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Return-Path: <tamas@bitsofproof.com>
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From: Tamas Blummer <tamas@bitsofproof.com>
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Subject: [bitcoin-dev] libconsensus assertion fails if used in multiple
threads
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We integrated libconsensus into bits of proof. It works well, in-line =
for all test cases with our Java engine and is about 50% faster on a =
single thread.
The performance advantage unfortunatelly reverses if libconsensus is =
executed on several threads simultaneously as we do with the Java =
engine, since an error:
Assertion failed: (pkey !=3D NULL), function CECKey, file =
ecwrapper.cpp, line 96.
arises under that stress.
I guess that the cause is that thread callbacks as advised for OpenSSL =
on https://www.openssl.org/docs/crypto/threads.html are not registered.
Registering those however would require access to OpenSSL functions, not =
exported from the lib.
I=E2=80=99d be thankful for a pointer to a workaround.
Tamas Blummer
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