external/boringssl: bump revision.

This change bumps the BoringSSL revision to the current tip-of-tree.

Change-Id: I91d5bf467e16e8d86cb19a4de873985f524e5faa

1 files changed, 162 insertions, 0 deletions

diff --git a/src/crypto/thread_pthread.c b/src/crypto/thread_pthread.c
new file mode 100644
index 0000000..59c4b8d
--- /dev/null
+++ b/src/crypto/thread_pthread.c
@@ -0,0 +1,162 @@
+/* Copyright (c) 2015, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#include "internal.h"
+
+#if !defined(OPENSSL_WINDOWS) && !defined(OPENSSL_NO_THREADS)
+
+#include <pthread.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <openssl/mem.h>
+#include <openssl/type_check.h>
+
+
+OPENSSL_COMPILE_ASSERT(sizeof(CRYPTO_MUTEX) >= sizeof(pthread_rwlock_t),
+                       CRYPTO_MUTEX_too_small);
+
+void CRYPTO_MUTEX_init(CRYPTO_MUTEX *lock) {
+  if (pthread_rwlock_init((pthread_rwlock_t *) lock, NULL) != 0) {
+    abort();
+  }
+}
+
+void CRYPTO_MUTEX_lock_read(CRYPTO_MUTEX *lock) {
+  if (pthread_rwlock_rdlock((pthread_rwlock_t *) lock) != 0) {
+    abort();
+  }
+}
+
+void CRYPTO_MUTEX_lock_write(CRYPTO_MUTEX *lock) {
+  if (pthread_rwlock_wrlock((pthread_rwlock_t *) lock) != 0) {
+    abort();
+  }
+}
+
+void CRYPTO_MUTEX_unlock(CRYPTO_MUTEX *lock) {
+  if (pthread_rwlock_unlock((pthread_rwlock_t *) lock) != 0) {
+    abort();
+  }
+}
+
+void CRYPTO_MUTEX_cleanup(CRYPTO_MUTEX *lock) {
+  pthread_rwlock_destroy((pthread_rwlock_t *) lock);
+}
+
+void CRYPTO_STATIC_MUTEX_lock_read(struct CRYPTO_STATIC_MUTEX *lock) {
+  if (pthread_rwlock_rdlock(&lock->lock) != 0) {
+    abort();
+  }
+}
+
+void CRYPTO_STATIC_MUTEX_lock_write(struct CRYPTO_STATIC_MUTEX *lock) {
+  if (pthread_rwlock_wrlock(&lock->lock) != 0) {
+    abort();
+  }
+}
+
+void CRYPTO_STATIC_MUTEX_unlock(struct CRYPTO_STATIC_MUTEX *lock) {
+  if (pthread_rwlock_unlock(&lock->lock) != 0) {
+    abort();
+  }
+}
+
+void CRYPTO_once(CRYPTO_once_t *once, void (*init)(void)) {
+  pthread_once(once, init);
+}
+
+static pthread_mutex_t g_destructors_lock = PTHREAD_MUTEX_INITIALIZER;
+static thread_local_destructor_t g_destructors[NUM_OPENSSL_THREAD_LOCALS];
+
+static void thread_local_destructor(void *arg) {
+  if (arg == NULL) {
+    return;
+  }
+
+  thread_local_destructor_t destructors[NUM_OPENSSL_THREAD_LOCALS];
+  if (pthread_mutex_lock(&g_destructors_lock) != 0) {
+    return;
+  }
+  memcpy(destructors, g_destructors, sizeof(destructors));
+  pthread_mutex_unlock(&g_destructors_lock);
+
+  unsigned i;
+  void **pointers = arg;
+  for (i = 0; i < NUM_OPENSSL_THREAD_LOCALS; i++) {
+    if (destructors[i] != NULL) {
+      destructors[i](pointers[i]);
+    }
+  }
+
+  OPENSSL_free(pointers);
+}
+
+static pthread_once_t g_thread_local_init_once = PTHREAD_ONCE_INIT;
+static pthread_key_t g_thread_local_key;
+static int g_thread_local_failed = 0;
+
+static void thread_local_init(void) {
+  g_thread_local_failed =
+      pthread_key_create(&g_thread_local_key, thread_local_destructor) != 0;
+}
+
+void *CRYPTO_get_thread_local(thread_local_data_t index) {
+  CRYPTO_once(&g_thread_local_init_once, thread_local_init);
+  if (g_thread_local_failed) {
+    return NULL;
+  }
+
+  void **pointers = pthread_getspecific(g_thread_local_key);
+  if (pointers == NULL) {
+    return NULL;
+  }
+  return pointers[index];
+}
+
+int CRYPTO_set_thread_local(thread_local_data_t index, void *value,
+                            thread_local_destructor_t destructor) {
+  CRYPTO_once(&g_thread_local_init_once, thread_local_init);
+  if (g_thread_local_failed) {
+    destructor(value);
+    return 0;
+  }
+
+  void **pointers = pthread_getspecific(g_thread_local_key);
+  if (pointers == NULL) {
+    pointers = OPENSSL_malloc(sizeof(void *) * NUM_OPENSSL_THREAD_LOCALS);
+    if (pointers == NULL) {
+      destructor(value);
+      return 0;
+    }
+    memset(pointers, 0, sizeof(void *) * NUM_OPENSSL_THREAD_LOCALS);
+    if (pthread_setspecific(g_thread_local_key, pointers) != 0) {
+      OPENSSL_free(pointers);
+      destructor(value);
+      return 0;
+    }
+  }
+
+  if (pthread_mutex_lock(&g_destructors_lock) != 0) {
+    destructor(value);
+    return 0;
+  }
+  g_destructors[index] = destructor;
+  pthread_mutex_unlock(&g_destructors_lock);
+
+  pointers[index] = value;
+  return 1;
+}
+
+#endif  /* !OPENSSL_WINDOWS && !OPENSSL_NO_THREADS */