Android platform adaptation(dxl)

2025-08-19 21:03:48 -07:00 · 2020-05-06 12:03:37 +02:00 · 2020-05-06 12:03:37 +02:00 · 78ee43c9c4
commit 78ee43c9c4
parent d118ba9e06
4 changed files with 715 additions and 0 deletions
--- a/client/android/jni_tools.c
+++ b/client/android/jni_tools.c
@ -0,0 +1,97 @@
+//
+// Created by DXL on 2017/9/1.
+//
+
+//including header
+#include <malloc.h>
+#include <jni_tools.h>
+#include "stdbool.h"
+
+//当前线程是否添加的标志位
+static bool g_IsAttach;
+
+//TODO 环境变量获取函数
+JNIEnv *getJniEnv() {
+    JNIEnv *currentThreadEnv;
+    g_IsAttach = false;
+    if ((*g_JavaVM)->GetEnv(g_JavaVM, (void **) &currentThreadEnv, JNI_VERSION_1_4) != JNI_OK) {
+        LOGE("Get Env Fail!");
+        if ((*g_JavaVM)->AttachCurrentThread(g_JavaVM, &currentThreadEnv, NULL) != JNI_OK) {
+            LOGE("Attach the current thread Fail!");
+            g_IsAttach = false;
+            return NULL;
+        } else {
+            g_IsAttach = true;
+            LOGE("Attach the current thread Success!");
+            return currentThreadEnv;
+        }
+    } else {
+        g_IsAttach = false;
+        //LOGE("Get Env Success!");
+        return currentThreadEnv;
+    }
+}
+
+//解绑线程env
+void deatchThread() {
+    if (g_IsAttach) {
+        LOGD("线程解绑成功!");
+        (*g_JavaVM)->DetachCurrentThread(g_JavaVM);
+    }
+}
+
+//TODO 命令行解析
+CMD *parse_command_line(const char *commandStr) {
+    //一个指针，指向传进来的命令字符串（const修饰的，我们需要复刻一份!）
+    CMD *cmd = (CMD *) malloc(sizeof(CMD));
+    if (!cmd) {
+        LOGD("申请空间失败!");
+        return NULL;
+    }
+    //拷贝字符串到堆空间!
+    char *pTmp = strdup(commandStr);
+    LOGD("拷贝参数字符串到临时堆!");
+    //返回的结果!先初始化为20个空间
+    int size = 20;
+    cmd->cmd = (char **) malloc(size * sizeof(char **));
+    if (cmd->cmd) {
+        LOGD("申请参数空间成功!");
+    } else {
+        LOGD("申请空间失败!");
+    }
+    //进行截取
+    char *pStr = strtok(pTmp, " ");
+    LOGD("第0次截取完成: %s", pStr);
+    //给结果数组进行下标为0的第一次初始化
+    cmd->cmd[0] = pStr;
+    //局部变量用于储存解析到的命令个数，下标移动为一
+    int count = 1;
+    //需要截取命令参数，以空格为限定符
+    for (; pStr != NULL; ++count) {
+        //如果容量不够，则扩容!
+        if (count == (size - 1)) {
+            size += 20;
+            cmd->cmd = (char **) realloc(cmd->cmd, size * sizeof(char **));
+            LOGD("超过初始容量，自动扩容!");
+        }
+        pStr = strtok(NULL, " ");
+        if (pStr) {
+            cmd->cmd[count] = pStr;
+            LOGD("第%d次截取完成: %s", count, pStr);
+        }
+    }
+    cmd->len = (count - 1);
+    LOGD("解析函数执行完成!");
+    return cmd;
+}
+
+//内存释放
+void free_command_line(CMD *cmd) {
+    //二级指针需要逐层释放!
+    LOGD("释放命令行字符串二级引用!");
+    free(cmd->cmd[0]);
+    LOGD("释放命令行一级引用!");
+    free(cmd->cmd);
+    LOGD("释放结构体内存");
+    free(cmd);
+}