Unix Programming - Common code among main executable and shared objects

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Common code among main executable and shared objects

Bhawna

2008-01-29, 4:38 am

Hi,

We are using a multithreaded application which has a few dynamic
shared objects associated with it. We are running it on Linux
platform. Few of the classes and code part is common among main
executable and other DSOs. The DSOs have been linked using linker
option -Bsymbolic and so are able to keep their seperate objects for
common classes.

The issue we are having is we want to keep a true singleton of the
common class without disturbing current linker option. For this
purpose, we are allocating a new TLS key and putting this key into
environment, so that once initialised same object is used among all
DSOs.

The simplified design of the class can be considered as follows

class singleton{

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