DragonOS-Community/DragonOS
4
1
Fork 0
mirror of https://github.com/DragonOS-Community/DragonOS.git synced 2025-06-18 12:16:31 +00:00
Code Issues Releases Wiki Activity

新加结构体POSIXSTATFS与SuperBlock用于处理statfs系统调用 (#667)

Browse Source 
* 新加结构体POSIXSTATFS与SuperBlock用于处理statfs系统调用
This commit is contained in:
TTaq
2024-03-26 18:28:26 +08:00
committed by GitHub
parent 0cb807346c
commit 597ecc08c2
17 changed files with 384 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

41
user/apps/test_fstatfs/main.c Normal file
View File

@ -0,0 +1,41 @@
#include <sys/statfs.h>
#include <stdio.h>
#include <fcntl.h>
int main(int argc,char **argv)
{
int fd = open("/bin/about.elf", O_RDONLY);
if (fd == -1)
return 0;
printf("fd = %d\n", fd);
struct statfs diskInfo;
fstatfs(fd, &diskInfo);
unsigned long long blocksize1 = diskInfo.f_bsize; //每个block里包含的字节数
unsigned long long totalsize = blocksize1 * diskInfo.f_blocks;//总的字节数，f_blocks为block的数目
printf("Total_size=%llu B =%llu KB =%llu MB = %llu GB\n",
totalsize,totalsize>>10,totalsize>>20, totalsize>>30);
/* 2.获取一下剩余空间和可用空间的大小 */
unsigned long long freeDisk = diskInfo.f_bfree * blocksize1; //剩余空间的大小
unsigned long long availableDisk = diskInfo.f_bavail * blocksize1; //可用空间大小
printf("Disk_free=%llu MB =%llu GB Disk_available=%llu MB = %llu GB\n",
freeDisk>>20,freeDisk>>30,availableDisk>>20, availableDisk>>30);
printf("====================\n");
printf("diskInfo address: %p\n", diskInfo);
printf("f_type= %lu\n", diskInfo.f_type);
printf("f_bsize = %lu\n", diskInfo.f_bsize);
printf("f_blocks = %d\n", diskInfo.f_blocks);
printf("f_bfree = %lu\n", diskInfo.f_bfree);
printf("b_avail = %d\n", diskInfo.f_bavail);
printf("f_files = %d\n", diskInfo.f_files);
printf("f_ffree = %lu\n", diskInfo.f_ffree);
printf("f_fsid = %ld\n", diskInfo.f_fsid);
printf("f_namelen = %ld\n", diskInfo.f_namelen);
printf("f_frsize = %ld\n", diskInfo.f_frsize);
printf("f_flags = %ld\n", diskInfo.f_flags);
return 0;
}