Convert BN_MONT_CTX to new-style locking.
This introduces a per-RSA/DSA/DH lock. This is good for lock contention,
although pthread locks are depressingly bloated.
Change-Id: I07c4d1606fc35135fc141ebe6ba904a28c8f8a0c
Reviewed-on: https://boringssl-review.googlesource.com/4324
Reviewed-by: Adam Langley <agl@google.com>
diff --git a/include/openssl/bn.h b/include/openssl/bn.h
index 838870d..917beaf 100644
--- a/include/openssl/bn.h
+++ b/include/openssl/bn.h
@@ -124,6 +124,7 @@
#define OPENSSL_HEADER_BN_H
#include <openssl/base.h>
+#include <openssl/thread.h>
#include <stdio.h> /* for FILE* */
@@ -711,15 +712,13 @@
OPENSSL_EXPORT int BN_MONT_CTX_set(BN_MONT_CTX *mont, const BIGNUM *mod,
BN_CTX *ctx);
-/* BN_MONT_CTX_set_locked takes the lock indicated by |lock| and checks whether
- * |*pmont| is NULL. If so, it creates a new |BN_MONT_CTX| and sets the modulus
- * for it to |mod|. It then stores it as |*pmont| and returns it, or NULL on
- * error.
+/* BN_MONT_CTX_set_locked takes |lock| and checks whether |*pmont| is NULL. If
+ * so, it creates a new |BN_MONT_CTX| and sets the modulus for it to |mod|. It
+ * then stores it as |*pmont| and returns it, or NULL on error.
*
* If |*pmont| is already non-NULL then the existing value is returned. */
-OPENSSL_EXPORT BN_MONT_CTX *BN_MONT_CTX_set_locked(BN_MONT_CTX **pmont,
- int lock, const BIGNUM *mod,
- BN_CTX *ctx);
+BN_MONT_CTX *BN_MONT_CTX_set_locked(BN_MONT_CTX **pmont, CRYPTO_MUTEX *lock,
+ const BIGNUM *mod, BN_CTX *bn_ctx);
/* BN_to_montgomery sets |ret| equal to |a| in the Montgomery domain. It
* returns one on success and zero on error. */
