crashpad/util/win/process_info.h
Scott Graham 8ce88d8953 win x86: Grab bag of restructuring to get tests working on x86-on-x86
A few function implementations that were missing, various switches
for functions/functionality that didn't exist on XP, and far too long
figuring out what exactly was wrong with SYSTEM_PROCESS_INFORMATION
on x86 (the "alignment_for_x86" fields).

R=mark@chromium.org
BUG=crashpad:1, crashpad:50, chromium:531663

Review URL: https://codereview.chromium.org/1336823002 .
2015-09-16 12:42:20 -07:00

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3.5 KiB
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// Copyright 2015 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_UTIL_WIN_PROCESS_INFO_H_
#define CRASHPAD_UTIL_WIN_PROCESS_INFO_H_
#include <sys/types.h>
#include <windows.h>
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "util/misc/initialization_state_dcheck.h"
#include "util/win/address_types.h"
namespace crashpad {
//! \brief Gathers information about a process given its `HANDLE`. This consists
//! primarily of information stored in the Process Environment Block.
class ProcessInfo {
public:
//! \brief Contains information about a module loaded into a process.
struct Module {
Module();
~Module();
//! \brief The pathname used to load the module from disk.
std::wstring name;
//! \brief The base address of the loaded DLL.
WinVMAddress dll_base;
//! \brief The size of the module.
WinVMSize size;
//! \brief The module's timestamp.
time_t timestamp;
};
ProcessInfo();
~ProcessInfo();
//! \brief Initializes this object with information about the given
//! \a process.
//!
//! This method must be called successfully prior to calling any other
//! method in this class. This method may only be called once.
//!
//! \return `true` on success, `false` on failure with a message logged.
bool Initialize(HANDLE process);
//! \return `true` if the target process is a 64-bit process.
bool Is64Bit() const;
//! \return `true` if the target process is running on the Win32-on-Win64
//! subsystem.
bool IsWow64() const;
//! \return The target process's process ID.
pid_t ProcessID() const;
//! \return The target process's parent process ID.
pid_t ParentProcessID() const;
//! \return The command line from the target process's Process Environment
//! Block.
bool CommandLine(std::wstring* command_line) const;
//! \brief Retrieves the modules loaded into the target process.
//!
//! The modules are enumerated in initialization order as detailed in the
//! Process Environment Block. The main executable will always be the
//! first element.
bool Modules(std::vector<Module>* modules) const;
private:
template <class Traits>
friend bool GetProcessBasicInformation(HANDLE process,
bool is_wow64,
ProcessInfo* process_info,
WinVMAddress* peb_address);
template <class Traits>
friend bool ReadProcessData(HANDLE process,
WinVMAddress peb_address_vmaddr,
ProcessInfo* process_info);
pid_t process_id_;
pid_t inherited_from_process_id_;
std::wstring command_line_;
std::vector<Module> modules_;
bool is_64_bit_;
bool is_wow64_;
InitializationStateDcheck initialized_;
DISALLOW_COPY_AND_ASSIGN(ProcessInfo);
};
} // namespace crashpad
#endif // CRASHPAD_UTIL_WIN_PROCESS_INFO_H_