TCP 的逻辑实现，可以和客户端连接发送数据

2026-03-04 10:29:20 +08:00
parent f32d91c424
commit f45b571162
16 changed files with 14027 additions and 2 deletions
--- a/src/menu.c
+++ b/src/menu.c
@@ -0,0 +1,164 @@
+#include "menu.h"
+#include <stdio.h>
+#include <string.h>
+ 
+/* 简单的静态菜单树：
+ *
+ *  层级 0:  [运行界面]  [定值设置]  [查看数据]
+ *                     │            │
+ *  层级 1:        (子菜单...)   (子菜单...)
+ */
+
+static MenuItem g_menuRun;
+static MenuItem g_menuSet;
+static MenuItem g_menuSee;
+static MenuItem g_menuSet1;
+static MenuItem g_menuSet2;
+
+void Menu_InitPC(MenuCtrl *ctrl)
+{
+    memset(&g_menuRun, 0, sizeof(g_menuRun));
+    memset(&g_menuSet, 0, sizeof(g_menuSet));
+    memset(&g_menuSee, 0, sizeof(g_menuSee));
+    memset(&g_menuSet1, 0, sizeof(g_menuSet1));
+    memset(&g_menuSet2, 0, sizeof(g_menuSet2));
+
+    /* 0 级菜单 */
+    g_menuRun.name  = "运行界面";
+    g_menuRun.tip   = "显示运行状态";
+    g_menuRun.level = 0;
+    g_menuRun.pos   = 0;
+
+    g_menuSet.name  = "定值设置";
+    g_menuSet.tip   = "进入定值设置菜单";
+    g_menuSet.level = 0;
+    g_menuSet.pos   = 1;
+
+    g_menuSee.name  = "查看数据";
+    g_menuSee.tip   = "查看测量值和记录";
+    g_menuSee.level = 0;
+    g_menuSee.pos   = 2;
+
+    /* 0 级链表关系 */
+    g_menuRun.before = &g_menuSee;
+    g_menuRun.behind = &g_menuSet;
+
+    g_menuSet.before = &g_menuRun;
+    g_menuSet.behind = &g_menuSee;
+
+    g_menuSee.before = &g_menuSet;
+    g_menuSee.behind = &g_menuRun;
+
+    /* 1 级菜单：定值设置下的两个子菜单 */
+    g_menuSet1.name   = "保护定值";
+    g_menuSet1.tip    = "编辑保护定值";
+    g_menuSet1.level  = 1;
+    g_menuSet1.pos    = 0;
+    g_menuSet1.higher = &g_menuSet;
+
+    g_menuSet2.name   = "通信参数";
+    g_menuSet2.tip    = "编辑通信参数";
+    g_menuSet2.level  = 1;
+    g_menuSet2.pos    = 1;
+    g_menuSet2.higher = &g_menuSet;
+
+    g_menuSet1.before = &g_menuSet2;
+    g_menuSet1.behind = &g_menuSet2;
+
+    g_menuSet2.before = &g_menuSet1;
+    g_menuSet2.behind = &g_menuSet1;
+
+    g_menuSet.lower   = &g_menuSet1;
+
+    /* 初始化控制结构 */
+    ctrl->head0   = &g_menuRun;
+    ctrl->current = &g_menuRun;
+}
+
+/* 控制台绘制当前菜单状态 */
+static void Menu_Draw(const MenuCtrl *ctrl)
+{
+    const MenuItem *cur = ctrl->current;
+    const MenuItem *p;
+
+    printf("\n==== PC HMI 菜单模拟 ====\n");
+    printf("使用 W/S/A/D/Enter/Esc 操作，Ctrl+C 退出。\n\n");
+
+    /* 显示 0 级菜单 */
+    printf("[0级菜单]: ");
+    p = ctrl->head0;
+    if (!p) {
+        printf("(空)\n");
+        return;
+    }
+    const MenuItem *start = p;
+    do {
+        if (p == cur)
+            printf(" [*%s*] ", p->name);
+        else
+            printf("  %s  ", p->name);
+        p = p->behind;
+    } while (p && p != start);
+    printf("\n");
+
+    /* 若当前有下级，则显示 1 级菜单 */
+    if (cur->lower) {
+        printf("  子菜单:\n");
+        p = cur->lower;
+        start = p;
+        do {
+            printf("    - %s\n", p->name);
+            p = p->behind;
+        } while (p && p != start);
+    }
+
+    /* 提示信息 */
+    printf("\n提示: %s\n", cur->tip ? cur->tip : "");
+}
+
+void Menu_LoopStep(MenuCtrl *ctrl, int key)
+{
+    MenuItem *cur = ctrl->current;
+
+    switch (key) {
+    case KEY_U:
+        if (cur->before)
+            cur = cur->before;
+        break;
+    case KEY_D:
+        if (cur->behind)
+            cur = cur->behind;
+        break;
+    case KEY_L:
+        if (cur->higher)
+            cur = cur->higher;
+        break;
+    case KEY_R:
+    case KEY_ENT:
+        if (cur->lower)
+            cur = cur->lower;
+        printf("\n>>> 进入 [%s] 功能(模拟用户层)...\n", cur->name);
+        break;
+    case KEY_ESC:
+        if (cur->higher)
+            cur = cur->higher;
+        break;
+    default:
+        break;
+    }
+
+    ctrl->current = cur;
+    Menu_Draw(ctrl);
+}
+
+int Menu_MapKey(int ch)
+{
+    if (ch == 'w' || ch == 'W') return KEY_U;
+    if (ch == 's' || ch == 'S') return KEY_D;
+    if (ch == 'a' || ch == 'A') return KEY_L;
+    if (ch == 'd' || ch == 'D') return KEY_R;
+    if (ch == '\r' || ch == '\n') return KEY_ENT;
+    if (ch == 27) return KEY_ESC; /* ESC */
+    return KEY_NONE;
+}
+