syntax = "proto2";

package dittosuiteproto;

enum Order {
  SEQUENTIAL = 0;
  RANDOM = 1;
}

enum Reseeding {
  ONCE = 0;
  EACH_ROUND_OF_CYCLES = 1;
  EACH_CYCLE = 2;
}

enum AccessMode {
  READ_ONLY = 1;
  WRITE_ONLY = 2;
  READ_WRITE = 3;
}

message OpenFile {
  oneof file {
    string path_name = 1;
    string input = 2;
  }
  optional string output_fd = 3;
  optional bool create = 4 [default = true];
  optional bool direct_io = 5 [default = false];
  optional AccessMode access_mode = 6 [default = READ_WRITE];
}

message DeleteFile {
  oneof file {
    string path_name = 1;
    string input = 2;
  }
}

message CloseFile {
  required string input_fd = 1;
}

message ResizeFile {
  required string input_fd = 1;
  required int64 size = 2;
}

message ResizeFileRandom {
  required string input_fd = 1;
  required int64 min = 2;
  required int64 max = 3;
  optional uint32 seed = 4;
  optional Reseeding reseeding = 5 [default = ONCE];
}

message WriteFile {
  required string input_fd = 1;
  optional int64 size = 2 [default = -1];
  optional int64 block_size = 3 [default = 4096];
  optional int64 starting_offset = 4 [default = 0];
  optional Order access_order = 5 [default = SEQUENTIAL];
  optional uint32 seed = 6;
  optional bool fsync = 7 [default = false];
  optional Reseeding reseeding = 8 [default = ONCE];
}

message ReadFile {
  enum ReadFAdvise {
    AUTOMATIC = 0;
    NORMAL = 1;
    SEQUENTIAL = 2;
    RANDOM = 3;
  }
  required string input_fd = 1;
  optional int64 size = 2 [default = -1];
  optional int64 block_size = 3 [default = 4096];
  optional int64 starting_offset = 4 [default = 0];
  optional Order access_order = 5 [default = SEQUENTIAL];
  optional uint32 seed = 6;
  optional ReadFAdvise fadvise = 7 [default = AUTOMATIC];
  optional Reseeding reseeding = 8 [default = ONCE];
}

message ReadDirectory {
  required string directory_name = 1;
  required string output = 2;
}

message Thread {
  required Instruction instruction = 1;
  optional int32 spawn = 2 [default = 1];
}

message Multithreading {
  repeated Thread threads = 1;
}

message InvalidateCache {}

message Instruction {
  optional int32 repeat = 1 [default = 1];
  oneof instruction_oneof {
    InstructionSet instruction_set = 2;
    OpenFile open_file = 3;
    DeleteFile delete_file = 4;
    CloseFile close_file = 5;
    ResizeFile resize_file = 6;
    WriteFile write_file = 7;
    ReadFile read_file = 8;
    ReadDirectory read_directory = 9;
    ResizeFileRandom resize_file_random = 10;
    Multithreading multithreading = 11;
    InvalidateCache invalidate_cache = 12;
  }
}

message InstructionSet {
  repeated Instruction instructions = 1;
  optional InstructionSetIterate iterate_options = 2;
}

message InstructionSetIterate {
  required string list_name = 1;
  required string item_name = 2;
  optional Order access_order = 3 [default = SEQUENTIAL];
  optional Reseeding reseeding = 4 [default = ONCE];
  optional uint32 seed = 5;
}

message Global {
  optional string absolute_path = 1 [default = ""];
}

message Benchmark {
  optional Instruction init = 1;
  required Instruction main = 2;
  optional Instruction clean_up = 3;
  required Global global = 4;
}