bson_memory man page
bson_memory — Memory Management
BSON Memory Abstraction.
Libbson contains a lightweight memory abstraction to make portability to new platforms easier. Additionally, it helps us integrate with interesting higher-level languages. One caveat, however, is that Libbson is not designed to deal with Out of Memory (OOM) situations. Doing so requires extreme diligence throughout the application stack that has rarely been implemented correctly. This may change in the future. As it stands now, Libbson will abort() under OOM situations.
To aid in language binding integration, Libbson allows for setting a custom memory allocator via bson_mem_set_vtable(). This allocation may be reversed via bson_mem_restore_vtable().
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