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vfs: add modification time member to directory_service

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Issue #1784.
This commit is contained in:
Josef Söntgen
2019-03-20 15:01:34 +01:00
committed by Christian Helmuth
parent 400039e1b6
commit 9a82bbb54d
7 changed files with 117 additions and 1 deletions
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48
repos/os/src/lib/vfs/fs_file_system.h
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@ -225,6 +225,35 @@ class Vfs::Fs_file_system : public File_system
return result;
}
bool update_modification_timestamp(Vfs::Timestamp time)
{
::File_system::Session::Tx::Source &source = *_fs.tx();
using ::File_system::Packet_descriptor;
if (!source.ready_to_submit()) {
Genode::error(__func__, ":", __LINE__, " Insufficient_buffer");
return false;
}
try {
Packet_descriptor p(source.alloc_packet(0),
file_handle(),
Packet_descriptor::WRITE_TIMESTAMP,
::File_system::Timestamp { .value = time.value });
/* pass packet to server side */
source.submit_packet(p);
} catch (::File_system::Session::Tx::Source::Packet_alloc_failed) {
Genode::error(__func__, ":", __LINE__, " Insufficient_buffer");
return false;
} catch (...) {
Genode::error("unhandled exception");
return false;
}
return true;
}
};
struct Fs_vfs_file_handle : Fs_vfs_handle
@ -517,6 +546,10 @@ class Vfs::Fs_file_system : public File_system
case Packet_descriptor::CONTENT_CHANGED:
/* previously handled */
break;
case Packet_descriptor::WRITE_TIMESTAMP:
/* previously handled */
break;
}
};
@ -535,6 +568,11 @@ class Vfs::Fs_file_system : public File_system
Lock::Guard guard(_lock);
source.release_packet(packet);
}
if (packet.operation() == Packet_descriptor::WRITE_TIMESTAMP) {
Lock::Guard guard(_lock);
source.release_packet(packet);
}
}
}
@ -621,6 +659,7 @@ class Vfs::Fs_file_system : public File_system
out.gid = 0;
out.inode = status.inode;
out.device = (Genode::addr_t)this;
out.modification_time.value = status.modification_time.value;
return STAT_OK;
}
@ -1011,6 +1050,15 @@ class Vfs::Fs_file_system : public File_system
return handle->complete_sync();
}
bool update_modification_timestamp(Vfs_handle *vfs_handle, Vfs::Timestamp time) override
{
Lock::Guard guard(_lock);
Fs_vfs_handle *handle = static_cast<Fs_vfs_handle *>(vfs_handle);
return handle->update_modification_timestamp(time);
}
};
#endif /* _INCLUDE__VFS__FS_FILE_SYSTEM_H_ */