#include "internal/dso.h"
#include "internal/store.h"
+
+typedef struct global_lock_st {
+ CRYPTO_RWLOCK *lock;
+ const char *name;
+ struct global_lock_st *next;
+} GLOBAL_LOCK;
+
+static GLOBAL_LOCK *global_locks;
+
static int stopped = 0;
static void ossl_init_thread_stop(struct thread_local_inits_st *locals);
static OPENSSL_INIT_STOP *stop_handlers = NULL;
static CRYPTO_RWLOCK *init_lock = NULL;
+static CRYPTO_RWLOCK *glock_lock = NULL;
static CRYPTO_ONCE base = CRYPTO_ONCE_STATIC_INIT;
static int base_inited = 0;
#ifndef OPENSSL_SYS_UEFI
atexit(OPENSSL_cleanup);
#endif
- if ((init_lock = CRYPTO_THREAD_lock_new()) == NULL)
+ if ((init_lock = CRYPTO_THREAD_lock_new()) == NULL
+ || (glock_lock = CRYPTO_THREAD_lock_new()) == NULL)
return 0;
OPENSSL_cpuid_setup();
return;
stopped = 1;
+ /* Free list of global locks. */
+ while (global_locks != NULL) {
+ GLOBAL_LOCK *next = global_locks->next;
+
+ free(global_locks);
+ global_locks = next;
+ }
+
/*
* Thread stop may not get automatically called by the thread library for
* the very last thread in some situations, so call it directly.
stop_handlers = NULL;
CRYPTO_THREAD_lock_free(init_lock);
+ init_lock = NULL;
+ CRYPTO_THREAD_lock_free(glock_lock);
+ glock_lock = NULL;
/*
* We assume we are single-threaded for this function, i.e. no race
return 1;
}
-#ifdef OPENSSL_SYS_UNIX
+#ifndef OPENSSL_SYS_UNIX
+CRYPTO_RWLOCK *CRYPTO_THREAD_glock_new(const char *name)
+{
+ return CRYPTO_THREAD_lock_new();
+}
+#else
+
+
+/*
+ * Create a new global lock, return NULL on error.
+ */
+CRYPTO_RWLOCK *CRYPTO_THREAD_glock_new(const char *name)
+{
+ GLOBAL_LOCK *newlock;
+
+ if (name == NULL
+ || glock_lock == NULL
+ || (newlock = malloc(sizeof(*newlock))) == NULL)
+ return CRYPTO_THREAD_lock_new();
+ CRYPTO_THREAD_write_lock(glock_lock);
+ newlock->name = name;
+ newlock->lock = CRYPTO_THREAD_lock_new();
+ newlock->next = global_locks;
+ global_locks = newlock->next;
+ CRYPTO_THREAD_unlock(glock_lock);
+ return newlock->lock;
+}
+
+/*
+ * Unlock all global locks.
+ */
+static void unlock_all(void)
+{
+ GLOBAL_LOCK *lp;
+
+ CRYPTO_THREAD_write_lock(init_lock);
+ for (lp = global_locks; lp != NULL; lp = lp->next)
+ CRYPTO_THREAD_unlock(lp->lock);
+ CRYPTO_THREAD_unlock(init_lock);
+}
+
/*
* The following three functions are for OpenSSL developers. This is
* where we set/reset state across fork (called via pthread_atfork when
void OPENSSL_fork_prepare(void)
{
+ GLOBAL_LOCK *lp;
+
+ CRYPTO_THREAD_write_lock(init_lock);
+ for (lp = global_locks; lp != NULL; lp = lp->next)
+ CRYPTO_THREAD_write_lock(lp->lock);
+ CRYPTO_THREAD_unlock(init_lock);
}
void OPENSSL_fork_parent(void)
{
+ unlock_all();
}
void OPENSSL_fork_child(void)
{
+ unlock_all();
rand_fork();
}
#endif