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Problem: reading from /dev/urandom is clunky

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Solution: if available use the getrandom function as it doesn't
require any synchronization, state or cleanup
This commit is contained in:
Luca Boccassi
2017-07-27 21:37:12 +01:00
parent 2626fdfa23
commit fbb6bbdcb8
6 changed files with 66 additions and 5 deletions
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4
src/random.cpp
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@@ -89,7 +89,7 @@ static zmq::mutex_t random_sync;
void zmq::random_open (void)
{
#if defined (ZMQ_USE_LIBSODIUM) || \
(defined (ZMQ_USE_TWEETNACL) && !defined (ZMQ_HAVE_WINDOWS))
(defined (ZMQ_USE_TWEETNACL) && !defined (ZMQ_HAVE_WINDOWS) && !defined (ZMQ_HAVE_GETRANDOM))
scoped_lock_t locker (random_sync);
if (random_refcount == 0) {
@@ -106,7 +106,7 @@ void zmq::random_open (void)
void zmq::random_close (void)
{
#if defined (ZMQ_USE_LIBSODIUM) || \
(defined (ZMQ_USE_TWEETNACL) && !defined (ZMQ_HAVE_WINDOWS))
(defined (ZMQ_USE_TWEETNACL) && !defined (ZMQ_HAVE_WINDOWS) && !defined (ZMQ_HAVE_GETRANDOM))
scoped_lock_t locker (random_sync);
--random_refcount;