mirror of
https://github.com/facebook/sapling.git
synced 2024-10-07 15:27:13 +03:00
aed430d676
Summary: Windows sdk doesn't define mode_t. On Windows we use mode to store the file type info which should fix in 16 bits - S_FMT is defined as 0xf000. Reviewed By: simpkins Differential Revision: D19956270 fbshipit-source-id: 81acd2cd708f1c82674b8b75cd607d4f5b41a156
71 lines
1.8 KiB
C++
71 lines
1.8 KiB
C++
/*
|
|
* Copyright (c) Facebook, Inc. and its affiliates.
|
|
*
|
|
* This software may be used and distributed according to the terms of the
|
|
* GNU General Public License version 2.
|
|
*/
|
|
|
|
#include "eden/fs/inodes/DirEntry.h"
|
|
#include "eden/fs/inodes/FileInode.h"
|
|
#include "eden/fs/inodes/TreeInode.h"
|
|
|
|
#ifndef _WIN32
|
|
/*
|
|
* DirEntry relies on mode_t fitting in 30 bits. In practice, on every system
|
|
* Eden is likely to run on, mode_t only uses around 17 bits.
|
|
*
|
|
* https://github.com/torvalds/linux/blob/master/include/uapi/linux/stat.h
|
|
* https://opensource.apple.com/source/xnu/xnu-201.5/bsd/sys/stat.h.auto.html
|
|
*
|
|
* Statically assert that the top two bits aren't used by any standard
|
|
* constants.
|
|
*/
|
|
static_assert(
|
|
uint32_t{S_IFMT | S_IRWXU | S_IRWXG | S_IRWXO} <= 0x3FFFFFFFu,
|
|
"standard constants shouldn't use top two bits");
|
|
#endif // !_WIN32
|
|
|
|
namespace facebook {
|
|
namespace eden {
|
|
|
|
InodeNumber DirEntry::getInodeNumber() const {
|
|
return hasInodePointer_ ? inode_->getNodeId() : inodeNumber_;
|
|
}
|
|
|
|
FileInodePtr DirEntry::asFilePtrOrNull() const {
|
|
if (hasInodePointer_) {
|
|
if (auto file = dynamic_cast<FileInode*>(inode_)) {
|
|
return FileInodePtr::newPtrLocked(file);
|
|
}
|
|
}
|
|
return FileInodePtr{};
|
|
}
|
|
|
|
TreeInodePtr DirEntry::asTreePtrOrNull() const {
|
|
if (hasInodePointer_) {
|
|
if (auto tree = dynamic_cast<TreeInode*>(inode_)) {
|
|
return TreeInodePtr::newPtrLocked(tree);
|
|
}
|
|
}
|
|
return TreeInodePtr{};
|
|
}
|
|
|
|
void DirEntry::setInode(InodeBase* inode) {
|
|
DCHECK(!hasInodePointer_);
|
|
DCHECK(inode);
|
|
DCHECK_EQ(inodeNumber_, inode->getNodeId());
|
|
hasInodePointer_ = true;
|
|
inode_ = inode;
|
|
}
|
|
|
|
InodeBase* DirEntry::clearInode() {
|
|
DCHECK(hasInodePointer_);
|
|
auto inode = inode_;
|
|
hasInodePointer_ = false;
|
|
inodeNumber_ = inode->getNodeId();
|
|
return inode;
|
|
}
|
|
|
|
} // namespace eden
|
|
} // namespace facebook
|