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-rw-r--r--examples/kernel/memp_simple.c135
1 files changed, 135 insertions, 0 deletions
diff --git a/examples/kernel/memp_simple.c b/examples/kernel/memp_simple.c
new file mode 100644
index 0000000000..705fde3c68
--- /dev/null
+++ b/examples/kernel/memp_simple.c
@@ -0,0 +1,135 @@
+/*
+ * 程序清单:内存池例程
+ *
+ * 这个程序会创建2个动态线程,一个静态的内存池对象,它们会试图分别从内存池中获得
+ * 内存块
+ */
+#include <rtthread.h>
+#include "tc_comm.h"
+
+static rt_uint8_t *ptr[48];
+static rt_uint8_t mempool[4096];
+static struct rt_mempool mp;
+
+/* 指向线程控制块的指针 */
+static rt_thread_t tid1 = RT_NULL;
+static rt_thread_t tid2 = RT_NULL;
+
+/* 线程1入口 */
+static void thread1_entry(void* parameter)
+{
+ int i;
+ char *block;
+
+ while(1)
+ {
+ for (i = 0; i < 48; i++)
+
+ {
+ rt_kprintf("allocate No.%d\n", i);
+ ptr[i] = rt_mp_alloc(&mp, RT_WAITING_FOREVER);
+ }
+
+ block = rt_mp_alloc(&mp, RT_WAITING_FOREVER);
+ rt_kprintf("allocate the block mem\n");
+ rt_mp_free(block);
+ block = RT_NULL;
+ }
+}
+
+/* 线程2入口 */
+static void thread2_entry(void *parameter)
+{
+ int i;
+
+ while(1)
+ {
+ rt_kprintf("try to release block\n");
+
+ for (i = 0 ; i < 48; i ++)
+ {
+ if (ptr[i] != RT_NULL)
+ {
+ rt_kprintf("release block %d\n", i);
+
+ rt_mp_free(ptr[i]);
+
+ ptr[i] = RT_NULL;
+
+ }
+ }
+
+ // rt_thread_delay(100);
+ }
+}
+
+int mempool_simple_init()
+{
+ int i;
+ for (i = 0; i < 48; i ++) ptr[i] = RT_NULL;
+
+ rt_mp_init(&mp, "mp1", &mempool[0], sizeof(mempool), 80);
+
+ /* 创建线程1 */
+ tid1 = rt_thread_create("t1",
+ thread1_entry, RT_NULL, /* 线程入口是thread1_entry, 入口参数是RT_NULL */
+ THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
+ if (tid1 != RT_NULL)
+ rt_thread_startup(tid1);
+ else
+ tc_stat(TC_STAT_END | TC_STAT_FAILED);
+
+ /* 创建线程2 */
+ tid2 = rt_thread_create("t2",
+ thread2_entry, RT_NULL, /* 线程入口是thread2_entry, 入口参数是RT_NULL */
+ THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
+ if (tid2 != RT_NULL)
+ rt_thread_startup(tid2);
+ else
+ tc_stat(TC_STAT_END | TC_STAT_FAILED);
+
+ return 0;
+}
+
+#ifdef RT_USING_TC
+static void _tc_cleanup()
+{
+ /* 调度器上锁,上锁后,将不再切换到其他线程,仅响应中断 */
+ rt_enter_critical();
+
+ /* 删除线程 */
+ if (tid1 != RT_NULL && tid1->stat != RT_THREAD_CLOSE)
+ rt_thread_delete(tid1);
+ if (tid2 != RT_NULL && tid2->stat != RT_THREAD_CLOSE)
+ rt_thread_delete(tid2);
+
+ /* 执行内存池脱离 */
+ rt_mp_detach(&mp);
+
+ /* 调度器解锁 */
+ rt_exit_critical();
+
+ /* 设置TestCase状态 */
+ tc_done(TC_STAT_PASSED);
+}
+
+int _tc_mempool_simple()
+{
+ /* 设置TestCase清理回调函数 */
+ tc_cleanup(_tc_cleanup);
+ mempool_simple_init();
+
+ /* 返回TestCase运行的最长时间 */
+ return 100;
+}
+/* 输出函数命令到finsh shell中 */
+FINSH_FUNCTION_EXPORT(_tc_mempool_simple, a memory pool example);
+#else
+/* 用户应用入口 */
+int rt_application_init()
+{
+ mempool_simple_init();
+
+ return 0;
+}
+#endif