Helper that loads a shared library and holds its POSIX handle. More...

#include <gdl.h>

Public Member Functions
	DynamicLib ()=default
	Default constructor (does not load anything).

	DynamicLib (std::shared_ptr< GLogger > logger, std::string path)
	Construct and attempt to load a dynamic library.

	~DynamicLib ()
	Destructor closes the library handle (if loaded).

Data Fields
dlhandle	handle = nullptr
	POSIX handle of the dynamic library.

Detailed Description

This structure centralizes:

file discovery (try user path, then GEMC install lib/, then build/ for test runs),
opening the library using dlopen, and
closing the library using dlclose in the destructor.

Given a library name or path:

Try the provided value as-is.
If not found, try ${GEMC_ROOT}/lib/<name>.
If still not found, try ${GEMC_ROOT}/build/<name> (useful for Meson tests in the build tree).

Errors are reported via the configured GLogger instance using:

ERR_DLNOTFOUND when no file is found, and
ERR_DLHANDLENOTFOUND when the file exists but dlopen returns null (with dlerror text).

Definition at line 50 of file gdl.h.

Constructor & Destructor Documentation

DynamicLib::DynamicLib ( )

default

DynamicLib::DynamicLib	(	std::shared_ptr< GLogger >	logger,
		std::string	path )

inline

Parameters

logger	Logger used for messages and errors.
path	Library filename or path (e.g., `myplugin.gplugin`).

The constructor attempts multiple locations (see class description) and, if found, opens the library via load_lib().

Definition at line 82 of file gdl.h.

DynamicLib::~DynamicLib ( )

inline

Definition at line 130 of file gdl.h.

dlhandle DynamicLib::handle = nullptr

This is the value returned by dlopen and is later consumed by dlsym.

Definition at line 123 of file gdl.h.

The documentation for this struct was generated from the following file: