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WaitSynchronizationN: Handle case where handle_count=0.

This commit is contained in:
bunnei 2015-01-17 12:17:36 -05:00
parent 7faf2d8e06
commit 064be2b86f
1 changed files with 27 additions and 17 deletions
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44
src/core/hle/svc.cpp
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@ -148,27 +148,37 @@ static Result WaitSynchronizationN(s32* out, Handle* handles, s32 handle_count,
bool wait_all_succeeded = false; bool wait_all_succeeded = false;
int handle_index = 0; int handle_index = 0;
while (handle_index < handle_count) { // If handles were passed in, iterate through them and wait/acquire the objects as needed
SharedPtr<Kernel::Object> object = Kernel::g_handle_table.GetGeneric(handles[handle_index]); if (handle_count > 0) {
if (object == nullptr) while (handle_index < handle_count) {
return InvalidHandle(ErrorModule::Kernel).raw; SharedPtr<Kernel::Object> object = Kernel::g_handle_table.GetGeneric(handles[handle_index]);
if (object == nullptr)
return InvalidHandle(ErrorModule::Kernel).raw;
ResultVal<bool> wait = object->WaitSynchronization(handle_index); ResultVal<bool> wait = object->WaitSynchronization(handle_index);
wait_thread = (wait.Succeeded() && *wait); wait_thread = (wait.Succeeded() && *wait);
// If this object waited and we are waiting on all objects to synchronize // If this object waited and we are waiting on all objects to synchronize
if (wait_thread && wait_all) { if (wait_thread && wait_all) {
// Enforce later on that this thread does not continue // Enforce later on that this thread does not continue
wait_all_succeeded = true; wait_all_succeeded = true;
}
// If this object synchronized and we are not waiting on all objects to synchronize
if (!wait_thread && !wait_all)
// We're done, the thread will continue
break;
handle_index++;
}
}else {
// If no handles were passed in, put the thread to sleep only when wait_all=false
// NOTE: This is supposed to deadlock if no timeout was specified
if (!wait_all) {
wait_thread = true;
Kernel::WaitCurrentThread(WAITTYPE_SLEEP);
} }
// If this object synchronized and we are not waiting on all objects to synchronize
if (!wait_thread && !wait_all)
// We're done, the thread will continue
break;
handle_index++;
} }
// Change the thread state to waiting if blocking on all handles... // Change the thread state to waiting if blocking on all handles...