fabi/Xenia-Canary
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[Kernel] ExInitializeReadWriteLock

Browse Source
This commit is contained in:
Dr. Chat
2018-05-07 18:46:15 -05:00
parent f3134e265a
commit dcca5f587e
4 changed files with 313 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
src/xenia/kernel/xboxkrnl/xboxkrnl_threading.cc
View File

@@ -1251,6 +1251,28 @@ SHIM_CALL KeRemoveQueueDpc_shim(PPCContext* ppc_context,
SHIM_SET_RETURN_32(result ? 1 : 0);
}
// https://github.com/Cxbx-Reloaded/Cxbx-Reloaded/blob/51e4dfcaacfdbd1a9692272931a436371492f72d/import/OpenXDK/include/xboxkrnl/xboxkrnl.h#L1372
struct X_ERWLOCK {
be<int32_t> lock_count; // 0x0
be<uint32_t> writers_waiting_count; // 0x4
be<uint32_t> readers_waiting_count; // 0x8
be<uint32_t> readers_entry_count; // 0xC
X_KEVENT writer_event; // 0x10
X_KSEMAPHORE reader_semaphore; // 0x20
be<uint32_t> spin_lock; // 0x34
};
void ExInitializeReadWriteLock(pointer_t<X_ERWLOCK> lock_ptr) {
lock_ptr->lock_count = -1;
lock_ptr->writers_waiting_count = 0;
lock_ptr->readers_waiting_count = 0;
lock_ptr->readers_entry_count = 0;
KeInitializeEvent(&lock_ptr->writer_event, 1, 0);
KeInitializeSemaphore(&lock_ptr->reader_semaphore, 0, 0x7FFFFFFF);
}
DECLARE_XBOXKRNL_EXPORT(ExInitializeReadWriteLock,
ExportTag::kThreading | ExportTag::kImplemented);
// NOTE: This function is very commonly inlined, and probably won't be called!
pointer_result_t InterlockedPushEntrySList(
pointer_t<X_SLIST_HEADER> plist_ptr, pointer_t<X_SINGLE_LIST_ENTRY> entry) {