[ruby/openssl] ssl: create a temporary frozen string buffer when writing
Since a blocking SSLSocket#syswrite call allows context switches while waiting for the underlying socket to be ready, we must freeze the string buffer to prevent other threads from modifying it.
Added by rhenium (Kazuki Yamaguchi) about 4 years ago
[ruby/openssl] ssl: create a temporary frozen string buffer when writing
Since a blocking SSLSocket#syswrite call allows context switches while
waiting for the underlying socket to be ready, we must freeze the string
buffer to prevent other threads from modifying it.
Reference: https://github.com/ruby/openssl/issues/452
https://github.com/ruby/openssl/commit/aea874bc6e