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Diffstat (limited to 'src/google/protobuf/stubs/status.h')
-rw-r--r-- | src/google/protobuf/stubs/status.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/src/google/protobuf/stubs/status.h b/src/google/protobuf/stubs/status.h new file mode 100644 index 00000000..614ab994 --- /dev/null +++ b/src/google/protobuf/stubs/status.h @@ -0,0 +1,116 @@ +// Protocol Buffers - Google's data interchange format +// Copyright 2008 Google Inc. All rights reserved. +// https://developers.google.com/protocol-buffers/ +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +#ifndef GOOGLE_PROTOBUF_STUBS_STATUS_H_ +#define GOOGLE_PROTOBUF_STUBS_STATUS_H_ + +#include <iosfwd> +#include <string> + +#include <google/protobuf/stubs/common.h> +#include <google/protobuf/stubs/stringpiece.h> + +namespace google { +namespace protobuf { +namespace util { +namespace error { +// These values must match error codes defined in google/rpc/code.proto. +enum Code { + OK = 0, + CANCELLED = 1, + UNKNOWN = 2, + INVALID_ARGUMENT = 3, + DEADLINE_EXCEEDED = 4, + NOT_FOUND = 5, + ALREADY_EXISTS = 6, + PERMISSION_DENIED = 7, + UNAUTHENTICATED = 16, + RESOURCE_EXHAUSTED = 8, + FAILED_PRECONDITION = 9, + ABORTED = 10, + OUT_OF_RANGE = 11, + UNIMPLEMENTED = 12, + INTERNAL = 13, + UNAVAILABLE = 14, + DATA_LOSS = 15, +}; +} // namespace error + +class LIBPROTOBUF_EXPORT Status { + public: + // Creates a "successful" status. + Status(); + + // Create a status in the canonical error space with the specified + // code, and error message. If "code == 0", error_message is + // ignored and a Status object identical to Status::OK is + // constructed. + Status(error::Code error_code, StringPiece error_message); + Status(const Status&); + Status& operator=(const Status& x); + ~Status() {} + + // Some pre-defined Status objects + static const Status OK; // Identical to 0-arg constructor + static const Status CANCELLED; + static const Status UNKNOWN; + + // Accessor + bool ok() const { + return error_code_ == error::OK; + } + int error_code() const { + return error_code_; + } + StringPiece error_message() const { + return error_message_; + } + + bool operator==(const Status& x) const; + bool operator!=(const Status& x) const { + return !operator==(x); + } + + // Return a combination of the error code name and message. + string ToString() const; + + private: + error::Code error_code_; + string error_message_; +}; + +// Prints a human-readable representation of 'x' to 'os'. +LIBPROTOBUF_EXPORT ostream& operator<<(ostream& os, const Status& x); + +#define EXPECT_OK(value) EXPECT_TRUE((value).ok()) + +} // namespace util +} // namespace protobuf +} // namespace google +#endif // GOOGLE_PROTOBUF_STUBS_STATUS_H_ |