move from polarssl to mbedtls (#708)

[proxmark3-svn] / common / mbedtls / threading.h

diff --git a/common/mbedtls/threading.h b/common/mbedtls/threading.h
new file mode 100644 (file)
index 0000000..bd68d5a
--- /dev/null
+++ b/common/mbedtls/threading.h
@@ -0,0 +1,110 @@
+/**
+ * \file threading.h
+ *
+ * \brief Threading abstraction layer
+ */
+/*
+ *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
+ *  SPDX-License-Identifier: GPL-2.0
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ *  This file is part of mbed TLS (https://tls.mbed.org)
+ */
+#ifndef MBEDTLS_THREADING_H
+#define MBEDTLS_THREADING_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+#include "config.h"
+#else
+#include MBEDTLS_CONFIG_FILE
+#endif
+
+#include <stdlib.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define MBEDTLS_ERR_THREADING_FEATURE_UNAVAILABLE         -0x001A  /**< The selected feature is not available. */
+#define MBEDTLS_ERR_THREADING_BAD_INPUT_DATA              -0x001C  /**< Bad input parameters to function. */
+#define MBEDTLS_ERR_THREADING_MUTEX_ERROR                 -0x001E  /**< Locking / unlocking / free failed with error code. */
+
+#if defined(MBEDTLS_THREADING_PTHREAD)
+#include <pthread.h>
+typedef struct mbedtls_threading_mutex_t
+{
+    pthread_mutex_t mutex;
+    char is_valid;
+} mbedtls_threading_mutex_t;
+#endif
+
+#if defined(MBEDTLS_THREADING_ALT)
+/* You should define the mbedtls_threading_mutex_t type in your header */
+#include "threading_alt.h"
+
+/**
+ * \brief           Set your alternate threading implementation function
+ *                  pointers and initialize global mutexes. If used, this
+ *                  function must be called once in the main thread before any
+ *                  other mbed TLS function is called, and
+ *                  mbedtls_threading_free_alt() must be called once in the main
+ *                  thread after all other mbed TLS functions.
+ *
+ * \note            mutex_init() and mutex_free() don't return a status code.
+ *                  If mutex_init() fails, it should leave its argument (the
+ *                  mutex) in a state such that mutex_lock() will fail when
+ *                  called with this argument.
+ *
+ * \param mutex_init    the init function implementation
+ * \param mutex_free    the free function implementation
+ * \param mutex_lock    the lock function implementation
+ * \param mutex_unlock  the unlock function implementation
+ */
+void mbedtls_threading_set_alt( void (*mutex_init)( mbedtls_threading_mutex_t * ),
+                       void (*mutex_free)( mbedtls_threading_mutex_t * ),
+                       int (*mutex_lock)( mbedtls_threading_mutex_t * ),
+                       int (*mutex_unlock)( mbedtls_threading_mutex_t * ) );
+
+/**
+ * \brief               Free global mutexes.
+ */
+void mbedtls_threading_free_alt( void );
+#endif /* MBEDTLS_THREADING_ALT */
+
+#if defined(MBEDTLS_THREADING_C)
+/*
+ * The function pointers for mutex_init, mutex_free, mutex_ and mutex_unlock
+ *
+ * All these functions are expected to work or the result will be undefined.
+ */
+extern void (*mbedtls_mutex_init)( mbedtls_threading_mutex_t *mutex );
+extern void (*mbedtls_mutex_free)( mbedtls_threading_mutex_t *mutex );
+extern int (*mbedtls_mutex_lock)( mbedtls_threading_mutex_t *mutex );
+extern int (*mbedtls_mutex_unlock)( mbedtls_threading_mutex_t *mutex );
+
+/*
+ * Global mutexes
+ */
+#if defined(MBEDTLS_FS_IO)
+extern mbedtls_threading_mutex_t mbedtls_threading_readdir_mutex;
+#endif
+#endif /* MBEDTLS_THREADING_C */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* threading.h */