1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/security/sandbox/chromium/base/logging_win.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,80 @@
1.4 +// Copyright (c) 2012 The Chromium Authors. All rights reserved.
1.5 +// Use of this source code is governed by a BSD-style license that can be
1.6 +// found in the LICENSE file.
1.7 +
1.8 +#ifndef BASE_LOGGING_WIN_H_
1.9 +#define BASE_LOGGING_WIN_H_
1.10 +
1.11 +#include <string>
1.12 +
1.13 +#include "base/base_export.h"
1.14 +#include "base/basictypes.h"
1.15 +#include "base/win/event_trace_provider.h"
1.16 +#include "base/logging.h"
1.17 +
1.18 +template <typename Type>
1.19 +struct StaticMemorySingletonTraits;
1.20 +
1.21 +namespace logging {
1.22 +
1.23 +// Event ID for the log messages we generate.
1.24 +EXTERN_C BASE_EXPORT const GUID kLogEventId;
1.25 +
1.26 +// Feature enable mask for LogEventProvider.
1.27 +enum LogEnableMask {
1.28 + // If this bit is set in our provider enable mask, we will include
1.29 + // a stack trace with every log message.
1.30 + ENABLE_STACK_TRACE_CAPTURE = 0x0001,
1.31 + // If this bit is set in our provider enable mask, the provider will log
1.32 + // a LOG message with only the textual content of the message, and no
1.33 + // stack trace.
1.34 + ENABLE_LOG_MESSAGE_ONLY = 0x0002,
1.35 +};
1.36 +
1.37 +// The message types our log event provider generates.
1.38 +// ETW likes user message types to start at 10.
1.39 +enum LogMessageTypes {
1.40 + // A textual only log message, contains a zero-terminated string.
1.41 + LOG_MESSAGE = 10,
1.42 + // A message with a stack trace, followed by the zero-terminated
1.43 + // message text.
1.44 + LOG_MESSAGE_WITH_STACKTRACE = 11,
1.45 + // A message with:
1.46 + // a stack trace,
1.47 + // the line number as a four byte integer,
1.48 + // the file as a zero terminated UTF8 string,
1.49 + // the zero-terminated UTF8 message text.
1.50 + LOG_MESSAGE_FULL = 12,
1.51 +};
1.52 +
1.53 +// Trace provider class to drive log control and transport
1.54 +// with Event Tracing for Windows.
1.55 +class BASE_EXPORT LogEventProvider : public base::win::EtwTraceProvider {
1.56 + public:
1.57 + static LogEventProvider* GetInstance();
1.58 +
1.59 + static bool LogMessage(logging::LogSeverity severity, const char* file,
1.60 + int line, size_t message_start, const std::string& str);
1.61 +
1.62 + static void Initialize(const GUID& provider_name);
1.63 + static void Uninitialize();
1.64 +
1.65 + protected:
1.66 + // Overridden to manipulate the log level on ETW control callbacks.
1.67 + virtual void OnEventsEnabled();
1.68 + virtual void OnEventsDisabled();
1.69 +
1.70 + private:
1.71 + LogEventProvider();
1.72 +
1.73 + // The log severity prior to OnEventsEnabled,
1.74 + // restored in OnEventsDisabled.
1.75 + logging::LogSeverity old_log_level_;
1.76 +
1.77 + friend struct StaticMemorySingletonTraits<LogEventProvider>;
1.78 + DISALLOW_COPY_AND_ASSIGN(LogEventProvider);
1.79 +};
1.80 +
1.81 +} // namespace logging
1.82 +
1.83 +#endif // BASE_LOGGING_WIN_H_
