From c2588403c0b8cf198f13f903f626851c7e94266c Mon Sep 17 00:00:00 2001 From: Yuri Kunde Schlesner Date: Thu, 23 Oct 2014 01:20:01 -0200 Subject: HLE: Revamp error handling throrough the HLE code All service calls in the CTR OS return result codes indicating the success or failure of the call. Previous to this commit, Citra's HLE emulation of services and the kernel universally either ignored errors or returned dummy -1 error codes. This commit makes an initial effort to provide an infrastructure for error reporting and propagation which can be use going forward to make HLE calls accurately return errors as the original system. A few parts of the code have been updated to use the new system where applicable. One part of this effort is the definition of the `ResultCode` type, which provides facilities for constructing and parsing error codes in the structured format used by the CTR. The `ResultVal` type builds on `ResultCode` by providing a container for values returned by function that can report errors. It enforces that correct error checking will be done on function returns by preventing the use of the return value if the function returned an error code. Currently this change is mostly internal since errors are still suppressed on the ARM<->HLE border, as a temporary compatibility hack. As functionality is implemented and tested this hack can be eventually removed. --- src/core/hle/kernel/mutex.cpp | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) (limited to 'src/core/hle/kernel/mutex.cpp') diff --git a/src/core/hle/kernel/mutex.cpp b/src/core/hle/kernel/mutex.cpp index 31129fd86..e4ff1ef40 100644 --- a/src/core/hle/kernel/mutex.cpp +++ b/src/core/hle/kernel/mutex.cpp @@ -32,10 +32,10 @@ public: * @param wait Boolean wait set if current thread should wait as a result of sync operation * @return Result of operation, 0 on success, otherwise error code */ - Result SyncRequest(bool* wait) override { + ResultVal SyncRequest() override { // TODO(bunnei): ImplementMe locked = true; - return 0; + return MakeResult(false); } /** @@ -43,15 +43,14 @@ public: * @param wait Boolean wait set if current thread should wait as a result of sync operation * @return Result of operation, 0 on success, otherwise error code */ - Result WaitSynchronization(bool* wait) override { + ResultVal WaitSynchronization() override { // TODO(bunnei): ImplementMe - *wait = locked; - + bool wait = locked; if (locked) { Kernel::WaitCurrentThread(WAITTYPE_MUTEX, GetHandle()); } - return 0; + return MakeResult(wait); } }; @@ -119,15 +118,17 @@ bool ReleaseMutex(Mutex* mutex) { * Releases a mutex * @param handle Handle to mutex to release */ -Result ReleaseMutex(Handle handle) { - Mutex* mutex = Kernel::g_object_pool.GetFast(handle); - - _assert_msg_(KERNEL, (mutex != nullptr), "ReleaseMutex tried to release a nullptr mutex!"); +ResultCode ReleaseMutex(Handle handle) { + Mutex* mutex = Kernel::g_object_pool.Get(handle); + if (mutex == nullptr) return InvalidHandle(ErrorModule::Kernel); if (!ReleaseMutex(mutex)) { - return -1; + // TODO(yuriks): Verify error code, this one was pulled out of thin air. I'm not even sure + // what error condition this is supposed to be signaling. + return ResultCode(ErrorDescription::AlreadyDone, ErrorModule::Kernel, + ErrorSummary::NothingHappened, ErrorLevel::Temporary); } - return 0; + return RESULT_SUCCESS; } /** -- cgit v1.2.3 From 22c86824a4e4fe8953d7104f2fbdf853d3d30c60 Mon Sep 17 00:00:00 2001 From: Yuri Kunde Schlesner Date: Fri, 31 Oct 2014 21:19:20 -0200 Subject: Remove duplicated docs/update them for changed parameters. --- src/core/hle/kernel/mutex.cpp | 10 ---------- 1 file changed, 10 deletions(-) (limited to 'src/core/hle/kernel/mutex.cpp') diff --git a/src/core/hle/kernel/mutex.cpp b/src/core/hle/kernel/mutex.cpp index e4ff1ef40..b303ba128 100644 --- a/src/core/hle/kernel/mutex.cpp +++ b/src/core/hle/kernel/mutex.cpp @@ -27,22 +27,12 @@ public: std::vector waiting_threads; ///< Threads that are waiting for the mutex std::string name; ///< Name of mutex (optional) - /** - * Synchronize kernel object - * @param wait Boolean wait set if current thread should wait as a result of sync operation - * @return Result of operation, 0 on success, otherwise error code - */ ResultVal SyncRequest() override { // TODO(bunnei): ImplementMe locked = true; return MakeResult(false); } - /** - * Wait for kernel object to synchronize - * @param wait Boolean wait set if current thread should wait as a result of sync operation - * @return Result of operation, 0 on success, otherwise error code - */ ResultVal WaitSynchronization() override { // TODO(bunnei): ImplementMe bool wait = locked; -- cgit v1.2.3