mirror of
https://github.com/facebook/sapling.git
synced 2024-10-06 23:07:18 +03:00
251da81f36
Summary: Update copyright statements to "2016-present". This makes our updated lint rules happy and complies with the recommended license header statement. Reviewed By: wez, bolinfest Differential Revision: D4433594 fbshipit-source-id: e9ecb1c1fc66e4ec49c1f046c6a98d425b13bc27
90 lines
2.5 KiB
C++
90 lines
2.5 KiB
C++
/*
|
|
* Copyright (c) 2016-present, Facebook, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This source code is licensed under the BSD-style license found in the
|
|
* LICENSE file in the root directory of this source tree. An additional grant
|
|
* of patent rights can be found in the PATENTS file in the same directory.
|
|
*
|
|
*/
|
|
#pragma once
|
|
|
|
#include <folly/Format.h>
|
|
#include <folly/Optional.h>
|
|
#include <folly/Synchronized.h>
|
|
#include <memory>
|
|
#include <system_error>
|
|
#include "eden/fs/inodes/InodePtr.h"
|
|
#include "eden/utils/PathFuncs.h"
|
|
|
|
namespace facebook {
|
|
namespace eden {
|
|
|
|
/**
|
|
* A subclass of std::system_error referring to a specific inode.
|
|
*
|
|
* The main advantage of this class is that it can include the Inode path in
|
|
* the error message. However, it avoids computing the path until the error
|
|
* message is actually needed. If the error is caught and handled without
|
|
* looking at the error message, then the path never needs to be computed.
|
|
*/
|
|
class InodeError : public std::system_error {
|
|
public:
|
|
InodeError(int errnum, InodePtr inode)
|
|
: std::system_error(errnum, std::system_category()),
|
|
inode_(std::move(inode)) {}
|
|
InodeError(int errnum, TreeInodePtr inode, PathComponentPiece child);
|
|
InodeError(int errnum, InodePtr inode, std::string message)
|
|
: std::system_error(errnum, std::system_category()),
|
|
inode_(std::move(inode)),
|
|
message_(std::move(message)) {}
|
|
InodeError(
|
|
int errnum,
|
|
TreeInodePtr inode,
|
|
PathComponentPiece child,
|
|
std::string&& message);
|
|
template <typename... Args>
|
|
InodeError(
|
|
int errnum,
|
|
InodePtr inode,
|
|
folly::StringPiece format,
|
|
Args&&... args)
|
|
: InodeError(
|
|
errnum,
|
|
inode,
|
|
folly::sformat(format, std::forward<Args>(args)...)) {}
|
|
template <typename... Args>
|
|
InodeError(
|
|
int errnum,
|
|
TreeInodePtr inode,
|
|
PathComponentPiece child,
|
|
folly::StringPiece format,
|
|
Args&&... args)
|
|
: InodeError(
|
|
errnum,
|
|
inode,
|
|
child,
|
|
message_(folly::sformat(format, std::forward<Args>(args)...))) {}
|
|
|
|
const char* what() const noexcept override;
|
|
|
|
int errnum() const {
|
|
return code().value();
|
|
}
|
|
|
|
InodeError(InodeError const&) = default;
|
|
InodeError& operator=(InodeError const&) = default;
|
|
InodeError(InodeError&&) = default;
|
|
InodeError& operator=(InodeError&&) = default;
|
|
|
|
private:
|
|
std::string computeMessage() const;
|
|
|
|
InodePtr inode_;
|
|
folly::Optional<PathComponent> child_;
|
|
std::string message_;
|
|
mutable folly::Synchronized<std::string> fullMessage_;
|
|
};
|
|
}
|
|
}
|