???????????????Oracle Directory Server Enterprise Edition -- ??????????????·????Oracle Directory Server Enterprise Edition(ODSEE???Sun Directory Server Enterprise Edition)????????????????????????????????????????????·????????????????????????????????????·?????????????????????????????????????????????????????????????????????????????????????????????????(1)10???????40????????????(2)???????????????????(3)Web????????????????:???????????????????????????????????(4)?????????????????????????????(CoS : Class of Service)?????????(5)????????????????????(6)??????·?????????????????????Oracle Internet Directory -- ????????????LDAP????Oracle Internet Directory (??OID )??LDAPv3 ???????????????????Oracle Database??????????????????????????????????????????????(Database Vault)????????(Transparent Data Encryption)??????????????????????????????????????????????????????????·?????????????????????????????(1)LDAP v3???????????·????(2)??????????????????????????(3)LDAP?(?????????)????????(??????)??????????????????????????????(4)ID??????????????????????????????????(5)Active Directory???ID??????????????????????????????????Oracle Virtual Directory -- ???ID?????(LDAP?DB)???????Oracle Virtual Directory (?? OVD )??LDAPv3 ?????????????Virtual (??) ???????????????????????????OVD ???????????????????? LDAP ???????????????????????????????????????????1?? LDAP ????????????????????????????LDAP ??????????????????????????????ID???????????????????????????????????????????????????????????????(1)LDAP v3???????????·????(2)???ID????????????????????????(3)????????????????????????????????????????(4)??????(SQL Server, DB2, Oracle Database)???????(Active Directory, Novel eDirectory, OID)??????????ID??????LDAP????(5)????????1???????????????????ID???????????????????? ?????? Oracle Direct

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  • ?????????????Oracle Demantra??????????

    - by mamoru.kobayashi
    ???????????????????????????????????????Oracle Demantra 7.3(????·?????7.3)?????????????? ?Oracle Demantra 7.3?????·??????????????????????????????????????????????????? ???????????????????????????????????????????????????????????????????????????? ?????????????? ????????????????????? ????????? ??????? ???????????? ????(????) ????????????????

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  • Accessing Oracle 6i and 9i/10g Databases using C#

    - by Mike M
    Hi all, I am making two build files using NAnt. The first aims to automatically compile Oracle 6i forms and reports and the second aims to compile Oracle 9i/10g forms and reports. Within the NAnt task is a C# script which prompts the developer for database credentials (username, password, database) in order to compile the forms and reports. I want to then run these credentials against the relevant database to ensure the credentials entered are correct and, if they are not, prompt the user to re-enter their credentials. My script currently looks as follows: class GetInput { public static void ScriptMain(Project project) { Console.Clear(); Console.WriteLine("==================================================================="); Console.WriteLine("Welcome to the Compile and Deploy Oracle Forms and Reports Facility"); Console.WriteLine("==================================================================="); Console.WriteLine(); Console.WriteLine("Please enter the acronym of the project to work on from the following list:"); Console.WriteLine(); Console.WriteLine("--------"); Console.WriteLine("- BCS"); Console.WriteLine("- COPEN"); Console.WriteLine("- FCDD"); Console.WriteLine("--------"); Console.WriteLine(); Console.Write("Selection: "); project.Properties["project.type"] = Console.ReadLine(); Console.WriteLine(); Console.Write("Please enter username: "); string username = Console.ReadLine(); project.Properties["username"] = username; string password = ReturnPassword(); project.Properties["password"] = password Console.WriteLine(); Console.Write("Please enter database: "); string database = Console.ReadLine(); project.Properties["database"] = database Console.WriteLine(); //Call method to verify user credentials Console.WriteLine(); Console.WriteLine("Compiling files..."; } public static string ReturnPassword() { Console.Write("Please enter password: "); string password = ""; ConsoleKeyInfo nextKey = Console.ReadKey(true); while (nextKey.Key != ConsoleKey.Enter) { if (nextKey.Key == ConsoleKey.Backspace) { if (password.Length > 0) { password = password.Substring(0, password.Length - 1); Console.Write(nextKey.KeyChar); Console.Write(" "); Console.Write(nextKey.KeyChar); } } else { password += nextKey.KeyChar; Console.Write("*"); } nextKey = Console.ReadKey(true); } return password; } } Having done a bit of research, I find that you can connect to Oracle databases using the System.Data.OracleClient namespace clicky. However, as mentioned in the link, Microsoft is discontinuing support for this so it is not a desireable solution. I have also fonud that Oracle provides its own classes for connecting to Oracle databases clicky. However, this only seems to support connecting to Oracle 9 or newer databases (clicky) so it is not feasible solution as I also need to connect to Oracle 6i databases. I could achieve this by calling a bat script from within the C# script, but I would much prefer to have a single build file for simplicity. Ideally, I would like to run a series of commands such as is contained in the following .bat script: rem -- Set Database SID -- set ORACLE_SID=%DBSID% sqlplus -s %nameofuser%/%password%@%dbsid% set cmdsep on set cmdsep '"'; --" set term on set echo off set heading off select '========================================' || CHR(10) || 'Have checked and found both Password and ' || chr(10) || 'Database Identifier are valid, continuing ...' || CHR(10) || '========================================' from dual; exit; This requires me to set the environment variable of ORACLE_SID and then run sqlplus in silent mode (-s) followed by a series of sql set commands (set x), the actual select statement and an exit command. Can I achieve this within a c# script without calling a bat script, or am I forced to call a bat script? Thanks in advance!

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  • Condition Variable in Shared Memory - is this code POSIX-conformant?

    - by GrahamS
    We've been trying to use a mutex and condition variable to synchronise access to named shared memory on a LynuxWorks LynxOS-SE system (POSIX-conformant). One shared memory block is called "/sync" and contains the mutex and condition variable, the other is "/data" and contains the actual data we are syncing access to. We're seeing failures from pthread_cond_signal() if both processes don't perform the mmap() calls in exactly the same order, or if one process mmaps in some other piece of shared memory before it mmaps the sync memory. This example code is about as short as I can make it: #include <sys/types.h> #include <sys/stat.h> #include <sys/mman.h> #include <sys/file.h> #include <stdlib.h> #include <pthread.h> #include <errno.h> #include <iostream> #include <string> using namespace std; static const string shm_name_sync("/sync"); static const string shm_name_data("/data"); struct shared_memory_sync { pthread_mutex_t mutex; pthread_cond_t condition; }; struct shared_memory_data { int a; int b; }; //Create 2 shared memory objects // - sync contains 2 shared synchronisation objects (mutex and condition) // - data not important void create() { // Create and map 'sync' shared memory int fd_sync = shm_open(shm_name_sync.c_str(), O_CREAT|O_RDWR, S_IRUSR|S_IWUSR); ftruncate(fd_sync, sizeof(shared_memory_sync)); void* addr_sync = mmap(0, sizeof(shared_memory_sync), PROT_READ|PROT_WRITE, MAP_SHARED, fd_sync, 0); shared_memory_sync* p_sync = static_cast<shared_memory_sync*> (addr_sync); // init the cond and mutex pthread_condattr_t cond_attr; pthread_condattr_init(&cond_attr); pthread_condattr_setpshared(&cond_attr, PTHREAD_PROCESS_SHARED); pthread_cond_init(&(p_sync->condition), &cond_attr); pthread_condattr_destroy(&cond_attr); pthread_mutexattr_t m_attr; pthread_mutexattr_init(&m_attr); pthread_mutexattr_setpshared(&m_attr, PTHREAD_PROCESS_SHARED); pthread_mutex_init(&(p_sync->mutex), &m_attr); pthread_mutexattr_destroy(&m_attr); // Create the 'data' shared memory int fd_data = shm_open(shm_name_data.c_str(), O_CREAT|O_RDWR, S_IRUSR|S_IWUSR); ftruncate(fd_data, sizeof(shared_memory_data)); void* addr_data = mmap(0, sizeof(shared_memory_data), PROT_READ|PROT_WRITE, MAP_SHARED, fd_data, 0); shared_memory_data* p_data = static_cast<shared_memory_data*> (addr_data); // Run the second process while it sleeps here. sleep(10); int res = pthread_cond_signal(&(p_sync->condition)); assert(res==0); // <--- !!!THIS ASSERT WILL FAIL ON LYNXOS!!! munmap(addr_sync, sizeof(shared_memory_sync)); shm_unlink(shm_name_sync.c_str()); munmap(addr_data, sizeof(shared_memory_data)); shm_unlink(shm_name_data.c_str()); } //Open the same 2 shared memory objects but in reverse order // - data // - sync void open() { sleep(2); int fd_data = shm_open(shm_name_data.c_str(), O_RDWR, S_IRUSR|S_IWUSR); void* addr_data = mmap(0, sizeof(shared_memory_data), PROT_READ|PROT_WRITE, MAP_SHARED, fd_data, 0); shared_memory_data* p_data = static_cast<shared_memory_data*> (addr_data); int fd_sync = shm_open(shm_name_sync.c_str(), O_RDWR, S_IRUSR|S_IWUSR); void* addr_sync = mmap(0, sizeof(shared_memory_sync), PROT_READ|PROT_WRITE, MAP_SHARED, fd_sync, 0); shared_memory_sync* p_sync = static_cast<shared_memory_sync*> (addr_sync); // Wait on the condvar pthread_mutex_lock(&(p_sync->mutex)); pthread_cond_wait(&(p_sync->condition), &(p_sync->mutex)); pthread_mutex_unlock(&(p_sync->mutex)); munmap(addr_sync, sizeof(shared_memory_sync)); munmap(addr_data, sizeof(shared_memory_data)); } int main(int argc, char** argv) { if(argc>1) { open(); } else { create(); } return (0); } Run this program with no args, then another copy with args, and the first one will fail at the assert checking the pthread_cond_signal(). But change the open() function to mmap() the "/sync" memory first and it will all work fine. This seems like a major bug in LynxOS but LynuxWorks claim that using mutex and condition variable in this way is not covered by the POSIX standard, so they are not interested. Can anyone determine if this code does violate POSIX? Or does anyone have any convincing documentation that it is POSIX compliant?

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