63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
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// Copyright 2020 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BASE_FUCHSIA_SCOPED_FX_LOGGER_H_
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#define BASE_FUCHSIA_SCOPED_FX_LOGGER_H_
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#include <fidl/fuchsia.logger/cpp/fidl.h>
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#include <lib/syslog/structured_backend/cpp/fuchsia_syslog.h>
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#include <lib/zx/socket.h>
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#include <stdint.h>
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#include <string>
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#include <vector>
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#include "base/base_export.h"
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#include "base/strings/string_piece.h"
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namespace base {
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// Emits log lines to a logger created via the specified LogSink.
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// This class is thread-safe.
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class BASE_EXPORT ScopedFxLogger {
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public:
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ScopedFxLogger();
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~ScopedFxLogger();
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ScopedFxLogger(ScopedFxLogger&& other);
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ScopedFxLogger& operator=(ScopedFxLogger&& other);
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// Returns an instance connected to the process' incoming LogSink service.
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// The returned instance has a single tag attributing the calling process in
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// some way (e.g. by Component or process name).
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// Additional tags may optionally be specified via `tags`.
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static ScopedFxLogger CreateForProcess(
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std::vector<base::StringPiece> tags = {});
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// Returns an instance connected to the specified LogSink.
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static ScopedFxLogger CreateFromLogSink(
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fidl::ClientEnd<fuchsia_logger::LogSink> client_end,
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std::vector<base::StringPiece> tags = {});
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void LogMessage(base::StringPiece file,
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uint32_t line_number,
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base::StringPiece msg,
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FuchsiaLogSeverity severity);
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bool is_valid() const { return socket_.is_valid(); }
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private:
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ScopedFxLogger(std::vector<base::StringPiece> tags, zx::socket socket);
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// For thread-safety these members should be treated as read-only.
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// They are non-const only to allow move-assignment of ScopedFxLogger.
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std::vector<std::string> tags_;
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zx::socket socket_;
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};
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} // namespace base
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#endif // BASE_FUCHSIA_SCOPED_FX_LOGGER_H_
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