From 34157e19dafeee732d3f7ac8c60526444cf6c815 Mon Sep 17 00:00:00 2001 From: tang1219 Date: Tue, 16 Jun 2026 14:07:40 +0800 Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96usb=E5=A4=96=E8=AE=BE?= =?UTF-8?q?=E6=8F=92=E5=85=A5=E6=97=B6=E9=87=8D=E5=A4=8D=E8=A7=A6=E5=8F=91?= =?UTF-8?q?=E7=9A=84=E9=97=AE=E9=A2=98?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- opt/ktouch/src/usb_ds.c | 48 ++++++++++++++++++++++++----------------- 1 file changed, 28 insertions(+), 20 deletions(-) diff --git a/opt/ktouch/src/usb_ds.c b/opt/ktouch/src/usb_ds.c index f690e87..c25a520 100644 --- a/opt/ktouch/src/usb_ds.c +++ b/opt/ktouch/src/usb_ds.c @@ -16,6 +16,7 @@ #define DEFAULT_POLL_INTERVAL 5 // 默认轮询间隔为5秒 #define MAX_RETRY_ATTEMPTS 3 // 最大重试次数 #define RETRY_DELAY 1 // 重试延迟(秒) +#define COOLDOWN_SECONDS 30 // 触摸屏检测冷却时间(秒) FILE *log_file = NULL; // 日志文件指针 // 函数提前声明 @@ -213,6 +214,7 @@ void monitor_usb_devices(const char *control_file_path, int poll_interval) { printf("按Ctrl+C退出\n\n"); // 主循环，监控设备事件 + time_t last_trigger_time = 0; // 上次触发控制文件的时间 while (keep_running) { fd_set fds; struct timeval tv; @@ -292,28 +294,34 @@ void monitor_usb_devices(const char *control_file_path, int poll_interval) { } } - // 一轮检测完成后，如果需要更新控制文件状态 + // 一轮检测完成后，如果需要更新控制文件状态（带冷却时间防重复触发） if (use_control_file && touchscreen_detected) { - if (write_file_content_with_retry(control_file_path, 1) == 0) { - log_message("已更新控制文件状态为1\n"); - - // 等待文件状态恢复为0 - printf("等待控制文件状态恢复为0...\n"); - while (keep_running) { - int current_status = read_file_content_with_retry(control_file_path); - if (current_status == 0) { - printf("控制文件状态已恢复为0，继续监控\n"); - break; - } else if (current_status == -1) { - printf("读取控制文件失败，等待%d秒后重试\n", poll_interval); - sleep(poll_interval); - } else { - printf("当前控制文件状态: %d，等待%d秒后检查\n", current_status, poll_interval); - sleep(poll_interval); - } - } + time_t now = time(NULL); + if (difftime(now, last_trigger_time) < COOLDOWN_SECONDS) { + log_message("冷却中，跳过本次触发（距上次 %.0f 秒）\n", difftime(now, last_trigger_time)); } else { - log_message("更新控制文件状态失败\n"); + if (write_file_content_with_retry(control_file_path, 1) == 0) { + last_trigger_time = time(NULL); + log_message("已更新控制文件状态为1\n"); + + // 等待文件状态恢复为0 + printf("等待控制文件状态恢复为0...\n"); + while (keep_running) { + int current_status = read_file_content_with_retry(control_file_path); + if (current_status == 0) { + printf("控制文件状态已恢复为0，继续监控\n"); + break; + } else if (current_status == -1) { + printf("读取控制文件失败，等待%d秒后重试\n", poll_interval); + sleep(poll_interval); + } else { + printf("当前控制文件状态: %d，等待%d秒后检查\n", current_status, poll_interval); + sleep(poll_interval); + } + } + } else { + log_message("更新控制文件状态失败\n"); + } } } }