1 files changed, 40 insertions, 0 deletions
diff --git a/src/openssl-thread.c b/src/openssl-thread.c
new file mode 100644
index 0000000..8dd0506
--- /dev/null
+++ b/src/openssl-thread.c
@@ -0,0 +1,40 @@
+#include <pthread.h>
+#include <openssl/crypto.h>
+
+static pthread_mutex_t *mutexes;
+                                                                                                                                                                         
+static void pthreads_locking_callback(int mode, int n, const char *file, int line) {
+    if (mode & CRYPTO_LOCK)
+        pthread_mutex_lock(mutexes+n);
+    else
+        pthread_mutex_unlock(mutexes+n);
+}                                                                                                                                                                     
+
+static unsigned long pthreads_thread_id(void) {
+    return (unsigned long)pthread_self();
+}
+
+void openssl_thread_setup(void) {
+    int i, l;
+    
+    mutexes = OPENSSL_malloc((l = CRYPTO_num_locks()) * sizeof(pthread_mutex_t));
+
+    for (i = 0; i < l; i++)
+        pthread_mutex_init(mutexes+i, NULL);
+                                                                                                                                                                         
+    CRYPTO_set_id_callback(pthreads_thread_id);
+    CRYPTO_set_locking_callback(pthreads_locking_callback);
+}
+
+void openssl_thread_cleanup(void) {
+    int i, l;
+    
+    CRYPTO_set_locking_callback(NULL);
+
+    l = CRYPTO_num_locks();
+    for (i = 0; i < l; i++)
+        pthread_mutex_destroy(mutexes+i);
+
+    OPENSSL_free(mutexes);
+}
+