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author | bunnei <ericbunnie@gmail.com> | 2014-05-17 06:56:00 +0200 |
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committer | bunnei <ericbunnie@gmail.com> | 2014-05-17 06:56:00 +0200 |
commit | 14ae026386cf3f984d60401e2104165c3ca3266b (patch) | |
tree | ccd112ad636e166799d321a8072582a4e66150c1 /src/core/hle/kernel/thread.cpp | |
parent | added MIN, MAX, and CLAMP macros to common_funcs (diff) | |
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Diffstat (limited to 'src/core/hle/kernel/thread.cpp')
-rw-r--r-- | src/core/hle/kernel/thread.cpp | 141 |
1 files changed, 90 insertions, 51 deletions
diff --git a/src/core/hle/kernel/thread.cpp b/src/core/hle/kernel/thread.cpp index 76a73747d..b967b3c62 100644 --- a/src/core/hle/kernel/thread.cpp +++ b/src/core/hle/kernel/thread.cpp @@ -21,20 +21,14 @@ // Enums -enum ThreadPriority { - THREADPRIO_HIGHEST = 0, - THREADPRIO_DEFAULT = 16, - THREADPRIO_LOWEST = 31, -}; - enum ThreadStatus { - THREADSTATUS_RUNNING = 1, - THREADSTATUS_READY = 2, - THREADSTATUS_WAIT = 4, - THREADSTATUS_SUSPEND = 8, - THREADSTATUS_DORMANT = 16, - THREADSTATUS_DEAD = 32, - THREADSTATUS_WAITSUSPEND = THREADSTATUS_WAIT | THREADSTATUS_SUSPEND + THREADSTATUS_RUNNING = 1, + THREADSTATUS_READY = 2, + THREADSTATUS_WAIT = 4, + THREADSTATUS_SUSPEND = 8, + THREADSTATUS_DORMANT = 16, + THREADSTATUS_DEAD = 32, + THREADSTATUS_WAITSUSPEND = THREADSTATUS_WAIT | THREADSTATUS_SUSPEND }; enum WaitType { @@ -46,8 +40,6 @@ enum WaitType { WAITTYPE_VBLANK, WAITTYPE_MUTEX, WAITTYPE_SYNCH, - - NUM_WAITTYPES }; typedef s32 Handle; @@ -164,32 +156,6 @@ void __KernelResetThread(Thread *t, s32 lowest_priority) { t->wait_type = WAITTYPE_NONE; } -/// Creates a new thread -Thread *__KernelCreateThread(Handle &handle, const char *name, u32 entry_point, s32 priority, - s32 processor_id, u32 stack_top, int stack_size) { - static u32 _handle_count = 1; - - Thread *t = new Thread; - - handle = (_handle_count++); - - g_thread_queue.push_back(handle); - g_thread_ready_queue.prepare(priority); - - t->status = THREADSTATUS_DORMANT; - t->entry_point = entry_point; - t->stack_top = stack_top; - t->stack_size = stack_size; - t->initial_priority = t->current_priority = priority; - t->processor_id = processor_id; - t->wait_type = WAITTYPE_NONE; - - strncpy(t->name, name, KERNEL_MAX_NAME_LENGTH); - t->name[KERNEL_MAX_NAME_LENGTH] = '\0'; - - return t; -} - /// Change a thread to "ready" state void __KernelChangeReadyState(Thread *t, bool ready) { Handle handle = t->GetHandle(); @@ -222,6 +188,79 @@ void __KernelChangeThreadState(Thread *t, ThreadStatus new_status) { } } +/// Calls a thread by marking it as "ready" (note: will not actually execute until current thread yields) +void __KernelCallThread(Thread *t) { + // Stop waiting + if (t->wait_type != WAITTYPE_NONE) { + t->wait_type = WAITTYPE_NONE; + } + __KernelChangeThreadState(t, THREADSTATUS_READY); +} + +/// Creates a new thread +Thread *__KernelCreateThread(Handle &handle, const char *name, u32 entry_point, s32 priority, + s32 processor_id, u32 stack_top, int stack_size) { + + Thread *t = new Thread; + + handle = g_kernel_objects.Create(t); + + g_thread_queue.push_back(handle); + g_thread_ready_queue.prepare(priority); + + t->status = THREADSTATUS_DORMANT; + t->entry_point = entry_point; + t->stack_top = stack_top; + t->stack_size = stack_size; + t->initial_priority = t->current_priority = priority; + t->processor_id = processor_id; + t->wait_type = WAITTYPE_NONE; + + strncpy(t->name, name, KERNEL_MAX_NAME_LENGTH); + t->name[KERNEL_MAX_NAME_LENGTH] = '\0'; + + return t; +} + +/// Creates a new thread - wrapper for external user +Handle __KernelCreateThread(const char *name, u32 entry_point, s32 priority, s32 processor_id, + u32 stack_top, int stack_size) { + if (name == NULL) { + ERROR_LOG(KERNEL, "__KernelCreateThread(): NULL name"); + return -1; + } + if ((u32)stack_size < 0x200) { + ERROR_LOG(KERNEL, "__KernelCreateThread(name=%s): invalid stack_size=0x%08X", name, + stack_size); + return -1; + } + if (priority < THREADPRIO_HIGHEST || priority > THREADPRIO_LOWEST) { + s32 new_priority = CLAMP(priority, THREADPRIO_HIGHEST, THREADPRIO_LOWEST); + WARN_LOG(KERNEL, "__KernelCreateThread(name=%s): invalid priority=0x%08X, clamping to %08X", + name, priority, new_priority); + // TODO(bunnei): Clamping to a valid priority is not necessarily correct behavior... Confirm + // validity of this + priority = new_priority; + } + if (!Memory::GetPointer(entry_point)) { + ERROR_LOG(KERNEL, "__KernelCreateThread(name=%s): invalid entry %08x", name, entry_point); + return -1; + } + Handle handle; + Thread *t = __KernelCreateThread(handle, name, entry_point, priority, processor_id, stack_top, + stack_size); + + HLE::EatCycles(32000); + + // This won't schedule to the new thread, but it may to one woken from eating cycles. + // Technically, this should not eat all at once, and reschedule in the middle, but that's hard. + HLE::ReSchedule("thread created"); + + __KernelCallThread(t); + + return handle; +} + /// Switches CPU context to that of the specified thread void __KernelSwitchContext(Thread* t, const char *reason) { Thread *cur = __GetCurrentThread(); @@ -262,22 +301,13 @@ Thread *__KernelNextThread() { return g_kernel_objects.GetFast<Thread>(next); } -/// Calls a thread by marking it as "ready" (note: will not actually execute until current thread yields) -void __KernelCallThread(Thread *t) { - // Stop waiting - if (t->wait_type != WAITTYPE_NONE) { - t->wait_type = WAITTYPE_NONE; - } - __KernelChangeThreadState(t, THREADSTATUS_READY); -} - /// Sets up the primary application thread Handle __KernelSetupMainThread(s32 priority, int stack_size) { Handle handle; // Initialize new "main" thread Thread *t = __KernelCreateThread(handle, "main", Core::g_app_core->GetPC(), priority, - 0xFFFFFFFE, Memory::SCRATCHPAD_VADDR_END, stack_size); + THREADPROCESSORID_0, Memory::SCRATCHPAD_VADDR_END, stack_size); __KernelResetThread(t, 0); @@ -322,6 +352,15 @@ void __KernelReschedule(const char *reason) { } } +//////////////////////////////////////////////////////////////////////////////////////////////////// + +/// Wait thread - on WaitSynchronization +void __KernelWaitThread_Synchronization() { + // TODO(bunnei): Just a placeholder function for now... FixMe + __KernelWaitCurThread(WAITTYPE_SYNCH, "waitSynchronization called"); +} + +//////////////////////////////////////////////////////////////////////////////////////////////////// void __KernelThreadingInit() { } |