https://dwt.life/category/deep-learning/ 深度学习 https://dwt.life/archives/345/ 2024-10-10T23:04:19+08:00 创建目录 zipdll代码：unzip.gopackage main /* #include <stdlib.h> // 定义回调类型 typedef void (*Callback)(const char*); // 将 call_callback 声明为 static static void call_callback(void (*cb)(const char*), const char* message) { if (cb != NULL) { cb(message); } } */ import "C" import ( "fmt" "io" "os" "path/filepath" "github.com/bodgit/sevenzip" ) // 计算 7z 文件的总大小 func calculate7zTotalSize(reader *sevenzip.Reader) int64 { var totalSize int64 for _, file := range reader.File { totalSize += int64(file.UncompressedSize) } return totalSize } // 解压 7z 文件并调用回调 //export Unzip7zWithCallback func Unzip7zWithCallback(archivePath *C.char, destDir *C.char, cb C.Callback) { goArchivePath := C.GoString(archivePath) goDestDir := C.GoString(destDir) // 打开 7z 文件 file, err := os.Open(goArchivePath) if err != nil { C.call_callback(cb, C.CString("Failed to open 7z file")) return } defer file.Close() // 获取文件信息 fileInfo, err := file.Stat() if err != nil { C.call_callback(cb, C.CString("Failed to get file info")) return } // 创建 7z 读取器 reader, err := sevenzip.NewReader(file, fileInfo.Size()) if err != nil { C.call_callback(cb, C.CString("Failed to create 7z reader")) return } // 计算总大小以跟踪进度 totalSize := calculate7zTotalSize(reader) if totalSize == 0 { C.call_callback(cb, C.CString("Empty 7z file")) return } var processedSize int64 progressStep := totalSize / 200 // 0.5% 对应的字节数 nextProgressTrigger := progressStep // 解压文件 for _, file := range reader.File { path := filepath.Join(goDestDir, file.Name) // 检查是否是目录 if file.FileHeader.FileInfo().IsDir() { os.MkdirAll(path, 0755) continue } // 创建解压目标文件 if err := os.MkdirAll(filepath.Dir(path), 0755); err != nil { C.call_callback(cb, C.CString(fmt.Sprintf("Failed to create directory: %s", err.Error()))) return } destFile, err := os.Create(path) if err != nil { C.call_callback(cb, C.CString(fmt.Sprintf("Failed to create file: %s", err.Error()))) return } defer destFile.Close() // 打开 7z 内部文件 rc, err := file.Open() if err != nil { C.call_callback(cb, C.CString(fmt.Sprintf("Failed to open entry in 7z: %s", err.Error()))) return } defer rc.Close() // 复制文件并更新进度 buffer := make([]byte, 1024*64) // 每次读取 64KB for { n, err := rc.Read(buffer) if err != nil && err != io.EOF { C.call_callback(cb, C.CString(fmt.Sprintf("Failed to read file: %s", err.Error()))) return } if n == 0 { break } if _, err := destFile.Write(buffer[:n]); err != nil { C.call_callback(cb, C.CString(fmt.Sprintf("Failed to write file: %s", err.Error()))) return } // 更新处理的字节数 processedSize += int64(n) // 每 0.5% 调用一次回调 if processedSize >= nextProgressTrigger { progress := float64(processedSize) / float64(totalSize) * 100 C.call_callback(cb, C.CString(fmt.Sprintf("Progress: %.2f%%", progress))) nextProgressTrigger += progressStep } } } C.call_callback(cb, C.CString("7z extraction completed successfully")) } func main() {}目录下执行 go mod initgo mod tidy编译：GOOS=windows GOARCH=amd64 go build -o unzip7z_64.dll -buildmode=c-shared unzip.goGOOS=windows GOARCH=386 go build -o unzip7z_32.dll -buildmode=c-shared unzip.go https://dwt.life/archives/338/ 2024-03-03T01:40:11+08:00 该篇教程主要讲解设置hdparm让硬盘自动休眠，如果你打算用arm设备作为Linux备份机Tip：该教程只适用相关系统硬盘不能自动休眠或无休眠设置项，设置需要按实际情况设置。查看是否已安装hdparm#hdparm安装hdparm# sudo apt-get install hdparm 查看硬盘是否支持写入缓存，有* (星号)，表示支持# sudo hdparm -I /dev/sda | grep 'Write cache' 让硬盘进入待机模式# hdparm -y /dev/sda1 让硬盘进入睡眠模式# hdparm -Y /dev/sda1 设置定时休眠# 5分钟无操作休眠（参数是5的倍数，比如60*5是300秒也就是5分钟） hdparm -S 60 /dev/sda1 修改hdparm配置# ls /dev/disk/by-id查看你的硬盘IDsudo vim /etc/hdparm.conf /dev/disk/by-id/ata-TOSHIBA_MD04ABA400V_2818KRSKFMYB { apm = 127 spindown_time = 60 write_cache = on }然后执行sudo /usr/lib/pm-utils/power.d/95hdparm-apm resume或者重启在5分没使用硬盘的情况下, 硬盘会自动休眠了ps :/dev/disk/by-id/* 自己去看下这个目录下自己的文件名spindown_time 60 计算参考 0 = disabled 1..240 = multiples of 5 seconds (5 seconds to 20 minutes) 241..251 = 1..11 x 30 mins 252 = 21 mins 253 = vendor defined (8..12 hours) 254 = reserved 255 = 21 mins + 15 secs write_cache 写缓存自己决定是否要开启,可以使用off不支持apm的需要设置 force_spindown_time 看文档说的是除了spindown以外参数都正常https://blog.csdn.net/lovefengchenlove/article/details/129468283https://www.cnblogs.com/HGNET/p/17077365.html https://dwt.life/archives/128/ 2021-08-22T13:55:00+08:00 [ ] a[x] a https://dwt.life/archives/120/ 2021-08-11T10:37:07+08:00 基于P2P与CDN融合之DHT算法研究.pdf https://dwt.life/archives/109/ 2021-08-11T10:35:00+08:00 1002-137X-2020-3-287.pdf