Commit d4ed91c6 authored by Nick Mathewson's avatar Nick Mathewson 🌉
Browse files

Set dynamic-locking callbacks in openssl. These can be more efficient when openssl uses them.

svn:r15222
parent 8f5afe49
Changes in version 0.2.1.2-alpha - 2008-??-??
o Minor features:
- Allow OpenSSL to use dynamic locks if it wants.
Changes in version 0.2.1.1-alpha - 2008-06-13
o Major features:
- More work on making our TLS handshake blend in: modify the list
......
......@@ -2227,6 +2227,43 @@ _openssl_locking_cb(int mode, int n, const char *file, int line)
tor_mutex_release(_openssl_mutexes[n]);
}
struct CRYPTO_dynlock_value {
tor_mutex_t *lock;
};
static struct CRYPTO_dynlock_value *
_openssl_dynlock_create_cb(const char *file, int line)
{
struct CRYPTO_dynlock_value *v;
(void)file;
(void)line;
v = tor_malloc(sizeof(struct CRYPTO_dynlock_value));
v->lock = tor_mutex_new();
return v;
}
static void
_openssl_dynlock_lock_cb(int mode, struct CRYPTO_dynlock_value *v,
const char *file, int line)
{
(void)file;
(void)line;
if (mode & CRYPTO_LOCK)
tor_mutex_acquire(v->lock);
else
tor_mutex_release(v->lock);
}
static void
_openssl_dynlock_destroy_cb(struct CRYPTO_dynlock_value *v,
const char *file, int line)
{
(void)file;
(void)line;
tor_mutex_free(v->lock);
tor_free(v);
}
/** Helper: Construct mutexes, and set callbacks to help OpenSSL handle being
* multithreaded. */
static int
......@@ -2240,6 +2277,9 @@ setup_openssl_threading(void)
_openssl_mutexes[i] = tor_mutex_new();
CRYPTO_set_locking_callback(_openssl_locking_cb);
CRYPTO_set_id_callback(tor_get_thread_id);
CRYPTO_set_dynlock_create_callback(_openssl_dynlock_create_cb);
CRYPTO_set_dynlock_lock_callback(_openssl_dynlock_lock_cb);
CRYPTO_set_dynlock_destroy_callback(_openssl_dynlock_destroy_cb);
return 0;
}
#else
......
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