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statvfs support

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git-svn-id: https://profuse.googlecode.com/svn/branches/v2@354 aa027e90-d47c-11dd-86d7-074df07e0730
This commit is contained in:
ksherlock 2011-02-27 02:23:03 +00:00
parent efd5e7bd98
commit 5930e28f54
1 changed files with 38 additions and 2 deletions
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40
bin/fuse_pascal_ops.cpp
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@ -13,8 +13,11 @@
#include <cstdio>
#include <cstring>
#include <sys/stat.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/statvfs.h>
#include <fuse/fuse_opt.h>
@ -75,6 +78,11 @@ static FileEntryPointer findChild(VolumeEntry *volume, unsigned inode)
return FileEntryPointer();
}
#pragma mark -
#pragma mark fs
static void pascal_init(void *userdata, struct fuse_conn_info *conn)
{
DEBUGNAME()
@ -101,6 +109,34 @@ static void pascal_destroy(void *userdata)
}
static void pascal_statfs(fuse_req_t req, fuse_ino_t ino)
{
DEBUGNAME()
struct statvfs vst;
VolumeEntry *volume = (VolumeEntry *)fuse_req_userdata(req);
ERROR(!volume, EIO)
// returns statvfs for the mount path or any file in the fs
// therefore, ignore ino.
std::memset(&vst, 0, sizeof(vst));
vst.f_bsize = 512; // fs block size
vst.f_frsize = 512; // fundamental fs block size
vst.f_blocks = volume->volumeBlocks();
vst.f_bfree = volume->freeBlocks(true); // free blocks
vst.f_bavail = volume->freeBlocks(false); // free blocks (non-root)
vst.f_files = volume->fileCount();
vst.f_ffree = -1; // free inodes.
vst.f_favail = -1; // free inodes (non-root)
vst.f_fsid = 0; // file system id?
vst.f_flag = volume->readOnly() ? ST_RDONLY | ST_NOSUID : ST_NOSUID;
vst.f_namemax = 15;
fuse_reply_statfs(req, &vst);
}
#pragma mark -
#pragma mark xattr
@ -485,7 +521,6 @@ static void pascal_read(fuse_req_t req, fuse_ino_t ino, size_t size, off_t off,
}
void init_ops(fuse_lowlevel_ops *ops)
{
DEBUGNAME()
@ -494,6 +529,7 @@ void init_ops(fuse_lowlevel_ops *ops)
ops->init = pascal_init;
ops->destroy = pascal_destroy;
ops->statfs = pascal_statfs;
// returns pascal.filekind, text encoding.
ops->listxattr = pascal_listxattr;