diff options
Diffstat (limited to 'doc/man3/CRYPTO_THREAD_run_once.pod')
| -rw-r--r-- | doc/man3/CRYPTO_THREAD_run_once.pod | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/doc/man3/CRYPTO_THREAD_run_once.pod b/doc/man3/CRYPTO_THREAD_run_once.pod index 45545c82a8..b256a18637 100644 --- a/doc/man3/CRYPTO_THREAD_run_once.pod +++ b/doc/man3/CRYPTO_THREAD_run_once.pod @@ -32,9 +32,10 @@ supported by OpenSSL. The following multi-threading function are provided: -=over 4 +=over 2 =item * + CRYPTO_THREAD_run_once() can be used to perform one-time initialization. The B<once> argument must be a pointer to a static object of type B<CRYPTO_ONCE> that was statically initialized to the value @@ -45,22 +46,28 @@ In particular, this can be used to allocate locks in a thread-safe manner, which can then be used with the locking functions below. =item * + CRYPTO_THREAD_lock_new() allocates, initializes and returns a new read/write lock. =item * + CRYPTO_THREAD_read_lock() locks the provided B<lock> for reading. =item * + CRYPTO_THREAD_write_lock() locks the provided B<lock> for writing. =item * + CRYPTO_THREAD_unlock() unlocks the previously locked B<lock>. =item * + CRYPTO_THREAD_lock_frees() frees the provided B<lock>. =item * + CRYPTO_atomic_add() atomically adds B<amount> to 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. Because of this, if a |