OpenSSL s_client introduces some delay on Windows. With all clients
running sequentially, this delay is big enough to break CI. This fix runs
the clients in parallel (unless the test includes renegotiation),
reducing the total run time.

Reviewed-By: James M Snell <jasnell@gmail.com>
PR-URL: #25368

Different servers must use different ports. Since we can count only on
common.PORT and common.PORT+1, run only 2 servers in parallel.

Reviewed-By: James M Snell <jasnell@gmail.com>
PR-URL: #25368

When running in parallel, it is not easy to identify what server and
client failed when the test fails. This adds identifiers to all lines
of console output.

Reviewed-By: James M Snell <jasnell@gmail.com>
PR-URL: #25368

Now that the test is fixed, node-accept-pull-request should
fail when the test fails.

Reviewed-By: James M Snell <jasnell@gmail.com>
PR-URL: #25368

For better performance of the test, the parent kills child processes
so as not to wait them to be ended.

(cherry picked from commit 833b236)

Reviewed-By: James M Snell <jasnell@gmail.com>
PR-URL: #25368

In openssl s_client on Windows, RAND_screen() is invoked to initialize
random state but it takes several seconds in each connection.
This added -no_rand_screen to openssl s_client on Windows to skip
RAND_screen() and gets a better performance in the unit test of
test-tls-server-verify.
Do not enable this except to use in the unit test.

(cherry picked from commit 9f0f7c3)

Reviewed-By: James M Snell <jasnell@gmail.com>
PR-URL: #25368

This improves the performance of openssl s_client on Windows and
gains several seconds to finish test-tls-server-verify.

(cherry picked from commit 2ff517e)

Reviewed-By: James M Snell <jasnell@gmail.com>
PR-URL: #25368

A deadlock happens when sampler initiated by SIGPROF tries to lock
the thread and the thread is already locked by the same thread. As
a result, other thread involved in sampling process hangs. The
patch adds a check for thread lock before continuing sampler
operation.

The fix has been tested on a sample app under load with and without
profiling turned on.

Fixes issue #14576 and specifically the duplicate issue #25295

Reviewed-By: Julien Gilli <julien.gilli@joyent.com>
PR-URL: #25309

Reviewed-By: Julien Gilli <julien.gilli@joyent.com>
PR-URL: #25482

Fixes: #9310

Reviewed-By: Julien Gilli <julien.gilli@joyent.com>
PR-URL: #25475

The -fno-strict-aliasing flag was added to fix compilation warnings when
building Node.js with GCC <= 4.4

PR: #25141

Reviewed-By: Julien Gilli <julien.gilli@joyent.com>
PR-URL: #25475

Test of 512 bits key is failed after upgrading openssl-1.0.1o due to
its limit of 768 bits key size. Remove it and start from 1024 bits
test.