Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

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Chapter 13. Boost.DLL

Renato Forti

Antony Polukhin

Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

Table of Contents

Motivation
Getting started
Tutorial
Plugin basics
Factory method in plugin
Searching for a symbol in multiple plugins
Linking plugin into the executable
Symbol shadowing problem (Linux)
Executing callbacks on library unload
Querying libraries for symbols
Advanced library reference counting
Importing a C function from Windows dll
Mangled Import
Support & Requirements
Mangled Import Example
Class Import
Overloading qualifiers
Missuses
Reference
Shared Library Reference
Shared Library Refcountable Reference
Limitations
Exporting weak symbols (Fails on MinGW, Android)
User defined section names (Fails on SunOS + Oracle Solaris Studio Compilers)
Thread safe library loading (Fails on FreeBSD, MacOS, iOS and some other)
Nested Function Definitions
F.A.Q.
Design Rationale
ABI portability across compilers
User's plugin API
Performance and memory allocations
Self loading
Aliases vs Mangling
Dependencies
Revision History
Acknowledgements

Adding a specific features to an existing software applications at runtime could be useful in many cases. Such extensions, or plugins, are usually implemented using Dynamic Library Modules (DLL,SO/DSO) loaded at runtime.

This library was designed to simplify plugin development using C++ in a portable cross-platform manner.

Library provides a portable across platforms way to:

  • load libraries
  • import any native functions and variables
  • make alias names for C++ mangled functions and symbols
  • query libraries for sections and exported symbols
  • self loading and self querying
  • getting program and module location by exported symbol

Last revised: April 11, 2018 at 14:10:08 GMT


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