Merge branch 'RT-Thread:master' into hal

1 files changed, 166 insertions, 0 deletions

diff --git a/components/utilities/var_export/var_export_cmd.c b/components/utilities/var_export/var_export_cmd.c
new file mode 100644
index 0000000000..fba3cc92bb
--- /dev/null
+++ b/components/utilities/var_export/var_export_cmd.c
@@ -0,0 +1,166 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2021-06-05     WillianChan  first version
+ */
+
+#include <var_export.h>
+
+static int ve_cmd_help(int argc, char **argv);
+static int ve_find_module(int argc, char **argv);
+static int ve_find_value(int argc, char **argv);
+
+
+struct ve_cmd_des
+{
+    const char *cmd;
+    int (*fun)(int argc, char **argv);
+};
+
+/* dcm cmd table */
+static const struct ve_cmd_des cmd_tab[] =
+{
+    {"module", ve_find_module},
+    {"value", ve_find_value},
+};
+
+static int ve_cmd_help(int argc, char **argv)
+{
+    rt_kprintf("Usage:\n");
+    rt_kprintf("ve_find module <module>                - Find by module name\n");
+    rt_kprintf("ve_find value  <module> <identifier>   - Find accurately\n");
+
+    return RT_EOK;
+}
+
+rt_inline void ve_object_split(int len)
+{
+    while (len--) rt_kprintf("-");
+}
+
+static int ve_find_module(int argc, char **argv)
+{
+    ve_iterator_t iter;
+    const ve_exporter_t *exporter;
+    ve_module_t module;
+    int maxlen = (RT_NAME_MAX * 2);
+    const char *item_title = "ve_module";
+
+    rt_kprintf("%-*.s identifier       value\n", maxlen, item_title); ve_object_split(maxlen);
+    rt_kprintf(" ---------------- -----\n");
+
+    if (!ve_module_init(&module, argv[2]))
+    {
+        ve_iter_init(&module, &iter);
+    }
+    else
+    {
+        return -RT_ERROR;
+    }
+
+    while (1)
+    {
+        exporter = ve_iter_next(&iter);
+        if (exporter == RT_NULL)
+        {
+            return -RT_ERROR;
+        }
+        else
+        {
+            rt_kprintf("%-*.s %-*.s %d\n",
+                       maxlen, exporter->module,
+                       maxlen, exporter->identifier,
+                       exporter->value);
+        }
+    }
+}
+
+static int ve_find_value(int argc, char **argv)
+{
+    ve_iterator_t iter;
+    const ve_exporter_t *exporter;
+    ve_module_t module;
+    int maxlen = (RT_NAME_MAX * 2);
+    const char *item_title = "ve_module";
+
+    rt_kprintf("%-*.s identifier       value\n", maxlen, item_title); ve_object_split(maxlen);
+    rt_kprintf(" ---------------- -----\n");
+
+    if (!ve_module_init(&module, argv[2]))
+    {
+        ve_iter_init(&module, &iter);
+    }
+    else
+    {
+        return -RT_ERROR;
+    }
+
+    while (1)
+    {
+        exporter = ve_iter_next(&iter);
+        if (exporter == RT_NULL)
+        {
+            return -RT_ERROR;
+        }
+        else
+        {
+            if (!rt_strcmp(exporter->identifier, argv[3]))
+            {
+                rt_kprintf("%-*.s %-*.s %d\n",
+                           maxlen, exporter->module,
+                           maxlen, exporter->identifier,
+                           exporter->value);
+
+                return RT_EOK;
+            }
+        }
+    }
+}
+
+static int ve_find(int argc, char **argv)
+{
+    int i, resule = RT_EOK;
+    const struct ve_cmd_des *run_cmd = RT_NULL;
+
+    if (argc == 1)
+    {
+        ve_cmd_help(argc, argv);
+        return RT_EOK;
+    }
+
+    /* find command function */
+    for (i = 0; i < sizeof(cmd_tab) / sizeof(cmd_tab[0]); i++)
+    {
+        if (rt_strcmp(cmd_tab[i].cmd, argv[1]) == 0)
+        {
+            run_cmd = &cmd_tab[i];
+            break;
+        }
+    }
+
+    /* not find command function, print help information */
+    if (run_cmd == RT_NULL)
+    {
+        rt_kprintf("There is no command option named %s.\n", argv[1]);
+        ve_cmd_help(argc, argv);
+        return RT_EOK;
+    }
+
+    /* run command function */
+    if (run_cmd->fun != RT_NULL)
+    {
+        resule = run_cmd->fun(argc, argv);
+    }
+
+    if (resule)
+    {
+        ve_cmd_help(argc, argv);
+    }
+
+    return RT_EOK;
+}
+MSH_CMD_EXPORT(ve_find, find the specified export variable);