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The current kernel version needs these functions to be there (it will crash

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if not).


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@7894 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2004-06-11 00:47:52 +00:00
parent 7bdd1a7874
commit 15190e07b3
1 changed files with 49 additions and 3 deletions
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52
src/add-ons/kernel/file_systems/bfs/kernel_interface.cpp
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@ -306,6 +306,52 @@ bfs_remove_vnode(void *_ns, void *_node, bool reenter)
}
static status_t
bfs_can_page(fs_volume _fs, fs_vnode _v)
{
return 0;
}
static ssize_t
bfs_read_pages(fs_volume _fs, fs_vnode _node, iovecs *vecs, off_t pos)
{
Inode *inode = (Inode *)_node;
if (!inode->HasUserAccessableStream())
RETURN_ERROR(B_BAD_VALUE);
ReadLocked locked(inode->Lock());
for (uint32 i = 0; i < vecs->num; i++) {
if (pos >= inode->Size()) {
memset(vecs->vec[i].iov_base, 0, vecs->vec[i].iov_len);
pos += vecs->vec[i].iov_len;
} else {
uint32 length = vecs->vec[i].iov_len;
if (length > inode->Size() - pos)
length = inode->Size() - pos;
inode->ReadAt(pos, (uint8 *)vecs->vec[i].iov_base, &length);
if (length < vecs->vec[i].iov_len)
memset((char *)vecs->vec[i].iov_base + length, 0, vecs->vec[i].iov_len - length);
pos += vecs->vec[i].iov_len;
}
}
return B_OK;
}
static ssize_t
bfs_write_pages(fs_volume _fs, fs_vnode _v, iovecs *vecs, off_t pos)
{
return EPERM;
}
// #pragma mark -
@ -1952,9 +1998,9 @@ static file_system_info sBeFileSystem = {
&bfs_remove_vnode, // remove_vnode
/* VM file access */
NULL,
NULL,
NULL,
&bfs_can_page,
&bfs_read_pages,
&bfs_write_pages,
&bfs_ioctl, // ioctl
&bfs_fsync, // sync