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Merge pull request #9904 from liamwhite/ws

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kernel: fix WaitSynchronization
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liamwhite 2023-03-08 09:16:17 -05:00 committed by GitHub
commit b5d61f214d
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1 changed files with 29 additions and 16 deletions
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45
src/core/hle/kernel/svc/svc_synchronization.cpp
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@ -48,19 +48,15 @@ Result ResetSignal(Core::System& system, Handle handle) {
return ResultInvalidHandle;
}
/// Wait for the given handles to synchronize, timeout after the specified nanoseconds
Result WaitSynchronization(Core::System& system, s32* index, VAddr handles_address, s32 num_handles,
s64 nano_seconds) {
LOG_TRACE(Kernel_SVC, "called handles_address=0x{:X}, num_handles={}, nano_seconds={}",
handles_address, num_handles, nano_seconds);
static Result WaitSynchronization(Core::System& system, int32_t* out_index, const Handle* handles,
int32_t num_handles, int64_t timeout_ns) {
// Ensure number of handles is valid.
R_UNLESS(0 <= num_handles && num_handles <= ArgumentHandleCountMax, ResultOutOfRange);
R_UNLESS(0 <= num_handles && num_handles <= Svc::ArgumentHandleCountMax, ResultOutOfRange);
// Get the synchronization context.
auto& kernel = system.Kernel();
auto& handle_table = GetCurrentProcess(kernel).GetHandleTable();
std::vector<KSynchronizationObject*> objs(num_handles);
const auto& handle_table = GetCurrentProcess(kernel).GetHandleTable();
Handle* handles = system.Memory().GetPointer<Handle>(handles_address);
// Copy user handles.
if (num_handles > 0) {
@ -68,21 +64,38 @@ Result WaitSynchronization(Core::System& system, s32* index, VAddr handles_addre
R_UNLESS(handle_table.GetMultipleObjects<KSynchronizationObject>(objs.data(), handles,
num_handles),
ResultInvalidHandle);
for (const auto& obj : objs) {
kernel.RegisterInUseObject(obj);
}
}
// Ensure handles are closed when we're done.
SCOPE_EXIT({
for (s32 i = 0; i < num_handles; ++i) {
kernel.UnregisterInUseObject(objs[i]);
for (auto i = 0; i < num_handles; ++i) {
objs[i]->Close();
}
});
return KSynchronizationObject::Wait(kernel, index, objs.data(), static_cast<s32>(objs.size()),
nano_seconds);
// Wait on the objects.
Result res = KSynchronizationObject::Wait(kernel, out_index, objs.data(),
static_cast<s32>(objs.size()), timeout_ns);
R_SUCCEED_IF(res == ResultSessionClosed);
R_RETURN(res);
}
/// Wait for the given handles to synchronize, timeout after the specified nanoseconds
Result WaitSynchronization(Core::System& system, int32_t* out_index, VAddr user_handles,
int32_t num_handles, int64_t timeout_ns) {
LOG_TRACE(Kernel_SVC, "called user_handles={:#x}, num_handles={}, timeout_ns={}", user_handles,
num_handles, timeout_ns);
// Ensure number of handles is valid.
R_UNLESS(0 <= num_handles && num_handles <= Svc::ArgumentHandleCountMax, ResultOutOfRange);
std::vector<Handle> handles(num_handles);
if (num_handles > 0) {
system.Memory().ReadBlock(user_handles, handles.data(), num_handles * sizeof(Handle));
}
R_RETURN(WaitSynchronization(system, out_index, handles.data(), num_handles, timeout_ns));
}
/// Resumes a thread waiting on WaitSynchronization