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lx_fs: implement move()

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Fixes #3176
This commit is contained in:
Johannes Schlatow 2019-01-31 15:04:22 +01:00 committed by Christian Helmuth
parent 65a662f5b3
commit d9043057a2
2 changed files with 34 additions and 2 deletions
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9
repos/os/src/server/lx_fs/directory.h
View File

@ -24,6 +24,7 @@
#include <file.h>
#include <lx_util.h>
#include <stdio.h>
namespace Lx_fs {
@ -113,6 +114,14 @@ class Lx_fs::Directory : public Node
closedir(_fd);
}
void rename(Directory &dir_to, char const *name_from, char const *name_to)
{
int ret = renameat(dirfd(_fd), name_from,
dirfd(dir_to._fd), name_to);
if (ret != 0)
throw Unavailable();
}
/* FIXME returned file node must be locked */
File * file(char const *name, Mode mode, bool create) override
{

27
repos/os/src/server/lx_fs/main.cc
View File

@ -351,9 +351,32 @@ class Lx_fs::Session_component : public Session_rpc_object
}
}
void move(Dir_handle, Name const &, Dir_handle, Name const &) override
void move(Dir_handle dir_from, Name const & name_from,
Dir_handle dir_to, Name const & name_to) override
{
Genode::error(__func__, " not implemented");
typedef File_system::Open_node<Directory> Dir_node;
Directory *to = 0;
auto to_fn = [&] (Dir_node &dir_node) {
to = &dir_node.node();
};
try {
_open_node_registry.apply<Dir_node>(dir_to, to_fn);
} catch (Id_space<File_system::Node>::Unknown_id const &) {
throw Invalid_handle();
}
auto move_fn = [&] (Dir_node &dir_node) {
dir_node.node().rename(*to, name_from.string(), name_to.string());
};
try {
_open_node_registry.apply<Dir_node>(dir_from, move_fn);
} catch (Id_space<File_system::Node>::Unknown_id const &) {
throw Invalid_handle();
}
}
};