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Lv2 lwmutex "true" syscalls experimentally implemented

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This commit is contained in:
Nekotekina 2015-03-09 04:30:34 +03:00
parent 507798c541
commit 8155ef5e67
3 changed files with 142 additions and 29 deletions
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20
rpcs3/Emu/SysCalls/Modules/sysPrxForUser.cpp
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@ -139,7 +139,7 @@ s32 sys_lwmutex_destroy(PPUThread& CPU, vm::ptr<sys_lwmutex_t> lwmutex)
}
// call the syscall
if (s32 res = _sys_lwmutex_destroy(CPU, lwmutex->sleep_queue))
if (s32 res = _sys_lwmutex_destroy(lwmutex->sleep_queue))
{
// unlock the mutex if failed
sys_lwmutex_unlock(CPU, lwmutex);
@ -209,20 +209,21 @@ s32 sys_lwmutex_lock(PPUThread& CPU, vm::ptr<sys_lwmutex_t> lwmutex, u64 timeout
}
}
lwmutex->waiter.atomic_op([](be_t<u32>& value){ value++; });
// atomically increment waiter value using 64 bit op
lwmutex->all_info.atomic_op([](be_t<u64>& value){ value++; });
if (lwmutex->owner.compare_and_swap_test(lwmutex::free, tid))
{
// locking succeeded
lwmutex->waiter.atomic_op([](be_t<u32>& value){ value--; });
lwmutex->all_info.atomic_op([](be_t<u64>& value){ value--; });
return CELL_OK;
}
// lock using the syscall
const s32 res = _sys_lwmutex_lock(CPU, lwmutex->sleep_queue, timeout);
const s32 res = _sys_lwmutex_lock(lwmutex->sleep_queue, timeout);
lwmutex->waiter.atomic_op([](be_t<u32>& value){ value--; });
lwmutex->all_info.atomic_op([](be_t<u64>& value){ value--; });
if (res == CELL_OK)
{
@ -285,10 +286,10 @@ s32 sys_lwmutex_trylock(PPUThread& CPU, vm::ptr<sys_lwmutex_t> lwmutex)
return CELL_EINVAL;
}
if (old_owner.data() == se32(lwmutex_busy))
if (old_owner.data() == se32(lwmutex_reserved))
{
// should be locked by the syscall
const s32 res = _sys_lwmutex_trylock(CPU, lwmutex->sleep_queue);
const s32 res = _sys_lwmutex_trylock(lwmutex->sleep_queue);
if (res == CELL_OK)
{
@ -335,10 +336,11 @@ s32 sys_lwmutex_unlock(PPUThread& CPU, vm::ptr<sys_lwmutex_t> lwmutex)
// TODO (protocol is ignored in current implementation)
}
lwmutex->owner.exchange(lwmutex::busy);
// set special value
lwmutex->owner.exchange(lwmutex::reserved);
// call the syscall
if (_sys_lwmutex_unlock(CPU, lwmutex->sleep_queue) == CELL_ESRCH)
if (_sys_lwmutex_unlock(lwmutex->sleep_queue) == CELL_ESRCH)
{
return CELL_ESRCH;
}