crashpad/minidump/minidump_file_writer.h
Mark Mentovai 6d2d31d2d1 Use base/macros.h instead of base/basictypes.h
This was done in Chromium’s local copy of Crashpad in 562827afb599. This
change is similar to that one, except more care was taken to avoid
including headers from a .cc or _test.cc when already included by the
associated .h. Rather than using <stddef.h> for size_t, Crashpad has
always used <sys/types.h>, so that’s used here as well.

This updates mini_chromium to 8a2363f486e3a0dc562a68884832d06d28d38dcc,
which removes base/basictypes.h.

e128dcf10122 Remove base/move.h; use std::move() instead of Pass()
8a2363f486e3 Move basictypes.h to macros.h

R=avi@chromium.org

Review URL: https://codereview.chromium.org/1566713002 .
2016-01-06 12:22:50 -05:00

125 lines
4.6 KiB
C++

// 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_FILE_WRITER_H_
#define CRASHPAD_MINIDUMP_MINIDUMP_FILE_WRITER_H_
#include <windows.h>
#include <dbghelp.h>
#include <sys/types.h>
#include <set>
#include <vector>
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "minidump/minidump_extensions.h"
#include "minidump/minidump_stream_writer.h"
#include "minidump/minidump_writable.h"
#include "util/file/file_io.h"
#include "util/stdlib/pointer_container.h"
namespace crashpad {
class ProcessSnapshot;
//! \brief The root-level object in a minidump file.
//!
//! This object writes a MINIDUMP_HEADER and list of MINIDUMP_DIRECTORY entries
//! to a minidump file.
class MinidumpFileWriter final : public internal::MinidumpWritable {
public:
MinidumpFileWriter();
~MinidumpFileWriter() override;
//! \brief Initializes the MinidumpFileWriter and populates it with
//! appropriate child streams based on \a process_snapshot.
//!
//! This method will add additional streams to the minidump file as children
//! of the MinidumpFileWriter object and as pointees of the top-level
//! MINIDUMP_DIRECTORY. To do so, it will obtain other snapshot information
//! from \a process_snapshot, such as a SystemSnapshot, lists of
//! ThreadSnapshot and ModuleSnapshot objects, and, if available, an
//! ExceptionSnapshot.
//!
//! The streams are added in the order that they are expected to be most
//! useful to minidump readers, to improve data locality and minimize seeking.
//! The streams are added in this order:
//! - kMinidumpStreamTypeSystemInfo
//! - kMinidumpStreamTypeMiscInfo
//! - kMinidumpStreamTypeThreadList
//! - kMinidumpStreamTypeException (if present)
//! - kMinidumpStreamTypeModuleList
//! - kMinidumpStreamTypeCrashpadInfo (if present)
//! - kMinidumpStreamTypeMemoryList
//!
//! \param[in] process_snapshot The process snapshot to use as source data.
//!
//! \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 ProcessSnapshot* process_snapshot);
//! \brief Sets MINIDUMP_HEADER::Timestamp.
//!
//! \note Valid in #kStateMutable.
void SetTimestamp(time_t timestamp);
//! \brief Adds a stream to the minidump file and arranges for a
//! MINIDUMP_DIRECTORY entry to point to it.
//!
//! This object takes ownership of \a stream and becomes its parent in the
//! overall tree of internal::MinidumpWritable objects.
//!
//! At most one object of each stream type (as obtained from
//! internal::MinidumpStreamWriter::StreamType()) may be added to a
//! MinidumpFileWriter object. It is an error to attempt to add multiple
//! streams with the same stream type.
//!
//! \note Valid in #kStateMutable.
void AddStream(scoped_ptr<internal::MinidumpStreamWriter> stream);
// MinidumpWritable:
//! \copydoc internal::MinidumpWritable::WriteEverything()
//!
//! This method does not initially write the final value for
//! MINIDUMP_HEADER::Signature. After all child objects have been written, it
//! rewinds to the beginning of the file and writes the correct value for this
//! field. This prevents incompletely-written minidump files from being
//! mistaken for valid ones.
bool WriteEverything(FileWriterInterface* file_writer) override;
protected:
// MinidumpWritable:
bool Freeze() override;
size_t SizeOfObject() override;
std::vector<MinidumpWritable*> Children() override;
bool WillWriteAtOffsetImpl(FileOffset offset) override;
bool WriteObject(FileWriterInterface* file_writer) override;
private:
MINIDUMP_HEADER header_;
PointerVector<internal::MinidumpStreamWriter> streams_;
// Protects against multiple streams with the same ID being added.
std::set<MinidumpStreamType> stream_types_;
DISALLOW_COPY_AND_ASSIGN(MinidumpFileWriter);
};
} // namespace crashpad
#endif // CRASHPAD_MINIDUMP_MINIDUMP_WRITER_H_