内存与测试

applications/sql/DB_SQLite.c

@@ -189,6 +189,10 @@ void db_sqlite_init_full(void)
            if (g_db)
            {
                sqlite3_close(g_db);
+               //限制缓存大小 (100KB)
+               sqlite3_exec(g_db, "PRAGMA cache_size = -50;", 0, 0, 0);
+               //设置临时存储为文件模式 (节省内存)
+               sqlite3_exec(g_db, "PRAGMA temp_store = FILE;", 0, 0, 0);
                g_db = RT_NULL;
            }
            return; //
@@ -235,6 +239,10 @@ void db_sqlite_init_full(void)
     }else {
         if (sqlite3_open(DB_NAME, &g_db) == SQLITE_OK)
         {
+            //限制缓存大小 (100KB)
+            sqlite3_exec(g_db, "PRAGMA cache_size = -50;", 0, 0, 0);
+            //设置临时存储为文件模式 (节省内存)
+            sqlite3_exec(g_db, "PRAGMA temp_store = FILE;", 0, 0, 0);
             LOG_D("[DataBase] NAME (%s)",DB_NAME);
         }
     }
@@ -312,6 +320,10 @@ static void db_sqlite(void *parameter) {
                 return_disabled(&cmd);
                 continue;
             } else {
+                //限制缓存大小 (100KB)
+                sqlite3_exec(g_db, "PRAGMA cache_size = -50;", 0, 0, 0);
+                //设置临时存储为文件模式 (节省内存)
+                sqlite3_exec(g_db, "PRAGMA temp_store = FILE;", 0, 0, 0);
                 rt_kprintf("Opened database: %s\n", DB_NAME);
             }
         }
@@ -399,16 +411,28 @@ rt_err_t db_send_command(enum db_cmd_type type, const char* sql, rt_int32_t time
       return result;
 }
 
+extern struct rt_memheap sram_DTCMRAM;
+static struct rt_thread dat_sqlite_thread;
+static void *dat_sqlite_stack __attribute__((aligned(4)))= RT_NULL ;
 /* 线程 */
 void thread_DB_SQLite(void)
 {
-    rt_thread_t tid;
-    tid = rt_thread_create("db_sql", db_sqlite, RT_NULL, 1024 *16, 18, 10);
+    rt_err_t db_err;
+    dat_sqlite_stack = rt_memheap_alloc(&sram_DTCMRAM, 1024*16);
+    db_err = rt_thread_init(&dat_sqlite_thread, "db_sql", db_sqlite, RT_NULL,dat_sqlite_stack, 1024*16, 15, 10);
+    if(db_err != RT_EOK)
+    {
+        LOG_D("Failed to create SQLite thread!\n");
+    }
+    rt_thread_startup(&dat_sqlite_thread);
+
+   /* rt_thread_t tid;
+    tid = rt_thread_create("db_sql", db_sqlite, RT_NULL, 1024 *14, 18, 10);
 
     if (tid != RT_NULL)
     {
         rt_thread_startup(tid);
     }else{
         LOG_D("Failed to create SQLite thread!\n");
-    }
+    }*/
 }