win32 文件夹遍历获取每个文件夹大小

Posted 2022-12-16 fulianzhou

#include <stdint.h>
#include <list>
#include <windows.h>
using namespace std;

#define MAX_PATH_LEN (8192)
#define G_UNIT (1024*1024*1024)
#define M_UNIT (1024*1024)
#define K_UNIT (1024)

char* BytesExchange(uint64_t bytes)

    static char str[256] =  0 ;
    if (bytes >= G_UNIT)
    
        sprintf_s(str, sizeof(str), "%.2fG", bytes*1.0 / G_UNIT);
    
    else if (bytes >= M_UNIT)
    
        sprintf_s(str, sizeof(str), "%.2fM", bytes*1.0 / M_UNIT);
    
    else if (bytes >= K_UNIT)
    
        sprintf_s(str, sizeof(str), "%.2fK", bytes*1.0 / K_UNIT);
    
    else
    
        sprintf_s(str, sizeof(str), "%dbytes", bytes);
    

    return str;


uint64_t TraverFolder(const char* dirname)

    uint64_t TotalSize = 0;
    list<string> dirlist;
    dirlist.push_back(dirname);
    while (!dirlist.empty())
    
        string dirstr = dirlist.front();
        dirlist.pop_front();

        char findName[MAX_PATH_LEN] =  0 ;
        strcpy(findName, dirstr.c_str());
        strcat(findName, "\\\\*");
        uint64_t DirSize = 0;

        WIN32_FIND_DATAA wfd;
        HANDLE hFind = FindFirstFileA(findName, &wfd);
        while (hFind && INVALID_HANDLE_VALUE != hFind)
        
            if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
            
                if (strcmp(wfd.cFileName, ".") != 0 &&
                    strcmp(wfd.cFileName, "..") != 0)
                
                    char FolderName[MAX_PATH_LEN] =  0 ;
                    sprintf_s(FolderName, sizeof(FolderName), "%s\\\\%s", dirstr.c_str(), wfd.cFileName);
                    dirlist.push_back(std::string(FolderName));
                
            
            else
            
                uint64_t FileSize = (uint64_t)wfd.nFileSizeHigh << 32 | (uint32_t)wfd.nFileSizeLow;
                DirSize += FileSize;
            

            if (!FindNextFileA(hFind, &wfd))
            
                break;
            
        

        //printf(" %s(%d) (%s)\\n", dirstr.c_str(), dirstack.size(), BytesExchange(DirSize));
        TotalSize += DirSize;
    
    return TotalSize;



int main(int argc, char* argv[])

    char dirName[] = "C:\\\\Windows";
    char findName[MAX_PATH_LEN] =  0 ;
    strcpy(findName, dirName);
    strcat(findName, "\\\\*");
    uint64_t DirSize = 0;

    WIN32_FIND_DATAA wfd;
    HANDLE hFind = FindFirstFileA(findName, &wfd);
    
    while (hFind && hFind != INVALID_HANDLE_VALUE)
    
        if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
        
            if (strcmp(wfd.cFileName, ".") != 0 &&
                strcmp(wfd.cFileName, "..") != 0)
            
                char FolderName[MAX_PATH_LEN] =  0 ;
                sprintf_s(FolderName, sizeof(FolderName), "%s\\\\%s", dirName, wfd.cFileName);

                uint64_t TotalSize = TraverFolder(FolderName);
                printf("%s (%s)\\n", FolderName, BytesExchange(TotalSize));
            
        

        if (!FindNextFileA(hFind, &wfd))
        
            break;
        
    

    return 0;