1. httpserver组件库

使用/external/httpserver.h-master/src/CMakeLists.txt文件编译的开源库，二次封装接口给到应用层使用。

1.1. 注意事项

编译libhttpsrv时，可能会提示 ragel 工具未安装，需要安装 ragel 工具：

$ sudo apt install ragel

对开源库的CMakeLists.txt文件增加拷贝命令：

message("${PLATFORM_PATH}/cmake-shell/external${SUBMODULE_PATH_OF_IPC_SDK}/httpserver.h-master/src/libhttpsrv.a")
add_custom_command(
    TARGET httpsrv
    POST_BUILD
    COMMAND cp ${PLATFORM_PATH}/cmake-shell${SUBMODULE_PATH_OF_IPC_SDK}/external/httpserver.h-master/src/libhttpsrv.a ${EXTERNAL_LIBS_OUTPUT_PATH}
    WORKING_DIRECTORY ${PLATFORM_PATH}/cmake-shell/
)

取消开源库的CMakeLists.txt文件debug配置，未知会产生什么不良后果；

PUBLIC $<$<CONFIG:DEBUG>:-fsanitize=address -fsanitize=undefined -fno-sanitize-recover=all>

由于开源代码不支持安全退出，所以修改了开源代码；

int gHttpServerRuning = 1; // 增加一个运行标识
int hs_server_run_event_loop(http_server_t *serv, const char *ipaddr) {
  hs_server_listen_on_addr(serv, ipaddr);
  struct epoll_event ev_list[1];
  while (gHttpServerRuning) { // 运行标识赋值为0时，httpserver退出
    int nev = epoll_wait(serv->loop, ev_list, 1, -1);
    for (int i = 0; i < nev; i++) {
      ev_cb_t *ev_cb = (ev_cb_t *)ev_list[i].data.ptr;
      ev_cb->handler(&ev_list[i]);
    }
  }
  return 0;
}

修复一个内存安全漏洞；

void _hs_accept_and_begin_request_cycle(http_server_t *server,
                                        hs_io_cb_t on_client_connection_cb,
                                        hs_io_cb_t on_timer_event_cb) {
  http_request_t *request = NULL;
  while ((request = hs_server_accept_connection(server, on_client_connection_cb,
                                                on_timer_event_cb))) {
    if (server->memused > HTTP_MAX_TOTAL_EST_MEM_USAGE) {
      hs_request_respond_error(request, 503, "Service Unavailable",
                               hs_request_begin_write);
    } else {
      hs_request_begin_read(request);
    }
    // ================ added by xiao ================ //
    if (request) {
      hs_request_terminate_connection(request); // 此处应该释放内存
    }
    // ================ added by xiao end ================ //
  }
}

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1. httpserver组件库

1.1. 注意事项

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