mirror of
https://github.com/facebook/sapling.git
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639073cdd0
Summary: The result of `errnoStr` is often converted to `std::string` so returning `fbstring` adds an extra copy. Make it return `std::string` instead. This will also allow removing dependency between `String.h` and `FBString.h`. (Note: this ignores all push blocking failures!) Reviewed By: yfeldblum Differential Revision: D20195395 fbshipit-source-id: 0dc65f1566911156be3fcb715dd105c58f2a8822
66 lines
1.7 KiB
C++
66 lines
1.7 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This software may be used and distributed according to the terms of the
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* GNU General Public License version 2.
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*/
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#include "InodeError.h"
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#include <folly/String.h>
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#include "eden/fs/inodes/TreeInode.h"
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namespace facebook {
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namespace eden {
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InodeError::InodeError(int errnum, TreeInodePtr inode, PathComponentPiece child)
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: std::system_error(errnum, std::generic_category()),
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inode_(std::move(inode)),
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child_(PathComponent{child}) {}
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InodeError::InodeError(
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int errnum,
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TreeInodePtr inode,
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PathComponentPiece child,
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std::string&& message)
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: std::system_error(errnum, std::generic_category()),
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inode_(std::move(inode)),
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child_(PathComponent{child}),
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message_(std::move(message)) {}
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const char* InodeError::what() const noexcept {
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try {
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auto msg = fullMessage_.wlock();
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if (msg->empty()) {
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*msg = computeMessage();
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}
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return msg->c_str();
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} catch (...) {
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// Fallback value if anything goes wrong building the real message
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return "<InodeError>";
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}
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}
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std::string InodeError::computeMessage() const {
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std::string path;
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if (child_.has_value()) {
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if (inode_->getNodeId() == kRootNodeId) {
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path = child_.value().stringPiece().str();
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} else {
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path = inode_->getLogPath() + "/";
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auto childName = child_.value().stringPiece();
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path.append(childName.begin(), childName.end());
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}
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} else {
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path = inode_->getLogPath();
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}
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if (message_.empty()) {
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return path + ": " + folly::errnoStr(errnum());
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}
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return path + ": " + message_ + ": " + folly::errnoStr(errnum());
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}
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} // namespace eden
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} // namespace facebook
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