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author | Wink Saville <wink@google.com> | 2010-05-29 13:00:38 -0700 |
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committer | Wink Saville <wink@google.com> | 2010-05-29 13:00:38 -0700 |
commit | d0332953cda33fb4f8e24ebff9c49159b69c43d6 (patch) | |
tree | 81612e8b12f590310aeb0ebf1da37b304eb7baa6 /src/google/protobuf/compiler/subprocess.h | |
parent | ede38fe9b9f93888e6e41afc7abb09525f44da95 (diff) | |
download | external_protobuf-d0332953cda33fb4f8e24ebff9c49159b69c43d6.zip external_protobuf-d0332953cda33fb4f8e24ebff9c49159b69c43d6.tar.gz external_protobuf-d0332953cda33fb4f8e24ebff9c49159b69c43d6.tar.bz2 |
Add protobuf 2.3.0 sources
This is the contents of protobuf-2.3.0.tar.bz2 from
http://code.google.com/p/protobuf/downloads/list.
Change-Id: Idfde09ce7ef5ac027b07ee83f2674fbbed5c30b2
Diffstat (limited to 'src/google/protobuf/compiler/subprocess.h')
-rw-r--r-- | src/google/protobuf/compiler/subprocess.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/src/google/protobuf/compiler/subprocess.h b/src/google/protobuf/compiler/subprocess.h new file mode 100644 index 0000000..f9e8ae8 --- /dev/null +++ b/src/google/protobuf/compiler/subprocess.h @@ -0,0 +1,107 @@ +// Protocol Buffers - Google's data interchange format +// Copyright 2008 Google Inc. All rights reserved. +// http://code.google.com/p/protobuf/ +// +// 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. + +// Author: kenton@google.com (Kenton Varda) + +#ifndef GOOGLE_PROTOBUF_COMPILER_SUBPROCESS_H__ +#define GOOGLE_PROTOBUF_COMPILER_SUBPROCESS_H__ + +#ifdef _WIN32 +#define WIN32_LEAN_AND_MEAN // right... +#include <windows.h> +#else // _WIN32 +#include <sys/types.h> +#include <unistd.h> +#endif // !_WIN32 + +#include <string> +#include <google/protobuf/stubs/common.h> + +namespace google { +namespace protobuf { + +class Message; + +namespace compiler { + +// Utility class for launching sub-processes. +class Subprocess { + public: + Subprocess(); + ~Subprocess(); + + enum SearchMode { + SEARCH_PATH, // Use PATH environment variable. + EXACT_NAME // Program is an exact file name; don't use the PATH. + }; + + // Start the subprocess. Currently we don't provide a way to specify + // arguments as protoc plugins don't have any. + void Start(const string& program, SearchMode search_mode); + + // Serialize the input message and pipe it to the subprocess's stdin, then + // close the pipe. Meanwhile, read from the subprocess's stdout and parse + // the data into *output. All this is done carefully to avoid deadlocks. + // Returns true if successful. On any sort of error, returns false and sets + // *error to a description of the problem. + bool Communicate(const Message& input, Message* output, string* error); + +#ifdef _WIN32 + // Given an error code, returns a human-readable error message. This is + // defined here so that CommandLineInterface can share it. + static string Subprocess::Win32ErrorMessage(DWORD error_code); +#endif + + private: +#ifdef _WIN32 + DWORD process_start_error_; + HANDLE child_handle_; + + // The file handles for our end of the child's pipes. We close each and + // set it to NULL when no longer needed. + HANDLE child_stdin_; + HANDLE child_stdout_; + +#else // _WIN32 + pid_t child_pid_; + + // The file descriptors for our end of the child's pipes. We close each and + // set it to -1 when no longer needed. + int child_stdin_; + int child_stdout_; + +#endif // !_WIN32 +}; + +} // namespace compiler +} // namespace protobuf + +} // namespace google +#endif // GOOGLE_PROTOBUF_COMPILER_SUBPROCESS_H__ |