Add a function to detect if we have async or not

Add the ASYNC_is_capable() function and use it in speed.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>

3 files changed, 15 insertions, 1 deletions

diff --git a/crypto/async/arch/async_null.c b/crypto/async/arch/async_null.c
index 7b93090a9a..f0b8a5c315 100644
--- a/crypto/async/arch/async_null.c
+++ b/crypto/async/arch/async_null.c
@@ -55,6 +55,11 @@
 
 #ifdef ASYNC_NULL
 
+int ASYNC_is_capable(void)
+{
+    return 0;
+}
+
 void async_local_cleanup(void)
 {
 }
diff --git a/crypto/async/arch/async_posix.c b/crypto/async/arch/async_posix.c
index 553ec664e2..2d9e5102fc 100644
--- a/crypto/async/arch/async_posix.c
+++ b/crypto/async/arch/async_posix.c
@@ -60,10 +60,14 @@
 
 #define STACKSIZE       32768
 
-void async_local_cleanup(void)
+int ASYNC_is_capable(void)
 {
+    return 1;
 }
 
+void async_local_cleanup(void)
+{
+}
 
 int async_fibre_makecontext(async_fibre *fibre)
 {
diff --git a/crypto/async/arch/async_win.c b/crypto/async/arch/async_win.c
index 6b948c3d9c..4f4c799e98 100644
--- a/crypto/async/arch/async_win.c
+++ b/crypto/async/arch/async_win.c
@@ -58,6 +58,11 @@
 # include <windows.h>
 # include "internal/cryptlib.h"
 
+int ASYNC_is_capable(void)
+{
+    return 1;
+}
+
 void async_local_cleanup(void)
 {
     async_ctx *ctx = async_get_ctx();