openssl/include
Neil Horman d0e1a0ae70 RCU lock implementation
Introduce an RCU lock implementation as an alternative locking mechanism
to openssl.  The api is documented in the ossl_rcu.pod
file

Read side implementaiton is comparable to that of RWLOCKS:
ossl_rcu_read_lock(lock);
<
critical section in which data can be accessed via
ossl_derefrence
>
ossl_rcu_read_unlock(lock);

Write side implementation is:
ossl_rcu_write_lock(lock);
<
critical section in which data can be updated via
ossl_assign_pointer
and stale data can optionally be scheduled for removal
via ossl_rcu_call
>
ossl_rcu_write_unlock(lock);
...
ossl_synchronize_rcu(lock);

ossl_rcu_call fixup

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22729)
2024-02-01 08:33:25 -05:00
..
crypto Move discovery of the legacy alg type into the keymgmt 2024-01-15 16:37:32 +01:00
internal RCU lock implementation 2024-02-01 08:33:25 -05:00
openssl QUIC APL: Implement optimised FIN API 2024-01-23 14:20:06 +00:00