初始提交

common/lzma/7zAlloc.h

@@ -0,0 +1,78 @@
+/**
+ * \file memory_buffer_alloc.h
+ *
+ * \brief Buffer-based memory allocator
+ *
+ *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ *  This file is part of mbed TLS (https://tls.mbed.org)
+ */
+#ifndef MEMORY_BUFFER_ALLOC_H
+#define MEMORY_BUFFER_ALLOC_H
+
+#include <stddef.h>
+/**
+ * \name SECTION: Module settings
+ *
+ * The configuration options you can set for this module are in this section.
+ * Either change them in config.h or define them on the compiler command line.
+ * \{
+ */
+
+#define MBEDTLS_MEMORY_ALIGN_MULTIPLE       4 /**< Align on multiples of this value */
+
+/* \} name SECTION: Module settings */
+
+#define MBEDTLS_MEMORY_VERIFY_NONE         0
+#define MBEDTLS_MEMORY_VERIFY_ALLOC        (1 << 0)
+#define MBEDTLS_MEMORY_VERIFY_FREE         (1 << 1)
+#define MBEDTLS_MEMORY_VERIFY_ALWAYS       (MBEDTLS_MEMORY_VERIFY_ALLOC | MBEDTLS_MEMORY_VERIFY_FREE)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief   Initialize use of stack-based memory allocator.
+ *          The stack-based allocator does memory management inside the
+ *          presented buffer and does not call calloc() and free().
+ *          It sets the global mbedtls_calloc() and mbedtls_free() pointers
+ *          to its own functions.
+ *          (Provided mbedtls_calloc() and mbedtls_free() are thread-safe if
+ *           MBEDTLS_THREADING_C is defined)
+ *
+ * \note    This code is not optimized and provides a straight-forward
+ *          implementation of a stack-based memory allocator.
+ *
+ * \param buf   buffer to use as heap
+ * \param len   size of the buffer
+ */
+void memory_buffer_alloc_init( unsigned char *buf, size_t len );
+
+/**
+ * \brief   Free the mutex for thread-safety and clear remaining memory
+ */
+void memory_buffer_alloc_free( void );
+
+void *buffer_alloc_malloc(size_t size);
+
+void buffer_alloc_free( void *ptr );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* memory_buffer_alloc.h */