User-defined shared libraries support two loading methods, automatic
and manual load:
- An automatic load library is automatically loaded into the system
and added to the global space. At snippet execution time, the system
ensures that automatic load libraries are automatically opened, and
library symbols are available for use. The library is automatically
closed after the snippet finishes. Automatic load is the default method
for user-defined shared libraries.
- Manual load means that a user-defined shared library is directly
managed by a UDX. The UDX must use the dlopen(), dlsym(),
and dlclose() functions to load the library, reference
symbols, and to close the library when finished. UDXs are responsible
for opening and closing the manual load libraries when they are needed.
If you create a shared library that has dependencies on other user-defined
shared libraries, define the top-level library as AUTOMATIC LOAD.
Then, define the subsequent or referenced libraries as AUTOMATIC LOAD.
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