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[Kernel] Stub out xeObSplitName until cleaner version can be written

This commit is contained in:
disjtqz 2023-10-15 13:12:46 -04:00 committed by Radosław Gliński
parent 275454089e
commit 6a1d612495
1 changed files with 3 additions and 58 deletions
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61
src/xenia/kernel/xboxkrnl/xboxkrnl_ob.cc
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@ -11,6 +11,7 @@
#include "xenia/base/assert.h"
#include "xenia/base/atomic.h"
#include "xenia/base/logging.h"
#include "xenia/base/utf8.h"
#include "xenia/cpu/processor.h"
#include "xenia/kernel/kernel_state.h"
#include "xenia/kernel/util/shim_utils.h"
@ -23,68 +24,12 @@
namespace xe {
namespace kernel {
namespace xboxkrnl {
void xeObSplitName(X_ANSI_STRING input_string,
X_ANSI_STRING* leading_path_component,
X_ANSI_STRING* remaining_path_components,
PPCContext* context) {
leading_path_component->length = 0;
leading_path_component->maximum_length = 0;
leading_path_component->pointer = 0;
remaining_path_components->length = 0;
remaining_path_components->maximum_length = 0;
remaining_path_components->pointer = 0;
uint32_t input_length32 = input_string.length;
if (!input_length32) {
return;
}
unsigned char* input_string_buffer =
context->TranslateVirtual<uint8_t*>(input_string.pointer);
unsigned char first_char = *input_string_buffer;
// if it begins with a sep, start iterating at index 1
uint32_t starting_index = first_char == '\\' ? 1U : 0U;
// if the string is just a single sep and nothing else, set leading component
// to empty string w/ valid pointer and terminate
if (starting_index >= input_length32) {
leading_path_component->length = 0U;
leading_path_component->maximum_length = 0U;
leading_path_component->pointer =
context->HostToGuestVirtual(&input_string_buffer[starting_index]);
return;
}
int32_t decrementer = (-static_cast<int32_t>(starting_index)) -1;
unsigned char* current_character_ptr = &input_string_buffer[starting_index];
uint32_t leading_path_component_length = 0;
uint16_t full_possible_length =
static_cast<uint16_t>(input_length32 - starting_index);
while (*current_character_ptr != '\\') {
++leading_path_component_length;
++current_character_ptr;
int32_t check_done = input_length32 + decrementer - 1;
decrementer--;
if (check_done == -1) {
// hit the end of the string! no remaining path components
leading_path_component->length = full_possible_length;
leading_path_component->maximum_length = full_possible_length;
leading_path_component->pointer =
context->HostToGuestVirtual(&input_string_buffer[starting_index]);
return;
}
}
// hit the end of the current components, but more components remain
leading_path_component->length = leading_path_component_length;
leading_path_component->maximum_length = leading_path_component_length;
leading_path_component->pointer =
context->HostToGuestVirtual(&input_string_buffer[starting_index]);
uint16_t remainder_length = static_cast<uint16_t>(
input_length32 - (first_char == '\\') + ~leading_path_component_length);
remaining_path_components->length = remainder_length;
remaining_path_components->pointer =
context->HostToGuestVirtual(&input_string_buffer[-decrementer]);
remaining_path_components->maximum_length = remainder_length;
xe::FatalError("xeObSplitName unimplemented!");
}
uint32_t xeObHashObjectName(X_ANSI_STRING* ElementName, PPCContext* context) {