Historically these two lists were different due to ompi_free_list_t
dependencies in ompi (mpool). Those dependencies have since been moved
to opal so it is safe to (finally) combine them. The combined free
list comes in three flavors:
- Single-threaded. Only to be used when it is guaranteed that no
concurrent access will be made to the free list. Single-threaded
functions are suffixed with _st.
- Mutli-threaded. To be used when the free list may be accessed by
multiple threads despite the setting of opal_using_threads.
Multi-threaded functins are suffixed with _mt.
- Conditionally multi-threaded. Common use case. These functions are
thread-safe if opal_using_threads is set to true.
Compatibility functions for the ompi_free_list_t and the old accessor
functions (OPAL_FREE_LIST_*) are available while the code base is
transitioned to the new class/functions.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
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