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NtOpenFile. Duplicated mostly from NtCreateFile's implementation. Probably wrong.

This commit is contained in:
gibbed 2014-01-17 19:45:56 -08:00
parent 5cdae4cee4
commit 3b151b21ad
1 changed files with 56 additions and 1 deletions
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57
src/xenia/kernel/xboxkrnl_io.cc
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@ -98,7 +98,62 @@ SHIM_CALL NtCreateFile_shim(
SHIM_CALL NtOpenFile_shim(
PPCContext* ppc_state, KernelState* state) {
SHIM_SET_RETURN(X_STATUS_NO_SUCH_FILE);
uint32_t handle_ptr = SHIM_GET_ARG_32(0);
uint32_t desired_access = SHIM_GET_ARG_32(1);
uint32_t object_attributes_ptr = SHIM_GET_ARG_32(2);
uint32_t io_status_block_ptr = SHIM_GET_ARG_32(3);
uint32_t open_options = SHIM_GET_ARG_32(4);
X_OBJECT_ATTRIBUTES attrs(SHIM_MEM_BASE, object_attributes_ptr);
XELOGD(
"NtOpenFile(%.8X, %.8X, %.8X(%s), %.8X, %d)",
handle_ptr,
desired_access,
object_attributes_ptr,
attrs.object_name.buffer,
io_status_block_ptr,
open_options);
X_STATUS result = X_STATUS_NO_SUCH_FILE;
uint32_t info = X_FILE_DOES_NOT_EXIST;
uint32_t handle;
// Resolve the file using the virtual file system.
FileSystem* fs = state->file_system();
Entry* entry = fs->ResolvePath(attrs.object_name.buffer);
XFile* file = NULL;
if (entry && entry->type() == Entry::kTypeFile) {
// Open the file.
result = entry->Open(
state,
desired_access,
false, // TODO(benvanik): pick async mode, if needed.
&file);
}
else {
result = X_STATUS_NO_SUCH_FILE;
info = X_FILE_DOES_NOT_EXIST;
}
if (XSUCCEEDED(result)) {
// Handle ref is incremented, so return that.
handle = file->handle();
file->Release();
result = X_STATUS_SUCCESS;
info = X_FILE_OPENED;
}
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 (XSUCCEEDED(result)) {
if (handle_ptr) {
SHIM_SET_MEM_32(handle_ptr, handle);
}
}
SHIM_SET_RETURN(result);
}
class xeNtReadFileState {