From 780b92ada9afcf1d58085a83a0b9e6bc982203d1 Mon Sep 17 00:00:00 2001 From: Lorry Tar Creator Date: Tue, 17 Feb 2015 17:25:57 +0000 Subject: Imported from /home/lorry/working-area/delta_berkeleydb/db-6.1.23.tar.gz. --- docs/programmer_reference/env_faq.html | 77 ++++++++++++++++++---------------- 1 file changed, 42 insertions(+), 35 deletions(-) (limited to 'docs/programmer_reference/env_faq.html') diff --git a/docs/programmer_reference/env_faq.html b/docs/programmer_reference/env_faq.html index 7775c3d3..be1a33aa 100644 --- a/docs/programmer_reference/env_faq.html +++ b/docs/programmer_reference/env_faq.html @@ -14,7 +14,7 @@
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Library Version 11.2.5.3

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Library Version 12.1.6.1

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Prev Chapter 9.  - The Berkeley DB Environment - Chapter 9.  The Berkeley DB Environment  Next
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  1. - I'm using multiple processes to access an Berkeley DB database - environment; is there any way to ensure that two processes don't run transactional - recovery at the same time, or that all processes have exited the database - environment so that recovery can be run? -

    + I'm using multiple processes to + access an Berkeley DB database environment; is + there any way to ensure that two processes don't + run transactional recovery at the same time, or + that all processes have exited the database + environment so that recovery can be + run? +

    - See Handling failure in Transactional Data Store applications and - Architecting Transactional Data Store applications for a full - discussion of this topic. -

    + See Handling failure in Transactional Data Store applications and Architecting Transactional Data + Store applications for a full + discussion of this topic. +

  2. - How can I associate application information with a DB or - DB_ENV handle? -

    + How can I associate application + information with a DB or DB_ENV + handle? +

    - In the C API, the DB and DB_ENV structures each contain an "app_private" field intended - to be used to reference application-specific information. See the db_create() and - db_env_create() documentation for more information. -

    + In the C API, the DB and DB_ENV structures each + contain an "app_private" field intended to be used to + reference application-specific information. See the + db_create() and db_env_create() documentation for more + information. +

    - In the C++ or Java APIs, the easiest way to associate application-specific data with a - handle is to subclass the Db or DbEnv, for example subclassing - Db to get MyDb. Objects of type MyDb will still have the Berkeley DB API - methods available on them, and you can put any extra data or methods you want into the - MyDb class. If you are using "callback" APIs that take Db or - DbEnv arguments (for example, - Db::set_bt_compare()) - these will always be called with the Db or DbEnv objects you - create. So if you always use MyDb objects, you will be able to take the first argument - to the callback function and cast it to a MyDb (in C++, cast it to (MyDb*)). That will - allow you to access your data members or methods. -

    + In the C++ or Java APIs, the easiest way to + associate application-specific data with a handle is + to subclass the Db or DbEnv, for + example subclassing Db to get MyDb. + Objects of type MyDb will still have the Berkeley DB + API methods available on them, and you can put any + extra data or methods you want into the MyDb class. If + you are using "callback" APIs that take Db + or DbEnv arguments (for example, Db::set_bt_compare()) + these will always be called with the Db or DbEnv + objects you create. So if you always use MyDb objects, + you will be able to take the first argument to the + callback function and cast it to a MyDb (in C++, cast + it to (MyDb*)). That will allow you to access your + data members or methods. +

@@ -95,9 +103,8 @@ Home -  Chapter 10.  - Berkeley DB Concurrent Data Store Applications - +  Chapter 10.  Berkeley DB Concurrent Data Store + Applications -- cgit v1.2.1