Add MinidumpExceptionWriter::InitializeFromSnapshot() and test

minidump/minidump_exception_writer.cc

 // 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.
 
 #include "minidump/minidump_exception_writer.h"
 
 #include <sys/types.h>
 
 #include "base/logging.h"
 #include "minidump/minidump_context_writer.h"
+#include "snapshot/exception_snapshot.h"
 #include "util/file/file_writer.h"
 
 namespace crashpad {
 
 MinidumpExceptionWriter::MinidumpExceptionWriter()
     : MinidumpStreamWriter(), exception_(), context_(nullptr) {
 }
 
 MinidumpExceptionWriter::~MinidumpExceptionWriter() {
 }
 
+void MinidumpExceptionWriter::InitializeFromSnapshot(
+    const ExceptionSnapshot* exception_snapshot,
+    const MinidumpThreadIDMap* thread_id_map) {
+  DCHECK_EQ(state(), kStateMutable);
+  DCHECK(!context_);
+
+  auto thread_id_it = thread_id_map->find(exception_snapshot->ThreadID());
+  DCHECK(thread_id_it != thread_id_map->end());
+  SetThreadID(thread_id_it->second);
+
+  SetExceptionCode(exception_snapshot->Exception());
+  SetExceptionFlags(exception_snapshot->ExceptionInfo());
+  SetExceptionAddress(exception_snapshot->ExceptionAddress());
+  SetExceptionInformation(exception_snapshot->Codes());
+
+  scoped_ptr<MinidumpContextWriter> context =
+      MinidumpContextWriter::CreateFromSnapshot(exception_snapshot->Context());
+  SetContext(context.Pass());
+}
+
 void MinidumpExceptionWriter::SetContext(
     scoped_ptr<MinidumpContextWriter> context) {
   DCHECK_EQ(state(), kStateMutable);
 
   context_ = context.Pass();
 }
 
 void MinidumpExceptionWriter::SetExceptionInformation(
     const std::vector<uint64_t>& exception_information) {
   DCHECK_EQ(state(), kStateMutable);
@@ skipping 47 matching lines @@
   DCHECK_EQ(state(), kStateWritable);
 
   return file_writer->Write(&exception_, sizeof(exception_));
 }
 
 MinidumpStreamType MinidumpExceptionWriter::StreamType() const {
   return kMinidumpStreamTypeException;
 }
 
 }  // namespace crashpad