<pre code_snippet_id="1622396" snippet_file_name="blog_20160324_1_744516" name="code" class="cpp">遍歷目錄獲取整個目錄的占用空間: uint64_t dir_space(char *path) {int ret = 0;uint64_t space = 0;char cur_dir[PATH_MAX + 1] = {0};DIR *dir = NULL;struct dirent *ent = NULL;if (NULL == path){return 0;}dir = opendir(path);if (NULL == dir){return 0;}if (NULL == getcwd(cur_dir, PATH_MAX)){closedir(dir);return 0;}chdir(path);printf("current dir is %s\n", path);ent = readdir(dir);while (NULL != ent){if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0){space += 4096;goto GOON;}if (ent->d_type == DT_DIR){space += 4096;space += dir_space(ent->d_name);}else{struct stat st;lstat(ent->d_name, &st);space += st.st_size;}GOON:ent = readdir(dir);}chdir(cur_dir);closedir(dir);printf("out of dir %s\n", path);return space; }

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