Diff: mbed-client/nanostack-libservice/mbed-client-libservice/nsdynmemLIB.h

Revision:

0:f7c60d3e7b8a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-client/nanostack-libservice/mbed-client-libservice/nsdynmemLIB.h	Wed May 18 19:06:32 2016 +0000
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2014-2015 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.
+ */
+
+
+/**
+ * \file nsdynmemLIB.h
+ * \brief Dynamical Memory API for library model
+ *
+ */
+#ifndef NSDYNMEMLIB_H_
+#define NSDYNMEMLIB_H_
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "ns_types.h"
+
+/*!
+ * \enum heap_fail_t
+ * \brief Dynamically heap system failure call back event types.
+ */
+typedef enum {
+    NS_DYN_MEM_NULL_FREE,               /**< ns_dyn_mem_free(), NULL pointer free [obsolete - no longer faulted]  */
+    NS_DYN_MEM_DOUBLE_FREE,                     /**< ns_dyn_mem_free(), Possible double pointer free */
+    NS_DYN_MEM_ALLOCATE_SIZE_NOT_VALID, /**< Allocate size is 0 or smaller or size is bigger than max heap size  */
+    NS_DYN_MEM_POINTER_NOT_VALID,       /**< ns_dyn_mem_free(), try to free pointer which not at heap sector */
+    NS_DYN_MEM_HEAP_SECTOR_CORRUPTED,   /**< Heap system detect sector corruption */
+    NS_DYN_MEM_HEAP_SECTOR_UNITIALIZED /**< ns_dyn_mem_free(), ns_dyn_mem_temporary_alloc() or ns_dyn_mem_alloc() called before ns_dyn_mem_init() */
+} heap_fail_t;
+
+/**
+ * /struct mem_stat_t
+ * /brief Struct for Memory stats Buffer structure
+ */
+typedef struct mem_stat_t {
+    /*Heap stats*/
+    int16_t heap_sector_size;                   /**< Heap total Sector len. */
+    int16_t heap_sector_alloc_cnt;              /**< Reserved Heap sector cnt. */
+    int16_t heap_sector_allocated_bytes;        /**< Reserved Heap data in bytes. */
+    int16_t heap_sector_allocated_bytes_max;    /**< Reserved Heap data in bytes max value. */
+    uint32_t heap_alloc_total_bytes;            /**< Total Heap allocated bytes. */
+    uint32_t heap_alloc_fail_cnt;               /**< Counter for Heap allocation fail. */
+} mem_stat_t;
+
+/**
+  * \brief Init and set Dynamical heap pointer and length.
+  *
+  * \param heap_ptr Pointer to dynamically heap buffer
+  * \param heap_size size of the heap buffer
+  * \return None
+  */
+extern void ns_dyn_mem_init(uint8_t *heap, uint16_t h_size, void (*passed_fptr)(heap_fail_t), mem_stat_t *info_ptr);
+
+
+/**
+  * \brief Free allocated memory.
+  *
+  * \param heap_ptr Pointer to allocated memory
+  *
+  * \return 0, Free OK
+  * \return <0, Free Fail
+  */
+extern void ns_dyn_mem_free(void *heap_ptr);
+/**
+  * \brief Allocate temporary data.
+  *
+  * Space allocate started from beginning of the heap sector
+  *
+  * \param alloc_size Allocated data size
+  *
+  * \return 0, Allocate Fail
+  * \return >0, Pointer to allocated data sector.
+  */
+extern void *ns_dyn_mem_temporary_alloc(int16_t alloc_size);
+/**
+  * \brief Allocate long period data.
+  *
+  * Space allocate started from end of the heap sector
+  *
+  * \param alloc_size Allocated data size
+  *
+  * \return 0, Allocate Fail
+  * \return >0, Pointer to allocated data sector.
+  */
+extern void *ns_dyn_mem_alloc(int16_t alloc_size);
+#ifdef __cplusplus
+}
+#endif
+#endif /* NSDYNMEMLIB_H_ */
+