Add MinidumpExceptionWriter::InitializeFromSnapshot() and test

minidump/minidump_exception_writer.h

 // Copyright 2014 The Crashpad Authors. All rights reserved.
 //
 // 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 CRASHPAD_MINIDUMP_MINIDUMP_EXCEPTION_WRITER_H_
 #define CRASHPAD_MINIDUMP_MINIDUMP_EXCEPTION_WRITER_H_
 
 #include <dbghelp.h>
 #include <stdint.h>
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "minidump/minidump_stream_writer.h"
+#include "minidump/minidump_thread_id_map.h"
 
 namespace crashpad {
 
+class ExceptionSnapshot;
 class MinidumpContextWriter;
 
 //! \brief The writer for a MINIDUMP_EXCEPTION_STREAM stream in a minidump file.
 class MinidumpExceptionWriter final : public internal::MinidumpStreamWriter {
  public:
   MinidumpExceptionWriter();
   ~MinidumpExceptionWriter() override;
 
+  //! \brief Initializes the MINIDUMP_EXCEPTION_STREAM based on \a
+  //!     exception_snapshot.
+  //!
+  //! \param[in] exception_snapshot The exception snapshot to use as source
+  //!     data.
+  //! \param[in] thread_id_map A MinidumpThreadIDMap to be consulted to
+  //!     determine the 32-bit minidump thread ID to use for the thread
+  //!     identified by \a exception_snapshot.
+  //!
+  //! \note Valid in #kStateMutable. No mutator methods may be called before
+  //!     this method, and it is not normally necessary to call any mutator
+  //!     methods after this method.
+  void InitializeFromSnapshot(const ExceptionSnapshot* exception_snapshot,
+                              const MinidumpThreadIDMap* thread_id_map);
+
   //! \brief Arranges for MINIDUMP_EXCEPTION_STREAM::ThreadContext to point to
   //!     the CPU context to be written by \a context.
   //!
   //! A context is required in all MINIDUMP_EXCEPTION_STREAM objects.
   //!
   //! This object takes ownership of \a context and becomes its parent in the
   //! overall tree of internal::MinidumpWritable objects.
   //!
   //! \note Valid in #kStateMutable.
   void SetContext(scoped_ptr<MinidumpContextWriter> context);
@@ skipping 50 matching lines @@
  private:
   MINIDUMP_EXCEPTION_STREAM exception_;
   scoped_ptr<MinidumpContextWriter> context_;
 
   DISALLOW_COPY_AND_ASSIGN(MinidumpExceptionWriter);
 };
 
 }  // namespace crashpad
 
 #endif  // CRASHPAD_MINIDUMP_MINIDUMP_EXCEPTION_WRITER_H_