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Misc implementations and fixes. (#250)

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* Implement `sceKernelFtruncate` and `sceKernelUnlink`.

* Remove unused variable.

* Implement `sceKernelReserveVirtualRange`, misc fixes

* Fix `sceKernelReserveVirtualRange`.

* Add TODO on reserve

* Replace comment with assert.

* Add missing copyright header

* Add `UNREACHABLE` for `IOFile::Unlink`.

* Move NT API initialization out of the header

* Fix bug where files were always mapped as read only.

* `clang-format`
This commit is contained in:
Daniel R 2024-07-11 14:35:58 +02:00 • committed by GitHub
parent 989f88837d
commit 914aa10875
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GPG key ID: B5690EEEBB952194
15 changed files with 331 additions and 19 deletions
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37
src/common/io_file.cpp
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@ -11,6 +11,8 @@
#include "common/path_util.h"
#ifdef _WIN32
#include "common/ntapi.h"
#include <io.h>
#include <share.h>
#include <windows.h>
@ -221,15 +223,46 @@ void IOFile::Close() {
#endif
}
void IOFile::Unlink() {
if (!IsOpen()) {
return;
}
// Mark the file for deletion
// TODO: Also remove the file path?
#if _WIN64
FILE_DISPOSITION_INFORMATION disposition;
IO_STATUS_BLOCK iosb;
const int fd = fileno(file);
HANDLE hfile = reinterpret_cast<HANDLE>(_get_osfhandle(fd));
disposition.DeleteFile = TRUE;
NtSetInformationFile(hfile, &iosb, &disposition, sizeof(disposition),
FileDispositionInformation);
#else
UNREACHABLE_MSG("Missing Linux implementation");
#endif
}
uintptr_t IOFile::GetFileMapping() {
if (file_mapping) {
return file_mapping;
}
#ifdef _WIN64
const int fd = fileno(file);
HANDLE hfile = reinterpret_cast<HANDLE>(_get_osfhandle(fd));
HANDLE mapping =
CreateFileMapping2(hfile, NULL, FILE_MAP_READ, PAGE_READONLY, SEC_COMMIT, 0, NULL, NULL, 0);
HANDLE mapping = nullptr;
if (file_access_mode == FileAccessMode::ReadWrite) {
mapping = CreateFileMapping2(hfile, NULL, FILE_MAP_WRITE, PAGE_READWRITE, SEC_COMMIT, 0,
NULL, NULL, 0);
} else {
mapping = CreateFileMapping2(hfile, NULL, FILE_MAP_READ, PAGE_READONLY, SEC_COMMIT, 0, NULL,
NULL, 0);
}
file_mapping = std::bit_cast<uintptr_t>(mapping);
ASSERT_MSG(file_mapping, "{}", Common::GetLastErrorMsg());
return file_mapping;