- #ifdef _WIN32
- # include <windows.h>
- #endif
- #include <openssl/crypto.h>
-
- static CRYPTO_ONCE once = CRYPTO_ONCE_STATIC_INIT;
- static CRYPTO_RWLOCK *lock;
-
- static void myinit(void)
- {
- lock = CRYPTO_THREAD_lock_new();
- }
-
- static int mylock(void)
- {
- if (!CRYPTO_THREAD_run_once(&once, void init) || lock == NULL)
- return 0;
- return CRYPTO_THREAD_write_lock(lock);
- }
-
- static int myunlock(void)
- {
- return CRYPTO_THREAD_unlock(lock);
- }
-
- int serialized(void)
- {
- int ret = 0;
-
- if (mylock()) {
- /* Your code here, do not return without releasing the lock! */
- ret = ... ;
- }
- myunlock();
- return ret;
- }
+ #ifdef _WIN32
+ # include <windows.h>
+ #endif
+ #include <openssl/crypto.h>
+
+ static CRYPTO_ONCE once = CRYPTO_ONCE_STATIC_INIT;
+ static CRYPTO_RWLOCK *lock;
+
+ static void myinit(void)
+ {
+ lock = CRYPTO_THREAD_lock_new();
+ }
+
+ static int mylock(void)
+ {
+ if (!CRYPTO_THREAD_run_once(&once, void init) || lock == NULL)
+ return 0;
+ return CRYPTO_THREAD_write_lock(lock);
+ }
+
+ static int myunlock(void)
+ {
+ return CRYPTO_THREAD_unlock(lock);
+ }
+
+ int serialized(void)
+ {
+ int ret = 0;
+
+ if (mylock()) {
+ /* Your code here, do not return without releasing the lock! */
+ ret = ... ;
+ }
+ myunlock();
+ return ret;
+ }