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InterlockedFlushSList and rewrote InterlockedPopEntrySList

This commit is contained in:
Dr. Chat 2015-06-04 16:21:25 -05:00
parent 4f807a669c
commit 88672eff4f
1 changed files with 24 additions and 16 deletions
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40
src/xenia/kernel/xboxkrnl_threading.cc
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@ -1325,31 +1325,41 @@ SHIM_CALL KeRemoveQueueDpc_shim(PPCContext* ppc_context,
xe::mutex global_list_mutex_;
// http://www.nirsoft.net/kernel_struct/vista/SLIST_HEADER.html
SHIM_CALL InterlockedPopEntrySList_shim(PPCContext* ppc_context,
KernelState* kernel_state) {
uint32_t plist_ptr = SHIM_GET_ARG_32(0);
XELOGD("InterlockedPopEntrySList(%.8X)", plist_ptr);
struct SLIST_HEADER {
xe::be<uint32_t> next;
xe::be<uint16_t> depth;
xe::be<uint16_t> sequence;
};
pointer_result_t InterlockedPopEntrySList(pointer_t<SLIST_HEADER> plist_ptr) {
std::lock_guard<xe::mutex> lock(global_list_mutex_);
uint8_t* p = kernel_state->memory()->TranslateVirtual(plist_ptr);
auto first = xe::load_and_swap<uint32_t>(p);
uint32_t first = plist_ptr->next;
if (first == 0) {
// List empty!
SHIM_SET_RETURN_32(0);
return;
return 0;
}
uint8_t* p2 = kernel_state->memory()->TranslateVirtual(first);
auto second = xe::load_and_swap<uint32_t>(p2);
// Get the second element.
uint8_t* p = kernel_memory()->TranslateVirtual(first);
auto second = xe::load_and_swap<uint32_t>(p);
// Now drop the first element
xe::store_and_swap<uint32_t>(p, second);
plist_ptr->next = second;
// Return the one we popped
SHIM_SET_RETURN_32(first);
return first;
}
DECLARE_XBOXKRNL_EXPORT(InterlockedPopEntrySList, ExportTag::kImplemented);
pointer_result_t InterlockedFlushSList(pointer_t<SLIST_HEADER> plist_ptr) {
std::lock_guard<xe::mutex> lock(global_list_mutex_);
uint32_t next = plist_ptr->next;
plist_ptr->next = 0;
return next;
}
DECLARE_XBOXKRNL_EXPORT(InterlockedFlushSList, ExportTag::kImplemented);
} // namespace kernel
} // namespace xe
@ -1426,6 +1436,4 @@ void xe::kernel::xboxkrnl::RegisterThreadingExports(
SHIM_SET_MAPPING("xboxkrnl.exe", KeInitializeDpc, state);
SHIM_SET_MAPPING("xboxkrnl.exe", KeInsertQueueDpc, state);
SHIM_SET_MAPPING("xboxkrnl.exe", KeRemoveQueueDpc, state);
SHIM_SET_MAPPING("xboxkrnl.exe", InterlockedPopEntrySList, state);
}