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NtSetInformationFile for seek position.

This commit is contained in:
Ben Vanik 2013-10-16 22:28:26 -07:00
parent 5de9b84904
commit fd1054d823
2 changed files with 60 additions and 0 deletions
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1
src/xenia/kernel/modules/xboxkrnl/objects/xfile.h
View File

@ -29,6 +29,7 @@ public:
virtual ~XFile();
size_t position() const { return position_; }
void set_position(size_t value) { position_ = value; }
virtual X_STATUS Wait(uint32_t wait_reason, uint32_t processor_mode,
uint32_t alertable, uint64_t* opt_timeout);

59
src/xenia/kernel/modules/xboxkrnl/xboxkrnl_io.cc
View File

@ -217,6 +217,64 @@ SHIM_CALL NtReadFile_shim(
SHIM_SET_RETURN(result);
}
SHIM_CALL NtSetInformationFile_shim(
xe_ppc_state_t* ppc_state, KernelState* state) {
uint32_t file_handle = SHIM_GET_ARG_32(0);
uint32_t io_status_block_ptr = SHIM_GET_ARG_32(1);
uint32_t file_info_ptr = SHIM_GET_ARG_32(2);
uint32_t length = SHIM_GET_ARG_32(3);
uint32_t file_info_class = SHIM_GET_ARG_32(4);
XELOGD(
"NtSetInformationFile(%.8X, %.8X, %.8X, %.8X, %.8X)",
file_handle,
io_status_block_ptr,
file_info_ptr,
length,
file_info_class);
X_STATUS result = X_STATUS_SUCCESS;
uint32_t info = 0;
// Grab file.
XFile* file = NULL;
result = state->object_table()->GetObject(
file_handle, (XObject**)&file);
if (XSUCCEEDED(result)) {
result = X_STATUS_SUCCESS;
switch (file_info_class) {
case XFilePositionInformation:
// struct FILE_POSITION_INFORMATION {
// LARGE_INTEGER CurrentByteOffset;
// };
XEASSERT(length == 8);
info = 8;
file->set_position(SHIM_MEM_64(file_info_ptr));
break;
default:
// Unsupported, for now.
XEASSERTALWAYS();
info = 0;
break;
}
}
if (XFAILED(result)) {
info = 0;
}
if (io_status_block_ptr) {
SHIM_SET_MEM_32(io_status_block_ptr, result); // Status
SHIM_SET_MEM_32(io_status_block_ptr + 4, info); // Information
}
if (file) {
file->Release();
}
SHIM_SET_RETURN(result);
}
SHIM_CALL NtQueryInformationFile_shim(
xe_ppc_state_t* ppc_state, KernelState* state) {
uint32_t file_handle = SHIM_GET_ARG_32(0);
@ -353,6 +411,7 @@ void xe::kernel::xboxkrnl::RegisterIoExports(
SHIM_SET_MAPPING("xboxkrnl.exe", NtOpenFile, state);
SHIM_SET_MAPPING("xboxkrnl.exe", NtReadFile, state);
SHIM_SET_MAPPING("xboxkrnl.exe", NtQueryInformationFile, state);
SHIM_SET_MAPPING("xboxkrnl.exe", NtSetInformationFile, state);
SHIM_SET_MAPPING("xboxkrnl.exe", NtQueryFullAttributesFile, state);
SHIM_SET_MAPPING("xboxkrnl.exe", NtQueryVolumeInformationFile, state);
}