Releasing the former Stadia file transfer tools

The tools allow efficient and fast synchronization of large directory trees from a Windows workstation to a Linux target machine. cdc_rsync* support efficient copy of files by using content-defined chunking (CDC) to identify chunks within files that can be reused. asset_stream_manager + cdc_fuse_fs support efficient streaming of a local directory to a remote virtual file system based on FUSE. It also employs CDC to identify and reuse unchanged data chunks.
2026-09-13 01:10:44 +03:00 · 2022-10-07 10:47:04 +02:00
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+/*
+ * Copyright 2022 Google LLC
+ *
+ * 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.
+ */
+
+#ifndef CDC_RSYNC_CDC_RSYNC_H_
+#define CDC_RSYNC_CDC_RSYNC_H_
+
+#ifdef COMPILING_DLL
+#define CDC_RSYNC_API __declspec(dllexport)
+#else
+#define CDC_RSYNC_API __declspec(dllimport)
+#endif
+
+namespace cdc_ft {
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct Options {
+  const char* ip = nullptr;
+  int port = 0;
+  bool delete_ = false;
+  bool recursive = false;
+  int verbosity = 0;
+  bool quiet = false;
+  bool whole_file = false;
+  bool relative = false;
+  bool compress = false;
+  bool checksum = false;
+  bool dry_run = false;
+  bool existing = false;
+  bool json = false;
+  const char* copy_dest = nullptr;
+  int compress_level = 6;
+  int connection_timeout_sec = 10;
+
+  // Compression level 0 is invalid.
+  static constexpr int kMinCompressLevel = -5;
+  static constexpr int kMaxCompressLevel = 22;
+};
+
+// Rule for including/excluding files.
+struct FilterRule {
+  enum class Type {
+    kInclude,
+    kExclude,
+  };
+
+  Type type;
+  const char* pattern;
+
+  FilterRule(Type type, const char* pattern) : type(type), pattern(pattern) {}
+};
+
+enum class ReturnCode {
+  // No error. Will match the tool's exit code, so OK must be 0.
+  kOk = 0,
+
+  // Generic error.
+  kGenericError = 1,
+
+  // Server connection timed out.
+  kConnectionTimeout = 2,
+
+  // Connection to the server was shut down unexpectedly.
+  kConnectionLost = 3,
+
+  // Binding to the forward port failed, probably because there's another
+  // instance of cdc_rsync running.
+  kAddressInUse = 4,
+
+  // Server deployment failed. This should be rare, it means that the server
+  // components were successfully copied, but the up-to-date check still fails.
+  kDeployFailed = 5,
+
+  // Gamelet selection asks for user input, but we are in quiet mode.
+  kInstancePickerNotAvailableInQuietMode = 6,
+};
+
+// Calling Sync() a second time overwrites the data in |error_message|.
+CDC_RSYNC_API ReturnCode Sync(const Options* options,
+                              const FilterRule* filter_rules,
+                              size_t filter_num_rules, const char* sources_dir,
+                              const char* const* sources, size_t num_sources,
+                              const char* destination,
+                              const char** error_message);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+}  // namespace cdc_ft
+
+#endif  // CDC_RSYNC_CDC_RSYNC_H_