add memheap testcase for ac6 Oz optimization.

examples/utest/testcases/Kconfig

@@ -8,6 +8,7 @@ config RT_USING_UTESTCASES
 if RT_USING_UTESTCASES
 
 source "$RTT_DIR/examples/utest/testcases/utest/Kconfig"
+source "$RTT_DIR/examples/utest/testcases/kernel/Kconfig"
 
 endif
 

examples/utest/testcases/kernel/Kconfig

@@ -0,0 +1,8 @@
+menu "Kernel Testcase"
+
+config UTEST_MEMHEAP_TC
+    bool "memheap stability test"
+    default y
+    depends on RT_USING_MEMHEAP
+
+endmenu

examples/utest/testcases/kernel/SConscript

@@ -0,0 +1,15 @@
+Import('rtconfig')
+from building import *
+
+cwd     = GetCurrentDir()
+src     = Split('''
+''')
+
+if GetDepend(['UTEST_MEMHEAP_TC']):
+    src += ['memheap_tc.c']
+
+CPPPATH = [cwd]
+
+group = DefineGroup('utestcases', src, depend = [], CPPPATH = CPPPATH)
+
+Return('group')

examples/utest/testcases/kernel/memheap_tc.c

@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2019-01-16     flybreak     the first version
+ */
+
+#include <rtthread.h>
+#include <stdlib.h>
+#include "utest.h"
+
+#define HEAP_SIZE        (64 * 1024)
+#define HEAP_ALIGN       (4)
+#define SLICE_NUM        (40)
+#define TEST_TIMES       (100000)
+#define HEAP_NAME        "heap1"
+#define SLICE_SIZE_MAX   (HEAP_SIZE/SLICE_NUM)
+
+static void memheap_test(void)
+{
+    struct rt_memheap heap1;
+    rt_uint32_t ptr_start;
+    void *ptr[SLICE_NUM];
+    int i, cnt = 0;
+
+    /* init heap */
+    ptr_start = (rt_uint32_t)rt_malloc_align(HEAP_SIZE, HEAP_ALIGN);
+    if (ptr_start == RT_NULL)
+    {
+        rt_kprintf("totle size too big,can not malloc memory!");
+        return;
+    }
+
+    rt_memheap_init(&heap1, HEAP_NAME, (void *)ptr_start, HEAP_SIZE);
+
+    /* test start */
+    for (i = 0; i < SLICE_NUM; i++)
+    {
+        ptr[i] = 0;
+    }
+    /* test alloc */
+    for (i = 0; i < SLICE_NUM; i++)
+    {
+        rt_uint32_t slice_size = rand() % SLICE_SIZE_MAX;
+        ptr[i] = rt_memheap_alloc(&heap1, slice_size);
+    }
+    /* test realloc */
+    while (cnt < TEST_TIMES)
+    {
+        rt_uint32_t slice_size = rand() % SLICE_SIZE_MAX;
+        rt_uint32_t ptr_index = rand() % SLICE_NUM;
+        rt_uint32_t operation = rand() % 2;
+
+        if (ptr[ptr_index])
+        {
+            if (operation == 0) /* free and malloc */
+            {
+                if (ptr[ptr_index])
+                {
+                    rt_memheap_free(ptr[ptr_index]);
+                }
+                ptr[ptr_index] = rt_memheap_alloc(&heap1, slice_size);
+            }
+            else /* realloc */
+            {
+                ptr[ptr_index] = rt_memheap_realloc(&heap1, ptr[ptr_index], slice_size);
+            }
+        }
+        cnt ++;
+        if (cnt % (TEST_TIMES / 10) == 0)
+        {
+            rt_kprintf(">");
+        }
+    }
+
+    rt_kprintf("test OK!\n");
+
+    /* test end */
+    rt_memheap_detach(&heap1);
+    rt_free_align((void *)ptr_start);
+}
+
+static rt_err_t utest_tc_init(void)
+{
+    return RT_EOK;
+}
+
+static rt_err_t utest_tc_cleanup(void)
+{
+    return RT_EOK;
+}
+
+static void testcase(void)
+{
+    UTEST_UNIT_RUN(memheap_test);
+}
+UTEST_TC_EXPORT(testcase, "testcases.kernel.memheap_tc", utest_tc_init, utest_tc_cleanup, 10);