Obtains the per-thread context associated with the specified key.
cma_key_get_context(
                     key,
                     context_value);
 
Argument         Data Type               Access
key              opaque cma_t_key        read
context_value    opaque cma_t_address    write
#includevoid cma_key_get_context ( cma_t_key key, cma_t_address *context_value);
The exception cma_e_badparam is raised if the context key is invalid.