Diamond75/Panda3DS
1
0
Fork 0
mirror of https://github.com/wheremyfoodat/Panda3DS.git synced 2025-04-20 12:39:13 +12:00
Code Issues Projects Releases Packages Wiki Activity Actions

[FS] Implement OpenDirectory

Browse source
This commit is contained in:
wheremyfoodat 2023-03-24 14:07:44 +02:00
parent 1078253f6c
commit 494f3f1899
6 changed files with 89 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

16
include/fs/archive_base.hpp
View file

@ -2,6 +2,7 @@
#include <cassert>
#include <cstdio>
#include <cstring>
#include <filesystem>
#include <optional>
#include <string>
#include <type_traits>
@ -111,6 +112,17 @@ struct ArchiveSession {
ArchiveSession(ArchiveBase* archive, const FSPath& filePath, bool isOpen = true) : archive(archive), path(filePath), isOpen(isOpen) {}
};
struct DirectorySession {
ArchiveBase* archive = nullptr;
// For directories which are mirrored to a specific path on the disk, this contains that path
// Otherwise this is a nullopt
std::optional<std::filesystem::path> pathOnDisk;
bool isOpen;
DirectorySession(ArchiveBase* archive, std::filesystem::path path, bool isOpen = true) : archive(archive), pathOnDisk(path),
isOpen(isOpen) {}
};
// Represents a file descriptor obtained from OpenFile. If the optional is nullopt, opening the file failed.
// Otherwise the fd of the opened file is returned (or nullptr if the opened file doesn't require one)
using FileDescriptor = std::optional<FILE*>;
@ -201,6 +213,10 @@ public:
virtual FileDescriptor openFile(const FSPath& path, const FilePerms& perms) = 0;
virtual ArchiveBase* openArchive(const FSPath& path) = 0;
virtual std::optional<DirectorySession> openDirectory(const FSPath& path) {
Helpers::panic("Unimplemented OpenDirectory for %s archive", name().c_str());
return std::nullopt;
}
// Read size bytes from a file starting at offset "offset" into a certain buffer in memory
// Returns the number of bytes read, or nullopt if the read failed