Files
wibo/dll/kernel32/interlockedapi.cpp

52 lines
1.5 KiB
C++

#include "interlockedapi.h"
#include "common.h"
#include "context.h"
#include <cstring>
namespace kernel32 {
LONG WINAPI InterlockedIncrement(LONG volatile *Addend) {
HOST_CONTEXT_GUARD();
VERBOSE_LOG("InterlockedIncrement(%p)\n", Addend);
auto *ptr = const_cast<LONG *>(Addend);
return __atomic_add_fetch(ptr, 1, __ATOMIC_SEQ_CST);
}
LONG WINAPI InterlockedDecrement(LONG volatile *Addend) {
HOST_CONTEXT_GUARD();
VERBOSE_LOG("InterlockedDecrement(%p)\n", Addend);
auto *ptr = const_cast<LONG *>(Addend);
return __atomic_sub_fetch(ptr, 1, __ATOMIC_SEQ_CST);
}
LONG WINAPI InterlockedExchange(LONG volatile *Target, LONG Value) {
HOST_CONTEXT_GUARD();
VERBOSE_LOG("InterlockedExchange(%p, %ld)\n", Target, static_cast<long>(Value));
auto *ptr = const_cast<LONG *>(Target);
return __atomic_exchange_n(ptr, Value, __ATOMIC_SEQ_CST);
}
LONG WINAPI InterlockedCompareExchange(LONG volatile *Destination, LONG Exchange, LONG Comperand) {
HOST_CONTEXT_GUARD();
VERBOSE_LOG("InterlockedCompareExchange(%p, %ld, %ld)\n", Destination, static_cast<long>(Exchange),
static_cast<long>(Comperand));
auto *ptr = const_cast<LONG *>(Destination);
LONG expected = Comperand;
__atomic_compare_exchange_n(ptr, &expected, Exchange, false, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST);
return expected;
}
void WINAPI InitializeSListHead(PSLIST_HEADER ListHead) {
HOST_CONTEXT_GUARD();
DEBUG_LOG("InitializeSListHead(%p)\n", ListHead);
if (!ListHead) {
return;
}
std::memset(ListHead, 0, sizeof(*ListHead));
}
} // namespace kernel32