mirror of
https://github.com/FEX-Emu/FEX.git
synced 2026-10-14 16:00:44 +02:00
Ryan Houdek
35af4bd42a
This has been a long time coming. The C interface has been a thorn in our side for no reason for a long time. The purpose of this step is to remove the C interface without changing behaviour as much as possible. This means that with this commit there are still some bad practices but the remaining issues will be solved with followup PRs. Primarily, we still have a `DestroyContext(CTX)` static function which calls the Context implementation's `DestroyContext` and does a raw C++ delete. Follow up PR will remove that, but I didn't want to touch it yet since it'll require checking to ensure the unique_ptr changes play nice with our allocator hooking. Which this is already a huge PR without trying to change behaviour.
101 lines
3.1 KiB
C++
101 lines
3.1 KiB
C++
/*
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$info$
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tags: LinuxSyscalls|common
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$end_info$
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*/
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#pragma once
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#include <FEXCore/Config/Config.h>
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#include <cstdint>
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#include <functional>
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#include <map>
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#include <mutex>
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#include <optional>
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#include <stddef.h>
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#include <string>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <vector>
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#include <unordered_map>
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#include <unordered_set>
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#include "Tests/LinuxSyscalls/EmulatedFiles/EmulatedFiles.h"
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namespace FEXCore::Context {
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class Context;
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}
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namespace FEX::HLE {
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[[maybe_unused]]
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static bool IsSymlink(const std::string &Filename) {
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// Checks to see if a filepath is a symlink.
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struct stat Buffer{};
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int Result = lstat(Filename.c_str(), &Buffer);
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return Result == 0 && S_ISLNK(Buffer.st_mode);
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}
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[[maybe_unused]]
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static ssize_t GetSymlink(const std::string &Filename, char *ResultBuffer, size_t ResultBufferSize) {
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return readlink(Filename.c_str(), ResultBuffer, ResultBufferSize);
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}
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struct open_how;
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class FileManager final {
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public:
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FileManager() = delete;
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FileManager(FileManager &&) = delete;
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FileManager(FEXCore::Context::Context *ctx);
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~FileManager();
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uint64_t Open(const char *pathname, int flags, uint32_t mode);
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uint64_t Close(int fd);
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uint64_t CloseRange(unsigned int first, unsigned int last, unsigned int flags);
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uint64_t Stat(const char *pathname, void *buf);
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uint64_t Lstat(const char *path, void *buf);
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uint64_t Access(const char *pathname, int mode);
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uint64_t FAccessat(int dirfd, const char *pathname, int mode);
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uint64_t FAccessat2(int dirfd, const char *pathname, int mode, int flags);
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uint64_t Readlink(const char *pathname, char *buf, size_t bufsiz);
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uint64_t Chmod(const char *pathname, mode_t mode);
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uint64_t Readlinkat(int dirfd, const char *pathname, char *buf, size_t bufsiz);
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uint64_t Openat(int dirfs, const char *pathname, int flags, uint32_t mode);
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uint64_t Openat2(int dirfs, const char *pathname, FEX::HLE::open_how *how, size_t usize);
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uint64_t Statx(int dirfd, const char *pathname, int flags, uint32_t mask, struct statx *statxbuf);
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uint64_t Mknod(const char *pathname, mode_t mode, dev_t dev);
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uint64_t NewFSStatAt(int dirfd, const char *pathname, struct stat *buf, int flag);
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uint64_t NewFSStatAt64(int dirfd, const char *pathname, struct stat64 *buf, int flag);
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// vfs
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uint64_t Statfs(const char *path, void *buf);
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std::string *FindFDName(int fd);
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std::optional<std::string> GetSelf(const char *Pathname);
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void UpdatePID(uint32_t PID) { CurrentPID = PID; }
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std::string GetEmulatedPath(const char *pathname, bool FollowSymlink = false);
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std::mutex *GetFDLock() { return &FDLock; }
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private:
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FEX::EmulatedFile::EmulatedFDManager EmuFD;
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std::mutex FDLock;
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std::map<uint32_t, std::string> FDToNameMap;
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std::map<std::string, std::string, std::less<>> ThunkOverlays;
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FEX_CONFIG_OPT(Filename, APP_FILENAME);
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FEX_CONFIG_OPT(LDPath, ROOTFS);
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FEX_CONFIG_OPT(ThunkGuestLibs, THUNKGUESTLIBS);
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FEX_CONFIG_OPT(ThunkGuestLibs32, THUNKGUESTLIBS32);
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FEX_CONFIG_OPT(ThunkConfig, THUNKCONFIG);
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FEX_CONFIG_OPT(AppConfigName, APP_CONFIG_NAME);
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FEX_CONFIG_OPT(Is64BitMode, IS64BIT_MODE);
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uint32_t CurrentPID{};
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};
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}
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