folly/folly/debugging/symbolizer/SymbolizePrinter.h

/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * 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.
 */

#pragma once

#include <cstdint>

#include <folly/FBString.h>
#include <folly/Range.h>
#include <folly/experimental/symbolizer/SymbolizedFrame.h>

namespace folly {
class IOBuf;

namespace symbolizer {

/**
 * Format one address in the way it's usually printed by SymbolizePrinter.
 * Async-signal-safe.
 */
class AddressFormatter { … };

/**
 * Print a list of symbolized addresses. Base class.
 */
class SymbolizePrinter { … };

/**
 * Print a list of symbolized addresses to a stream.
 * Not reentrant. Do not use from signal handling code.
 */
class OStreamSymbolizePrinter : public SymbolizePrinter { … };

/**
 * Print a list of symbolized addresses to a file descriptor.
 * Ignores errors. Async-signal-safe.
 */
class FDSymbolizePrinter : public SymbolizePrinter { … };

/**
 * Print a list of symbolized addresses to a FILE*.
 * Ignores errors. Not reentrant. Do not use from signal handling code.
 */
class FILESymbolizePrinter : public SymbolizePrinter { … };

/**
 * Print a list of symbolized addresses to a std::string.
 * Not reentrant. Do not use from signal handling code.
 */
class StringSymbolizePrinter : public SymbolizePrinter { … };

} // namespace symbolizer
} // namespace folly