Erlang ports and thread safety -

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i'm looking call c function erlang process via erlang port, described here:

http://www.erlang.org/doc/tutorial/c_port.html

in production need multiple erlang processes calling c function in parallel, each different set of arguments.

my question is, thread safe @ c function level ?

the docs talk controlling erlang process creating 'connected process', sounds if responsible creating isolated instance of 'external program' (c function).

so sounds it's thread safe @ c level i'd 100% sure.

tia

it may depend on implementation, ports, answer "yes" reason mention. if using nif , using shared memory inside of nif, have concern thread safety.

with ports, however, "controlling process" acts serialization (as in arranged in series) layer, meaning requests handled 1 after other , not @ once. moreover, believe (but not know certain) communication protocol ports use requires serial execution.


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