diff options
| author | Andy Polyakov <appro@openssl.org> | 2018-08-13 22:53:14 +0200 |
|---|---|---|
| committer | Andy Polyakov <appro@openssl.org> | 2018-08-17 12:40:39 +0200 |
| commit | d2b863643d94704abd9840519cfc54d22d0481fe (patch) | |
| tree | 1de96a34e4be5136cb43333291483cd25a7ecaa2 /doc | |
| parent | 2805ee1e095a78f596dc7adf778441e2edb9f15c (diff) | |
crypto/threads_*: remove CRYPTO_atomic_{read|write}.
CRYPTO_atomic_read was added with intention to read statistics counters,
but readings are effectively indistinguishable from regular load (even
in non-lock-free case). This is because you can get out-dated value in
both cases. CRYPTO_atomic_write was added for symmetry and was never used.
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/6883)
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/man3/CRYPTO_THREAD_run_once.pod | 17 |
1 files changed, 2 insertions, 15 deletions
diff --git a/doc/man3/CRYPTO_THREAD_run_once.pod b/doc/man3/CRYPTO_THREAD_run_once.pod index a290278b70..3277613193 100644 --- a/doc/man3/CRYPTO_THREAD_run_once.pod +++ b/doc/man3/CRYPTO_THREAD_run_once.pod @@ -4,8 +4,8 @@ CRYPTO_THREAD_run_once, CRYPTO_THREAD_lock_new, CRYPTO_THREAD_read_lock, CRYPTO_THREAD_write_lock, -CRYPTO_THREAD_unlock, CRYPTO_THREAD_lock_free, CRYPTO_atomic_add, -CRYPTO_atomic_read, CRYPTO_atomic_write - OpenSSL thread support +CRYPTO_THREAD_unlock, CRYPTO_THREAD_lock_free, +CRYPTO_atomic_add - OpenSSL thread support =head1 SYNOPSIS @@ -21,8 +21,6 @@ CRYPTO_atomic_read, CRYPTO_atomic_write - OpenSSL thread support void CRYPTO_THREAD_lock_free(CRYPTO_RWLOCK *lock); int CRYPTO_atomic_add(int *val, int amount, int *ret, CRYPTO_RWLOCK *lock); - int CRYPTO_atomic_read(int *val, int *ret, CRYPTO_RWLOCK *lock); - int CRYPTO_atomic_write(int *val, int n, CRYPTO_RWLOCK *lock); =head1 DESCRIPTION @@ -77,17 +75,6 @@ operations are supported on the specific platform. Because of this, if a variable is modified by CRYPTO_atomic_add() then CRYPTO_atomic_add() must be the only way that the variable is modified. -=item * - -CRYPTO_atomic_read() atomically reads B<val> and returns the result of -the operation in B<ret>. B<lock> will be locked, unless atomic operations -are supported on the specific platform. - -=item * - -CRYPTO_atomic_write() atomically writes B<n> to B<val>. B<lock> will be -locked, unless atomic operations are supported on the specific platform. - =back =head1 RETURN VALUES |