Files
KytyPS5/src/common/platform/sysWindowsFileIO.cpp
T
Aspen 4b0de1b672 Zarchive Loading (#724)
* Simplify archive loading and harden filesystem integration

* Restore directory entry name length assertion

* Keep graphics-dependent filesystem tests out of CI

---------

Co-authored-by: nmzik <Nmzik@mail.ru>
2026-09-29 00:06:44 +04:00

529 lines
14 KiB
C++

#include "common/common.h"
#if KYTY_PLATFORM != KYTY_PLATFORM_WINDOWS
// #error "KYTY_PLATFORM != KYTY_PLATFORM_WINDOWS"
#else
#ifndef NOMINMAX
#define NOMINMAX
#endif
#include <windows.h> // IWYU pragma: keep
#include "common/platform/sysFileIO.h"
#include "common/platform/sysTimer.h"
#include "common/stringUtils.h"
#include <cstdlib>
#include <cstring>
#include <vector>
// NOLINTNEXTLINE(readability-identifier-naming)
enum sys_file_type_t {
SYS_FILE_ERROR, // NOLINT(readability-identifier-naming)
SYS_FILE_MEMORY_STAT, // NOLINT(readability-identifier-naming)
SYS_FILE_FILE, // NOLINT(readability-identifier-naming)
SYS_FILE_MEMORY_DYN // NOLINT(readability-identifier-naming)
};
// NOLINTNEXTLINE(readability-identifier-naming)
struct sys_file_mem_buf_t {
uint8_t* base;
uint8_t* ptr;
uint32_t size;
};
// NOLINTNEXTLINE(readability-identifier-naming)
struct sys_file_t {
sys_file_type_t type;
union {
HANDLE handle;
sys_file_mem_buf_t* buf;
};
};
// IWYU pragma: no_include <fileapi.h>
// IWYU pragma: no_include <handleapi.h>
// IWYU pragma: no_include <minwinbase.h>
// IWYU pragma: no_include <minwindef.h>
// IWYU pragma: no_include <winbase.h>
constexpr DWORD FILE_SHARE_POSIX = static_cast<DWORD>(FILE_SHARE_READ) |
static_cast<DWORD>(FILE_SHARE_WRITE) |
static_cast<DWORD>(FILE_SHARE_DELETE);
static DWORD GetCacheAccessType(sys_file_cache_type_t t) {
if (t == SYS_FILE_CACHE_RANDOM_ACCESS) {
return FILE_FLAG_RANDOM_ACCESS;
}
if (t == SYS_FILE_CACHE_SEQUENTIAL_SCAN) {
return FILE_FLAG_SEQUENTIAL_SCAN;
}
return FILE_ATTRIBUTE_NORMAL;
}
void SysFileRead(void* data, uint32_t size, sys_file_t& f, uint32_t* bytes_read) {
if (f.type == SYS_FILE_FILE) {
DWORD w = 0;
ReadFile(f.handle, data, size, &w, nullptr);
if (bytes_read != nullptr) {
*bytes_read = w;
}
} else if (f.type == SYS_FILE_MEMORY_STAT) {
uint32_t s = size;
if (f.buf->size != 0u) {
uint32_t l = f.buf->size - (f.buf->ptr - f.buf->base);
if (s > l) {
s = l;
}
}
std::memcpy(data, f.buf->ptr, s);
f.buf->ptr += s;
if (bytes_read != nullptr) {
*bytes_read = s;
}
} else if (f.type == SYS_FILE_MEMORY_DYN) {
uint32_t s = size;
if (f.buf->size != 0u) {
uint32_t l = f.buf->size - (f.buf->ptr - f.buf->base);
if (s > l) {
s = l;
}
} else {
s = 0;
}
std::memcpy(data, f.buf->ptr, s);
f.buf->ptr += s;
if (bytes_read != nullptr) {
*bytes_read = s;
}
}
}
void SysFileWrite(const void* data, uint32_t size, sys_file_t& f, uint32_t* bytes_written) {
if (f.type == SYS_FILE_FILE) {
DWORD w = 0;
WriteFile(f.handle, data, size, &w, nullptr);
if (bytes_written != nullptr) {
*bytes_written = w;
}
} else if (f.type == SYS_FILE_MEMORY_STAT) {
uint32_t s = size;
if (f.buf->size != 0u) {
uint32_t l = f.buf->size - (f.buf->ptr - f.buf->base);
if (s > l) {
s = l;
}
}
std::memcpy(f.buf->ptr, data, s);
f.buf->ptr += s;
if (bytes_written != nullptr) {
*bytes_written = s;
}
} else if (f.type == SYS_FILE_MEMORY_DYN) {
uint32_t pos = f.buf->ptr - f.buf->base;
if (f.buf->size < pos + size) {
f.buf->base = static_cast<uint8_t*>(std::realloc(f.buf->base, pos + size));
f.buf->ptr = f.buf->base + pos;
f.buf->size = pos + size;
}
std::memcpy(f.buf->ptr, data, size);
f.buf->ptr += size;
if (bytes_written != nullptr) {
*bytes_written = size;
}
}
}
sys_file_t* SysFileCreate(const std::filesystem::path& file_name) {
auto* ret = new sys_file_t;
auto wide = file_name.wstring();
HANDLE h_file = nullptr;
h_file = CreateFileW(wide.c_str(),
static_cast<DWORD>(GENERIC_READ) | static_cast<DWORD>(GENERIC_WRITE) |
static_cast<DWORD>(DELETE),
FILE_SHARE_POSIX, nullptr, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr);
ret->handle = h_file;
ret->type = SYS_FILE_FILE;
return ret;
}
sys_file_t* SysFileOpenR(const std::filesystem::path& file_name, sys_file_cache_type_t cache_type) {
auto* ret = new sys_file_t;
auto wide = file_name.wstring();
HANDLE h_file = nullptr;
h_file = CreateFileW(wide.c_str(), GENERIC_READ, FILE_SHARE_POSIX, nullptr, OPEN_EXISTING,
GetCacheAccessType(cache_type), nullptr);
if (h_file == INVALID_HANDLE_VALUE) {
ret->type = SYS_FILE_ERROR;
} else {
ret->type = SYS_FILE_FILE;
}
ret->handle = h_file;
return ret;
}
sys_file_t* SysFileOpen(uint8_t* buf, uint32_t buf_size) {
auto* ret = new sys_file_t;
ret->type = SYS_FILE_MEMORY_STAT;
ret->buf = new sys_file_mem_buf_t;
ret->buf->base = buf;
ret->buf->ptr = buf;
ret->buf->size = buf_size;
return ret;
}
sys_file_t* SysFileCreate() {
auto* ret = new sys_file_t;
ret->type = SYS_FILE_MEMORY_DYN;
ret->buf = new sys_file_mem_buf_t;
ret->buf->base = nullptr;
ret->buf->ptr = nullptr;
ret->buf->size = 0;
return ret;
}
sys_file_t* SysFileOpenW(const std::filesystem::path& file_name, sys_file_cache_type_t cache_type) {
auto* ret = new sys_file_t;
auto wide = file_name.wstring();
HANDLE h_file = nullptr;
h_file = CreateFileW(
wide.c_str(), static_cast<DWORD>(GENERIC_WRITE) | static_cast<DWORD>(DELETE),
FILE_SHARE_POSIX, nullptr, OPEN_EXISTING, GetCacheAccessType(cache_type), nullptr);
if (h_file == INVALID_HANDLE_VALUE) {
ret->type = SYS_FILE_ERROR;
} else {
ret->type = SYS_FILE_FILE;
}
ret->handle = h_file;
return ret;
}
sys_file_t* SysFileOpenRw(const std::filesystem::path& file_name,
sys_file_cache_type_t cache_type) {
auto* ret = new sys_file_t;
auto wide = file_name.wstring();
HANDLE h_file = nullptr;
h_file = CreateFileW(wide.c_str(),
static_cast<DWORD>(GENERIC_READ) | static_cast<DWORD>(GENERIC_WRITE) |
static_cast<DWORD>(DELETE),
FILE_SHARE_POSIX, nullptr, OPEN_EXISTING, GetCacheAccessType(cache_type),
nullptr);
if (h_file == INVALID_HANDLE_VALUE) {
ret->type = SYS_FILE_ERROR;
} else {
ret->type = SYS_FILE_FILE;
}
ret->handle = h_file;
return ret;
}
void SysFileClose(sys_file_t* f) {
if (f->type == SYS_FILE_FILE) {
CloseHandle(f->handle);
} else if (f->type == SYS_FILE_MEMORY_STAT) {
delete f->buf;
} else if (f->type == SYS_FILE_MEMORY_DYN) {
std::free(f->buf->base);
delete f->buf;
}
// f.type = SYS_FILE_ERROR;
delete f;
}
uint64_t SysFileSize(sys_file_t& f) {
if (f.type == SYS_FILE_FILE) {
LARGE_INTEGER s;
GetFileSizeEx(f.handle, &s);
return s.QuadPart;
}
if (f.type == SYS_FILE_MEMORY_STAT || f.type == SYS_FILE_MEMORY_DYN) {
return f.buf->size;
}
return 0;
}
bool SysFileGetInfo(const std::filesystem::path& name, bool* is_file, uint64_t* size) {
const bool directory_path = !name.empty() && !name.has_filename() && name != name.root_path();
WIN32_FILE_ATTRIBUTE_DATA info {};
if (GetFileAttributesExW(directory_path ? name.parent_path().c_str() : name.c_str(),
GetFileExInfoStandard, &info) == 0) {
return false;
}
const bool file = (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0;
if (directory_path && file) {
return false;
}
*is_file = file;
*size = *is_file ? ((static_cast<uint64_t>(info.nFileSizeHigh) << 32u) | info.nFileSizeLow) : 0;
return true;
}
uint64_t SysFileSize(const std::filesystem::path& file_name) {
bool is_file;
uint64_t size = 0;
SysFileGetInfo(file_name, &is_file, &size);
return size;
}
bool SysFileTruncate(sys_file_t& f, uint64_t size) {
bool ok = false;
if (f.type == SYS_FILE_FILE) {
LARGE_INTEGER s {};
LARGE_INTEGER r {};
s.QuadPart = 0;
SetFilePointerEx(f.handle, s, &r, FILE_CURRENT);
s.QuadPart = static_cast<LONGLONG>(size);
ok = (SetFilePointerEx(f.handle, s, nullptr, FILE_BEGIN) != 0 &&
SetEndOfFile(f.handle) != 0);
SetFilePointerEx(f.handle, r, nullptr, FILE_BEGIN);
}
return ok;
}
bool SysFileUnlink(sys_file_t& f, const std::filesystem::path& name) {
if (f.type == SYS_FILE_FILE) {
FILE_DISPOSITION_INFO info {};
info.DeleteFile = TRUE;
if (SetFileInformationByHandle(f.handle, FileDispositionInfo, &info, sizeof(info)) != 0) {
return true;
}
}
return SysFileDeleteFile(name);
}
bool SysFileSeek(sys_file_t& f, uint64_t offset) {
bool ok = true;
if (f.type == SYS_FILE_FILE) {
LARGE_INTEGER s;
s.QuadPart = static_cast<LONGLONG>(offset);
ok = (SetFilePointerEx(f.handle, s, nullptr, FILE_BEGIN) != 0);
// printf("seek: %u\n", offset);
} else if (f.type == SYS_FILE_MEMORY_STAT || f.type == SYS_FILE_MEMORY_DYN) {
f.buf->ptr = f.buf->base + offset;
}
return ok;
}
uint64_t SysFileTell(sys_file_t& f) {
if (f.type == SYS_FILE_FILE) {
LARGE_INTEGER s {};
LARGE_INTEGER r {};
s.QuadPart = 0;
SetFilePointerEx(f.handle, s, &r, FILE_CURRENT);
// printf("tell: %u\n", r.QuadPart);
return r.QuadPart;
}
if (f.type == SYS_FILE_MEMORY_STAT || f.type == SYS_FILE_MEMORY_DYN) {
return f.buf->ptr - f.buf->base;
}
return 0;
}
bool SysFileIsError(sys_file_t& f) {
return f.type == SYS_FILE_ERROR ||
(f.type == SYS_FILE_FILE && f.handle == INVALID_HANDLE_VALUE);
}
bool SysFileIsDirectoryExisting(const std::filesystem::path& path) {
bool is_file;
uint64_t size;
return SysFileGetInfo(path, &is_file, &size) && !is_file;
}
bool SysFileIsFileExisting(const std::filesystem::path& name) {
bool is_file;
uint64_t size;
return SysFileGetInfo(name, &is_file, &size) && is_file;
}
bool SysFileCreateDirectory(const std::filesystem::path& path) {
auto wide = path.wstring();
return CreateDirectoryW(wide.c_str(), nullptr) != 0;
}
bool SysFileDeleteDirectory(const std::filesystem::path& path) {
auto wide = path.wstring();
return RemoveDirectoryW(wide.c_str()) != 0;
}
bool SysFileDeleteFile(const std::filesystem::path& name) {
auto wide = name.wstring();
return DeleteFileW(wide.c_str()) != 0;
}
bool SysFileFlush(sys_file_t& f) {
if (f.type == SYS_FILE_FILE && f.handle != INVALID_HANDLE_VALUE) {
return (FlushFileBuffers(f.handle) != 0);
}
return false;
}
SysFileTimeStruct SysFileGetLastAccessTimeUtc(const std::filesystem::path& name) {
SysFileTimeStruct r {};
sys_file_t* f = SysFileOpenR(name);
r.is_invalid =
(f->type == SYS_FILE_ERROR || (GetFileTime(f->handle, nullptr, &r.time, nullptr) == 0));
SysFileClose(f);
return r;
}
SysFileTimeStruct SysFileGetLastWriteTimeUtc(const std::filesystem::path& name) {
SysFileTimeStruct r {};
sys_file_t* f = SysFileOpenR(name);
r.is_invalid =
(f->type == SYS_FILE_ERROR || (GetFileTime(f->handle, nullptr, nullptr, &r.time) == 0));
SysFileClose(f);
return r;
}
void SysFileGetLastAccessAndWriteTimeUtc(const std::filesystem::path& name, SysFileTimeStruct& a,
SysFileTimeStruct& w) {
// TODO() open file with dwDesiredAccess = 0
// TODO() open directory
sys_file_t* f = SysFileOpenR(name);
a.is_invalid = w.is_invalid =
(f->type == SYS_FILE_ERROR || (GetFileTime(f->handle, nullptr, &a.time, &w.time) == 0));
SysFileClose(f);
}
void SysFileGetLastAccessAndWriteTimeUtc(sys_file_t& f, SysFileTimeStruct& a,
SysFileTimeStruct& w) {
if (f.type == SYS_FILE_FILE) {
a.is_invalid = w.is_invalid = (GetFileTime(f.handle, nullptr, &a.time, &w.time) == 0);
} else if (f.type == SYS_FILE_MEMORY_STAT || f.type == SYS_FILE_MEMORY_DYN) {
SysTimeStruct t {};
SysGetSystemTimeUtc(t);
SysSystemToFileTimeUtc(t, a);
SysSystemToFileTimeUtc(t, w);
} else {
a.is_invalid = w.is_invalid = true;
}
}
bool SysFileSetLastAccessTimeUtc(const std::filesystem::path& name, SysFileTimeStruct& access) {
if (access.is_invalid) {
return false;
}
bool ok = true;
sys_file_t* f = SysFileOpenW(name);
ok = !(f->type == SYS_FILE_ERROR ||
(SetFileTime(f->handle, nullptr, &access.time, nullptr) == 0));
SysFileClose(f);
return ok;
}
bool SysFileSetLastWriteTimeUtc(const std::filesystem::path& name, SysFileTimeStruct& write) {
if (write.is_invalid) {
return false;
}
bool ok = true;
sys_file_t* f = SysFileOpenW(name);
ok = !(f->type == SYS_FILE_ERROR ||
(SetFileTime(f->handle, nullptr, nullptr, &write.time) == 0));
SysFileClose(f);
return ok;
}
bool SysFileSetLastAccessAndWriteTimeUtc(const std::filesystem::path& name,
SysFileTimeStruct& access, SysFileTimeStruct& write) {
if (access.is_invalid || write.is_invalid) {
return false;
}
bool ok = true;
sys_file_t* f = SysFileOpenW(name);
ok = !(f->type == SYS_FILE_ERROR ||
(SetFileTime(f->handle, nullptr, &access.time, &write.time) == 0));
SysFileClose(f);
return ok;
}
void SysFileGetDents(const std::filesystem::path& path, std::vector<sys_dir_entry_t>& out) {
const auto pattern = path / L"*";
WIN32_FIND_DATAW data {};
HANDLE h = FindFirstFileW(pattern.c_str(), &data);
if (h == INVALID_HANDLE_VALUE) {
return;
}
do {
std::filesystem::path file_name(data.cFileName);
sys_dir_entry_t r {};
r.is_file = ((data.dwFileAttributes & static_cast<DWORD>(FILE_ATTRIBUTE_DIRECTORY)) == 0u);
r.name = Common::PathToString(file_name);
out.push_back(std::move(r));
} while (FindNextFileW(h, &data) != 0);
FindClose(h);
}
bool SysFileCopyFile(const std::filesystem::path& src, const std::filesystem::path& dst) {
auto src_wide = src.wstring();
auto dst_wide = dst.wstring();
return CopyFileW(src_wide.c_str(), dst_wide.c_str(), FALSE) != 0;
}
bool SysFileRenameFile(const std::filesystem::path& src, const std::filesystem::path& dst) {
auto src_wide = src.wstring();
auto dst_wide = dst.wstring();
return MoveFileW(src_wide.c_str(), dst_wide.c_str()) != 0;
}
void SysFileRemoveReadonly(const std::filesystem::path& name) {
auto wide = name.wstring();
SetFileAttributesW(wide.c_str(), GetFileAttributesW(wide.c_str()) &
(~static_cast<DWORD>(FILE_ATTRIBUTE_READONLY)));
}
#endif