// Copyright 2015 gRPC authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

syntax = "proto3";

package lws_vfs;

service LwsVfs {
  // Sends a greeting
  rpc SayHello(HelloRequest) returns (HelloReply) {}

  rpc fgetattr(getattr) returns (getattr) {}
  rpc fsetxattr(setxattr) returns (setxattr) {}
  rpc faccess(access) returns (access) {}
  rpc freaddir(readdir) returns (readdir) {}
  rpc fread(read) returns (read) {}
  rpc fopen(open) returns (open) {}
  rpc fwrite(write) returns (write) {}
  rpc fgetxattr(getxattr) returns (getxattr) {}
  rpc ftruncate(truncate) returns (truncate) {}
  rpc futimens(utimens) returns (utimens) {}
  rpc fchown(chown) returns (chown) {}
  rpc frelease(release) returns (release) {}
  rpc fmkdir(mkdir) returns (mkdir) {}
}

// The request message containing the user's name.
message HelloRequest { string name = 1; }

// The response message containing the greetings
message HelloReply { string message = 1; }

message file_info {
  int32 flags = 1;
  uint32 fh_old = 2;
  bool direct_io = 3;
  uint64 fh = 10;
  uint64 lock_owner = 11;
}

message fstat {
  uint64 fst_mode = 1;
  uint64 fst_ino = 2;
  uint64 fst_dev = 3;
  uint64 fst_rdev = 4;
  uint64 fst_nlink = 5;
  uint64 fst_uid = 6;
  uint64 fst_gid = 7;
  uint64 fst_size = 8;
  uint64 fst_atime = 9;
  uint64 fst_mtime = 10;
  uint64 fst_ctime = 11;
  uint64 fst_blksize = 12;
  uint64 fst_blocks = 13;
}

// fuse api function message define:
message getattr {
  string path = 1;
  fstat stat = 2;
  int32 ret = 15;
}

message setxattr {
  string path = 1;
  string name = 2;
  bytes value = 3;
  int64 size = 4;
  uint32 flags = 5;
  int32 ret = 15;
}
message getxattr {
  string path = 1;
  string name = 2;
  bytes value = 3;
  int64 size = 4;
  int32 ret = 15;
}

message access {
  string path = 1;
  uint32 mask = 2;
  int32 ret = 15;
}

message readdir {
  string path = 1;
  repeated string dirs = 2;
  uint32 offset = 3;
  file_info fi = 4;
  int32 ret = 15;
}

message open {
  string path = 1;
  file_info fi = 2;
  int32 ret = 15;
}

message read {
  string path = 1;
  bytes buff = 2;
  int64 size = 3;
  int64 offset = 4;
  file_info fi = 5;
  int32 ret = 15;
}

message write {
  string path = 1;
  bytes buff = 2;
  int64 size = 3;
  int64 offset = 4;
  file_info fi = 5;
  int32 ret = 15;
}

message truncate {
  string path = 1;
  int64 size = 3;
  int32 ret = 15;
}

message timespec {
  int32 tv_sec = 1;
  int64 tv_nsec = 2;
}
message utimens {
  string path = 1;
  repeated timespec ts = 2; // const struct timespec ts[2]
  int32 ret = 15;
}

message chown {
  string path = 1;
  int32 uid = 2;
  int32 gid = 3;
  int32 ret = 15;
}

message release {
  string path = 1;
  file_info fi = 2;
  int32 ret = 15;
}

message mkdir {
  string path = 1;
  file_info fi = 2;
  uint32 mode = 3;
  int32 ret = 15;
}