qing
15f8c9552d
原 list 把 check()（命令字符串）放进 status 字段，前端误当状态显示， 命令列取不存在的 command 字段导致显示为空。 修复：list 返回 running(bool) + command(string)，前端对应显示状态与命令。
134 lines
2.8 KiB
C++
134 lines
2.8 KiB
C++
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#include <boost/json.hpp>
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#include <boost/property_tree/ptree.hpp>
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#include <boost/property_tree/json_parser.hpp>
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#include "main/PPool.hh"
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#include "main/pmc_mtd.hh"
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namespace qing {
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/* -------- 用于存放子进程的进程池 -------- */
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static PPool ppool;
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/*-------------------------------------------------------------------------*/
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/* --------【pmc method子进程操作】集合 -------- */
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namespace pmc_mtd {
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/*
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* 列举出所有子进程。
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*
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* {
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* "pipe": "<int>",
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* "type": "list",
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* } */
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auto list() -> std::string {
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boost::json::array processes;
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/* 遍历子进程池
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*
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* FIXME: 子进程池的迭代器完成后，改为使用for-in迭代 */
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//ppool.clr() /* 保留已经跑完的进程，因为可能会涉及到输出的提取 *?
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for (int i = 0; i < ppool.size(); ++i) {
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processes.push_back({ /* 向json中推入对象 */
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{"index", i},
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{"pid", ppool[i].pid()},
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{"running", ppool[i].isRunning()},
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{"command", ppool[i].check()}
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});
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}
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/* 返回序列化的json对象 */
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return boost::json::serialize(processes);
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}
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/*
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* 删除一个子进程，需要提供pid
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*
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* {
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* "pipe": "<integer>",
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* "type": "kill",
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* "kill": <integer>
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* } */
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auto kill(const int pid) -> bool {
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/* 遍历子进程池对比pid */
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for (int i=0; i<ppool.size(); ++i)
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if ( ppool[i].pid() == pid) { /* 寻找目标进程 */
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ppool.kill(i); /* 杀死该进程 */
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return true; } /* 成功返回逻辑真 */
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/* 失败（没找到）返回逻辑假 */
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return false;
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}
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/*
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* 启动一个子进程
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*
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* {
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* "pipe": "<integer>",
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* "type": "exec",
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* "exec": "<commandline>"
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* } */
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auto exec(const std::string& cmd) -> bool try
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{
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//ppool.clr(); /* 保留跑完的子进程 */
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ppool.crtp(cmd);
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return true; /* 成功返回逻辑真 */
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}
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/* 如果出现任何异常，返回假 */
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catch(std::exception& exp) {
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return false;
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}
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/* 解析自启动列表、添加自启动项
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*
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* 如果在解析过程中出错，只是打印异常？ */
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void parse_self_init_list(std::string &path)
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try {
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std::ifstream file(path);
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if (!file.is_open()) { /* ---- 没能打开自启动文件 ---- */
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std::cerr << "Failed to open self-init list" << std::endl;
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return;
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}
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std::string row = "";
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char ch;
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while (file.get(ch))
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if (ch == '\n') {
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auto pos = row.find("#");
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if (pos != -1)
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row = row.substr(0, pos);
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if (row != "") { /* trim() */
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ppool.clr();
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ppool.crtp(row); /* 创建进程 */
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row = "";
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}
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}
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else row += ch;
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file.close();
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}
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catch (std::exception &exp) {
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std::cerr << "Exception at: parse_self_init_list()" << std::endl;
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std::cerr << "Exception type: " << typeid(exp).name() << std::endl;
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std::cerr << "Exception info: " << exp.what() << std::endl;
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}
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}
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}
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